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Symmetric private information retrieval supported by quantum-secure key-exchange network

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Light(Science & Applications) 2022年第11期11卷 2556-2557页

作者： shuang wang Author details'CAS Key Laboratory of Quantum Information University of Science and Technology of China230026 HefeiChina CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of China230026 HefeiChina Hefei National Laboratory University of Science and Technology of China230088 HefeiChina

Quantum key distribution provides a provably secure *** private key distribution,which enables the practical implementation of information retrieval that preserves both the user privacy and database security.

关键词： database network exchange

环状RNA CHACR调控压力超负荷诱导心肌肥大和氧化应激损伤

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中国组织工程研究 2025年第25期29卷 5362-5373页

作者：王霜韩瑜袁敏曹济民孙腾山西医科大学细胞生理学教育部重点实验室山西省细胞生理学重点实验室山西医科大学基础医学院生理学系山西省太原市030001

背景:病理性心肌肥大是多种心脏疾病的危险促进因素,但其发病机制仍未阐明。环状RNA与心肌肥大密切相关,然而环状RNA CHACR在心肌肥大中的作用及调控机制尚未见报道。目的:探究环状RNA CHACR在压力超负荷诱导心肌肥大中的作用及机制。方... 详细信息

背景:病理性心肌肥大是多种心脏疾病的危险促进因素,但其发病机制仍未阐明。环状RNA与心肌肥大密切相关,然而环状RNA CHACR在心肌肥大中的作用及调控机制尚未见报道。目的:探究环状RNA CHACR在压力超负荷诱导心肌肥大中的作用及机制。方法:①心脏原位注射环状RNA CHACR过表达慢病毒1周后进行横向主动脉缩窄手术诱导小鼠心肌肥大。术后8周,计算心脏质量/胫骨长比值和肺质量/胫骨长比值,测量心肌细胞表面积,检测肥大标志基因表达水平和心肌纤维化程度,评估心功能。②H9c2心肌细胞给予环状RNA CHACR过表达慢病毒处理72 h,然后加入1μmol/L血管紧张素Ⅱ处理24 h诱导心肌细胞肥大。通过检测心肌细胞表面积、肥大标志基因表达水平、蛋白质/DNA比值评估细胞肥大情况,通过检测活性氧水平和线粒体膜电位评估氧化应激损伤情况。结果与结论:①在体内和体外心肌肥大模型中,环状RNA CHACR的表达水平均显著降低(P<0.01);②过表达环状RNA CHACR显著抑制了横向主动脉缩窄手术诱导的小鼠心肌肥大表型,主要表现为心脏体积减小、心脏质量/胫骨长比值显著降低(P<0.05),肺质量/胫骨长比值显著降低(P<0.05),心肌细胞表面积显著减小(P<0.05),以及心肌肥大相关标志基因心房利钠肽(P<0.05)、脑钠肽(P<0.05)表达水平降低;③过表达环状RNA CHACR显著抑制了横向主动脉缩窄手术诱导的小鼠心脏纤维化,表现为纤维化面积减小(P<0.01)和纤维化标志基因Acta1的表达水平降低(P<0.05);④过表达环状RNA CHACR显著改善了小鼠心功能,主要表现为射血分数(P<0.05)和短轴缩短率(P<0.01)显著升高;(5)过表达环状RNA CHACR显著抑制了血管紧张素Ⅱ诱导的心肌细胞肥大,主要表现为心肌细胞表面积显著减小(P<0.05),心房利钠肽(P<0.05)和脑钠肽(P<0.05)表达水平显著下调,以及蛋白质/DNA比值显著减小(P<0.05);(6)过表达环状RNA CHACR显著抑制了血管紧张素Ⅱ诱导的活性氧水平升高(P<0.001)和线粒体膜电位降低(P<0.05)。结果表明,环状RNA CHACR在体内和体外心肌肥大模型中表达水平显著降低,过表达环状RNA CHACR显著抑制心肌肥大,减轻心肌纤维化,改善心功能,并且显著减轻了血管紧张素Ⅱ诱导的心肌细胞氧化应激损伤。

关键词：心肌肥大环状RNA CHACR 血管紧张素Ⅱ 横向主动脉缩窄手术氧化应激损伤

Diagnosing ΛHDE model with statefinder hierarchy and fractional growth parameter

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Science China(Physics,Mechanics & Astronomy) 2016年第7期59卷 14-19页

作者： LanJun Zhou shuang wang Institute of Theoretical Physics Chinese Academy of Sciences Beijing 100190 China School of Astronomy and Space Science Sun Yat-Sen University Guangzhou 510275 China

