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Chinese Physics B 2020年第4期29卷 471-476页

作者： Zhen-Jie Tang Rong Li Xi-Wei Zhang School of Physics and Electrical Engineering Anyang Normal UniversityAnyang 455000China School of Mathematics and Statistics Anyang Normal UniversityAnyang 455000China

Designed ZrxSi1-xO2 films with combining bent and flat energy bands are employed as a charge trapping layer for memory *** to a single bent energy band,the bandgap structure with combining bent and flat energy bands exhibits larger memory window,faster program/erase speed,lower charge loss even at 200℃ for 104s,and wider temperature insensitive *** tunneling thickness together with electron recaptured efficiency in the trapping layer,and the balance of two competing electron loss mechanisms in the bent and flat energy band regions collectively contribute to the improved memory ***,the proposed ZrxSi1-xO2 with combining bent and flat energy bands should be a promising candidate for future nonvolatile memory applications,taking into consideration of the trade-off between the operation speed and retention characteristics.

关键词： nonvolatile memory bent and flat energy bands charge trapping memory capacitor

Theoretical study of bifurcated bent blue-shifted hydrogen bonds CH_2…Y

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Science China Chemistry 2008年第7期51卷 623-631页

作者： LI AnYong School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China School of Chemistry and Chemical Engineering Southwest University Chongqing China

Ab initio quantum chemistry methods were applied to study the bifurcated bent hydrogen bonds Y… H2CZ (Z = O, S, Se) and Y…H2CZ2 (Z = F, Cl, Br) (Y = Cl-, Br-) at the MP2/6-311++G(d,p) and MP2/6-311++G(2df,2p) levels. The results show that in each complex there are two equivalent blue-shifted H-bonds Y…H—C, and that the interaction energies and blue shifts are large, the energy of each Y…H—C H-bond is 15-27 kJ/mol, and Δr(CH) = -0.1 - -0.5 pm and Δv(CH) = 30 - 80 cm-1. The natural bond orbital analysis shows that these blue-shifted H-bonds are caused by three factors: large rehybridization; small direct intermolecular hyperconjugation and larger indirect intermolecular hy- perconjugation; large decrease of intramolecular hyperconjugation. The topological analysis of elec- tron density shows that in each complex there are three intermolecular critical points: there is one bond critical point between the acceptor atom Y and each hydrogen, and there is a ring critical point inside the tetragon YHCH, so these interactions are exactly H-bonding.

关键词： bifurcated bent H-bonds blue-shifted H-bonds topological property of electron density intramolecular hyperconjugation

Three Co(Ⅱ) Coordination Polymers Incorporated with a bent Connector: Crystal Structures and Magnetic Properties

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Chinese Journal of Structural Chemistry 2019年第4期38卷 587-596页

作者： LIU Han-Fu LI Hai-Ye YAO Peng-Fei SHU Chun-Yue HUANG Fu-Ping School of Chemistry and Pharmacy Guangxi Normal University College of Pharmacy Guilin Medical University

Based on the bent ligand 1 H-3-(3-pyridyl)-5-(4-pyridyl)-1,2,4-triazole(3,4?-Hbpt) with Co(Ⅱ) ions as well as a series of polycarboxylate co-ligands, three new coordination polymers were yielded, namely, {[Co(op)(3,4?-Hbpt)(H_2O)_3]?2 H_2O}n(1), [Co(cyc)(3,4′-Hbpt)(H_2O)]n(2) and [Co(pro)(3,4′-Hbpt)(H_2O)]n(3)(here, op = o-phthalic anion, cyc = 1,1-cyclobutanedicarboxylic anion, pro = propanedioic anion). In cooperation with the auxiliary polycarboxylate co-ligands, a variety of Co(Ⅱ) coordination networks, such as 1-D chain 1 and 2-D layer 2 and 3 have been assembled. The magnetic behaviors of compounds 1～3 were studied. All of them indicated the existence of interesting spin-canting behavior.

关键词： Co(Ⅱ) complexes bent connector spin canting behavior

I/O correlation properties of bent functions

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Science China(Technological Sciences) 2000年第3期43卷 282-286页

作者：张宝东吕述望 State Key Laboratory of Information Security Graduate School Chinese Academy of Sciences Beijing 100039 China

Let f( x1, x2, …, xn) be a Boolean bent function with n variables. The mutual information between the output variable and m linearly independent affine functions with respect to x1, x2, …, xn is studied. The results... 详细信息

关键词： bent function mutual information Walsh spectrum.

