• Journal of Korean Society of Archives and Records Management
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• v.12 no.3
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• pp.29-46
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• 2012

Electronic records are merely series of bits without understanding the formats of content files. There are numerous types of formats and also possibilities of extinction. For long term preservation, it is essential to understand and manage formats. In addition to managing format itself, accurate information on the format needs to be stored for electronic records. In this study, various types of electronic files, without checking with the naked eye, has developed a tool to extract the header information in the format of electronic files with the file extension validation tool to compare format and validate digital component.

• Journal of Chest Surgery
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• v.28 no.10
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• pp.885-891
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• 1995

In order to test the hypothesis that the pulmonic valve, when used to replace the aortic root as a pulmonary autograft, will remain a viable anatomical structure and will grow and develop normally along with the host, we performed aortic valve replacement with the pulmonary autograft in 15 neonatal piglets. The weight of the donor was 9.3 $\pm$ 0.2 kg, the recipient 9.6 $\pm$ 0.3 kg. Measured diameters of pulmonic annulus were 14 $\pm$ 0.2 mm for autograft and 14.2 $\pm$ 0.2 mm for pulmonary artery homograft. Operation was performed under cardiopulmonary bypass with deep hypothermia [20oC at low flow perfusion [70 ml/kg/min . The mean operation time was 227 $\pm$ 10 min., bypass time 152$\pm$ 7.6 min. and aortic cross clamp time 73$\pm$ 4.6 min.. 9 piglets survived more than 12 hours. One survived 12 days and died of pneumonia and the latest one survived in good condition and sacrificed at postoperative 6th week for cardiac catheterization and pathologic examination that revealed the viability and growing of the pulmonary autograft. Currently we are able to complete the operation with good preservation of cardiac function, and our postoperative care has evolved to the extent that we are now confident enough of having an acceptable percentage of long term survivors to undertake a definite study in this regard.

• Asian-Australasian Journal of Animal Sciences
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• v.17 no.5
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• pp.726-732
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• 2004

In this manuscript, a review of the diversity of Chinese indigenous goat breeds according to data from body stature and appearance, chromosome group, blood proteins, DNA molecular markers (mitochondria DNA, random amplified polymorphic DNA, microsatellite DNA, major histocompatibility complex) has been introduced. All of these provide efficient tools for the diversity analysis of Chinese indigenous goat breeds and are very important for biodiversity conservation, restoration of declining goat breeds, the priority defining in Chinese indigenous goat breeds' protection and the selection of nature preservation zones. Many Chinese indigenous goat breeds with small population size in the isolated mountains or reservoir areas are verging the potential threat of extinction, effectively lost with the rapid destroying of ecological environment. On the other hand, as a result of the introduction of modern commercial goat breeds and shortage of effective conservation, some populations, such as Small-xiang goat and Tibetan goat decrease rapidly in number of sires. In the interests of the long-term future of the goat breeds in China, conservation of goat breeds' genetic resources should be considered urgently and some conservation measures should be adopted. In addition, the continuing development of molecular biology will further enhance conservation of diversity of Chinese indigenous goat breeds.

• Transactions of the Society of Information Storage Systems
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• v.10 no.1
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• pp.7-13
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• 2014

The Blu-ray Disc Recordable(BD-R) is one of strong candidates for archival application among optical media formats, because of its large capability. However, the well-defined accelerated aging test conditions and evaluation criteria have not yet been fully confirmed for BD-R. In this study, the data stability and degradation aspect of BD-R were analyzed by the random-symbol error rate(R-SER) measurement after the accelerated aging test. And a reasonable test condition of accelerated aging for BD-R and the appropriate evaluation criterion using R-SER measurement were discussed.

• The Journal of the Korea Contents Association
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• v.12 no.7
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• pp.1-10
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• 2012

Today, As the internet and electronic publishing technology was powerful and there are many benefits to using various academic information which has an electronic document of high quality. Many researchers had much required to see a full-text of electronic document. There was an requirement of digital achieving activities between countries for each other electronic document in order to safely preserve and services. In this paper, we have implemented an electronic document local-hosting system to provide free service to KESLI member institutions and provide pay-per-view service to individual users and small/medium size companies who are not member of KESLI and builded national long-term preservation system of electronic information resources.

