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Uncertainty relations based on Wigner-Yanase skew information

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Communications in Theoretical Physics 2020年第7期72卷 30-35页

作者： Xiaofen Huang Tinggui Zhang Naihuan Jing School of Mathematics and Statistics Hainan Normal UniversityHaikou571158China Department of Mathematics Shanghai UniversityShanghai 200444China Department of Mathematics North Carolina State UniversityRaleighNC 27695United States of America

In this paper,we use certain norm inequalities to obtain new uncertain relations based on the Wigner-Yanase skew information.First for an arbitrary finite number of observables we derive an uncertainty relation outperforming previous lower bounds.We then propose new weighted uncertainty relations for two noncompatible observables.Two separable criteria via skew information are also obtained.

关键词： uncertainty relations skew information entanglement

von Neumann measurement-related matrices and the nullity condition for quantum correlation

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Science China(Physics,Mechanics & Astronomy) 2016年第12期59卷 27-32页

作者： MingJing Zhao Teng Ma Tinggui Zhang Shao-Ming Fei School of Science Beijing Information Science and Technology UniversityBeijing 100192China State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing 100084China School of Mathematics and Statistics Hainan Normal UniversityHaikou 571158China School of Mathematical Sciences Capital Normal UniversityBeijing 100048China Max-Planck-Institute for Mathematics in the Sciences Leipzig 04103Germany

We study von Neumann measurement-related matrices, and the nullity condition of quantum correlation. We investigate the properties of these matrices that are related to a von Neumann measurement. It is shown that these(m^2-1)×(m^2-1) matrices are idempotent, and have rank m-1. These properties give rise to necessary conditions for the nullity of quantum correlations in bipartite systems. Finally, as an example we discuss quantum correlation in Bell diagonal states.

关键词： von Neumann measurement matrix rank quantum correlation

Generating routes for autonomous driving in vehicle-to-infrastructure communications

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Digital Communications and Networks 2020年第4期6卷 444-451页

作者： Jianjun Yang tinggui Chen Bryson Payne Ping Guo Yanping zhang Juan Guo Department of Computer Science and Information Systems University of North GeorgiaOakwood30566USA Zhejiang Gongshang University HangzhouChina Department of Computer Science and Information Systems University of North GeorgiaDahlonega30597USA Department of Computer Science University of Illinois at SpringfieldSpringfieldILUSA Department of Computer Science Gonzaga UniversitySpokaneWAUSA

The study of vehicular networks has attracted considerable interest in academia and the industry.In the broad area,connected vehicles and autonomous driving are technologies based on wireless data communication between vehicles or between vehicles and infrastructures.A Vehicle-to-Infrastructure(V2I)system consists of communications and computing over vehicles and related infrastructures.In such a system,wireless sensors are installed in some selected points along roads or driving areas.In autonomous driving,it is crucial for a vehicle to figure out the ideal routes by the communications between its equipped sensors and infrastructures then the vehicle is automatically moving along the routes.In this paper,we propose a Bezier curve based recursive algorithm,which effectively creates routes for vehicles through the communication between the On-Board Unit(OBU)and the Road-Side Units(RSUs).In addition,this approach generates a very low overhead.We conduct simulations to test the proposed algorithm in various situations.The experiment results demonstrate that our algorithm creates almost ideal routes.

关键词： Autonomous driving Vehicles and infrastructures Bezier curve Recursive algorithm On board unit Road side unit

高抽巷抽采条件对采空区氧化带扰动效应数值模拟研究

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煤炭技术 2023年第10期42卷 113-118页

作者：贾廷贵张铎内蒙古科技大学矿业与煤炭学院内蒙古包头014010

为了研究高抽巷抽采对采空区氧化带的扰动效应,运用Fluent软件研究设置高抽巷、不同抽采负压及不同高抽巷位置对采空区氧化带分布的扰动规律。模拟结果表明:设置高抽巷会大幅增加回风侧的氧气浓度,使得采空区自然发火概率增大;抽采负压... 详细信息

