• Title/Summary/Keyword: ministry of environment

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Statistical characteristics of sustained wind environment for a long-span bridge based on long-term field measurement data

  • Ding, Youliang;Zhou, Guangdong;Li, Aiqun;Deng, Yang
    • Wind and Structures
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    • v.17 no.1
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    • pp.43-68
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    • 2013
  • The fluctuating wind induced vibration is one of the most important factors which has been taken into account in the design of long-span bridge due to the low stiffness and low natural frequency. Field measurement characteristics of sustained wind on structure site can provide accurate wind load parameters for wind field simulation and structural wind resistance design. As a suspension bridge with 1490 m main span, the Runyang Suspension Bridge (RSB) has high sensitivity to fluctuating wind. The simultaneous and continuously wind environment field measurement both in mid-span and on tower top is executed from 2005 up to now by the structural health monitoring system installed on this bridge. Based on the recorded data, the wind characteristic parameters, including mean wind speed, wind direction, the turbulence intensity, the gust factors, the turbulence integral length, power spectrum and spatial correlation, are analyzed in detail and the coherence functions of those parameters are evaluated using statistical method in this paper. The results indicate that, the turbulence component of sustain wind is larger than extremely strong winds although its mean wind speed is smaller; the correlation between turbulence parameters is obvious; the power spectrum is special and not accord with the Simiu spectrum and von Karman spectrum. Results obtained in this study can be used to evaluate the long term reliability of the Runyang Suspension Bridge and provide reference values for wind resistant design of other structures in this region.

The regulatory system for imported-cargo radiation monitoring in Korea and a proposal for its improvement

  • Wo Suk Choi ;Tae Young Kong ;Hee Geun Kim;Eun Ji Lee ;Seong Jun Kim ;Jin Ho Son ;Chang Ju Song;Hwa Pyoung Kim;Cheol Ki Jeong
    • Nuclear Engineering and Technology
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    • v.55 no.1
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    • pp.1-11
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    • 2023
  • To protect people and the environment from environmental radiation, the Act on Protective Action Guidelines against Radiation in the Natural Environment was formulated in Korea in 2011. This law regulates matters related to radiation safety that can be encountered in life. In accordance with this law, radiation monitoring equipment is operated at major airports and ports across the country, ensuring radiation monitoring of imported cargo. Currently, six ministries conduct radiation monitoring of imported cargo: the Nuclear Safety and Security Commission; the Korea Customs Service; the Ministry of Food and Drug Safety; the Ministry of Environment; the Ministry of Agriculture, Food and Rural Affairs; and the Korea Forest Service. Each ministry designates the relevant cargo items for radiation monitoring. The objective of this study was to comprehensively review the Korean radiation monitoring system for imported cargo and identify the areas and scopes of improvement. This paper also proposes a new law and an integrated supervision plan, which involves establishing a dedicated department to enhance the efficiency and professionalism of the national radiation monitoring system for imported cargo. The review will contribute to the development of a more sophisticated national radiation monitoring system for imported cargo.

Remote Sensing and Ecosystem Management in Korea (한국에서의 원격탐사와 생태계 관리)

  • Kim, Dae-Seon;Ryu, Cheol-Sang;Chun, Seung-Kyu
    • Journal of Environmental Impact Assessment
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    • v.3 no.1
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    • pp.77-82
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    • 1994
  • A Nationwide survey of ecosystem in the Republic of Korea was accomplished from 1986 to 1990 and in that survey, GIS and remote sensing were used partially. This was done by the Ministry of Environment(MOE), which introduced remote sensing and GIS for environment management in late 1980's. Especially the National Institute of Environmental Research (NIER) are under the research on systematization of environmental information with an ultimate goal of application of GIS and remote sensing to environmental impact assessment. Although the Korean peninsula is in a non-tropical zone, we introduce two case studies on remote sensing applications to ecosystem managements in the Republic of Korea. One is a study on change detection in urban vegetation of Seoul with Landsat data and the other is a study on detection of insect damaged pine tree area using Landsat TM data. The techniques involved and the conclusion from these studies were relevant to vegetation studies in tropical ecosystem.

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The Measurement of the Indoor Air Quality in Subway (전동차의 실내 공기청정도 측정 평가)

  • So, Jin-Sub;Yoo, Seong-Yeon;Yun, Cha-Jung;Kim, Wan-Jong;Kang, Sung-Hae;Park, Duk-Sin;Cho, Young-Min;Kwon, Soon-Bark;Park, Eun-Young
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.1325-1329
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    • 2007
  • Indoor air quality is an important determinant of human health and comfort. However, the complexity of pollution sources and the multitude of parties responsible for creating indoor exposures makes the improvement of air quality difficult. The HVAC(Heating, Ventilating and Air-Conditioning) system is important facility to provide comfortable environment passenger service. The Ministry of Environment is established "Indoor Air Quality Management guidelines in Public Facilities"in December 2006. Hereupon, the train and the subway are included. In this research air quality in the Subway compartment has been measured. As a result, the concentrations of PM10 and $CO_2$ were reached to 93% and 61% of the regulation values, respectively. Thus, the indoor air qualities of subway have been proved that they satisfy the recommended guidelines by the Ministry of Environment.

