Results 41 to 50 of about 11,211 (264)
Reactive compensation scheme of three phase unbalance based on AC chopper device
Gong-kuang zidonghua, 2013 The paper proposed a scheme of using AC chopper device to compensate three phase unbalanced system dynamically and gave the device structure. The simulation result verified that the AC chopper device can adjust output voltage by changing duty ratio, and ...
CHENG Shun-zu, GUO Xi-jin, LI Su-ying
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Mesin Chopper untuk Meningkatkan Kualitas dan Kuantitas Pakan Usaha Ternak Kambing “Arrahman”
Warta LPMThe "Arrahman" partner is located in Kerten, Krincing Village, Secang District, Magelang manages around 200 to 300 goats. The process of preparing cattle fodder such as elephant grass and corn stalks is done manually using a knife.
Rany Puspita Dewi +2 more
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Auto-Phase-Locked Time-Resolved Luminescence Detection: Principles, Applications, and Prospects
Frontiers in Chemistry, 2020 Time-resolved luminescence measurement is a useful technique which can eliminate the background signals from scattering and short-lived autofluorescence. However, the relative instruments always require pulsed excitation sources and high-speed detectors.
Qisheng Deng, Zece Zhu, Xuewen Shu
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Advanced Functional Materials, EarlyView.This work presents a ligand‐pairing strategy that reconstructs lead sulfide quantum dot surfaces for efficient short‐wave infrared optoelectronics. A low‐reactivity thiourea precursor combined with hydrobromic acid enables monodisperse and fully passivated quantum dots.
Dongeon Kim +16 more
wiley +1 more source
Applied SciencesThis paper proposes a three-stage op amp based on the SOI (silicon-on-insulator) process, which achieves a low offset voltage and temperature coefficient across a wide temperature range from −40 °C to 250 °C.
Zhong Yang +5 more
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Tailored Diketopyrrolopyrrole Derivatives for Efficient Deep‐Red Organic Lasers
Advanced Functional Materials, EarlyView.Tailored diketopyrrolopyrrole derivatives exhibit high stable amplified spontaneous emission with single or dual bands. Incorporated into distributed‐feedback lasers based on one‐ and two‐dimensional dichromated‐gelatin diffractive gratings, these materials provide a robust, flexible platform for integrated organic deep‐red light sources. ABSTRACT Deep‐
Pablo Pasqués‐Gramage +10 more
wiley +1 more source
Make‐Use‐Remake: Toward Indefinite Low‐Temperature Material Loops
Advanced Functional Materials, EarlyView.We introduce a regenerable materials platform built from microparticles bound by a temperature‐responsive polymer shell, enabling strong, processable structures from diverse feedstocks. The material is shaped at low temperatures (80°C) using common manufacturing methods and reprocessed repeatedly in the presence of water, demonstrating stable ...
Nikola Křivánková +2 more
wiley +1 more source
Impact des émissions EM conduites produites par un hacheur abaisseur
Revue des Énergies Renouvelables, 2017 L'utilisation variée, dans la vie quotidienne, de dispositifs d'électronique de puissance notamment les convertisseurs statiques est devenue de plus en plus courante.
S. Rezini, Z. Azzouz
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Speed/Torque Estimation and Control of a DC Machine in Four Quadrants Operation Modes
مجلة النهرين للعلوم الهندسية, 2018 Transfer function characteristics of a DC machine are used in this paper to estimate speed and torque in four quadrant operation modes. Estimation speed and torque control based on a DC machine transfer function is implemented by measuring the DC ...
Rakan Khalil Antar
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Advanced Healthcare Materials, EarlyView.A nanofiber‐supported decellularized extracellular matrix (NaDE) membrane recreates key biochemical and mechanical features of native intestinal tissue. This platform enables the formation of a more physiologically relevant intestinal epithelium, enhancing stem cell maintenance and promoting diverse cell differentiation.
Jaeseung Youn +7 more
wiley +1 more source