为了研究高抽巷抽采对采空区氧化带的扰动效应,运用Fluent软件研究设置高抽巷、不同抽采负压及不同高抽巷位置对采空区氧化带分布的扰动规律。模拟结果表明:设置高抽巷会大幅增加回风侧的氧气浓度,使得采空区自然发火概率增大;抽采负压增加与进风侧氧化带距工作面距离及回风侧氧化带宽度存在正相关关系;三维空间内高抽巷位置距离回风侧越近对氧化自燃带的扰动影响越大。在满足抽采要求的前提下,适当减小抽采负压并增加高抽巷与回风侧的空间距离可以一定程度内减少采空区自燃灾害的发生。

关键词：高抽巷采空区氧化带数值模拟

基于网络药理学探讨连翘脂素减肥靶标及作用机制

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山西大学学报(自然科学版) 2023年第4期46卷 928-940页

作者：纪思慧张立伟陈廷贵山西大学分子科学研究所化学生物学与分子工程教育部重点实验室

文章利用网络药理学研究连翘脂素潜在减肥靶标及作用机制。首先通过PharmMapper筛选连翘脂素相关靶标，GnenCards筛选肥胖相关靶标，绘制venn图，共筛选到219个连翘脂素减肥相关靶标。其次通过String平台和Cytoscape 3.6.0构建靶标间相... 详细信息

文章利用网络药理学研究连翘脂素潜在减肥靶标及作用机制。首先通过PharmMapper筛选连翘脂素相关靶标，GnenCards筛选肥胖相关靶标，绘制venn图，共筛选到219个连翘脂素减肥相关靶标。其次通过String平台和Cytoscape 3.6.0构建靶标间相互作用网络图、进行可视化分析并筛选核心靶标，包括ALB、AKT1、MAPK1、EGFR、HRAS、CASP3、SRC、IGF-1、MAPK8、ESR1，其它靶标还包括JAK2、CDC42、NQO2、DHFR等。然后利用DAVID6.8进行GO功能富集分析和KEGG通路分析，GO功能富集涉及811个条目，KEGG通路分析得到111条信号通路，主要包括癌症通路、胰岛素信号通路、MAPK信号通路、ErbB信号通路、黏附斑等。最后利用分子模拟技术对连翘脂素减肥相关靶标进行验证，证明连翘脂素与ALB、AKT1、EGFR、HRAS、CASP3、SRC、IGF-1、MAPK8等都有较好的结合活性（结合能小于-5 kcal/mol）。研究通过对成分-靶标-疾病网络分析，从多靶标、多通路阐释了连翘脂素潜在减肥作用机制，为后续深入研究提供了理论依据。

关键词：连翘脂素肥胖网络药理学靶标分子对接

Quantum legitimacy of reversible gate and a new design of multiplier based on R gate

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Chinese Physics B 2020年第5期29卷 101-106页

作者：葛庭宇张廷桂黄晓芬 School of Mathematics and Statistics Hainan Normal UniversityHaikou 571158China

Quantum full adders play a key role in the design of quantum computers.The efficiency of a quantum adder directly determines the speed of the quantum computer,and its complexity is closely related to the difficulty and the cost of building a quantum computer.The existed full adder based on R gate is a great design but it is not suitable to construct a quantum multiplier.We show the quantum legitimacy of some common reversible gates,then use R gate to propose a new design of a quantum full adder.We utilize the new designed quantum full adder to optimize the quantum multiplier which is based on R gate.It is shown that the new designed one can be optimized by a local optimization rule so that it will have lower quantum cost than before.

关键词： reversible gate quantum full adder quantum multiplier

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实数的稠密性

海南师范大学学报（自然科学版） 2015年第4期28卷 372-374页

作者：张廷桂海南师范大学数学与统计学院海南海口571158

实数的稠密性最简单的描述是任意两个不等的实数之间都有无限个其它实数.这个命题的证明是简单的.但是实数的稠密性的另一个含义,即任意两个不等的有理数之间都有无限个无理数,任意两个不等的无理数之间都有无限个有理数,确不容易显式... 详细信息

实数的稠密性最简单的描述是任意两个不等的实数之间都有无限个其它实数.这个命题的证明是简单的.但是实数的稠密性的另一个含义,即任意两个不等的有理数之间都有无限个无理数,任意两个不等的无理数之间都有无限个有理数,确不容易显式的证明.文章利用实数的十进制表示来详细地证明这个事实.

