Results 31 to 40 of about 109,234 (184)

Ultrasonic phased array flexible coupling detection of defects in high-voltage cable terminal lead seals

Frontiers in Mechanical Engineering
High-voltage cable terminal lead seals may develop defects such as holes, cracks, or delamination due to substandard installation quality or external forces during operation.
Peng Ziping, Zheng Jishi, Zhen Zhiming, Huang Yaosheng, Li Xiaobin, Cai Qiushen   +5 more
doaj   +1 more source

Monitoring Fatigue Damage of Modular Bridge Expansion Joints Using Piezoceramic Transducers

Sensors, 2018
Modular bridge expansion joints (MBEJs) are commonly used in bridges and are often subjected to fatigue damages, which necessitate fatigue monitoring of MBEJs to ensure the reliable operation of the bridges.
Tianyong Jiang, Yaowen Zhang, Lei Wang, Liang Zhang, Gangbing Song   +4 more
doaj   +1 more source

Analysis on the Leakage and Rubbing Force of the Combined Finger Seal Based on Equivalent Dynamic Model Considering Thermal Effects

Applied Mechanics
This study proposes a combined finger seal configuration composed of different structural laminates. An equivalent dynamic model of the finger seal system, accounting for thermal effects, is established.
Jifan Zhang, Hua Su, Yiting Su, Kun Zhou
doaj   +1 more source

Root perforations: a review of diagnosis, prognosis and materials

Brazilian Oral Research, 2018
: Root perforation results in the communication between root canal walls and periodontal space (external tooth surface). It is commonly caused by an operative procedural accident or pathological alteration (such as extensive dental caries, and external ...
Carlos Estrela, Daniel de Almeida Decurcio, Giampiero Rossi-Fedele, Julio Almeida Silva, Orlando Aguirre Guedes, Álvaro Henrique Borges   +5 more
doaj   +1 more source

Performance of 18-Story Steel Momentframe Buildings during a large San Andreas Earthquake - A Southern California-Wide End-to-End Simulation [PDF]

, 2005
The mitigation of seismic risk in urban areas in the United States and abroad is of major concern for all governments. Unfortunately no comprehensive studies have attempted to address this issue in a rigorous, quantitative manner.
Ji, Chen, Komatitsch, Dimitri, Krishnan, Swaminathan, Tromp, Jeroen   +3 more
core  

Momentum-resolved resonant inelastic soft X-ray scattering (qRIXS) endstation at the ALS [PDF]

, 2019
A momentum resolved resonant inelastic X-ray scattering (qRIXS) experimental station with continuously rotatable spectrometers and parallel detection is designed to operate at different beamlines at synchrotron and free electron laser (FEL) facilities ...
Brown, Adam,, Chen, Yu Jen,, Chuang, Yi De,, Cruz, Alejandro,, Devereaux, Thomas P.,, Duarte, Robert,, Feng, Xuefei,, Frano, Alex,, Gullikson, E.,, Guo, Jinghua,, Hanzel, Kelly,, Huang, Shih Wen,, Hussain, Zahid,, Kim, Jaemyung,, Lee, Wei Sheng,, Lund University., Pepper, John S.,, Shao, Yu Cheng,, Shen, Zhi Xun,, Smith, Brian,, Spucces, Adrian,, Tremsin, Anton, Wray, L. Andrew,, Yang, Wanli,   +23 more
core   +2 more sources

Cone beam tomographic study of facial structures characteristics at rest and wide smile, and their correlation with the facial types

Dental Press Journal of Orthodontics, 2013
OBJECTIVE: To determine the characteristics of facial soft tissues at rest and wide smile, and their possible relation to the facial type. METHODS: We analyzed a sample of forty-eight young female adults, aged between 10, 19 and 40 years old, with a mean
Luciana Flaquer Martins, Julio Wilson Vigorito   +1 more
doaj   +1 more source

Modified Periosteal Inhibition (MPI) Technique for Extraction Sockets: A Case Series Report

Applied Sciences, 2022
Several Alveolar Ridge Preservation (ARP) procedures have been proposed over the years. The purpose of this study was to describe the new Modified Periosteal Inhibition (MPI) technique for ARP.
Andrea Grassi, Lucia Memè, Enrico M. Strappa, Emanuele Martini, Fabrizio Bambini   +4 more
doaj   +1 more source

Dynamic pore-scale reservoir-condition imaging of reaction in carbonates using synchrotron fast tomography [PDF]

, 2015
Synchrotron fast tomography was used to dynamically image dissolution of limestone in the presence of CO2-saturated brine at reservoir conditions. 100 scans were taken at a 6.1 µm resolution over a period of 2 hours.
Andrew, MG, Bijlejic, B, Blunt, MJ, Menke, HP   +3 more
core   +1 more source

Fabrication of Miniature Titanium Capsule for Brachytherapy Sources Using Tungsten Inert Gas (TIG) Method [PDF]

مجله علوم و فنون هسته‌ای, 2013
The capsules containing radioactive materials as brachytherapy sources are used for implanting into some target organs for malignant disorders treatments, such as prostate, eyes, and brain cancers. The conventional method for sealing the tubes is to weld
R Naghdi, Sh Sheibani, M Tamizifar
doaj