检索结果-南通市图书馆

Advances in Manufacturing 2024年第2期12卷 227-251页

作者： Si-Xiao Gao Hui Liu jun ota Key Laboratory of Traffic Safety on Track of Ministry of Education Institute of Artificial Intelligence and Robotics(IAIR)School of Traffic and Transportation EngineeringCentral South UniversityChangsha410075People’s Republic of China Research into Artifacts Center for Engineering School of EngineeringThe University of TokyoTokyoJapan

Currently,simultaneous buffer and service rate allocation is a topic of interest in the optimization of manufacturing *** allocation problems have been solved previously to satisfy economic requirements;however,owing to the progress of green manufacturing,energy conservation and environmental protection have become increasingly ***,an energy-efficient approach is developed to maximize the throughput and minimize the energy consumption of manufacturing systems,subject to the total buffer capacity,total service rate,and predefined energy *** energy-efficient approach integrates the simulated annealing-non-dominated sorting genetic algorithm-II with the honey badger algorithm-histogram-based gradient boosting regression *** former algorithm searches for Pareto-optimal solutions of sufficient *** latter algorithm builds prediction models to rapidly calculate the throughput,energy consumption,and energy *** examples show that the proposed hybrid approach can achieve a better solution quality compared with previously reported ***,the prediction models can rapidly evaluate manufacturing systems with sufficient *** study benefits the multi-objective optimization of green manufacturing systems.

关键词： Energy-efficient allocation Multi-objective optimization Energy efficiency Energy consumption Machine learning

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Snowpeak总部休闲水疗中心

城市环境设计 2024年第1期147卷 92-97页

作者：柴田淳大田敏郎 Rue Critchfield 铃木公雄李宛然铃木史武田中克昌

这是附属于新潟县三条市的Snowpeak总部的一个温泉别墅餐厅综合体。设计旨在以建筑的方式传递Snowpeak的品牌理念——将人类活动的中心从室内转移到室外。建筑物的正面耸立着日本300座名山之一的粟之岳（Awagatake），屋顶与其优雅的山...

这是附属于新潟县三条市的Snowpeak总部的一个温泉别墅餐厅综合体。设计旨在以建筑的方式传递Snowpeak的品牌理念——将人类活动的中心从室内转移到室外。建筑物的正面耸立着日本300座名山之一的粟之岳（Awagatake），屋顶与其优雅的山脊相呼应，覆盖着象征露营生活的材料——柴火。通过将2万根柴火无缝地连续延伸至内外，赋予了建筑独特的"野生"气质，超越了传统建筑的限制。在建筑内部，我们试图通过使用取自当地土壤砌筑的黏土墙、在三条市当地闻名的一家五金厂的废弃零件和耐候钢，将土地和建筑连接为一体。

关键词：

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

汽车软件在敏捷开发中的管理探讨

上海汽车 2024年第6期 53-59页

作者：顾钧上汽集团创新研究开发总院上海201804

为应对外部激烈竞争的市场环境,响应数字化战略,以及解决日益增多汽车软件问题,进行了汽车软件管理方式的研究。根据项目实践经验,梳理了软件开发流程,同时梳理了开发软件无法拉齐测试、工厂生产物料无法拉齐、售后升级失败这3个重点问... 详细信息

为应对外部激烈竞争的市场环境,响应数字化战略,以及解决日益增多汽车软件问题,进行了汽车软件管理方式的研究。根据项目实践经验,梳理了软件开发流程,同时梳理了开发软件无法拉齐测试、工厂生产物料无法拉齐、售后升级失败这3个重点问题。为了解决软件无法拉齐测试,设立了软件集成小组,同时引入了软件包的管理方法。为了解决工厂控制器交样拉齐问题,梳理了控制器交样的各项活动并做了进度排布,同时提出了集成仓库的新模式。为了应对售后升级失败问题,设立了ota工作小组,打通了云端到车端的链路。通过此次管理创新,控制器交样周期压缩50%,成功实现了量产后的软件迭代,更新了开发流程体系。

