• Title/Summary/Keyword: 환경 진단

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Expression of Mycosporine-like Amino Acids Biosynthetic Genes in the Chlamydomonas sp. Exposed to Radiofrequency (Radiofrequency에 노출된 Chlamydomonas sp.의 mycosporine-like amino acids 생합성 유전자 발현)

  • Hwang, Jinik;Moh, Sang Hyun;Chang, Man;Lee, Gunsup;Lee, Juyun;Kim, Donggiun;Lee, Taek-Kyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.8
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    • pp.4086-4092
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    • 2013
  • Mycosporine-like amino acids (MAAs) are UV-absorbing substances, and diverse marine organisms have the evolved the capacity to diminished the direct and indirect damaging effects of environmental ultraviolet radiation by synthesis and accumulation of MAAs. In this study, we manufactured a radiofrequency (RF) generation device and applied to microalgal culture. $0.35{\pm}0.05$ mHz of RF was supplied to culture vessel for Chlamydomonas sp. and samples were harvested at the designated time intervals (1, 0.5, 1 and 2 hr). MAAs biosynthetic genes, dehydroquinate synthase homolog (DHQS-like) and nonribosomal peptide synthetase homolog (NRPS-like), were cloned from Chlamydomonas sp. and their gene expressions under the RF exposure were analyzed using qRT-PCR. DHQS-like and NRPS-like gene expressions of Chlamydomonas sp. exposed to RF were increased 1.46 and 1.19 fold at 1 hr, respectively. These results means that DHQS-like and NRPS-like genes can be good biomarker candidates for diagnosis of MAAs biosynthesis in the Chlamydomonas sp.

Study of the Reactivation for Art & Culture Content Space Centering to Local Area, Yeongwol (영월지역의 문화예술 콘텐츠 공간 활성화 방안)

  • Park, Ki-Bok
    • Cartoon and Animation Studies
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    • s.17
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    • pp.163-173
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    • 2009
  • The reactivation for Art & Culture Content Space in Gangwon province need new turning point according to new approach with internal and external change. That should be established in sustainable possibility model with preexisted natural advantage instead of economical depression and global warming of in these days. That is not a choice to get a successful construction of art & culture content space in Gangwon province. Throughout of reactivation of art & culture content space in Gangwon province, this proposal should go on with diversity of culture and concrete art & culture educational program absolutely to get a goal in regional economical success and social good influence. Already Yeongwol region had lots of art & cultural spaces and developmental strategy compared with other regions in decade. In these points, I choose this region and would like to research Yeongwol region in limit. Thus I would examine and study about art & culture content space in Yeongwol region. And I will concretely suggest that this proposal is composed with economical creating employment and incoming. The reactivation for Art &Culture Content Space in Yeongwol will build up social and cultural influences to this region to get a new modern cultural images and improvement of common life of regional people by and large. In the way of the process to globalization, this reactivation project for Art &Culture Content Space in Yeongwol should go on the base of regional culture background as a mean of glocalization paradigm strategically. Ahead of developing model for globalization in macroscopic view point, we have to research the demend of reginal situation of cultural content and build up its own strength points. Because Art & Culture Content Space in Yeongwol is the place of people in Yeongwol directly as itself. And managing plans of reactivation of art & culture content space in Yeongwol should build up with diversity of culture and environmental circumstances.

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Analysis on the EMC evaluating method for applying wireless communications in NPP (원전 내 무선통신 적용에 대한 전자파 적합성 평가방법 분석)

  • Kang, SeungSeok;Lim, Tae Heung;Choo, Jaeyul;Kim, HyungTae;Kim, DaeHee;Byun, Gangil;Park, Jong Eon;Lee, Jun-Yong;Choo, Hosung
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.21 no.12
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    • pp.2221-2231
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    • 2017
  • In this paper, we surveyed previous cases, network protocols (such as Wi-Fi, Zigbee, Z-wave, and WirelessHart) and propagation characteristics on the application of maintaining equipments for instrumentation and control (I&C) using wireless communication techniques inside the nuclear power plant (NPP). In addition, we compared and analyzed the difference of detailed regulations with respect to the electromagnetic interference (EMI) and radio frequency interference (RFI) in the Regulatory Guide 1.180 rev. 1 (RG. 1.180) for adopting the wireless communication techniques inside the NPP, and other regulations, such as MIL-STD 461E and IEC 61000-4, that are recognized in the KINS/RG-N03.09 (Rev. 2). Furthermore, we investigated evaluating factors about electromagnetic properties by considering indoor environments, wave scattering, shielding effectiveness, and the indoor wave attenuation model that were not included in the current electromagnetic compatibility regulation.

