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Frontiers of Structural and Civil Engineering 2022年第8期16卷 962-975页

作者： zhi-peng chen Songye ZHU Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

In this paper,the seismic responses and resilience of a novel K-type superelastic shape memory alloy(SMA)self-centring(SC)eccentrically braced frame(EBF)are *** simulation models of the SMA-based SC-EBF and a corresponding equal-stiffness traditional EBF counterpart are first established based on some existing *** twenty-four near-fault ground motions are used to examine the seismic responses of both EBFs under design basis earthquake(DBE)and maximum considered earthquake(MCE)*** fragility and loss analyses are subsequently conducted through incremental dynamic analyses(IDA),and the resilience of the two EBFs are eventually *** resilience assessment basically follows the framework proposed by Federal Emergency and Management Agency(FEMA)with the additional consideration of the maximum residual inter-storey drift ratio(MRIDR).The novel SMA-based SC-EBF shows a much better resilience in the study and represents a promising attractive alternative for future applications.

关键词： shape memory alloy eccentrically braced frame self-centring fragility loss function resilience

High-strength Ti-Al-V-Zr cast alloys designed using α and β cluster formulas

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China Foundry 2023年第1期20卷 23-28页

作者： zhi-hao Zhu Yu-han Liu zhi-peng chen Tian-yu Liu Shuang Zhang Dan-dan Dong Chuang Dong Key Laboratory for Materials Modification by Laser Ionand Electron Beams and School of Materials Science and EngineeringDalian University of TechnologyDalian 116024LiaoningChina State Key Laboratory of Light Alloy Casting Technology for High-end Equipment Shenyang Research Institute of Foundry Co.Ltd.Shenyang 110022China School of Materials Science and Engineering Dalian Jiaotong UniversityDalian 116028LiaoningChina College of Physical Science and Technology Dalian UniversityDalian 116622LiaoningChina

Ti-Al-V-Zr quaternary titanium alloys were designed followingα-{[Al-Ti12](AlTi2)}17-n+β-{[Al-Ti12Zr2](V3)}n,where n=1-7(the number ofβunits),on the basis of the dual-cluster formula of popular Ti-6Al-4V *** an alloying strategy aims at strengthening the alloy via Zr and V co-alloying in theβ-Ti unit,based on the originalβformula[Al-Ti14](V2Ti)of Ti-6Al-4V *** microstructures of the as-cast alloys by copper-mold suction-casting change from pureα(n=1)toα+α’martensite(n=7).When n is 6,Ti-5.6Al-6.8V-8.1Zr alloy reaches the highest ultimate tensile strength of 1,293 MPa and yield strength of 1,097 MPa,at the expense of a low elongation of 2%,mainly due to the presence of a large amount of acicularα’*** specific strength far exceeds that of Ti-6Al-4V alloy by 35%.

关键词： titanium alloy cluster-plus-glue-atom model composition design microstructure mechanical properties

Advanced carbon-based materials for Na,K,and Zn ion hybrid capacitors

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Rare Metals 2023年第3期42卷 719-739页

作者： Jian Zhou Hong-Yu Hu Hong-Qiang Li zhi-peng chen Chang-Zhou Yuan Xiao-Jun He School of Chemistry and Chemical Engineering Anhui University of TechnologyMaanshan 243002China School of Material Science and Engineering University of JinanJinan250022China

Developing electrochemical energy storage devices with high energy and power densities,long cycling life,as well as low cost is of great *** metal-ion capacitors(MICs),commonly consisting of high energy battery-type anodes and high power capacitor-type cathodes,have become a trade-off between batteries and *** efforts have been devoted to searching for high-performance electrode materials due to poor rate capability of anodes,low capacity of cathodes,and interior sluggish kinetic *** materials with large surface area,good electrical conductivity and stability have been considered to be ideal candidates for electrodes of *** this review,the advanced carbon materials directly as cathodes and anodes of MICs are systematically ***,the key structural/chemical factors including the structure engineering,porous characteristics,and heteroatom incorporation for improving electrochemical performance of carbon materials are ***,the challenges and opportunities for future research on carbon materials in MICs are also proposed.

关键词： Metal-ion capacitor(MIC) Carbon materials Electrodes Structural/chemical factors Electrochemical performance

Identification of TSS in the Human Genome Based on a RBF Neural Network

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International Journal of Automation and computing 2006年第1期3卷 35-40页

作者： zhi-Hong peng Jie chen Li-Jun Cao Ting-Ting Gao College of Information Science and Technology Beijing Institute of Technology Beijing 100081 PRC

The identification of functional motifs in a DNA sequence is fundamentally a statistical pattern recognition problem. This paper introduces a new algorithm for the recognition of functional transcription start sites （TSSs） in human genome sequences, in which a RBF neural network is adopted, and an improved heuristic method for a 5-tuple feature viable construction, is proposed and implemented in two RBFPromoter and ImpRBFPromoter packages developed in Visual C＋＋ 6.0. The algorithm is evaluated on several different test sequence sets. Compared with several other promoter recognition programs, this algorithm is proved to be more flexible, with stronger learning ability and higher accuracy.

