Results 101 to 110 of about 24,010 (297)

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

Advanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song, Evelyn Kubacki, Alexander Berger, Markus Retsch   +3 more
wiley   +1 more source

Fast impedance matching for the ion cyctron resonance heating system based on capacitors at the EAST tokamak [PDF]

EPJ Web of Conferences
This paper presents an impedance matching system based on real-time feedback control, designed to address impedance mismatching issues in radio frequency (RF) systems.
Guo Yaoyao, Liu Lunan, Zhang Xinjun, Qin Chengming, Zhang Wei, Chen Qingqing   +5 more
doaj   +1 more source

Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing

, 2010
We report on the design, fabrication and testing of two superconducting passive microwave components, a quadrature hybrid and a 20 dB directional coupler.
Hilton, G. C., Irwin, K. D., Ku, H. S., Lehnert, K. W., Mallet, F., Russek, S. E., Vale, L. R.   +6 more
core   +1 more source

Direct UV-written broadband directional planar waveguide couplers

Optics Express, 2005
We report the fabrication of broadband directional couplers by direct UV-writing. The fabrication process is shown to be beneficial, robust and flexible. The components are compact and show superior performance in terms of loss and broadband operation.
OLIVERO, MASSIMO, M. SVALGAARD
openaire   +2 more sources

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

A Prototype for a Passive Resonant Interferometric Fiber Optic Gyroscope with a 3 × 3 Directional Coupler. [PDF]

Sensors (Basel), 2023
Ovchinnikov KA, Gilev DG, Krishtop VV, Volyntsev AB, Maximenko VA, Garkushin AA, Filatov YV, Kukaev AS, Sevryugin AA, Shalymov EV, Venediktova AV, Venediktov VY.   +11 more
europepmc   +1 more source

Reflectometer for receiver input impedance match measurement Patent [PDF]

, 1970
Reflectometer for receiver input impedance match ...
Stelzried, C. T.
core   +1 more source

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

Advanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio, Martina Mugnano, Valentina Marchesano, Alejandro Calabuig, Zhe Wang, Gennaro Giordano, Francesca Borrelli, Simonetta Grilli, Pietro Ferraro   +8 more
wiley   +1 more source

Design of an eight-hole directional coupler for W-band cryogenic receivers

Frontiers in Astronomy and Space Sciences
For the system noise temperature calibration of the K/Q/W triple-band cryogenic receiver on Tianma Radio Telescope (TMRT), a design of W-band eight-hole waveguide directional coupler is proposed in this paper.
Zhuoying Yan, Zhuoying Yan, Weiye Zhong, Weiye Zhong, Jia Ma, Hui Zhang, Chao Zhang, Zhengwei Pu, Zhengwei Pu, Junzhi Wang   +9 more
doaj   +1 more source

Multifunctional on-chip directional coupler for spectral and polarimetric routing of Bloch surface wave. [PDF]

Nanophotonics, 2022
Lei X, Wang R, Liu L, Xu C, Wu A, Zhan Q.   +5 more
europepmc   +1 more source