Results 41 to 50 of about 5,547,320 (286)

Lighting Design Optimization in a Plant Factory Using an Optical Simulation and Differential Evolution

Horticulturae
The light environment in a plant factory with artificial light (PFAL) can be determined based on the optical properties of the plants or structural components and lighting design (LD).
Kota Saito, Eiji Goto
doaj   +1 more source

Advantages of Diffuse Light for Horticultural Production and Perspectives for Further Research

Frontiers in Plant Science, 2015
Plants use diffuse light more efficiently than direct light, which is well established due to diffuse light penetrates deeper into the canopy and photosynthetic rate of a single leaf shows a curvilinear response to the light flux density.
Tao eLi, Qichang eYang
doaj   +1 more source

Evaluation of Visual and Nonvisual Levels of Daylight from Spectral Power Distributions Considering Orientation and Seasonality

Applied Sciences, 2021
The evaluation of both visual and nonvisual effects from the spectral power distribution (SPD) of outdoor light is critical in lighting design. The dome-light SPD characteristically changes continuously depending on the seasonality, orientation, altitude
Silvia Ezpeleta, Elvira Orduna-Hospital, Justiniano Aporta, María José Luesma, Isabel Pinilla, Ana Sánchez-Cano   +5 more
doaj   +1 more source

Thermal noise and oscillations of photon distribution for squeezed and correlated light

, 1993
The oscillations of photon distribution function for squeezed and correlated light are shown to decrease when the temperature increases.The influence of the squeezing parameter and photon quadrature correlation coefficient on the photon distribution ...
Caves, Dodonov, Dodonov, Dodonov, Dodonov, Dodonov, Glauber, Heisenberg, Hollenhorst, L. Rosa, O.V. Man'ko, Robertson, Schleich, Schrödinger, Stoler, V.I. Man'ko, V.V. Dodonov, Vourdas   +17 more
core   +1 more source

Enhancing Light Utilization Efficiency of Dragon Fruit Canopies Using Bi-Directional Adjustable-Focusing LED Lighting System

IEEE Photonics Journal
Commercial light-emitting diodes (LEDs) offer fixed lighting patterns with limited canopy coverage, creating a mismatch with dragon fruit’s dynamic photosynthetic and phenological needs.
Qiannan Jiang, Qiaoyang Zhang, Haiyun Chen, Jiacheng Ruan, Wensong Wang, Tama Fouzder, Ji Wang, Hua Xiao   +7 more
doaj   +1 more source

Light-cone distribution amplitudes of a light baryon in large-momentum effective theory

Journal of High Energy Physics, 2023
Momentum distributions of quarks/gluons inside a light baryon in a hard exclusive process are encoded in the light-cone distribution amplitudes (LCDAs).
Zhi-Fu Deng, Chao Han, Wei Wang, Jun Zeng, Jia-Lu Zhang   +4 more
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Effect of Spatial-Temporal Light Competition on Cotton Yield and Yield Distribution

Agronomy, 2021
The photosynthetically active radiation (PAR) of crop canopy is highly related to yield formation, but how it relates to yield and yield distribution is not well understood.
Qingru Wang, Huanxuan Chen, Yingchun Han, Fangfang Xing, Zhanbiao Wang, Lu Feng, Guoping Wang, Beifang Yang, Yaping Lei, Shiwu Xiong, Xiaofei Li, Minghua Xin, Wenli Du, Yabing Li   +13 more
doaj   +1 more source

Optimizing illumination in the greenhouse using a 3D model of tomato and a ray tracer

Frontiers in Plant Science, 2014
Reduction of energy use for assimilation lighting is one of the most urgent goals of current greenhouse horticulture in the Netherlands. In recent years numerous lighting systems have been tested in greenhouses, yet their efficiency has been very ...
Pieter Huibert Bram De Visser, Gerie evan der Heijden, Gerhard eBuck-Sorlin   +2 more
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Influence of a Light Source Installed in a Luminaire of Opal Sphere Type on the Effect of Light Pollution

Energies, 2020
The article presents the results of the studies concerning the influence of a light source installed in luminaire of opal sphere type on the light pollution effect of the night sky.
Przemyslaw Tabaka, Pawel Rozga
doaj   +1 more source

Energy Distribution of a Stationary Beam of Light

, 2003
Aguirregabiria et al showed that Einstein, Landau and Lifshitz, Papapetrou, and Weinberg energy-momentum complexes coincide for all Kerr-Schild metric.
A. Chamorro, A. Komar, A. Papapetrou, C. Møller, C. Møller, C. W. Misner, D. Bak, D. Bak, D. H. Bernstein, F. I. Cooperstock, F. I. Cooperstock, G. Bergqvist, H. Bondi, I. C. Yang, I. Radinschi, J. M. Aguirregabiria, K. S. Virbhadra, K. S. Virbhadra, K. S. Virbhadra, K. S. Virbhadra, L. D. Landau, R. C. Tolman, R. Penrose, Ragab M. Gad, S. N. Gupta, S. S. Xulu, S. S. Xulu, S. S. Xulu, S. S. Xulu, S. S. Xulu, S. Weinberg, T. Bringley, W. B. Bonnor   +32 more
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