Results 101 to 110 of about 20,988 (236)

Comparative Evaluation of the Effect of Different Polishing Systems on Surface Roughness of Permanent 3D‐Printed Resins and a CAD/CAM Restorative Material

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective This study evaluated the effects of polishing systems, staining solutions, and aging time on the surface roughness of Computer‐aided design and computer‐aided manufacturing (CAD/CAM) and three‐dimensional (3D)‐printed permanent restorative materials. Methods Three 3D‐printed resins (VarseoSmile Crown plus (VSC), Saremco PrintCrowntec
Nilay Bayraktar   +2 more
wiley   +1 more source

VSC-HVDC System for Industrial Plants With Onsite Generators

open access: yes, 2009
Modern industrial customers, such as pulp and paper industries, have increased the vulnerability to power quality problems. A voltage source converter based high-voltage direct current (VSC-HVDC) transmission has the potential to offer high power quality
Du, C. Q.   +11 more
core   +2 more sources

Does the variable-stiffness colonoscope makes colonoscopy easier? A meta-analysis of the efficacy of the variable stiffness colonoscope compared with the standard adult colonoscope

open access: yesBMC 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

Is HPC for you? A collective perspective on adopting high‐performance computing for bioimage analysis in imaging facilities

open access: yesJournal of Microscopy, EarlyView.
Abstract Biomedical sciences use various imaging technologies and bioimage analysis has become data‐intensive, often requiring resources that exceed those available on personal laptop computers or workstations. High‐performance computing (HPC) can solve most of the problems connected to the data burden of modern bioimaging, offering scalable and ...
Rocco D'Antuono   +9 more
wiley   +1 more source

Innervation of the anal canal revisited through micro‐CT imaging

open access: yesJournal of Anatomy, EarlyView.
This article demonstrates to utility of micro‐CT imaging for conduction micro‐CT experiments to explore the innervation of the pelvic area in human fetuses. It allows for the creation of intricate 3D models, which show that peripheral nerve crossings occur over the entire length of the rectum and hints towards development and sex related differences in
Daniël Docter   +9 more
wiley   +1 more source

Universal Power Flow Algorithm for Bipolar Multi-Terminal VSC-HVDC

open access: yes, 2020
An effective and accurate power flow algorithm provides control references for active power dispatch and initial steady state operating points, used for stability analysis, short-circuit calculations, and electromagnetic transient simulations, which is ...
Zhou Li   +3 more
core   +1 more source

Evaluation of the Volatile Sulfur Compound Stability in Breath Samples for Halitosis Remote Diagnosis

open access: yesOral Diseases, EarlyView.
ABSTRACT Background This study assessed the feasibility of remote halitosis diagnosis by evaluating VSC stability over 7 days and their association with periodontal parameters. Methods One hundred adult patients attending a periodontal examination were included.
Eirini Militsi   +4 more
wiley   +1 more source

Lựa chọn giải pháp đấu nối và phân tích ảnh hưởng của các nhà máy điện gió ngoài khơi đến ổn định hệ thống điện

open access: yesTạp chí Khoa học và Công nghệ
Bài 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
doaj  

Application and development of power electronic devices in VSC-HVDC transmission system

open access: yes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
doaj  

Hybrid HVDC for supply of power to offshore oil platforms [PDF]

open access: yes, 2004
A HVDC hybrid system, comprising a line commutated thyristor HVDC converter and a STATCOM, is proposed in this paper for supplying power to offshore oil platforms that do not have their own generation. The proposed system combines the robust performance,
Cartwright, P., Andersen, B., Xu, L.
core  

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