A relationship between the nonexistence of generalized bent functions and class groups

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Science China Mathematics 2010年第1期53卷 213-222页

作者： LIU FengMei 1,& YUE Qin 21 Department of Information Research,College of Information Engineering,Information Engineering University,Zhengzhou 450002,China 2 Department of Mathematics,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China Department of Information Research College of Information Engineering Information Engineering University Zhengzhou China Department of Mathematics Nanjing University of Aeronautics and Astronautics Nanjing China

A new result on the nonexistence of generalized bent functions is presented by using properties of the decomposition law of primes in cyclotomic fields and properties of solutions of some Diophantine equations. At the same time,a method is given which can be used to simplify the known results. Then we give the bounds and the meaning in algebraic number theory of the parameters in our results.

关键词： generalized bent function integral basis class group genus theory

GENERATING AND COUNTING A CLASS OF BINARY bent SEQUENCES WHICH IS NEITHER bent-BASED NOR LINEAR-BASED

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Chinese Science Bulletin 1992年第6期37卷 517-520页

作者：郭宝安蔡长年 Department of Telecommunications Engineering Beijing University of Posts and Telecommunications Beijing 100088 PRC

I. INTRODUCTION MacWilliams and Sloane listed as an open problem the classification of all bent functions of a given order. So far, there is not any satisfied method to construct all bent sequences. Adams and Tavares had done some useful research to generate and count binary bent sequences. In this note, we present a method of constructing a new class of binary bent se-

关键词： coding and cryptography Boolean function bent sequences

Comparison between Numerical and Experimental for UVP Measurement in Double bent Pipe with Out-of-Plane Angle

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Journal of Flow Control, Measurement & Visualization 2014年第4期2卷 154-164页

作者： Nobuyoshi Tsuzuki Treenuson Weerachon Hiroshige Kikura Research Laboratory for Nuclear Reactors Tokyo Institute of Technology Tokyo Japan

Twin vortices flow behavior with out-of-plane angle effect in double bent pipe system is studied numerically and experimentally. Double bent pipe system generates very complicated flow behavior including twin vortices in the downstream of the double bent. Moreover, angle from the plane of the double bent forms more complicated flow behavior due to the flow twist by out-of-plane angle. In this study, numerical analysis is examined for this double bent system using three-dimensional CFD code, FLUENT, to reproduce those complicated flow behaviors with twin vortices. Numerical results are compared with experimental results obtained by Ultrasonic Velocity Profiler (UVP). Discrepancy between numerical and experimental result is discussed changing out-of- plane angle, α. Velocity profiles obtained by numerical results are converted into UVP profiles, and they are compared with the experimental results by UVP. Consequently, velocity behavior especially around the pipe wall obtained by numerical results is agreed with experimental results.

关键词： Double bent Pipe Twin Vortices Vorticity Comparison Experimental Numerical CFD

New results on non-existence of generalized bent functions (Ⅱ)

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Science China Mathematics 2002年第6期45卷 721-730页

作者：刘凤梅马智冯克勤 The Graduate School at Beijing University of Science and Technology of China State Key Laboratory of Information Security Beiiing 100039 China

Several new results on non-existence of generalized bent functions are presented by using the class group of related imaginary abelian number fields.

关键词： generalized bent function, class group, imaginary abelian field.

Channeling in bent Crystallites: A New Method to Enhance the Radiation Shielding Efficiency

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Modern Instrumentation 2018年第3期7卷 35-41页

作者： Mukhtar Ahmed Rana Medical Equipment Research and Development Division (MERADD) ICCC Lahore Pakistan

A new method is proposed here aiming at designing a shielding wall with the efficiency significantly higher than that of traditional designs. This new design arises from the idea of using channeling in multilayered shielding wall structure, each layer composed of bent crystallites distributed in a way that each layer covers a small section of 2π angular range of which wall is exposed. Part of the incident charged particles will get channeled in bent crystallites in each layer. Bending of channeled particles in bent crystallites will change their directions in the wall increasing their path lengths in the wall which would enhance its shielding efficiency for charged particle radiations. Proposed design is useful for radiation shielding in fission power plants, future fusion reactors and air travel.

关键词： Radiation Shielding bent Crystals Channeling Nuclear and Thermonuclear Reactors Cosmic Rays

PROOF OF CHABAUD AND VAUDENAY'S ALMOST bent FUNCTIONS CONJECTURE

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Journal of Electronics(China) 1999年第4期16卷 380-381页

作者： Feng Dengguo Wang Haibin(State Key Laboratory of Information Security, Graduate School of USTC, Beijing 100039) (institute of Software of Chinese Academes of Sciences, Beijing 100080) State Key Laboratory of Information Security Graduate School of USTC Beijing Institute of Software of Chinese Academes of Sciences Beijing

This paper proves that the conjecture of Chabaud and Vandenay(Proc. Euro-crypt’94) is right.

关键词： Cryptography Almost bent functions