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Min PAN, Andrew PLUMMER
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 225-231 doi: 10.1007/s11465-018-0509-7
This paper reviews recent developments in digital switched hydraulics particularly the switched inertance hydraulic systems (SIHSs). The performance of SIHSs is presented in brief with a discussion of several possible configurations and control strategies. The soft switching technology and high-speed switching valve design techniques are discussed. Challenges and recommendations are given based on the current research achievements.
关键词: digital hydraulics switched inertance hydraulic systems energy efficiency high-speed switching valve fluid-borne noise
Liquid metal thermal hydraulics R&D at European scale: achievements and prospects
《能源前沿(英文)》 2021年 第15卷 第4期 页码 842-853 doi: 10.1007/s11708-021-0743-2
Core designing of a new type of TVS-2M FAs: neutronics and thermal-hydraulics design basis limits
Saeed GHAEMI, Farshad FAGHIHI
《能源前沿(英文)》 2021年 第15卷 第1期 页码 256-278 doi: 10.1007/s11708-018-0583-x
关键词: TVS-2M FAs core design basis limits VVER-1000 analysis mixture of uranium-gadolinium oxides fuels thermal-hydraulics PARCS WIMS-D5
Jinya KATSUYAMA, Shumpei UNO, Tadashi WATANABE, Yinsheng LI
《机械工程前沿(英文)》 2018年 第13卷 第4期 页码 563-570 doi: 10.1007/s11465-018-0487-9
The thermal hydraulic (TH) behavior of coo-lant water is a key factor in the structural integrity assessments on reactor pressure vessels (RPVs) of pressurized water reactors (PWRs) under pressurized thermal shock (PTS) events, because the TH behavior may affect the loading conditions in the assessment. From the viewpoint of TH behavior, configuration of plant equipment and their dimensions, and operator action time considerably influence various parameters, such as the temperature and flow rate of coolant water and inner pressure. In this study, to investigate the influence of the operator action time on TH behavior during a PTS event, we developed an analysis model for a typical Japanese PWR plant, including the RPV and the main components of both primary and secondary systems, and performed TH analyses by using a system analysis code called RELAP5. We applied two different operator action times based on the Japanese and the United States (US) rules: Operators may act after 10 min (Japanese rules) and 30 min (the US rules) after the occurrence of PTS events. Based on the results of TH analysis with different operator action times, we also performed structural analyses for evaluating thermal-stress distributions in the RPV during PTS events as loading conditions in the structural integrity assessment. From the analysis results, it was clarified that differences in operator action times significantly affect TH behavior and loading conditions, as the Japanese rule may lead to lower stresses than that under the US rule because an earlier operator action caused lower pressure in the RPV.
关键词: structural integrity reactor pressure vessel pressurized thermal shock thermal hydraulic analysis pressurized water reactor weld residual stress
Platform governance in the era of AI and the digital economy
《工程管理前沿(英文)》 2023年 第10卷 第1期 页码 177-182 doi: 10.1007/s42524-022-0241-1
Revisiting digital twins: Origins, fundamentals, and practices
《工程管理前沿(英文)》 页码 668-676 doi: 10.1007/s42524-022-0216-2
关键词: virtual manufacturing digital twins modeling and simulation digitization computational engineering
Development trend of urban design in “digital age”: Pan-dimensionality and individual-ubiquity
《结构与土木工程前沿(英文)》 2021年 第15卷 第3期 页码 569-575 doi: 10.1007/s11709-021-0735-7
关键词: digital age urban design multiple objectives human-computer interaction pan-dimensionality individual-ubiquity
Embracing digital mindsets to ensure a sustainable future
《环境科学与工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11783-024-1799-0
