Results 131 to 140 of about 275,172 (274)

Numerical Simulation and Experimental Study of the Pneumo-Electric Hybrid-Driven Pipeline Inspection Robot in Low-Pressure Gas Pipeline

Journal of Marine Science and Engineering
Intelligent pipeline inspection is necessary to operate submarine pipelines safely. At present, speed excursion and blockage are the challenges in the inspection of low-pressure gas pipelines.
Yuming Su, Lijian Yang, Hao Geng, Ping Huang, Fuyin Zheng, Wenxue Zheng, Pengfei Gao   +6 more
doaj   +1 more source

Deliverability and regional pricing in U.S. natural gas markets [PDF]

During the 1980s and early '90s, interstate natural gas markets in the United States made a transition away from the regulation that characterized the previous three decades.
Mine K. Yucel, Stephen P.A. Brown
core  

Ammonia Gas Sensor Fabricated by Multifunctional ZnO/GO Nanocomposites for Long‐Term, Self‐Powered Monitoring

Advanced Science, EarlyView.
Zinc oxide/graphene oxide (ZnO/GO) nanocomposites serve as a gas‐sensitive film for ammonia sensing and as high‐performance electrode materials in supercapacitors, simultaneously. A wearable contact‐separated triboelectric nanogenerator is designed to directly drive the ZnO/GO nanocomposites‐based ammonia sensor.
Xingwei Wang, Likun Gong, Xiaohong Zhou
wiley   +1 more source

Intelligent identification of natural gas pipeline defects based on improved pollination algorithm. [PDF]

PLoS One, 2023
Gao Y, Luo Z, Wanng Y, Luo J, Wang Q, Wang X, Bi A.   +6 more
europepmc   +1 more source

Cryo‐EM Structures Reveal the Molecular Basis of Asymmetric Allosteric Activation by MMOB in the Hydroxylase of Soluble Methane Monooxygenase

Advanced Science, EarlyView.
Cryo‐EM analysis reveals an asymmetric MMOH–MMOB complex with distinct protomers, where MMOB binding triggers structural rearrangements from the surface to the active site. This conformational asymmetry shortens the Fe···Fe distance to 2.7 Å in one protomer, forming a geometry suitable for O2 activation and supporting a sequential catalytic mechanism ...
Yunha Hwang, Bumhan Ryu, Soyeon Park, Dong‐Heon Lee, Hyo Jin Hong, Jeong‐Geol Na, Chul Gyu Song, Hyun Goo Kang, Edwin Pozharski, Seung Jae Lee   +9 more
wiley   +1 more source

Modeling the Crack Interference in X80 Oil and Gas Pipeline Weld. [PDF]

Materials (Basel), 2023
Cui W, Xiao Z, Zhang Q, Yang J, Feng Z.
europepmc   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

Advanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan, Yubo Zhang, Jingjing Li, Jianqing Zhu, Yuyang Lei, Yushi Hu, Zhenqiang Xin, Tianpei Xie, Jiang Zheng, Yuanyuan Lin, Jingjing Shen, Yiyi Cao, Xinyue You, Jing Xi, Jiaying Wu, Weiying Liu, Xinyu Zhang, Yuanting Zheng, David J. Lohman, Leming Shi, Wei Zhang   +20 more
wiley   +1 more source

Development of the automated temperature control system of the main gas pipeline. [PDF]

Sci Rep, 2023
Fetisov V, Ilyushin YV, Vasiliev GG, Leonovich IA, Müller J, Riazi M, Riazi M, Mohammadi AH.   +7 more
europepmc   +1 more source

Energy Security in the EU and Beyond [PDF]

Past episodes of energy insecurity have been fleeting and the fears have been assuaged by market forces or technical change. This paper analyses the nature of the EU's current energy security problems, emphasising the increased importance of natural gas ...
Richard Pomfret
core  

Naked‐Eye Visual Warning of ppmv‐Level Fault‐Free Humidity Upper Limit

Advanced Science, EarlyView.
In this study, based on the urgent need in many critical fields for ppmv‐level fault‐free humidity upper limit (ppmv‐FFHUL) monitoring, an innovative threshold gated humidity sensing technology was developed. It exhibits superior portability (as thin and light as paper) and highly economic feature (without auxiliary instruments at all), and can achieve
Xiaoyan Wei, Tianyou Qin, Siyu Wang, Sean Xiao‐An Zhang, Lan Sheng   +4 more
wiley   +1 more source