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浏览/检索结果: 共13条，第1-10条 帮助

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Spatiotemporal characterization of aerosols and trace gases over the Yangtze River Delta region, China: impact of trans-boundary pollution and meteorology 期刊论文  OAI收割
ENVIRONMENTAL SCIENCES EUROPE, 2022, 卷号: 34
作者:  Javed, Zeeshan;  Bilal, Muhammad;  Qiu, Zhongfeng;  Li, Guanlin;  Sandhu, Osama
  |  收藏  |  浏览/下载：42/0  |  提交时间：2022/12/22
Twenty years of China's water pollution control: Experiences and challenges 期刊论文  OAI收割
CHEMOSPHERE, 2022, 卷号: 295, 期号: 0, 页码: 133875
作者:  Tang, Wenzhong;  Pei, Yuansheng;  Zheng, Hua;  Zhao, Yu;  Shu, Limin
  |  收藏  |  浏览/下载：42/0  |  提交时间：2022/11/09
An analysis of first-time and repeat visitors to Korean national parks from 2007 and 2013 期刊论文  OAI收割
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：143/0  |  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.  
Determination of water environment standards based on water quality criteria in China: Limitations and feasibilities 期刊论文  OAI收割
JOURNAL OF ENVIRONMENTAL SCIENCES, 2017, 卷号: 57, 期号: 0, 页码: 127-136
作者:  Zhou, Yunqiao;  Wang, Tieyu;  Bi, Cencen;  Lu, Yonglong;  He, Guizhen
  |  收藏  |  浏览/下载：26/0  |  提交时间：2018/07/20
Towards improvement of grey water footprint assessment: With an illustration for global maize cultivation 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2017, 卷号: 147, 页码: 1-9
作者:  Liu, Wenfeng;  Antonelli, Marta;  Liu, Xingcai;  Yang, Hong
  |  收藏  |  浏览/下载：20/0  |  提交时间：2019/09/25
Towards improvement of grey water footprint assessment: With an illustration for global maize cultivation 期刊论文  OAI收割
JOURNAL OF CLEANER PRODUCTION, 2017, 卷号: 147, 页码: 1-9
作者:  Liu, Wenfeng;  Antonelli, Marta;  Liu, Xingcai;  Yang, Hong
  |  收藏  |  浏览/下载：20/0  |  提交时间：2019/09/25
Preparation and quality control of doxercalciferol soft capsules 期刊论文  OAI收割
Chinese Journal New Drugs, 2016, 卷号: 25, 期号: 24, 页码: 2862-2867
作者:  Sun Yuxia;  Gu Wangwen
  |  收藏  |  浏览/下载：28/0  |  提交时间：2019/01/08
Standards and Traceability for Air Quality Measurements: Flow Rates and Gaseous Pollutants 期刊论文  OAI收割
MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA, 2013, 卷号: 28, 期号: 3, 页码: 167-179
作者:  Tropp, RJ (Tropp, R. J.)[ 1 ];  Chow, JC (Chow, J. C.)[ 1,2 ];  Watson, JG (Watson, J. G.)[ 1,2 ];  Chen, LWA (Chen, L. W. A.)[ 1 ];  Kohl, SD (Kohl, S. D.)[ 1 ]
  |  收藏  |  浏览/下载：31/0  |  提交时间：2018/12/10
Design of controlling system in multi-function durability testing device for vehicle vacuum booster with brake master cylinder (EI CONFERENCE) 会议论文  OAI收割
2012 International Conference on Mechanical and Electronic Engineering, ICMEE 2012, June 23, 2012 - June 24, 2012, Hefei, China
Hao X.; Zhang R.; Li X.; Wang M.
收藏  |  浏览/下载：51/0  |  提交时间：2013/03/25
The quality of vehicle vacuum booster with brake master cylinder is related to the safe of drivers and automobiles. The testing experiment must be executed strictly before leaving factory based on the national standards.The paper introduces the controlling system of multi-function durability testing device  which is designed for doing durable testing experiments and Anti-lock braking system (ABS) performance experiments. The structure and theory of device is presented. The controlling system is illuminated in detail. To test the dynamic property  this system was identified by a recursive BP neural network. According to the character of a great deal of sensors and actuators  the high precision  capabilities and reliability  the distributed control mode (DCS) including the computer and PLC by RS-485 bus is utilized. The four channels testing experiments are achieved at the same time. The test data is directly memorized into the computer. The results of general endurance and ABS endurance testing experiments are shown to demonstrate the excellent performance of the testing device. 2012 Springer-Verlag Berlin Heidelberg.  
Food Standards and Welfare: General Equilibrium Effects SCI/SSCI论文  OAI收割
2012
Xiang T.; Huang J. K.; Kancs D.; Rozelle S.; Swinnen J.
收藏  |  浏览/下载：32/0  |  提交时间：2012/09/04