Results 1 to 10 of about 2,040,957 (330)

The human gut serves as a reservoir of hypervirulent Klebsiella pneumoniae

Gut Microbes, 2022
Hypervirulent Klebsiella pneumoniae (hvKp) can cause serious infections and has been increasingly reported clinically. However, we still lack the knowledge to what degree hvKp colonize the community. In this study, we investigated colonization of hvKp in
Jing Yang, Yi Li, Na Tang, Juan Li, Juan Zhou, Shan Lu, Gui Zhang, Yuqin Song, Chao Wang, Jin Zhong, Jianguo Xu, Jie Feng   +11 more
doaj   +2 more sources

Evaluation of movable tight oil in different reservoir types in the Central Sichuan region [PDF]

Scientific Reports
Tight oil is abundant in the Central Sichuan area. Understanding the differences in tight oil movability among different types of formations is important for the development of tight oil reservoirs in Central Sichuan.
Haoqi Liao, Jinchuan Wu, Zhouhua Wang, Huang Liu, Ping Guo, Hanmin Tu, Xiuqing Li   +6 more
doaj   +2 more sources

3D Multiclass Digital Core Models via microCT, SEM-EDS and Deep Learning [PDF]

E3S Web of Conferences, 2023
We describe an integrated methodology for constructing a 3D multiclass model of a rock sample, based on X-ray microtomography (microCT) and quantitative evaluation of minerals (QEMSCAN) by automated SEM-EDS (Scanning Electron Microscopy, Energy ...
Varfolomeev Igor, Svinin Vladimir, Yakimchuk Ivan   +2 more
doaj   +1 more source

Next generation reservoir computing [PDF]

Nature Communications, 2021
Reservoir computing is a best-in-class machine learning algorithm for processing information generated by dynamical systems using observed time-series data.
D. Gauthier, E. Bollt, Aaron Griffith, W. A. Barbosa   +3 more
semanticscholar   +1 more source

Comparing Centrifuge, Steady-State and Semi-Dynamic Methods for Relative Permeability and Capillary Pressure Determination: New Insights [PDF]

E3S Web of Conferences, 2023
Relative permeability and capillary pressure are essential parameters for understanding multiphase flow in porous media and scenarios of production in oil or gas reservoirs. There are several experimental methods for determining the relative permeability
Pairoys Fabrice, Caubit Cyril, Alexander Micah, Ramos Javier   +3 more
doaj   +1 more source

Reservoir geomechanics

Developments in Petroleum Science, 2021
fundamentals of rock properties, this guide covers critical field and lab tests, along with interpretations from actual drilling operations and worldwide case studies, including abnormal formation pressures from many major petroleum basins.
E. Fjær, R. Holt, P. Horsrud, A. Raaen, R. Risnes   +4 more
semanticscholar   +1 more source

All-ferroelectric implementation of reservoir computing

Nature Communications, 2023
Reservoir computing (RC) offers efficient temporal information processing with low training cost. All-ferroelectric implementation of RC is appealing because it can fully exploit the merits of ferroelectric memristors (e.g., good controllability ...
Zhiwei Chen, Wenjie Li, Zhifang Fan, Shuai Dong, Yihong Chen, M. Qin, M. Zeng, Xubing Lu, G. Zhou, Xingsen Gao, Jun-Ming Liu   +10 more
semanticscholar   +1 more source

A memristor-based analogue reservoir computing system for real-time and power-efficient signal processing

Nature Electronics, 2022
Reservoir computing offers a powerful neuromorphic computing architecture for spatiotemporal signal processing. To boost the power efficiency of the hardware implementations of reservoir computing systems, analogue devices and components—including ...
Yanan Zhong, Jianshi Tang, Xinyi Li, Xiangpeng Liang, Zhengwu Liu, Yijun Li, Yue Xi, P. Yao, Zhenqi Hao, B. Gao, H. Qian, Huaqiang Wu   +11 more
semanticscholar   +1 more source

Pore Preservation and Failure Mechanism of Sinian Dengying Formation Carbonate Reservoirs: A Case Study of Two Ultradeep Wells in the Sichuan Basin, Western China

Geofluids, 2021
Despite being one of the most important factors in deep oil and gas exploration, the preservation mechanisms of ultradeep carbonate reservoirs remain poorly understood.
Zeqi Li, Wei Sun, Shugen Liu, Zhiwu Li, Bin Deng, Juan Wu, Yi Ding, Kun Jiao, Xin Jin, Pengda Lu, Tengzhen Tian   +10 more
doaj   +1 more source

A Powerful Prediction Framework of Fracture Parameters for Hydraulic Fracturing Incorporating eXtreme Gradient Boosting and Bayesian Optimization

Energies, 2023
In the last decade, low-quality unconventional oil and gas resources have become the primary source for domestic oil and gas storage and production, and hydraulic fracturing has become a crucial method for modifying unconventional reservoirs.
Zhe Liu, Qun Lei, Dingwei Weng, Lifeng Yang, Xin Wang, Zhen Wang, Meng Fan, Jiulong Wang   +7 more
doaj   +1 more source