检索结果-内蒙古大学图书馆

arXiv 2019年

作者： Kim, Dong-Su Choi, Yong Whan Jeong, Yun-Jin Park, Jongsung Oyunbaatar, Nomin-Erdene Kim, Eung-Sam Choi, Mansoo Lee, Dong-Weon MEMS and Nanotechnology Laboratory School of Mechanical Systems Engineering Chonnam National University Gwangju61186 Korea Republic of Division of Mechanical Convergence Engineering College of MICT Convergence Engineering Silla University Busan46958 Korea Republic of Department of Biological Sciences Chonnam National University Gwangju61186 Korea Republic of Global Frontier Center for Multiscale Energy Systems Department of Mechanical and Aerospace Engineering Seoul National University Seoul08826 Korea Republic of Center for Next Generation Sensor Research and Development Chonnam National University Gwangju61186 Korea Republic of

We propose a novel cantilever device integrated with a polydimethylsiloxane (PDMS)encapsulated crack sensor that directly measures the cardiac contractility. The crack sensor was chemically bonded to a PDMS thin layer to form a sandwiched structure which allows to be operated very stably in culture media. The reliability of the proposed crack sensor has improved dramatically compared to no encapsulation layer. After evaluating the durability of the crack sensor bonded with the PDMS layer, cardiomyocytes were cultured on the nano-patterned cantilever for real-time measurement of cardiac contractile forces. The highly sensitive crack sensor continuously measured the cardiac contractility without changing its gauge factor for up to 26 days (>5 million heartbeats). In addition, changes in contractile force induced by drugs were monitored using the crack sensor-integrated cantilever. Finally, experimental results were compared with those obtained via conventional electrophysiological methods to verify the feasibility of building a contraction-based drug-toxicity testing system. Copyright © 2019, The Authors. All rights reserved.

关键词： Nanocantilevers

来源：评论

学校读者我要写书评

暂无评论

Analysis and design of the class-φ2 inverter 44

Analysis and design of the class-φ2 inverter

引用

44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018

作者： Kitazawa, Keisuke Wei, Xiuqin Katsuki, Akihiko Hirokawa, Masahiko Department of Electrical and Electronic Engineering Chiba Institute of Technology Chiba275-0016 Japan TDK Collaborative Research Course Next Generation Switching Power Circuit Course Graduate School of Engineering Nagasaki University Nagasaki852-8521 Japan Advanced Products Development Center Technology and Intellectual Property HQ TDK Corporation Chiba272-8558 Japan

ISBN: (纸本)9781509066841

This paper presents a novel design procedure based on analysis for the class-Φ2 inverter at any duty ratio, taking into account the fundamental-frequency and harmonic components of the input current, output current, and injection current. By using the proposed design procedure, the design values for satisfying the class-E zero-voltage switching/zero-derivative switching (ZVS/ZDS) conditions of the class-Φ2 inverter can be achieved without applying any tuning process. A design example is given along with its LTspice simulation and laboratory experiment at 20.5 W output power and 6.78 MHz operating frequency. The analytical predictions agreed with experimental and LTspice-simulation results quantitatively, which showed the validity of analytical expressions given in this paper. © 2018 IEEE.

关键词： Zero voltage switching

来源：评论

学校读者我要写书评

暂无评论

LimeSoDa: A dataset collection for benchmarking of machine learning regressors in digital soil mapping

