Results 31 to 40 of about 660,505 (314)

Study on Mechanical Characteristics of Deformation and the Failure of Gas-Containing Coal in the Wuhai Mining Area of China under Different Gas Pressure Conditions

Applied Sciences, 2022
The mechanical properties of gas-containing coal and rock mass play important roles in controlling the occurrence and development of coal and gas outbursts. The gradual increase in mining depth will change the failure mechanism of gas-containing coal and
Yejiao Liu, Hui Xing, Zeyu Duan, Chaoyun Yu, Zhichao Tian, Ting Teng   +5 more
doaj   +1 more source

GAS LIFTING FOR PRODUCTION OPTIMIZATION USING EXTRA-HIGH-PRESSURE (XHP) GAS FROM NATURAL GAS WELLS WITHOUT COMPRESSION [PDF]

, 2023
Artificial lift techniques are used when reservoir pressure drops below the fluid hydrostatic column weight in the well. A compressor station supplies high-pressure gas for the gas lift system, which includes a gas distribution manifold, gas lift lines ...
Ofesi Felix Samuel, Okologume Chinedu Wilfred, Morenikeji Benjamin Adediran   +2 more
core   +1 more source

Prediction of pressure drop in multiphase horizontal pipe flow [PDF]

, 2006
Empirical correlations were tested against reliable two phase pipe flow data for the prediction of pressure drop. Correlations are recommended for the prediction with stratified and annular type flows.
Spedding, P. L., Bénard, Emmanuel, Donnelly, G. F.   +2 more
core   +1 more source

Evaluation of seismic resistance capacity on pipe braced supporting frame of spherical tank by shaking experiment

Nihon Kikai Gakkai ronbunshu, 2015
Significant fire and explosion accident on spherical tanks for Liquefied Petroleum Gas (LPG) storage was induced by the strong ground motion of the 2011 Great East Japan Earthquake.
Takashi OHNO, Nobuyuki KOBAYASHI, Osamu FURUYA, Kenji OYAMADA   +3 more
doaj   +1 more source

Study on the mechanical response characteristics of sandstone under elasticity plasticity and full path unloading after peak stress

Scientific Reports
When underground tunnels in coal mines traverse geological structurally abnormal zones (faults, collapse columns, fractured zones, etc.), excavation-induced unloading leads to instability and failure of the engineering rock mass. Rock masses in fractured
Gang Liu, Yao Zeng, Dongwei Wang, Shengxuan Wang, Yonglong Zan, Guoqing Wei   +5 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Jacking resistance in collapsed body considering buckling of force chain

Meitan xuebao
In order to establish an effective and secure emergency rescue channel within a collapsed structure using the pipe jacking method, understanding the evolution mechanism of jacking resistance is crucial.
Fukun XIAO, Kai XIE, Zhiwei LAO, Lei SHAN, Gang LIU, Chuanbo HAO   +5 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

Molecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni, Antonella Palmese, Stefano Scalera, Laura Cipriani, Davide Mascolo, Patrizia Vici, Teresa Arcuri, Lorena Filomeno, Eriseld Krasniqi, Giovanni Blandino, Giulia Bon, Marcello Maugeri‐Saccà   +11 more
wiley   +1 more source

Influence of pipe jacking burial depth and caving body particle size on mechanical properties of pipe jacking

Meikuang Anquan
The pipe jacking rescue method is to form an emergency life passage safely and efficiently by jacking a prefabricated pipe through the caving and collapse blockage area.
Fukun XIAO, Zhiwei LAO, Kai XIE, Lingxue KONG, Chuanbo HAO   +4 more
doaj   +1 more source