Results 31 to 40 of about 6,141,379 (239)

Methane production and colon cancer

Gastroenterology, 1984
The cause of the high incidence of methane producers in patients with colorectal cancer is not clear. A total of 270 individuals were studied for methane production, using an end-expiratory breath sampling technique. They were divided into eight groups: 156 healthy controls (group 1); 47 patients with colorectal cancer (group 2); 36 patients (34 of ...
J M, Piqué, M, Pallarés, E, Cusó, J, Vilar-Bonet, M A, Gassull   +4 more
openaire   +2 more sources

Lithology identification of shale gas reservoirs using multi-source intelligent learning algorithms

Discover Applied Sciences
Lithology classification of shale gas reservoirs is pivotal for oil and gas exploration and development, as it directly dictates the reliability of reservoir evaluation, fracturing design, and productivity prediction.
Ming Chen, Longfei Sun, Li Hao, Wei Xiong, Lin Yang, Liwei Cui   +5 more
doaj   +1 more source

Investigation into hydraulic fracture propagation behavior during temporary plugging and diverting fracturing in deep coal seam

Frontiers in Energy Research
In this study, we conducted indoor temporary plugging and diverting fracturing (TPDF) experiments on samples of natural deep and shallow coal seams using a small-scale true triaxial fracturing simulation system.
Sun Zening, Sun Zening, Tan Zhanglong, Tan Zhanglong, Lin Junwen, Lin Junwen, An Qi, An Qi, Zou Yushi, Liu Shikang, Zhao Ziwen   +10 more
doaj   +1 more source

Microwave Pretreatments of Switchgrass Leaf and Stem Fractions to Increase Methane Production

BioResources, 2015
The objective of this study was to determine the effectiveness of microwave pretreatments on methane production from two switchgrass tissues (leaf vs. stem).
Chunhui Wu, He Zhou, Fuyu Yang, Yunwei Zhang, Fengqin Gao   +4 more
doaj   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

Advanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang, Chao Hsuan (Joseph) Sung, Haitao Yu, Ezra Sarmiento, Katarina Kotanchek, Ryan Christopher Lee, Michelle Chan, David Kisailus   +7 more
wiley   +1 more source

Physics‐Grounded Materials Artificial Intelligence for Reliable Materials Discovery

Advanced Functional Materials, EarlyView.
Physics‐Grounded Materials AI (PhysMat AI) integrates physical priors, descriptors, constraints, verification, and data infrastructure into a unified full‐stack framework, enabling reliable, interpretable, and autonomous AI‐driven materials discovery.
Yuhang Wang, Qian Wang, Seong‐Hoon Jang, Hao Li   +3 more
wiley   +1 more source

Research on Digital Core Reconstruction of Tight Sandstone Based on Deep Learning

Applied Sciences
Three-dimensional digital core reconstruction methods based on deep learning have emerged as a promising approach to address the limitations of traditional physics experiment-based and numerical computation-based methods.
Hongquan Ji, Mingming Tang, Bing Zhang, Yunan Liang, Chao Wei, Litao Ma, Cheng Liu, Yuhan Li   +7 more
doaj   +1 more source