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Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO2 photoreduction

Science China Chemistry 2025年第01期 201-208页

作者： Hui-Feng wang Wen-Jie Shi Yu-Xin Yang Bao-Xia dong Tong-Bu Lu Di-Chang Zhong School of Chemistry and Chemical Engineering Yangzhou University Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and Engineering Tianjin University of Technology

Dinuclear metal synergistic catalysis （DMSC） has been proved powerful in boosting CO2reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework （MOF）,obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center （M-In）,three MOFs with dinuclear homometallic catalytic centers （MM-In）,and three MOFs with dinuclear heterometallic catalytic centers (MM’-In,M/M’=Co（II）,Ni（II）,Zn（II）).It was found that all these MOFs can serve as catalysts for photochemical CO2reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g-1h-1,which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO2reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO2reduction.

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Fusion of Spiral Convolution-LSTM for Intrusion Detection Modeling

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Computers, Materials & Continua 2024年第5期79卷 2315-2329页

作者： Fei wang zhen dong School of Cyberspace Security Gansu University of Political Science and LawLanzhou73000China

Aiming at the problems of low accuracy and slow convergence speed of current intrusion detection models,SpiralConvolution is combined with Long Short-Term Memory Network to construct a new intrusion detection *** dataset is first preprocessed using solo thermal encoding and normalization *** the spiral convolution-Long Short-Term Memory Network model is constructed,which consists of spiral convolution,a two-layer long short-term memory network,and a *** is shown through experiments that the model is characterized by high accuracy,small model computation,and fast convergence speed relative to previous deep learning *** model uses a new neural network to achieve fast and accurate network traffic intrusion *** model in this paper achieves 0.9706 and 0.8432 accuracy rates on the NSL-KDD dataset and the UNSWNB-15 dataset under five classifications and ten classes,respectively.

关键词： Intrusion detection deep learning spiral convolution long and short term memory networks 1D-spiral convolution

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大豆种间杂交F_2代主要品质性状遗传研究初报

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大豆科学 2016年第6期35卷 1032-1036页

作者：曹永强王雅珍董丽杰王文斌宋书宏辽宁省农业科学院作物研究所辽宁沈阳110161

以栽培大豆铁豆67为母本,半野生大豆YZ1621为父本,进行有性杂交,构建大豆种间杂交F2代遗传群体,对群体蛋白质含量、脂肪含量及蛋脂总量等遗传参数进行了分析。结果表明:大豆种间杂交F2代蛋白质含量、脂肪含量及蛋脂总量的遗传分离为连... 详细信息

以栽培大豆铁豆67为母本,半野生大豆YZ1621为父本,进行有性杂交,构建大豆种间杂交F2代遗传群体,对群体蛋白质含量、脂肪含量及蛋脂总量等遗传参数进行了分析。结果表明:大豆种间杂交F2代蛋白质含量、脂肪含量及蛋脂总量的遗传分离为连续离散分布,符合正态分布,其中,脂肪含量和蛋脂总量表现出倾向高值亲本的正态分布;三性状超中亲遗传普遍存在,蛋脂总量超高亲遗传显著,超高亲比例达到66.7%;三性状的遗传方差、标准差均较小,变异系数分别为4.04%、5.13%、2.67%,表明群体内个体间的变异度不高;三性状广义遗传力均达到了55.0%以上。

关键词：大豆种间杂交品质性状遗传

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T2WI与磁共振波谱成像联合用于临床前列腺癌鉴别诊断的价值

