• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.39B no.6
• /
• pp.360-369
• /
• 2014

Underwater Acoustic Sensor Networks(UASN) enables varied study from collected data of underwater environments such as pollution monitoring, disaster prevention. The collected data is transmitted from underwater to terrestrial communication entity by acoustic communication. Because of the constraints of underwater environments include low data rate and propagation delay, it is difficult to apply cryptographic techniques of terrestrial wireless communication to UASN. For this reason, if the cryptographic techniques are excluded, then collected data will be exposed to security threats, such as extortion and forgery, during transmission of data. So, the cryptographic techniques, such as the authentication and key establishment protocol which can confirm reliability of communication entities and help them share secret key for encryption of data, must need for protecting transmitted data against security threats. Thus, in this paper, we propose the light weight authentication and key establishment protocol.

• Journal of Korean Society of Rural Planning
• /
• v.23 no.4
• /
• pp.91-98
• /
• 2017

The purpose of this study is to analyze the actual condition of the already established rural theme park, draw the weak and strong points, and come up with an efficient performance plan for Changwon Persimmon Theme Park through the benchmarking of the best overseas case. According to the analysis, it is necessary to introduce a facility and a program for family customers as a plan for promoting Changwon Persimmon Theme Park. It is required to secure safety through public operation and management, improve scalability of the facility through the establishment of multi-functional complex facility, and come up with a plan for operating a special program associated with local resources. Therefore, this study drew three activation factors: the establishment of operation and management system, the development of operation contents by facility, and the establishment of operation in each area. First, to establish the operation and management system, it is necessary to classify the organization of the theme park into the operation business area and into operation & management area by job function. Secondly, it is necessary to establish a special program in consideration of space and facility, suggest a differentiated plan for operation contents, and create a facility operation plan and program for Changwon Persimmon Theme Park. Lastly, to operate and manage Changwon Persimmon Theme Park smoothly, it is necessary to set the theme park space as open collaboration space which the local residents can share and participate in by avoiding the conventional administration-based business performance and operation. This study suggested the plan for establishing an operation and management system for Changwon Persimmon Theme Park and its operation, the establishment of a special program, a business performance strategy, and the use of internal and external spaces of the theme park.

• Korean Medical Education Review
• /
• v.24 no.3
• /
• pp.250-260
• /
• 2022

Evaluating the effectiveness of educational programs involves measuring learning processes as well as outcomes. It is essential to study cohorts of students and graduates to evaluate the long-term effects of educational programs with data generated both during education and after graduation. The purpose of this study was to establish cohorts of students and graduates to evaluate their performance, thereby providing a basis for evaluating the social accountability of medical education. In this study, student and graduate cohorts were built for both students currently enrolled and graduates at Inje University College of Medicine (IUCM). A model involving the process of cohort establishment and an evaluation indicator framework was developed. In the process of cohort establishment, the following steps were conducted: defining the goals and objectives of the student and graduate cohorts, organizing a cohort committee, developing regulations, registering cohorts, acquiring consent, and building a database. A framework of evaluation indicators according to the graduate roles of IUCM was developed by adapting Kirkpatrick's evaluation model. Next, items to be collected in student and graduate cohorts were selected, and the current status of existing data was analyzed. Moreover, a preliminary analysis was conducted, including analyses of the evaluation indicators and graduates' performance. This study suggests that it is necessary to include additional evaluation indicators considering students' learning environment and well-being in student cohorts and to develop strategies or methods for graduates to continue participating in data collection for a long-term study.

• Nuclear Engineering and Technology
• /
• v.53 no.12
• /
• pp.4114-4121
• /
• 2021

The Rooppur Nuclear Power Plant (RNPP), the first nuclear power plant in Bangladesh with a capacity of 2.4 GWe, is under construction on the bank of the river Padma, at Rooppur in Bangladesh. Measurement of background radioactivity in the natural environment adjacent to RNPP finds great importance for future perspectives. Soil and sediment samples collected from upstream and downstream positions of the Padma River (adjacent to RNPP) were collected and analyzed by HPGe gamma-ray spectrometry for primordial radionuclides. The average activity concentrations (in Bqkg^-1) of ²²⁶Ra, ²³²Th and ⁴⁰K radionuclides in soil samples were found to be 44.99 ± 3.89, 66.28 ± 6.55 and 553 ± 82.17 respectively. Respective values in sediment samples were found to be 44.59 ± 4.58, 67.64 ± 7.93, 782 ± 108. Relevant radiation hazard indices and dosimetric parameters were calculated and compared with the world average data recommended by US-EPA. Analytical results show non-negligible radiation hazards to the surrounding populace. Measured data will be useful to monitor any change of background radioactivity in the surrounding environment of RNPP following its operation for the generation of nuclear energy.