引用

Geoderma 2025年 459卷

作者： Schmidinger, Jonas Vogel, Sebastian Barkov, Viacheslav Pham, Anh-Duy Gebbers, Robin Tavakoli, Hamed Correa, Jose Tavares, Tiago R. Filippi, Patrick Jones, Edward J. Lukas, Vojtech Boenecke, Eric Ruehlmann, Joerg Schroeter, Ingmar Kramer, Eckart Paetzold, Stefan Kodaira, Masakazu Wadoux, Alexandre M.J.-C. Bragazza, Luca Metzger, Konrad Huang, Jingyi Valente, Domingos S.M. Safanelli, Jose L. Bottega, Eduardo L. Dalmolin, Ricardo S.D. Farkas, Csilla Steiger, Alexander Horst, Taciara Z. Ramirez-Lopez, Leonardo Scholten, Thomas Stumpf, Felix Rosso, Pablo Costa, Marcelo M. Zandonadi, Rodrigo S. Wetterlind, Johanna Atzmueller, Martin Osnabrück University Joint Lab Artificial Intelligence and Data Science Osnabrück Germany Department of Agromechatronics Potsdam Germany Piracicaba Brazil The University of Sydney Sydney Institute of Agriculture Sydney Australia Mendel University in Brno Department of Agrosystems and Bioclimatology Brno Czech Republic Leibniz Institute of Vegetable and Ornamental Crops Next Generation Horticultural Systems Grossbeeren Germany Eberswalde University for Sustainable Development Landscape Management and Nature Conservation Eberswalde Germany —Soil Science and Soil Ecology Bonn Germany Tokyo University of Agriculture and Technology Institute of Agriculture Tokyo Japan LISAH Univ. Montpellier AgroParisTech INRAE IRD L'Institut Agro Montpellier France Agroscope Field-Crop Systems and Plant Nutrition Nyon Switzerland University of Wisconsin-Madison Department of Soil Science Madison United States Federal University of Viçosa Department of Agricultural Engineering Viçosa Brazil Woodwell Climate Research Center Falmouth United States Academic Coordination Santa Maria Brazil Soil Department Santa Maria Brazil Division of Environment and Natural Resources Aas Norway University of Rostock Chair of Geodesy and Geoinformatics Rostock Germany Federal Technological University of Paraná Dois Vizinhos Brazil BÜCHI Labortechnik AG Data Science Department Flawil Switzerland Imperial College London Imperial College Business School London United Kingdom University of Tübingen Department of Geosciences Tübingen Germany University of Tübingen DFG Cluster of Excellence ‘Machine Learning for Science’ Germany Bern University of Applied Sciences Competence Center for Soils Zollikofen Switzerland Simulation and Data Science Müncheberg Germany Federal University of Jataí Institute of Agricultural Sciences Jatai Brazil Federal University of Mato Grosso Instute of Agricultural and Environmental Scinces Sinop Brazil Department of Soil and Environment Skara S

Digital soil mapping (DSM) relies on a broad pool of statistical methods, yet determining the optimal method for a given context remains challenging and contentious. Benchmarking studies on multiple datasets are needed to reveal strengths and limitations of commonly used methods. Existing DSM studies usually rely on a single dataset with restricted access, leading to incomplete and potentially misleading conclusions. To address these issues, we introduce an open-access dataset collection called Precision Liming Soil Datasets (LimeSoDa). LimeSoDa consists of 31 field- and farm-scale datasets from various countries. Each dataset has three target soil properties: (1) soil organic matter or soil organic carbon, (2) clay content and (3) pH, alongside a set of features. Features are dataset-specific and were obtained by optical spectroscopy, proximal- and remote soil sensing. All datasets were aligned to a tabular format and are ready-to-use for modeling. We demonstrated the use of LimeSoDa for benchmarking by comparing the predictive performance of four learning algorithms across all datasets. This comparison included multiple linear regression (MLR), support vector regression (SVR), categorical boosting (CatBoost) and random forest (RF). The results showed that although no single algorithm was universally superior, certain algorithms performed better in specific contexts. MLR and SVR performed better on high-dimensional spectral datasets, likely due to better compatibility with principal components. In contrast, CatBoost and RF exhibited considerably better performances when applied to datasets with a moderate number ( © 2025 The Author(s)

关键词： Random forests

来源：评论

学校读者我要写书评

暂无评论

Near surface camera informed agricultural land monitoring for climate smart agriculture