关键词: Wildlife Climate Change Heavy metals Noise LAN Light pollution
Design of a digital currency information system based on the UnionPay network
Hongfeng CHAI, Quan SUN, Yu ZHOU, Tao ZHU
《工程管理前沿(英文)》 2020年 第7卷 第4期 页码 471-484 doi: 10.1007/s42524-020-0134-0
关键词: UnionPay network digital currency information system blockchain smart contracts
Development of a novel two-stage proportional valve with a pilot digital flow distribution
Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG
《机械工程前沿(英文)》 2021年 第16卷 第2期 页码 420-434 doi: 10.1007/s11465-020-0622-2
关键词: two-stage proportional valve digital flow distribution high-speed on/off valve position tracking characteristic dynamic performance
Chen WANG, Yuching WU, Jianzhuang XIAO
《结构与土木工程前沿(英文)》 2018年 第12卷 第4期 页码 461-473 doi: 10.1007/s11709-017-0441-7
关键词: RAC nano-indentation digital image multiscale microscopic randomness homogenization
Amit SHIULY; Debabrata DUTTA; Achintya MONDAL
《结构与土木工程前沿(英文)》 2022年 第16卷 第3期 页码 347-358 doi: 10.1007/s11709-022-0819-z
关键词: support vector machine deep convolutional neural network microscope digital image curing period
Digital microfluidics: A promising technique for biochemical applications
He WANG, Liguo CHEN, Lining SUN
《机械工程前沿(英文)》 2017年 第12卷 第4期 页码 510-525 doi: 10.1007/s11465-017-0460-z
Digital microfluidics (DMF) is a versatile microfluidics technology that has significant application potential in the areas of automation and miniaturization. In DMF, discrete droplets containing samples and reagents are controlled to implement a series of operations via electrowetting-on-dielectric. This process works by applying electrical potentials to an array of electrodes coated with a hydrophobic dielectric layer. Unlike microchannels, DMF facilitates precise control over multiple reaction processes without using complex pump, microvalve, and tubing networks. DMF also presents other distinct features, such as portability, less sample consumption, shorter chemical reaction time, flexibility, and easier combination with other technology types. Due to its unique advantages, DMF has been applied to a broad range of fields (e.g., chemistry, biology, medicine, and environment). This study reviews the basic principles of droplet actuation, configuration design, and fabrication of the DMF device, as well as discusses the latest progress in DMF from the biochemistry perspective.
关键词: digital microfluidics electrowetting on dielectric discrete droplet biochemistry
Digital twin-driven smart supply chain
《工程管理前沿(英文)》 2022年 第9卷 第1期 页码 56-70 doi: 10.1007/s42524-021-0186-9
Subbaraman SRINATH, Chandan KUMAR, M. P. SELVAN
《能源前沿(英文)》 2014年 第8卷 第1期 页码 119-128 doi: 10.1007/s11708-013-0288-0
关键词: shunt active filter (SAF) power quality voltage source inverter (VSI) digital signal processor (DSP) total harmonic distortion (THD) power factor improvement
标题 作者 时间 类型 操作
Core designing of a new type of TVS-2M FAs: neutronics and thermal-hydraulics design basis limits
Saeed GHAEMI, Farshad FAGHIHI
期刊论文
Influence evaluation of loading conditions during pressurized thermal shock transients based on thermal-hydraulics
Jinya KATSUYAMA, Shumpei UNO, Tadashi WATANABE, Yinsheng LI
期刊论文
Design of a digital currency information system based on the UnionPay network
Hongfeng CHAI, Quan SUN, Yu ZHOU, Tao ZHU
期刊论文
Development of a novel two-stage proportional valve with a pilot digital flow distribution
Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG
期刊论文
Three-scale stochastic homogenization of elastic recycled aggregate concrete based on nano-indentation digital
Chen WANG, Yuching WU, Jianzhuang XIAO
期刊论文
Assessing compressive strengths of mortar and concrete from digital images by machine learning techniques
Amit SHIULY; Debabrata DUTTA; Achintya MONDAL
期刊论文
Digital microfluidics: A promising technique for biochemical applications
He WANG, Liguo CHEN, Lining SUN
期刊论文