Results 61 to 70 of about 505,223 (350)

Theory of output coupling for trapped fermionic atoms

, 2003
We develop a dynamic theory of output coupling, for fermionic atoms initially confined in a magnetic trap. We consider an exactly soluble one-dimensional model, with a spatially localized delta-type coupling between the atoms in the trap and a continuum ...
A. Griffin, B. DeMarco, B. Kneer, B. Piraux, B.P. Anderson, C. L. Cesar, C.A. Regal, C.P. Search, C.P. Search, C.W. Gardiner, E.W. Hagley, F. Schreck, G. Beck, G. Bruun, G. Modugno, G.M. Moy, G.M. Moy, H. Heiselberg, H. Kiesel, H.J. Kimble, H.P. Breuer, H.T.C. Stoof, I. Bloch, J. Jeffers, J. Ruostekoski, J. Schneider, J.J. Hope, J.J. Hope, J.L. Martin, K.G. Petrosyan, K.M. O’Hara, L. Davidovich, L. Davidovich, L. Pitaevskii, M. Amoruso, M. Henny, M. Houbiers, M. Moshinsky, M. Moshinsky, M.-O. Mewes, M.A. Baranov, M.G. Moore, M.J. Collett, M.J. Holland, M.W. Jack, P. A. S. Pires Filho, P. Szriftgiser, R. Short, S. Choi, S.R. Granade, U. Fano, V. Man’ko, W. Ketterle, W.D. Oliver, Y. Japha   +54 more
core   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Mechanical Performance Analysis and Profile Optimization of Pre-bent Steel-concrete Composite Straddle Monorail Track Beams

Chengshi guidao jiaotong yanjiu
[Objective] Most conventional straddle monorail track beams utilize a profile form with 850 mm width. In response to the urban rail transit construction demands of the third and fourth-tier cities in China, relevant enterprises propose a profile form ...
Yuanyuan LIU, Yanli SHEN, Peng DU
doaj   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Design Procedures for Fiber Composite Box Beams [PDF]

Step-by-step procedures are described which can be used for the preliminary design of fiber composite box beams subjected to combined loadings.
Chamis, Christos C., Murthy, Pappu L. N.
core   +1 more source

DIRC, a New Type of Particle Identification System for BABAR [PDF]

, 1997
The DIRC, a new type of Cherenkov imaging device, has been selected as the primary particle identification system for the BABAR detector at the asymmetric B-factory, PEP-II.
Aston, Jochen Schwiening, Staengle
core   +3 more sources

Simplified method of analysis of adjacent precast “deck free” concrete box beams used in accelerated bridge construction [PDF]

, 2021
Masrra Jajjawi
openalex   +1 more source

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

Advanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Production of Arachidonic Acid by Mortierella alpina I49-N18

Food Technology and Biotechnology, 2002
Arachidonic acid (AA), an essential fatty acid in human body, fermented by Mortierella alpina I49-N18 was investigated in a shake-flask, and a 50-ton fermentor.
Ji Wang, Yun Shang, Guohong Gong, Jianming Yao, Zengling Yu, Chengling Yuan   +5 more
doaj