• 한국수자원학회:학술대회논문집
• /
• 한국수자원학회 2006년도 학술발표회 논문집
• /
• pp.45-50
• /
• 2006

About 50% of the population and 75% of the properties concentrate on the flood plain in Japan. The rivers have intimate relationship with our lives. Those conditions have been seen after modern river improvement projects that began about a century ago. The technology which was introduced from foreign countries was improved in conformity with geographical features and the climate condition of our nation, and has redeveloped as a Japanese original technology. In 1940's, Japan had serious natural disasters that were caused by large- scale typhoons. Those typhoons wiped out everything completely. Even though the government realized the importance of flood control and management after those natural disasters, civil work still aimed to economic development. Those construction works have become the one of factors for concentrating population and degrading natural environment in urban areas. Deterioration of river environment has become serious issue in urban development and main cause of pollution. The approaches for environmental restorations which were started about 30 years ago aimed to harmonize with nature environment and cities and human lives. There have been going on many projects called 'river environmental improvement projects', the 'nature friendly river works' and 'natural restoration projects.' The society has tried to find a way to live in harmony with nature. As for societies symbiotic with habitats will form the safe country in the history and the spectacle. Such as the symbiotic of the river or the basin where discharge, water quality, nature, the history, landscape, the local society and also for culture were built in is achieved. Examples of working, applied to restoration technologies and the one to describe the mechanism construction are been shown in the paper. Furthermore, write for an international spread of the river technology of Japan to attempt.

• 한국콘텐츠학회논문지
• /
• 제17권1호
• /
• pp.242-261
• /
• 2017

이 연구의 목적은 준고령자의 재취업에 영향을 미치는 요인을 밝혀내고 이들의 취업활성화를 위한 실질적이고 구체적인 개선방안을 모색하는데 있다. 이러한 연구 목적에 따라 대구광역시에 거주하는 50~64세 준고령자 가운데, 현재 구직활동을 하고 있거나 재취업 상태에 있는 준고령자 375명을 대상으로 2016년 3월 18일부터 4월 10일까지 직접 면담조사를 실시하였다. 로지스틱회귀분석을 통한 분석결과 성별, 주관적 건강상태, 근무연수, 정보제공 및 영향력 제공 등은 준고령자의 재취업에 통계적으로 유의미한 정적 영향을 미치는 것으로 밝혀졌다. 그러나, 단순노무직 및 구직기간은 준고령자의 재취업에 통계적으로 유의미한 부적 영향을 미치는 것으로 밝혀졌다. 연구결과를 바탕으로 준고령자의 재취업을 위한 정책적 함의를 논의하였다.

• 한국건설관리학회논문집
• /
• 제8권6호
• /
• pp.129-138
• /
• 2007

현행 공공건설사업의 타당성조사 결과가 객관적 중립적으로 이루어지지 않는 다는 지적에 따라 정부는 이에 대한 개선방안으로 타당성조사 시행 전에 $\ulcorner$예비타당성조사$\lrcorner$를 새로이 도입하였다. 이 예비타당성조사는 크게 도로, 철도, 항만, 공항문화 관광 등으로 구분되는데 이중 문화 관광사업의 경우, 주5일 근무제의 확산 및 지방문화 시대의 돌입 등으로 인하여 그 성격과 기능이 나날이 복잡 다양해지고 있으며 다른 부분의 사업에 비해 경제성분석의 분석 항목인 편익과 비용의 구조 또한 복잡하다. 이에 본 논문에서는 문화 관광부분사업의 예비타당성조사의 수행 실태를 파악하고, 경제성 분석 항목 중 비용항목에 대해 검토하여 분석모델을 설정하고 문제점을 도출하여 이에 대한 개선방안을 제시하였다.

• 대한치과기공학회지
• /
• 제32권3호
• /
• pp.221-232
• /
• 2010

Purpose: It is necessary for dental technicians exposed to hazardous chemicals in the dental laboratories to be informed of the various harmful effects of chemicals for their health and safety. The purposes of this study was to investigate the actual condition of the use of MSDS in dental laboratories and the recognition rate of MSDS for dental technicians. Methods: 231 dental technicians who were self-written questionnaire. The results were analyzed by SPSS 12.0. The answers to the questionnaire underwent frequency analysis, chi-square test and correlation analysis were performed to investigate association between health effects and recognition rate of chemical information. Results: The results from the effects of damage caused by chemicals 60.7%, and when it was less than 2 years working experience 47.6%. Currently any dental laboratories(rooms) was not furnished MSDS(0%) and even similar data furnishing rate was only 17.3%. Answer rate of 'Do not know about MSDS' was 73.6%. In addition to, education in the types and characteristics of chemicals(74.5%) does not receive all the higher education. For the question of 'To prevent human risks and accidents, is to provide chemical information needed', the answer rate of 'needed' was 87.2%. Moreover, the answer rate of 'To provide chemical information that could prevent accidents' was 76.6%. Therefore it was found that dental technicians need to be provided for chemical information. In addition, they wanted to get education related to chemicals used in the workplace(80.5%), and 90.9% was answered that they was willing to keep MSDS in they workplace. Conclusion: This study investigated the current dental laboratories(rooms) and the MSDS for the awareness and recognition of workers was very low, education was not being conducted properly. The dental laboratories(rooms) of the compact characteristics of the MSDS was not reasonably accessible and the furnishing location, dental laboratories(rooms) for the real item was needed for improvement. MSDS for dental technicians through education and promotion of information about chemicals and chemicals was to prevent health problems caused by the MSDS that will raise awareness of the necessity.

