• Korean Journal of Head & Neck Oncology
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• v.16 no.2
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• pp.201-205
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• 2000

Objectives: Despite of high prevalence of tuberculosis in Korea, thyroid tuberculosis is very rare and only a few records are available. This study was carried out to evaluate the clinicopathologic characteristics of thyroid tuberculosis and to find out optimal therapeutic strategies for these lesions. Materials & Methods: From Jan. 1986 to July. 2000, of 5,493 patients who were underwent thyroidectomy, only 8(0.14%) had discovered to have thyroid tuberculosis. The medical records of them were analyzed retrospectively. Results: There were one man and seven women with a mean age of 40.3 years. Only one had tuberculosis sequalae on chest X-ray and two had past history of tuberculous lymphadenitis. However, none of them had symptomatic pulmonary tuberculosis. Most frequent symptom was palpable neck mass. The preoperative U/S, CT and FNAB failed to diagnose thyroid tuberculosis. The pathologic reports were chronic granulomatous thyroiditis with caseous necrosis in all the cases and AFB stain was positve in 5 cases. All cases were successfully treated by surgical resection and anti-Tbc. medications. Conclusions: The incidence of thyroid tuberculosis was extremely low and most of them have been presented as a palpable neck mass especially in relatively young-aged female patients. Although any diagnosis for thyroid tuberculosis prior to microscopical study of tissue removed at operation was not yielded, the preoperative diagnostic workups will be available with experience. Surgical resection and anti- Tbc medication would be the choice in the management of thyroid tuberculosis.

• Journal of Korean Library and Information Science Society
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• v.36 no.1
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• pp.371-414
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• 2005

This paper aims to suggest new strategies for operating school library digital resource room by analyzing the current states of 349 school library digital resource room and its educational effects. The project for school library digital resource room provided the foundations for the various informational and educational services : extended information materials, changes in library environment, collecting information through the web sites, providing authentic materials, reading instruction, library assisted instruction (LAI). The suggestions are as follows. 1) The national standards is required for the digital resources room in school libraries. 2) Reading and information literacy instruction should be institutionalized. 3) Library assisted instruction (LAI) should be included in school curriculum. 4) Professionally qualified teacher librarians are required for planning and managing the school library. 5) School library in-service program is needed for all members of the school community.

• Journal of Korean Society for Atmospheric Environment
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• v.29 no.6
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• pp.745-756
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• 2013

The purpose of this study is to evaluate representativeness of fuel-based emission factors. Twelve light-duty diesel vehicles which meet Euro-3 to 5 legislative emission limits were selected for emission tests. Second-by-second modal emission rates of vehicles were measured on a standard laboratory chassis dynamometer system. An off-cycle driving cycle was developed as a representative Korean real-world on-road driving cycle. Fuel-based emission factors were developed for short trip segments that involved in the selected driving cycle. Each segment was defined to have unit travel distance, which is 1 km, and characterized by its average speed and Relative Positive Acceleration (RPA). Fuel-based $NO_x$ emission factors demonstrate relatively good representativeness in terms of vehicle operation conditions. $NO_x$ emission factors are estimated to be within ${\pm}20%$ of area-wide emission factor under more than 40% of total driving situations. This result implies that the fuel-based $NO_x$ emission factor could be practically implemented into the on-road emission management strategies, such as a remote sensing device (RSD). High emitting vehicles as well as high emitting operating conditions heavily affect on the mean values and distributions of CO and THC emission factors. Few high emitting conditions are pulling up the mean value and biasing the distributions, which weaken representativeness of fuel-based CO and THC emission factors.

• Journal of the Korea Computer Industry Society
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• v.3 no.12
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• pp.1759-1764
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• 2002

Linux was developed by Linus Torvalds at University of Helsinkyi, Finland. Today Linux becomes to compete with windows operation of Microsoft. and is adopted worldwide on IBM products. The British government is viewing Linux as a desktop operating system. In Tunisia, Linux is under consideration as the governmental operating system. Even Sun Microsystems, the powerful supplier in workstation and sewer market, is working on developing ways in using Linux. is now getting further attentions on governmental level in several countries. The growing interests in adopting Linux in computer operating systems are not on a personal preference level any more. A number of companies and organizations, even some governmental administrations start to see its potential capabilities and are looking for ways for its applications. The necessity of teaching Linux in university is, therefore, imminent and should be discussed in course development without delay. The purpose of this paper is showing the things to be considered, problem analysis and some solution as grafting Linux in university education.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.426-432
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• 2017

This paper analyzed the status of defense acquisition organizations, the defense acquisition system, and management strategies for each field in major developed countries. The current state of defense procurement organizations in major developed countries would be applied to identify the operational systems in domestic market. Effective management of defense commissioners on the management of each sector is being carried out by the government and company. We believe that it will be possible to establish transparency, credibility, and expertise from the perspective of third parties through securing the current pre - verification procedure. In conclusion, we believe that the operation of the Defense Business Supervisor enabled the establishment of a pre-supervision system for the entire defense business, and an environment to ensure maximum independence.

