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Quantitative prediction and ranking of the shock sensitivity ofexplosives via reactive molecular dynamics simulations

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Defence Technology（防务技术） 2022年第5期18卷 843-854页

作者： Kun yang Lang chen dan-yang Liu De-shen Geng Jian-ying Lu Jun-ying Wu State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China

A deep understanding of explosive sensitivities and their factors is important for safe and reliable ***,quantitative prediction of the sensitivities is ***,reactive molecular dynamics simulation models for high-speed piston impacts on explosive supercells were *** were also performed to investigate shock-induced reactions of various high-energy *** fraction of reacted explosive molecules in an initial supercell changed linearly with the propagation distance of the shock-wave *** corresponding slope could be used as a reaction rate for a specific shock-loading *** rates that varied with the shock-loading pressure exhibited two-stage linearities with different *** two inflection points corresponded to the initial and accelerated reactions,which respectively correlated to the thresholds of shock-induced ignition and ***,the ignition and detonation critical pressures could be *** sensitivity could then be a quantitative prediction of the critical *** accuracies of the quantitative shock sensitivity predictions were verified by comparing the impact and shock sensitivities of common explosives and the characteristics of anisotropic shock-induced *** dynamics simulations quantitatively predict and rank shock sensitivities by using only crystal structures of the ***,this method will enable the design and safe use of explosives.

关键词： Explosive Shock sensitivity Quantitative prediction Reactive molecular dynamics simulation

Systematic CDCC calculations for ~11Be+p elastic scattering

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Science China(Physics,Mechanics & Astronomy) 2016年第3期59卷 70-74页

作者： Jie chen Jian Ling Lou dan yang Pang Yan Lin Ye School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University School of Physics and Nuclear Energy Engineering Beihang University

Continuum discretised coupled-channels （CDCC） method with a 10Be（0＋）＋ n two-body cluster model is applied to systematically analyze the elastic scattering of the halo nucleus alBe from the proton target at various incident energies below 100 MeV/nucleon. Using the renormalized 10Be-p potential deduced from the 10Be ＋ p elastic scattering data, the differential cross sections of 11 Be ＋ p scattering are well reproduced by the CDCC calculations without any further adjustment parameters, demonstrating the applicability of this approach for describing the scattering of exotic nuclei based on the scattering of the less exotic core nuclei.

关键词： elastic scattering CDCC 11Be

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温州医科大学临床实践教学体系构建与实践

高校医学教学研究（电子版） 2018年第2期8卷 17-20页

作者：王世泽李章平陈丹阳曹建明温州医科大学继续教育学院温州325035 温州医科大学仁济学院温州325035 温州医科大学基础医学院温州325035 温州医科大学校办温州325035

建设健康中国,关键在人才,基础在教育。医疗卫生服务直接关系人民的身体健康,人才培养质量攸关人民群众的健康福祉。医学是一门实践性很强的学科,其对医学生实践能力、创新精神和团队合作能力的培养要求非常高。近年来,我校通过对临床... 详细信息

建设健康中国,关键在人才,基础在教育。医疗卫生服务直接关系人民的身体健康,人才培养质量攸关人民群众的健康福祉。医学是一门实践性很强的学科,其对医学生实践能力、创新精神和团队合作能力的培养要求非常高。近年来,我校通过对临床实践教学体系的构建与实践,从师资、资源和平台等三方面入手,着力提升人才培养质量。

关键词：临床实践教学体系研究

A Comparative Study of the Power-law Relationship between the Pulse width and Energy of Precursor and Main Burst

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Research in Astronomy and Astrophysics 2024年第3期24卷 144-168页

作者： Hui-Ying Deng Zhao-yang Peng Jia-Ming chen dan Zhu College of Physics and Electronic Information Yunnan Normal UniversityKunming 650500China

In gamma-ray burst prompt emission,there is still no consistent conclusion if the precursor and main burst share the same *** this paper,we try to study this issue based on the relationship between pulse width and energy of the precursor and main *** systematically search the light curve data observed by Swift/BAT and Fermi/GBM,and find 13 long bursts with well-structured precursors and main *** fitting the precursor light curve of each different energy channel with the Norris function,we find that there is not only a power-law relationship between precursor width and energy,but also a power-law relationship between the ratio of the rising width to the decaying width and *** comparing the relationship between the precursors and the main burst pulses,we find that the distribution of the precursors and the relationship between the power-law indices are roughly the same as those of the main *** addition,it is found that the precursor width distribution as well as the upper limit of the pulse width ratio does not exceed 1 and both are asymmetric,which are also consistent with the main *** indicate that the precursor and the main burst are indistinguishable,and the precursor and the main burst may have the same physical origin.

