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宁夏隆德县梯田建设的做法和经验

中国水土保持 2011年第4期 17-18页

作者：董平章隆德县水务局宁夏隆德756300

针对人多地少、水土流失严重的实际,隆德县委、县政府把治理水土流失、建设基本农田作为改善农业生产条件,实现农民增收、脱贫致富的一项重大措施来抓,取得了明显的生态、经济和社会效益。介绍了隆德县梯田建设的主要做法和经验,包括围... 详细信息

针对人多地少、水土流失严重的实际,隆德县委、县政府把治理水土流失、建设基本农田作为改善农业生产条件,实现农民增收、脱贫致富的一项重大措施来抓,取得了明显的生态、经济和社会效益。介绍了隆德县梯田建设的主要做法和经验,包括围绕一个中心、狠抓两个关键、突出三个重点、注重四个结合。

关键词：水土流失梯田建设综合治理隆德县

Microstructure in Ni80 Fe20/Cu magneticmultilayers and spin valve

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电子显微学报 2000年第1期 17-25页

作者： WANG Wen\|dong\ SUN Hai\|ping\ zhang Ze (Beijing Laboratory of Electron Microscopy,Institute of Physics,Chinese Academy of Sciences,Beijing,100080,P.R.China)

用高分辨电子显微学及平行电子能量损失谱方法研究了Ni80Fe20Cu基磁性多层膜和自旋阀的显微结构。高分辨像显示,磁性多层膜及自旋阀均具有沿薄膜生长方向的柱晶结构。Ni,Fe,Cu和Mn元素的成分分布图显示,柱晶内仍保持完整的层状结构。沿... 详细信息

用高分辨电子显微学及平行电子能量损失谱方法研究了Ni80Fe20Cu基磁性多层膜和自旋阀的显微结构。高分辨像显示,磁性多层膜及自旋阀均具有沿薄膜生长方向的柱晶结构。Ni,Fe,Cu和Mn元素的成分分布图显示,柱晶内仍保持完整的层状结构。沿薄膜生长方向的自旋阀元素分布曲线分析表明,NiFe层中的Ni元素沿柱晶晶界向相邻Cu层扩散。讨论了这些低维磁电子学材料的显微结构对磁输运性能的影响。

关键词： Fe 磁性多层膜显微结构柱晶薄膜生长晶体生长高分辨电子显微学自旋阀 Cu magneticmultilayers and spin valve

Studies on the Host Biotypes and Its Cause of Cotton Aphidin Nanjing,China

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Agricultural Sciences in China 2002年第11期1卷 1211-1215页

作者： LIU Xiang-dong, ZHAI Bao-ping and zhang Xiao-xi(College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, P. R. China) College of Plant Protection Nanjing Agricultural University Nanjing 210095 F.R. China

The fitness of cotton aphid, Aphis gossypii Glover, on different host plants was studied. The results showed that the cotton aphid population in Nanjing formed host preference bio-types on cucumber and cotton. The aphids from cotton and cucumber could not inter-transplant successfully between the two host plants. The apterous and alate offspring of stem mother from hibiscus could not survive, reproduce and form population normally when they were transplanted to cucumber and water melon, but they could form normally when transplanted to cotton and muskmelon. There was no significant difference between the stylet length of cotton aphids from cucumber and cotton, so the stylet length was not the cause of the host preference. When the aphids originated on hibiscus were transplanted to cotton, water melon and muskmelon, the stylet could reach host phloem to absorb host plant’s nutrients, but it couldn’t when transplanted to cucumber. Cotton aphid can feed on muskmelon without secretion of water-soluble saliv

关键词： Aphis gossypii Host transplantation Host biotypes EPG Stylet length

Channel Adaptive Shortest Path Routing for Ad Hoc Networks

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The Journal of China Universities of Posts and Telecommunications 2003年第3期10卷 1-5页

作者： TIAN Hui, XIE Fang, HU Jian dong, zhang ping (Wireless Technology Innovation Labs, Beijing University of Posts & Telecommunications, Beijing 100876, P. R. China) Wireless Technology Innovation Labs Beijing University of Posts & Telecommunications 北京 100876

Routing in Mobile Ad Hoc Network (MANET) is a challenge owing to the dynamicnature of network topology and the resource constraints. To maximize the channel resourceutilization and minimize the network transfer delay along the path, the shortest path with theminimum hops approach is often adopted. However, the quality of wireless channels among the mobilenodes is time varying owing to fading, shadowing and path loss. Considering adaptive channel codingand modulation scheme, the channel state can be characterized by different link throughputs . Ifrouting selection based on the link throughput is implemented, the minimum transfer delay fromsource to destination and the. maximal throughput may be obtained. In this paper, a Channel AdaptiveShortest Path Routing (CASPR) is presented. Based on the adaptive channel coding and modulation,the CASPR transforms the link throughput into the channel quality factor Q and finds the shortestrouting according to the Q measure. Simulation results show that the average path length in theproposed routing scheme may be slightly higher than that of the conventional shortest path with theminimum hops approach, but it can reduce the average transfer delay and increase the packet deliverrate.

