Results 41 to 50 of about 20,734 (265)

Influence of Slippage Effect on the Low Temperature Permeability of Coal Rock Under the Action of Heat Flow Solid Coupling

Taiyuan Ligong Daxue xuebao
Purposes Increasing the permeability of coal reservoirs is a key technology to improve the recovery rate of coalbed methane, and in-situ thermal injection mining is an effective method to enhance coalbed methane production.
Ming LI, Qiaorong MENG, Jialong XIN, Runhua ZHANG, Yajun LI, Feng LIN, Tao CHEN   +6 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

Advanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba, Sang‐Hyeok Lee, Christina Gasper, Martina Freund, Sandra Korte‐Kerzel, Ulrich Kerzel   +5 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

EFFECT OF TWO PULVERIZATION SEASONS WITH TWO TYPES OF PULVERIZATION EQUIPMENT ON THE PERCENT OF ANNUAL WEED CONTROL AND SOME PHYSICAL PROPERTIES OF SOIL [PDF]

Mesopotamia Journal of Agriculture, 2009
This research was included the effect of two seasons. winter and spring with two types of harrows. offset disk harrow and spring harrow on the percent of annual weed control. soil moisture content. bulk density. number of soil aggregates greater than 5cm/
Rafea Al-Jawady, Muthana Al-Jaraa
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Study on permeability mechanism of rough fractured coal considering slippage effect

Meitan kexue jishu
In order to explore the influence of the surface roughness of coal fractures on the permeability characteristics of coal, coal samples from Liupanshui area of Guizhou Province were selected, and the pore structure of coal was characterized by scanning ...
Xingyi ZENG, Bobo LI, Jianhua LI, Shulei DUAN, Yunna DING, Junsong YANG   +5 more
doaj   +1 more source

Lattice Boltzmann Model for Gas Flow through Tight Porous Media with Multiple Mechanisms

Entropy, 2019
In the development of tight gas reservoirs, gas flow through porous media usually takes place deep underground with multiple mechanisms, including gas slippage and stress sensitivity of permeability and porosity.
Junjie Ren, Qiao Zheng, Ping Guo, Chunlan Zhao   +3 more
doaj   +1 more source

Breakdown of classical bunch length and energy spread formula in a quasi-isochronous electron storage ring

Physical Review Accelerators and Beams, 2023
Originating from the stochastic nature of the photon emission process, the longitudinal coordinates of electrons diffuse even if the global phase slippage of a storage ring is zero, as we cannot zero all the local phase slippages simultaneously.
X. J. Deng, A. W. Chao, J. Feikes, A. Hoehl, W. H. Huang, R. Klein, A. Kruschinski, J. Li, M. Ries, C. X. Tang   +9 more
doaj   +1 more source