Results 101 to 110 of about 9,764,470 (204)

Experimental Characterisation of the Low Frequency Noise Annoyance Arising from Industrial Plants

, 1992
Complaints about low frequency noise annoyance are frequently reported although the sound levels, measured according to usual procedures, do not seem to justify such reactions.
FAUSTI, Patrizio, Alessandro Cocchi, Patrizio Fausti, PIVA, Stefano, Stefano Piva, COCCHI A   +5 more
core   +1 more source

Airfoil noise reductions through leading edge serrations

This paper provides an experimental investigation into the use of leading edge (LE) serrations as a means of reducing the broadband noise generated due to the interaction between the aerofoil’s LE and impinging turbulence.
Joseph, P.F., Polacsek, C., Narayanan, S., Kim, J.W., Haeri, S., Chaitanya, P.   +5 more
core   +1 more source

Split-Voltage Configuration Improves Integrated Amplifier Power-Efficiency

Journal of Low Power Electronics and Applications
A split-voltage amplifier architecture is proposed which improves the power efficiency compared to a conventional implementation. The approach is verified with a prototype fabricated in 0.35 µm CMOS technology using lateral bipolar input transistors.
Sebastian Simmich, Robert Rieger
doaj   +1 more source

Firewall insulation package simulation and noise auralisation for EV [PDF]

, 2019
EV vehicle are now having a great influence on the market, with the number of vehicles sold increasing every year. For the engineer, the introduction of full electric vehicles means new challenges, a change in paradigms and new goals to achieve.
Qingmei Chang, Pasquale Napolitano, Massimo Viscardi   +2 more
core  

Attofarad-Class Ultra-High-Capacitance Resolution Capacitive Readout Circuits

Sensors
In order to meet the application requirements for high-precision and low-noise accelerometers in micro-vibration measurement and navigation fields, this paper presents the design and testing of an ultra-high-capacitance resolution capacitive readout ...
Guoteng Ren, Saifei Yuan, Jingjing Peng, Ruitao Liu, Yuhao Feng, Haonan Liu, Wenshuai Lu, Fei Xing, Ting Sun, Shijie Yu   +9 more
doaj   +1 more source

A Wide Tuning Range and Low Phase Noise VCO using New Capacitor Bank Structure

Majlesi Journal of Electrical Engineering
This paper presents a wide tuning range, and low noise voltage controlled oscillator (VCO) based on cross-coupled and colpitts structures. The advantages of this work provide a low-phase noise and robust start-up condition, leading to minimized the dc ...
Mostafa Katebi, Abbas Nasri, Siroos Toofan   +2 more
doaj  

Design and characterisation of a quiet, low turbulence open jet blow down wind tunnel in ISVR

, 2008
This technical report presents the design of an open-jet, blow-down wind tunnel that was newly commissioned in the anechoic chamber at the ISVR, University of Southampton, UK. This wind tunnel is intended for the measurement of airfoil trailing edge self-
Chong, T.P., Joseph, P.F., Davies, P.O.A.L.   +2 more
core   +1 more source

Cryogenic Characterisation of a Commercial Low-Noise Amplifier (LNA) for MKID Readout Systems. [PDF]

Sensors (Basel)
Santos-Verzilli DE, Portero-Rodríguez D, García-Vázquez H, Rodríguez Ramos JM, Rodríguez Ramos LF.   +4 more
europepmc   +1 more source

An integrated CMOS micro search‑coil magnetometer with on‑chip calibration and a low‑noise amplifier. [PDF]

Microsyst Nanoeng
Tavakkoli H, Ahmed M, Shah I, Fang S, Chen W, Bermak A, Lee YK.   +6 more
europepmc   +1 more source