关键词： methods data analysis-(stars) gamma-ray burst general-shock waves

Achieving long-cycling sodium-ion full cells in ether-based electrolyte with vinylene carbonate additive

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Journal of Energy Chemistry 2021年第6期30卷 650-655,I0016页

作者： Juan Shi Lina Ding Yanhua Wan Liwei Mi Linjie chen dan yang Yuxiong Hu Weihua chen Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhou 450001HenanChina Henan Key Laboratory of Functional Salt Materials Center of Advanced Materials ResearchZhongyuan University of TechnologyZhengzhou 450007HenanChina College of Pharmacy Zhengzhou UniversityZhengzhou 450001HenanChina

Application of sodium-ion batteries is suppressed due to the lack of appropriate electrolytes matching cathode and anode ***-based electrolytes,preference of anode materials,cannot match with high-potential cathodes failing to apply in full ***,vinylene carbonate(VC)as an additive into NaCF_(3) SO_(3)-Diglyme(DGM)could make sodium-ion full cells applicable without preactivation of cathode and *** assembled FeS@C||Na3 V2(PO_(4))_(3)@C full cell with this electrolyte exhibits long term cycling stability and high capacity *** deduced reason is additive VC,whose HOMO level value is close to that of DGM,not only change the solvent sheath structure of Na^(+),but also is synergistically oxidized with DGM to form integrity and consecutive cathode electrolyte interphase on Na3 V2(PO_(4))_(3)@C cathode,which could effectively improve the oxidative stability of electrolyte and prevent the electrolyte *** work displays a new way to optimize the sodium-ion full cell seasily with bright practical application potential.

关键词： Cathode electrolyte interphase Sodium-ion batteries Full cell Ether-based electrolyte Vinylene carbonate DFT calculation

Assembly of highly efficient aqueous light-harvesting system from sequence-defined peptoids for cytosolic microRNA detection

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Nano Research 2024年第2期17卷 788-796页

作者： yang Song Xiaoli Cai Mingming Wang dan Du Yuehe Lin Chun-Long chen Department of Mechanical and Materials Engineering Washington State UniversityPullmanWA 99164USA Division of Physical Sciences Pacific Northwest National LaboratoryRichlandWA 99352USA Department of Chemical Engineering University of WashingtonSeattleWA 98195USA

Precisely controlled spatial distributions of artificial light-harvesting systems in aqueous media are of significant importance for mimicking natural light-harvesting systems;however,they are often restrained by the solubility and the aggregation-caused quenching effect of the hydrophobic ***,we report one highly efficient artificial light-harvesting system based on peptoid nanotubes that mimic the hierarchical cylindrical structure of natural *** high crystallinity of these nanotubes enabled the organization of arrays of donor chromophores with precisely controlled spatial distributions,favoring an efficient Förster resonance energy transfer(FRET)process in aqueous *** FRET system exhibits an extremely high efficiency of 98.6%with a fluorescence quantum yield of 40%and an antenna effect of *** further demonstrated the use of this artificial light-harvesting system for quantifying miR-210 within cancer *** fluorescence intensity ratio of donor to acceptor is linearly related to the concentration of intercellular miR-210 in the range of 3.3–156 copies/*** high sensitivity in intracellular detection of miR-210 using this artificial light-harvesting system offers a great opportunity and pathways for biological imaging and detection,and for the further creation of microRNA(miRNA)toolbox for quantitative epigenetics and personalized medicine.