• Biotechnology and Bioprocess Engineering:BBE
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• v.5 no.5
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• pp.372-378
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• 2000

The cell culture of Angelica gigas Nakai producing decursin derivatives and immunostimulating polysaccharides was preserved in liquid nitrogen after pre-freezing in a deep freezer at -70$^{\circ}C$ for 480 min. The effects of the cryoprotectant and pretreatment before cooling were investigated to obtain the optimal procedure for cyropreservation. When compared to mannitol, sorbitol, or NaCl with a similar osmotic pressure, 0.7 M sucrose was found to be the best osmoticum for the cryopreservation of A. gigas cells. In the pre-culture medium, the cells in the exponential growth phase showed phase showed the best post-freezing survival after cryopreservation. A mixture of sucrose, glycerol, and DMSO was found to be an effective cryoprotectant and a higher concentration of the cryoprotectant provided better cell viability. When compared with the vitrification, the optimum cryopreservation method proposed in this study would seem to be more effective for the long-term storage of suspension cells. The highest relative cell viability established with the procedure was 89%.

• Journal of Korean Society of Archives and Records Management
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• v.11 no.2
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• pp.7-31
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• 2011

The current study aims at reviewing electronic records research trends published during the past 11 years, in order to shed light on what have been accomplished so far as well as what should be done to make progress in the field of archival science. A total of 57 research articles have been selected from 2 journals from archival science and 3 journals from library and information science. Selected articles are categorized into 8 subject areas. For each subject area, research trends are analysed. Where further research are needed are also identified. Implications from the analysis are addressed in terms of the need of empirical studies and sound research methodology as well as of the necessity of establishing consensus on what constitutes academic research in archival science.

• International Journal of High-Rise Buildings
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• v.4 no.3
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• pp.191-198
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• 2015

It is important to accurately predict structural responses to external excitations such as typhoons and earthquakes when designing structures for serviceability. One of the key procedures to predict reliable vibration responses is to evaluate accurate structural dynamic properties using finite element (FE) models, which properly represent the realistic behavior of buildings. In the case of historic masonry buildings, structural damage could also be caused by ambient vibrations or impacts. Therefore, the preservation plans of historic buildings for low-level vibrations or impacts should be provided by analyzing structural damages within serviceability levels. For this purpose, it is required to provide FE model construction and response analysis methods verified with field measurement data. In this research, long-term field measurement was performed for a cathedral and its dynamic properties were evaluated using measured data. Then, the model was calibrated based on the measured dynamic properties and an overall construction method for the masonry cathedral was proposed. Using the measured accelerations, the vibrations of the belfry were analyzed using the calibrated FE model and finally, the FE model for the cathedral was verified by comparing the measured accelerations with the modeled results.

• Journal of the Korean Society for Library and Information Science
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• v.50 no.2
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• pp.197-213
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• 2016

This study aims at suggesting mid- and long-term development plan (vision, core values, strategic goals and functional performances, major tasks and detailed action plans for each strategy, organizational and human resources management, shared responsibility with the National Library of Korea which is main library in collection and services of policy information, and cooperation and collaborative exchange programs) for the National Library of Korea, Sejong. This study is based on the appropriateness that the library should enhance its visibility through focusing on the role as the specialized library in charge of public policy information services if it wished to ensure the identity of a branch of the National library of Korea for the comprehensive collection, preservation, and nationwide services of public policy information.

• Journal of Korean Society of Archives and Records Management
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• v.5 no.2
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• pp.103-124
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• 2005

The purpose of the study is to propose the necessity of management and long-term preservation of dataset as records. Although government and corporate bodies produce various dataset in the regular course of the business, dataset have been stored and managed in the information system. Dataset as records should be captured into the record management system and managed in the overall system. They can provide a evidence of the decision-making process of the government and fundamental information of the process. If agents do not perform the right management, dataset records will disappear in the future.