Results 41 to 50 of about 54,334 (284)

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Research on High-voltage System and Test Standards of Railway Vehicles

机车电传动, 2020
The differences between international standards and national standards related to high-voltage system for railway vehicles were analyzed and summarized.
Haibo ZHAO, Deqiang YUAN, Guoqin ZHANG, Chunli SONG   +3 more
doaj  

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

Advanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora, Francesco Carulli, Nadir Vanni, Antonella Giuri, Elena Ferrari, Matteo Masino, Laura Lazzarini, Francesca Rossi, Gianluca Accorsi, Anna Moliterni, Davide Altamura, Cinzia Giannini, Luca Cappelletti, Gianluca Quarta, Alberto Quaranta, Rosanna Mastria, Anna Paola Caricato, Sergio Brovelli, Aurora Rizzo   +18 more
wiley   +1 more source

Study on the impact of AC system operating frequency elevation on overvoltage characteristics and equipment insulation levels of converter stations

Zhejiang dianli
The economic advantages of medium-frequency AC collection and flexible DC transmission make it a key choice for deep-sea wind power development， where overvoltage and insulation coordination emerge as critical technical bottlenecks.
YE Wenyao, LU Yi, QIAN Zhengxu, XU Feng, LU Chengyu, ZHANG Zheren, XU Zheng   +6 more
doaj   +1 more source

Research, Creative Works, and Commercialization at UAA FY15 through FY16 YTD. [PDF]

, 2016
The UAA Research and Commercialization trend is upward. UAA is experiencing significant growth in research, creative works, and commercialization. We are pursuing a strategic approach to fostering, supporting, and expanding faculty and student research ...
University of Alaska Anchorage
core  

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

Analysis of Transformer Insulation Risk Due to Back Flashover Lightning on High Voltage Substations by Considering the Effect of Environmental Pollution [PDF]

مجله مدل سازی در مهندسی
The improved limiting parameter method of Monte Carlo is used in this study to estimate the impact of back-flashover (BF) due to lightning and provide an evaluation criterion for the insulation risk of the transformer in the high-voltage substation.
Faridoddin Safaei, Mohsen Niasati
doaj   +1 more source

Partial Discharge in Electronic Equipments [PDF]

, 2009
Tato disertační práce se věnuje studiu částečných výbojů (PD) způsobených poklesem spolehlivosti a životnosti elektronických zařízení a systémů. Diagnostika PD je dnes známá metoda pro vysoké napětí u vysoko-výkonných zařízení.
Mammadov, Anar
core  

The growth of ZnO crystals from the melt

, 2008
The peculiar properties of zinc oxide (ZnO) make this material interesting for very different applications like light emitting diodes, lasers, and piezoelectric transducers.
Bates, D. Klimm, D. Schulz, Desgreniers, Frank, Gadzhiev, Halvorson, Helbig, Iwanaga, Jordan, Logan, Look, Machida, Maeda, Miller, Naumowicz, Nause, Nause, Ohshima, R. Fornari, Reynolds, Richman, S. Ganschow, Sadofev, Sato, Schiefelbein, Schulz, Tomm, Uecker, Wanklyn, Wenzl   +30 more
core   +1 more source

Complex Cryptographic and User‐Centric Physically Unclonable Functions Enabled by Strain‐Sensitive Nanocrystals via Selective Ligand Exchange

Advanced Functional Materials, EarlyView.
This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim, Hanseok Seo, Taesung Park, Byung Ku Jung, Junhyeok Park, Young Kyun Choi, Dae Yang Oh, Soong Ju Oh   +7 more
wiley   +1 more source