Recently, a new dark energy model called AHDE was proposed. In this model, dark energy consists of two parts： cosmological constant A and holographic dark energy （HDE）. Two key parameters of this model are the fractional density of cosmological constant Ω2A0, and the dimensionless HDE parameter c. Since these two parameters determine the dynamical properties of DE and the destiny of universe, it is important to study the impacts of different values of ΩA0 and c on the AHDE model. In this paper, we apply various DE diagnostic tools to diagnose AHDE models with different values of ΩA0 and c; these tools include statefinder hierarchy {S3^（1） ,S4（1）fractional growth parameter E, and composite null diagnostic （CND）, which is a combination of{S3（1）,S4（1）} and E. We find that：（1） adopting different values of ΩA0 only has quantitative impacts on the evolution of the AHDE model, while adopting different c has qualitative impacts; （2） compared with S（1）, S（41） can give larger differences among the cosmic evolutions of the AHDE model associated with different ΩA0 or different c; （3） compared with the case of using a single diagnostic, adopting a CND pair has much stronger ability to diagnose the AHDE model.

关键词： dark energy cosmology cosmological constant

Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w′pair

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Science China(Physics,Mechanics & Astronomy) 2018年第3期61卷 65-76页

作者： Ze Zhao shuang wang CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Physical Science University of Chinese Academy of Sciences School of Astronomy and Space Science Sun Yat-Sen University

The main purpose of this work is to distinguish various holographic type dark energy （DE） models, including the AHDE, HDE, NADE, and RDE model, by using various diagnostic tools. The first diagnostic tool is the Statefinder hierarchy, in which the evolution of Statefinder hierarchy parmeter S3（1）（z） and S4（1）（z） are studied. The second is composite null diagnostic （CND）, in which the trajectories of {S（1）4, ∈} and {S4（1）, e} are investigated, where ∈ is the fractional growth parameter. The last is w-w′ analysis, where w is the equation of state for DE and the prime denotes derivative with respect to lna. In the analysis we consider two cases： varying current fractional DE density Ωde0 and varying DE model parameter C. We find that：（1） both the Statefinder S4（1） can lead to larger hierarchy and the CND have qualitative impact on AHDE, but only have quantitative impact on HDE. （2） S4（1） differences than S 4（1）, while the CND pair has a stronger ability to distinguish different models than the Statefinder hierarchy. （3） For the case of varying C, the {w, w′} pair has qualitative impact on AHDE; for the case of varying Ωde0, the {w, w′} pair only has quantitative impact; these results are different from the cases of HDE, RDE, and NADE, in which the {w, w′} pair only has quantitative impact on these models. In conclusion, compared with HDE, RDE, and NADE, the AHDE model can be easily distinguished by using these diagnostic tools.

关键词： dark energy cosmology cosmological constant

Fault deformation anomaly and intermedi-ate and short-term prediction of the Jingtai Ms=5.9 earthquake

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Acta Seismologica Sinica(English Edition) 2001年第2期14卷 156-165页

作者： wang shuang-xu The Second Crustal Deformation Monitoring Center China Seismological Bureau Xi’an China

The time-space distribution characteristics of fault deformation anomaly in the near-source region and its outlying zone in the seismogenic process of the Jingtai Ms=5.9 earthquake occurred on June 6, 2000 in Gansu Province is studied preliminary. The distribution scope of fault deformation anomaly before the earthquake is wide, the anomaly shape is complicated and the pattern anomalous zone of fault deformation (strain) information index is obvious. The shape and amplitude of fault deformation anomaly in different regions differ significantly, which is closely related with the tectonic location of anomaly. The fault deformation anomaly of α β, and γ phases along the western segment of Haiyuan fault zone shows the process from the quasi-linearity to non-linearity of fault movement in the near-source region, matches the high-value anomalous area of fault deformation (strain) information index, and reflects the high strain accumulation in the seismogenic region. However, the anomaly of abrupt jump and cusp with a large amplitude occurred in the areas far from the earthquake, such as Liupanshan fault zone which is the tectonic convergent section does not reflect the strain accumulation of its location, maybe it is a sign that the regional tectonic stress field is strengthened in the seismogenic process. Based on the above-mentioned facts and combined with the preliminary summary of experiences and lessons in the intermediate and short-term prediction of the Jingtai Ms=5.9 earthquake, we study and explore the application of fault deformation anomaly to earthquake judgment.

