Results 51 to 60 of about 1,557,124 (281)

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

CHANGES OF THE NATURAL ELECTRICAL POTENTIAL OF STEEL IN THE STRESS-STRAIN STATE

Известия высших учебных заведений: Нефть и газ, 2015
The experimental investigations of steel samples under the influence of the bending load were conducted. It is demonstrated that in the event of the steel stress-strain state occurrence, its natural electric potential changes.
S. V. Loparev, R. A. Tryastsin, A. A. Volzhakov, V. V. Gostev   +3 more
doaj   +1 more source

Pore types and microstructure of the black shale in the Lower Silurian, Southeast of Chongqing, China

Frontiers in Earth Science, 2023
The Lower Silurian black shale in the Southeast of Chongqing is of great potential in the accumulation of shale gas in South China. In order to understand the pore system of these black shales, mercury porosimetry, surface area study, mineralogy and ...
Juan Li, Juan Li, Yukun Tian, Shan Chen, Shan Chen, Hui Zhou, Hui Zhou, Huanpeng Chi, Huanpeng Chi, Yanyan Ma, Yanyan Ma, Liyun Kong, Liyun Kong   +12 more
doaj   +1 more source

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

Advanced 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, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Hydraulic-Mechanical Coupling-Driven In Situ Stress Field Evolution in Injection-Production Well Patterns With Artificial Fractures

Geofluids
Based on the theory of porous media elasticity and the mechanisms of hydraulic-mechanical coupling, a fully coupled mathematical model for porous media deformation and fluid flow was established, incorporating a square inverted nine-spot well pattern ...
Changkun Cheng, Shiduo Liu, Zhicheng Wang, Qian Xiao, Huan Liu, Ying Fu, Yuhang Zhang, Yan Deng   +7 more
doaj   +1 more source

FEATURES INTERPRETATIONS OF HORIZONTAL OIL WELL BUILD-UP TEST IN OIL AND GAS RESERVOIRS

Известия высших учебных заведений: Нефть и газ, 2015
The article describes the features of well test interpretation in horizontal oil wells in the development of oil and gas reservoirs. The results obtained provided a method of estimating the vertical permeability and the anisotropy coefficient according ...
M. D. Zejnal'-Abidin, S. K. Sohoshko, A. V. Sarancha, N. P. Kocherga   +3 more
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

The legal implications of gas flaring on climate change in Nigeria [PDF]

, 2014
Global atmospheric concentration of substances that trap heat causing warming and change of climate is caused mostly by man’s activities- anthropogenic. Since efforts to curtail anthropogenic climate change commenced and countries came together to agree ...
Oluduro, Olubisi Friday
core   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Atmospheric emissions from the deepwater Horizon spill constrain air-water partitioning, hydrocarbon fate, and leak rate [PDF]

, 2011
The fate of deepwater releases of gas and oil mixtures is initially determined by solubility and volatility of individual hydrocarbon species; these attributes determine partitioning between air and water.
Aikin, KC, Angevine, WM, Atlas, EL, Blake, DR, Brock, CA, De Gouw, JA, Fahey, DW, Fehsenfeld, FC, Gao, RS, Holloway, JS, Lack, DA, Lueb, RA, Meinardi, S, Middlebrook, AM, Murphy, DM, Neuman, JA, Nowak, JB, Parrish, DD, Peischl, J, Perring, AE, Pollack, IB, Ravishankara, AR, Roberts, JM, Ryerson, TB, Schwarz, JP, Spackman, JR, Stark, H, Warneke, C, Watts, LA   +28 more
core   +1 more source