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High-Efficiency Photo-Induced Charge Transfer for SERS Sensing in N-Doped 3D-Graphene on Si heterojunction

Energy & Environmental Materials 2024年第2期7卷 268-276页

作者： Guanglin Zhang Jie Sun Genwang Wei Shan Zhang zhengyi he Huijuan Wu Bingkun Wang Siwei Yang Guqiao Ding Zhiduo Liu Zhiwen Jin Caichao Ye Gang Wang Department of Microelectronic Science and Engineering School of Physical Science and TechnologyNingbo UniversityNingbo 315211China Department of Biochemistry and Molecular Biology School of Basic Medical SciencesShenzhen UniversityShenzhen 518071China Academy for Advanced Interdisciplinary Studies&Department of Materials Science and Engineering Guangdong Provincial Key Laboratory of Computational Science and Material DesignSouthern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China Centre for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(MOE)School of PhysicsBeijing Institute of TechnologyBeijing 100081China School of Physical Science and Technology&Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education Lanzhou UniversityLanzhou 730000China

Nitrogen-doped three-dimensional graphene(N-doped 3D-graphene)is a graphene derivative with excellent adsorption capacity,large specific surface area,high porosity,and optoelectronic ***,N-doped 3D-graphene/Si heterojunctions were grown in situ directly on silicon(Si)substrates via plasma-assisted chemical vapor deposition(PACVD),which is promising for surface-enhanced Raman scattering(SERS)substrates *** analyses of theoretical simulation,incorporating N atoms in 3D-graphene are beneficial to increase the electronic state density of the system and enhance the charge transfer between the substrate and the target *** enhancement of the optical and electric fields benefits from the stronger light-matter interaction improved by the natural nano-resonator structure of N-doped *** as-prepared SERS substrates based on N-doped 3D-graphene/Si heterojunctions achieve ultra-low detection for various molecules:10^(-8)M for methylene blue(MB)and 10^(-9)M for crystal violet(CRV)with rhodamine(R6G)of 10^(10)*** practical detected,10^(-8)M thiram was precisely detected in apple peel *** results indicate that N-doped 3D-graphene/Si heterojunctions based-SERS substrates have promising applications in low-concentration molecular detection and food safety.

关键词： charge transfer DFT simulation N-doped 3D-graphene SERS Thiram detection

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兼顾效率与公平的火电厂碳排放权分配方案

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电网技术 2024年第8期48卷 3382-3390,I0111页

作者：贺正懿闵永智王果夏楷哲苏鹏飞兰州交通大学自动化与电气工程学院甘肃省兰州市730070

合理分配碳排放权对于火电厂实现低碳发展至关重要,然而如何兼顾效率和公平是碳排放权分配的难点。通过分析目前火电厂的效率分配准则和公平分配准则,该文提出了解决效率和公平分配争议的碳排放权分配机制,将火电厂碳排放控制总量分为... 详细信息

合理分配碳排放权对于火电厂实现低碳发展至关重要,然而如何兼顾效率和公平是碳排放权分配的难点。通过分析目前火电厂的效率分配准则和公平分配准则,该文提出了解决效率和公平分配争议的碳排放权分配机制,将火电厂碳排放控制总量分为无争议部分和争议部分。利用数据包络分析(data envelopment analysis,DEA)建立无争议(效率)碳排权分配模型,实现计及火电厂减排潜力和生产能力基础上无争议部分碳排放控制总量的效率分配;利用多公平准则、一致同意选举和迭代机制建立争议(公平)碳排放权分配模型,实现了争议部分碳排放控制总量的公平分配;并给出兼顾效率和公平的碳排放权分配算法。算例分析表明所提分配方案可以满足公平分配和效率分配的主要原则,符合火电厂的发展需求。

关键词：碳排放权效率与公平塔木德求偿权数据包络分析

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页岩气储层多期构造应力场反演与裂缝演化

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油气藏评价与开发 2024年第4期14卷 560-568页

作者：王嘉伟张伯虎胡尧何政毅胡欣欣陈伟罗超西南石油大学地球科学与技术学院四川成都610500 西南石油大学油气藏地质及开发工程全国重点实验室四川成都610500 中国石油西南油气田公司页岩气研究院四川成都610056

川南泸州区块五峰组—龙马溪组的页岩气蕴藏量大,构造运动使地应力局部集中,从而引起裂缝和断层的产生,对页岩气的勘探开发有较大影响。为了优选页岩气勘探区,采用地震综合资料、古构造图和岩石力学参数测试等方法,运用神经网络算法和... 详细信息

