Results 71 to 80 of about 251,598 (308)
Advanced Science, EarlyView.Thermal cyclotrimerization of nitriles converts interfacial discontinuity in MAF‐stu‐1/PIM‐1 MMMs into a continuity‐enhanced junction. Triazine–Zn2+ coordination between TR‐PIM chains and MAF‐stu‐1, together with hydrogen bonding and π–π stacking, lowers interfacial tension and builds selective CO2 pathways, enabling > 10 000 barrer CO2 permeability ...
Zhihong Lin +7 more
wiley +1 more source
GEOS-20 m cable boom mechanism [PDF]
, 1977 The GEOS cable boom mechanism allows the controlled deployment of a 20 m long cable in a centrifugal force field. In launch configuration the flat cable is reeled on a 240 mm diameter drum.
Schmidt, B. K., Suttner, K.
core +2 more sources
Mechanical Analysis on the Transmission Mechanism of 35 Type Gear Long Ring Rack Pumping Units
Jixie chuandong, 2023 Taking a new type of 35 pumping unit suitable for deep well mining as the research object, the mechanical analysis of its gear long ring rack transmission mechanism is carried out to solve the problems of short operation cycle and high energy consumption
Peng Zhenhua +7 more
doaj
A Novel Hybrid-Flux Magnetic Gear and Its Performance Analysis Using the 3-D Finite Element Method
Energies, 2015 This paper presents a novel hybrid-flux magnetic gear, which integrates a transverse-flux magnetic gear and an axial-flux magnetic gear into a single unit.
Yiduan Chen, Weinong Fu
doaj +1 more source
Rapid Steam‐Assisted Temperature Swing Adsorption for Direct Air Capture Using a Rotary Adsorber
Advanced Science, EarlyView.This study presents a direct air capture (DAC) device based on a steam‐regeneration rotary adsorber for high‐purity CO2. Testing of the prototype demonstrates its capability for continuous and stable carbon capture with the potential to achieve ton‐scale.
Junye Wu +6 more
wiley +1 more source
Uganda and Malawi field pilots of proposed LSMS fisheries module: summary report [PDF]
, 2010 While an overwhelming majority of sub-Saharan African countries exhibit serious weaknesses in statistics pertaining to crop and livestock sectors, the deficiencies in terms of nationally representative data on the fishery sector are even more acute.
Allison, E.H. +3 more
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018 The paper presents results of complex research of vibration behavior of the differential reduction gear unit of a turboprop engine on the basis of statistics of products with repaired reduction gears and those placed under repair.
A. A. Avramenko +4 more
doaj +1 more source
Advanced Science, EarlyView.This review summarizes green and low‐carbon strategies throughout the entire life cycle of polyester plastics, including sustainable monomer synthesis, optimization polymerization, efficient recycling, and advanced upcycling technologies. The synergistic implementation of these strategies is expected to significantly promote the development of a ...
Jinzhou Li +5 more
wiley +1 more source
Speed control device for a heavy duty shaft [PDF]
, 1980 A speed control device is characterized by a reference speed shaft spatially related to a heavy duty shaft, a drive train for driving the reference speed shaft at a constant angular velocity, a drive train for driving the heavy duty shaft at a variable ...
Ford, A. G.
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Optimization of energy efficiency and NVH behaviour of a helical gear unit
Mechanics & IndustryThe goal of this study is to perform a multi-objective optimization of a gear unit in order to improve its performance in terms of mechanical power losses, gear dynamics and equivalent sound power radiated by the housing.
Ben Younes Emna +4 more
doaj +1 more source