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Measurements of electronic properties of the Miyun 50m Radio Telescope

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Chinese Journal of Astronomy and Astrophysics 2009年第3期9卷 367-376页

作者： Xi-Zhen Zhang Xin-Ying Zhu De-Qing Kong Lei Zheng Cheng Yao hong-Bo Zhang yan su Ting-Yi Piao National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China

Measurement results of some properties of the Miyun 50 m radio telescope （MRT50） of the National Astronomical Observatories, such as pointing calibration, antenna beams, system noise temperature, gain and gain variations with elevation are introduced. By using a new de-convolution technique developed by our group, the broadening effect on measured beams caused by the width of art extended radio source has been removed so that we obtained higher accuracy on the measurements of MRT50 beams.

关键词： instrument telescope - antenna - method

Quantum public-key crypto via EPR pairs

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 58-63页

作者： Xiang-Qun Fu hong-Wei Li Jian-hong Shi Tan Li Wan-su Bao Henan Key Laboratory of Quantum Information and Cryptography Information Engineering University Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China

With the development of quantum computing technology, quantum public-key cryptography is gradually becoming an alternative to the existing classical public-key cryptography. This paper designs a quantum trapdoor one-way function via EPR pairs and quantum measurements. Based on this, a new quantum public-key cryptosystem is presented, which offers forward security,and can resist the chosen-plaintext attack and chosen-ciphertext attack. Compared with the existing quantum public-key cryptos,eavesdropping can be automatically detected in this new quantum public-key cryptosystem under a necessary condition, which is also detailed in the paper.

关键词： quantum public-key crypto trapdoor one-way function EPR pairs

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方形通道内超临界碳氢燃料传热恶化数值研究

推进技术 2016年第12期37卷 2377-2384页

作者：王彦红李素芬大连理工大学能源与动力学院辽宁大连116024

为了深入理解火箭发动机再生冷却过程中碳氢燃料的流动传热规律,采用RNG k-ε湍流模型结合增强壁面处理方法对非对称受热(上壁面外侧加热)方形冷却通道内超临界压力甲烷的对流换热进行了数值研究。重点考察了加热壁面内侧的传热恶化以... 详细信息

为了深入理解火箭发动机再生冷却过程中碳氢燃料的流动传热规律,采用RNG k-ε湍流模型结合增强壁面处理方法对非对称受热(上壁面外侧加热)方形冷却通道内超临界压力甲烷的对流换热进行了数值研究。重点考察了加热壁面内侧的传热恶化以及由传热恶化和固壁热传导共同作用引起的热流异常传递现象,拟合得到了传热恶化的临界热流密度和起始内壁温关系式、加热侧内壁面和侧壁面内侧平均热流密度的预测关系式。结果表明:当外壁热流密度和质量流速比值高于0.288 k J/kg时,近壁流体流动加速诱发了加热侧内壁面的传热恶化;同时,固体区域温度畸变导致加热侧内壁面热流密度减小,热流更多地向侧壁面内侧传导。运行压力越低,该现象越显著。

关键词：冷却通道超临界压力甲烷传热恶化异常热传导数值研究

Rock fracture mechanism of buffer blasting with cushion layer at the borehole bottom

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 325-334页

作者： Xinguang Zhu Chenxi Ding Zhe sui hong su Xu Guo School of Civil and Resources Engineering University of Science and Technology BeijingBeijing 100083China Key Laboratory for Mechanics in Fluid Solid Coupling Systems Institute of MechanicsChinese Academy of SciencesBeijing 100190China School of Mechanics and Civil Engineering China University of Mining and Technology(Beijing)Beijing 100083China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

This study primarily investigates the rock fracture mechanism of bottom cushion layer blasting and explores the effects of the bottom cushion layer on rock *** involves analyses of the evolution patterns of blasting stress,characteristics of crack distribution,and rock fracture features in the ***,blasting model experiments were carried out using the dynamic caustics principle to investigate the influence of bottom cushion layers and initiation methods on the integrity of the bottom rock *** experimental results indicate that the combined use of bottom cushion layers and inverse initiation effectively protects the integrity of the bottom rock ***,the process of stress wave propagation and dynamic crack propagation in rocks was simulated using the continuum-discontinuum element method(CDEM)and the Landau explosion source model,with varying thicknesses of bottom cushion *** numerical simulation results indicate that with increasing cushion thickness,the absorption of energy generated by the explosion becomes more pronounced,resulting in fewer cracks in the bottom rock *** illustrates the positive role of the cushion layer in protecting the integrity of the bottom rock mass.