Climate Smart Agriculture

引用

Climate Smart Agriculture 2024年第1期1卷

作者： Le Yu Zhenrong Du Xiyu Li Qiang Zhao Hui Wu Duoji weise Xinqun Yuan Yuanzheng Yang Wenhua Cai Weimin Song Pei Wang Zhicong Zhao Ying Long Yongguang Zhang Jinbang Peng Xiaoping Xin Fei Xu Miaogen Shen Hui Wang Yuanmei Jiao Yong Luo Department of Earth System Science Ministry of Education Key Laboratory for Earth System Modeling Institute for Global Change Studies Tsinghua University Beijing China Ministry of Education Ecological Field Station for East Asian Migratory Birds Beijing China Tsinghua University (Department of Earth System Science)- Xi'an Institute of Surveying and Mapping Joint Research Center for Next-Generation Smart Mapping Beijing China School of Information and Communication Engineering Dalian University of Technology Dalian China Geothermal Geological Brigade Tibet Autonomous Region Geological and Mineral Exploration and Development Bureau Lhasa China International Department Beijing No. 35 High School Beijing China Key Laboratory of Environment Change and Resources Use in Beibu Gulf Ministry of Education Nanning Normal University Nanning China Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation Nanning Normal University Nanning China Key Laboratory of Coastal Environmental Processes and Ecological Restoration Yantai Institute of Coastal Zone Research Chinese Academy of Sciences Yantai China Yellow River Delta Field Observation and Research Station of Coastal Wetland Ecosystem Chinese Academy of Sciences Dongying China Department of Landscape Architecture School of Architecture Tsinghua University Beijing China Institute for National Parks Tsinghua University Beijing China School of Architecture and Hang Lung Center for Real Estate Key Laboratory of Eco Planning & Green Building Ministry of Education Tsinghua University Beijing China International Institute for Earth System Sciences Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing University Nanjing China Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources School of Geography and Ocean Science Nanjing Univer

Continuous and accurate monitoring of agricultural landscapes is crucial for understanding crop phenology and responding to climatic and anthropogenic changes. However, the widely used optical satellite remote sensing is limited by revisit cycles and weather conditions, leading to gaps in agricultural monitoring. To address these limitations, we designed and deployed a Near Surface Camera (NSCam) Network across China, and explored its application in agricultural land monitoring and achieving climate-smart agriculture (CSA). By analyzing the image data captured by the NSCam Network, we can accurately assess long-term or abrupt agricultural land changes. According to the preliminary monitoring results, integrating NSCam data with remote sensing imagery greatly enhances the temporal details and accuracy of agricultural monitoring, aiding agricultural managers in making informed decisions. The impacts of abnormal weather conditions and human activities on agricultural land, which are not captured by remote sensing imagery, can be complemented by incorporating our NSCam Network. The successful implementation of this method underscores its potential for broader application in CSA, promoting resilient and sustainable agricultural practices.

关键词： Near surface camera (NSCam) Climate-smart agriculture (CSA) Agricultural monitoring Data fusion Sentinel-2

来源：评论

学校读者我要写书评

暂无评论

Author Correction: Nrf2 contributes to the weight gain of mice during space travel

Communications biology

引用

Communications biology 2020年第1期3卷 566页

作者： Takafumi Suzuki Akira Uruno Akane Yumoto Keiko Taguchi Mikiko Suzuki Nobuhiko Harada Rie Ryoke Eriko Naganuma Nanae Osanai Aya Goto Hiromi Suda Ryan Browne Akihito Otsuki Fumiki Katsuoka Michael Zorzi Takahiro Yamazaki Daisuke Saigusa Seizo Koshiba Takashi Nakamura Satoshi Fukumoto Hironobu Ikehata Keizo Nishikawa Norio Suzuki Ikuo Hirano Ritsuko Shimizu Tetsuya Oishi Hozumi Motohashi Hirona Tsubouchi Risa Okada Takashi Kudo Michihiko Shimomura Thomas W Kensler Hiroyasu Mizuno Masaki Shirakawa Satoru Takahashi Dai Shiba Masayuki Yamamoto Department of Medical Biochemistry Tohoku University Graduate School of Medicine Sendai Japan. Department of Integrative Genomics Tohoku Medical Megabank Organization Tohoku University Sendai Japan. JEM Utilization Center Human Spaceflight Technology Directorate JAXA Tsukuba Japan. The Advanced Research Center for Innovations in Next-Generation Medicine (INGEM) Tohoku University Sendai Japan. Center for Radioisotope Sciences Tohoku University Graduate School of Medicine Sendai Japan. Institute for Animal Experimentation Tohoku University Graduate School of Medicine Sendai Japan. Department of Functional Brain Imaging Institute of Development Aging and Cancer Tohoku University Sendai Japan. Department of Molecular Hematology Tohoku University Graduate School of Medicine Sendai Japan. Department of Molecular Biotechnology and Health Sciences University of Turin 10125 Torino Italy. Division of Molecular Pharmacology & Cell Biophysics Tohoku University Graduate School of Dentistry Sendai Japan. Division of Pediatric Dentistry Tohoku University Graduate School of Dentistry Sendai Japan. Immunology Frontier Research Center Osaka University Suita Japan. Division of Oxygen Biology Tohoku University Graduate School of Medicine Sendai Japan. Department of Gene Expression Regulation Institute of Development Aging and Cancer Tohoku University Sendai Japan. Laboratory Animal Resource Center in Transborder Medical Research Center and Department of Anatomy and Embryology Faculty of Medicine University of Tsukuba Tsukuba Japan. Translational Research Program Fred Hutchinson Cancer Research Center Seattle WA USA. JEM Utilization Center Human Spaceflight Technology Directorate JAXA Tsukuba Japan. shiba.dai@jaxa.jp. Department of Medical Biochemistry Tohoku University Graduate School of Medicine Sendai Japan. masiyamamoto@med.tohoku.ac.jp. Department of Integrative Genomics Tohoku Medical Megabank Organization Tohoku University Sendai Japan. masiyamamoto@med.toho

