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Defence Technology（防务技术） 2021年第2期17卷 315-326页

作者： Jia-yun Liu Yong-xiang Dong Xuan-yi An Ping Ye qi-tian sun qian Gao State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China

The explosive reaction degree and protection from explosions are concerns in the military *** this work,the reaction degree of the composition B explosive was investigated ***-layered compound structures were used as barriers to weaken the blast loads.A comprehensive experiment using a high-speed camera and image processing techniques,side witness plates,and bottom witness plates was *** the experimental fragment velocities,fragment piercing patterns,and damage characteristics,the reaction degree of the explosive impeded by different multi-layered compound structures could be precisely *** parameters of the explosive obstructed by compound structures were obtained by theoretical analysis and numerical *** the common method in which the explosive reaction degree is only distinguished based on the initial pressure amplitude transmitted into the explosive,a following shock wave reflected from the side steel casing was also *** detonation growth paths in the explosive ***,all these shock wave propagation characteristics must be considered to analyze the explosive response impeded by compound structures.

关键词： Reaction degree Explosive protection Compound structure Comprehensive experiment

Facile synthesis of hollow Ti2Nb10O29 microspheres for high-rate anode of Li-ion batteries

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Science China Chemistry 2018年第6期61卷 670-676页

作者： Yong-Gang sun tian-qi sun Xi-Jie Lin Xian-Sen Tao Dong Zhang Chen Zeng An-Min Cao Li-Jun Wan Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China College of Food Science & Technology Huazhong Agricultural University Wuhan 430070 China

Titanium niobium oxides emerge as promising anode materials with potential for applications in lithium ion batteries with high safety and high energy ***,the innate low electronic conductivity of such a composite oxide seriously limits its practical capacity,which becomes a serious concern especially when a high rate charge/discharge capability is ***,using a modified template-assisted synthesis protocol,which features an in-situ entrapment of both titanium and niobium species during the formation of polymeric microsphere followed by a pyrolysis process,we succeed in preparing hollow microspheres of titanium niobium oxide with high efficiency in structural *** used as an anode material,the structurally-controlled hollow sample delivers high reversible capacity(103.7 m A h g^(-1)at 50 C)and extraordinary cycling capability especially at high charge/discharge currents(164.7 m A h g^(-1)after 500 cycles at 10 C).

关键词： hollow microspheres Ti2Nb10O29 anode materials high rate capability Li-ion batteries

Prostate cancer risk prediction models in Eastern Asian populations:current status,racial difference,and future directions

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Asian Journal of Andrology 2020年第2期22卷 158-161页

作者： Bi-Ming He Rui Chen tian-qi sun Yue Yang Chun-Lei Zhang Shan-Cheng Ren Xu Gao Ying-Hao sun Department of Urology Changhai HospitalSecond Military Medical UniversityShanghai 200433China

Prostate cancer(PCa)risk calculators(RCs)with prostate-specific antigen(PSA)and other risk factors can greatly improve the accurate prediction of potential risk of PCa compared to *** European Randomized Study of Screening for PCa Risk Calculator(ERSPC-RC)and the Prostate Cancer Prevention Trial Risk Calculator(PCPT-RC)are developed on the Western ***,the Western RCs showed limited diagnostic efficacy in the Eastern Asian population,mainly due to racial differences between the two *** aimed to review the application of Western RCs and Eastern Asian RCs in Eastern Asian cohorts and to identify the characteristics and efficacy of these RCs.

关键词： Asians nomogram prediction models prostate cancer risk prediction

Studies on Increasing the Activity of Selenium-Containing Abzyme (Ⅰ)——Synthesis, Characterization and Properties of Hapten and Antigen

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Chemical Research in Chinese Universities 1995年第2期11卷 150-154页

作者： DING Lan (Laboratory oj Rare Earth Chemistry and Physics,Changchun Instituteof Applied Chemistry,Academia Sinica,Changchun,130024)ZHANG Guang-tian,sun qi-an,ZHU Zhen-qi and LUO Gui-min (The National Laboratory of Enzyme Engineering,Jilin University,Changchun,130023)

The thiol group of glutathione (GSH) reacts specifically with 2.4-di-m-trochlorobenzene to give S-substituted dinitrophenyl glutathione (GSH-S-DNP);two carboxyl groups of GSH-S-DNP were further esterified by n-butanol to produce the hapten,multisubstrate analog GSH-S-DNP Butyl Ester (GSH-S-DNP BE).The primary structure of the hapten was characterized by the free ammo group analysis,1H NMR,IR determinations and the elemental *** hapten was then conjugated to bovine serum albumin (BSA) in the presence of *** reaction mixture was purified by Ultrogel AcA54 coluni chromatography to give the *** an average,25 haptens were bound to each BSA *** analysis showed that the average molecular weight of the antigen was 87 *** spectrum showed that the α-helix content of the antigen increased.

