Results 221 to 230 of about 465,669 (314)

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, EarlyView.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +1 more source

Strain Sensor-Based Fatigue Prediction for Hydraulic Turbine Governor Servomotor in Complementary Energy Systems. [PDF]

Sensors (Basel)
Hua H, Zhang Z, Liu X, Deng W.
europepmc   +1 more source

Associated General Contractors of California, Inc. and International Union of Operating Engineers (IUOE), AFL-CIO Local 3 (2002) [PDF]

, 2002

core   +1 more source

A rock brittleness index based on the postpeak energy release rate and damage surface characteristics for brittle hard rock

Deep Underground Science and Engineering, EarlyView.
This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang, Zaobao Liu, Jing Xue, Bo Lu, Wei Zeng, Dengke Zhang   +5 more
wiley   +1 more source

Techno-economic and environmental evaluation of the performance of a solar water pumping system in arid and desert climates. [PDF]

Sci Rep
Kriaa K, Rasheed RH, Shaban M, Singh NSS, Hussein SA, Sadeq AM, Hajlaoui K, Ahmadpour A.   +7 more
europepmc   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Using Biopolymers to Control Hydraulic Degradation of Natural Expansive-Clay Liners Due to Fines Migration: Long-Term Performance. [PDF]

Polymers (Basel)
Al-Mahbashi AM, Shaker A, Almajed A.
europepmc   +1 more source

High‐Performance Solar‐Thermal Hydrogel Based on Waste Biomass Materials for Power Generation and Water Purification

EcoEnergy, EarlyView.
An environmentally friendly and highly efficient solar evaporator was constructed using waste biomass materials and polyvinyl alcohol carrier, which achieves an outstanding evaporation rate of 1.48 kg m−2 h−1, corresponding to an energy conversion efficiency of 82.49% under 1.0 kW m−2 simulated sunlight irradiation.
Shuo Qi, Haiying Tian, Lu Han, Tianjiao Li, Zuoyu Wang, Pengfei Li, Yingyuan Zhang, Tao Jia, Xiuhua Zhao, Wai‐Yeung Wong, Nanxi Jin   +10 more
wiley   +1 more source

Numerical and experimental validation of Taguchi-optimized star-core fin inserts for enhanced thermal hydraulic performance factor. [PDF]

Sci Rep
Al-Saadi ZA, Ibrahim A, Dol SS, Radhi FA, Azeez HL, Al-Aasam AB, Ludin NA, Fazlizan A.   +7 more
europepmc   +1 more source

Copper‐Based Conductive Nanoinks: Scalable Synthesis via Continuous‐Flow Microwave‐Assisted Polyol Process

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Microwave‐assisted polyol synthesis in continuous flow produces metallic Cu nanoparticles, using ethylene glycol as solvent and reducing agent, lignin to stabilize the colloid and prevent oxidation, and metal‐seeds for particle size control. Metallic copper nanoparticles are a promising alternative to gold and silver in printed electronics due to their
Antonio Santana‐Otero, Yilian Fernández‐Afonso, María Salvador, André Van Zomeren, Salvador Bertran‐Llorens, María del Puerto Morales, Sabino Veintemillas‐Verdaguer   +6 more
wiley   +1 more source