Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"light quality"”.
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Algal bioproducts : investigating the effect of light quality on metabolite production by photosynthetic diatoms
… of environmental growth conditions including light. To achieve this, laboratory scale photobioreactors were used to continuously monitor environmental factors to record biological responses of 𝘊. 𝘮𝘶𝘦𝘭𝘭𝘦𝘳𝘪 to different environmental conditions including light wavelengths. A brief introduction …
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A Bath House in Suzhou, China
… bath house by studying the structural order and light quality, to make the bath house not only a place for body hygiene, but also a place for mind relaxation and rejuvenation.
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Ecological significance of seed traits in the genus Macaranga
… by seed mass via effects on the sensitivity to light quality and soil moisture availability for germination, and via susceptibility to predators and pathogens. In this study ten Macaranga species (Euphorbiaceae) varying in seed mass and adult crown illumination were used as a study system to …
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WayFinding: A Story Told Through The Senses
… different textures, floral fragrances, and light quality. This is a story that takes you on a journey through a community center and narrates how the different senses are engaged, specifically with regards to wayfinding. In three different chapters you will feel the touch of a wall, follow a …
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Energetics of maize C4 physiology under light limiting conditions
… complexities, C4 plants are highly sensitive to light conditions. Under limiting light, the activity of the CCM generally decreases, causing an increase in leakiness, (Φ), the ratio of CO2 retrodiffusing from the BS relative to C4 carboxylation processes. This increase in Φ had been theoretically …
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Dynamic Environmental Control of a Vertical Farm for Lettuce Production
… improving agricultural productivity and crop quality while addressing sustainability concerns around energy consumed by lighting systems as well as overall resource use. Previous efforts in dynamic controls in vertical farming have built on an abundance of literature on yields, resource use …
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Ecological effects of turbidity variations in and around dredging areas in the Port of Tauranga
Turbidity is the scattering of light in water bodies and is an important measurement for assessing water quality in coastal systems. Suspended particles in the water column can greatly impact on light penetration and measured turbidity levels. These suspended particles can originate from a range of …
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The maximum quantum efficiency of CO2 assimilation declines with depth in the canopies of the C4 crops Miscanthus x giganteus and Zea mays
… productivity. φ is thought to increase at low light in the C4 crop Miscanthus x giganteus (M. x giganteus) (Kromdijk et al., 2008). This should reduce photosynthetic light use efficiency (PLUE) in the lower canopy. Zea mays (Z. mays), a close relative, may share this problem. Measurements were …
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Characterising GIGANTEA interactors: the BELL-LIKE HOMEODOMAIN 3 and BELL-LIKE HOMEODOMAIN 10 proteins
… time cue is day length and it is proposed that light signals are perceived and measured by an interaction between photoreceptors and an internal pacemaker, the circadian clock. The control of flowering has been best characterised in the model plant Arabidopsis thaliana L. Heynh (Arabidopsis). …
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Quality and Yield Responses of Seven Warm Season Forage Grasses to Partial Shading in a Simulated Silvopasture in East Texas
… were constructed that simulated the quantity, quality, and overall light regime found beneath loblolly pine stands arranged for silvopasture. The forages selected for the study included ‘Tifton 9’ bahiagrass (<em>Paspalum notatum</em>), ‘Tifton 85’ bermudagrass (<em>Cynodon dactylon</em>), …
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A physiological and genetic analysis of the role of phytochrome in photoperiodic induction of flowering in Arabidopsis Thaliana
… were induced in plants older than 10 days. From light quality experiments it was concluded that both a blue light photoreceptor and phytochrome promoted flowering. The induction of flowering by phytochrome was through a HIR mode. Three of the photoreceptor mutants, hy, isolated by Koornneef et …
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BASIC AND APPLIED RESEARCH APPROACHES FOR OPTIMIZING THE USE OF ARTIFICIAL LIGHT IN VEGETABLE CROPS
Light-emitting diode (LED) lights are a desirable alternative to outdated lighting systems due to their numerous benefits, including programmability and efficiency in energy consumption. But before switching from traditional broad-waveband lighting systems to narrow-wavelength LED lighting, there …
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High performance incandescent lighting
The efficiency of incandescent light bulbs (ILBs) is inherently very low due to significant emission at infrared wavelengths, diminishing its market share rapidly. ILBs with cold-side filters that transmit visible light but reflect infrared radiation back to the filament can surpass …
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High performance electronic systems for high bay light emitting diodes fed from alternating current power grids
Light-Emitting Diodes (LEDs) are increasingly becoming our main source of artificial light in our homes, offices or streets due to their reliability, long life, luminous efficacy and low maintenance requirements. However, LEDs are diodes, which means that the current is able to go through them in …