关键词： Promoter recognition human genome transcription start site RBF neural network.

多源异构数据环境下基于模糊积分融合的公租房退出方法

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运筹与管理 2017年第7期26卷 193-199页

作者：常志朋陈立荣安徽工业大学商学院安徽马鞍山243002 内蒙古大学计算机学院内蒙古呼和浩特010021

为有效解决公租房退出问题,提出一种基于多源异构数据的模糊积分融合退出方法,该退出方法首先给出一种多源异构数据的同构化方法,然后针对常用模糊测度确定方法原理复杂、计算困难的问题,提出一种原理简单、易于计算的模糊测度确定方法... 详细信息

为有效解决公租房退出问题,提出一种基于多源异构数据的模糊积分融合退出方法,该退出方法首先给出一种多源异构数据的同构化方法,然后针对常用模糊测度确定方法原理复杂、计算困难的问题,提出一种原理简单、易于计算的模糊测度确定方法,该模糊测度确定方法利用单个属性的相对重要程度和两两属性之间的交互度计算单个属性的全局重要程度,最后,根据模糊测度的单调性和有界性通过专家逐级打分计算各子属性集的重要程度。实例验证表明所提出的退出方法可行、有效。

关键词：多源异构模糊积分模糊测度公租房

Structural Insights into Repression of the Pneumococcal Fatty Acid Synthesis Pathway by Repressor FabT and Co-repressor Acyl-ACP

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Structural Insights into Repression of the Pneumococcal Fatt...

Ru doping triggering reconstruction of cobalt phosphide for coupling glycerol electrooxidation with seawater electrolysis

中国生物化学与分子生物学会2019年全国学术会议暨学会...

作者： Gang Zuo zhi-peng chen Yong-Liang Jiang Zhongliang Zhu chengtao Ding zhiyong Zhang Yuxing chen Cong-Zhao Zhou Qiong Li Hefei National Laboratory for Physical Sciences at the Microscale and School of Life Sciences University of Science and Technology of China

The Streptococcus pneumoniae fatty acid synthesis pathway is globally controlled at the transcriptional level by repressor FabT and its co-repressor acyl cattier protein(acyl-ACP), the intermediate of phospholipid synthesis. Here, we report the crystal structure of FabT complexed with a 23-bp dsDNA, which indicates that FabT is a weak repressor of low DNAbinding affinity in the absence of acyl-ACP. Modification of ACP with a long-chain fatty acid is necessary for the formation of a stable complex with FabT, mimicking in vitro by cross-linking, which significantly elevates the DNA-binding affinity of FabT. Altogether, we propose a putative working model of gene repression under the double control of FabT and acyl-ACP,elucidating a distinct repression network for Pneumococcus to precisely coordinate fatty acid synthesis.

关键词： co-repressor fatty acid synthesis repression transcription repressor

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Journal of Energy Chemistry 2025年第1期100卷 317-326页

作者： Binglu Deng Jie Shen Jinxing Lu Chuqiang Huang Zhuoyuan chen Feng peng Yunpeng Liu School of Materials Science and Hydrogen Energy Foshan University School of Chemistry and Chemical Engineering Guangzhou University Guangdong Key Laboratory for Hydrogen Energy Technologies

Seawater electrolysis is a promising approach for sustainable energy without relying on precious ***,the large-scale seawater electrolysis is hindered by low catalytic efficiency and severe anode corrosion caused by the harmful *** contrast to the oxygen evolution reaction （OER）and chlorin ion oxidation reaction （ClOR）,glycerol oxidation reaction （GOR） is more thermodynamically and kinetically favorable ***,a Ru doping cobalt phosphide （Ru-CoP2） is proposed as a robust bifunctional electrocatalyst for seawater electrolysis and GOR,for the concurrent productions of hydrogen and value-added *** in situ and ex situ characterization analyses demonstrated that Ru doping featured in the dynamic reconstruction process from Ru-CoP2to Ru-CoOOH,accounting for the superior GOR *** coupling GOR with hydrogen evolution was realized by employing Ru-CoP2as both anode and cathode,requiring only a low voltage of 1.43 V at 100 mA cm-2,which was 250 m V lower than that in alkaline *** work guides the design of bifunctional electrocatalysts for energy-efficient seawater electrolysis coupled with biomass resource upcycling.