• 한국환경복원기술학회지
• /
• 제17권1호
• /
• pp.13-25
• /
• 2014

The study aims to investigate and analyze actual situations of managing topsoil at forest development sites based on their types, in pursuit of conservation and effective use of national land. To do this, I selected target areas by deducting the typical types of forest development and analyzed the condition of soil at the target areas before and after development. In addition to this, I interviewed associated construction staffs to conduct study on present situations of topsoil management and find out its problems. I also surveyed of relevant experts, with the intention of seeking solutions. The results of the study have been shown that firstly, experts preferred collecting and recycling of topsoil as methods of improvement of soil conditions for plant growth. Secondly, the importance of topsoil has been well noticed and there were few construction sites using the methods. However, working and economical problems have disturbed carrying out these solutions. Thirdly, after constructions, organic matter and total-nitrogen content decreased in general which were necessary for plant growth in terms of soil conditions.

• Journal of Audiology & Otology
• /
• 제24권4호
• /
• pp.167-173
• /
• 2020

Background and Objectives: Top-down restoration of distorted speech, tapped as phonemic restoration of speech in noise, maybe a useful tool to understand robustness of perception in adverse listening situations. However, the relationship between phonemic restoration and speech perception in noise is not empirically clear. Subjects and Methods: 20 adults (40-55 years) with normal audiometric findings were part of the study. Sentence perception in noise performance was studied with various signal-to-noise ratios (SNRs) to estimate the SNR with 50% score. Performance was also measured for sentences interrupted with silence and for those interrupted by speech noise at -10, -5, 0, and 5 dB SNRs. The performance score in the noise interruption condition was subtracted by quiet interruption condition to determine the phonemic restoration magnitude. Results: Fairly robust improvements in speech intelligibility was found when the sentences were interrupted with speech noise instead of silence. Improvement with increasing noise levels was non-monotonic and reached a maximum at -10 dB SNR. Significant correlation between speech perception in noise performance and phonemic restoration of sentences interrupted with -10 dB SNR speech noise was found. Conclusions: It is possible that perception of speech in noise is associated with top-down processing of speech, tapped as phonemic restoration of interrupted speech. More research with a larger sample size is indicated since the restoration is affected by the type of speech material and noise used, age, working memory, and linguistic proficiency, and has a large individual variability.

• 대한청각학회지
• /
• 제24권4호
• /
• pp.167-173
• /
• 2020

Background and Objectives: Top-down restoration of distorted speech, tapped as phonemic restoration of speech in noise, maybe a useful tool to understand robustness of perception in adverse listening situations. However, the relationship between phonemic restoration and speech perception in noise is not empirically clear. Subjects and Methods: 20 adults (40-55 years) with normal audiometric findings were part of the study. Sentence perception in noise performance was studied with various signal-to-noise ratios (SNRs) to estimate the SNR with 50% score. Performance was also measured for sentences interrupted with silence and for those interrupted by speech noise at -10, -5, 0, and 5 dB SNRs. The performance score in the noise interruption condition was subtracted by quiet interruption condition to determine the phonemic restoration magnitude. Results: Fairly robust improvements in speech intelligibility was found when the sentences were interrupted with speech noise instead of silence. Improvement with increasing noise levels was non-monotonic and reached a maximum at -10 dB SNR. Significant correlation between speech perception in noise performance and phonemic restoration of sentences interrupted with -10 dB SNR speech noise was found. Conclusions: It is possible that perception of speech in noise is associated with top-down processing of speech, tapped as phonemic restoration of interrupted speech. More research with a larger sample size is indicated since the restoration is affected by the type of speech material and noise used, age, working memory, and linguistic proficiency, and has a large individual variability.

