• Journal of Plant Biotechnology
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• 제8권1호
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• pp.21-25
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• 2006

Phragmites australis (reed) has received much attention as being one of the principle emergent aquatic plants for treating industrial and civil wastewater. Plant regeneration via plant tissue culture in p. australis was investigated. Three types of callus were identified from seeds on N6 medium plus 4.5 UM 2,4-dichlorophenoxyacetic acid (2,4-D). Yellow compact type showed the best redifferentiation, whereas white compact type and yellow friable were not competent to differentiate into plane. Solid medium culture was better than liquid suspension culture for enhancing callus growth when N6 medium supplemented with 4.5 ${\mu}M$ 2,4-D was used. Phytagel, as a gelling agent, was superior to agar in plant regeneration on N6 medium, supplemented with 9.4 ${\mu}M$ kinetin and 0.54 ${\mu}M$ $\alpha$-naphthaleneacetic acid (NAA). Transfer of the plantlets regenerated from kinetin and NAA-supplemented N6 medium to growth regulator-free MS medium enhanced the further development of the plantlets. Plantlets on subsequently grown to maturity when tansferred to potting soil. The regenerated plants exhibited morphologically normal. The system for plant regeneration of P. australis enables to propagate elite lines on a large scale for water purification in the ecosystem

• 디지털산업정보학회논문지
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• 제17권4호
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• pp.177-195
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• 2021

The purpose of this study is to examine the trouble of recruitment and research and development of ICT SMEs. Recently, many ICT SMEs have emerged for selling products and services using the technology of the 4th industrial revolution. However, SMEs have relatively deficient resources compared to large companies, the difficulty of maintenance or growth of human resources and intangible resources. This research methodology organized the four stages of the analysis process. The first analysis is the association rules for human resource recruitment. The second analysis is the difficulty of hiring jobs and experienced workers by each stage of company growth. The third analysis is a regression analysis of the trouble of R&D activity. The last analysis is an analysis of association rules on the difficulties of management activities by company growth. As the research result, the first analysis has shown a difference in favored human resources by the ICT industry. The second analysis also showed factor differences in job recruitment difficulties for each stage of corporate growth. In the third analysis, the operation of research institutes in ICT SMEs is influenced by industry type, corporate certification, corporate growth stage, self-technology development, joint technology development, technology transfer, and commercialization. As the last analysis, ICT SMEs showed factor differences in difficulties in management activities by stage of corporate growth. This study contributed empirically emphasizing the troubling phenomenon of human resources and R&D necessary for the growth of ICT SMEs. As a theoretical implication, this research contributed to the research-area expansion of management information using big-data technologies. In particular, this research practically suggests the differentiated direction of recruitment and R&D by ICT SMEs based on industry and each stage of company growth through the association rules of big data.

• 한국산학기술학회논문지
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• 제12권1호
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• pp.181-187
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• 2011

본 연구는 경제성장과 일자리창출문제와 관련하여 기술진보의 형태가 일자리창출에 어떠한 효과를 미치는지를 이론적으로 검토하고 실증분석을 통하여 기술진보와 일자리창출간의 관계를 분석한다. 분석결과 기술진보가 자본 절약적 이거나 요소중립적인 경우에는 기술진보가 고용을 증가시키지만 기술진보가 노동절약적인 경우에 고용증가의 정도가 상대적으로 적거나 고용이 감소할 수 있음을 확인하였다. 또한 기술진보가 고용에 미치는 효과는 생산구조상의 특징만이 아니라 노동공급함수의 구조에 의해서도 영향을 받음을 보였다. 노동공급이 임금탄력적일수록 기술진보에 대하여 일자리 증가가 더욱 커짐을 보였다. 실증분석에서는 의태모형실험을 통하여 기술진보의 형태에 따른 고용증가의 정도를 확인하고, 전체 산업 및 개별 산업별로 노동/자본 비율의 변화를 추정하여 이론적인 결과를 검증한 결과 농업 및 어업에서는 그 비율이 감소하였지만 서비스업에서는 그 비율이 증가하고 있음을 확인하여 서비스업부문에서 일자리 창출이 상대적으로 높음을 확인하였다.

• 디지털산업정보학회논문지
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• 제9권3호
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• pp.99-106
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• 2013

There has been a lot of growth more than 10% in the information security industry. In accordance with the industrial growth, it increased needs for the information security manpower development as a national problem. But there is an imbalance between demand and supply of the information security manpower in terms of the quantity and quality. It is mainly caused by the curriculum of the information security is made considering for suppliers not for demanders. As a resolution to solve this problem, we suggest the curriculum of information security for vocational education and training. As the information security area is wide in view of required knowledge and technology, we design the curriculum by selecting major occupation type from the information security manpower distribution and products and then by investigating the job description using NCS(National Competency Standard). And we compared the curriculum to that of two or three year diploma courses in Korea.

• 대한안전경영과학회지
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• 제16권4호
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• pp.379-389
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• 2014

Fire detectors are designed to minimize loss of life from a fire alarm system as an alarm to help evacuate more quickly until the completion of the evacuation alarm should be continued. the purpose of such alarms in order to achieve the characteristic fire heat release rate reaches a certain level, or when a certain time has elapsed, when the heat detector is to be alarms to answer. Requires a quick response, it is desirable to install the sensor as much as possible, but taking into account the cost of installation problems by engineering approach to minimize the quantity and rapidity of detection capability should be increased. In order to increase the rapidity of fire detectors in a room according to the height of the sensing period is to be maintained the optimum distance of the fire detector detects characteristics should be considered. Differential spot-type heat detectors installed domestic basis, depending on the type of sensor that can detect one sensor area is limited and less than 4m ceiling height regulations and simply double the number in excess of 4m and intended to be installed.

