Results 81 to 90 of about 9,764,470 (204)

Low noise pavement characterization through TCN analysis

The use of low-noise pavements is a valid solution to reduce road traffic noise at source. Further studies are needed to optimize their design and ensure their durability.
MORO, Antonino, KANKA, Simon, LICITRA, Gaetano, FIDECARO, Francesco, MONTICELLI, Alessandro   +4 more
core   +1 more source

Low-Noise 3-D Avalanche Photodiodes

IEEE Photonics Journal, 2016
In this paper, we present a new 3-D structure for the InP-based avalanche photodiode, aiming at decreasing the excess noise factor. To the best of our knowledge, it is the first time new device designs based on the recently developed 3-D spatial dead ...
Zhiwei Wu, Jingshu Guo, Yuan Li, Yanli Zhao   +3 more
doaj   +1 more source

Compact conversion and cyclostationary noise modelling of pn junction diodes in low-injection - Part II: Discussion [PDF]

, 2004
Starting from the compact conversion and cyclostationary pn diode noise model presented in the companion paper, we present an extensive validation based on comparisons with physics-based numerical simulations.
Bonani, Fabrizio, Ghione, Giovanni, Donati Guerrieri, Simona   +2 more
core   +1 more source

A 6.7 μW Low-Noise, Compact PLL with an Input MEMS-Based Reference Oscillator Featuring a High-Resolution Dead/Blind Zone-Free PFD

Sensors
This article reports a 110.2 MHz ultra-low-power phase-locked loop (PLL) for MEMS timing/frequency reference oscillator applications. It utilizes a 6.89 MHz MEMS-based oscillator as an input reference.
Ahmed Kira, Mohannad Y. Elsayed, Karim Allidina, Vamsy P. Chodavarapu, Mourad N. El-Gamal   +4 more
doaj   +1 more source

Characterization of low noise technologies applied to a Fullscale fuselage mounted nose landing gear

, 2015
The negative impact of aircraft noise includes effects on population's health, land use planning and economic issues such as building restrictions and operating restrictions for airports. Thus, the reduction of noise generated by aircraft at take-off and
Esposito, Marco,, Dahan, Jeremy, Bianco, Antonello, Bennett, Gareth J.,, O'Reilly, Ciarán,, Amoroso, Francesco,, AMOROSO, FRANCESCO, O'Reilly, Ciaran, Esposito, Marco, Kennedy, John, Kennedy, John,, Dahan, Jeremy,, Bruno, Massimiliano, Di Giulio, Massimiliano,, Neri, Eleonora, Neri, Eleonora,, Di Giulio, Massimiliano, Bianco, Antonello,, Bruno, Massimiliano,, Bennett, Gareth J.   +19 more
core   +1 more source

EMD-based filtering (EMDF) of low-frequency noise for speech enhancement [PDF]

, 2012
An Empirical Mode Decomposition based filtering (EMDF) approach is presented as a post-processing stage for speech enhancement. This method is particularly effective in low frequency noise environments.
Soraghan, John J., Chatlani, Navin
core   +2 more sources

Semiconductor Optical Amplifiers with Wide Gain Bandwidth and Enhanced Polarization Insensitivity Based on Tensile-Strained Quantum Wells

Sensors
The paper presents a wide-bandwidth, low-polarization semiconductor optical amplifier (SOA) based on strained quantum wells. By enhancing the material gain of quantum wells for TM modes, we have extended the gain bandwidth of the SOA while reducing its ...
Hui Tang, Meng Zhang, Changjin Yang, Lei Liang, Li Qin, Yuxin Lei, Peng Jia, Yongyi Chen, Yubing Wang, Yue Song, Cheng Qiu, Yuntao Cao, Dabing Li, Lijun Wang   +13 more
doaj   +1 more source

Low noise high performance 50nm T-gate metamorphic HEMT with cut-off frequency f_T of 440 GHz for millimeterwave imaging receivers applications [PDF]

, 2005
The 50 nm m-HEMT exhibits extremely high f_T, of 440GHz, low F_min of 0.7 dB, associated gain of 13 dB at 26 GHz with an exceptionally high Id of 200 mA/mm and gm of 950 ms/mm at low noise biased ...
H. McLelland, Elgaid, K., K. Elgaid, M. Holland, I.G. Thayne, Holland, M., Thayne, I.G., Moran, D., McLelland, H., D. Moran, Elgaid, Khaled   +10 more
core   +1 more source

A Low Noise CMOS Readout Based on a Polymer-Coated SAW Array for Miniature Electronic Nose

Sensors, 2016
An electronic nose (E-Nose) is one of the applications for surface acoustic wave (SAW) sensors. In this paper, we present a low-noise complementary metal–oxide–semiconductor (CMOS) readout application-specific integrated circuit (ASIC) based on an SAW ...
Cheng-Chun Wu, Szu-Chieh Liu, Shih-Wen Chiu, Kea-Tiong Tang   +3 more
doaj   +1 more source

A CMOS-Compatible, Low-Noise ISFET Based on High Efficiency Ion-Modulated Lateral-Bipolar Conduction

Sensors, 2009
Ion-sensitive, field-effect transistors (ISFET) have been useful biosensors in many applications. However, the signal-to-noise ratio of the ISFET is limited by its intrinsic, low-frequency noise.
Hsin Chen, Sheng-Ren Chang
doaj   +1 more source