• Korean journal of applied entomology
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• 제33권2호
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• pp.66-73
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• 1994

Adult emergence period, the calling behavior pattern and the mating ability of female depending on ages, 9day old male's response to sex pheromone released from each 1- to 5-day old female, and the structure and location of sex pheromone gland were obse~edin Ostrinia furnacalis. Adults usually emerged from 1 hour before to 1-2 hours after the beg~nning of scatophase under the 16L/8D photoperiod. And most active calling behavior was obserued for two hours from the 5th to 7th hours of scotophase among 2- and 3-day old females, and 3-day old male' response to 3-day old females was higher than to any other age of females during the 5th-8th hours of scotophase. Mating frequency was higher at the 4th-7th hours after the beginning of scotophase. Among 1. to Cday old females extruding sex pheromone gland, more than 65% of them successfully mated with 2- to 4-day old males. And, 2- or 3-day old females exhuding sex pheromone gland showed an abdiw. over 60%, to mate with each 1--5-day old males. Hypertrophied cell layers, presumed to be a sex pheromone gland of female adults, were located at two intersegmental membranes between the 8th & 9th, and the 9th & 10th abdominal segments.

• Food Science and Industry
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• 제52권2호
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• pp.153-170
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• 2019

With the breathtaking stride beingmade in the field of biotechnology, biocatalyst research using genetically modified microorganism (GMM) is actively being pursued in food industry. However, domestic food and food additive regulation standards and the number of examination management examples currently used in industry is lacking significantly. Up till now, there are only 6 examples of domestic GMM examination and approval cases for food production purposes and furthermore they are limited to the production of functional sweeteners. Domestically, although GMM is developed as a processing aid (contained use), if they are used in the production of food, the safety of GMM, including environmental safety, is evaluated. Also the produced food or food additives using GMM need to be separately examined and approved as a novel food. On the other hand, imported products produced using GMM need to gain approval for the final product only. Thus the expense and the time to obtain regulatory approval is advantageous for imported products versus domestically produced products. This commentary is written to create the opportunity to reform the current domestic food GMM regulation by comparing and discussing domestic and foreign case analyses of safety evaluation of GMM and related regulations.

• Journal of the Korean GEO-environmental Society
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• 제12권7호
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• pp.49-56
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• 2011

Recently, the ground injection method using water glass as one of the components of the main resources and the products of the construction has some basic problems for permanent reinforcement of foundation and stopping leakage of water because it has some serious problems such as durability reduction, compression strength reduction and eluviation. This study was to evaluate the environmental impact and durability of the developed friendliness of Natural and Durable Stabilizer(NDS) of inorganic injection and Space Grouting Roket(SGR) with typical water glass type material. Two materials, NDS and SGR, were compared with each other by unconfined compressive strength test, fish poison test, durability test and triaxial permeability test. The results of the durability test indicated that the 28-day strength of the NDS was 1.5 times higher than that of the SGR. The fish poison test proved that the survival rate in the SGR and NDS is 50~70%, and 100%, respectively. Therefore, the NDS has higher survival rate than that of the existing SGR. The NDS will be considered by an environmentally friendly product and moreover it has a few problems for soil and groundwater pollution.

• 월간 기계설비
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• 7호통권192호
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• pp.39-43
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• 2006