关键词： light-harvesting peptoid nanotube Förster resonance energy transfer intracellular RNA detection

A New Risk Measure MMVaR:Properties and Empirical Research

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Journal of Systems Science & Complexity 2023年第5期36卷 2026-2045页

作者： TAN Keqi chen Yu chen dan Department of Statistics and Finance School of ManagementUniversity of Science and Technology of ChinaHefei 230026China

The paper presents the properties of an alternative method,which measures market risk over time-horizon exceeding one day:Mark to market value at risk(MMVaR).Relying on the minimal returns during the time interval,this method not only considers the non-normality of data and information about sample size,but also meets the requirement of increasing the minimal capital ratio in BaselⅢ,*** authors theoretically prove the translation invariance,monotonicity and subadditivity of MMVaR as a risk measure under some conditions,and study its finite sample properties through Monte Carlo *** empirical analysis shows that MMVaR can measure multi-period risk accurately.

关键词： MMVaR multi-period risk risk measure subadditive

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海蒿子多糖抗宫颈癌分子机制研究

药物生物技术 2022年第5期29卷 542-546页

作者：肖玉梅陈丹阳郑锐林苏静瑶朱冰李英华龚桂芳广州医科大学附属广州市妇女儿童医疗中心中心实验室广东广州510120 广州医科大学附属广州市妇女儿童医疗中心妇产科广东广州510120

宫颈癌是女性生殖系统常见的恶性肿瘤,高危型人乳头瘤病毒感染是其主要的致病因素。来源于海洋生物的多糖,具有结构新颖、安全性高,毒副作用小等优点,且显示出较好的增强免疫、细胞诱导分化、抗病毒、抗肿瘤生物活性,是潜在的抗HPV和抗... 详细信息

宫颈癌是女性生殖系统常见的恶性肿瘤,高危型人乳头瘤病毒感染是其主要的致病因素。来源于海洋生物的多糖,具有结构新颖、安全性高,毒副作用小等优点,且显示出较好的增强免疫、细胞诱导分化、抗病毒、抗肿瘤生物活性,是潜在的抗HPV和抗宫颈癌药物,近年来已引起国内外学者的广泛关注。其抗肿瘤作用的主要机理是提高机体免疫功能的同时产生对肿瘤细胞直接细胞毒作用、诱导肿瘤细胞的凋亡、抑制肿瘤细胞周期有关。文章以海藻中的海藻子为例,详细讨论海蒿子多糖抗宫颈癌的分子机制,并提出海蒿子多糖在治疗宫颈癌未来研究开发和临床应用的展望。

关键词：海蒿子多糖宫颈癌天然产物分子机制

Boosting xenon adsorption with record capacity in microporous carbon molecular sieves

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Science China Chemistry 2023年第2期66卷 601-610页

作者： Fuqiang chen Xinlei Huang Liu yang Zhiguo Zhang Qiwei yang Yiwei yang dan Zhao Qilong Ren Zongbi Bao Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027China Division of Electronic Chemicals Institute of Zhejiang University-QuzhouQuzhou324000China Department of Chemical and Biomolecular Engineering National University of SingaporeSingapore117585Singapore

Xenon/krypton(Xe/Kr)separation is an important task in industry,yet it remains challenging to develop adsorbents with high Xe/Kr selectivity and adsorption capacity of Xe,especially at low partial ***,we report a series of microporous carbon molecular sieves(CMSs)for Xe/Kr *** materials have ideal bimodal pore size distributions that not only provide substantial space for the accommodation of gas molecules,but also allow selective diffusion of gas ***,the carbon frameworks decorated with polar oxygen-containing functional groups afford higher affinity for Xe than Kr,which is proven by density functional theory(DFT)calculations and charge density difference *** optimal CPVDC-700 exhibits a high selectivity of Xe/Kr and,more importantly,a record-high uptake of Xe(2.93 mmol g^(-1))at 0.2 bar and298 K,which is the highest among all the reported carbon *** experiments confirm the excellent performance of such CMSs for Xe/Kr separation,and the dynamic adsorption uptake of Xe and productivity of high-purity Kr are calculated to be 2.91 mmol g^(-1)and 208 m L g^(-1)(9.29 mmol g^(-1)),respectively,which also set up a new benchmark for Xe/Kr separation of carbon adsorbents.

关键词： adsorption separation xenon krypton carbon molecular sieve bimodal pore size distributions