Results 61 to 70 of about 167,174 (295)

Simultaneous Magneto-Optical Trapping of Two Lithium Isotopes [PDF]

, 1999
We confine 4 10^8 fermionic 6Li atoms simultaneously with 9 10^9 bosonic 7Li atoms in a magneto-optical trap based on an all-semiconductor laser system. We optimize the two-isotope sample for sympathetic evaporative cooling.
A. Imamoglu, A.G.W. Modavi, A.J. Leggett, Alice Sinatra, B. DeMarco, B. DeMarco, B. DeMarco, C.C. Bradley, C.J. Myatt, Christophe Salomon, D.G. Fried, E. Timmermans, E.R.I. Abraham, F. van Abeelen, Florian Schreck, G. Ferrari, G. Ferrari, G.D. Telles, Gabriele Ferrari, H.T.C. Stoof, J. Javanainen, J. Kawanake, J.M.K.V.A. Koelman, J.P. Shaffer, K. Moelmer, K.B. Davis, M.A. Baranov, M.H. Anderson, M.S. Santos, Marc-Oliver Mewes, N.W.M. Ritchie, T. Busch, U. Schünemann, W. Geist, W. Ketterle, W. Ketterle, W. Süptitz   +36 more
core   +2 more sources

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Research on Confined Compression and Breakage Behaviour as Well as Stress Evolution of Rice Under Framework of Cohesion Zone Model

Agriculture
Agricultural materials frequently undergo fragmentation due to high-stress conditions during processing, storage, and transportation. Throughout these processes, the spatial arrangement and morphology of particles continuously evolve, rendering the ...
Xianle Li, Mengyuan Wang, Yanlong Han, Anqi Li, Xinlei Wang, Haonan Gao, Tianyi Wang   +6 more
doaj   +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

Low-Cost Fiber Rope Reinforced Polymer (FRRP) Confinement of Square Columns with Different Corner Radii

Buildings, 2021
This research investigates the behavior of square concrete columns externally wrapped by low-cost and easily available fiber rope reinforced polymer (FRRP) composites.
Qudeer Hussain, Anat Ruangrassamee, Somnuk Tangtermsirikul, Panuwat Joyklad, Anil C. Wijeyewickrema   +4 more
doaj   +1 more source

Isotropic-nematic transition in liquid crystals confined between rough walls

, 2005
The effect of rough walls on the phase behaviour of a confined liquid crystal (LC) fluid is studied using constant pressure Monte Carlo simulations. The LC is modelled as a fluid of soft ellipsoidal molecules and the rough walls are represented as a hard
Allen, Andrienko, Berne, Camp, Cheung, D.L. Cheung, Delattre, Dijkstra, Eppenga, F. Schmid, Gay, Gelb, Jerome, Lange, Panagiotopoulos, Panagiotopoulos, Quintana, Steuer, Vink, Vink, von Roij, Wall   +21 more
core   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Study on axial compressive behavior and mesoscopic structural evolution of FRP confined coal gangue concrete.

PLoS ONE
To address the environmental hazards caused by coal gangue waste, coal gangue concrete (CGC) has been proposed as a solution. However, due to its porosity and low strength, CGC faces numerous challenges in practical applications.
Qingwen Li, Mengjiao Xu, Chuangchuang Pan, Lei Zhang, Yuqi Zhong, Wenxia Li, Shuhan Gu, Mengmeng Yu   +7 more
doaj   +1 more source

Probabilistic Prediction Model for Ultimate Conditions Under Compression of FRP-Wrapped Concrete Columns Based on Bayesian Inference

Buildings
The compressive strength and ultimate strain of FRP-confined concrete cylinders are the key indicators for evaluating their mechanical properties. Accurate prediction of compressive strength and ultimate strain is essential for reliability analysis and ...
Feng Cao, Ran Zhu, Jun-Xing Zheng, Hai-Bin Huang, Dong Liang   +4 more
doaj   +1 more source

Entropic forces exerted on a rough wall by a grafted semiflexible polymer

, 2014
We study the entropic force due to a fluctuating semiflexible polymer that is grafted from one end and confined by a rigid and rough wall from the other end. We show how roughness of the wall modifies the entropic force.
Bayati, Parvin, Ghassab, Leila, Najafi, Ali   +2 more
core   +1 more source