• 시큐리티연구
• /
• 제6호
• /
• pp.291-326
• /
• 2003

The first, Improvement of education training condition Education training is influenced by facilities, environment around. according to questionnaire, it is very poor, we should set up a training institute as soon as possible. The second, Improvement of education training contents In working as special guard, they do not feel the need of curriculums like bayonet fencing, criminal law, and so on. accordingly we should adjust the contents of educaton training. The third, Improvement of education training course People were satisfied with the contents of lectures and educator more than half to some degree, but there was a question of time, communication, contents. we should try to remedy things like this. The fourth, Adjustment of education training time The 60% people of all were not satisfied with the time of education training about new duty. we need to intensify and oversee a duty training and the restructure of training time. The fifth, Fairness of valuation reward and punishment in education training The 80% people of all had the bad feeling against reward and punishment, so we tried to let fairness of valuation, reward and punishment completed by educational institution. The sixth, Establishment of the institution for special guard special guard have to be raised by special institution, but lacking of educational program, educational facility, educational Environment, university took the place of government as institution in raising special guard, education still leave much to be desired. so to develop the industry of a civil security, government or a guard association will set up the school of training, education, system about civil security as a whole. The seventh, Improvement of education training form People have to be taught for 80 hours in education training. according to questionnaire, over 75%people wanted to lodge at education accommodation, so in doing education training, we need to improve a system and form. The eighth, Operation of education training suitable for a characteristic in jobs In the education of 80 hours, common courses will need to be carried out together, depending on class, the object of national facility, inspection and practice will need to be done. maybe this can be the improvement of growing up education training. In the result of the study, we need to build up the satisfaction of education training through a lot of opinion like program, system, circumstances. Keep in mind that the paper was a few of problems because of the limit of the survey of 132 peoples, accordingly we try to collect a survey related with this around country. especially this will need to be asked for harmony between the law and the background of system. in the future, to develop the special guard service, increase the demand of this service, have to raised the expert and the special guard service has to enlarge.

• 디지털융복합연구
• /
• 제16권2호
• /
• pp.471-477
• /
• 2018

이 연구는 스쿼시심판이 경험하는 판정어려움을 Giorgi의 현상학적 분석방법을 통해 심판이 처해 있는 상황과 판정 결정의 어려움에 대한 근원을 규명하고자 하는 데 그 목적이 있다. 이러한 목적을 달성하기 위하여, 경력 10년 이상의 스쿼시 전문가 중 2016년 대한스쿼시연맹에 등록되어 있는 2급 이상의 자격을 보유한 심판 5명을 연구 참여자로 선정하였으며, 참여관찰 및 비구조적 반구조적 심층 면담을 병행하여 수집한 자료는 Giorgi의 현상학적 분석방법 4단계에 따라 '개인적 상황에서 오는 어려움', '사회적 상황에서 오는 어려움', '환경적 상황에서 오는 어려움'으로 구성요소로 통합하였다. 스쿼시심판의 판정에 대한 어려움들은 '외화내빈(外華內貧)'의 의미로 함축시킬 수 있으며, 이는 심판들에게 공정하고 객관화된 판정을 기대하기 위해 판정주체자인 심판들의 처우개선과 심판들의 지속화, 전문화의 필요성을 강조하고 있다.

• 분석과학
• /
• 제27권5호
• /
• pp.243-247
• /
• 2014

포름알데히드는 대표적인 직업성 발암물질로, 고농도에 노출되면 사람에게 백혈병이나 임파종, 비인두암 등을 일으킬 수 있다. 본 연구는 포름알데히드의 직업적 노출이 높은 가구목제 제조업 중 1 개 사업장을 대상으로 공정별 공기 중 포름알데히드 농도를 평가하고, 공기 중 포름알데히드 농도가 가장 높은 무늬목 부착 공정에서 사용되는 재료의 실험실내 포름알데히드 발생 및 분석을 통하여 가구 제조 사업장의 포름알데히드의 발생 현황을 파악하고자 하였다. 2,4-디니트로페닐히드라진 코팅 실리카겔 흡착관에 0.2 L/min의 유량으로 6 시간동안 공기 시료를 포집하고 아세토니트릴로 탈착하여 HPLC-UV로 분석하였다. UV 검출 파장은 360 nm였고, ACQUITY UPLC BEH $C_{18}$ ($100{\times}2.1mm$, $1.7{\mu}m$, Waters, U.S.A.) 컬럼과 45% 아세토니트릴 이동상을 사용하여 유속을 0.5 mL/min으로 설정하여 분석하였다. 가구 제조 사업장의 포름알데히드 최고 농도는 0.31 ppm으로, 미국 ACGIH의 천장값 농도 기준인 0.3 ppm을 초과하였다. 재단, 조립, 샌딩 등의 공정에서도 포름알데히드 농도는 공장 외부의 농도보다 7-21 배 높은 수준이었다. 무늬목 부착 공정에서 목재로부터 발생하는 포름알데히드는 사업장 실제 적용 온도인 $100-150^{\circ}C$에서 1.14-2.70 ppm으로, 국내 노출기준인 0.5 ppm에 비해 2-5 배 이상 높아, 습식 무늬목을 취급하는 사업장 및 공정 근로자는 포름알데히드에 노출될 가능성이 높은 노출 위험군임을 확인하였다.