• 대한안전경영과학회지
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• 제10권3호
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• pp.155-166
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• 2008

Advanced countries worldwide lead government leading management innovation by suggesting unique managing system which can be survived in global economy war including JQA of Japan and EFQM of Europe based basically on MBNQA of U.S.A. and by rewarding to suitable companies. Mckinsey, global management and consulting company points out that Korea has no management because Korean productivity level which dependence to small and medium sized companies is high by the limitation of elemental invests leading type growth strategy including labor and capital is only 1/2 of U.S.A. and 2/3 of Japan. In particular, the competitive power of Korean small and medium sized companies goes into a recession by productivity lowering according to the chinese follow-up, laboring time shortening, variety and aging, and fundamental management innovation activities for reinforcing survival and competitive power are needed. Therefore, in this study, we try to construct the model of productivity managing system of innovation type small and medium sized companies which make excellent results.

• 대한안전경영과학회지
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• 제18권3호
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• pp.33-45
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• 2016

Construction sites have gradually become bigger and bigger according to Korea economic growth. Also use of tower crane and other heavy equipment has been increased. The increased use of heavy equipment like tower crane is leading to fatality incident. This study will verify hazards to influence tower crane incident through structural and positive verification and find which hazard influence incident risk. The result of this study is as follows. First, while there is a significant difference between safety managers and tower crane operators for working environment, safety management, personal manage among risk factors, we can not find any evidence on the difference in perception of tower crane incident risk between them. Second, task manage risk and personal manage risk has a significant positive effect on perception of tower crane incident risk. Third, while site environment risk has a significant positive moderating effect of task type between risk factors and perception of tower crane incident risk, personal environment risk has a significant negative moderating effect between them.

• 한국산학기술학회논문지
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• 제13권5호
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• pp.2054-2062
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• 2012

조직문화(organizational culture)의 조직성과에 대한 유효성은 지난 수십 년간 많은 연구들에서 지지되어 왔다. 우수기업들에서 공통적으로 나타나는 문화적 특성들이 존재한다는 사실을 확인한 Peters & Waterman의 연구 이후, 동서양을 막론하고 수많은 연구들에서 조직문화는 조직의 효과성에 기여하는 것으로 실증되고 있다. 조직문화는 조직 구성원의 만족이나 몰입 등의 개인 수준의 조직유효성과 밀접한 관련성을 가지고 있으며, 개인성과뿐만 아니라 조직 수준의 주관적 성과 및 재무적 성과에도 기여를 하는 것으로 나타났다. 이와 같이, 조직문화는 조직의 성과에 기여하는 가치 있는 자원일 뿐만 아니라 희소하며, 다른 조직이 모방하기 어렵기 때문에 조직의 지속적인 경쟁우위의 원천으로 간주되고 있다. 따라서 본 연구에서는 이러한 조직문화 중 문화의 특성, 강도 및 조직문화의 내적 일관성의 상호작용 효과에 대한 이론적 명제를 제시하고 향후 실증연구를 위한 토대를 제시하였다.

• 식품과학과 산업
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• 제55권2호
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• pp.140-153
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• 2022

The purpose of this study is to organize research trends by analyzing healing studies using emotional insects, and to suggest future research directions. As a result, only six emotional insect species were used for healing purposes, and most of the age groups of the test subjects were elementary school students and the elderly. As for the type of research, field application of the healing program was dominant at 76.5%. Effectiveness verification was mainly conducted through questionnaires before and after participating in the healing program. In some cases, stress-related salivary hormones were used as indicators or clinical tests were conducted by medical staff. Based on the results of this analysis, future strategies such as finding new emotional insect species, developing various types of healing program models, and expanding and subdividing the target subjects were suggested to promote the growth of the healing industry using emotional insects in the future.

• 한국인터넷방송통신학회논문지
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• 제18권4호
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• pp.131-142
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• 2018

한국에서 지난 50여년간 산업단지는 국가주력산업의 집적지로 경제성장에 있어 중요한 역할을 담당하였으나 이러한 노후산업단지가 가지고 있는 다양한 문제점으로 인하여 경쟁력 약화 요인으로 작용하고 있다 산업단지 유형 특성별 발전계획, 관리계획, 지원계획 등으로 구분하여 융복합 첨단산업단지로의 관리 육성을 위한 모델로 전환될 필요가 있다 이를 위하여 IoT를 기반으로 하는 클라우드 컴퓨팅, RFID, WSN, CPS, 빅데이터 분석 등의 신기술을 활용한 CIPs(Connected-Industrial parks)를 제안한다 이것은 각 CIP가 연결되어 확장된 개념으로서 물리적 자산을 소유, 운용하면서 운송, 창고, 제조 영역에서 다양한 서비스를 지원하는 허브라고 할 수 있다 이러한 CIPs를 통해서 네트워크형 협업 제조가 가능하고 지능형 물류 혁신으로 원가 절감, 납기단축, 품질향상 등을 달성하여 국가경쟁력의 혁신을 이룰 수 있을 것이다.