关键词： Glutathione peroxidase Abzyme Multisubstrate analog Antigen Hapten

Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie qi tian Tang Yunfan Zhang Zhiyuan Ma Jingwen sun Liang Xue Wenyao Zhang Pan Xiong Xin Wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Lithium-sulfur batteries Staged dendrite suppression Shuttle effect Surface-negatively-charged nanodiamond

Flexible molecules dedicate to release strain of inverted inorganic perovskite solar cell

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Journal of Energy Chemistry 2025年第1期100卷 87-93页

作者： Hongrui sun Sanlong Wang Pengyang Wang Yali Liu Shanshan qi Biao Shi Ying Zhao Xiaodan Zhang Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center State Key Laboratory of Photovoltaic Materials and CellsNankai University Key Laboratory of Photoelectronic Thin Film Devices and Technology of tianjin Haihe Laboratory of Sustainable Chemical Transformations Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Collaborative Innovation Center of Chemical Science and Engineering (tianjin)

The tensile strain in inorganic perovskite films induced by thermal annealing is one of the primary factors contributing to the inefficiency and instability of inorganic perovskite solar cells （IPSCs）,which reduces the defect formation ***,a flexible molecule 5-maleimidovaleric acid （5-MVA） was introduced as a strain buffer to release the residual strain of *** anhydride and carboxyl groups in 5-MVA interact strongly with the uncoordinated Pb2+through Lewis acid-base reaction,thus tightly“pull”the perovskite *** in-between soft carbon chain increased the structural flexibility of CsPbI2.85Br0.15perovskite materials,which effectively relieved the intrinsic internal strain of CsPbI2.85Br0.15,resisted the corrosion of external strain,and also reduced the formation of defects such as VIand *** addition,the introduction of 5-MVA improved crystal quality,passivated residual defects,and narrowed energy level ***,power conversion efficiency （PCE） of NiOxbased inverted IPSCs increased from 19.25% to 20.82% with the open-circuit voltage enhanced from 1.164 V to 1.230 *** release of strain also improved the stability of CsPbI2.85Br0.15perovskite films and devices.

关键词： Inverted inorganic perovskite solar cells Flexible molecules Strain release Crystallization Energy barrier High PCE

不同合成途径磁性Fe_3O_4颗粒体系的组成结构特性研究

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食品科技 2016年第11期41卷 210-214页

作者：李天琪孙宁胡飞华南理工大学食品科学与工程学院广州510640

通过化学共沉淀法、水热法和超声波化学法3种不同途径制备Fe3O4超顺磁性纳米颗粒,并通过TEM、IR、XRD、PPMS等研究了颗粒形貌、结构及特性。在n(Fe3+)/n(Fe2+)物质的量比1.6,氨水为共沉淀剂,p H9条件下制备前驱物,使用上述3种方法在适... 详细信息

通过化学共沉淀法、水热法和超声波化学法3种不同途径制备Fe3O4超顺磁性纳米颗粒,并通过TEM、IR、XRD、PPMS等研究了颗粒形貌、结构及特性。在n(Fe3+)/n(Fe2+)物质的量比1.6,氨水为共沉淀剂,p H9条件下制备前驱物,使用上述3种方法在适宜环境下均能制得Fe3O4颗粒。结果表明3种方法均制备了平均粒径小、饱和磁化强度高的Fe3O4超顺磁性纳米颗粒体系。水热法制成的颗粒磁学性能相对更好,化学共沉淀法制备的颗粒分散状态和晶型结构更为优良,3种途径制备的颗粒体系表面均有活性高的羟基,有利于其表面改性及功能基团修饰。独特性能的Fe3O4超顺磁性纳米颗粒可被广泛地应用于固定化酶载体等领域。

关键词：纳米Fe3O4 超顺磁性水热法化学共沉淀法超声波化学法

Metal nanoparticles decorated CoFe-(oxy)hydroxysulfides nanosheets fabricated by a general strategy for electrocatalytic water splitting

