Results 91 to 100 of about 14,556 (247)
High Voltage, EarlyView.ABSTRACT The harmonic current and vibration of a converter transformer are effective pieces of information for detecting mechanical faults in the winding. In this paper, the ratio of vibration acceleration to the current squared is defined as the vibration frequency response function (VFRF) of the winding, and then, a novel online vibration frequency ...
Shuyu Wu, Fan Zhang, Shengchang Ji
wiley +1 more source
Micromachined vibratory gyroscopes controlled by a high order band-pass sigma delta modulator.
, 2007 —This work reports on the design of novel closed-loop control systems for the sense mode of a vibratory-rate gyroscope based on a high-order sigma-delta modulator (SDM). A low-pass and two distinctive bandpass topologies are derived, and their advantages
Dong, Yufeng +2 more
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Experimental investigation into amplitude-dependent modal properties of an eleven-span motorway bridge [PDF]
, 2015 The authors would like to thank their supporters. New Zealand Earthquake Commission (EQC) Research Foundation provided financial support for experimental work (Grant No. UNI/578). New Zealand Transport Agency (NZTA) provided access to the bridge.
Beskhyroun, Sherif +2 more
core +1 more source
High Voltage, EarlyView.ABSTRACT Limited by the theoretical basis and diagnostic methods, the winding mechanical condition monitoring often requires both normal condition vibration signals and present vibration signals, and the winding mechanical condition identification is completed by comparing with the normal condition signals.
Shuyu Wu +3 more
wiley +1 more source
Micro systems technology [PDF]
, 1994 The emerging field of Micro Systems Technology is described. Micro Systems Technology can be seen as the meeting of disciplines, a product of convergence along different lines.
Fluitman, Jan H.J
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The British Journal of Sociology, EarlyView.ABSTRACT Trust is both a prerequisite and a product of insurance, as insurance contracts are built on and create trust relations that enable a risk‐averse perspective towards the future. At the same time, insurer‐policyholder relationships are characterised by a persistent distrust, rooted in insurance economics and industry reputation. In this article,
Maiju Tanninen, Gert Meyers
wiley +1 more source
International Journal of Cosmetic Science, EarlyView.A tactile sensor with a probe replicating a fingerprint quantified skin texture by measuring vibration and friction. Regression analysis linked smoothness and moistness perceptions with high‐frequency vibration amplitude and friction. These findings support the objective assessment of skin texture, enhancing product evaluation consistency and bridging ...
Naoki Saito +4 more
wiley +1 more source
Development of a High-Sensitivity Optical Accelerometer for Low-Frequency Vibration Measurement
Sensors, 2018 Low-frequency vibration is a harmful factor that affects the accuracy of micro/nano-measuring machines. Low-frequency vibration cannot be completely eliminated by passive control methods, such as the use of air-floating platforms.
Rui-Jun Li +4 more
doaj +1 more source
Journal of Advanced Nursing, EarlyView.ABSTRACT Aim To evaluate the feasibility, effectiveness, and acceptability of a spherical video‐based virtual reality training programme aimed at helping nurses manage workplace violence. Design A convergent mixed‐methods study. Methods This study included nurses from a tertiary medical centre in Taiwan. The training programme involved four interactive
Yen‐Yin Lin +5 more
wiley +1 more source
Resonance frequency measurement for space accelerometer
Sensors and Actuators A: PhysicalISSN:0924 ...
Didier Chérubin Negretto +6 more
openaire +2 more sources