Results 31 to 40 of about 3,974 (207)

Ferromagnetism of Molecular Beam Epitaxy‐grown Ultra‐thin Cr2Ge2Te6 Films Down to the Monolayer Limit on Si Substrates

Advanced Materials, EarlyView.
Uniform monolayer Cr2Ge2Te6 films are achieved on Si substrates by molecular beam epitaxy. Intrinsic ferromagnetism with perpendicular magnetic anisotropy is established in the films by anomalous Hall effect and superconducting quantum interference device measurements, albeit with strong magnetic fluctuations characteristic of its 2D nature.
Pengfei Ji, Ruixuan Liu, Tianchen Zhu, Yang Chen, Yitian Tong, Jinxuan Liang, Yunhe Bai, Yunyi Zang, Zuhan Geng, Fangting Chen, Xiyu Hong, Jiatong Zhang, Luyi Yang, Qi‐Kun Xue, Ke He, Xiao Feng   +15 more
wiley   +1 more source

Beyond Nanoporosity: A CO2‐Conditioned Glassy Matrix Contributes to the Brittle‐to‐Ductile Transition of Nanocellular Polyetherimide

Advanced Materials, EarlyView.
The mechanical performance of nanocellular polyetherimide cannot be explained by nanoporosity alone. It is shown that CO2 saturation and desorption leave a distinct mechanical signature in the glassy matrix before foaming. This matrix contribution provides a new route to understand and optimize the brittle to ductile transition in nanocellular polymers.
Félix Lizalde‐Arroyo, Frederik Van Loock, Victoria Bernardo, Tuuli Peltola, René Bes, Alberto Tena, Miguel Ángel Rodríguez‐Pérez, Judith Martín‐de León   +7 more
wiley   +1 more source

A Review of Gas Flow and Its Mathematical Models in Shale Gas Reservoirs

Geofluids, 2020
The application of horizontal wells with multistage hydraulic fracturing technologies has made the development of shale gas reservoirs become a worldwide economical hotspot in recent years.
Bo-ning Zhang, Xiao-gang Li, Yu-long Zhao, Cheng Chang, Jian Zheng   +4 more
doaj   +1 more source

Deterministic Field‐Free Switching of Perpendicular Magnetization by Bulk Mirror Symmetry Broken Bi1−xSbx (012) with High Spin Hall Conductivity

Advanced Materials, EarlyView.
Crystal orientation and domain engineering enable bulk mirror symmetry breaking in Bi1−xSbx, resulting in ultralow current‐induced switching of perpendicular magnetization without an external field. By exploiting single‐domain Bi1−xSbx (012), the authors demonstrate an out‐of‐plane spin Hall conductivity of ∼1.12×105ℏ2eΩ−1m−1$ \sim \!1.12 \ensuremath ...
Seungwon Rho, Youngmin Lee, Jaeseok Huh, Jaehan Park, Hyeong‐Jun Son, Dowoo Pyeon, Mann‐Ho Cho   +6 more
wiley   +1 more source

Shale Gas Pseudo Two-Dimensional Unsteady Seepage Pressure Simulation Analysis in Capillary Model

Oil & Gas Science and Technology, 2014
Shale gas is rapidly growing as a source of natural gas in China. Compared with the conventional gas reservoir, the shale gas reservoir is characterized by low porosity, low permeability, and adsorbed gas, making the flow mechanism of shale gas reservoir
Fengpeng Lai, Zhiping Li, Zhifeng Li, Zhihao Yang, Yingkun Fu   +4 more
doaj   +1 more source

Bioinspired Multifunctional Flexible C‐SiC Fibrous Aerogel for Superior Electromagnetic Interference Shielding Under Extreme Environments

Advanced Science, EarlyView.
This schematic presents a biomimetic C‐SiC fibrous aerogel inspired by the special structure of momordica charantia. It exhibits outstanding thermal insulation and ultrahigh specific electromagnetic shielding performance, together with excellent high‐temperature stability and mechanical flexibility, showing great promise for aerospace applications ...
Tianyue Yang, Yan Shen, Zhongqian Zhao, Xue Zhou, Qianji Chen, Xujing Wang, Chuchu Zheng, Zhaoxiang Lu, Yangzhong Zhao, Yanzi Gou   +9 more
wiley   +1 more source

Gas-water two-phase apparent permeability for inorganic shale pores considering fractal structure and multiple mechanisms of fluid storage and migration

Meitan kexue jishu
The apparent permeability of gas-water two-phase flow in the inorganic shale pore system of shale is a critical parameter for evaluating shale gas production and the flowback rate of fracturing fluid, and its accurate characterization provides a ...
Rui YANG, Zhe SU, Hongzhou DU, Tianran MA   +3 more
doaj   +1 more source

Diffusion of dilute gas in arrays of randomly distributed, vertically aligned, high-aspect-ratio cylinders

Beilstein Journal of Nanotechnology, 2017
In this work we modelled the diffusive transport of a dilute gas along arrays of randomly distributed, vertically aligned nanocylinders (nanotubes or nanowires) as opposed to gas diffusion in long pores, which is described by the well-known Knudsen ...
Wojciech Szmyt, Carlos Guerra, Ivo Utke
doaj   +1 more source

Micro-mechanism analysis of shale gas migration

工程科学学报, 2018
For shale gas exploitation, it is scientifically essential to clarify the mechanism of gas flow in nanopore media. Shale is a kind of tight rock, whose pore size mainly ranges from several nanometers to dozens of nanometers.
ZHANG Peng-wei, HU Li-ming, WEN Qing-bo
doaj   +1 more source

Research Progress on Diffusion Behavior and Carbon-isotope Fractionation Models of Deep Natural Gas

Taiyuan Ligong Daxue xuebao, 2023
Purposes In China, the exploration and development of deep oil and gas resources have gained significant attention in recent years. In order to meet the demands of development, many scholars have conducted research on the process of deep natural gas ...
Haiyu DONG, Yu ZOU, Guojian WANG, Dongna LIU, Rui ZHOU   +4 more
doaj   +1 more source