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Optimizing scheme for probabilistic remote preparation of a two-qubit state

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The Journal of China Universities of Posts and Telecommunications 2013年第6期20卷 109-116页

作者： XIA Jia-fan ZHA xin-wei School of Science Xi'an University of Posts and Telecommunications

Remote state preparation is increasingly becoming attractive in recent years, people have already started theoretical and experimental research, and have made valuable research results. Recently, a scheme for probabilistic remote preparation of a general two-qubit state was proposed （Wang Z Y in Quantum Inf Process. 11：1585, 2012））. In this paper, we present a modified scheme for probabilistic remote preparation of a general two-qubit state. To complete the scheme, the new and feasible complete orthogonal basis vectors have been introduced. Compared with the previous schemes, the advantage of our schemes is that the total success probability of remote state preparation will be greatly improved. The probability of success regarding this scheme is calculated in both general and particular cases. The results show that the success probability of remote state preparation can be improved a little. However, in certain special cases, the success probability of preparation can be greatly improved. In special cases, the success probability of preparation can be improved to 1. The security analysis of the scheme is provided in details.

关键词： remote state preparation w-type state orthogonal basis vector success probability of preparation

Numerical study of the natural frequency and mode shape of prototype Francis turbine runner

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Journal of Hydrodynamics 2022年第1期34卷 125-134页

作者： wei Wang ling-jiu Zhou Xiang Xia Xi-jie Song Zheng-wei Wang Department of Energy and Power Engineering Tsinghua UniversityBeijing100084China College of Water Resources and Civil Engineering China Agricultural UniversityBeijing100083China

The prediction of the dynamic behavior of the structure is a key to ensure the safe and stable operation of the *** this paper,the acoustic fluid-structure coupling method is used to study the natural frequency and the mode shape of the prototype Francis turbine *** an added mass,the natural frequency of the runner in the water is *** added mass force mc is reduced under the cavitation,resulting in an increase of the natural frequency,but it is still much lower than the frequency in the *** the order number of the runner mode increases,the added mass force increases,and the frequency reduction rate *** 0ND to 4ND,the nodal lines on the upper crown of the runner gradually disappear,and the mode shape becomes more *** modal displacement D*in the circumferential direction of the runner and the outlet edge of the blade are selected to compare the structural mode shapes under different operating *** results show that the amplitude of D*in the circumferential direction of the runner gradually increases from the upper crown to the lower band of the runner,and the curve assumes a symmetrical distribution of sinusoidal waves,whose number is twice of that of the nodal lines of the *** D*value changes are caused by the added mass in the water,and it will further change under the cavitation *** means that the vibration form of the structure has *** will cause damages to the runner under the resonance conditions at different positions and in different degrees.

关键词： Runner natural frequencies mode shapes modal displacements acoustic fluid-structure coupling method

马克思现代性批判视域下泛娱乐主义的演进、危害与矫正

维普期刊数据库评论

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湖北第二师范学院学报 2024年第6期41卷 10-16页

作者：周小龙宋新伟新疆师范大学马克思主义学院乌鲁木齐830017 铜陵学院法学院安徽铜陵244061

泛娱乐主义作为近年来影响广泛的社会思潮,消解冲击大众正确的思想道德观念,诱使大众陷入娱乐主义和消费主义陷阱,并不断挤占大众的劳动时间与自由时间,使大众日渐沉迷于“娱乐幻象”“信息茧房”之中。从马克思现代性批判视域下探究泛... 详细信息

泛娱乐主义作为近年来影响广泛的社会思潮,消解冲击大众正确的思想道德观念,诱使大众陷入娱乐主义和消费主义陷阱,并不断挤占大众的劳动时间与自由时间,使大众日渐沉迷于“娱乐幻象”“信息茧房”之中。从马克思现代性批判视域下探究泛娱乐主义的演进历程与现实危害,可以发现泛娱乐主义根植于资本主义现代性,是资本逻辑捆绑和现代科技异化的产物。当前,矫正泛娱乐主义,需立足马克思现代性批判理论,在现实中破除资本逻辑、规范科学技术、抵制“娱乐鸦片”,坚持以人民至上,以法律手段监管网络平台,以辛勤劳动充实精神世界,从而实现对泛娱乐主义的祛魅。

关键词：马克思现代性批判泛娱乐主义意识形态

Low-energy inelastic electron scattering from carbon monoxide:Excitation and de-excitation of the X^(1)Σ^(+),a^(3)Π,a'^(3)∑^(+),A^(1)Π,d^(3)Δ,e^(3)∑^(-),I^(1)∑^(-)and D^(1)Δelectronic states