关键词：有理数无理数实数

A Possible 250s X-Ray Quasi-periodicity in the Fast Blue Optical Transient AT2018cow

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Research in Astronomy and Astrophysics 2022年第12期22卷 299-310页

作者： Wenjie zhang Xinwen Shu Jin-Hong Chen Luming Sun Rong-Feng Shen Lian Tao Chun Chen Ning Jiang Liming Dou Ying Qin Xue-Guang zhang Liang zhang Jinlu Qu tinggui Wang Department of Physics Anhui Normal UniversityWuhu 241002China School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai 519082China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of ScienceBeijing 100049China CAS Key Laboratory for Researches in Galaxies and Cosmology Department of AstronomyUniversity of Science and Technology of ChinaHefei 230026China Department of Astronomy Guangzhou UniversityGuangzhou 510006China School of Physics and Technology Nanjing Normal UniversityNanjing 210023China

The fast blue optical transients(FBOTs)are a new population of extragalactic transients of unclear physical origin.A variety of mechanisms has been proposed including failed supernova explosion,shock interaction with a dense medium,young magnetar,accretion onto a compact object and stellar tidal disruption event,but none is conclusive.Here we report the discovery of a possible X-ray quasi-periodicity signal with a period of~250 s(at a significance level of 99.76%)in the brightest FBOT AT2018cow through the analysis of XMM-Newton/PN data.The signal is independently detected at the same frequency in the average power density spectrum from data taken from the Swift telescope,with observations covering from 6 to 37 days after the optical discovery,though the significance level is lower(94.26%).This suggests that the quasi-periodic oscillation(QPO)frequency may be stable over at least 1.1×10^(4)cycles.Assuming the~250 s QPO to be a scaled-down analog of that typically seen in stellar mass black holes,a black hole mass of~103–10^(5)solar masses could be inferred.The overall X-ray luminosity evolution could be modeled with a stellar tidal disruption by a black hole of~10^(4)solar masses,providing a viable mechanism to produce AT2018cow.Our findings suggest that other bright FBOTs may also harbor intermediate-mass black holes.

关键词： black hole physics X-rays:individual(AT2018cow) X-rays:bursts

核用陶瓷光固化3D打印工艺及抗热震性能研究

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原子能科学技术 2023年第S01期57卷 139-147页

作者：赵朗朗张勤唐军司书尧杨廷贵姜岳峰中核四0四有限公司科学技术研究院甘肃兰州732850 中核四0四成都核技术工程设计研究院有限公司四川成都610000

为提高精密铸造效率,缩短陶瓷模具制造周期,本文采用基于面曝光的光固化(DLP)3D打印技术制备了适用于铸造特种材料部件的Al_(2)O_(3)、ZrO_(2)和MgO模具。光敏树脂与纳米级陶瓷粉体混合成的陶瓷浆料通过紫外光固化后形成陶瓷生坯,经过... 详细信息

为提高精密铸造效率,缩短陶瓷模具制造周期,本文采用基于面曝光的光固化(DLP)3D打印技术制备了适用于铸造特种材料部件的Al_(2)O_(3)、ZrO_(2)和MgO模具。光敏树脂与纳米级陶瓷粉体混合成的陶瓷浆料通过紫外光固化后形成陶瓷生坯,经过干燥、脱脂和烧结处理得到所需陶瓷样件。利用SEM对烧结前后的陶瓷进行了微观组织表征,并对光固化3D打印陶瓷样件进行了力学性能(压缩和弯曲)和抗热震性能测试。结果表明,陶瓷生坯经过适当温度烧结后,组织由多孔结构变致密。光固化3D打印陶瓷的压缩和弯曲强度均可达到等静压工艺水平。通过抗热震性能测试,光固化3D打印陶瓷展现出良好的抗热震性能,其中ZrO_(2)陶瓷在800℃和1300℃条件下的性能最优。光固化3D打印技术在制备结构功能复杂的陶瓷部件方面展现出巨大优势,可大幅减少制造周期与成本,为核能领域高精尖产品制造提供重要的技术支撑。

关键词：陶瓷光固化3D打印压缩强度弯曲强度抗热震性能