Results 191 to 200 of about 49,323 (257)

Synergistic mechanism and stability control of gob-side entry retaining by pressure relief and roadside filling in thick coal seams. [PDF]

Sci Rep
Shen F, Rui X, Liu C, Yang J.
europepmc   +1 more source

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

Chemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler, Kati Schatz, Sebastian Rehfeldt, Harald Klein   +3 more
wiley   +1 more source

Review on Main Controlling Factors and Key Simulation Techniques of Hydro-Fracturing Potential for Coalbed Methane Reservoirs: Recent Progress, Challenges, and Prospects. [PDF]

ACS Omega
Guo W, Wei Y, Cao D, Wang A, Jin L, Shi H, Lv H, Duan Z.   +7 more
europepmc   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

Chemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel, Lucas Thumeyer, Ebbe H. Hartz, Håvard Hallås Stubseid, Peter Fröhlich, Martin Bertau   +5 more
wiley   +1 more source

An Energy-Efficient Gas-Oil Hybrid Servo Actuator with Single-Chamber Pressure Control for Biomimetic Quadruped Knee Joints. [PDF]

Biomimetics (Basel)
Yao M, Hua Z, Qian H.
europepmc   +1 more source

Ground control strategies for longwall top-coal caving panel in extra-thick coal seams with thick-hard roof. [PDF]

Sci Rep
Wang R, Zhang WG, Wang HS, Yu ZJ, Zhang Q.   +4 more
europepmc   +1 more source

Response Surface Analysis of Thermo-Hydraulic Performance of a Direct Absorption Solar Receiver Using Fe₃O₄ Nanofluid Under Concentrated Solar Irradiation. [PDF]

Nanomaterials (Basel)
Ham J, Kim H, Ryu SB, Cho H.
europepmc   +1 more source

Root anatomical gradients and cultivar differences underlie variation in root hydraulic properties in German winter wheat. [PDF]

J Exp Bot
Baca Cabrera JC, Jones DH, Vanderborght J, Behrend D, Schneider HM, Lobet G.   +5 more
europepmc   +1 more source

Coordinated Ecophysiological Trait Shifts of <i>Populus euphratica</i> Along a Groundwater-Depth Gradient: From Carbon Acquisition Toward Water Conservation in an Arid Riparian Forest. [PDF]

Plants (Basel)
Zhu Y, Feng H, Liu R, Ma J, Wang X.
europepmc   +1 more source