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Chinese Physics B 2024年第4期33卷 444-450页

作者：卫鹏宇黄朝文程新路张红 Institute of Atomic and Molecular Physics Sichuan UniversityChengdu 610065China College of Physics Sichuan UniversityChengdu 610065China

Cross-sections for electronic excitation and de-excitation among the ground state and lowest-lying seven electronic excited states of carbon monoxide(CO)by low-energy electron impact are computed using the R-matrix *** excitation cross-sections from the ground state to the electronic states a^(3)Π,a'^(3)Σ^(+)+and A^(1)Πagree with previous experimental and theoretical *** addition,the cross-sections for the I^(1)Σ^(+)-and D^(1)Δstates of CO,which will cascade to CO a'^(3)Σ^(+)+and A^(1)Πstates,are ***,in contrast to the typical increase in electronic excitation cross-sections with collision energy,the de-excitation cross-sections show a negative trend with increasing energy.

关键词： electron-CO collision electronic excitation cross-sections R-matrix method

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增材制造自支撑设计综述

中国激光 2024年第10期51卷 114-137页

作者：魏伟吴海鑫吴晓萱吴金斗龙雨广西大学省部共建特色金属材料与组合结构全寿命安全国家重点实验室广西南宁530004 广西大学机械工程学院激光智能制造与精密加工研究所广西南宁530004

增材制造(AM)的零件若存在悬垂部件,则往往需要添加额外的支撑结构,这不仅会影响打印效率,而且拆除支撑也会引发新的问题。结构自支撑设计能使增材制造摆脱对支撑结构的依赖,现已成为国内外的研究热点。本文首先总结了增材制造结构自支... 详细信息

增材制造(AM)的零件若存在悬垂部件,则往往需要添加额外的支撑结构,这不仅会影响打印效率,而且拆除支撑也会引发新的问题。结构自支撑设计能使增材制造摆脱对支撑结构的依赖,现已成为国内外的研究热点。本文首先总结了增材制造结构自支撑设计的原理,接着综述了增材制造零件整体结构自支撑设计的研究进展以及增材制造填充结构自支撑设计的研究进展。其中,根据不同的结构优化方式,将增材制造零件整体结构自支撑设计进一步划分为基于连续体结构拓扑优化、离散结构拓扑优化和形状优化的结构自支撑设计,并分析了各类优化方法的优缺点。最后,讨论了提升计算效率以及提升结构性能的解决方案,并对未来的应用场景以及未来的研究重点进行了展望。

关键词：增材制造结构优化拓扑优化填充结构结构自支撑

光化学氧化对深圳市含黑碳气溶胶混合态和光吸收的影响

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中国环境科学 2024年第6期44卷 2970-2976页

作者：彭妍林晓玉谢婷婷魏静李征宇何凌燕黄晓锋北京大学深圳研究生院环境与能源学院大气观测超级站实验室广东深圳518055

于2021年2月在深圳开展了含黑碳气溶胶混合态和光学性质的测量,结合奇氧数(Ox)的同步分析,以探究光化学氧化对城市大气中含黑碳气溶胶包裹物、形貌与光吸收能力的影响.结果表明:观测期间黑碳颗粒群平均相对包裹物量(包裹物与黑碳核质量... 详细信息

于2021年2月在深圳开展了含黑碳气溶胶混合态和光学性质的测量,结合奇氧数(Ox)的同步分析,以探究光化学氧化对城市大气中含黑碳气溶胶包裹物、形貌与光吸收能力的影响.结果表明:观测期间黑碳颗粒群平均相对包裹物量(包裹物与黑碳核质量比,MR)平均值为4.3±0.7,有效密度平均值为(1.35±0.10)g/cm^(3),整体颗粒群形貌为球形的观测时段占比为70%,表明深圳城市点含黑碳气溶胶主要为中等不规则形貌的内部混合态颗粒.光化学氧化在含黑碳气溶胶混合态演变过程中起到重要作用.随着Ox的增加,颗粒群平均MR增幅约为38%,平均有效密度从1.32g/cm^(3)增至1.44g/cm^(3),动力学形状因子从1.05递减至1.00,表明光化学氧化过程促使非黑碳组分累积并使颗粒趋向于形成更致密的核壳球形.此外,Ox增加过程中,吸光增强(Eabs)增幅约为20%,增长速率为0.002/10-9,表明光化学氧化对城市点含黑碳气溶胶光吸收起到关键的驱动作用.

