Results 81 to 90 of about 4,315 (300)

Unity Quantum Yield of High‐Entropy Quantum Dots Composited With Photonic Crystals for Information Encryption

Advanced Science, EarlyView.
This study first extends the high‐entropy concept to I‐III‐VI quantum dots (QDs) and synthesizes CZCrGSe/ZnSe/ZnS core/shell/shell QDs with a record photoluminescence quantum yield (PLQY) of 100%. Their ZnSe/ZnS double shell efficiently passivates defects and boosts structural stability.
Maoyuan Huang, Ziqiang Tian, Binkun Xie, Haiyang Li, Bo Tan, Chang He, Shiliang Mei, Wanlu Zhang, Changchun Wang, Ruiqian Guo   +9 more
wiley   +1 more source

Redefining Crystalline Silicon: Unlocking New Horizons in Transparent and Flexible Photovoltaics

Advanced Energy Materials, EarlyView.
Crystalline silicon is presented as a platform for transparent and flexible photovoltaics. This review article outlines design principles for optical strategies to fabricate transparent silicon solar cells, mechanical strategies that mitigate silicon brittleness, and emerging concepts such as singlet‐fission spectral conversion and tandem architectures,
Kangmin Lee
wiley   +1 more source

A parametric sensitivity analysis of the impact of built environment geometrical variables on building energy consumption [PDF]

, 2017
The growth of urban communities creates the need for analytical frameworks that have a multiobjective and holistic approach. It is important to integrate these frameworks within commonly used architectural tools.
Lannon, Simon, Lila, Anas
core  

Advancing on a Dynamic Metric to Assess Daylight Sufficiency Based on People's Perception of Daylight Availability in the Tropics

Building and Environment
Dynamic daylight metrics provide valuable information about indoor daylighting performance over time. While a dynamic metric representing occupants’ perception is still needed, no consensus exists about the best-fitted metric and its targets. We hypothesize that outdoor daylight availability drives the perception of sufficient daylight indoors.
Lucas Arango-Diaz, Natalia Giraldo Vasquez, Beatriz Piderit Moreno   +2 more
openaire   +1 more source

High‐Speed Altitude Regulation With Neuromorphic Camera and Lightweight Embedded Computation

Advanced Intelligent Systems, EarlyView.
Neuromorphic cameras deliver rapid, high‐dynamic‐range sensing but overwhelm embedded processors at high speeds. This work presents a lightweight, optimized Lucas–Kanade optical flow method with parallelization, gyroscopic derotation, and adaptive event slicing.
Simon L. Jeger, Alessandro Marchei, Charbel Toumieh, Dario Floreano   +3 more
wiley   +1 more source

Using solar screens in school classrooms in hot arid areas: The effect of different aspect ratios on daylighting levels [PDF]

, 2017
Hot arid areas are endowed with an abundance of clear skies. Thus, the solar energy available can significantly raise the temperature of interior spaces and also result in an uncomfortable visual environment.
Ampatzi, Eleni, Jenkins, Huw, Kotbi, Ahmad   +2 more
core  

Daylighting standards: Do we have the correct metrics? [PDF]

Proceedings of the 21st International Conference LIGHT SVĚTLO 2015, 2015
Daylight in buildings is important in a number of ways and can bring benefits to building users and save energy. There are a number of ways to regulate the quality of daylit environments. The paper studies the way daylight adequacy is controlled in current guidance together with other metrics that are in use.
openaire   +1 more source

Melatonin Levels in 89 Individuals With Smith Magenis Syndrome

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT In patients with Smith–Magenis syndrome (SMS), an inverted circadian rhythm of melatonin (MT) contributes to the sleep disturbance. Standard treatment of sleep disturbance with MT often leads to extremely high daytime MT levels, resulting in even more sleep disorders. We therefore retrospectively evaluated the MT data of 89 SMS patients.
Wiebe Braam, Ann C. M. Smith
wiley   +1 more source

Comparison of Various Sky Model for Daylighting Availability Inside The Classroom with Bilateral Opening Typology in The Tropics

Journal of Applied Engineering and Technological Science
This study compares daylighting performance under four sky models of a classroom in tropical climates to understand the differences in illuminance and uniformity values.
Atthaillah Atthaillah, Muhammad Iqbal, Badriana Badriana, Putri Sri Alisia Nabila   +3 more
doaj   +1 more source

Exploration of Adaptive Origami Shading Concepts through Integrated Dynamic Simulations

, 2018
This paper presents integrated energy and lighting simulations as a part of wider research focused on the form-finding process of adaptive shading concepts and on the actuation of shading movement using shape memory alloys (SMAs).
Fiorito, Francesco, Masera, Gabriele, Pesenti, Marco   +2 more
core   +1 more source