关键词： bottom cushion layer blasting crack propagation continuum-discontinuum element method dynamic stress intensity factor

Towards a natural classification of Astrosphaeriella-like species;introducing Astrosphaeriellaceae and Pseudoastrosphaeriellaceae *** Astrosphaeriellopsis,***.

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Fungal Diversity 2015年第5期74卷 143-197页

作者： Rungtiwa Phookamsak Chada Norphanphoun Kazuaki Tanaka Dong-Qin Dai Zong-Long Luo Jian-Kui Liu hong-yan su Darbhe J.Bhat Ali H.Bahkali Peter E.Mortimer Jian-Chu Xu Kevin D.Hyde Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming 650201YunnanChina World Agroforestry Centre East Asia NodeHeilongtanKunming 650201People’s Republic of China School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Center of Excellence in Fungal Research and School of Science Mae Fah Luang UniversityChiang Rai 57100Thailand Formerly Department of Botany Goa UniversityGoaIndia No.128/1-J Azad Housing SocietyCurcaGoa 403108India Guizhou Key Laboratory of Agricultural Biotechnology GuizhouAcademy of Agricultural SciencesGuiyangGuizhouChina College of Agriculture&Biology Dali UniversityDali 671003YunnanPeople’s Republic of China Faculty of Agriculture and Life Sciences Hirosaki University3 Bunkyo-choHirosakiAomori 036-8561Japan Department of Botany and Microbiology College of ScienceKing Saud UniversityP.O.Box:2455Riyadh 1145Saudi Arabia CAS Key Laboratory of Genome Sciences and Information Beijing Institute of GenomicsChinese Academy of SciencesNo.1 Beichen West RoadChaoyang DistrictBeijing 100101People’s Republic of China

Astrosphaeriella sensu lato is a common genus occurring on bamboo,palms and stout *** of Astrosphaeriella have been collected from various countries in tropical,subtropical or temperate *** Asia,species have been collected in Brunei,China,Indonesia,Japan,Philippines and *** have been several morphological studies on Astrosphaeriella,but molecular work and phylogenetic analyses are generally *** included in Astrosphaeriella were characterized in three main groups 1)typical Astrosphaeriella species(sensu stricto)having carbonaceous,erumpent,conical ascostromata 2)atypical Astrosphaeriella species(sensu lato)having immersed,coriaceous ascostromata with short to long papilla and 3)lophiostoma-like species having immersed ascostromata with slit-like *** of the latter Astrosphaeriella species,having slit-like openings,have been transferred to Fissuroma and Rimora in *** this study five type specimens of Astrosphaeriella were loaned from herbaria worldwide and re-examined and are re-described and *** of Astrosphaeriella were also made in Thailand and morphologically *** cultures were obtained from single spores and used in molecular *** asexual morph was induced on sterile bamboo pieces placed on water *** analyses of combined Lsu,Ssu and TEF1 sequence data of astrosphaeriella-like species using Bayesian,Maximum parsimony(MP)and Randomized Accelerated Maximum Likelihood(RAxML)analyses were carried *** analyses show that species of Astrosphaeriella can be distinguished in at least three *** of Astrosphaeriella sensu stricto with erumpent,carbonaceous ascostromata,form a strongly supported clade with Pteridiospora species and a new family,Astrosphaeriellaceae,is introduced to accommodate these *** genera are revised and Astrosphaeriella bambusae,***,***,***,*** and Pteridiospora chiangraiensis

关键词： Asexual morph Bamboo Palm Pseudoastrosphaeriella Phylogeny Pleosporales Taxonomy

Glucocorticoid receptor signaling in the brain and its involvement in cognitive function

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Neural Regeneration Research 2025年第9期20卷 2520-2537页

作者： Chonglin su Taiqi Huang Meiyu Zhang yanyu Zhang yan Zeng Xingxing Chen Brain Science and Advanced Technology Institute Hubei Province Key Laboratory of Occupational Hazard Identification and ControlSchool of MedicineWuhan University of Science and TechnologyWuhanHubei ProvinceChina