Paper-Based Neuraminidase Assay Sensor for Detection of Influenza Viruses (인플루엔자 바이러스 검출을 위한 종이 기반 neuraminidase 효소 활성 평가 센서 개발)

  • Hwang, Cheol-hwan;Jeong, Seong-Geun;Park, Han-Kyu;Lee, Chang-Soo;Kim, Yun-Gon
    • Korean Chemical Engineering Research
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    • v.54 no.3
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    • pp.380-386
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    • 2016
  • In this study, we described a paper-based neuraminidase assay sensor (PNAS) which can be applied to detect the infection by influenza viruses. The PNAS was designed and manufactured to quantitatively identify the levels of neuraminidase in the sample, which is based on colorimetric analysis using the X-Neu5Ac substrate. The limit of detection of the PNAS was determined as 0.004 U/mL of neuraminidase. According to the amount of neuraminidase in human serum, the PNAS could monitor the enzyme activity with a good linearity ($R^2$ > 0.99). In addition, the initial performance of the PNAS has been maintained up to 70 days in the $4^{\circ}C$. Finally, we demonstrated whether the Michaelis-Menten kinetics is applied to the PNAS, which can show the reliability of the enzyme reactions. The kinetic studies indicated that the PNAS provides the good condition for enzyme reactions ($K_m=8.327{\times}10^{-3}M$), but they were performed on paper chip nonetheless. The paper-based neuraminidase assay sensor may be useful in a wide range of rapid and safe detection of influenza virus.

Analysis of Characteristics of Medical Accidents and Disputes in Orthodontic Area (교정과영역의 의료사고 및 분쟁의 성격분석)

  • Hwang, Chung-Ju
    • The korean journal of orthodontics
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    • v.29 no.1 s.72
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    • pp.1-22
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    • 1999
  • As people are more concerned about their health and medical care, there have been an increasing number of medical disputes due to increased medical demand. In order to prevent and provide solution to currently surging medical accidents and disputes related to orthodontic treatment, in July 1998, the Korean Association Of Orthdontists surveyed 2,200 members of Korean Association of orthodontists on 30 items to recognize the pattern of medical accidents and prevent them. The survey was about accident-related items including personal profiles of members and patients who have undergone medical accidents or disputes, the cause and solution to the accidents, cautions related to members orthodontic treatment, and medical recording and archival. Based on the survey result, we analyzed characteristics of medical accidents and disputes in orthodontic area. It is more important to predict and prevent possible medical accidents or disputes based on current situation than to solve them after disputes occur. For this, we should not be negligent in raising treatment proficiency level based on patient-doctor trust and in obtaining new medical information. We should also provide medical environment where Patients themselves can decide whether to get treatment after they are offered detailed explanation on diagnosis, treatment procedure, complication, and possible hazard. We should take caution when treating patients and pay attention to charting and maintenance, which is the most fundamental, as well. Also at the Korean Association of orthodontists level, it is desired to provide education program on prevention and solution to medical accidents and disputes, and actions and organizations that can help when accidents and disputes occur.

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A Study on Life Changes of Oral Lichen Planus Patients by SRRS (SRRS를 이용한 구강 편평태선 환자의 생활변화에 관한 연구)

  • Ko, Myung-Yun;Park, Su-Hyeon;Ok, Su-Min;Huh, Joon-Young;Ahn, Yong-Woo;Jeong, Sung-Hee
    • Journal of Oral Medicine and Pain
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    • v.37 no.1
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    • pp.9-17
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    • 2012
  • Lichen planus is a chronic inflammatory mucocutaneous disease that affects multiple sites of the body. Often it involves the oral mucosa, but also involve other sites such as skin, genitals, scalp and nails. There is no clear cause of oral lichen planus (OLP), current data suggest that OLP is a T-cell mediated autoimmune disorder which may have an altered self-peptide triggering apoptosis of oral epithelial cells. Usually OLP appears in middle-aged women which tends to be chronic with periods of exacerbation and remission. There are many theories those causes the OLP such as psychological and environmental factors, genetic tendency, drugs and more. 60-70% of lichen planus is accompanied by oral lesions, and more than half of its cases are not able to defined by their skin. In this study, among all the possibility(possible) theories, we tried to evaluate the influence of emotional stress in exacerbating OLP. There were thirty patients with a clinical or histological diagnosis of OLP and other thirty subjects who did not show any signs of systemic disorders include OLP. They were evaluated by using modified Holmes and Rahe's Social Readjustment Rating Scale (SRRS). As a result, a significantly higher level of stress was found in the OLP patients than the control group. Therefore it could be concluded that psychological stressors play an important role in the exacerbating OLP.

