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The Stability of Gob-Side Entry Retaining in a High-Gas-Risk Mine

University of Mining and Technology (Beijing), Beijing 100083, China Correspondence should be addressed to Junwen Zhang; moc.361@7791newnujgnahz Received 28 August 2018; Accepted 19 December 2018; Published ... 13 January 2019 Guest Editor: Dengke Wang Copyright © 2019 Junwen Zhang and Yulin Li. This is an open access article distributed under the Creative Commons Attribution License, which permits

Investigation of Relation between Fracture Scale and Acoustic Emission Time-Frequency Parameters in Rocks

Technology (Beijing), Beijing 100083, China Correspondence should be addressed to Junwen Zhang; moc.361@7791newnujgnahz Received 27 October 2017; Accepted 31 January 2018; Published 19 March 2018 Academic ... Editor: Longjun Dong Copyright © 2018 Junwen Zhang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

Investigation of Relation between Fracture Scale and Acoustic Emission Time-Frequency Parameters in Rocks

Technology (Beijing), Beijing 100083, China Correspondence should be addressed to Junwen Zhang; moc.361@7791newnujgnahz Received 27 October 2017; Accepted 31 January 2018; Published 19 March 2018 Academic ... Editor: Longjun Dong Copyright © 2018 Junwen Zhang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and

Accident Analysis in Relation to Main Roof Structure When Longwall Face Advances toward a Roadway: A Case Study

Practices show that hydraulic supports crushing accidents or roadway supports failure often take place when a longwall face advances toward an abandoned roadway or a predriven equipment recovery room. Therefore, a 2D similar simulation experiment is conducted to reveal the loading mechanism. The result shows that when the workface advances close to roadways, the main roof breaks...

Experimental Study on Mechanical and Acoustic Emission Characteristics of Rock Samples under Different Stress Paths

University, Shenyang 110819, China 3College of Resource and Safety Engineering, China University of Mining and Technology, Beijing, China Correspondence should be addressed to Junwen Zhang; moc.361

Experimental Study on Mechanical and Acoustic Emission Characteristics of Rock Samples under Different Stress Paths

University, Shenyang 110819, China 3College of Resource and Safety Engineering, China University of Mining and Technology, Beijing, China Correspondence should be addressed to Junwen Zhang; moc.361

Maximization of Visible Light Communication Capacity Employing Quasi-Linear Preequalization with Peak Power Limitation

We propose quasi-linear preequalization to be used for high speed visible light communication (VLC) system. Compared with zero-forcing preequalization, this kind of preequalization method is more suitable for a real VLC experimental system with peak power limitation. We carry out simulations and experiments to test the performance of quasi-linear preequalization. With this...

Identification and Expression Analysis of a Novel HbCIPK2-Interacting Ferredoxin from Halophyte H. brevisubulatum

Ferredoxin is a small iron-sulfer protein involved in various one-eletron transfer pathways. Little is known about how ferredoxin is regulated to distribute electron under abiotic stress. Our previous study has showed that HbCIPK2 conferred salinity and drought tolerance. Thus, we hypothesized that HbCIPK2 could mediate the activities of interacting partners as a signal...

Congenital quadricuspid aortic valve associated with aortic insufficiency and mitral regurgitation

Jiaquan Zhu 0 Junwen Zhang 0 Shubin Wu Yunjiao Zhang Fangbao Ding Ju Mei 0 Equal contributors Cardiovascular Surgery Division, Cardiac Center, Xinhua Hospital, School of Medicine, Shanghai Jiaotong

Congenital quadricuspid aortic valve associated with aortic insufficiency and mitral regurgitation

Editor-in-Chief of this journal. Notes Jiaquan Zhu, Junwen Zhang contributed equally to this work. Abbreviations QAV:  Quadricuspid aortic valve LVEDD:  Left ventricle end-diastolic diameter

Hepatic injury in a rat cardiopulmonary bypass model

An increasing number of patients were undergoing cardiac surgery with cardiopulmonary bypass (CPB) and more attention had been paid to hepatic injury after CPB. This study was designed to study how CPB could induce and aggravate the hepatic injury in a rat model. Male Sprague-Dawley rats were randomly divided into two groups (n=12): sham and CPB groups. Blood samples were...