Results 81 to 90 of about 573,006 (357)
Advanced Functional Materials, EarlyView.Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana +2 more
wiley +1 more source
The influence of reflections from the train body and the ground on the sound radiation from a railway rail [PDF]
Railway SciencesPurpose – The vibration of the rails is a significant source of railway rolling noise, often forming the dominant component of noise in the important frequency region between 400 and 2000 Hz.
David J. Thompson +5 more
doaj +1 more source
Viewgraphs on vibration isolation are presented. Techniques to control and isolate centrifuge disturbances were identified. Topics covered include: disturbance sources in the microgravity environment; microgravity assessment criteria; life sciences ...
Bastin, Paul
core +1 more source
Active Vibration Control of Structures using an Impedance Matching Control Technique [PDF]
, 2005 Active vibration control of structures has gained a lot of interest in recent years. This paper presents an active vibration control methodology of a structure using piezoelectric actuators.
Kamath, GM +4 more
core +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Shock and Vibration, 1994 The impulse response functions (force-strain relations) for Euler–Bernoulli and Timoshenko beams are considered. The response of a beam to a transverse impact force, including reflection at the boundary, is obtained with the convolution approach using ...
Hyungsoon Park, Youn-sik Park
doaj +1 more source
Design and implementation of robust decentralized control laws for the ACES structure at Marshall Space Flight Center [PDF]
Many large space system concepts will require active vibration control to satisfy critical performance requirements such as line-of-sight accuracy. In order for these concepts to become operational it is imperative that the benefits of active vibration ...
Collins, Emmanuel G., Jr. +2 more
core +1 more source
Servo-controlled decoupler eliminates oscillations in fluid flow - A concept [PDF]
, 1971 Active control technique, using accelerometer-controlled servovalve to operate a compensating piston, effectively eliminates pressure fluctuations due to longitudinal structural vibration within a relatively long ...
Fenwick, J. R.
core +1 more source
Advanced Functional Materials, EarlyView.This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies +8 more
wiley +1 more source
Study on Construction Methods Optimization for Subway Sound Barrier Project
Chengshi guidao jiaotong yanjiu[Objective] The construction of subway sound barriers is characterized by complex foundation treatment, low installation efficiency and high risk of high-altitude operations, leading to extended construction period, higher costs and hidden quality risks.
YANG Lei, WANG Lixiao
doaj +1 more source