건설산업 선진화를 위한 건설생산체계 개선 공청회가 지난 6월 30일 국토연구원 강당에서 개최되었다. 국토연구원이 주최하고 대한건설협회, 대한설비건설협회, 대한전문건설협회가 후원한 이번 공청회는 향후 건설산업기본법의 개정(안)과 건설산업관련 제도개선에 활용 방안을 도출하기 위하여 마련된 것으로 김재영 국토연구원 선임연구위원이 주제발표를, 김수삼 한양대학교 대외협력부총장이 토론회 진행을 했으며, 최기원 삼건설비(주) 대표이사를 비롯하여 손태락 건설교통부 건설경제팀장, 김명수 가톨릭대학교 경제학과 교수, 유주현 (주)신한건설 대표, 이교선 한국건설기술연구원 수석연구위원, 이상호 한국건설산업연구원 건설정책연구실장, 천길주 현대건설(주) 상무, 황한석 (주)삼중엔지니어링 대표 등이 토론자로 참석하여 열띤 토론을 벌였다. 이날 토론회에서 대한설비건설협회 측 토론자로 나선 삼건설비(주) 최기원 대표는“겸업제한 폐지 등 기존 건설산업기본법의 틀을 근본적으로 바꾸는 것보다 현행법 내에서 제도개선 방안을 강구하는 것이 바람직하나, 정부방침에 의거 겸업제한제도를 폐지할 경우 상대적으로 약자인 설비건설업계를 위한 발주제도를 개선하는 방안 강구가 필요하다”고 강조했다. 최기원 대표는 또“기계설비공사의 경우 상호 실적을 인정해서는 안될 것이며, 실적인정과 관련한 혼선을 최소화하고 문제점 발생시 보완 및 조정을 위한 한시적 조정위원회 설치”를 제안했다. 이와 함께 건설공사 발주방식의 다양성 확보에 대한 의견으로 발주할 때 일반건설업자로 제한해서는 안되며, 다양한 공종과 업종의 건설공사는 통상적으로 전문분야 또는 업종에 따라서 분리발주를 의무화해야 한다고 강조했다. 이날 공청회에서 대한설비건설협회는 플로어 발언을 통해‘설비공사 분리발주를 원칙으로 하고 분리발주가 안될 경우 설비∙전문간의 공동도급으로 원도급시장 참여를 법적으로 보장할 것과 시공관리형 CM업을 신설하여 줄 것’을 건의했다. 건설교통부는 이날 공청회에서 논의된 방안을 중심으로 의견수렴을 거쳐 오는 12월 정기국회서 건설산업기본법을 개정하고 2007년 3월 시행령 등 정비안을 마련할 계획이다. 건교부는 또한 정비안을 바탕으로 다시 업계의 의견을 듣고 내년 상반기중 시행령 및 규칙 등을 개정한 뒤 5~6개월 유예기간을 거쳐 이르면 2008년부터 생산체계 개선방안을 시행한다는 방침이다. 본지는 이날 발표된 건설생산체계 개선방안과 대한설비건설협회의 의견을 게재한다.

• Geophysics and Geophysical Exploration
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• 제6권1호
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• pp.1-6
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• 2003

As a consequence of geophysical surveys for large-scale constructions and ground investigations, huge amount of geophysical data are collected. However, due to the lack of the systematic management of such data, most of them are used temporarily and kept in dead storage, which in turn leads the abuse of social properties. To propose the solution of this kind of problem, geophysical data are kept in database using geographical information system (GIS). The introduction of GIS in geophysical data management allows the efficiency in data management and user-friendliness in data access. This data management system is especially appropriate for the many geological companies and the government organizations in systematic data management and sharing so that the time ,md financial expenses are greatly reduced. This system even provides the basic data services for the efficient development and conservation of the surface and underground spaces.

• Journal of Labour Economics
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• 제24권2호
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• pp.125-162
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• 2001

According to the survey results on non-standard employment, most of the non-standard workers are women and work at service jobs and some jobs that do not require firm-specific skill. Also wages of non-standard workers appear to be lower than those of standard workers by 10~19%. Non-standard workers are very much likely to be excluded from beneficiaries of economic growth because job contents and ability are not important relatively as criteria in determining their basic wage and their benefits are also much lower in severance pay and bonuses, vacations, 4 social insurances, education and training opportunities. Because of very low rate of union membership, the working conditions of non-standard workers are not expected to be improvable easily by unions. It seems that the reason of the demand increase for non-standard workers is mainly because not only an individual establishment demands quantitative flexibility in employment, but also there are tendencies of being smaller in establishment size and of growing service industries macro-economically. The number of non-standard workers are expected to increase continuously in the future, too.

