• Journal of The Korean Association For Science Education
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• v.38 no.6
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• pp.781-792
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• 2018

In modern society, as technology develops and industry diversifies, students can choose from a variety of career paths. Since science, technology, engineering, and mathematics require a longer education and experience than other fields, it is important to design science education policies based on the competencies required for science, technology, engineering, and mathematics (STEM) occupations. This study explores the definition of science and technology manpower and STEM occupations and identifies core competencies of STEM occupations using standard job information operated and maintained by the US Department of Labor ($O^*NET$). We specially analyzed ratings of the importance of skills (35 ratings), knowledge (33 ratings), and work activities (41 ratings) conducting descriptive analysis and principal component analysis (PCA). As a result, core competencies of STEM occupations consist of STEM problem-solving competency, Management competency, Technical competency, Social service competency, Teaching competency, Design competency, Bio-chemistry competency, and Public service competency, which accounts for 70% of the total variance. This study can be a reference for setting the curriculum and educational goals in secondary and college education by showing the diversity of science and technology occupations and the competencies required for STEM occupations.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.43 no.7 s.349
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• pp.1-13
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• 2006

In this paper, we introduce a novel key management scheme that is based on the key pre-distribution but provides the key re-distribution method, in order to manage keys for message encryption and authentication of lower-layer sensor nodes on hierarchical mobile sensor networks. The characteristics of our key management are as follows: First, the role of key management is distributed to aggregator nodes as well as a sink node, to overcome the weakness of centralized management. Second, a sink node generates keys using regression model, thus it stores only the information for calculating the keys using the key information received from nodes, but does not store the relationship between a node and a key, and the keys themselves. As the disadvantage of existing key pre-distributions, they do not support the key re-distribution after the deployment of nodes, and it is hard to extend the key information in the case that sensor nodes in the network enlarge. Thirdly, our mechanism provides the resilience to node capture(${\lambda}$-security), also provided by the existing key pre-distributions, and fourth offers the key freshness through key re-distribution, key distribution to mobile nodes, and scalability to make up for the weak points in the existing key pre-distributions. Fifth, our mechanism does not fix the relationship between a node and a key, thus supports the anonymity and untraceability of mobile nodes. Lastly, we compare ours with existing mechanisms, and verify our performance through the overhead analysis of communication, computation, and memory.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.9
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• pp.329-339
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• 2016

The purpose of this study was to investigate the level of job stress and organizational commitment, as well as to identify the factors that influence patient safety management activities among the operating room nurses. Participants were 136 nurses working at 1 university hospital and 9 general hospitals located in G metropolitan city. The data were collected between July 25 and August 7, 2014 using structured questionnaires. Data were analyzed by descriptive statistics, t-test, one-way ANOVA, Pearson's correlation, and multiple regression analysis using SPSS version 21.0. The level of job stress, organizational commitment, and patient safety management activities was 3.76, 3.09, and 4.15, respectively, out of a 5-point scale. Patient safety management activities were significantly correlated with organizational commitment. The significant factors that influence patient safety management activities were organizational commitment and number of patient safety education, which explained 23% of patient safety management activities. In conclusion, organizational commitment and patient safety education have a positive effect on the improvement of patient safety management activities of operating room nurses. It is necessary to develop various intervention programs for operating room nurses to improve organizational commitment and should be reinforced via continuous, systematic patient safety education on patient safety management.

• Journal of Korean Medical classics
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• v.19 no.4
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• pp.27-61
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• 2006

수당오대적대근의학발전유소적정책(隨唐五代적代근의學발展有소的政策), 기구(기구), 제도등축점완비료(制度等逐漸完비了). 저시기유정부발전의학교육적정책치득의정적공적(저時期由政府발展의學교育的政策値得의政的功적). 정규의학교육적방면상몰치전과의(定規의學교育的方面上몰置전科의), 안배교육과정(安排교育과程), 임용고시등구비구비료의학교적규모(任用考시等具비具비了의學교的規模), 영외발전료지방의학교육화의학보급(영外발展了地方의學보育和의學普及). 방포의방화지방요로상다착처방적조시백성의료제공방변(방布의方和地方要路上다着처方的조百姓의료提供方便), 야영향료의학화신적보급(也影향了의學和신的普及). 저시기의정상최현저적성과시제고본초학적지위적(저時期의政上最현著的成果是提高本草學的地位的). 태의서내설치료의학교육동시설치료전문약학교육(太의署內設置了의學교育同時설置了전문葯學교育). 이차정부이편수본초학적병반포전국위최초적약전(而且政府以編수本草學籍幷반布全국위最初的葯典). 저시기유정부법제화료의약관리방면적야시대대수획(저時期由政府法制化了의葯管理方面的也是大大收획). 수당이전몰형성의약관리화유소제도(隨唐以前沒形成의葯管理和有소制度), 규모(規模). 의생근거일정적법률근환자관계병엄가구관자기(의生根据一定的法律근患者관系幷엄可拘管自己). 수당오대의정흔다방면상탁유성효(隨唐五代의政흔多方面上卓有成效), 단시궁정의약기구적규모흔방대(但是宮廷의葯기구的規模흔방大), 인원과잉(人員과剩), 역궁정의관수공제(亦宮廷의官受控制), 불능발휘자기적능력(不能발揮自己的能力). 야불능발전위백성적의약기구(也不能발展위百姓的의葯기구). 인위정부불태중시의학(因위政府不太重시의學), 소이의생적지위잉시불고(所以의生的地位仍是不高). 나취시저시기의정적결점(那就是저시期의政的缺点).

