Results 31 to 40 of about 2,736,349 (294)

Low noise charge injection in the CCD22 [PDF]

, 2004
The inclusion of a charge injection structure on a charge coupled device (CCD) allows for the mitigation of charge transfer loss which can be caused by radiation induced charge trapping defects.
Abbey, AF, Burt, DJ, Holland, AD, Hutchinson, IB, Morris, D, Pool, P, Smith, DR   +6 more
core   +1 more source

Investigation of Noise Properties in the InP HEMT for LNAs in Qubit Amplification: Effects From Channel Indium Content

IEEE Journal of the Electron Devices Society
The InP high-electron-mobility transistor (HEMT) is employed in cryogenic low-noise amplifiers (LNAs) for the readout of faint microwave signals in quantum computing.
Junjie Li, Johan Bergsten, Arsalan Pourkabirian, Jan Grahn   +3 more
doaj   +1 more source

A 0.18μm CMOS low-noise elliptic low-pass continuous-time filter [PDF]

, 2005
This paper presents a seventh order low-pass continuous-time elliptic filter for use in a high-performance wireline communication receiver. As an additional attribute, the filter provides programmable boost in the pass-band to counteract high frequency ...
Delgado Restituto, Manuel, Fernández Bootello, Juan Francisco, Rodríguez Vázquez, Ángel Benito   +2 more
core   +1 more source

Correcting low-frequency noise with continuous measurement [PDF]

, 2006
Low-frequency noise presents a serious source of decoherence in solid-state qubits. When combined with a continuous weak measurement of the eigenstates, the low-frequency noise induces a second-order relaxation between the qubit states. Here we show that
C. Gardiner, L. Tian, M. A. Nielsen
core   +2 more sources

Flow structure and unsteady characteristics of fountain flow induced by dual impinging jets

Kongqi donglixue xuebao
The flow-field structure and mechanical characteristics of dual impinging jets are critical issues during the takeoff and landing phases of aircraft. However, the unsteady characteristics of the fountain effect induced by dual impinging jets have not yet
Yifan Zhao, Rongping Zhang, Rongping Zhang, Yuxiang Liang, Yuxiang Liang, Jiaxi Zhao, Jiaxi Zhao, Xunnian Wang   +7 more
doaj   +1 more source

Estimating the effect of semi-transparent low-height road traffic noise barriers with ultra weak variational formulation [PDF]

, 2011
The ultra weak variational formulation (UWVF) approach is used to study the effect of semi-transparent road traffic noise barriers of limited height. This numerical method is extended to simulate sound propagation through a porous medium, based on the ...
Botteldooren, Dick, Ding, Lei, Van Renterghem, Timothy   +2 more
core   +1 more source

Squeezing in the audio gravitational wave detection band [PDF]

, 2004
We demonstrate the generation of broad-band continuous-wave optical squeezing down to 200Hz using a below threshold optical parametric oscillator (OPO). The squeezed state phase was controlled using a noise locking technique.
A. Rüdiger, B. Abbott, B. Caron, B. C. Buchler, David E. McClelland, Kirk McKenzie, Malcolm B. Gray, Nicolai Grosse, Ping Koy Lam, Stanley E. Whitcomb, T. Corbitt, Warwick P. Bowen   +11 more
core   +3 more sources

Ultrastable low-noise current amplifier

, 2014
An ultrastable low-noise current amplifier (ULCA) is presented. The ULCA is a non-cryogenic instrument based on specially designed operational amplifiers and resistor networks.
Ahlers, Franz Josef, Becker, Ulrich, Drung, Dietmar, Krause, Christian, Scherer, Hansjörg   +4 more
core   +1 more source

Photonic chip-based low-noise microwave oscillator. [PDF]

Nature
Kudelin I, Groman W, Ji QX, Guo J, Kelleher ML, Lee D, Nakamura T, McLemore CA, Shirmohammadi P, Hanifi S, Cheng H, Jin N, Wu L, Halladay S, Luo Y, Dai Z, Jin W, Bai J, Liu Y, Zhang W, Xiang C, Chang L, Iltchenko V, Miller O, Matsko A, Bowers SM, Rakich PT, Campbell JC, Bowers JE, Vahala KJ, Quinlan F, Diddams SA.   +31 more
europepmc   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source