关键词：汽车软件敏捷开发项目管理

Event-Oriented Dynamic Security Service for Demand Response in Smart Grid Employing Mobile Networks

在线全文

学校读者我要写书评

暂无评论

China Communications 2015年第12期12卷 63-75页

作者： GUO Longhua DONG Mianxiong Kaoru ota WU jun LI Jianhua School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Department of Information and ElectronicEngineering Muroran Institute of Technology

Equipped with millions of sensors and smart meters in smart gird,a reliable and resilient wireless communication technology is badly *** networks are among the major energy communication networks which contribute to global energy consumption increase *** one of core technologies of smart grid employing mobile networks,Demand Response(DR) helps improving efficiency,reliability and security for electric power grid *** of DR events is one of the most important issues in ***,the security requirements of different DR events are dynamic for variousactual *** address this,an event-oriented dynamic security service mechanism is proposed for *** kinds of security services including security access service,security communication service and security analysis service for DR event are composited dynamically by the fine-grained sub *** experiment prototype of the network of State Grid Corporation of China(SGCC) is *** and evaluations shows the feasibility and effectiveness of the proposed scheme in smart grid employing mobile network.

关键词：国家电网公司安全服务智能电表需求响应事件无线通信技术移动网络通信网络

在线全文

学校读者我要写书评

暂无评论

赭曲霉毒素A的健康危害评估

毒理学杂志 2024年第3期38卷 185-192页

作者：杜宏举宁钧宇高珊李国君北京市疾病预防控制中心食物中毒诊断溯源技术北京市重点实验室北京100013 首都医科大学公共卫生学院北京100069

目的赭曲霉毒素A(ochratoxin A,ota)是谷物等食物中常见的真菌毒素,可对人体健康产生多种不良作用。本文基于ota毒性效应进行健康危害评估,旨在确定其安全的暴露水平,为食品安全暴露风险评估提供科学依据。方法本文基于系统性文献检索,... 详细信息

目的赭曲霉毒素A(ochratoxin A,ota)是谷物等食物中常见的真菌毒素,可对人体健康产生多种不良作用。本文基于ota毒性效应进行健康危害评估,旨在确定其安全的暴露水平,为食品安全暴露风险评估提供科学依据。方法本文基于系统性文献检索,对ota进行危害识别和危害特征描述,依据现有毒理学数据确定其安全的暴露水平。结果ota具有肝肾毒性、遗传毒性、生殖发育毒性和致癌性等多种毒性效应,以暴露边界值(margin of exposure,MOE)法进行ota毒性的危害特征描述,以定性反映人群暴露的健康危害。结论表征非肿瘤效应时,ota的MOE取值为200;表征肿瘤效应时,MOE取值为10000。该研究结果可为今后ota的食品安全风险评估提供参考。

关键词：赭曲霉毒素A 食品安全危害评估暴露边界值

在线全文

学校读者我要写书评

暂无评论

5G无线终端空口性能限值制定方法研究

安全与电磁兼容 2024年第1期 88-95页

作者：刘宝殿姜雪刘军董立成安海龙王爽中国信息通信研究院博鼎实华(北京)技术有限公司

空口(ota)性能是衡量无线终端发射和接收信号质量的重要指标之一。为兼顾5G无线终端的ota限值及其它性能指标与成本控制要求,文章从测试样品种类、数量、测试数据处理等方面研究了单输入单输出(SISO)ota测试频段1限值的制定方法。5G无... 详细信息

空口(ota)性能是衡量无线终端发射和接收信号质量的重要指标之一。为兼顾5G无线终端的ota限值及其它性能指标与成本控制要求,文章从测试样品种类、数量、测试数据处理等方面研究了单输入单输出(SISO)ota测试频段1限值的制定方法。5G无线终端空口性能限值的制定使用累计分布函数(CDF)分析样品测试数据,测试样品类型应足够丰富,样品数量50~100即可,通常取80%样品能通过的数值作为行业标准限值制定的参考值。归纳整理的限值制定方法可为5G无线终端ota行业标准限值的制定提供参考。

