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Continental Dynamics 1996年第2期 134-138+138+140-145页

作者： Shen Kun(Shandong Institute of Geological Sciences, Jinan 250013, China)xu Zhiqin xu huifen and zhang jianxin(Institute of Geology Chinese Academy of Geological Sciences, Beijing 100037, China)

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关键词： subduction complex fluid inclusion

The Zoulang Nanshan Caledonian Subduct ion Complex in the Northern Qilian Mountains and Its Dynamics

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Acta Geologica Sinica(English Edition) 1994年第3期68卷 225-241页

作者： xu Zhiqin, xu huifen, zhang jianxin, Li Haibing, Zhu Zhizhi, Qu Jingchuan,Institute of Geology, Chinese Academy of Geological Sciences, BeijingChen Daizhang, Chen Jinlu, China University of Geosciences, Beijingand Yang KaichunNo. 2 Q ilian Geological Party, Bureau of Geology and Mineral Resources of Q inghai Province, Q ilian County, Q inghai Chinese Academy of Geological Sciences Beijing China

The front of the Zoulang Nanshan Caledonian volcanic island arc zone in the northern Qilian Mountains is a forearc accretionary terrane, composed of multiple accretionary volcanic island arcs, flysch accretionary wedges,high-pressure metamorphosed detachment zones and remnants of ophiolites. It resulted from the northeastward subduction of the Early Palaeozoic Qilan oceanic crust beneath the Alxa block. High-pressure metamorphism, which occurred during the subduction, progressed through three stages: the initial stage of medium T-high P,the main stage of temperature decrease and pressure increase, and the lag stage of pressure decrease and temperature increase. Finally the paper presents a retrotrench subduction dynamic model indicative of northward subduction of the central Qilian block and southward accretion of the Alxa block during the period of 450-500 Ma.

关键词： subduction complex accretionary terrane multiple structure retrotrench subduction dynamics

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Exciting lattice oxygen of nickel–iron bi-metal alkoxide for efficient electrochemical oxygen evolution reaction

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Journal of Energy Chemistry 2024年第1期88卷 194-201,I0005页

作者： Saihang zhang Senchuan Huang Fengzhan Sun Yinghui Li Li Ren Hao xu Zhao Li Yifei Liu Wei Li Lina Chong jianxin Zou National Engineering Research Center of Light Alloy Net Forming&State Key Laboratory of Metal Matrix Composites Center of Hydrogen ScienceSchool of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Department of Chemistry Laboratory of Advanced MaterialsShanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsiChEM and State Key Laboratory of Molecular Engineering of PolymersCollege of Chemistry and MaterialsFudan UniversityShanghai 200433China

High efficiency,cost-effective and durable electrocatalysts are of pivotal importance in energy conversion and storage *** electro-oxidation of water to oxygen plays a crucial role in such energy conversion ***,we report a robust method for the synthesis of a bimetallic alkoxide for efficient oxygen evolution reaction(OER)for alkaline electrolysis,which yields current density of 10 mA cm^(-2)at an overpotential of 215 mV in 0.1 M KOH *** catalyst demonstrates an excellent durability for more than 540 h operation with negligible degradation in *** spectra revealed that the catalyst underwent structure reconstruction during OER,evolving into oxyhydroxide,which was the active site proceeding OER in alkaline ***-situ synchrotron X-ray absorption experiment combined with density functional theory calculation suggests a lattice oxygen involved electrocatalytic reaction mechanism for the in-situ generated nickel–iron bimetal-oxyhydroxide *** mechanism together with the synergy between nickel and iron are responsible for the enhanced catalytic activity and *** findings provide promising strategies for the rational design of nonnoble metal OER catalysts.