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Primary Ecological Effect Analysis of Emergent Water Transportation in the Lower Reaches of Tarim River Based on RS Technology

  • Xu, Mei;Huang, ShiFeng;He, Yu
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1301-1303
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    • 2003
  • Tarim River is the biggest inland river in China, its problem of eco-environment is worsening in the lower reach. For keeping this trend within limits, the measure of emergent water transportation to the lower reach was taken. In this paper, the remote sensing technology will be applied to the analysis of eco-environment effect after water transportation. The result is: the vegetation index and cover ratio increased but not markedly, the eco-environment situation can't been improved obviously up to now. It is some effective but temporary . The continuity, quality and quality of water source for the Tarim River must been ensured.

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The Measurement of the Indoor Air Quality in KTX Train (KTX 객실내 공기청정도 측정)

  • So, Jin-Sub;Lee, Sung-Uk;Park, Duck-Shin;Yoo, Seong-Yeon
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.1210-1213
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    • 2006
  • Indoor air quality is an important determinant of human health and comfort. However, the complexity of pollution sources and the multitude of parties responsible for creating indoor exposures makes the improvement of air quality difficult. The KTX HVAC(Heating, Ventilating and Air-Conditioning) system is important facility to provide comfortable environment passenger service. The Ministry of Environment is planning to enforce$\square\square$Indoor Air Quality Management law in Public Facilities$\square\square$in year 2008. Hereupon, the train and the subway are included. In this research air quality in the KTX Train compartment has measured. As a result, The average amounts of PM10(particulate matters), $CO_2$(carbon dioxide)measured $20{\mu}g/m^3$, 1,097ppm in KTX respectively. There are compare to regulation the value is 10% for PM10 and 43% for $CO_2$. Thus, the indoor air quality of KTX train have been proved satisfy the recommendation the Ministry of Environment guidelines.

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Analysis of Squalene Synthase Expression During the Development of Ganoderma lucidum

  • Zhao, M.W.;Zhong, J.Y.;Liang, W.Q.;Wang, N.;Chen, M.J.;Zhang, D.B.;Pan, Y.J.;Jong.S.C.
    • Journal of Microbiology and Biotechnology
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    • v.14 no.1
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    • pp.116-120
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    • 2004
  • The medicinal properties of Ganoderma lucidum have been recognized in China for many centuries. Active pharmaceutical components include triterpenes. To elucidate the molecular regulation of triterpene biosynthesis in this mushroom, a 57-base pair DNA fragment encoding the fourth conserved domain SQ-4 (SMGLFLQKTNIIRDYNEDL) of squalene synthase was synthesized and cloned into the expression vector pET-32a(+). The recombinant fusion protein induced by IPTG (isopropyl-$\beta$-D-thiogalactopyranoside) was overexpressed in the Escherichia coli. Using the purified recombinant fusion protein of 20.9 kDa, a specific polyclonal antibody was obtained from immunized rabbit. Expression of squalene synthase at different development stages of Ganoderma lucidum was analyzed.

A Study on the Analysis of School Health Program by the Chronological Events in Korea (우리나라 학교보건사업(學校保健事業) 변천에 관(關)한 연구)

  • Kim, Sang-Uk
    • Journal of the Korean Society of School Health
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    • v.2 no.2
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    • pp.36-61
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    • 1989
  • The purpose of this study was to identify and name clusters of school health program, and to describe some of the characteristics of administratie supports. The literature, materials and public documents were analysed by the chronological events from 1945 to 1989. The result of this study is as follows : 1. A brief summary of the history of school health program was included as an introduction to the analysis of the current programs of school health. Five current school health-program clusters were identified from findings of a study of programs : 1) physical assessment, laboratory examination and health services for the students, 2) health instruction 3) healthful living condition (environmental health), 4) health clinic management, 5) administrative supports. 2. The earliest school- based efforts focused on communicable disease pevention by the ministry of health and social affairs. Annual medical inspection (health assessment) for school children for eyes, ears, nose, and throat were mandated nation-wide in 1951 by physical assessment Act. 3. In 1979, the health instruction of schools to improve the health status of students was improved by health department in the Ministry of Education 4. Experiences in healthful environment were basic components of the school health program. However, without careful planning and supervision these experiences were not contributed to the goal of school health. The formal program of school health environment were initiated in 1979 5. In 1980, the guidelines of school health clinic management were prepared by Ministry of Education such as guidance of essential degrees and facilities in school health clinic. 6. Two patterns of administration of school health programs existed in Korea. In one the school health department operated its own health program and in the other the physical education department operated the health program within the school system. The school health department was established in Ministry of Education from 1979 to 1982. Improved school health programs will be a key element in the comprehensive national child health policy which I will ask the Ministry of Education to develop for the Department.

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