Results 121 to 130 of about 9,082,756 (299)

Evolution characteristics of stress field during crosscut tunneling in soft coal seams and prevention and control technologies for gas dynamic disasters

Meikuang Anquan
Aiming at the on-site technical problems that coal mining of uncovering coal in crosscut under complex geological conditions is prone to cause coal and gas outburst disasters, the disaster-causing mechanism analysis method is adopted to comprehensively ...
Jiang WANG, Jianguo WU, Mingqiang WANG, Lianhe GUAN, Xiong XIAO, Xu YU, Cheng ZHAI   +6 more
doaj   +1 more source

Morphological and Kinematic Diagnostic of FU Orionis-type Outburst Mechanisms

The Astrophysical Journal
Abstract We investigated the possibility of determining the mechanism of FU Orionis-type outbursts based on molecular line observations of protoplanetary disks with synthetic observations of distinct numerical burst models.
Jinshi Sai, Eduard I. Vorobyov, Alexandr Skliarevskii, Michihiro Takami   +3 more
openaire   +3 more sources

Unveiling the Microvasculature: The Index of Microcirculatory Resistance and Its Expanding Role in Cardiovascular Care

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Index of microcirculatory resistance (IMR) is a cutting‐edge, wire‐based tool that advances the capability assessment of coronary microvascular function. By utilizing distal coronary pressure and mean transit time under maximal hyperemia, IMR delivers consistent, reproducible insights into the microvasculature's dynamic health.
Joanna Sohn, Matthew A. Soderstrom, Ariana Ramirez, John‐Henry Dean, Raj Shah, Debanshu Roy, Kenneth Stone, Ariel Vinas, Bryan Ramsey, Charles Lin, Robert Chilton   +10 more
wiley   +1 more source

Nine‐Year Follow‐Up After M‐TEER for Secondary Mitral Regurgitation in a Patient With Cardiogenic Shock

Catheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Background Transcatheter edge‐to‐edge repair (TEER) has become an established therapeutic option for patients with severe secondary mitral regurgitation (SMR). While randomized trials and registry data have reported outcomes up to 5 years, longer follow‐up data remain scarce.
Tobias Reithmayer, Thomas J. Stocker, Ludwig T. Weckbach, Julia Novotny, Philipp M. Doldi, Hannah Kempton, Steffen Massberg, Michael Näbauer, Jörg Hausleiter, Lukas Stolz   +9 more
wiley   +1 more source

From Metabolic Crisis to Molecular Classification: Multidisciplinary Management of Synchronous Endometrioid Ovarian and Endometrial Carcinomas With Massive Tumor Burden

Cancer Nexus, EarlyView.
Managing massive tumor burden in synchronous endometrioid carcinomas. The graphical abstract summarizes the clinical pathway from presentation with massive ascites, pleural effusion, and critical metabolic abnormalities to multidisciplinary stabilization, surgical management, integrated morphologic–molecular classification, and shared decision‐making ...
Anna Homeniuk, Leena Abdalla, Sharon Fitzgerald   +2 more
wiley   +1 more source

Quantitative Detection of Entotic Cell‐In‐Cell Structures Using Deformable Segmentation and Deep Learning

Cytometry Part A, EarlyView.
ABSTRACT Cell‐in‐cell (CIC) structures are among the most intriguing cellular phenomena occasionally observed in human cancer specimens. Once regarded as incidental findings, accumulating evidence has linked specific CIC subtypes, particularly entosis, to tumor progression and patient prognosis.
Maria V. Leyba‐Mesa, Mikołaj Biegański, Elijah Ray, Izabela Młynarczuk‐Bialy, Buket D. Barkana   +4 more
wiley   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Evolution process and instability mechanism of coal and gas outburst induced by rock cross-cut coal uncovering

Meitan kexue jishu
Coal and gas outburst (referred to as outburst) is a complex dynamic disaster phenomenon in the process of coal mining, which seriously threatens the safety production of mines, and the average intensity of coal outburst induced by rock cross-cut coal ...
Chaolin ZHANG, Qiaozhen JIANG, Yong KANG, Yuexia CHEN, Enyuan WANG, Enlai ZHAO, Quanlin LIU   +6 more
doaj   +1 more source

Dynamic cracking properties and generating conditions of coal under rapid gas release

Deep Underground Science and Engineering, EarlyView.
Gas release tests revealed that crack initiation and propagation are jointly controlled by initial crack length, residual strength, and gas release velocity. A new outburst risk coefficient was thus developed from a fracture mechanics perspective, offering a novel predictive approach.
Bing Zhang, Hanpeng Wang, Liang Yuan, Guofeng Yu, Wei Wang, Benliang Chen, Bo Ren   +6 more
wiley   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source