The hypothalamic-pituitary-adrenal axis regulates the secretion of glucoco rticoids in response to environmental *** the brain,a nuclear receptor transcription fa ctor,the glucocorticoid recepto r,is an important component of the hypothalamicpituitary-a d renal axis's negative feedback loop and plays a key role in regulating cognitive equilibrium and *** glucoco rticoid receptor influences cognitive processes,including glutamate neurotransmission,calcium signaling,and the activation of brain-derived neurotrophic factor-mediated pathways,through a combination of genomic and non-genomic *** interactions within the central nervous system can alter the expression and activity of the glucocorticoid receptor,there by affecting the hypothalamic-pituitary-a d renal axis and stress-related cognitive *** appropriate level of glucocorticoid receptor expression can improve cognitive function,while excessive glucocorticoid receptors or long-term exposure to glucoco rticoids may lead to cognitive *** with cognitive impairment-associated diseases,such as Alzheimer's disease,aging,depression,Parkinson's disease,Huntington's disease,stroke,and addiction,often present with dysregulation of the hypothalamic-pituitary-adrenal axis and glucocorticoid receptor *** review provides a comprehensive overview of the functions of the glucoco rticoid receptor in the hypothalamic-pituitary-a d renal axis and cognitive *** emphasizes that appropriate glucocorticoid receptor signaling fa cilitates learning and memory,while its dysregulation can lead to cognitive *** provides clues about how glucocorticoid receptor signaling can be targeted to ove rcome cognitive disability-related disorders.

关键词： brain-derived neurotrophic factor calcium signaling glucocorticoid receptor glucocorticoid glutamate transmission hypothalamic-pituitary-adrenal axis long-term potentiation neurocognitive disorders neuroplasticity stress

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高浓度游离氨冲击负荷对生物硝化的影响机制

环境科学 2017年第1期38卷 260-268页

作者：季民刘灵婕翟洪艳刘京苏晓天津大学环境科学与工程学院天津300350

工业废水厂或含工业废水较多的城市污水处理厂,在运行过程中可能会意外受到高浓度氨氮废水急性冲击负荷的影响,造成生物硝化反应受到抑制,出水不能稳定达标.为了指导实际污水处理厂应对游离氨(FA)急性冲击负荷造成的出水不达标问题,本... 详细信息

工业废水厂或含工业废水较多的城市污水处理厂,在运行过程中可能会意外受到高浓度氨氮废水急性冲击负荷的影响,造成生物硝化反应受到抑制,出水不能稳定达标.为了指导实际污水处理厂应对游离氨(FA)急性冲击负荷造成的出水不达标问题,本文探究高浓度氨氮废水对污水生物硝化系统的影响机制.本文利用序批式活性污泥反应器(SBR)处理模拟高氨氮废水,通过监测氨氮最大比降解速率、硝酸盐氮最大比生成速率、亚硝化和硝化比耗氧速率,硝化菌丰度等指标,研究高浓度氨氮废水中FA对硝化菌活性的影响规律.结果表明,FA在低浓度范围内,增加FA急性负荷能够促进硝化活性,而当FA急性冲击负荷大于一定值时,会对硝化作用造成抑制;FA浓度越大,受到抑制的硝化生物活性所需要的恢复周期越长.利用荧光原位杂交分析技术,发现当进水FA浓度(以N计)从3.6 mg·L^(-1)升高到8.1 mg·L^(-1)时,氨氧化菌(AOB)和亚硝酸盐氧化菌(NOB)菌群数量都略微升高,而当FA浓度大于8.1 mg·L^(-1)时,AOB和NOB菌群数量明显下降.FA对AOB和NOB菌群的临界抑制浓度分别为8.1 mg·L^(-1)和6.6 mg·L^(-1),NOB相对于AOB菌群更敏感.

关键词：高浓度氨氮废水硝化硝化菌抑制游离氨

Freshwater Sordariomycetes

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Fungal Diversity 2019年第6期99卷 451-660页

作者： Zong-Long Luo Kevin D.Hyde Jian-Kui(Jack)Liu Sajeewa S.N.Maharachchikumbura Rajesh Jeewon Dan-Feng Bao Darbhe Jayarama Bhat Chuan-Gen Lin Wen-Li Li Jing yang Ning-Guo Liu Yong-Zhong Lu Ruvishika S.Jayawardena Jun-Fu Li hong-yan su College of Agriculture and Biological Sciences Dali UniversityDali 671003People’s Republic of China Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand School of Life Science and Technology University of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China Department of Crop Sciences College of Agricultural and Marine SciencesSultan Qaboos UniversityP.O.Box 34Alkhoud123 MuscatOman Department of Health Sciences Faculty of ScienceUniversity of MauritiusReduit 80837Mauritius Department of Entomology and Plant Pathology Faculty of AgricultureChiang Mai UniversityChiang Mai 50200Thailand No.128/1-J Azad Co-Op Housing SocietyCurcaGoa Velha 403108India School of Pharmaceutical Engineering Guizhou Institute of TechnologyGuiyang 550003People’s Republic of China