关键词： Glycerol electrooxidation Hydrogen evolution Ru doping Cobalt phosphide Bifunctional electrocatalysts

团簇式方法设计具有高比强度的Ti-7Al-2V合金

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Transactions of Nonferrous Metals Society of China 2023年第11期33卷 3364-3375页

作者：朱智浩刘田雨宋梦凡陈志鹏张爽董闯大连理工大学材料科学与工程学院三束材料改性教育部重点实验室大连116024 沈阳铸造研究所有限公司高端装备轻合金铸造技术国家重点实验室沈阳110022 大连交通大学材料科学与工程学院大连116028

基于团簇式设计方法,采用激光增材制造工艺制备一种近α型Ti-7Al-2V合金,其比强度优于Ti-6Al-4V合金的比强度。该合金的成分式为α-{[Al-Ti_(12)](AlTi_(2))}_(15)+β-{[Al-Ti_(14)](V_(3))}_(2):其特征在于α结构单元比例提高为15/17(相对于Ti-6Al-4V的12/17),使合金成分偏向α-Ti;通过V元素合金化,提高了β-Ti结构单元稳定性。该合金具有良好的激光增材制造成形性。沉积态下,该合金的显微组织由细网篮组织区、粗网篮组织区和超细α魏氏组织区构成。其中,粗网篮组织区的表面粗糙度明显低于细网篮组织区和超细α魏氏组织区的表面粗糙度。细网篮组织区的α相分布相比于粗网篮组织区更加均匀。该合金的抗拉强度为971~1005 MPa,屈服强度为891~921 MPa,伸长率为4.5%~6.6%,均与Ti-6Al-4V的相近,尤其是该合金的比强度为224~232 kN·m/kg,优于Ti-6Al-4V合金的比强度。

关键词：钛合金成分设计团簇加连接原子模型激光增材制造力学性能

有机/无机复合型降滤失剂LJ-1的合成及性能评价

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精细化工 2017年第7期34卷 827-833页

作者：孙立君郑勇彭志刚陈大钧许夏斌西南石油大学化学化工学院四川成都610500

nano-Si O_2在γ-氨丙基三乙氧基硅烷(KH-550)偶联剂作用下得到改性nano-Si O_2,再与丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、衣康酸(IA)、二烯丙基二甲基氯化铵(DMDAAC),采用自由基聚合法,合成得到一种有机/无机复合降滤失剂L... 详细信息

nano-Si O_2在γ-氨丙基三乙氧基硅烷(KH-550)偶联剂作用下得到改性nano-Si O_2,再与丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、衣康酸(IA)、二烯丙基二甲基氯化铵(DMDAAC),采用自由基聚合法,合成得到一种有机/无机复合降滤失剂LJ-1。通过正交实验法得到最佳反应条件为:m(AM)∶m(AMPS)∶m(IA)∶m(DMDAAC)∶m(改性Si O_2)=8∶5∶2∶1∶0.96,反应温度65℃,反应时间4 h,引发剂过硫酸铵(APS)加量为单体总质量的1.0%。采用FTIR、~1HNMR对LJ-1降滤失剂结构进行表征,并对其降滤失性进行评价。结果表明,淡水基浆中LJ-1降滤失剂添加量为1.5%(质量分数)时,FLAPI=5.8 mL,具有良好的降滤失性能;盐水基浆中LJ-1降滤失剂添加量为3.0%,FLHTHP=18.4 mL,具有良好的抗盐性;利用扫描电镜(SEM)对钻井液滤饼微观形貌进行观察,发现添加LJ-1钻井液的滤饼坚韧致密并具有致密的网架结构。

关键词：有机/无机复合添加剂降滤失剂评价油田化学品

Rapid and scalable preparation of highly quaternized polymer networks to achieve efficient simultaneous adsorption of iodide and pertechnetate

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Science China Chemistry 2025年第01期 337-349页

作者： Meiyun Xu Song Gu Fulong chen Zhe Zhao peng Liu Daoben Hua State Key Laboratory of Radiation Medicine and Protection School of Radiological and Interdisciplinary Sciences (RAD-X) Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions Soochow University

The efficient separation of fission products,such as TcO4-and I-,holds strategic significance for the management of radioactive wastes and environmental *** this study,we propose an ultrafast strategy for scalable preparation of a highly quaternized organic network to facilitate efficient and synchronous separation of iodide and *** network can be prepared within a few minutes at room temperature,using polyethylenimine and 1,2,4,5-tetrakis（bromomethyl）benzene as building *** chlorine replacement,the network,abundantly decorated with quaternary ammonium groups （Cl@QPN）,exhibits an ultrahigh positive charge density of 7.6 mmol/*** enables the rapid and efficient enrichment of target anions through strong electrostatic Coulomb *** a result,Cl@QPN exhibits significantly higher adsorption rate constants of 0.830 g/（mg min） for ReO4-（a nonradioactive surrogate of TcO4-） and 0.677 g/（mg min） for I-compared to other ***,it possesses high adsorption capacities,reaching 1,681 mg/g for ReO4-and 917.4 mg/g for I-.Cl@QPN also demonstrates good selectivity towards target ions and shows efficient adsorption for99TcO4-.Additionally,Cl@QPN exhibits high dynamic processing capacities,handling up to 3,100 and 7,400 kg of simulated streams per kilogram of material for I-and ReO4-,respectively.

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