Results 111 to 120 of about 154,299 (305)

Towards a real-time system for teaching novices good violin bowing technique [PDF]

open access: yes, 2009
We describe the ongoing development of a system to support the teaching of good posture and bowing technique to novice violin players. Using an inertial motion capture system we can track in real-time: i) a player’s bowing action (and measure how it ...
Bird, Jon   +2 more
core  

Chiral Nanohoops as an Efficient Spin Polarization System

open access: yesAdvanced Functional Materials, EarlyView.
Chiral conjugated nanohoops with a central dibenzopentalene unit exhibit 90% spin polarization at low voltage and high conductivity. These properties make them ideal components in molecular spintronics applications. Abstract A central challenge in molecular spintronics is to achieve a high spin polarization at low operating voltages and ambient ...
Anu Gupta   +4 more
wiley   +1 more source

Noise Reduction in Double‐Panel Structures by Cavity and Panel Resonance Control [PDF]

open access: yes, 2011
This paper presents an investigation of the cavity and the panel resonance control in a double‐panel structure. The double‐panel structure, which consists of two panels with air in the gap, is widely adopted in many applications such as aerospace due to ...
Berkhoff, Arthur, Ho, Jen-Hsuan
core   +2 more sources

Predicting and controlling risks from human exposures to vibration and mechanical shock: flag waving and flag weaving

open access: yes, 2014
At work or in leisure activities, many people are exposed to vibration or mechanical shocks associated with risks of injury or disease. This paper identifies information that can be used to decide whether there may be a risk from exposure to hand ...
Griffin, Michael J.
core   +1 more source

Self‐Refreshing Bi‐Based Active Sites for Efficient and Durable Electrochemical CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
A self‐refreshing Bi‐based catalyst is developed through the fabrication of a novel basic bismuth nitrate pre‐catalyst, which exhibits differential active sites of Bi2O2CO3 at low potentials and metallic Bi phases at high potentials, self‐repairing capability, and thus wide‐potential‐window efficiency and ultralong durability toward electrochemical CO2
Yuxuan Xiao   +7 more
wiley   +1 more source

Analysis of the effect of hydraulic steering wheel system on decrease in the vibration transmitted to driver’s hand-arm [PDF]

open access: yesطب کار, 2014
Background: Vibration of body especially that of hand-arm is a key factor in developing inconvenience in drivers, which decreases efficiency, triggers fatigue and disturbance in physiological activities, and finally predisposes drivers to occupational ...
Hasssan Rajabi   +4 more
doaj  

Design and Performance Assessment of a Semi-Active Suspension Model of Tractor Cabin

open access: yesJournal of Agricultural Machinery, 2015
Cumulative effect of transmitted vibrations to the tractor driver not only leads to driver health problems, but also reduces the driver working efficiency.
I Ahmadi
doaj   +1 more source

Design and development of a smart panel with five decentralised control units for the reduction of vibration and sound radiation

open access: yes, 2007
This Technical Report discusses the design and the construction of a smart panel with five decentralised direct velocity feedback control units in order to reduce the vibration of the panel dominated by well separated low frequency resonances.
Galassi, C., Gardonio, P., Gavagni, M.
core  

Switchable Supramolecular Adhesive by Tuning Interfacial Bonding and Modulus

open access: yesAdvanced Functional Materials, EarlyView.
The supramolecular adhesive (HyDiP) shows reversible adhesion and recyclability. In the dehydrated state, it is dense, stiff (E ≈445 MPa), transparent, and provides strong bonding with adhesion strengths up to 4.65 MPa. In the hydrated state, it becomes porous, soft (E ≈0.11 MPa), and detaches easily, enabling sustainable high‐strength applications ...
Rumin Fu   +10 more
wiley   +1 more source

Energy harvesting from earthquake for vibration-powered wireless sensors [PDF]

open access: yes, 2017
Wireless sensor networks can facilitate the acquisition of useful data for the assessment and retrofitting of existing structures and infrastructures.
Marano, G. C.   +3 more
core  

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