Results 1 to 10 of about 2,159,677 (261)

Diffuse reflection and reciprocity-protected transmission via a random-flip metasurface. [PDF]

open access: yesSci Adv, 2021
Diffuse reflection and undistorted transmission, which seem to be incompatible, are integrated into a random-flip metasurface.
Chu H   +8 more
europepmc   +2 more sources

Whitish daytime radiative cooling using diffuse reflection of non-resonant silica nanoshells. [PDF]

open access: yesSci Rep, 2020
Daytime radiative cooling offers efficient passive cooling of objects by tailoring their spectral responses, holding great promise for green photonics applications. A specular reflector has been utilized in cooling devices to minimize sunlight absorption,
Suichi T   +4 more
europepmc   +2 more sources

Impact of inner-wall reflection on UV reactor performance as evaluated by using computational fluid dynamics: The role of diffuse reflection

open access: yesWater Research, 2017
Making use of the reflected ultraviolet (UV) radiation with a reflective inner wall is a promising way to improve UV reactor performance. In this study, the impact of inner-wall reflection on UV reactor performance was evaluated in annular single-lamp UV
Jiuhui Qu, Mengkai Li, Zhimin Qiang
exaly   +2 more sources

Diffuse reflection inside a hexagonal nanocavity. [PDF]

open access: yesSci Rep, 2013
Geometrical diffuse reflection is a common optical phenomenon that occurs when a reflecting surface has roughness of order of hundreds of micrometres. Light rays thus reflect uniformly in all directions with each ray obeying Snell's law.
Wang N   +5 more
europepmc   +2 more sources

A generalized Knudsen theory for gas transport with specular and diffuse reflections

open access: yesNature Communications, 2023
Gas permeation through nanopores is a long-standing research interest because of its importance in fundamental science and many technologies. The free molecular flow is conventionally described by Knudsen theory, under the diffuse reflection assumption ...
JianHao Qian, HengAn Wu, FengChao Wang
doaj   +2 more sources

Theoretical and experimental study on the application of diffuse-reflection concentrators in PV/T solar system

open access: yesInternational Journal of Energy Research, 2016
In order to improve the practicability of PV/T solar system, we proposed the theory and method on the application of diffuse‐reflection concentrator in the PV/T solar system and analyzed the concentration characteristics of this proposed application.
Yongtai He
exaly   +2 more sources

Portable, Fiber-Based, Diffuse Reflection Spectroscopy (DRS) Systems for Estimating Tissue Optical Properties

open access: yesApplied Spectroscopy, 2011
Steady-state diffuse reflection spectroscopy is a well-studied optical technique that can provide a noninvasive and quantitative method for characterizing the absorption and scattering properties of biological tissues.
Nimmi Ramanujam, Karthik Vishwanath
exaly   +2 more sources

Thin film-based colorful radiative cooler using diffuse reflection for color display

open access: yesPhotoniX, 2023
Colorful radiative coolers (CRCs) can be widely applied for energy sustainability especially and meet aesthetic purposes simultaneously. Here, we propose a high-efficiency CRC based on thin film stacks and engineered diffuse reflection unit, which brings
Junren Wen   +11 more
semanticscholar   +1 more source

Diffuse Reflection Effects in Visible Light Positioning: Analysis, Modeling, and Evaluation

open access: yesElectronics, 2023
Currently, the Global Positioning System (GPS) is widely used, but its signal is attenuated by factors such as trees, walls, and ceilings, which severely degrade its positioning accuracy.
Yuanpeng Zhang   +5 more
semanticscholar   +1 more source

RESTORE: Low-Energy Drone-Assisted NLoS-FSO Emergency Communications

open access: yesIEEE Access, 2022
Drones are becoming an alternative for the rapid but temporary deployment of data-communication infrastructure in disaster-struck areas. A drone may be equipped with communications equipment to provide network connectivity for stranded users and first ...
Paa Kwesi Esubonteng   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy