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Chinese Physics C 2024年第4期48卷 159-173页

作者：李哲吳震宇陈松战南云程何会海 Institute of High Energy Physics Chinese Academy of ScienceBeijing 100049China Department of Physics The Chinese University of Hong KongShatinNew TerritoriesHong KongChina School of Physical Sciences University of Chinese Academy of ScienceBeijing 100049China

Cosmic rays can interact with the solar atmosphere and produce a slew of secondary messengers,making the Sun a bright gamma-ray source in the *** observations with Fermi-LAT have shown that these interactions must be strongly affected by solar magnetic fields in order to produce a wide range of observational features,such as a high flux and hard ***,the detailed mechanisms behind these features are still a *** this study,we tackle this problem by performing particle-interaction simulations in the solar atmosphere in the presence of coronal magnetic fields using the potential field source surface(PFSS)*** find that low-energy(~GeV)gamma-ray production is significantly enhanced by the coronal magnetic fields,but the enhancement decreases rapidly with *** enhancement directly correlates with the production of gamma rays with large deviation angles relative to the input cosmic-ray *** conclude that coronal magnetic fields are essential for correctly modeling solar disk gamma rays below 10 GeV,but above that,the effect of coronal magnetic fields *** magnetic field structures are needed to explain the high-energy disk emission.

关键词： solar gamma-ray corona magnetic field Geant4 simulation hadronic interaction

Design of the LHAASO detectors

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Radiation Detection Technology and Methods 2018年第1期2卷 49-56页

作者： huihai he For the LHAASO Collaboration Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China 不详

Introduction The Large High Altitude Air Shower Observatory plans to build a hybrid extensive air shower array with an area of about 1 km^(2) at an altitude of 4,410 m *** Sichuan province,China,to explore the origin of high-energy cosmic ***2A LHAASO-KM2A will detect gamma ray sources with a sensitivity of about 1%Crab Unit at 100 *** covers an area of 1 km^(2) with a total of 5195 scintillation *** angular resolution reaches about 0.3 degrees,and the energy resolution is better than 25%.With the help of 1171 muon detectors,cosmic nuclei background will be rejected to a level of 10-4 at 50 *** design and performances of the scintillation detectors and muon detectors are described in *** LHAASO-WCDA focuses on surveying the northern sky for steady and transient sources from 100 GeV to 20 TeV,with a very high background rejection power and a good angular *** WCDA consists of three water ponds with a total area of 78,000 m^(2),and the effective water depth is 4 *** water pond is divided into 5m×5m cells partitioned by black plastic curtains to prevent penetration of the light from neighboring *** 8-inch PMT sits at the bottom center of each cell,looking upward to collect Cherenkov light generated by shower secondary particles in *** LHAASO-WFCTA is composed of 12 wide-field-of-view Cherenkov/fluorescence *** telescope consists of a spherical light collector of about 4.7 m^(2) and focal plane camera of 32×32 pixels with a pixel size of 0.5 *** prototype arrays A prototype array about 1%of LHAASO has been constructed at Yangbajing Cosmic Ray Observatory and has been in operation for more than 2 *** performance fully meets the design *** The LHAASO detectors are designed to fulfill the physical goals in gamma ray astronomy and cosmic ray ***-fourth of LHAASO will be constructed and put into operation to produce physical data by the end of *** whole ar

关键词： Origin of cosmic rays Gamma ray astronomy Extensive air shower

Dynamics of the Fractional-Order Lorenz System Based on Adomian Decomposition Method and Its DSP Implementation

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1298-1300页

作者： Shaobo he Kehui Sun huihai Wang School of Physics and Electronics Central South UniversityChangshaHunan 410083China School of Automation and Electronic Information Xiangtan UniversityXiangtan 411105China School of Physics Central South UniversityChangsha 410083China School of Electronic Information Central South UniversityChangsha 410083China

Dear Editor,Dynamics and digital circuit implementation of the fractional-order Lorenz system are investigated by employing Adomian decomposition method(ADM).Dynamics of the fractional-order Lorenz system with derivat... 详细信息

关键词： diagram fractional system

Strong constraints on Lorentz violation using new γ-ray observations around PeV

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Chinese Physics C 2021年第10期45卷 125-130页

作者： Liang Chen Zheng Xiong Cong Li SongZhan Chen huihai he Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduSichuanChina

The tiny modification of dispersion relation induced by Lorentz violation(LV)is an essential topic in quantum gravity(QG)theories,which can be magnified into significant effects when dealing with astrophysical observations at high energies and long propagation *** would lead to photon decay at high energies;therefore,observations of high-energy photons could constrain LV or even QG *** Large High Altitude Air Shower Observatory(LHAASO)is the most sensitive gamma-array instrument currently operating above 100 ***,LHAASO reported the detection of 12 sources above 100 TeV with maximum photon energy exceeding 1 *** to these observations,the most stringent restriction is achieved in this study,i.e.,limiting the LV energy scale to 1.7×10^(33) eV,which is over 139,000 times that of the Planck energy,and achieving an improvement of approximately 1.9 orders of magnitude over previous limits.

关键词： Lorentz Violation PeV photon LHAASO

Measurement of water quality in LHAASO-WCDA

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辐射探测技术与方法(英文) 2023年第2期7卷 192-199页

作者： Huicai Li Mingjun Chen Bo Gao huihai he Cheng Liu Kai Li Bodong Wang Xiaohao You Yuelei Zhang TIANFU Cosmic Ray Research Center ChengduSichuanChina Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China University of Chinese Academy of Sciences Beijing100049China

Introduction The water Cherenkov detector array(WCDA)is an important detector in the Large High Altitude Air Shower Observatory(LHAASO),which is tasked with continuously surveying Vhe gamma-rays *** WCDA covers an area of 78,000 m2 and contains 350,000 tons of purified *** water quality and its stability are critical for its performance and long-term *** Light is exponentially attenuated when propagating in *** attenuation length can be obtained by comparing light intensities at different optical path lengths,which is the basic principle of direct ***,a cylindrical device was designed to continuously monitor and measure water quality in the *** The systematic error of the cylindrical device was about 4.1%,indicating it is capable of measuring the water attenuation length in ***,suspended particle number and turbidity were confirmed as significantly related to the measured attenuation length.

关键词： Water Cherenkov LHAASO-WCDA Water quality

The Online System of the YBJ-ARGO Experiment

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The Online System of the YBJ-ARGO Experiment

CCAST“羊八井ARGO实验”研讨会

作者： he huihai Institute of High Energy Physics, CAS

羊八井ARGO实验事例率约为20KHz,数据率约为6M字节/秒,其在线数据采集需要复杂的控制系统,在线软件起着很重要的作用。本文介绍了在线系统的结构、模板、远程控制、数据流等。

关键词： DAQ online template

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大科学装置与高能宇宙线起源的探索

中国科学：物理学、力学、天文学 2014年第10期44卷 1095-1107页

作者：曹臻何会海中国科学院高能物理研究所北京100049

大科学装置已经成为全球创新系统中具有支撑作用的框架结构,对中国作为一个国家和宇宙线物理作为一个研究领域来说也是一样的.在其一百年发展史中,传统的宇宙线研究并非完全以大科学装置为依托.20世纪80年代以后,为了探索宇宙中微子和... 详细信息

大科学装置已经成为全球创新系统中具有支撑作用的框架结构,对中国作为一个国家和宇宙线物理作为一个研究领域来说也是一样的.在其一百年发展史中,传统的宇宙线研究并非完全以大科学装置为依托.20世纪80年代以后,为了探索宇宙中微子和极高能宇宙线粒子,那必不可少的巨大中微子灵敏体积和至少上千平方公里的极高能宇宙线探测面积才给这个古老的学科设定了新的标准,而随之提出的几个大科学装置相继建成并在近几十年的宇宙线研究的辉煌成就中占据了核心地位,尤其在甚高能伽马射线天文学.在过去的20年内,中国为发展巡天普查伽马射线源的广延空气簇射技术做出了巨大的努力,成功地运行了ASγ和ARGO-YBJ两个高海拔国际宇宙线实验.现在,我们提出独具特色的高海拔空气簇射测量装置LHAASO的建设计划,建设面积达一平方公里的复合探测器阵列,以多种探测手段的有机组合寻求发现高能宇宙线起源,挑战新世纪里未解之科学难题.凭借其30 TeV以上最高的探测灵敏度,LHAASO将成为整个宇宙线研究领域的支柱项目之一.

