Results 71 to 80 of about 60,773 (300)

Optimization of evaporative cooling [PDF]

Physical Review A, 1997
Recent experiments have used forced evaporative cooling to produce Bose-Einstein condensation in dilute gases. The evaporative cooling process can be optimized to provide the maximum phase-space density with a specified number of atoms remaining.
Sackett, C.A., Bradley, C.C., Hulet, R.G.   +2 more
openaire   +2 more sources

Sympathetic cooling in an optically trapped mixture of alkali and spin-singlet atoms

, 2011
We report on the realization of a stable mixture of ultracold lithium and ytterbium atoms confined in a far-off-resonance optical dipole trap. We observe sympathetic cooling of 6Li by 174Yb and extract the s-wave scattering length magnitude |a6Li-174Yb| =
Dowd, William H., Gupta, Subhadeep, Hansen, Anders H., Ivanov, Vladyslav V., Jamison, Alan O., Khramov, Alexander, Muenchow, Frank   +6 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

The augmentation of the heat recovery by using evaporative cooling in HVAC applications: Experimental study

International Journal of Thermofluids
An experimental study was conducted to investigate the impact of evaporative cooling on heat recovery within HVAC systems. This study involved the development of a specialized test rig comprising two air passages connected by a wickless heat pipe heat ...
Ahmed Mohsin Alsayah, Johain J. Faraj, Adel A. Eidan   +2 more
doaj   +1 more source

Demon-like Algorithmic Quantum Cooling and its Realization with Quantum Optics [PDF]

, 2012
The simulation of low-temperature properties of many-body systems remains one of the major challenges in theoretical and experimental quantum information science.
A Aspuru-Guzik, A Lupascu, Alán Aspuru-Guzik, B Kraus, BP Lanyon, Chuan-Feng Li, D Aharonov, D Poulin, DP DiVincenzo, E Farhi, F Verstraete, GA Álvarez, Guang-Can Guo, H Weimer, I Buluta, I Kassal, I Kassal, J Baugh, J Casanova, J Zhang, Jin-Shi Xu, JT Barreiro, LJ Schulman, M-H Yung, Man-Hong Yung, PO Boykin, RP Feynman, S Lloyd, S Takahashi, S Toyabe, Sergio Boixo, SP Jordan, T-C Wei, W-B Gao, X-Q Zhou, Xiao-Ye Xu, Y Elias, Zheng-Wei Zhou   +37 more
core   +2 more sources

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

ANALYSIS OF POSSIBILITIES OF EVAPORATIVE COOLING IN AUTONOMOUS AND COMBINED SYSTEMS

Problems of the Regional Energetics, 2009
It is described possibility of the use of the evaporative cooling as in autonomous version of execution, so in combined systems, for example, as the component of desiccant–evaporative coolers, where preliminary dehumidification of the air assures high ...
Doroshenko A.V., Glauberman M.A.
doaj  

Cooling requirements fueled the collapse of a desert bird community from climate change. [PDF]

, 2019
Climate change threatens global biodiversity by increasing extinction risk, yet few studies have uncovered a physiological basis of climate-driven species declines.
Beissinger, Steven R, Iknayan, Kelly J, Riddell, Eric A, Sinervo, Barry, Wolf, Blair O   +4 more
core  

Creation of a Bose-condensed gas of rubidium 87 by laser cooling

, 2017
We demonstrate direct laser cooling of a gas of rubidium 87 atoms to quantum degeneracy. The method does not involve evaporative cooling, is fast, and induces little atom loss.
Chen, Wenlan, Crépel, Valentin, Hu, Jiazhong, Urvoy, Alban, Vendeiro, Zachary, Vuletić, Vladan   +5 more
core   +1 more source