Results 121 to 130 of about 372,503 (352)

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

Advanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh, Siqi Liu, Nurul F. Himma, Béla Fiser, Andrea I. Schäfer   +4 more
wiley   +1 more source

Enabling High-Power Conditioning and High-Voltage Bus Integration Using Series-Connected DC Transformers in Spacecrafts

Aerospace
This article proposes a photovoltaic power processor for high-voltage and high-power distribution bus, between 300 V and 900 V, to be used in future space platforms like large space stations or lunar bases.
Carlos Orts, Ausiàs Garrigós, David Marroquí, Antxon Arrizabalaga, Andreas Franke   +4 more
doaj   +1 more source

Silicon device performance measurements to support temperature range enhancement [PDF]

Semiconductor power devices are typically rated for operation below 150 C. Little data is known for power semiconductors over 150 C. In most cases, the device is derated to zero operating power at 175 C.
Askew, Ray, Bromstead, James, Johnson, R. Wayne, Weir, Bennett   +3 more
core   +1 more source

Multilayer Thermionic Refrigerator and Generator

, 1998
A new method of refrigeration is proposed. Cooling is obtained by thermionic emission of electrons over periodic barriers in a multilayer geometry.
G. D. Mahan, J. O. Sofo, M. Bartkowiak, Zakordonets V. S.   +3 more
core   +1 more source

High-Power Supersymmetric Semiconductor Laser with a Narrow Linewidth [PDF]

, 2023
Yuanbo Xu, Ting Fu, Jian Fan, Wenzhen Liu, Hongwei Qu, Mingjin Wang, Wanhua Zheng   +6 more
openalex   +1 more source

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

Advanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam, Pravin Karna, Niraj Bhatt, Sandip Thakur, Helge Heinrich, Daniel M. Hirt, Saman Zare, Christopher Jezewski, Rinus T.P. Lee, Kandabara Tapily, John T. Gaskins, Colin D. Landon, Sean W. King, Ashutosh Giri, Patrick E. Hopkins   +14 more
wiley   +1 more source

Research on Power Semiconductor Converter Technology for Rail Transit Applications

机车电传动, 2020
The core of the development of high-power converter technology lies in power semiconductor technology. The iterative optimization of traditional silicon-based power semiconductor devices and the gradually maturity of new wide-band gap material ...
Yu QI, Zechun DOU, Rongjun DING
doaj  

The Power of Materials Science Tools for Gaining Insights into Organic Semiconductors [PDF]

, 2015
Neil D. Treat, Paul Westacott, Natalie Stingelin   +2 more
openalex   +1 more source

Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology

Advanced Functional Materials, EarlyView.
This study presents the BioCLEAR system, a highly transparent and conductive neural electrode array composed of silver nanowires (AgNWs) and doped PEDOT:PSS, enabling neural recordings with minimal optical artifacts. When integrated with a GRIN lens, this cost‐effective neural implant allows simultaneous electrophysiological recording and GCaMP6‐based ...
Dongjun Han, Kevin Cheng, Swathy Sampath Kumar, Anil Bollimunta, Elizabeth E. Torr, Juhwan Kim, Kyoungmin Kim, Hyungjun Choi, Seongkwon Hwang, Sarah Brodnick, David Cheng, Lindsay Gray, Yei Hwan Jung, William L. Murphy, Aaron J. Suminski, Jonathan J. Nassi, Justin C. Williams, Dong‐Wook Park   +17 more
wiley   +1 more source

Online Calibration Method for High-Precision On-State Voltage Measurement of Power Semiconductors

IEEE Access
This paper presents an online high-precision calibration method for on-state voltage measurement of power semiconductors using active temperature control.
Karla Drazenovic, Luka Matic, Viktor Sunde, Zeljko Ban   +3 more
doaj   +1 more source