Results 31 to 40 of about 198,611 (304)

Dynamical backaction cooling with free electrons [PDF]

Nature Communications, 2015
AbstractThe ability to cool single ions, atomic ensembles, and more recently macroscopic degrees of freedom down to the quantum ground state has generated considerable progress and perspectives in fundamental and technological science. These major advances have been essentially obtained by coupling mechanical motion to a resonant electromagnetic degree
Nigues, A., Siria, A., Verlot, Pierre
openaire   +4 more sources

Modeling Simulation and Temperature Control on Thermal Characteristics of Airborne Liquid Cooling System

IEEE Access, 2020
Aiming at the temperature control of the liquid cooling system of aircraft electronic equipment, the thermal characteristics of the system under different temperature conditions are analyzed through model simulation, and a calculation method is given for
Zhangzhi Dong, Xiaogang Li, Zhe Li, Yanyan Hou   +3 more
doaj   +1 more source

Tunable nano Peltier cooling device from geometric effects using a single graphene nanoribbon

, 2012
Based on the phenomenon of curvature-induced doping in graphene we propose a class of Peltier cooling devices, produced by geometrical effects, without gating.
A Shakouri, B Öyilmaz, D Rowe, E A Kim, G H Zeng, G Liu, G Rao, H C Cheng, H Y Chiu, I Chowdhury, J R Williams, J Zhang, K S Novoselov, P Wei, S Datta, S G Nam, T Lohmann, T Yu, X Fan, Y Ouyang   +19 more
core   +1 more source

STK: A new CCD camera at the University Observatory Jena [PDF]

, 2010
The Schmidt-Teleskop-Kamera (STK) is a new CCD-imager, which is operated since begin of 2009 at the University Observatory Jena. This article describes the main characteristics of the new camera.
Bessell, Fukugita, Mugrauer, Mugrauer, Pfau, Skrutskie   +5 more
core   +1 more source

Laser cooling with a modified optical shaker

, 2009
Some practical improvements are proposed for the "optical-shaker" laser-cooling technique [I.S. Averbukh and Y. Prior, Phys. Rev. Lett. 94, 153002 (2005)].
Marmet, Louis
core   +1 more source

Electronics Cooling Fan Noise Prediction [PDF]

, 2006
Using the finite volume CFD software FLUENT, one fan was studied at a given flow rate (1.5m3/min) for three different operational rotating speeds : 2,000, 2,350 and 2,700 rpm. The turbulent air flow analysis predicts the acoustic behavior of the fan. The
Dozolme, A., Marchal, T., Metwally, H.
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Advanced bifurcation strategies in microchannel systems: A comprehensive review of heat transfer and flow optimisation techniques

Results in Engineering
This paper comprehensively examines developments in bifurcated microchannels, focusing on their role in boosting heat transfer and fluid flow efficiency in thermal management systems. Bifurcated designs, incorporating Y-shaped and radial structures, have
Mohammad Ismail
doaj   +1 more source

ISCAD — Design, control and car integration of a 48 volt high performance drive

CES Transactions on Electrical Machines and Systems, 2019
Through its new technology the ISCAD system provides up to 300 kW with a safe-to-touch 48 Volt battery. This results in a high-performance drive that is intrinsically electrically safe. The novel machine design requires new concepts for power electronics,
S. Runde, A. Baumgardt, O. Moros, B. Rubey, D. Gerling   +4 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source