关键词：伽马射线源甚高能伽马天文学超高能中微子天文学极高能粒子天文学宇宙线

A novel variable-order fractional chaotic map and its dynamics

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Chinese Physics B 2024年第3期33卷 281-290页

作者：唐周青贺少波王会海孙克辉姚昭吴先明 School of Electronic Information Central South UniversityChangsha 410083China School of Automation and Electronic Information Xiangtan UniversityXiangtan 411105China School of Physics Central South UniversityChangsha 410083China School of Mechanical and Electrical Engineering Guizhou Normal UniversityGuiyang 550025China

In recent years,fractional-order chaotic maps have been paid more attention in publications because of the memory *** paper presents a novel variable-order fractional sine map(VFSM)based on the discrete fractional ***,the order is defined as an iterative function that incorporates the current state of the *** analyzing phase diagrams,time sequences,bifurcations,Lyapunov exponents and fuzzy entropy complexity,the dynamics of the proposed map are investigated comparing with the constant-order fractional sine *** results reveal that the variable order has a good effect on improving the chaotic performance,and it enlarges the range of available parameter values as well as reduces non-chaotic *** coexisting attractors also enrich the dynamics of VFSM and prove its sensitivity to initial ***,the sequence generated by the proposed map passes the statistical test for pseudorandom number and shows strong robustness to parameter estimation,which proves the potential applications in the field of information security.

关键词： chaos fractional difference variable order multistability complexity

Single-cell transcriptomics reveals T-cell heterogeneity and immunomodulatory role of CD4+T native cells in Candida albicans infection

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BIOCELL 2024年第9期48卷 1355-1368页

作者： KERAN JIA YANHAO ZHANG MENGYU JIANG MENGGE CUI JIA WANG JIAJIA ZHANG huihai ZHAO MENGYAN LI HUA WANG QUANMING ZOU HAO ZENG National Engineering Research Center of Immunological Products Department of Microbiology and Biochemical PharmacyCollege of PharmacyArmy Medical UniversityChongqing400038China Department of Clinical Laboratory The 980th Hospital of PLA Joint Logistics Support Force(Bethune International Peace Hospital)Shijiazhuang050082China

Objective:Candida albicans is a common fungal pathogen that triggers complex host defense mechanisms,including coordinated innate and adaptive immune responses,to neutralize invading fungi *** the immune microenvironment has the potential to inform the development of therapeutic strategies for fungal ***:The study analyzed individual immune cell profiles in peripheral blood mononuclear cells from Candida albicans-infected mice and healthy control mice using single-cell transcriptomics,fluorescence quantitative PCR,and Western *** investigated intergroup differences in the dynamics of immune cell subpopulation infiltration,pathway enrichment,and differentiation during Candida albicans ***:Our findings indicate that infiltration of CD4^(+)naive cells,regulatory T(Treg)cells,and Microtubules(MT)-associated cells increased after infection,along with impaired T cell ***,CD4^(+)T cells and plasma cells were enhanced after infection,suggesting that antibody production is dependent on T *** addition,we screened 6 hub genes,transcription factor forkhead box protein 3(Foxp3),cytotoxic T-lymphocyte associated protein 4(CTLA4),Interleukin 2 Receptor Subunit Beta(Il2rb),Cd28,C-C Motif Chemokine Ligand 5(Ccl5),and Cd27 for alterations associated with CD4^(+)T cell ***:These results provide a comprehensive immunological landscape of the mechanisms of Candida albicans infection and greatly advance our understanding of adaptive immunity in fungal infections.

关键词： Candida albicans Single-cell transcriptomics Immune microenvironment Fungal infections Hub gene

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秋收起义部队芦溪宿营和移营问题研究

苏区研究 2024年第2期 100-109页

作者：张辉海萍乡学院安源红色文化研究中心江西萍乡337000

1927年9月9日,湘赣边界秋收起义爆发,起义部队一度攻克湖南醴陵、浏阳等城镇,但随后迭遭失利,不得不退至浏阳文家市,并经萍乡、莲花、永新等地上井冈山,创建了中国第一块农村革命根据地--井冈山革命根据地。途中,即9月24日,秋收起义部... 详细信息

1927年9月9日,湘赣边界秋收起义爆发,起义部队一度攻克湖南醴陵、浏阳等城镇,但随后迭遭失利,不得不退至浏阳文家市,并经萍乡、莲花、永新等地上井冈山,创建了中国第一块农村革命根据地--井冈山革命根据地。途中,即9月24日,秋收起义部队抵达萍乡东部重镇芦溪宿营。学界对于秋收起义部队芦溪宿营这段史实研究不多,且在一些问题上存在争议。爬梳史料,可以发现部队24日下午3、4点抵达芦溪街,下午6点左右已扎营完毕,因获知敌情而连夜转移至“芦溪南面的山地”宿营,移营过程比较艰难,但部队却得以安全宿营。芦溪宿营和移营,是毛泽东上山思想的早期实践,是“农村包围城市”思想的雏形,对其展开研究具有重要的历史意义。

关键词：毛泽东秋收起义芦溪宿营移营