关键词： Oxygen evolution reaction Nickel-iron bi-metal alkoxide Lattice oxygen-mediated reaction mechanism Alkaline electrolysis Electrocatalysts

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Antibody-platinum(IV)prodrugs conjugates for targeted treatment of cutaneous squamous cell carcinoma

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Journal of Pharmaceutical Analysis 2024年第3期14卷 389-400页

作者： Xiangye Yin Yingjie Zhuang Haiqin Song Yujian xu Fan zhang jianxin Cui Lei Zhao Yingjie Yu Qixu zhang Jun Ye Youbai Chen Yan Han Department of Plastic and Reconstructive Surgery The First Medical CenterChinese PLA General HospitalBeijing100853China Department of General Surgery Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai200023China State Key Laboratory of Organic-Inorganic Composites Beijing Laboratory of Biomedical MaterialsBeijing University of Chemical TechnologyBeijing100029China Department of Plastic Surgery University of Texas MD Anderson Cancer CenterHoustonTX77030USA State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing100050China

Antibody-drug conjugates(ADCs)are a new type of targeting antibodies that conjugate with highly toxic anticancer drugs via chemical linkers to exert high specificity and efficient killing of tumor cells,thereby attracting considerable attention in precise oncology ***(Cet)is a typical antibody that offers the benefits of good targeting and safety for individuals with advanced and inoperable cutaneous squamous cell carcinoma(cSCC);however,its anti-tumor activity is limited to a single ***(CisPt)shows good curative effects;however,its adverse effects and non-tumor-targeting ability are major *** this study,we designed and developed a new ADC based on a new cytotoxic platinum(IV)prodrug(C8Pt(IV))and *** so-called antibody-platinum(IV)prodrugs conjugates,named Cet-C8Pt(IV),showed excellent tumor targeting in ***,it accurately delivered C8Pt(IV)into tumor cells to exert the combined anti-tumor effect of Cet and ***,metabolomic analysis showed that Cet-C8Pt(IV)promoted cellular apoptosis and increased DNA damage in cSCC cells by affecting the vitamin B6 metabolic pathway in tumor cells,thereby further enhancing the tumor-killing ability and providing a new strategy for clinical cancer treatment using antibody-platinum(IV)prodrugs conjugates.

关键词： Antibody drug conjugate Cutaneous squamous cell carcinoma DNA damage Platinum drug Targeted therapy

Demonstration of LDPC-coded PS-64QAM OFDM employing novel bit-class distribution matching in a W-band RoF system

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CHINESE OPTICS LETTERS 2024年第8期22卷 080602-080602页

作者： Zhao, Haitao xu, Bangning xun, Wei Ren, jianxin Chen, Shuaidong zhang, Long Zhao, Li Liu, Bo Nanjing Univ Posts & Telecommun Sch Commun & Informat Engn Nanjing 210003 Peoples R China Fudan Univ Key Lab Informat Sci Electromagnet Waves MoE Shanghai 200433 Peoples R China Nanjing Univ Informat Sci & Technol Inst Opt & Elect Nanjing 210044 Peoples R China

In this work, we proposed and experimentally demonstrated a novel probabilistic shaping (PS) 64-ary quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) with low-density parity-check (LDPC)-coded modulation in a W-band radio-over-fiber (RoF) system using envelope detection. The proposed PS scheme has the advantages of no complex multiplication and division operations and low hardware implementation complexity. In our experiments, the two-stage bit weight distribution matching-based PS-64QAM OFDM signals with a rate of 28.13 Gb/s transmission over 4 m wireless + 45-km standard single-mode fiber transmission can be achieved. The system performance is investigated under one LDPC code rate (3/4) and two PS parameter values (k k = 3 and 9). The experimental results show that the receiver power sensitivity and the system fiber nonlinear effect tolerance can be significantly improved compared with uniformly distributed OFDM signals.