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中国医刊 2017年第2期52卷 70-74页

作者：王振强王冬芳朱艳丽浙江省义乌市中心医院CT室浙江义乌322000

目的探讨T_2加权成像(T_2-weighted imaging,T_2WI)联合磁共振波谱成像(magnetic resonance spectrocopy,MRS)运用在前列腺癌(prostate carcinoma,PCa)临床鉴别诊断中的价值。方法选取本院于2014年1月至2016年1月期间收治的80例行磁共振成像(magnetic resonance imaging,MRI)检查并经穿刺活检确诊的PCa患者,所有患者均行T_2WI和MRS扫描,并在MRI检查后进行病理组织学诊断,比较T_2WI、MRS和T_2WI联合MRS诊断PCa的诊断效能。结果 PCa病灶T_2WI表现为边界模糊,片状或结节状或均质低信号,MRS表现为胆碱(Cho)峰升高,枸橼酸盐(Cit)峰下降,两者波峰倒置,局部3个相邻体素Cho/Cit高于1;前列腺增生(benign prostatic hyperplasia,BPH)病灶T_2WI呈斑片状高低混杂影或均匀等/高信号,MRS表现为Cit峰升高,Cho、Cre(肌酸)峰相对降低或升高。MRS、T_2WI联合MRS诊断PCa的灵敏度、特异度和准确度显著高于T_2WI(P<0.05);T_2WI联合MRS的ROC曲线下面积显著高于T_2WI和MRS,差异具有显著性(P<0.05);PCa患者(Cho+Cr)/Cit、Cho/Cit比值显著高于BPH患者(P<0.05)。结论 T_2WI和MRS均可独立用于PCa的鉴别诊断,但联合应用的敏感性和准确性显著提高,诊断效能更好。

关键词： T2加权成像磁共振波谱成像前列腺癌

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Corrosion behavior of additive-manufactured NiFeCrMo alloys in various corrosion media

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Journal of Iron and Steel Research International 2023年第8期30卷 1574-1585页

作者： dong-peng wang Shuai wang zhen Chen Xing-cheng Xie zhen-zhen dong Hong-zhou dong Yi-cheng Wu zhen-guang Liu Wei-li Li Yu-xin wang School of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003JiangsuChina GRIMAT Engineering Institute Co. Ltd.Beijing 101407China GRINM(Guangdong)Institute for New Advanced Materials and Technology Dongguan 528041GuangdongChina School of Mechanical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003JiangsuChina

To understand the corrosion performance of additive-manufactured Ni-based in various corrosion media during the actual engineering application environment,the corrosion properties of NiFeCrMo alloys were investigated in 3.5 wt.%NaCl solution,1 mol/L H2SO_(4) solution,and 1 mol/L KOH solution,using potentiodynamic polarization and electrochemical impedance *** electrochemical measurement results revealed that the additive-manufactured NiFeCrMo alloys have higher corrosion resistance in all three solutions,compared with the as-cast *** results of the scanning electron microscope confirmed that the degree of additive-manufactured NiFeCrMo alloys after potentiostatic polarization in all three solutions is less serious.X-ray photoelectron spectroscopy analysis revealed that the enhancement of the corrosion resistance for the additive-manufactured NiFeCrMo alloys is attributed to the modification of the composition of the passive *** manufactured processing promotes the enrichment of the element of Cr or Mo in the passive film and it suppresses the formation of the oxidation of the element of Fe,leading to higher stability of the passive *** reason for the higher corrosion resistance of the additive-manufactured NiFeCrMo alloys was related to the enrichment of the element of Cr,as well as the lower content of the elements of Ni and Fe near the grain boundaries,which are beneficial to forming a more compact passive *** combined results are essential for the applications of high-strength Ni-based as structural materials in a corrosion environment.

关键词： Ni-based alloy Additive manufacturing Corrosion Passive film Corrosion media

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Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song He Li Li Sai wang Shao-Jiang wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

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An experimental study on spray auto-ignition of RP-3 jet fuel and its surrogates

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Frontiers in Energy 2021年第2期15卷 396-404页

作者： Yaozong DUAN wang LIU zhen HUANG dong HAN Key Laboratory for Power Machinery and Engineering(Ministry of Education) Shanghai Jiao Tong UniversityShanghai 200240China

Jet fuel is widely used in air transportation,and sometimes for special vehicles in ground *** the latter case,fuel spray auto-ignition behavior is an important index for engine operation *** fuel is usually used for fundamental combustion study due to the complex composition of practical *** for jet fuels,two-component or three-component surrogate is usually selected to emulate practical *** spray auto-ignition characteristics of RP-3 jet fuel and its three surrogates,the 70%mol n-decane/30%mol 1,2,4-trimethylbenzene blend(Surrogate 1),the 51%mol n-decane/49%mol 1,2,4-trimethylbenzene blend(Surrogate 2),and the 49.8%mol n-dodecane/21.6%mol iso-cetane/28.6%mol toluene blend(Surrogate 3)were studied in a heated constant volume combustion *** 1 and Surrogate 2 possess the same components,but their blending percentages are different,as the two surrogates were designed to capture the H/C ratio(Surrogate 1)and DCN(Surrogate 2)of RP-3 jet fuel,*** 3 could emulate more physiochemical properties of RP-3 jet fuel,including molecular weight,H/C ratio and *** results indicate that Surrogate 1 overestimates the auto-ignition propensity of RP-3 jet fuel,whereas Surrogates 2 and 3 show quite similar auto-ignition propensity with RP-3 jet ***,to capture the spray auto-ignition behaviors,DCN is the most important parameter to match when designing the surrogate ***,as the ambient temperature changes,the surrogates matching DCN may still show some differences from the RP-3 jet fuel,e.g.,the first-stage heat release influenced by low-temperature chemistry.