• Microbiology and Biotechnology Letters
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• 제15권6호
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• pp.436-440
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• 1987

Pullulanase gene (pul) of Klebsiella pneumoniae NFB-320 which was cloned previously in Escherichia coli with plasmid pBR322. The gene was analyzed with various restriction enzymes. The cloned gene was contained within n 10 kb BamHI DNA fragment. We constructed the restriction map of the hybrid plasmid pYKL451. The optimum temperatures for pullulanases produced in E. coli (pYKL451) and K. pneumoniae NFB-320 were almost the same, 50-55 $^{\circ}C$. The optimum pHs for the reaction of the enzymes produced by E. coli (pYKL451) and K. pneumoniae NFB-320 was 6.0. Both enzyme preparations were stable under the range of pH 5.0 to 10.0 when those were kept at 40 $^{\circ}C$ for 90 min and were stable until 40 $^{\circ}C$ when allowed to stand for 1hr at various temperatures.

• KSCE Journal of Civil and Environmental Engineering Research
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• 제40권2호
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• pp.247-255
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• 2020

Currently, urban regeneration is carried out mostly in a permanent and fixed way of planning, and due to the nature of the master plan, it is limited to immediately accepting the opinions of residents. In this study, the factors of idle space were derived based on a temporary use strategy, and the direction of idle space was presented by comparing the importance of experts with the survey of residents' perceptions and preferences. As a result, residents preferred to improve the aging physical environment first because of the target location characteristics, while experts ranked it in line to reflect the importance of the use of temporary uses that can quickly improve the urban environment. Therefore, it is desirable to recognize the importance of the temporary use strategy and to refine the priorities of the two groups and conduct a temporary test to derive the optimal utilization measures and reflect them in the master plan. In order to implement a temporary use strategy in the future, it is necessary to present a space utilization plan that reflects detailed prior investigation through analysis of target location characteristics and usage patterns.

• Convergence Security Journal
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• 제20권3호
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• pp.99-108
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• 2020

The COVID-19 pandemic have been spreading continuously across the world, hence it is difficult to expect coming to an end in a short period of time. The use of digital technology has shown tangible results in suppressing COVID-19, but raised privacy and data-protection concerns. In the context of the global efforts to deal with the coronavirus pandemic, various digital technologies are taking on a role in surveillance, monitoring, and forecasting. Also the Korea government manages Corona crisis based on legal basis. In this paper, Korea and each country's response to the Corona 19 pandemic are shown, and suggests ways to protect personal information while using digital tools. Large-scale data collection and processing is essential for the suppression of pandemic, but it should be limited to the level and scope required privacy. Also international cooperation, temporary and transparent use of personal information, the corresponding legal basis are necessary. As the use of data and algorithms is expected to continue to increase, technical and institutional efforts to reinforce privacy protection must continue.

• The Transactions of the Korea Information Processing Society
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• 제7권5S호
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• pp.1726-1735
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• 2000

Internet purchase is increasing according to the activation of Electronic Commerce. Currently, the hardware is main purchase items in the Electronic commerce. The on-line purchase of digital product, that is electronic file type of product, has many merits such as, does not cost in logistics, is ease of searching the product, and is possible of 'Try and Buy' system. But, actually digital products have not been major proudct because of tits piracy problem. The piracy problem of digital products comes from the lack of safety in DP license control technology. Current EC has no method to identify the object that has the right ot use the digital product. The protecting of object change is impossible and the protection of hacking is not enough and EC has any problems in efficient license control because of the incompletion of EC structure. In this paper, e propose the design and implementation of on-line DP circulation system, which can activate on-line circulation of DP in EC and protect its piracy, by using the new license control technology, that is Dynamic License control technology.