检索结果-内蒙古大学图书馆

Identification of international trade patterns of agricultural products:the evolution of communities and their core countries

引用

地球空间信息科学学报（英文版） 2024年第1期27卷 49-63页

作者： Jiaxin Dong Siwei Li Lina Huang Jing He Wenping Jiang Fu Ren Yujing Wang Jiang Sun Hao Zhang School of Remote Sensing and Information Engineering Wuhan UniversityWuhanChina School of Remote Sensing and Information Engineering Wuhan UniversityWuhanChina State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanChina School of Resource and Environmental Sciences Wuhan UniversityWuhanChina School of Resource and Environmental Sciences Wuhan UniversityWuhanChina Key Laboratory of Geographic Information Systems Ministry of EducationWuhan UniversityWuhanChina Department of Aerospace System and Application The 54 Research Institute of China Electronics Technology Group CorporationShijiazhuangChina Institute of Natural Resources Survey Hydrogeology and Engineering Geology Institute of Hubei Geological BureauJingzhouChina Management Department 32034 TroopsChengduChina

As a special branch of global trade,the trade of agricultural products has an important impact on food security and the *** this paper,we studied international trade network of agricultural products from 2000 to 2016 as a whole and in *** explored the overall characteristics of the network,analyzed the evolution of communities and identified core countries of the *** results show that the structure of the trade network became increasingly complex and the trade relations became closer over *** were four major communities in the network,whose primary core countries were Germany,the United States,Brazil,and *** 2007,the community represented by China has disappeared,and the community pattern of the network has been in a three-pillar state and basically *** discuss the actual roles of certain trading countries,the formation of communities and the impact of economic events on agricultural products *** paper reveals the underlying patterns of the agricultural products trade and provides a way to track its evolution over time.

关键词： Complex network communities core countries international trade of agricultural products spatial pattern

来源：评论

学校读者我要写书评

暂无评论

Fault Detection Method Using Signal Processing Approaches to Design a Power system Network Control Method 3

Fault Detection Method Using Signal Processing Approaches to...

引用

3rd International Conference for Innovation in technology, INOCON 2024

作者： Mahia, Ram Niwash Prakash Mahela, Om National Institute of Technology Hamirpur Department of Electrical Engineering Himachal Pradesh India Rajasthan Rajya Vidyut Prasaran Nigam Ltd. Power System Planning Division Jaipur India

ISBN: (纸本)9798350381931

This paper formulated a Stockwell-Hilbert composite fault detection method (SHCFDM) using current features extracted by the use of Stockwell transform (ST) and Hilbert transform (HT). A Stockwell-Hilbert composite fault index (SHCFI) is formulated which is effective to detect the faults incident on the power system network which includes fault with phase and ground (FWPG), fault with two phases (FW2P), fault with two phases and ground (FW2PG), fault with three phases (FW3P) and fault with three phases and ground (FW3PG). Fault sorting is done using number of faulty phases and a Stockwell-Hilbert ground fault index (SHGFI) which is computed by processing the zero sequence current (ZSC) using the SHCFDM. SHGFI identifies the ground with a fault. Proposed SHCFDM performs better compared to Discrete Wavelet transform (DWT) derived fault detection method. Study is performed on a two terminal power system transmission line (PSTL) connected on two power system bus (PSB) using MATLAB. © 2024 IEEE.

关键词： Fault detection

来源：评论

学校读者我要写书评

暂无评论

Development of Time-Multiplexed Magnetic-Induction Based Ranging systems

Development of Time-Multiplexed Magnetic-Induction Based Ran...

引用

2023 IEEE Applied Sensing Conference, APSCON 2023

作者： Chavda, Mudra Chandola, Ashwani Malik, Shahid O'Sullivan, Catherine Holmes, Andrew S Indian Institute of Technology Delhi Centre for Sensors Instrumentation and Cyber Physical System Engineering New Delhi India Imperial College London Department of Civil and Environmental Engineering London United Kingdom Imperial College London Department of Electrical and Electronic Engineering London United Kingdom

ISBN: (纸本)9781665461634

Ranging and locating systems are necessary currently. Localization of robots operating underground, miners and machinery in mining environments, and interior environments are few applications that demand a reliable and accurate positioning system. Magnetic-induction (MI) based ranging and positioning system is widely used in such applications because the magnetic permeability of different mediums are almost same. However, the MI based system are complex since multiple transmitters are needed for accurate ranging and positioning. In this paper, we present a time division multiplexing MI based ranging system. A single signal source is needed to excite the magnetic coil sequentially. A prototype is developed and tested for a range of 1 meter with an error less than ± 2 cm. © 2023 IEEE.

