Results 141 to 150 of about 465,669 (314)
Advanced Science, EarlyView.A molecular defect‐mediated charge accumulation strategy is developed to regulate the exciton behavior for selective molecular oxygen (O2)activation in poly(1,3,5‐triethynylbenzene) (PTEB). Artificial internal electric field (IEF) constructed in defective PTEB provides internal driving force to steer the directed migration of charge carriers, thereby ...
Xiaofeng Tang +8 more
wiley +1 more source
Jixie chuandong, 2016 In order to optimize the performance of excavator in the specific region,The mathematical model of optimization design is obtained constrained by operating performance and mechanical property of the working device.
Zhang Xian, Liu Baixi, Qu Tao
doaj
Single-stage electrohydraulic servosystem for actuating on airflow valve with frequencies to 500 hertz [PDF]
An airflow valve and its electrohydraulic actuation servosystem are described. The servosystem uses a high-power, single-stage servovalve to obtain a dynamic response beyond that of systems designed with conventional two-stage servovalves.
Lorenzo, C. F. +2 more
core +1 more source
Dynamic testing of docking system hardware [PDF]
, 1972 Extensive dynamic testing was conducted to verify the flight readiness of the Apollo docking hardware. Testing was performed on a unique six degree-of-freedom motion simulator controlled by a computer that calculated the associated spacecraft motions ...
Dorland, W. D.
core +1 more source
Advanced Science, EarlyView.A general fabricating strategy for arbitrary 3D organic mixed ionic‐electronic conductor architectures is reported using PEDOT:PSS microfiber building blocks. A water‐assisted self‐fusion process is successfully developed in which adhesion can be modulated as reversible (PSS‐rich) or irreversible (PEDOT‐rich) self‐fusion depending on the post‐treatment
Youngseok Kim +8 more
wiley +1 more source
Dynamic Behaviour of a Continuous Heat Exchanger/Reactor after Flow Failure [PDF]
, 2008 The intensified technologies offer new prospects for the development of hazardous chemical syntheses in safer conditions: the idea is to reduce the reaction volume by increasing the thermal performances and preferring the continuous mode to the batch one.
Benaissa, Wassila +5 more
core +1 more source
Advanced Science, EarlyView.This study combines the biological structure of octopuses with the “3D structure” of spacer fabrics to fabricate a dual‐interface solar evaporator with adaptive hydrothermal balance. Water adaptation is achieved through the differentiated design of the upper and lower layers, and dynamic hydrothermal balance is realized by dynamically regulating the ...
Ning Niu +10 more
wiley +1 more source
Operation and Result Analysis of Hydraulic Vehicle Holding Device
Journal of the Korean Society of Propulsion Engineers, 2018 Dae Rae Kim +4 more
openaire +1 more source
Tunable Sound Absorption via Evanescent‐Wave Coupling in Asymmetric Bilayer Metasurfaces
Advanced Science, EarlyView.Tunable sound absorption is realized through a bilayer metasurface system governed by evanescent‐wave coupling. This work demonstrates that such evanescent‐wave coupling provides a controllable scattering channel that destructively interferes with the specular reflection.
Pyung Sik Ma, Hyung Jin Lee
wiley +1 more source
Advanced Science, EarlyView.Increasing the density and homogeneity of soft magnetic composites are critical for achieving high power density and low core loss. This work proposes a novel strategy by combining ultrasonic‐assisted pressing and cold pressing. In this line, the density and permeability of magnetic core have been increased a lot, while the core loss is decreased ...
Xiaoying Huang +15 more
wiley +1 more source