川南泸州区块五峰组—龙马溪组的页岩气蕴藏量大,构造运动使地应力局部集中,从而引起裂缝和断层的产生,对页岩气的勘探开发有较大影响。为了优选页岩气勘探区,采用地震综合资料、古构造图和岩石力学参数测试等方法,运用神经网络算法和地质力学建模方法,对研究区多期古构造应力场进行反演,并对应力影响下的储层裂缝发育规律进行预测。研究结果表明:采用数值模拟和神经网络算法,可以进行多期构造作用下的地应力场反演。多期构造运动使地应力发生调整变化,地层背斜部位应力较为集中,背斜核部受到强烈构造作用而发生破裂,应力逐步释放;多期构造运动使储层岩石承受的应力逐步变化,易出现破裂带而形成断层,应力逐步减小;原有断层周边裂缝发育较为强烈,易出现应力衰减区域,从而出现多而短的小型裂缝。现今应力场受多期构造运动综合影响,分布较复杂,裂缝发育规律性不强,对页岩气钻井、开发等影响较大。研究成果对深层页岩气的勘探开发具有一定的指导意义。

关键词：页岩气储层多期构造运动应力场反演裂缝演化神经网络算法

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Welding TiB_2 Ceramies and Metai Mo with Combustion Reaction Technology

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Journal of Materials Science & Technology 2004年第6期20卷 763-766页

作者： Daihua he, zhengyi FU and Qingjie ZHANGState Key Lab. of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China Lab. of Adv. Technol. for Mat. Proc. Wuhan Univ. of Technol. Wuhan 430070 China

Combustion reaction welding, one promising method to weld ceramies and metals, was used to weld TiB2 and Mo. The results showed that the reacted products through combustion reaction were TiB2 and MoB when the Mo contents in reactants were 20 wt pct and 40 wt pct while there was Mo besides MoB and TiB2 when there were 60 wt pct and 80 wt pct Mo in reactants. Diffusion of elements occurred at the interfaces of the two substrates. The interfaces between the reacted and the two substrates were indistinct after being welded. The welding temperature strongly affected properties of the samples. The value of bending strength of the sample with 80 wt pct Mo in reactant welded at 1500℃ was the highest, 368.52 MPa. The highest value of shear strength among all the samples was that of the one with 40 wt pct Mo in reactant vvelded at 1500℃, 50.97 MPa.

关键词： Combustion reaction welding TiB_2 Mo

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机车牵引齿轮系统混沌运动的径向基函数神经网络控制

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应用技术学报 2024年第2期24卷 215-222页

作者：卫晓娟陶幸李静李宁洲何正义周方伟上海应用技术大学轨道交通学院上海201418

针对HXD2牵引齿轮系统运行性能监控需求,建立了单自由度牵引齿轮系统动力学模型并结合分岔图、相图和Poincaré截面图分别分析了阻尼系数、啮合刚度的变化对系统周期性响应的影响。基于径向基函数神经网络设计了混沌控制器,同时控制器... 详细信息

针对HXD2牵引齿轮系统运行性能监控需求,建立了单自由度牵引齿轮系统动力学模型并结合分岔图、相图和Poincaré截面图分别分析了阻尼系数、啮合刚度的变化对系统周期性响应的影响。基于径向基函数神经网络设计了混沌控制器,同时控制器的参数用量子粒子群算法进行优化,并通过对阻尼系数施加微幅扰动,将系统混沌运动控制为稳定的周期运动。

关键词：机车牵引齿轮径向基函数神经网络量子粒子群算法混沌控制

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Localizing vitamin-C through nanoconfinement enables high-rate CO_(2) electrolysis to ethylene

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Science China Materials 2024年第3期67卷 1006-1008页

作者： zhengyi Qian Shaojun Guo School of Materials Science and Engineering Peking UniversityBeijing 100871China

The electrosynthesis of value-added fuels and chemicals from carbon dioxide reduction reaction(CO_(2)RR)is a promising approach for realizing the objectives of carbon neutrality[1].Nevertheless,the current production of desirable multicarbon(C_(2+))chemicals,such as ethylene(C_(2)H_(4)),still encounters challenges related to low selectivity,low current density,and the requirement for high-purity feeding gas[2].

关键词： enable purity dioxide

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Reproductive biology of hemitripterus villosus in the Bohai Strait,China

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Journal of Oceanology and Limnology 2024年第3期42卷 881-892页

作者： Ping SUN Song QIN zhengyi LIU Longchuan ZHUANG Key Laboratory of Coastal Biology and Biological Resource Utilization Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China

To understand the reproductive biology of hemitripterus villosus in the Bohai Strait,and fill the key knowledge gap in verifying reproductive seasonality and documenting gonadotropin dependent reproductive cycle of this species,a year-round detail study was conducted for the first *** total,263 individuals were randomly sampled off the coasts of the Bohai *** show that and the overall female-to-male ratio(1.35:1)did not differ significantly from the 1:1 sex *** length and weight relationship for females and males were regressed,depicting an isometric growth for both *** reproductive phases of the complete gonadotropin dependent reproductive cycle in both sexes were *** monthly variations in the gonadosomatic and hepatosomatic indexes for both sexes further indicated that this species spawns a single batch of eggs per year and the peak spawning period is from October to *** average diameter of eggs ranged from 2.10 to 3.57 *** length at first sexual maturity was 224.87 mm for females and 241.26 mm for *** positive relationships between absolute fecundity and fish size,and also gonadal weight were *** from the Bohai Strait exhibited smaller body size,smaller egg diameter,lower gonadosomatic index,lower absolute fecundity,and higher population extinction risk than the other populations’studied *** findings contribute to understanding the status of this isolated westernmost population,and we emphasize that more efficient protection measures for the species and control measures are urgently required to improve the coastal environment in the Bohai Strait.