关键词： Ultra-wideband (UWB)

来源：评论

学校读者我要写书评

暂无评论

Physiological Glucose Sensing in in-vitro 3D Spheroids using SERS Based Nanosensors 26

Physiological Glucose Sensing in in-vitro 3D Spheroids using...

引用

26th International Conference on Miniaturized systems for Chemistry and Life Sciences, MicroTAS 2022

作者： Dey, Koyel Goudar, Venkanagouda S. Tseng, Fan-Gang Santra, Tuhin Subhra Engineering and System Science National Tsing Hua University Hsinchu Taiwan Department of Engineering Design Indian Institute of Technology Madras India

ISBN: (纸本)9781733419048

During growth, tumor spheroids develop gradients of glucose. In this work, we unveiled real time glucose gradient in tumor spheroid using Confocal Raman Spectroscopy. For sensor preparation, 50 nm silver nanoparticle is conjugated with Raman based dye, mercapto-phenylboronic acid(MPBA). The sensor approach a detection limit of 1 mM and dynamic range from 1-100 mM of glucose. MPBA -glucose bonding being reversible, helps for continuous measurement inside 3D microenvironment. Sensors are mixed with co-cultured cells(colon cancer and fibroblast) and seeded in 3D culture chip for spheroid formation. Raman measurement showed an increased glucose concentration from center to surface of spheroid. © 2022 MicroTAS 2022 - 26th International Conference on Miniaturized systems for Chemistry and Life Sciences. All rights reserved.

关键词： Glucose

来源：评论

学校读者我要写书评

暂无评论

Securing IoT-Based Home Automation systems Through Blockchain technology: Implementation

Securing IoT-Based Home Automation Systems Through Blockchai...

引用

2023 International Conference on system, Computation, Automation and Networking, ICSCAN 2023

作者： Palanivel, N. Madhan, K. Kumar, C. Santhosh Sarathkumar, R. Ragupathi, T. Deivanai, S. Manakula Vinayagar Institute of Technology Department of CSE Puducherry India Mailam Engineering College Department of CSE Tamil Nadu Mailam India Er.Perumal Manimekalai College of Engineering Depte of Cse Hosur India Sri Krishna College of Engineering and Technology Department of Ece Coimbatore India Srm Institute of Science and Technology Department of Data Science and Business System Tamilnadu Kattankulathur India

ISBN: (纸本)9798350315127

Cybersecurity is the large subject matter that connects everything, processes, units and technologies. Network safety is a set of policies and settings. They are the integrity, accessibility and availability of facts and networks. Confidentiality of Software and Hardware Use. Today's community threats are continuously evolving and the surroundings is an increasing number of complex. Similarly, the clever domestic has emerge as a low-security threat. That's why it is so vital to remain secure online. Due to the vulnerability of the clever domestic network, there are purposes in many areas, such as users, locations, data, etc. Some clever units may additionally be lacking from your clever home. The machine has been hardened so that passwords can be scrambled. Unencrypted passwords can be searched on the machine or in the software. The safety of the clever domestic community is pretty high. Prioritize linked gadgets to forestall hackers from gaining access to them. Access to touchy or private data. Failure to do so should put your complete clever domestic community at risk. This learn about builds a mannequin to analyze specific protection problems in clever domestic conversation networks. This lookup wants to use qualitative methods, such as anecdotes. A lookup evaluation was once fundamental to raise out this study. and Other applicable records on the secondary facts series techniques used. Several research have been carried out on the protection threats associated to clever domestic networks and the use of applied sciences derived from block chain technology. Reduce protection troubles and defend your intelligence. Secure your domestic network. © 2023 IEEE.