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

关键词：

来源：评论

学校读者我要写书评

暂无评论

2-8 under seawater radio communications

引用

Journal of the National Institute of Information and Communications Technology 2017年第2期64卷 53-56页

作者： Yoshida, Hiroshi Suga, Ryotaro Matsuda, Takashi Takizawa, Kenichi Kojima, Fumihide Department of Enginnering for Geo-Marine Sciences Marine Technology and Engineering Center Japan Agency for Marine-Earth Science and Technology Marine technology Japan Project Team for Development of New-generation Reseach Protocol for Submarine Resources Japan Agency for Marine-Earth Science and Technology Antenna technology Electromagnetic field analysis Japan Wireless Systems Laboratory Wireless Networks Research Center Wireless sensor network Wireless power transmission Japan Wireless Systems Laboratory Wireless Networks Research Center Mobile communication Under water communication Japan Wireless Systems Laboratory Wireless Networks Research Center Wireless communcation Japan

Currently, wireless communications under seawater has been one of attractive research fields of radio frequency (RF) communications. NICT and JAMSTEC have started a joint research on this research field, and have developed a under-seawater channel sounder for conducting measurement on radio propagation characteristics available in the depth of 500 meters. This report shows an overview of the channel sounder and a couple of measurement results. © 2017 National Institute of Information and Communications Technology. All rights reserved.

关键词： Seawater

来源：评论

学校读者我要写书评

暂无评论

Gyroscopes based on surface acoustic waves

引用

Micro and Nano Systems Letters 2015年第1期3卷 1-10页

作者： Oh, Haekwan Lee, Ki Jung Lee, Keekeun Yang, Sang Sik Division of Electrical and computer engineering Ajou University Suwon 443-749 South Korea Next Generation Convergence Sensor Research Center KETI Seongnam 463-816 South Korea

This review gives an overview of the development of surface acoustic wave (SAW) based gyroscopes. Different types of SAW based gyroscope are first presented, which are categorized into standing-wave based or progressive-wave based gyroscopes according to their respective mechanisms. In addition, multi-axis detectable SAW based gyroscopes are also introduced in this review. Different principles, structures, production methods, and control technologies are analyzed. © 2015, Oh et al.;licensee Springer.

关键词： Gyroscope Interference effect Multi-axis detectable gyroscope Progressive wave Standing wave Surface acoustic wave (SAW)

来源：评论

学校读者我要写书评

暂无评论

Percutaneous endoscopic gastrostomy under steadypressure automatically controlled endoscopy:First clinicalseries

引用

World Journal of Gastrointestinal Endoscopy 2016年第3期8卷 186-191页

作者： Hiroyuki Imaeda Kiyokazu Nakajima Naoki Hosoe Masanori Nakahara Shinichiro Zushi Motohiko Kato Kazuhiro Kashiwagi Yasushi Matsumoto Kayoko Kimura Rieko Nakamura Norihito Wada Masahiko Tsujii Naohisa Yahagi Toshifumi Hibi Takanori Kanai Tetsuo Takehara Haruhiko Ogata Department of General Internal Medicine Saitama Medical UniversitySaitama 350-0495Japan Division of Next Generation Endoscopic Intervention Osaka UniversityOsaka 565-0871Japan Center for Diagnostic and Therapeutic Endoscopy School of MedicineKeio UniversityTokyo 160-8582Japan Department of Gastroenterology Ikeda City HospitalOsaka 563-8510Japan Department of Gastroenterology and Hepatology Graduate School of MedicineOsaka UniversityOsaka 565-0871Japan Department of Surgery School of MedicineKeio UniversityTokyo 160-8582Japan Division of Research and Development for Minimally Invasive Treatment Cancer CenterSchool of MedicineKeio UniversityTokyo 160-8582Japan Division of Gastroenterology and Hepatology Department of Internal MedicineSchool of MedicineKeio UniversityTokyo 160-8582Japan