关键词： 5G无线终端空口性能总辐射功率总全向灵敏度独立组网

Over-the-air measurement for MIMO systems

在线全文

学校读者我要写书评

暂无评论

Frontiers of Information Technology & Electronic Engineering 2021年第8期22卷 1046-1058页

作者： jun LI Yihong QI jun FAN College of Electrical and Information Engineering Hunan UniversityChangsha 410082China General Test Systems Inc. Shenzhen 518054China Department of Research and Development Peng Cheng LaboratoryShenzhen 518000China Department of Research and Development LinkE Technologies(Hengqin)Zhuhai 519030China

Over-the-air(ota)testing is an industry standard practice for evaluating transceiver performance in wireless *** the fifth generation(5G)and beyond wireless systems with high integration,ota testing is probably the only reliable method to accurately measure the transceiver performance,suitable for certification as well as for providing feedback for design verification and ***,multiple-input multiple-output(MIMO)technology is extensively applied for stable connection,high throughput rate,and low *** this paper,we provide an overview of the three main methods for evaluating the MIMO ota performance,namely,the multiprobe anechoic chamber(MPAC)method,the reverberation chamber plus channel emulator(RC+CE)method,and the radiated two-stage(RTS)method,with the aim of providing a useful guideline for developing effective wireless performance testing in future 5G-and-beyond wireless systems.

关键词： Over-the-air(ota)testing Wireless performance testing Fifth generation(5G)and beyond Multiple-input multiple-output(MIMO) Multiprobe anechoic chamber(MPAC) Radiated two-stage(RTS) Reverberation chamber plus channel emulator(RC+CE)

A 20 μW 95 dB dynamic range 4th-order Delta-Sigma modulator with novel power efficient operational transconductance amplifier and resonator

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science C(Computers and Electronics) 2011年第6期12卷 486-498页

作者： Jian XU Xiao-bo WU Meng-lian ZHAO jun-yi SHEN Institute of VLSI Design Zhejiang University Hangzhou 310027 China

A low power high performance Delta-Sigma modulator for portable measurement applications is presented. To reduce power consumption while maintaining high performance, a fully feedforward architecture with a comprehensive system-level design is implemented. As a key building block, a novel power efficient current mirror operational transconductance amplifier (ota) with a fast-settling less-error switched-capacitor common-mode feedback (SC CMFB) circuit is introduced, and the effects of both gain nonlinearity and 1/f noise of ota are discussed. A new method to determine the voltage gain of an ota is also proposed. The bottom terminal parasitic effect of poly-insulator-poly (PIP) capacitors is considered. About an extra 20% of capacitance is added to the total capacitance load. A power and area efficient resonator is adopted to realize a coefficient of 1/90 for 50% power and 75% area reduction compared with conventional designs. The chip is implemented in a low cost 0.35 μm complementary metal oxide semiconductor (CMOS) process. The total power consumption is 20 μW with a 1.5 V supply, and the measured dynamic range (DR) is 95 dB over a 1 kHz bandwidth. Experimental results show that a high figure-of-merit (FOM) is achieved for the designed modulator in comparison with those from the literature.

关键词： Low power High performance Power efficient ota and resonator Delta-Sigma modulator

Current state of practice for colonic diverticular bleeding in 37 hospitals in Japan: A multicenter questionnaire study

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Endoscopy 2016年第20期8卷 785-794页