关键词： probabilistic shaping two-stage bit weight distribution matching orthogonal frequency division multiplexing W-band radio-over-fiber system TRANSMISSION FIBER

Permeability and selectivity synergistically enhanced nanofluidic membrane for osmotic energy harvesting

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Carbon Energy 2024年第8期6卷 14-24页

作者： Jundong Zhong Tingting xu Hongyan Qi Weibo Sun Shuang Zhao Zhe Zhao Yirong Sun Youliang Zhu jianxin Mu Haibo zhang xuanbo Zhu Zhenhua Jiang Lei Jiang National and Local Joint Engineering Laboratory for Synthetic Technology of High‐Performance Polymer Jilin UniversityChangchunJilinChina State Key Laboratory of Supramolecular Structure and Materials Jilin UniversityChangchunJilinChina Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education Jilin UniversityChangchunJilinChina CAS Key Laboratory of Bio‐inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijingChina

For the porous‐membrane‐based osmotic energy generator,the potential synergistic enhancement mechanism of various key parameters is still controversial,especially because optimizing the trade‐off between permeability and selectivity is still a ***,to construct a permeability and selectivity synergistically enhanced osmotic energy generator,the twodimensional porous membranes with tunable charge density are prepared by inserting sulfonated polyether sulfone into graphene *** of charge density and pore size on the ion transport are explored,and the ionic behaviors in the channel are calculated by numerical *** mechanism of ion transport in the process is studied in depth,and the fundamental principles of energy conversion are *** results demonstrate that charge density and pore size should be matched to construct the optimal ion *** collaborative enhancement strategy of permeability and selectivity has significantly improved the output power in osmotic energy generation;compared to the pure graphene oxide membrane,the composite membrane presents almost 20 times improvement.

关键词： blue energy generator charge tunable graphene oxide ion transport layered nanocomposites

Design and Implementation of USB Key System Based on Dual-Factor Identity Authentication Protocol

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Journal of Electronic Research and Application 2024年第5期8卷 161-167页

作者： jianxin Wang Zifan xu Xiangze Chang Chaoen Xiao Lei zhang Beijing Electronic Science and Technology Institute Beijing 100070China

With the increasing demand for information security,traditional single-factor authentication technology can no longer meet security *** this end,this paper proposes a Universal Serial Bus(USB)Key hardware and software system based on a two-factor authentication protocol,aiming to improve the security and reliability of *** paper first analyzes the current status and technical principles of USB Key-related research domestically and internationally and designs a two-factor authentication protocol that combines impact/response authentication and static password *** system consists of a host computer and a USB Key *** host computer interacts with the USB Key through a graphical user *** Secure Hash Algorithm 1(SHA-1)and MySQL database are used to implement the authentication *** results show that the designed two-factor authentication protocol can effectively prevent replay attacks and information tampering,and improve the security of *** the corresponding USB Key is not inserted,the system will prompt that the device is not *** the USB Key is inserted,user identity is confirmed through two-factor verification,which includes impact/response authentication and static password authentication.

关键词： Information security USB Key Impact/response authentication Static password authentication

Improving sulfur transformation of lean electrolyte lithium-sulfur battery using nickel nanoparticles encapsulated in N-doped carbon nanotubes

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Electron 2024年第1期2卷 95-105页

作者： Ze zhang Yuqing xu Donggen Xiong Ji Yu jianxin Cai Yizhong Huang Zhenyu Yang School of Chemistry and Chemical Engineering Nanchang UniversityNanchangChina School of Materials Science and Engineering Nanyang Technological UniversitySingaporeSingapore

Efficient redox reactions of lean electrolyte lithium-sulfur(Li-S)batteries highly rely on rational catalyst ***,we report an electrocatalyst based on N-doped carbon nanotubes(CNT)-encapsulated Ni nanoparticles(Ni@NCNT)as kinetics regulators for Li-S batteries to propel the polysulfide-involving multiphase ***,such a CNT-encapsulation strategy greatly prevents the aggregation of Ni nanoparticles and enables the extraordinary structural stability of the hybrid electrocatalyst,which guarantees its persistent catalytic activity on sulfur redox *** used as a modified layer on a commercial separator,the Ni@NCNT interlayer contributes to stabilizing S cathode and Li anode by significantly retarding the shuttle *** corresponding batteries with a 3.5 mg cm^(−2)sulfur loading achieve the promising cycle stability with~85%capacity retention at the electrolyte/sulfur ratios of 5 and 3μL mg^(−1).Even at a high loading of 12.2 mg cm^(−2),the battery affords an areal capacity of 7.5 mA h cm^(−2).