关键词： wireless networks ad hoc networks routing

Structural Modal Parameter Recognition and Related Damage Identification Methods under Environmental Excitations: A Review

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Structural Durability & Health Monitoring 2025年第1期19卷 25-54页

作者： Chao zhang Shang-Xi Lai Hua-ping Wang School of Civil Engineering and Mechanics Lanzhou UniversityLanzhou730000China Key Laboratory of Special Functional Materials and Structural Design Ministry of EducationLanzhou UniversityLanzhou730000China

Modal parameters can accurately characterize the structural dynamic properties and assess the physical state of the ***,it is particularly signiﬁcant to identify the structural modal parameters according to the monitoring data information in the structural health monitoring(SHM)system,so as to provide a scientiﬁc basis for structural damage identiﬁcation and dynamic model modiﬁ*** view of this,this paper reviews methods for identifying structural modal parameters under environmental excitation and brieﬂy describes how to identify structural damages based on the derived modal *** paper primarily introduces data-driven modal parameter recognition methods(e.g.,time-domain,frequency-domain,and time-frequency-domain methods,etc.),brieﬂy describes damage identiﬁcation methods based on the variations of modal parameters(e.g.,natural frequency,modal shapes,and curvature modal shapes,etc.)and modal validation methods(e.g.,Stability Diagram and Modal Assurance Criterion,etc.).The current status of the application of artiﬁcial intelligence(AI)methods in the direction of modal parameter recognition and damage identiﬁcation is further *** on the pre-vious analysis,the main development trends of structural modal parameter recognition and damage identiﬁcation methods are given to provide scientiﬁc references for the optimized design and functional upgrading of SHM systems.

关键词： Structural health monitoring data information modal parameters damage identiﬁcation AI method

HNRNPC as a pan-cancer biomarker and therapeutic target involved in tumor progression and immune regulation

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Oncology research 2025年第1期33卷 83-102页

作者： Yuezhou zhang Zhao zhang Jinxin dong Changan Liu Department of Hepatobiliary Surgery The Second Affiliated Hospital of Chongqing Medical University Chongqing 400016 China. Department of Hepatobiliary Surgery The First Affiliated Hospital of Chongqing Medical University Chongqing 400016 China.

Background:Aberrant expression of RNA-binding proteins (RBPs) has been linked to a variety of diseases, including hematological disorders, cardiovascular diseases, and multiple types of cancer. Heterogeneous nuclear ribonucleoprotein C (HNRNPC), a member belonging to the heterogeneous nuclear ribonucleoprotein (hnRNP) family, plays a pivotal role in nucleic acid metabolism. Previous studies have underscored the significance of HNRNPC in tumorigenesis; however, its specific role in malignant tumor progression remains inadequately characterized.Methods:We leveraged publicly available databases, including The Cancer Genome Atlas (TCGA), to explore the potential involvement of HNRNPC across various cancers. Additionally, we performed experimental validation studies focused on liver cancer.Results:Our analysis revealed that HNRNPC is overexpressed in a wide range of common malignancies, including liver and lung cancers, and is strongly linked to unfavorable outcomes. Furthermore, HNRNPC was observed to be closely linked to tumor immunity. Through immune checkpoint analysis and immune cell infiltration assessment, HNRNPC emerged as a potential target for modulating tumor immunotherapy. Notably, silencing of HNRNPC markedly inhibited the proliferation, metastasis, and infiltration of liver cancer cells.Conclusion:In summary, our findings highlight HNRNPC as a prognostic marker in various cancers, including liver cancer, and suggest its involvement in shaping the tumor immune microenvironment. These insights offer potential avenues for improving clinical outcomes in tumors with elevated HNRNPC expression, particularly through immunotherapeutic strategies.