作者： Ryota Niikura Naoyoshi Nagata Hisashi Doyama Ryosuke ota Naoki Ishii Katsuhiro Mabe Tsutomu Nishida Takuto Hikichi Kazuki Sumiyama jun Nishikawa Toshio Uraoka Shu Kiyotoki Mitsuhiro Fujishiro Kazuhiko Koike Department of Gastroenterology Graduate School of Medicinethe University of Tokyo Bunkyo-ku Tokyo 113-8655 Japan Department of Gastroenterology and Hepatology National Center for Global Health and MedicineShinjuku-ku Tokyo 162-8655 Japan Department of Gastroenterology Ishikawa Prefectural Central Hospital Kanazawa-shiIshikawa 920-8201 Japan Department of Gastroenterology St. Luke’s International Hospital Chuo-ku Tokyo 104-8560 Japan Division of Endoscopy Hokkaido University Hospital Kita-ku Sapporo 060-0808 Hokkaido Japan Department of Gastroenterology National Hospital Organization Hakodate Hospital KawaharachouHakodate-shi 041-0844 Hokkaido Japan Department of Gastroenterology Toyonaka Municipal Hospital Toyonaka-shi Osaka 560-0055 Japan Department of Endoscopy Fukushima Medical University Hospital Fukushima-shi Fukushima 960-1295 Japan Department of Endoscopy the Jikei University School of Medicine Minato-ku Tokyo 105-8471Japan Department of Clinical Laboratory Science Yamaguchi University Graduate School of Medicine Ube-shiYamaguchi 755-0046 Japan Department of Gastroenterology National Hospital Organization Tokyo Medical Center Meguro-ku Tokyo 150-0021 Japan Department of Gastroenterology Shuto General Hospital Yanai-shi Yamaguchi 742-0032 Japan Endoscopy and Endoscopic Surgery the University of Tokyo Hospital Bunkyo-ku Tokyo 113-8655 Japan

AIM To clarify the current state of practice for colonic diverticular bleeding(CDB) in *** We conducted multicenter questionnaire surveys of the practice for CDB including clinical settings(8 questions),diagnoses(8 questions),treatments(7 questions),and outcomes(4 questions) in 37 hospitals across *** answers were compared between hospitals with high and low number of inpatient beds to investigate which factor influenced the *** Endoscopists at all 37 hospitals answered the questions,and the mean number of endoscopists at these hospitals was *** all the hospitals,computed tomography was performed before colonoscopy in 67% of the *** rate of bowel preparation was 46.0%.Early colonoscopy was performed within 24 h in 43.2% of the *** the hospitals,83.8% performed clipping as first-line endoscopic *** than half of the hospitals experienced less than 20% rebleeding events after endoscopic *** significant difference was observed in the annual number of patients hospitalized for CDB between high-(≥700 beds) and low-volume *** emergency visits(P=0.012) and endoscopists(P=0.015),and less frequent participation of nursing staff in early colonoscopy(P=0.045) were observed in the high-volume *** Some practices unique to Japan were found,such as performing computed tomography before colonoscopy,no bowel preparation,and clipping as first-line ***,the number of staff differed,the practices for CDB were common irrespective of hospital size.

关键词： colonic diverticular hemorrhage lower gastrointestinal bleeding computed tomography endoscopy bowel preparation

Extraordinary tunable dynamic range of electrochemical aptasensor for accurate detection of ochratoxin A in food samples

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2017年第2期6卷 70-76页

作者： Lin Cheng Hao Qu jun Teng Li Yao Feng Xue Wei Chen School of Food Science and Engineering Hefei University of TechnologyHefei230009China College of Veterinary Medicine Nanjing Agricultural UniversityNanjing210095China

We report the design of a sensitive,electrochemical aptasensor for detection of ochratoxin A(ota)with an extraordinary tunable dynamic sensing *** electrochemical aptasensor is constructed based on the target induced aptamer-folding detection mechanism and the recognition between ota and its aptamers results in the conformational change of the aptamer probe and thus signal changes for *** dynamic sensing range of the electrochemical aptasensor is successfully tuned by introduction of free assistant aptamer probes in the sensing *** electrochemical aptasensor shows an extraordinary dynamic sensing range of 11-order magnitude of ota concentration from 10^−8 to 10^2 ng/*** great significance,the signal response in all ota concentration ranges is at the same current scale,demonstrating that our sensing protocol in this research could be applied for accurate detections of ota in a broad range without using any complicated treatment of signal ***,ota spiked red wine and maize samples in different dynamic sensing ranges are determined with the electrochemical aptasensor under optimized sensing *** tuning strategy of dynamic sensing range may offer a promising platform for electrochemical aptasensor optimizations in practical applications.

关键词： Electrochemical aptasensor Tunable dynamic detection range ota detection Extraordinary dynamic range