关键词： kinetics regulator lean electrolyte lithium-sulfur battery metal nickel nanoparticles N-doped CNT-encapsulated

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地震作用下散粮楼房仓仓壁动态侧压力分析

农业工程学报 2024年第9期40卷 49-58页

作者：许启铿张睿良刘强曹利岗丁永刚王惠芬河南工业大学土木工程学院郑州450001 河南省粮油仓储建筑与安全重点实验室郑州450001 河南工大设计研究院有限公司郑州450001

地震作用下贮料对仓壁产生的动态侧压力是影响散粮楼房仓结构安全的一个重要因素。为此,该研究设计制作了缩尺比例为1:25的三层楼房仓试验模型,进行了3条地震波下不同加载等级的振动台试验,分析获得了贮料地震反应特性、仓壁动态侧压力... 详细信息

地震作用下贮料对仓壁产生的动态侧压力是影响散粮楼房仓结构安全的一个重要因素。为此,该研究设计制作了缩尺比例为1:25的三层楼房仓试验模型,进行了3条地震波下不同加载等级的振动台试验,分析获得了贮料地震反应特性、仓壁动态侧压力变化规律及超压系数,提出了仓壁动态侧压力计算方法。研究表明:不同楼层同一高度处仓壁动态侧压力达到峰值的时间不同步,沿楼房仓高度方向逐步滞后,且其均滞后于对应楼层仓壁加速度峰值时刻;各楼层仓壁动态侧压力逐层增大,每升高一层,增大约29%,且同一楼层的仓壁动态侧压力沿高度逐渐增大,仓壁上部、中部动态侧压力分别是下部的2.5倍、1.4倍;一、二、三层的超压系数最大值依次为2.9、3.4、4.1,且均位于每层仓壁上部位置;通过试验结果验证了所提出的仓壁动态侧压力计算方法的有效性;散粮楼房仓结构抗震设计,应考虑仓壁动态侧压力的影响与不同楼层的差异性。研究成果可为散粮楼房仓的抗震设计提供参考。

关键词：粮食模型散粮楼房仓振动台试验动态侧压力超压系数

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互联电网短路电流在线分析与优化决策方法

电网技术 2024年第5期48卷 2218-2226,I0121页

作者：杨欢欢杨君军徐伟邱建张建新许晓彤中国南方电网电力调度控制中心广东省广州市510623 南瑞集团有限公司(国网电力科学研究院有限公司) 江苏省南京市211106 智能电网保护和运行控制国家重点实验室(南瑞集团有限公司(国网电力科学研究院有限公司)) 江苏省南京市211106

在线分析技术是应对交直流电网短路电流超标和随机波动问题的重要手段。结合调度自动化系统的建模范围和实时数据采集情况,提出在线短路电流计算原则和超标判据;通过日前和实时短路电流多目标逐级优化决策,提升短路电流优化策略对电网... 详细信息

在线分析技术是应对交直流电网短路电流超标和随机波动问题的重要手段。结合调度自动化系统的建模范围和实时数据采集情况,提出在线短路电流计算原则和超标判据;通过日前和实时短路电流多目标逐级优化决策,提升短路电流优化策略对电网时变性和复杂性的适应能力;构建在线短路电流分析和优化控制系统功能架构,通过调度端和厂站端功能集成实现短路电流可靠闭环控制。该方法实现了短路电流精细化分析、综合优化决策和精准闭环控制技术在实际电网的应用,通过对实际电网在线短路电流分析与优化控制系统运行结果的分析,验证了所述方法的有效性和实用性.

关键词：交直流电网短路电流在线分析优化控制功能架构

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