Results 91 to 100 of about 19,423 (223)
BMC Gastroenterology, 2012 Background The variable-stiffness colonoscope (VSC) appears to have advantages over the standard adult colonoscope (SAC), although data are conflicting. To provide a comprehensive up-to-date review, we conducted a meta-analysis to compare the efficacies ...
Xie Qin, Chen Bin, Liu Liu, Gan Huatian
doaj +1 more source
Colorectal Disease, Volume 28, Issue 9, September 2026.Abstract Background Over recent decades, there has been a more pronounced shift towards earlier therapeutic intervention in luminal Crohn's disease (CD). However, it remains unclear if similar strategies apply to active perianal fistulizing CD (pCD). This study explores the patient journey by assessing pCD management across diagnostic time periods in a
Michiel T. J. Bak +80 more
wiley +1 more source
Voltage Stability Control Strategy for Interconnected Systems Through VSC-HVDC
工程科学与技术, 2017 :Due to the independent control of active and reactive power,voltage source converter (VSC) base on HVDC system can not only distribute power in DC system,but also improve the stability of AC system connected by VSC-HVDC.In order to fully excavate the ...
曾琦, 李兴源, 张立奎, 邓旗
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Global Flash Drought Prediction Through Evaporative Stress Forecasting
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract Flash droughts pose severe risks to societies and ecosystems due to their sudden onset and rapid intensification. Predicting their vegetation impacts at subseasonal timescales remains difficult. Advances in hybrid physics‐AI models and weather forecasting create new opportunities to enhance the predictability of evaporative stress, a key ...
Qiqi Gou +8 more
wiley +1 more source
How Modeling Assumptions Shape Predictions of Convective Mixing of Carbon Dioxide
Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.Abstract We investigate how models of fluid properties and boundary conditions influence predictions of convective mixing in confined porous media, with relevance to subsurface carbon dioxide storage. Using high‐resolution simulations at high Rayleigh‐Darcy numbers (O(104 ${10}^{4}$)), we analyze miscible fluids with linear, nonlinear, and non ...
Marco De Paoli, Sergio Pirozzoli
wiley +1 more source
Emergence of Multiple Polaritonic States of Water‐in‐Salt in Cavity
Nanophotonics, Volume 15, Issue 16, 26 August 2026.Water‐in‐salt electrolytes exhibit multiple hydration‐specific OH stretching modes that cooperatively couple to a Fabry–Perot cavity, generating distinct polaritonic states. Unlike conventional water systems described by approximated homogeneous broadening, the observed multimode polariton formation reflects the interplay between vibrational ...
Tomohiro Fukushima +4 more
wiley +1 more source
Small-signal stability analysis of multi-terminal VSC-based dc transmission systems
, 2012 A model suitable for small-signal stability analysis and control design of multi-terminal dc networks is presented. A generic test network that combines conventional synchronous and offshore wind generation connected to shore via a dc network is used to ...
Anaya-Lara, Olimpo +4 more
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Combinação da abordagem estrutura variável na síntese de algoritmos de controle preditivo e nebuloso [PDF]
, 2002 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós -Graduação em Engenharia Elétrica.Neste trabalho as concepções de projeto do controle a estrutura variável (VSC) baseado nos do controle de variância ...
Sumar, Rodrigo Rodrigues
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Tạp chí Khoa học và Công nghệBài báo nghiên cứu lựa chọn các giải pháp đấu nối nhà máy điện gió ngoài khơi vào hệ thống điện Việt Nam, với hai giải pháp đấu nối hiện nay là truyền tải điện xoay chiều (HVAC) và truyền tải điện một chiều (HVDC).
Le Hong Lam +3 more
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Application and development of power electronic devices in VSC-HVDC transmission system
机车电传动, 2023 Voltage sourced converter based high voltage direct current (VSC-HVDC) is the core technology of new type of power systems with new energy as its main part.
YANG Liu +5 more
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