Results 111 to 120 of about 2,318,055 (330)

Semi-analytical productivity calculation and sensitive factors for the multi-stage fractured horizontal well in low permeability reservoirs

Youqicang pingjia yu kaifa, 2018
A low permeability reservoirs usually have threshold pressure gradient with extremely low permeability. The seepage mechanism of multi-stage fractured horizontal wells are complex and the productivity are affected by many factors.
Li Yongming, Zhou Wenwu, Zhao Jinzhou, Zhang Lingling   +3 more
doaj  

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Kaiser acoustic emission ground stress testing study on shale oil reservoir in Y block of Ordos basin, China

Scientific Reports
The determination of rock mechanics parameters and in-situ stress during the development process of “horizontal well + volume fracturing” for shale oil reservoirs in Block Y of the Ordos Basin can provide a basis for fracturing schemes and production ...
Jinyuan Zhang, Junbin Chen, Junjie Lei, Jiao Xiong, Xiangrong Nie, Diguang Gong, Pengzhan Ning, Ruidong Shi   +7 more
doaj   +1 more source

Design and Analysis of Compression–Torsion Coupling Metamaterials Using the Golden Section Method

Advanced Engineering Materials, EarlyView.
A novel compression–torsion metamaterial is engineered using inclined rods and symmetry breaking. To optimize its torsional performance, the golden section method is employed. The mechanical response of the metamaterial is validated through both numerical analysis and experimental validation.
Amirhossein Hassani, Sara Bagherifard
wiley   +1 more source

ANALISIS GRADIENT HORIZONTAL (GRAVITI) UNTUK KONFIRMASI AWAL SESAR PERMUKAAN DI TAPAK BANTEN

, 2011
ABSTRAKANALISIS GRADIENT HORIZONTAL (GRAVITI) UNTUK KONFIRMASI AWAL SESAR PERMUKAAN DI TAPAK POTENSIAL, BANTEN. Telah dilakukan pengukuran gaya berat di sekitar tapak potensial Banten untuk Pembangkit Listrik Tenaga Nuklir (PLTN) yang teridentifikasi ...
Suntoko, Hadi, Nugroho, Ari
core   +1 more source

Variable methods to estimate the ionospheric horizontal gradient

IOP Conference Series: Earth and Environmental Science, 2016
DGPS or differential Global Positioning System is a system where the range error at a reference station (after eliminating the error due to its' clock, hardware delay and multipath) will be eliminated from the range measurement at the user, which view the same satellite, presuming that the satellites path to both the reference station and the user ...
openaire   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Statistics of gradient directions in natural images.

, 2007
Interest in finding statistical regularities in natural images has been growing since the advent of information theory and the advancement of the efficient coding hypothesis that the human visual system is optimised to encode natural visual stimuli.
Nasrallah, A.J., Nasrallah, Alexandre James   +1 more
core  

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source

Research Progress and Problems of Soil Seepage Deformation Evaluation

Renmin Zhujiang
In order to improve the evaluation standard of seepage deformation, the problems existing in the evaluation standard of seepage deformation in the current codes and the latest research results were analyzed.
ZHANG Yi, WANG Junzhi
doaj   +2 more sources