关键词： Blockchain

来源：评论

学校读者我要写书评

暂无评论

Porous bio-high entropy alloy scaffolds fabricated by direct ink writing

引用

Journal of Materials Science & technology 2023年第26期157卷 21-29页

作者： Guangbin Zhao Xiaoxi Shao Qingxian Zhang Yanlong Wu Yaning Wang Xu Chen Hang Tian Yaxiong Liu Yanpu Liu Bingheng Lu State Key Laboratory for Manufacturing System Engineering School of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710054China State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases Department of Oral and Maxillofacial SurgerySchool of StomatologyThe Fourth Military Medical UniversityXi’an 710032China School of Mechatronic Engineering and Automation Foshan UniversityFoshan 528000China Ji Hua Laboratory Foshan 528200China College of Mechanical Engineering Xi’an University of Science and TechnologyXi’an 710054China

Porous tantalum-titanium-niobium-zirconium(Ta-Ti-Nb-Zr)bio-high entropy alloy(bioHEA)scaffolds are fabricated using direct ink writing 3D printing technology in this study.A composite ink is prepared using four metal powders as raw materials:Ta,Ti,Nb and *** extrusion is used to build 3D scaf-folds with interconnected porous structures at room temperature,which are then sintered in a vacuum *** interdiffusion of metal elements yields porous bioHEA scaffolds with a body-centered cubic(BCC)*** fabricated scaffolds have uniform compositions with a significant alloying ef-fect and good *** scaffolds have a compressive strength of 70.08-149.95 MPa and an elastic modulus of 0.18-0.64 GPa,indicating that the mechanical properties can be controlled over a wide *** scaffolds have a compressive strength close to that of human cortical bone and thus meet the requirements for porous structure characteristics and biological and mechanical properties of orthopedic implants.

关键词： Direct ink writing Bio-high entropy alloy Porous scaffolds Sintering Biocompatibility Orthopedic applications

来源：评论

学校读者我要写书评

暂无评论

Tribotronic components:A revolution transforming machine elements into cyber-physical systems

引用

Friction 2025年第1期13卷 51-66页

作者： Ian Sherrington Sergei Glavatskih Jost Institute for Tribotechnology University of Central LancashirePreston PR12HEUK System and Component Design KTH Royal Institute of TechnologyStockholm SE-10044Sweden Department of Electromechanical Systems and Metal EngineeringGhent UniversityGhent B-9052Belgium School of Chemistry University of New South WalesSydney NSW 2052Australia

This paper explores the development of a subject called“tribotronics”,the science of actively controlled tribological elements,and considers the potential of tribotronics as part of a revolutionary machine element design for the *** presents a“state-of-the-art”assessment of some devices that can be considered“tribotronic”and are currently in common use,as well as a review of examples of recent progress in research in *** also presents a“perspective”on the future challenges and likely developments in the subject,including the integration of tribotronics with developments in other fields of digital technology,such as Industry 4.0,the“Internet of Things(IoT)”,and machine learning(ML),potentially leading to“cyber tribotronic systems”.In conclusion,tribotronics will contribute significantly to transforming the design of the components and machines of the present day into cyber-physical systems in the future.

关键词： tribotechnology tribotronics active tribology

来源：评论

学校读者我要写书评

暂无评论

Experimental Investigation of Performance Characteristics of PZT-5A with Application to Fault Diagnosis

引用

Structural Durability & Health Monitoring 2022年第4期16卷 307-321页

作者： Saqlain Abbas Zulkarnain Abbas Yanping Zhu Waqas Tariq Toor Xiaotong Tu Department of Mechanical Engineering University of Engineering and Technology LahoreNarowal CampusNarowal51600Pakistan Institute of Vibration Shock and NoiseState Key Laboratory of Mechanical System and VibrationShanghai Jiao Tong UniversityShanghai200240China Department of Mechanical Engineering National Fertilizer Cooperation(NFC)Institute of Engineering and TechnologyMultan61000Pakistan Institute of Refrigeration and Cryogenics Shanghai Jiao Tong UniversityShanghai200240China Department of Electrical Engineering University of Engineering and Technology LahoreNarowal CampusNarowal51600Pakistan The School of Informatics Xiamen UniversityXiamen361005China