关键词： RP-3 jet fuel surrogate spray auto-ignition constant volume combustion chamber

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Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan wang Fan Zhang Xingyu Zhou Qian wang Changyu Liu Yangyang Liu Hui wang Xiaojie Liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 C,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling over 200 cycles at a high 5 C current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate Cathode

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生成式人工智能对数据安全保护的挑战及刑法应对

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河南社会科学 2025年第1期33卷 56-63页

作者：聂立泽王祯中山大学法学院广东广州510006

随着生成式人工智能在多个领域的应用,数据安全保护面临新的挑战。在数据安全保护的路径选择上,传统模式选择以数据主体为锚定权利的基准,在赋予数据主体相关权利的基础上,以告知—同意原则作为数据主体的权利边界,建立涉及刑法、民法... 详细信息

随着生成式人工智能在多个领域的应用,数据安全保护面临新的挑战。在数据安全保护的路径选择上,传统模式选择以数据主体为锚定权利的基准,在赋予数据主体相关权利的基础上,以告知—同意原则作为数据主体的权利边界,建立涉及刑法、民法等多个领域的数据安全制度。但不得不承认,伴随人工智能的发展,这种基于数据主体权利的数据保护模式逐渐表现出认知与结构性困难,需要从路径选择上进行转变。相对于以数据主体权利为核心的保护模式,刑法可以从风险的角度考虑,以贝克的风险社会理论作为理论参考,从承认数据主体具有完全理性转变为承认其具有有限理性,将数据安全保护的主要关注点从数据主体的权利保障转移到数据安全风险的预防和管控。此外,在数据安全保护的实质层面上,生成式人工智能侵害数据法益的行为可以概括为行为人利用或针对生成式人工智能实施的行为,以及生成式人工智能在演化、运行过程中“自主”实施的行为。刑法应以风险作为主要考量因素,结合已有规定对上述两种行为进行评价。

关键词：生成式人工智能风险预防数据安全刑法规制

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Double-stranded DNA-nucleic acid dye complex-sensitized biocatalytic photosynthesis:Base pairing-switched regeneration of nicotinamide cofactor

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Journal of Energy Chemistry 2024年第7期94卷 618-624页

作者： zhen dong Yanying wang Dan Li Peng Wu College of Chemistry Sichuan UniversityChengdu 610064SichuanChina Analytical&Testing Centre State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengdu 610064SichuanChina School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007HenanChina

Photo-biocatalysis,the combination of photosensitization and biocatalysis,is an emerging solution for sunlight-based renewable *** is thus important to develop light antennas with both good light har-vesting and efficient electron ***,the intriguing electrical conductivity of dsDNA and its host effect(for nucleic acid dyes to harvest light)were explored simultaneously to develop a dsDNA-based light antenna for *** SYBR Green I(SG)as the example of the nucleic acid dye,the proposed SG-dsDNA system was found to be capable for visible-light-driven reduced nicotinamide adenine dinucleotide(NADH)regeneration,and the turnover frequency of which(1.35 min^(-1))exceeded most of the existing photocatalytic *** SG can only be hosted by dsDNA,meanwhile dsDNA can be formed through hybridization between single strand DNA and its complementary strand,the pro-posed system adds an extra control of the photocatalytic activity(DNA base pairing-based switch).When integrating the SG-dsDNA system with NADH-dependent horse liver alcohol dehydrogenase(HLADH),successful synthesis of 2-phenylpropanol(a crucial intermediates of profens manufacturing)was achieved.

关键词： Photosynthesis dsDNA SYBRGreenI TICT 2-phenylpropanol

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