• Journal of Korean Library and Information Science Society
• /
• v.44 no.3
• /
• pp.335-358
• /
• 2013

School library is the place of educational meeting and cultural communication. School Libraries Promotion Act legislated in 2007 bring about library law's unity absence, the subject of works, arrangement standard of professional personnel, establishment of contents and scope, and matter of qualification and so on. This study investigated the process established of School Libraries Promotion Act, a proposal bill, a purpose bill, and the main contents. As a result it is to propose revision of bill after analysis of the question enacted School Libraries Promotion Act.

• International Journal of Costume and Fashion
• /
• v.15 no.2
• /
• pp.63-77
• /
• 2015

By means of statistical analysis and module concept, this paper investigated the current situation of high school girl's uniform and put forward its improved design and database establishment. Combined with the survey data, the future design direction and trend of the high school girls' uniform were proposed. By using modular design concept, the uniform is divided into five modules, and a style database has been built. Meanwhile, the parametric pattern database has been completed by using garment CAD system, based on the style database above, which has 42,336 possibilities to assemble a pair of school uniform. Combining with digital sewing techniques and by using computerized embroidery machine, the personalized design of high school girl's summer uniform has been realized. And two simulated case have been given for examples to prove its feasibility. The idea of modular design and parametric design method proposed in this study offer references for establishing the modular design database and parametric pattern database for other types of school uniform and are of relatively high practical and theoretical value.

• Journal of the Korean Society for Library and Information Science
• /
• v.39 no.2
• /
• pp.259-286
• /
• 2005

The purpose of this paper is to investigate leaderships for development of school library in Korea at the present developmental state. The writer discusses three kinds of leadership : field leadership, administrative leadership, and academic leadership. Each leaderships, for continuous and stable development of school library In Korea, are needed to be enhanced. Especially, establishment of the academic leadership is indispensible to initiate the development of school library in Korea.

• The Korean Journal of Health Service Management
• /
• v.6 no.3
• /
• pp.67-74
• /
• 2012

This study analyzed the trend of relationship between hospital departments. Hospitals directory issued by Korean Hospital Association in 2009 was used to collect the study sample data. The study sample used 188 hospitals established during the four years from 2005 to 2008, and bed size, establishment year was identified in the directory. Population variable in 2009 was taken from the website of Statistics Korea. SAS 9.2 was used for the statistical analysis. In regression analysis, year of establishment (2008) was statistically significant in explaining the number of hospital departments. Hospitals established in 2008 showed significant positive number of department than other years. Study hospitals showed increasing number of hospital departments during four years. Further study will be needed to analyze the effects of hospital departments on their performances.

• Journal of architectural history
• /
• v.24 no.2
• /
• pp.17-26
• /
• 2015

The aim of this study is to investigate the conversion of Dongnaebu Gaeksa block to public market during Japan's Colonial Period. The block of Gaeksa was converted into the elementary school for the first time and afterwards occupied by the public market. Dongnae Traditional Market(五日場) had kept up since late 18th century. Dongnae public market was transferred to the site of Dongnaebu Gaeksa in 1937. Especially Dongnae public market(東萊公設市場) in the construction cost of establishment was supplied on loan. A number of traditional markets were reformed into the public markets in the 1930s. and the public market was installed more by the organization of colonial period. Dongnae public market was one of those markets, too. Eventually the establishment of public market meant that the block of Gaeksa had disappeared completely.

• KDI Journal of Economic Policy
• /
• v.37 no.4
• /
• pp.55-74
• /
• 2015

Using the Census on Establishments collected by Statistics Korea, we analyze how the patterns of job creation and destruction differ across counties (si-gun-gu). We measure aggregate employment changes due to establishment startups, expansions, contractions, and shutdowns for each county and quantify the role of such reallocations in explaining variation in employment growth across counties. Overall we find that both rates of net entry and job creation play an important role in explaining differences in net job creation rates across regions. Moreover, counties with high employment growth rates also tend to have high exit and job destruction rates, which suggests that an active process of job reallocation is a key source of regional employment growth.