Results 101 to 110 of about 1,240,387 (295)

Driver optimization of high power converter based on BIGT reverse conduction loss

IET Power Electronics
Bi‐mode Insulated Gate Transistor (BIGT), owing to its notable attributes in power density and compact dimensions, holds promising applications in the realm of high power converters.
Lei Qi, Ze Li, Xiangyu Zhang, Jin Yang, Yuanfang Lu, Jingfei Wang, Fuyue Wen, Kefeng Wang, Xinyu Hu   +8 more
doaj   +1 more source

On-line evaluation method of CVT internal insulation state considering the influence of primary voltage fluctuation

Diance yu yibiao
Capacitive voltage transformer (CVT) are widely used measurement equipment in high-voltage power grids. Real-time online assessment of the internal insulation state of CVT will help maintain the safety and stability of power systems.
XING Yu, XU Yunwu, ZHAI Xiaohui, SUN Kai, CHEN Qing, BAO Zhiwei   +5 more
doaj   +1 more source

A Discrete-Time Low-Frequency-Ratio Nearest Level Modulation Strategy for Modular Multilevel Converters With Small Number of Power Modules

IEEE Access, 2019
There has been increased usage of modular multilevel converters (MMCs) in the medium-voltage traction drives for increased efficiency and reduced switching losses.
Ke Shen, Shaozhe Wang, Dan Zhao, Guodong Zhao   +3 more
doaj   +1 more source

Bistability signatures in nonequilibrium charge transport through molecular quantum dots

, 2012
We investigate the transient nonequilibrium dynamics of a molecular junction biased by a finite voltage and strongly coupled to internal vibrational degrees of freedom.
Albrecht, Klaus Ferdinand, Komnik, Andreas, Muehlbacher, Lothar, Thoss, Michael, Wang, Haobin   +4 more
core   +1 more source

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai, Yoshitaka Kurihara, Fumi Yamauchi, Hiromi Hosoya, Takeshi Saito   +4 more
wiley   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

State of Research on Effects of Cloud to Ground Lightning Transients on High Voltage Polymeric Insulated Power Cables

Electrica, 2021
Mudang Taro, Saibal Chatterjee
doaj   +1 more source

Insulation Aging Evaluation Method of High Voltage Cable Based on Dielectric Loss Characteristics

Energies
Health assessments of high-voltage power cables are important for stable operations of power grids; however, most current health assessment model parameters lack whole cable test data, making them unable to effectively characterize the insulation aging ...
Tao Han, Wenhao Li, Zeping Zheng, Yanqing Li, Jia Chu, Chunlin Hao   +5 more
doaj   +1 more source