关键词： hemitripterus villosus Bohai Strait fecundity length at first maturity reproductive seasonality

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Influencing factors and solution strategies of chimeric antigen receptor T-cell therapy(CAR–T)cell immunotherapy

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Oncology Research 2024年第9期32卷 1479-1516页

作者： zhengyi WANG LIANG ZHOU XIAOYING WU Department of Institute of Laboratory Animal Sciences Sichuan Provincial People’s HospitalUniversity of Electronic Science and Technology of ChinaChengduChina Ministry of Education and Training Chengdu Second People’s HospitalChengduChina

Chimeric antigen receptor T-cesll therapy(CAR–T)has achieved groundbreaking advancements in clinical application,ushering in a new era for innovative cancer ***,the challenges associated with implementing this novel targeted cell therapy are increasingly *** in the clinical management of solid tumors,obstacles such as the immunosuppressive effects of the tumor microenvironment,limited local tumor infiltration capability of CAR–T cells,heterogeneity of tumor targeting antigens,uncertainties surrounding CAR–T quality,control,and clinical adverse reactions have contributed to increased drug resistance and decreased compliance in tumor *** factors have significantly impeded the widespread adoption and utilization of this therapeutic *** this paper,we comprehensively analyze recent preclinical and clinical reports on CAR–T therapy while summarizing crucial factors influencing its ***,we aim to identify existing solution strategies and explore their current research *** this review article,our objective is to broaden perspectives for further exploration into CAR–T therapy strategies and their clinical applications.

关键词： Chimeric antigen receptor T-cell therapy(CAR-T) Tumor targeting therapy Influencing factor Solution strategies

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Stability-Considered Lane Keeping Control of Commercial Vehicles Based on Improved APF Algorithm

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Chinese Journal of Mechanical Engineering 2024年第1期37卷 114-129页

作者： Bin Tang zhengyi Yang Haobin Jiang Ziyan Lin Zhanxiang Xu Zitian Hu Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China

Regarding the lane keeping system,path tracking accuracy and lateral stability at high speeds need to be taken into account especially for commercial vehicles due to the characteristics of larger mass,longer wheelbase and higher mass *** improve the performance mentioned above comprehensively,the control strategy based on improved artificial potential field(APF)algorithm is *** the paper,time to lane crossing(TLC)is introduced into the potential field function to enhance the accuracy of path tracking,meanwhile the vehicle dynamics parameters including yaw rate and lateral acceleration are chosen as the repulsive force field *** lane keeping controller based on improved APF algorithm is designed and the stability of the control system is proved based on Lyapunov *** addition,adaptive inertial weight particle swarm optimization algorithm(AIWPSO)is applied to optimize the gain of each potential field *** co-simulation results indicate that the comprehensive evaluation index respecting lane tracking accuracy and lateral stability is reduced ***,the proposed control strategy is verified by the HiL *** provides a beneficial reference for dynamics control of commercial vehicles and enriches the theoretical development and practical application of artificial potential field method in the field of intelligent driving.

关键词： Lane keeping control Commercial vehicles Lateral stability Artificial potential field AIWPSO

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Multimodal Fusion of Brain Imaging Data: Methods and Applications

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Machine Intelligence Research 2024年第1期21卷 136-152页

作者： Na Luo Weiyang Shi zhengyi Yang Ming Song Tianzi Jiang Brainnetome Center and National Laboratory of Pattern Recognition Institute of AutomationChinese Academy of SciencesBeijing 100190China School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100049China Center for Excellence in Brain Science and Intelligence Technology Institute of AutomationChinese Academy of SciencesBeijing 100190China Research Center for Augmented Intelligence Zhejiang LaboratoryHangzhou 311100China

Neuroimaging data typically include multiple modalities,such as structural or functional magnetic resonance imaging,dif-fusion tensor imaging,and positron emission tomography,which provide multiple views for observing and analyzing the *** lever-age the complementary representations of different modalities,multimodal fusion is consequently needed to dig out both inter-modality and intra-modality *** the exploited rich information,it is becoming popular to combine multiple modality data to ex-plore the structural and functional characteristics of the brain in both health and disease *** this paper,we first review a wide spectrum of advanced machine learning methodologies for fusing multimodal brain imaging data,broadly categorized into unsupervised and supervised learning *** by this,some representative applications are discussed,including how they help to under-stand the brain arealization,how they improve the prediction of behavioral phenotypes and brain aging,and how they accelerate the biomarker exploration of brain ***,we discuss some exciting emerging trends and important future ***,we intend to offer a comprehensive overview of brain imaging fusion methods and their successful applications,along with the chal-lenges imposed by multi-scale and big data,which arises an urgent demand on developing new models and platforms.

关键词： Multimodal fusion supervised learning unsupervised learning brain atlas cognition brain disorders

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