Results 31 to 40 of about 136,737 (294)

The potential of cardioscreening in oil and gas refinery [PDF]

open access: yesCardi-IT, 2020
Aim: to compare the results of examination conducted among oil and gas refinery employees, obtained during yearly periodic medical examination with the results obtained during cardioscreening. Material and Methods – 47 employees (64% - men, mean age 52 ± 8 yrs) of large oil and gas refinery were examined by cardiologist in 2018.
Margarita A. Simonyan   +4 more
openaire   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

“Exploring petroleum inside source kitchen”: Connotation and prospects of source rock oil and gas

open access: yesPetroleum Exploration and Development, 2019
Based on the transitional background of the global energy structure, exploration and development of unconventional oil and gas, and investigation of key basins, the unconventional oil and gas resources are divided into three types: source rock oil and ...
Zhi YANG, Caineng ZOU
doaj   +1 more source

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

open access: yesAdvanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof   +9 more
wiley   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

INTEGRATION OF EDUCATION, SCIENCE, AND BUSINESS: CURRENT INSTITUTIONAL SOLUTIONS

open access: yesВысшее образование в России, 2018
The article discusses the problem of a lack of a national-level institutional solution to the problem of integration of education, science and business in Russia.
V. S. SHEINBAUM, O. V. BUDZINSKAYA
doaj  

Unconventional hydrocarbon resources in China and the prospect of exploration and development

open access: yesPetroleum Exploration and Development, 2012
Based on analysis of the characteristics of unconventional hydrocarbon resources, this paper assesses the potential for unconventional hydrocarbons in China, summarizes the key technical progress in exploration and development, and discusses the ...
Chengzao JIA, Min ZHENG, Yongfeng ZHANG
doaj   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

open access: yesAdvanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing   +9 more
wiley   +1 more source

Accumulation process and potential of Jurassic tight sandstone oil and gas in Eastern Yangxia sag of Kuqa Depression

open access: yesChina Geology
: The Jurassic tight sandstone oil and gas exploration and development in the eastern Yangxia Sag is a new field. To elucidate the origin, accumulation process and potential of tight oil and gas, the authors have conducted comprehensive analyses ...
Cai-yuan Dong   +5 more
doaj   +1 more source

Prospects of oil-and-gas-bearing capacity of Ukraine at great depths for the expansion of hydrocarbon potential of Ukraine

open access: yesМінеральні ресурси України, 2020
Energy independence is an important component of sustainable development and security of the state. Ukraine has a great hydrocarbon potential of the subsoil, which is why the priority objective is a search and exploration of new deposits of hydrocarbon ...
H. I. Rudko, V. V. Sobol
doaj   +1 more source

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