关键词：光化学氧化含黑碳气溶胶混合态吸光性

硒代蛋氨酸的生物学功能及其在畜禽生产中的应用

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动物营养学报 2024年第4期36卷 2155-2162页

作者：唐煌尧魏浩张伟贾刚四川农业大学动物营养研究所动物抗病营养教育部重点实验室成都611130 四川新一美生物科技有限公司绵阳622650

硒代蛋氨酸(Se-Met)是动物从植物性饲料原料中获取硒的主要形式,具有抗氧化、抗炎、抗病毒等多种生物学功能,在提高畜禽生产性能、改善畜产品品质、缓解畜禽应激等方面发挥着积极作用。本文通过分析近年来国内外文献,对硒代蛋氨酸的抗... 详细信息

硒代蛋氨酸(Se-Met)是动物从植物性饲料原料中获取硒的主要形式,具有抗氧化、抗炎、抗病毒等多种生物学功能,在提高畜禽生产性能、改善畜产品品质、缓解畜禽应激等方面发挥着积极作用。本文通过分析近年来国内外文献,对硒代蛋氨酸的抗氧化、抗炎、抗病毒等主要生物学功能、作用机理及其在畜禽生产中的应用概况进行综述,旨在为硒代蛋氨酸在畜禽生产中的高效应用提供参考依据。

关键词：硒代蛋氨酸生物学功能畜禽生产作用机理

Aryl hydrocarbon receptor:Linking environment to aging process in elderly patients with asthma

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Chinese Medical Journal 2024年第4期137卷 382-393页

作者： Tianrui Yang Rongjun Wan wei Tu Sai Nithin Avvaru Peisong Gao Division of Allergy and Clinical Immunology Department of MedicineJohns Hopkins University School of MedicineBaltimoreMD 21224USA Department of Geriatric Medicine The First People’s Hospital of Yunnan ProvinceKunmingYunnan 650032China Department of Respiratory Medicine Xiangya HospitalCentral South UniversityChangshaHunan 410008China The State Key Laboratory of Respiratory Disease for Allergy Shenzhen Key Laboratory of Allergy and ImmunologyShenzhen University School of MedicineShenzhenGuangdong 518055China

Aging is a significant risk factor for various diseases,including asthma,and it often leads to poorer clinical outcomes,particularly in elderly *** is recognized that age-related diseases are due to a time-dependent accumulation of cellular damage,resulting in a progressive decline in cellular and physiological functions and an increased susceptibility to chronic *** effects of aging affect not only the elderly but also those of younger ages,posing significant challenges to global ***,understanding the molecular mechanisms associated with aging in different diseases is *** intriguing factor is the aryl hydrocarbon receptor(AhR),which serves as a cytoplasmic receptor and ligand-activated transcription factor and has been linked to the aging ***,we review the literature on several major hallmarks of aging,including mitochondrial dysfunction,cellular senescence,autophagy,mitophagy,epigenetic alterations,and microbiome ***,we provide an overview of the impact of AhR on these hallmarks by mediating responses to environmental exposures,particularly in relation to the immune ***,we explore how aging hallmarks affect clinical characteristics,inflammatory features,exacerbations,and the treatment of *** is suggested that AhR signaling may potentially play a role in regulating asthma phenotypes in elderly populations as part of the aging process.

关键词： Aging Environment Reactive oxygen species Senescence Aryl hydrocarbon receptor Asthma

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100 mK以下二级绝热去磁制冷机的研究

工程热物理学报 2024年第2期45卷 319-323页

作者：金海姜春阳沈俊戴巍崔伟中国科学院理化技术研究所北京100190 中国科学院大学北京100864 清华大学天文系北京100084

超导转变边缘传感器(TES)、动能感抗传感器(KIDS)等高性能低温探测技术日渐成熟,为天文学家解决“重子缺失”、原初引力波观测等关键科学问题提供了契机。这些低温传感器需要在极低温工作(300 mK以下)才能实现其高灵敏度。作为获得极低... 详细信息

超导转变边缘传感器(TES)、动能感抗传感器(KIDS)等高性能低温探测技术日渐成熟,为天文学家解决“重子缺失”、原初引力波观测等关键科学问题提供了契机。这些低温传感器需要在极低温工作(300 mK以下)才能实现其高灵敏度。作为获得极低温的重要方法之一,绝热去磁制冷机(ADR)非常适合冷却这类高性能低温探测器。本文描述了一台二级绝热去磁制冷机,介绍了低温级顺磁盐工质FAA的制备方法。在初步测试中该制冷机低温级可获得100 mK以下极低温,为后续研究工作打下基础。

关键词：极低温顺磁盐绝热去磁