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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 发表日期：2017     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 An analysis of first-time and repeat visitors to Korean national parks from 2007 and 2013 期刊论文 Journal of Mountain Science, 2017, 卷号: 14, 期号: 12, 页码: 2527-2539 作者:  Yunseon CHOE;  Michael A. SCHUETT;  Kyu-Won SIM 收藏  |  浏览/下载：123/0  |  提交时间：2017/12/07 ThIs Paper ExamIned VIsiTors To Bukhansan NatiOnal Park In Korea Based On First-time And Repeat vIsitatiOn. Bukhansan NatiOnal Park Is Korea's Most Heavily vIsited NatiOnal Park With Annual vIsitatiOn Of Six milliOn VIsiTors In 2015. Data Used In ThIs Article Were Collected On-site In The Park In 2007 And 2013 By The Korea NatiOnal Park Service (Knps). The Study Variables Included Socio-demographics  Travel Behavior  Motivation  And Satisfaction With Park Attributes  Services And Facilities. Data Were Analyzed By Each Study Year For First-time And Repeat Visitors. Results Showed Significant Differences For Both First-time And Repeat Visitors.On Several Socio-demographic  Travel Behavior  And Motivation Variables Within Each Study Year. For Satisfaction With Park Attributes  Facilities And Services  First-time VisiTors Were Significantly Different From Repeat VisiTors On Seven Variables For Both Years. implicatiOns Are Given Regarding Programs And Services To Improve visiTor satisfactiOn And Sustain The Natural  Cultural And HisTorical Resources At Bukhansan nAtional Park And Other nAtional Parks In Korea. Future Research Suggestions Are Provided To Learn More About visiTor Characteristics  StAndards Of Quality And Preferences In The National Parks.   Fatigue crack growth life prediction of railway hollow axis with flaws under press fitting and measured dynamic stress spectrum 期刊论文 Zhongguo Kexue Jishu Kexue/Scientia Sinica Technologica, 2017, 卷号: 47, 页码: 656-665 作者:  Xu, Zhongwei;  Wu, Shengchuan;  Duan, Hao;  Kang, Guozheng;  Ma, Lijun 收藏  |  浏览/下载：4/0  |  提交时间：2019/11/26 Damage tolerance analysis  Damage tolerance designs  High - speed railways  High speed train (HST)  Linear elastic fracture mechanics  Research results  Semi-elliptical surface cracks  Singular elements   Simulation on fuzzy control of steam temperature for a lignite-fired boiler 期刊论文 Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2017, 卷号: 38, 页码: 27-32 作者:  Wang, Bing-Qi;  Han, Xiao-Qu;  Zhang, Cheng;  Zhou, Yan;  Yan, Jun-Jie 收藏  |  浏览/下载：2/0  |  提交时间：2019/11/26 Conventional pid  Fuzzy - pid controls  Fuzzy-PID  Lignite-fired boilers  Rapidity and stabilities  Research results  Steam temperature  Steam temperature control   Influence of Small-Molecule Oxygenous Fuel on Soot Precursor from n-Heptane Combustion 期刊论文 Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University, 2017, 卷号: 51, 页码: 38-42 and 79 作者:  Wang, Ying;  Ke, Xichun;  Guo, Chunlan;  Shen, Zhenxing 收藏  |  浏览/下载：4/0  |  提交时间：2019/11/26 Combustion model  Combustion pro-cess  Incomplete combustion  Methanol molecules  n-Heptanes  Oxygen functional groups  Polycyclic aromatic hydrocarbon (PAH)  Research results   Influences of Arc Plate on Arc-quenching Performance of Bridge-shape Double-break Circuit Breaker 期刊论文 Gaodianya Jishu/High Voltage Engineering, 2017, 卷号: 43, 页码: 845-850 作者:  Wang, Qian;  Qu, Jianyu;  Li, Xingwen 收藏  |  浏览/下载：4/0  |  提交时间：2019/11/26 Arc quenching  Arc quenching chamber  Chamber prototype  Current-limiting circuit breaker  Interruption performance  Repulsion force  Research results  Three-dimensional finite element method   Influence of Paralleled Capacitor on Paralleled High-voltage SF6Circuit Breakers with Highly Coupled Split Reactor 期刊论文 Gaodianya Jishu/High Voltage Engineering, 2017, 卷号: 43, 页码: 866-871 作者:  Su, Haibo;  Guo, Ze;  Mo, Wenxiong;  Li, Xingwen;  Wang, Yong 收藏  |  浏览/下载：4/0  |  提交时间：2019/11/26 Circuit modeling  Current interruption  Current limiting  Highly coupled split reactor  Parallel  Recovery voltage  Research results  SF6 circuit breakers