In the previous couple of decades,techniques to reap energy and empower low voltage electronic devices have received outstanding *** of the methods based on the piezoelectric effect to harvest the energy from ambient vibrations have been ***’s an absence of experiment-based investigation which incorporates the microstructure analysis and crystal morphology of those energy harvest home ***,the impact of variable mechanical and thermal load conditions has seldom been studied within the previous literature to utilize the effectiveness of those materials in several practical applications like structural health monitoring(SHM),*** the proposed research work,scanning electron microscope(SEM)and energy dispersive x-ray(EDX)analysis are performed to examine the inside crystal morphology of PZT-5A and ensure the quality of the piezoelectric ***,the performance of piezoelectric vibration-based energy harvester has been investigated in the second phase of current research work under the variable mechanical and thermal load conditions through a regular series of ***’s been found that the output voltage of piezoelectric sensors will increase by increasing the applied load,whereas a decreasing trend in output voltage is noticed by increasing the applied temperature,resistance and *** the third part,a measuring setup is developed in the laboratory to further investigate the effectiveness of PZT-5A in practical applications such as electromechanical impedance(EMI)based structural health monitoring under the controlled heating ***,this analysis not only evaluates the performance of PZT sensors under the variable operating conditions but also encourages developing a temperature compensation approach in EMI-based SHM.

关键词： Piezoelectric energy harvester crystal morphology scanning electron microscope structural health monitoring electromechanical impedance

来源：评论

学校读者我要写书评

暂无评论

Enhancing Recommendation systems: Data Augmentation to Address Incomplete Implicit Feedback

Enhancing Recommendation Systems: Data Augmentation to Addre...

引用

SICE Annual Conference

作者： Yucheng Shang Yusuke Goto Department of System Engineering and Science Shibaura Institute of Technology Tokyo Japan

ISBN: (数字)9784907764838

ISBN: (纸本)9798331544461

Personalized news recommendations can alleviate the information overload problem. News recommendation models harness the interactive information between users and news to personalize recommendations. Most existing approaches to news recommendation use advanced natural language processing techniques to extract semantic information from historical news. However, real-world datasets frequently suffer from considerable noise, which limits the effective modeling of user preferences and item representation. We propose an innovative data augmentation technique that can identify potential data omissions, thereby enhancing the overall integrity of the dataset. In addition, the proposed method can be applied to various neural network-based recommendation frameworks. Experimental results obtained on the MIND-small dataset reveal that integrating the proposed method with a standard recommendation model yields a notable performance enhancement, as evidenced by a 6.8% increase in the hit ratio and a 7.7% improvement in the normalized discounted cumulative gain. These results highlight a substantial improvement in the accuracy and relevance of the news recommendations generated by the model.

关键词： Accuracy Semantics Noise Data augmentation Transformers Natural language processing Iron Data mining Standards Recommender systems

来源：评论

学校读者我要写书评

暂无评论

Ionic liquid multistate resistive switching characteristics in two terminal soft and flexible discrete channels for neuromorphic computing

引用

Microsystems & Nanoengineering 2022年第3期8卷 153-161页

作者： Muhammad Umair Khan Jungmin Kim Mahesh Y.Chougale Chaudhry Muhammad Furqan Qazi Muhammad Saqib Rayyan Ali Shaukat Nobuhiko P.Kobayashi Baker Mohammad Jinho Bae Hoi-Sing Kwok Department of Ocean System Engineering Jeju National University102 JejudaehakroJeju 63243Republic of Korea Department of Electrical Engineering and Computer Science Khalifa UniversityAbu Dhabi 127788UAE System on Chip Center Khalifa UniversityAbu Dhabi 127788UAE Department of Electronics and Computer Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina State Key Laboratory on Advanced Displays and Optoelectronics Technologies The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Baskin School of Engineering Univerity of California Santa Cruz1156 High StreetSanta CruzCA 95064USA

By exploiting ion transport phenomena in a soft and flexible discrete channel,liquid material conductance can be controlled by using an electrical input signal,which results in analog neuromorphic *** paper proposes an ionic liquid(IL)multistate resistive switching device capable of mimicking synapse analog behavior by using IL BMIM FeCL_(4) and H_(2)O into the two ends of a discrete polydimethylsiloxane(PDMs)*** spike rate-dependent plasticity(SRDP)and spike-timing-dependent plasticity(STDP)behavior are highly stable by modulating the input ***,the discrete channel device presents highly durable performance under mechanical bending and *** the obtained parameters from the proposed ionic liquid-based synaptic device,convolutional neural network simulation runs to an image recognition task,reaching an accuracy of 84%.The bending test of a device opens a new gateway for the future of soft and flexible brain-inspired neuromorphic computing systems for various shaped artificial intelligence applications.

关键词： computing gateway state

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：