Results 71 to 80 of about 502,130 (248)

Optical dipole traps and atomic waveguides based on Bessel light beams

, 2001
We theoretically investigate the use of Bessel light beams generated using axicons for creating optical dipole traps for cold atoms and atomic waveguiding.
A. E. Siegman, A. Vasara, B. De Marco, C. Henkel, C. Henkel, D. Frese, D. L. Feder, D. M. Stamper-Kurn, D. M. Stamper-Kurn, D. S. Petrov, E. B. Kolomeisky, E. M. Wright, Ewan M. Wright, F. Dalfovo, G. Baym, H. Monien, J. Arlt, J. Arlt, J. Denschlag, J. Durnin, J. H. Thywissen, J. Turunen, Jochen Arlt, Josh Soneson, K. B. Davis, K. Bongs, K. W. Madison, Kishan Dholakia, L. D. Carr, L. D. Carr, L. Tonks, M. D. Girardeau, M. D. Girardeau, M. D. Girardeau, M. Girardeau, M. Girardeau, M. H. Anderson, M. Key, M. Olshanii, M. R. Andrews, M. R. Matthews, M. Saffman, M. Schiffer, N. H. Dekker, O. Zobay, P. Villain, R. M. Herman, S. Bali, S. Burger, S. K. Adhikari, S. L. Cornish, T. A. Savard, V. M. Perez-Garcia   +52 more
core   +1 more source

On the Origin of the Galaxy Star-Formation-Rate Sequence: Evolution and Scatter [PDF]

, 2010
We use a semi-analytic model for disk galaxies to explore the origin of the time evolution and small scatter of the galaxy SFR sequence -- the tight correlation between star-formation rate (SFR) and stellar mass (M_star).
Aaron A. Dutton, Agertz, Avila Reese, Avishai Dekel, Bell, Bigiel, Birnboim, Birnboim, Blitz, Blitz, Bothwell, Bouwens, Bruzual, Bullock, Bullock, Cattaneo, Chabrier, Cole, Cole, Courteau, Croton, Daddi, Daddi, Daddi, Daddi, Davé, Dekel, Dekel, Dekel, Dekel, Dunkley, Dutton, Dutton, Elbaz, Elmegreen, Elmegreen, Elmegreen, Erb, Firmani, Frank C. Van Den Bosch, Franx, Gao, Garnett, Gonzalez, Hatton, Hopkins, Kauffmann, Kauffmann, Kennicutt, Keres, Krumholz, Lilly, Lotz, Macciò, Macciò, Madau, Maller, Martin, Melbourne, Mo, Murray, Navarro, Navarro, Neistein, Noeske, Noeske, Pannella, Prochaska, Pérez-González, Salim, Schiminovich, Schiminovich, Schmidt, Sharma, Shen, Sobral, Somerville, Somerville, Stark, Sutherland, Tacconi, Tacconi, Tacconi, Van Den, Van Den, Van Den Bosch, Villar, Wechsler, Williams, Wolf, Wong, Wu, Zhao   +92 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Modeling of gas adsorption on graphene nanoribbons

, 2010
We present a theory to study gas molecules adsorption on armchair graphene nanoribbons (AGNRs) by applying the results of \emph{ab} \emph{initio} calculations to the single-band tight-binding approximation.
Alireza Saffarzadeh, Capone S., Harrison W. A., Romero H. E., Saito R.   +4 more
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Formation mechanism of tight sandstone gas in areas of low hydrocarbon generation intensity: A case study of the Upper Paleozoic in north Tianhuan depression in Ordos Basin, NW China

Petroleum Exploration and Development, 2018
The Upper Paleozoic in the north part of Tianhuan depression in the Ordos Basin, NW China has lower hydrocarbon generation intensity and complex gas-water relationship, the main factors controlling the formation of tight sandstone gas and the ...
Fudong ZHANG, Jun LI, Guoqi WEI, Xinshe LIU, Jianying GUO, Jian LI, Liyong FAN, Yuanqi SHE, Hui GUAN, Shen YANG, Liyan SHAO   +10 more
doaj   +1 more source

30 kV coaxial vacuum-tight feedthrough for operation at cryogenic temperatures

, 2010
In this paper we describe the technology of building a vacuum-tight high voltage feedthrough which is able to operate at voltages up to 30 kV. The feedthrough has a coaxial structure with a grounded sheath which makes it capable to lead high voltage ...
Badhrees, I., Delaquis, S., Ereditato, A., Janos, S., Kreslo, I., Messina, M., Moser, U., Rossi, B., Zeller, M.   +8 more
core   +1 more source

Mapping the submillimeter spiral wave in NGC 6946 [PDF]

, 2002
We have analysed SCUBA 850\mum images of the (near) face-on spiral galaxy NGC 6946, and found a tight correlation between dust thermal emission and molecular gas. The map of visual optical depth relates well to the distribution of neutral gas (HI+H2) and
Agladze, Alton, Alton, Alton, Alton, Beck, Beckman, Berlind, Bianchi, Bianchi, Bianchi, Bianchi, Bianchi, Block, Bohlin, Boulanger, Boulanger, Burton, Casey, Casoli, Corradi, D. Pierce-Price, de Jong, Draine, Dumke, Dumke, Dunne, Edmunds, Engargiola, F. Combes, Fall, Frick, Genzel, Gonzalez, Guélin, Guélin, Holland, Hughes, Israel, J. Richer, Jenness, Knapen, Masci, Masi, Mathis, Mauersberger, Neininger, Nieten, P. B. Alton, Peletier, Pierce-Price, Rand, Reach, Rengarajan, S. Bianchi, Sauty, Seigar, Siebenmorgen, Soifer, Sopka, Tacconi, Tacconi, Trewhella, Valentijn, Vila-Costas, Weliachew, White, Williams, Witt, Xilouris   +69 more
core   +3 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source