Results 11 to 20 of about 5,736,037 (284)

Characterizations of normal structure [PDF]

Proceedings of the American Mathematical Society, 1974
The notions of asymptotic center for a decreasing net of sets and asymptotic normal structure are defined and several characterizations of normal structure are proved. Among these, the problem of whether complete normal structure is equivalent to normal structure is answered in the affirmative.
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A Dual-Chamber Serial–Parallel Piezoelectric Pump with an Integrated Sensor for Flow Rate Measurement

Sensors, 2019
A new concept of a dual-chamber serial-parallel piezoelectric pump with an integrated sensor (DSPPIS) is presented in this paper. By means of dividing a piezoelectric bimorph into an actuator and a sensor, sensing function is integrated onto the DSPPIS ...
Song Chen, Mai Yu, Junwu Kan, Jianping Li, Zhonghua Zhang, Xinyi Xie, Xiaomin Wang   +6 more
doaj   +1 more source

Optimal quantum pump in the presence of a superconducting lead [PDF]

, 2002
We investigate the parametric pumping of a hybrid structure consisting of a normal quantum dot, a normal lead and a superconducting lead. Using the time dependent scattering matrix theory, we have derived a general expression for the pumped electric ...
B.G. Wang, B.G. Wang, B.G. Wang, Baigeng Wang, C.W.J. Beenakker, D.J. Thouless, D.S. Fisher, F. Zhou, G.B. Lesovik, I.L. Aleiner, I.L. Aleiner, J. Wang, J. Wang, J.E. Avron, J.E. Avron, Jian Wang, M. Moskalets, M. Moskalets, M. Switkes, M. Wagner, M.G. Vavilov, M.L. Polianski, M.L. Polianski, M.P. Anantram, O. Entin-Wohlman, P.W. Brouwer, P.W. Brouwer, Q. Niu, Q.F. Sun, T.A. Shutenko, V. Gasparian, X.B. Wang, Y. Levinson, Y.D. Wei, Y.D. Wei   +34 more
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Normal Structure and Weakly Normal Structure of Orlicz Sequence Spaces [PDF]

Transactions of the American Mathematical Society, 1984
For a convex Orlicz functionφ:R+→R+∪{∞}\varphi :{{\bf {R}}_ + } \to {{\bf {R}}_ + } \cup \{ \infty \}and the associated Orlicz sequence spacelφ{l_\varphi }, we consider the following five properties: (1)lφ{l_\varphi }has a subspace isometric tol1{l_1}. (2)lφ{l_\varphi }is Schur. (3)lφ{l_\varphi }has normal structure.
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Generalized Zbaganu Constant

Journal of Harbin University of Science and Technology, 2017
A new geometric constant C ( )pz( ) X for a Banach space X is introduced ，called the generalizedZbaganu constant. Next，it is shown that the upper and the lower bounds of the constant estimation for any Banach space X.
CUI Yun-an, ZHANG Mei-ling
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Local light-ray rotation [PDF]

, 2009
We present a sheet structure that rotates the local ray direction through an arbitrary angle around the sheet normal. The sheet structure consists of two parallel Dove-prism sheets, each of which flips one component of the local direction of transmitted ...
, Alasdair C Hamilton, Bhuvanesh Sundar, Blair M Clark L Houston E A Smith G Leach J Hamilton A C Courtial J, Courtial J, Courtial J, Hamilton A C, Hamilton A C, Hamilton A C Sundar B Courtial J, Johannes Courtial, John Nelson, Needham T, Padgett M J, Watkins R A, Weisstein E W, Wikipedia, Wikipedia   +16 more
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On one-local retract in modular metrics [PDF]

Categories and General Algebraic Structures with Applications
We continue the study of the concept of one local retract in the settings of modular metrics. This concept has been studied in metric spaces and quasi-metric spaces by different authors with different motivations.
Oliver Olela Otafudu, Tlotlo Odacious Phawe   +1 more
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Nanowire dimer optical antenna brightens the surface defects of silicon

Nanophotonics, 2023
Plasmonic hot spots located between metallic dimer nanostructures have been utilized comprehensively to achieve efficient light emission. However, different from the enhancement occurred in the plasmonic hot spot, the investigation of light emission off ...
Li Ze, You Qingzhang, Wang Hui, Zhang Lisheng, Zhang Duan, Jia Shangtong, Fang Yan, Wang Peijie   +7 more
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A Novel Linear Walking Type Piezoelectric Actuator Based on the Parasitic Motion of Flexure Mechanisms

IEEE Access, 2019
A walking-type piezoelectric actuator based on the parasitic motion of flexure mechanisms is proposed in this paper. With the help of the parasitic motion of the asymmetrical flexure mechanism, the conventional walking-type piezoelectric actuator with ...
Jianming Wen, Nen Wan, Renming Wang, Song Chen, Jiajia Zheng, Jianping Li   +5 more
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Morphology controlling strategy of ZnS/CeO2 catalysts to enhance the photocatalytic performance for hydrogen production

JCIS Open, 2021
Semiconductor photocatalysts have been utilized to convert solar energy into hydrogen. However, CeO2 has been rarely reported as a photocatalyst for hydrogen production on account of the rapid photoelectron-hole pair recombination and limited visible ...
Chang Xia, Chongyu Xue, Weixiao Bian, Yajuan Wei, Jingbo Zhang   +4 more
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