关键词： Hepatocellular carcinoma Heterogeneous nuclear ribonucleoprotein C (HNRNPC) Immunotherapeutic target Pan-cancer analysis Prognostic biomarker Tumor immunity

Force and impulse multi-sensor based on flexible gate dielectric field effect transistor

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 214-220页

作者： Chao Tan Junling Lü Chunchi zhang dong Liang Lei Yang Zegao Wang College of Materials Science and Engineering Sichuan UniversityChengdu 610065China The 54th Research Institute of China Electronics Technology Group Corporation Shijiazhuang 050081China

Nowadays,force sensors play an important role in industrial production,electronic information,medical health,and many other ***-dimensional material-based filed effect transistor(2D-FET)sensors are competitive with nano-level size,lower power consumption,and accurate ***,few of them has the capability of impulse detection which is a path function,expressing the cumulative effect of the force on the particle over a period of *** we fabricated the flexible polymethyl methacrylate(PMMA)gate dielectric MoS_(2)-FET for force and impulse sensor *** systematically investigated the responses of the sensor to constant force and varying forces,and achieved the conversion factors of the drain current signals(I_(ds))to the detected impulse(I).The applied force was detected and recorded by I_(ds)with a low power consumption of~30 *** sensitivity of the device can reach~8000%and the 4×1 sensor array is able to detect and locate the normal force applied on ***,there was almost no performance loss for the device as left in the air for two months.

关键词： flexible gate dielectric transistor force sensor impulse sensor force sensor array

Numerical Simulation on Temperature and Stress Fields in Beryllium During Cutting Process

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Journal of Shanghai Jiaotong university(Science) 2011年第3期16卷 329-332页

作者：董平张鹏程李瑞文 Key Laboratory for Surface Physics and Chemistry China Academy of Engineering Physics

The temperature and stress fields in beryllium during high speed cutting process were studied by employing a thermo-mechanically coupled finite element method(FEM).The results show that the temperatures in beryllium increase only a little during the cutting *** of the residual stresses for along and normal to the cutting direction are tensile stresses in the surface of beryllium after *** cutting force and thrust force are about 280 and-250kN/m at the steady stage,*** main effects of coolant on the cutting process are to decrease the friction coefficient and heat between the tool and the workpiece,so to reduce the temperature,but almost no effects are made for *** study is helpful to enhance the understanding for stress formation and optimize the process parameters of beryllium.

关键词： beryllium temperature field stress field cutting finite element method(FEM)

Dielectric-ion-conductive ZnNb2O6 layer enabling rapid desolvation and diffusion for dendrite-free Zn metal batteries

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Journal of Energy Chemistry 2025年第1期100卷 693-701页

作者： Haifeng Yang Jian Wang Panpan zhang Xiaomin Cheng Qinghua Guan Jing dong Bixian Chen Lujie Jia Jing zhang Yongzheng zhang Yunjian Liu Hongzhen Lin School of Materials Science and Engineering Jiangsu University i-Lab & CAS Key Laboratory of Nanophotonic Materials and Devices Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences Helmholtz Institute Ulm (HIU) Karlsruhe Institute of Technology (KIT) School of Materials Science and Engineering Xi'an University of Technology State Key Laboratory of Chemical Engineering East China University of Science and Technology

Rechargeable aqueous zinc-metal batteries （AZMBs） are promising candidates for large-scale energy storage systems due to their low cost and high ***,their performance and sustainability are significantly hindered by the sluggish desolvation kinetics at the electrode/electrolyte interface and the corresponding hydrogen evolution reaction where active water molecules tightly participate in the Zn（H2O）62+solvation ***,learnt from self-generated solid electrolyte interphase （SEI） in anodes,the dielectric but ion-conductive zinc niobate nanoparticles artificial layer is constructed on metallic Zn surface （ZNB@Zn）,acting as a rapid desolvation *** zincophilic and dielectric-conductive properties of ZNB layer accelerate interfacial desolvation/diffusion and suppress surface corrosion or dendrite formation,achieving uniform Zn plating/stripping behavior,as confirmed by electronic/optical microscopies and interface spectroscopical measurements together with theoretical ***,the as-prepared ZNB@Zn electrode exhibits excellent cycling stability of over 2000 h and robust reversibility （99.54%） even under high current density and depth of discharge ***,the assembled ZNB@Zn-based full cell displays high capacity-retention rate of 80.21%after 3000 cycles at 5 A g-1and outstanding rate performance up to 10 A *** large-areal pouch cell is stabilized for hundreds of cycles,highlighting the bright prospects of the dielectric but ion-conductive layer in further application of AZMBs.

关键词： Zn metal battery Dielectric artificial layer Rapid ion diffusion Zincophilic diffusion Active water inhibition