Sordariomycetes is one of the largest classes of Ascomycota that comprises a highly diverse range of fungi mainly characterized by perithecial ascomata and inoperculate unitunicate *** Sordariomycetes play an important role in ecosystems and some of them have the potential to produce bioactive *** study documents and reviews the freshwater Sordariomycetes,which is one of the largest and important groups of fungi in aquatic *** on evidence from DNA sequence data and morphology,we introduce a new order Distoseptisporales,two new families,*** and Triadelphiaceae,three new genera,***,Dematiosporium and Neospadicoides,47 new species,*** fluminicola,Aquafiliformis lignicola,Aquapteridospora fusiformis,Arthrinium aquaticum,Ascosacculus fusiformis,Atractospora aquatica,Barbatosphaeria lignicola,Ceratosphaeria aquatica,***,Chaetosphaeria aquatica,***,***,***,Codinaea yunnanensis,Conioscypha aquatica,***,Cordana aquatica,***,Cosmospora aquatica,Cylindrotrichum submersum,Dematiosporium aquaticum,Dictyochaeta cangshanensis,***,***,***,Distoseptispora appendiculata,***,***,***,Hypoxylon lignicola,Lepteutypa aquatica,Myrmecridium aquaticum,Neospadicoides aquatica,***,***,Ophioceras submersum,Peroneutypa lignicola,Phaeoisaria filiformis,Pseudostanjehughesia lignicola,Rhodoveronaea aquatica,Seiridium aquaticum,Sporidesmiella aquatica,Sporidesmium lageniforme,***,Tainosphaeria lunata,***,Wongia aquatica,two new combinations,*** aquatica,Cylindrotrichum aquaticum,and 9 new records,*** globosum,Chaetosphaeria cubensis,***,Cordana abramovii,***,Cuspidatispora xiphiago,Sporidesmiella hyalosperma,Stachybotrys chartarum,***.A comprehensive classification of the freshwater Sordariomycetes is presented based on updated literat

关键词： 47 new taxa Asexual morphs Phylogeny Sexual morphs Taxonomy

Recombinant chitinase-3-like protein 1 alleviates learning and memory impairments via M2 microglia polarization in postoperative cognitive dysfunction mice

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Neural Regeneration Research 2025年第9期20卷 2727-2736页

作者： Yujia Liu Xue Han yan su Yiming Zhou Minhui Xu Jiyan Xu Zhengliang Ma Xiaoping Gu Tianjiao Xia Department of Anesthesiology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina Medical School Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Key Laboratory of Molecular Medicine Nanjing UniversityNanjingJiangsu ProvinceChina State Key Laboratory of Pharmaceutical Biotechnology Nanjing UniversityNanjingJiangsu ProvinceChina Department of Anesthesiology Zhongshan HospitalFudan UniversityShanghaiChina

Postoperative cognitive dysfunction is a seve re complication of the central nervous system that occurs after anesthesia and surgery,and has received attention for its high incidence and effect on the quality of life of *** date,there are no viable treatment options for postoperative cognitive *** identification of postoperative cognitive dysfunction hub genes could provide new research directions and therapeutic targets for future *** identify the signaling mechanisms contributing to postoperative cognitive dysfunction,we first conducted Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses of the Gene Expression Omnibus GSE95426 dataset,which consists of mRNAs and long non-coding RNAs differentially expressed in mouse hippocampus3 days after tibial *** dataset was enriched in genes associated with the biological process"regulation of immune cells,"of which Chill was identified as a hub ***,we investigated the contribution of chitinase-3-like protein 1 protein expression changes to postoperative cognitive dysfunction in the mouse model of tibial fractu re *** were intraperitoneally injected with vehicle or recombinant chitinase-3-like protein 124 hours post-surgery,and the injection groups were compared with untreated control mice for learning and memory capacities using the Y-maze and fear conditioning *** addition,protein expression levels of proinflammatory factors(interleukin-1βand inducible nitric oxide synthase),M2-type macrophage markers(CD206 and arginase-1),and cognition-related proteins(brain-derived neurotropic factor and phosphorylated NMDA receptor subunit NR2B)were measured in hippocampus by western *** with recombinant chitinase-3-like protein 1 prevented surgery-induced cognitive impairment,downregulated interleukin-1βand nducible nitric oxide synthase expression,and upregulated CD206,arginase-1,pNR2B,and brain-derived neurotropic factor expr

关键词： Chil1 hippocampus learning and memory M2 microglia neuroinflammation postoperative cognitive dysfunction(POCD) recombinant CHI3L1