• The Journal of the Korea Contents Association
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• v.13 no.8
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• pp.141-151
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• 2013

The adult guardianship system takes effect from July 2013. At this point, just a month prior to the enforcement of the system, Korea should be prepared for specific countermeasures to implement the optimized system. Japan has high similarities in social and culture matters with Korea and is evaluated that the introduction background of adult guardianship system and overall operation system is similar to Korea's. As misconducts by adult guardians among the various problems occurred in Japan bring decreasing trust and delay the system settlement, proactive and posterior measures should be prepared for these problems. Therefore, in this study, misconducts by adult guardians occurred in the enforcement of adult guardianship system in Japan is to be examined and through these findings, several strategies were suggested to prevent misconducts in Korea which include the expansion of organization and manpower in family Court, dual supervision system and emergent appointment system etc.

• Journal of Korean Society of Environmental Engineers
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• v.32 no.3
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• pp.296-308
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• 2010

The peroxone process overcomes many of the limitations associated with conventional and advanced water treatment systems using chlorine disinfection and ozone oxidation processes. Ozone and hydrogen peroxide generate highly reactive hydroxyl free radical which oxidize various organic compounds and has highly removal efficiency. The key issue to operate peroxone process is developing the method to achieve high process effectiveness when scavengers that inhibit generation of OH radicals or consume OH radicals are co-existing in the process. Also many studies, to minimize inorganic oxidative by-products such as bromate and to reduce disinfection by-products after chlorination behind peroxone process, are needed. And we should consider the excess residual hydrogen peroxide in the water. On-line instruments and control strategies need to be developed to ensure effective and robust operation under conditions of varying load. If problems above mentioned are solved, peroxone process will be applied diversely for water treatment.

• Journal of the Korean Society for information Management
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• v.37 no.3
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• pp.1-24
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• 2020

The social media paradigm centered on videos continues to deepen due to the diversification of 5G devices, high-definition and immersive SNS. The purpose of this study is to propose various utilization strategies and measures through the analysis of the current status of YouTube channel operation and provided contents operated in public libraries. In this study, 44 libraries in Korea that have opened and operated Library YouTube Channel and 12 libraries that actively utilize library YouTube channels with more than 1,000 subscribers were surveyed for the current status of subscribers, views, video count data, and contents and delivery methods of Library YouTube Channel. Based on the analysis results, the library's YouTube channel was proposed to utilize the library's YouTube channel, 1) to secure the specificity and purpose of the library's YouTube channel, 2) to promote and enhance access to the YouTube channel, 3) to improve the YouTube channel to user-friendly interface, 5) to plan and provide library expertise and educational contents, 6) to operate the integrated YouTube channel, and 7) to provide user-based content.

• The Journal of the Korea Contents Association
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• v.7 no.10
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• pp.302-310
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• 2007

This research, through an empirical analysis of the management of food materials in the super deluxe and deluxe hotels in Seoul, verified the difference, and established strategies according to the difference. According to the study, to enhance the level of the food material management, the introduction of scientific methods and system of the deluxe hotels has to be preceded, the training of special inspectors and the utilization of inspection methods needs improvement, and the purchasing contracts and effective purchasing methods have to be renewed. As for the storing management, the difference between hotel grades was low. The implication of this study as follows. First, to enhance the efficiency of man power operation, we have to introduce computer systems. Second, training based on the food materials purchasing manual has to be achieved. Third, we have to increase inspectors' specialty through the arrangement of man power rotation.

• The Journal of the Korea Contents Association
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• v.7 no.8
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• pp.207-214
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• 2007

The special educational technology is the combination term of special education and educational technology. These days, the applications of educational technology in special education field is very increasing through the development of IT and the progress of teaching methods. The development of IT bring out the applications of assistive technology. The various development and operation strategies of the individualized educational program have promoted the advancement of teaching methods for the children with disabilities. The purpose of this paper is to inquiry and to present the applicable contents of special educational technology for the children with disabilities. The important study problems of this study are to examine the differences between educational technology and special educational technology, to categorize special educational technology in the view of application and to develop the contents of instructional design and assistive technology device. Finally it is to suggest the progress tasks for the development of the special educational technology.