Results 141 to 150 of about 1,179,786 (405)
Fixed gain and adaptive techniques for rotorcraft vibration control [PDF]
The results of an analysis effort performed to demonstrate the feasibility of employing approximate dynamical models and frequency shaped cost functional control law desgin techniques for helicopter vibration suppression are presented.
Roy, R. H., Saberi, H. A., Walker, R. A.
core +1 more source
Advanced Functional Materials, EarlyView.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 +4 more
wiley +1 more source
Study on Semi-active Control of Coupled Vibration of Carbody Underframe Suspended System
机车电传动, 2017 To reduce the vibration of car body and protect carbody underframe suspended equipment, the coupling vibration relationship between carbody and carbody underframe suspension equipment was studied to improve vehicle dynamic performance.
TIAN Xiangyang, ZENG Jing, WANG Qunsheng
doaj
Active vibration control of a cable-driven parallel robot using active rods
Mechanics & IndustryThis study deals with the integration of two active rods on a cable-driven parallel robot (CDPR) to control its vibrations. Three control laws derived from Integral Force Feedback (IFF) are proposed and compared analytically using a dynamic CDPR model ...
Lacaze Florian +3 more
doaj +1 more source
Electroactive Metal–Organic Frameworks for Electrocatalysis
Advanced Functional Materials, EarlyView.Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska +7 more
wiley +1 more source
Optimum mix of passive and active control of space structures [PDF]
The objective of this research was to test vibration suppression (settling time and jitter) of a large space structure (LSS) characterized by low frequency high global vibration modes.
Richards, Ken, Rogers, Lynn
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Photoswitching Conduction in Framework Materials
Advanced Functional Materials, EarlyView.This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez +4 more
wiley +1 more source
Applied Ocean ResearchActive control is effective in reducing the low-frequency vibration and acoustic radiation of the stern system of an underwater vehicle. This paper theoretically investigates the reduction of vibration and far-field radiation noise in the stern system of
Yaqi Tian, Cong Zhang, Lei Yang
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Quasi-modal vibration control by means of active control bearings [PDF]
This paper investigates a design method of an active control bearing system with only velocity feedback. The study provides a new quasi-modal control method for a control system design of an active control bearing system in which feedback coefficients ...
Fleming, D. P., Nonami, K.
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Advanced Functional Materials, EarlyView.Copper catalysts introduced with different non‐metallic elements regulating the coordination number of Cu are prepared by magnetron sputtering. Reducing the Cu coordination number enhances C─C coupling and boosts C2+ product selectivity, by lowering the energy barrier for the *CO → *CHO conversion step. The optimized Si‐doped Cu catalyst achieves a C2+
Xiaoye Du +8 more
wiley +1 more source