Results 31 to 40 of about 2,246,489 (158)

A Hybrid Ray-Racing and Radiosity Method for Calculating Radiation Transport and Illuminance Distribution in Spaces With Venetian Blinds [PDF]

, 2012
This paper presents a hybrid ray-tracing and radiosity method for processing luminous flux in spaces equipped with venetian blinds. The method considers both diffuse and specular characteristics of blinds and aims to establish a balance between ...
Chan, Ying-Chieh, Tzempelikos, Athanasios   +1 more
core   +1 more source

A Double‐Blind Randomised Controlled Crossover Trial of the Effect of Blue‐Enriched Ambient Light on Sleep in Older Adults With Sleep Disturbance: The CleverLights Study

Journal of Sleep Research, EarlyView.
ABSTRACT Light interventions have been investigated for treating sleep disturbances in older adults; however, findings are mixed. This proof‐of‐concept trial investigated the effect of blue‐enriched ambient light on electroencephalographic (EEG) sleep in older adults with self‐reported poor sleep.
Teha B. Pun, Craig L. Phillips, Nathaniel S. Marshall, Matthew Rahimi, Rick Wassing, Maria Comas, Angela L. D'Rozario, Camilla M. Hoyos, Delwyn J. Bartlett, Wenye Hu, Sharon L. Naismith, Sean Cain, Svetlana Postnova, Ronald R. Grunstein, Christopher J. Gordon   +14 more
wiley   +1 more source

Daylight performance of post-disaster container housing: a comparative study of alternative spatial configurations

Frontiers in Built Environment
Post-disaster container housing provides rapid temporary accommodation between emergency sheltering and permanent reconstruction. The spatial configuration of post-disaster settlements shapes spatial comfort, the provision and accessibility of communal ...
Feride Şener Yılmaz, Melody Safarkhani
doaj   +1 more source

The effects of spectrum, irradiance, and duration of exposure on light‐induced melatonin suppression in healthy adults

Photochemistry and Photobiology, EarlyView.
The left panel reports the measured time course data of melatonin concentration in the blood plasma of 17 BL‐Rs and 15 BL‐NRs at baseline, during a two‐hour stay in the dark, during a one‐hour light exposure to blue light, and again in the dark. The right panel shows the magnitude of melatonin concentration after 60 min of exposure to warm white, cool ...
Helmut Piazena, Leonora Franke, Ralf Uebelhack, Thomas Penzel, Ingo Fietze   +4 more
wiley   +1 more source

Effect of Window Area and Proportions of Iwan on Daylight in Adjacent Room: An Investigation in Yazd City [PDF]

Iranica Journal of Energy and Environment
Yazd is located in a hot-dry region with harsh weather conditions. Houses with an iwan were suitable for establishing comfort conditions in the past.
A. Kamyab, M. Mahmoudi Zarandi, M. Nikpour   +2 more
doaj   +1 more source

Enhancing System Dynamics Education Through Smartphone Sensor‐Based At‐Home Experiments

Computer Applications in Engineering Education, Volume 34, Issue 6, November 2026.
ABSTRACT The widespread use of smartphones among college students, combined with the sophisticated sensors these devices contain, enables their use as portable, low‐cost measurement systems when paired with simple physical setups. Such at‐home engineering experiments offer an engaging and flexible learning environment that can enhance students ...
Musa K. Jouaneh
wiley   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng, Yun Ye, Hongxing Xie, Yuanyi Liu, Ruihan Lin, Guangyou Liu, Tianyong Guan, Enguo Chen, Tailiang Guo   +8 more
wiley   +1 more source

Estimate daylight illuminance using the model formula of daylight illuminance distribution [PDF]

, 2014
知的照明システムにおける実証実験の結果から、机上面に照度センサを設置しない新たな知的照明システムが必要であると考えた。この制御手法では、机上面の外光照度を推定する必要がある。そこで我々は外光照度の推定について研究を行っている。しかし前報の外光照度推定手法では、照度計測やモデル式の探索などに膨大な時間が必要であった。そこで本稿では室内の外光照度分布について検証を基に外光照度分布のモデル式を導出し導出したモデル式を用いることで机上面の外光照度を推定する手法を提案する ...
中林, 弘光, Nakabayashi, Hiromitsu, 19645, 間, 博人, 9000249538226, Taniguchi, Takeshi, Aida, Hiroto, 桑島, 奨, 19680, ミキ, ミツノリ, 90150755, 9000242474259, 1000090150755, 19646, 15427, 19648, アイダ, ヒロト, 谷口, 武, ナカバヤシ, ヒロミツ, クワジマ, ショウ, 9000249538230, 三木, 光範, マツシタ, ショウヘイ, 9000249538196, DA10659506, 9000249538198, Kuwajima, Sho, 0000-0002-2170-8986, 9000237774540, イケガミ, ヒサノリ, Ikegami, Hisanori, 松下, 昌平, 池上, 久典, 18925, Matsushita, Shohei, Miki, Mitsunori, タニグチ, タケシ, 19516   +37 more
core   +1 more source

Simulated daylight versus conventional PDT for mild to moderate actinic keratoses: A randomized controlled trial

Journal of the European Academy of Dermatology and Venereology, Volume 40, Issue 10, Page 1713-1720, October 2026.
This single‐centre, randomized controlled trial showed that simulated daylight photodynamic therapy (SDL‐PDT, n = 785 lesions) was less effective than conventional photodynamic therapy (C‐PDT, n = 673 lesions) in treating mild to moderate actinic keratoses with 1‐year clearance rates of 71.0% for SDL‐PDT versus 85.3% for C‐PDT (p < 0.001). However, SDL‐
Alexandra Sjöholm, Eva Backman, Maja Modin, Julia Fougelberg, Magdalena Claeson, John Paoli   +5 more
wiley   +1 more source

Does Short‐Term Ambient Music Modify Perceptual and Cognitive Effects of Lighting Hue? A Brightness‐Controlled Study

Color Research &Application, Volume 51, Issue 5, September/October 2026.
Twenty‐nine participants completed subjective evaluations of the environment, emotional state surveys, and a Raven progressive matrices task with and without ambient music (d major, 74 bpm) under four lighting conditions (white, red, green, blue). White lighting yielded the highest ratings for visual clarity, brightness, happiness, and focus; red was ...
Jumanah Alawadhi, Dorukalp Durmus
wiley   +1 more source