• The Journal of the Korea Contents Association
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• v.9 no.8
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• pp.41-48
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• 2009

As enactment and enforcement of capital markets integration law, investment banks are going to be appeared in our financial market and be able to provide payment services. To provide these kinds of services, investment banks need to be participated in the financial network. As the financial network enormously affect the economy, the operation of the network will require a variety of risk managements. In this paper we define operational risk management criteria for the financial network such as security, in-time response, economical efficiency and stability to be required for the healthy economy and propose the configuration of the financial network system based on virtual private networks for investment banks to provide payment services. Finally we analyze that the proposed VPN configuration for financial networks has high security and in-time response with the cost and operation effective.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.378-382
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• 2009

The purpose of this study is to design and develop competency based career development system for mid size IT company employees to support HRD(Human Resource Development) & HRM (Human Resource Menagement). Although many researches have been done in terms of employees career and competency development in corporate environment, there are not many cases to analyze mid size companies because small companies have limited number of employees and budget to develop career development system. This study analyzed 55 subjects to analyze their current competency level and job description in two mid size IT companies to design and develop competency based career development system. Three career paths such as R&D, management, and marketing, were common in IT companies and each suitable career development plan was recommended. The results of this study are able to provide self diagnostic competency based career development system for mid size company employees to improve their job performance and administration efficiency as a consequence.

• Food Science and Preservation
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• v.15 no.2
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• pp.219-224
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• 2008

"Charmdlerak" a new high-quality Korean wheat, was produced with production management from the Rural Development Administration (RDA). We evaluated the characteristics of grain, flour, and end-use quality of "Charmdlerak" wheat to assess consumer satisfaction with this new variety of wheat. Eighty-two farmers (450MT/100 ha) in Gwangju metropolitan city produced Keumkangmil wheat and 23 farmers (30 ha) produced "Charmdlerak" wheat "Charmdlerak" wheat had 1.55% ash content and 11.0-13.0% protein content "Charmdlerak" flour was milled by a commercial machine in Samyang Milmax. The protein content of "Charmdlerak" was slightly higher than that of flour from Hard Red Winter Wheat (HRWW), the most popular multipurpose flour in Korea. The ash content and color of "Charmdlerak" wheat were similar to those of HRWW. End-use quality testing of cooked noodles and bread indicated that "Charmdlerak" flour resulted in softer noodles and similar bread loaf volume compared with products made from Keumkangmil wheat.

• Journal of the Korean Association of Geographic Information Studies
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• v.11 no.3
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• pp.107-117
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• 2008

Numerous debates and efforts have been made to utilize land resources more effectively especially for the state-owned land in an urban area. Currently most of small size state-owned lands within urban areas are not used effectively due to the limitations in physical conditions and profitability. Some of these properties are occupied illegally and being used for various private purposes. Considering the shortage of land supply in urban areas, there need to be some improvements in the utilization and management of public land. The purpose of this study, therefore, is to identify and evaluate the location, current uses, physical conditions, and development potential of small size public properties in Seoul area. Data analysis was conducted by using GIS. The results of the study indicate that it is possible to utilize small size state-owned lands within an urban area more rationally and systematically by evaluating the characteristics of neighborhood and the site.

• Journal of Korean Society for Geospatial Information Science
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• v.18 no.1
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• pp.129-134
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• 2010

Low-carbon Green Growth is highlighted as the main political issue from in and outof Korea. Recently Korean government announced the vision for low-carbon green growth. Considering this as a starting point the carbon emission estimation has become an important factor in the city planning. In order to realize the carbon reduction planning, this research was focused on the trend analyzes between the carbon exhaust estimation as well as the land use change for the past 40 years in Jinju. The image processing data of past aerial photography and the land suitability assessment databases were used to collect the useful information's for the land trend analysis for 40 years. As the results, the land use changes by new residential developments have led to increase the carbon emissions and population concentration rapidly. The urban management planning for low carbon and green growth should consider carbon emissions by population growth derived from land use change. Further research need to estimate the accurate carbon exhaust using relationship model with fuel consumption, carbon estimation, and land use.

• Journal of Korea Water Resources Association
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• v.40 no.1 s.174
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• pp.63-72
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• 2007

The main purpose of this study is that financial resources allocation criteria are examined closely between central government and local government as well as among local government in a river basin. Financial resources allocation principles reflecting water use, flood control, and water quality improvement are reviewed and derived two categories such as common factors and individual factors. The weights of each factor are assigned by analytical hierarchy process. The results of applying four river basins (Han river, Geum river, Nakdong river, Yeongsan-seumjin river) show that rational raising of financial resources are different according to the characteristics of each river basin. Findings are as follows: In case of Han river and Yeongsan Seumjin river, benefit principle and polluter pay principle by individual factors are more attractive than other Principles. Solvency principle by common factor is more acceptable than the other principles in Nakdong-river and Geum-river.