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Journal of Energy Chemistry 2025年第1期100卷 26-38页

作者： Xiaodong Yang Haochen Shen Xiaoming Xiao Zhichao Li qi Zhou Wei Yang Bin Jiang Yongli sun Luhong Zhang Zhenhua Yan School of Chemical Engineering and Technology Tianjin University Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University

This study presents a novel method to fabricate metal-decorated,sulfur-doped layered double hydroxides （M/SLDH） through spontaneous redox and sulfurization *** developed Ag/SLDH and Pt/SLDH catalysts with abundant heterogeneous interfaces and hierarchical nanostructures demonstrated outstanding oxygen evolution reaction （OER） and hydrogen evolution reaction （HER） performance,achieving low overpotentials of 212 and 35 mV at 10 mA cm-2in 1 M KOH,*** both anode and cathode in water splitting,they required only 1.47 V to reach 10 mA cm-2and exhibited high structural robustness,maintaining stability at 1000 mA cm-2for 300 ***-situ Raman analysis revealed that the synergistic effects of metal nanoparticles and S doping significantly promote the transformation into the S-Co1-xFexOOH layer,which serves as the active phase for water ***,ultraviolet photoelectron spectroscopy （UPS） and density functional theory （DFT） analyses indicated that incorporating metal nanoparticles and S doping increase electron density near the Fermi level and reduce reaction energy barriers,thus enhancing intrinsic OER and HER *** study provides a scalable strategy for synthesizing high-performance electrocatalysts for water splitting,with promising potential for broader applications.

关键词： LDH Spontaneous reaction Metal nanoparticles Water splitting

A matrix metalloproteinase-responsive hydrogel system controls angiogenic peptide release for repair of cerebral ischemia/reperfusion injury

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Neural Regeneration Research 2025年第2期20卷 503-517页

作者： qi Liu Jianye Xie Runxue Zhou Jin Deng Weihong Nie Shuwei sun Haiping Wang Chunying Shi Department of Human Anatomy Histology and EmbryologySchool of Basic MedicineQingdao UniversityQingdaoShandong ProvinceChina Department of Neurology The Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina Department of General Practice The Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina

Vascular endothelial growth factor and its mimic peptide KLTWQELYQLKYKGI(QK)are widely used as the most potent angiogenic factors for the treatment of multiple ischemic ***,conventional topical drug delivery often results in a burst release of the drug,leading to transient retention(inefficacy)and undesirable diffusion(toxicity)in ***,a drug delivery system that responds to changes in the microenvironment of tissue regeneration and controls vascular endothelial growth factor release is crucial to improve the treatment of ischemic *** metalloproteinase-2(MMP-2)is gradually upregulated after cerebral ***,vascular endothelial growth factor mimic peptide QK was self-assembled with MMP-2-cleaved peptide PLGLAG(TIMP)and customizable peptide amphiphilic(PA)molecules to construct nanofiber hydrogel ***-TIMP-QK was found to control the delivery of QK by MMP-2 upregulation after cerebral ischemia/reperfusion and had a similar biological activity with vascular endothelial growth factor in *** results indicated that PA-TIMP-QK promoted neuronal survival,restored local blood circulation,reduced blood-brain barrier permeability,and restored motor *** findings suggest that the self-assembling nanofiber hydrogel PA-TIMP-QK may provide an intelligent drug delivery system that responds to the microenvironment and promotes regeneration and repair after cerebral ischemia/reperfusion injury.

关键词： angiogenesis biomaterial blood-brain barrier cerebral ischemia/reperfusion injury control release drug delivery inflammation QK peptides matrix metalloproteinase-2 neuroprotection self-assembling nanofiber hydrogel

Pulp health and calcific healing of a complicated crown–root fracture with additional root fracture in a maxillary incisor: A case report

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World Journal of Clinical Cases 2025年第3期13卷 42-49页

作者： Na Li Yue-Yue Ren Ying Tang qi Yang tian-tian Meng Song Li Jing Zhang Stomatological Hospital and College Anhui Medical UniversityHefei 230032Anhui ProvinceChina Department of Endodontics The Affiliated Stomatological Hospital of Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina

BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in *** SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in which pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical *** the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival ***-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. It was speculated that the groove was related to thelocalized gingival *** This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.

关键词： Complicated crown-root fracture Multiple root fracture Spontaneous healing Cone-beam computed tomography Long-term follow-up Case report