aiponics-blog

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Calculate NDVI in Python

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Measuring Vegetation (NDVI & EVI)

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Dutch Bucket Hydroponic

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Dutch Bucket Hydroponics I

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Aiponics Concept

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Greenhouse construction Part II

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Greenhouse I

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Solar Air conditionner Part I

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Solar Air Conditionner Part II

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Polycarbonate

This glazing material is rigid, lightweight, easy to work with and is resistant to high impacts and fire. Typical light transmission (PAR) is 79 % for double wall and 87 % for single wall. The estimated lifetime is now over 10 years or more, depending on the type. There is some yellowing of the material with age. Single wall polycarbonate can be bent in half and straightened, without creasing!

- Previously, polycarbonate was known to scratch easily and have poor weatherability and UV resistance. However, recent advances in material properties have alleviated some of these earlier problems by coating the outer layer with acrylic.

- Also, recent advances have produced polycarbonates with light transmission properties equal to or even exceeding glass. “DynaGlas” (reg. TM of Palram Americas) is a single walled, corrugated polycarbonate which is used on the UA/CEAC teaching greenhouse. It has a light transmission of 90% and blocks nearly 100% of the UV light (this was a concern early on since the bumble bees used for pollination (Chapter 7) “see” in the UV range – and although it may take the bees a few days to get oriented, they get use to the “dark” conditions in the greenhouse and are effective pollinators).

- Other DynaGlas products include polycarbonates with 85% transmission and 100%

diffusion of light to reduce shadows on the plants.

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Simple hydroponics setup