AIM: To elucidate the safety of percutaneous endoscopic gastrostomy(PEG) under steady pressure automatically controlled endoscopy(SPACE) using carbon dioxide(CO_2).METHODS: Nine patients underwent PEG with a modified introducer method under conscious sedation. A T-tube was attached to the channel of an endoscope connected to an automatic surgical insufflator. The stomach was inflated under the SPACE system. The intragastric pressure was kept between 4-8 mmH g with a flow of CO_2 at 35 L/min. Median procedure time, intragastric pressure, median systolic blood pressure, partial pressure of CO_2, abdominal girth before and immediately after PEG, and free gas and small intestinal gas on abdominal X-ray before and after PEG were recorded. RESULTS: PEG was completed under stable pneumostomach in all patients, with a median procedural time of 22 min. Median intragastric pressure was 6.9 mmH g and median arterial CO_2 pressure before and after PEG was 42.1 and 45.5 Torr(NS). The median abdominal girth before and after PEG was 68.1 and 69.6 cm(NS). A mild free gas image after PEG was observed in two patients, and faint abdominal gas in the downstream bowel was documented in two ***: SPACE might enable standardized pneumostomach and modified introducer procedure of PEG.

关键词： Percutaneous endoscopic gastrostomy Steadypressure automatically controlled endoscopy Carbondioxide

来源：评论

学校读者我要写书评

暂无评论

Interposer technology development which is the most appropriate for 2.5D packaging

引用

Journal of Japan Institute of Electronics Packaging 2015年第3期18卷 150-155页

作者： Fukuoka, Yoshitaka Kuramochi, Satoru Suzuki, Kousuke WEISTI Worldwide Electronic Integrated Substrte Technology Inc. 293-64 Otsuka Hachioji-shi Tokyo Japan Next Generation MEMS Laboratory Research and Development Center DNP Dai Nippon Printing Co. Ltd. 250-1 Wakashiba Kashiwa-shi Chiba Japan

来源：评论

学校读者我要写书评

暂无评论

Numerical modeling of boiling flow in a cryogenic propulsion system 51st

Numerical modeling of boiling flow in a cryogenic propulsion...

引用

51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015

作者： Umemura, Yutaka Himeno, Takehiro Kinefuchi, Kiyoshi Tani, Naoki Negishi, Hideyo Kobayashi, Hiroaki Ohira, Katsuhide Fukasawa, Osamu Aerospace Research and Development Directorate Research Unit III Japan Aerospace Exploration Agency 2-1-1 Sengen TsukubaIbaraki305-8505 Japan Department of Aeronautics and Astronautics The University of Tokyo 7-3-1 Hongo Bunkyo-kuTokyo113-8656 Japan Next Generation Aeronautical Innovation Hub Center Japan Aerospace Exploration Agency 7-44-1 Jindaiji Higashi-machi Chofu-shi182-8522 Japan Institute of Fluid Science Tohoku University 2-1-1 Katahira Aoba-ku Sendai980-8577 Japan Ryoyu System Co. 3-7-3 Uchiyama Chikusa-ku Nagoya464-0075 Japan

ISBN: (纸本)9781624103216

The payload capacity of launch vehicles must be increased in order to allow the exploration and development of space to be extended from low-Earth orbit into the solar system. A propellant system using a cryogenic fluid such as liquid oxygen or liquid hydrogen must reduce the amount of unusable propellant due to evaporation and boiling. However, in the space exploration and development where safety and reliability of missions are critical, predictions of the boiling heat transfer of the present technology are not sufficiently reliable for thermal management design due to a lack of knowledge and relevant research. Therefore, the objective of this research is to understand and accurately predict boiling heat transfer by developing numerical simulation tool for two-phase flows that consider phase change. In this paper, some recent research activities toward the development of chill-down process simulation technology are presented. © 2015, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Liquefied gases

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：