Results 61 to 70 of about 29,405 (266)

Pull‐and‐Push Nanotherapeutic Hydrogels: Scavenging Inflammatory Triggers While Driving Tissue Regeneration in Burn Wounds

Advanced Functional Materials, EarlyView.
A nanounit‐assembled hydrogel employing a “pull‐and‐push” strategy simultaneously scavenges pro‐inflammatory cell‐free DNA (cfDNA) and delivers regenerative therapeutics in response to burn‐induced hyperthermia. By repolarizing macrophages and promoting angiogenesis, this multifunctional platform accelerates burn wound healing, offering a blueprint for
Han‐Sem Kim, Seong‐Jin Shin, Sak Lee, Nandin Mandakhbayar, Ji‐Hye Kang, Da‐Young Kong, Seong‐Doo Hong, Ueon Sang Shin, Hae‐Won Kim, Jung‐Hwan Lee   +9 more
wiley   +1 more source

Design and Application of Drive and Protection Circuit of 6 500 V IGBT Based on 1SC0450V

机车电传动, 2017
The drive characteristics of 1SC0450V was introduced in detail, and the implementation principle of drive supply circuit, supply under-voltage protection, advanced active clamp and short-circuit protection were analyzed. 6 500 V IGBT drive and protection
WANG Lei, YANG Lu, LI Shourong, GAO Sheng   +3 more
doaj  

Transparent and Robust LiCl–Organohydrogel Triboelectric Nanogenerator With Deep Learning Assisted Sensing

Advanced Functional Materials, EarlyView.
Develop a LiCl–PEI–PAM hydrogel with 3000% stretchability and excellent optical transparency. Through comparative studies of various salts, confirm that LiCl is the most suitable salt for high TENG output. Achieve excellent freeze‐resistant, dry‐resistant, and rapid self‐healing (10 s) properties even in extreme environments. Balance ionic conductivity,
Hai Anh Thi Le, Thien Trung Luu, Duc‐Manh Dinh, Kyehan Rhee, Kyungwho Choi, Dukhyun Choi, Yong Tae Park   +6 more
wiley   +1 more source

Fault location scheme of HVDC converter based on fault loop analysis

International Journal of Electrical Power & Energy Systems
In order to solve the problem that multiple faults in the converter area will trigger the valve short-circuit protection action, and the fault location cannot be directly located according to the protection action result, a novel converter fault location
Dalin Mu, Guo Lei, Tingwei Xu, Haiqiang Zhang, Xiaopeng Li, Sheng Lin   +5 more
doaj   +1 more source

CLL resonant converters with output short-circuit protection

IEE Proceedings - Electric Power Applications, 2005
The use of harmonic excitation of resonant converters as a means of limiting excessive electrical stresses on power switches, and tank components, in the event of over-current or output short-circuit fault conditions is investigated. It is demonstrated that the excitation of the primary tank resonance, by odd harmonics of the square-wave input voltage,
C Gould, Chris Bingham, M P Foster, D A Stone   +3 more
openaire   +2 more sources

Controlled Engineering of 2D Alkali‐Iron‐Chloride Compounds and Lateral Quantum Heterostructures Within Confined Graphene Nanoreactors

Advanced Functional Materials, EarlyView.
This work presents a programmable atomic engineering strategy for 2D materials using Å‐scale nanoreactors formed by bilayer graphene (BLG) intercalation. A new class of alkali‐iron‐chloride compounds, along with lateral heterostructures composed of monolayer alkali halides and iron chlorides, is revealed.
Haiming Sun, Qiunan Liu, Yung‐Chang Lin, Mahdi Ghorbani‐Asl, Hiroki Ago, Arkady V. Krasheninnikov, Kazu Suenaga   +6 more
wiley   +1 more source

Application of Under-Impedance Criterion to Protect against Effects of Phase-to-Phase Short Circuits in Medium-Voltage Networks

Energies
Common overcurrent criteria used to detect phase-to-phase short circuits in medium-voltage (MV) networks in some cases do not bring the expected results.
Beata Zięba, Bartosz Olejnik, Iwona Grobelna   +2 more
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Portable Breathing Monitoring With Phase‐Resolved Airflow Dynamics Enabled by a Dual‐Response Flexible PZT Sensor

Advanced Healthcare Materials, EarlyView.
A portable respiratory monitoring device based on a flexible PZT sensor captures pressure‐ and temperature‐related airflow responses in a single waveform. Polarity‐opposed piezoelectric and pyroelectric components generate a narrow transient spike and a broad quasi‐steady peak during both inhalation and exhalation. This dual‐component structure enables
Minyu Li, Jun Aoyama, Yuchao Wu, Tomomi Uchiyama, Kosho Yoshikawa, Toshiki Mano, Yuxi Song, Hedong Zhang   +7 more
wiley   +1 more source

Analysis and Research of High-power IGBT Short-circuit Energy

机车电传动, 2019
In view of the high-power IGBT short-circuit protection technology, the IGBT short-circuit reason and protective principle was introduced. The short circuit time of IGBT was verified to be closely related to its working voltage by short circuit test ...
Lu YANG, Lei WANG, Shourong LI
doaj