关键词： Anomaly characteristics Fault deformation Intermediate and short-term earthquake prediction Jingtai Ms=5.9 earthquake

Theoretical aspects of holographic dark energy

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Communications in Theoretical Physics 2023年第11期75卷 162-174页

作者： shuang wang Miao Li School of Physics and Astronomy Sun Yat-Sen UniversityZhuhaiChina

We review the theoretical aspects of holographic dark energy(HDE)in this *** use of the holographic principle(HP)and the dimensional analysis,we derive the core formula of the original HDE(OHDE)model,in which the future event horizon is chosen as the characteristic length ***,we describe the basic properties and the corresponding theoretical studies of the OHDE model,as well as the effect of adding dark sector interaction in the OHDE ***,we introduce all four types of HDE models that originate from HP,including(1)HDE models with the other characteristic length scale;(2)HDE models with extended Hubble scale;(3)HDE models with dark sector interaction;(4)HDE models with modified black hole ***,we introduce the well-known Hubble tension problem,as well as the attempts to alleviate this problem under the framework of *** the perspective of theory,the core formula of HDE is obtained by combining the HP and the dimensional analysis,instead of adding a DE term into the ***,HDE remarkably differs from any other theory of *** the perspective of observation,HDE can fit various astronomical data well and has the potential to alleviate the Hubble tension *** features make HDE a very competitive dark energy scenario.

关键词： holographic principle dark energy holographic dark energy

Discrete element method for high-temperature spread in compacted powder systems

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Particuology 2017年第2期15卷 49-53页

作者： shuang wang Zhoushun Zheng School of Science ShandongJianzhu University Jinan 250101 China School of Mathematics and Statistics Central South University Changsha 410083 China

The discrete element method is applied to investigate high-temperature spread in compacted metallic particle systems formed by high-velocity compaction. Assuming that heat transfer only occurs at contact zone between particles, a discrete equation based on continuum mechanics is proposed to investigate the heat flux. Heat generated internally by friction between moving particles is determined by kinetic equations. For the proposed model, numerical results are obtained by a particle-flow-code-based program. Temperature profiles are determined at different locations and times. At a fixed location, the increase in temperature shows a logarithmic relationship with time. Investigation of three different systems indicates that the geometric distribution of the particulate material is one of the main influencing factors for the heat conduction process. Higher temperature is generated for denser packing, and vice versa. For smaller uniform particles, heat transfers more rapidly.

关键词： Discrete element method Heat conduction Friction heat Numerical simulation

Exploring the latest Pantheon SN Ia dataset by using three kinds of statistics techniques

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Communications in Theoretical Physics 2021年第4期73卷 92-98页

作者： shuang wang Xiaolin Luo School of Physics and Astronomy Sun Yat-Sen UniversityGuangzhou 510297China

In this work,we explore the cosmological consequences of the latest Type Ia supernova(SN Ia)dataset,Pantheon,by adopting the wCDM *** Pantheon dataset currently contains the largest number of SN Ia samples,which conta... 详细信息

关键词： Dark Energy Type Ia supernova Cosmological Observations

Research progress on the luminescence of biomacromolecules

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Journal of Materials Science & Technology 2021年第17期76卷 60-75页

作者： Dandan wang Junping Ju shuang wang Yeqiang Tan State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile TechnologyInstitute of Marine Biobased MaterialsCollege of Materials Science and EngineeringQingdao UniversityQingdao266071China

Luminescent materials show great potential in various *** aggregation-induced emission(AIE)luminogens are mostly produced by complex organic synthesis and have poor hydrophilicity and biocompatibility,which limit their practical ***,it is of great significance to develop fluorescent materials with good hydrophilicity and biocompatibility,and biomacromolecules with these properties have attracted our *** biomacromolecules can generate unique new fluorophores during the gelation process to obtain hydrogels with good fluorescence *** addition,biomacromolecules can be modified with fluorescent groups to obtain fluorescent materials with excellent performance,thus improving the hydrophilicity and biocompatibility of *** particular,grafting aggregation-caused quenching(ACQ)luminogens onto biomacromolecules can even effectively inhibit the aggregation and self-quenching of *** is well known that aromatic biological macromolecules such as green fluorescent protein have intrinsic *** fluorescence is also observed in nonaromatic biological macromolecules without traditional chromophores such as chitosan,cellulose and sodium *** luminescence of nonaromatic biomacromolecule can be rationalized by the clustering-triggered emission(CTE)mechanism,namely,clustering of nonconventional chromophores and subsequent electron overlap and conformation rigidification are accountable for the *** this review,fluorescence gels obtained from biomacromolecules,biomacromolecules modified with fluorophores,and the intrinsic luminescence of biomacromolecular luminogens are *** review will help to develop low-cost,biocompatible luminescent materials and has great significance for comprehending the luminescence of nonconventional luminophores and expanding the application of luminescent compounds.

关键词： Biomacromolecules Fluorescent gels Graft Intrinsic fluorescence Clustering-Triggered emission