A Study on the Regeneration Policies of an Old Industrial Area in Metropolis : A Case of Sasang Industrial Area (대도시지역 노후공업지역 재생정책 방향에 관한 연구 : 사상공업지역을 중심으로)

  • Kim, Gyeong-Su
    • Journal of the Korean Association of Geographic Information Studies
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    • v.17 no.4
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    • pp.144-155
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    • 2014
  • The industrial areas including large industrial complexes formed by the process of the growth-oriented industrialization in the past have been attributed to worsening the urban competitiveness of cities due to their infrastructure shortages and aging. Government-led regeneration projects for old industrial complexes have been implemented on a trial basis, but there is a problem with applying a uniform regeneration planning to all the regional industrial complexes with different circumstances and physical environments. In this context, this study diagnosed the social conditions and physical characteristics of the Sasang industrial area in the city of Busan formed by private-led projects in the past and then tried to suggest its regeneration directions. The study area was characterized as its weakening industrial function, infrastructure shortage, and increasing development pressure. Based on these regional characteristics, the regeneration directions were suggested. In the planning phase, pubic-led infrastructure expansion is first needed and urban renewal needs to be applied to some areas designated as priority maintenance areas. In the implementation phase, stepwise projects are required in the medium to long term and it is important to build upon the consensus with private companies through establishing collaborative governance.

A Phenomenological Study on Experiences as a Dental Intermediary Manager (치과 중간관리자의 근무경험에 대한 현상학적 연구)

  • Moon, Hak-Jin;Lim, Soon-Ryun
    • Journal of dental hygiene science
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    • v.16 no.4
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    • pp.263-271
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    • 2016
  • This study aimed at comprehending the duty, role, and difficulty of intermediary manager through in-depth investigation of dental hygienist intermediary managers experienced over 10 years working in a dental clinic. In-depth interviews were conducted with 10 dental intermediary managers and Giorgi's analysis method was used to analyze the data. Findings revealed that the work experience of the dental hygienist intermediary managers appeared in the range of "becoming an intermediary manager through various processes", "various duties that they experience as an intermediary manager", "difficulty as an intermediary manager", "ability that they perceive as necessary for being a dental intermediary manager", and "worthiness they feel as the intermediary manager". The dental intermediary managers complained of difficulties at work, and appeared to perform various tasks such as human resource management, clinic management support, and patient's management. Accordingly, the researcher considers that research on dental intermediary managers' capacity development necessary.

An analytical Study of The Middle School Home Economics Instructions I - Centering on Development of Checklist for Observing and Analytical framwork- (중학교 가정 교과 수업 분석 연구 I - 수업 관찰 체크리스트와 분석 틀 개발을 중심으로 -)

  • Yoon In-Kyung;Lee Soo-Jeong
    • Journal of Korean Home Economics Education Association
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    • v.17 no.2
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    • pp.171-182
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    • 2005
  • The purpose of this study is to develop the Checklist for Observing and Analytical Framwork that assesses a series of activities related to the classroom teaching which is the core of teachers' professionalism. In clarifying the objectives of observing the classroom activities, it would be effective to understand the overall outline of the home economics instructions as well as to define the elements of the classroom work ; hence, the classroom work has been modularized in several stages, namely, planning/organization, execution, and evaluation. The stages are divided into nine elements of the classroom work in general : (1) Presenting the study objective, (2) Structuring classroom activities, (3) Teaching the content, (4) Question-and-answers (5) Feedback the to the students' responses, (6) Offering learning opportunities, (7) Stimulating the students' interest, (8) Evaluation, (9) Applying the result of the evaluation.

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Phytosociological Study of the Oak (Quercus spp.) Forests on Mts. Kaya, Bisul, Unmun and Kaji in Southern Kyongpook Province (경상북도 남부 가야산, 비슬산, 운문산, 가지산 일대 참나무림의 식물사회학적 연구)

  • Song, Jong-Seok
    • The Korean Journal of Ecology
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    • v.24 no.1
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    • pp.9-18
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    • 2001
  • The present study was undertaken to classify and describe the oak (Quercus spp). forests on Mts. Kaya, Bisul, Unmun and Kaji in southern Kyongpook Province, Korea by using a reciprocal averaging method (RA ordination) and the methodology of the ZM school of phytosociology. A temporary vegetation table was prepared by the RA ordination. The diagnostic species of the Quercus forests derived from the ordination were compared with the characteristic and differential species of the existing phytosociological vegetation units of the other mountainous areas of Korea. As a result, the forest vegetation was classified into the next vegetation units: Fagetea crenatae Miyawaki et al. 1968; Acero-Quercetalia mongolicae Song 1988; Rhododendro-Qurcion mongolicae Song 1988, 1. Stephanandra incisa-Quercus mongolica community 1-1 Sasa borealis subcommunity, 1-2 Disporum smilacinum subcommunity; Lespedezo-Quercion serratae Takeda et al. 1994, 2. Spodiopogon sibiricus-Quercus serrata community. The Rhododendro-Qurcion mongolicae and the Lespedezo-Quercion serratae correspond to the cool-temperate forests of the northern type and the southen type (Honda 1922), respectively, in the Korean Peninsula. Also some phytosociological problems in Korea were discussed here in detail from the floristic viewpoint in the present study.

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