Results 111 to 120 of about 48,297 (229)

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Mitigating VFA accumulation in hydrogen‐assisted anaerobic digestion through MEC integration

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 4, Page 915-924, April 2026.
Abstract BACKGROUND Biological hydrogenotrophic methanization is a promising method to improve biogas quality in anaerobic digestion systems. However, hydrogen‐assisted anaerobic digesters (AD‐H2) are prone to volatile fatty acid (VFA) accumulation and process instability.
Afrooz Bayat, Ricardo Bello‐Mendoza
wiley   +1 more source

Design of Emergency Stop Function of Electro-hydraulic Control System of Hydraulic Supports

Gong-kuang zidonghua, 2012
In view of problem of poor anti-interference of existing electro-hydraulic control systems, the paper proposed a design scheme of emergency stop function of electro-hydraulic control system of hydraulic supports based on C8051F020 single-chip ...
ZHANG Wen-jie, TIAN Mu-qin, SONG Jian-cheng, XU Chun-yu, XIN Chun-hong   +4 more
doaj  

Study on the Vibration Characteristics of Separated Armature Assembly in an Electro-Hydraulic Servo Valve Under Interference Fit

Actuators
The electro-hydraulic servo valve is a critical component that transforms electrical signals into hydraulic signals, thereby controlling the hydraulic system. It finds extensive application in precision control systems.
Tong Li, Jinghui Peng, Songjing Li, Juan Zhang, Aiying Zhang   +4 more
doaj   +1 more source

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh, Siqi Liu, Nurul F. Himma, Béla Fiser, Andrea I. Schäfer   +4 more
wiley   +1 more source

Defect‐Healed Au/rGO Coating for the Corrosion Protection of PEMFC Bipolar Plates

Advanced Materials Technologies, Volume 11, Issue 5, 6 March 2026.
 A defect‐healed gold/reduced graphene oxide (Au/rGO) coating is presented for stainless steel bipolar plates in polymer electrolyte membrane fuel cells. Gold nanoparticles nucleate at graphene oxide defects, blocking corrosive ion penetration and enhancing corrosion resistance, thereby ensuring durable fuel cell operation.
Jinmyeong Seo, Jungjoon Park, Soobin Park, Qing Wang, Bayaraa Sukhbaatar, Sanghwa Yoon, Bongyoung Yoo   +6 more
wiley   +1 more source

Optimization of Electro-Hydraulic System Power Matching for the Main Transmission Chain of Heavy Machinery

Machines
Crawler cranes suffer from power mismatch in their electro-mechanical–hydraulic main drive system under sudden load variations and multi-action coupling conditions, which results in low energy utilization efficiency.
Yue Wang, Jin Zhang, Yuhang Zhao, Mingyue Wang, Jiaxin Sui, Ying Li, Xiangdong Kong   +6 more
doaj   +1 more source

Hydraulic Gap Control on Strip Rolling Mills

Measurement + Control, 1971
Early applications of hydraulic loading were confined to foil rolling mills but recent developments have been rapid. Prestressed mills were adopted to obtain high stiffness and stability.
C. D. Collinson
doaj   +1 more source

Preliminary test on modified clays for seawater resistant drilling fluids [PDF]

, 2015
The quality of a drilling fluid declines in salt water conditions. An engineered clay (HYPER clay) was developed for geosynthetic clay liners with enhanced resistance to aggressive conditions.
Bezuijen, Adam, D, Verastegui Flores, den Hamer, Davina, Di Emidio, Gemmina   +3 more
core  

Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)

Advanced Science, Volume 13, Issue 15, 13 March 2026.
Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır, Yuan Fang, Consuelo Contreras, Andrew K. Schulz, Florian Hartmann   +4 more
wiley   +1 more source