• Proceedings of the Korean Society of Computer Information Conference
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• 한국컴퓨터정보학회 2012년도 제46차 하계학술발표논문집 20권2호
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• pp.107-109
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• 2012

현재의 고도 디지털 정보화 사회에서는 많은 자료들이 디지털로 생산, 관리, 이용, 보존되고 있으며 이들의 안전한 장기보존은 역사의 연속성 측면에서 매우 중요한 문제이다. 공공기관, 민간기업 등 대규모 조직에서는 조직의 연속성을 보장하기 위해 이런 디지털자료의 보관을 위해 많은 노력을 기울이고 있으나 개인의 디지털 자료는 영속성 있게 보관하기가 매우 어렵다. 이 논문에서는 개인이 소유한 디지털 유산도 안전하게 장기보존될 수 있어야 한다는 필요성을 제시하고 이를 위해 필요한 정책적, 기술적 방안들에 대해 검토해 보고자 한다.

• 공원문화
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• 통권18호
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• pp.15-28
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• 1981

영국의 National Trust는 자연이나, 역사적 건축건물을 국민의 이익을 위해 영속히 보호하는 순수한 민간단체로, 전국민적 운동으로서, 더욱 더 성공을 거둔 일례이다. 우리나라에서도 1977년 10월 자연보호 운동의 획기적인 리기가 마련되어, 이후 정부.민간의 이원적인 자율적 체계로 범국민적 자연보호운동을 전개해 오고 있는 이 시기에 자연보호운동에 관심을 갖는 독자 제위께 참고가 될 것으로 생각되어 영정도웅씨가 쓴 "자연과 문화"라는 제하의 글을 소개하고자 합니다.

• Proceedings of the Korean Information Science Society Conference
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• 한국정보과학회 2003년도 봄 학술발표논문집 Vol.30 No.1 (C)
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• pp.569-571
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• 2003

EJB (Enterprise Java Beans)는 웹 응용 서버 스펙인 J2EE(Java2 Enterprise Edition)의 핵심으로서, 비즈니스 업무를 웹 환경에서 컴포넌트 형태로 작성하여 재 사용성을 높이기 위한 서버 측 컴포넌트 프로그래밍 모델이다. EJB는 컴포넌트를 특성에 따라, 일반적인 비즈니스 로직을 나타내는 세션 빈(Session Bean), 데이터베이스에 저장된 정보와 같은 여러 클라이언트에 의해 공유되며 영속 장치에 저장되는 엔터티 빈(Entity Bean) 그리고 JMS메시지를 처리하는 메시지 드리븐 빈(Message-driven Bean)으로 구분한다. 본 논문에서는 ETRI에서 개발한 E504 EJB 서버에서 여러 클라이언트가 하나의 엔터티 빈에 동시에 접근할 경우 데이터 일관성 유지를 위한 동시성 제어 방법에 대해 논의한다.

• Journal of the Korea Society of Computer and Information
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• 제5권3호
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• pp.151-158
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• 2000

This dissertation measures transitory items using earnings change scaled by beginning-of-period price(FreemanㆍTse 1992) and the earnings-to-price ratio(AliㆍZarowin 1992). Contextual regression model results confirm the incremental explanatory power for predominantly permanent earnings, and suggest that cash flows also have incremental explanatory power in the presence of predominantly permanent earnings. But contextual regression results represent that while earnings are consistent with a smaller marginal impact from extreme (transitory) earnings on abnormal returns, cash flows have no greater impact on abnormal returns in the presence of large transitory components in earnings.

• Journal of Korea Game Society
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• 제14권1호
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• pp.19-28
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• 2014

This paper tried to verify whether we can make NPCs generate emergent quests consistently by experiments in the persistent world of Role Playing Games where the persistent world can generate stories through interaction among game components. In this paper, we test NPC based procedural quest generation techniques assuming quest types suggested in the past research in the persistent virtual RPG world. Our system uses desire model of NPCs and dynamic resource management system to make decision of quest generation. Our decision process considers desire satisfaction, money deposit, and friendship of NPCs. These parameters are dynamically changed by quest completion status, and affect next quest generation process. This paper shows that NPCs in the persistent virtual world can generate quests based on procedural quest techniques consistently.

• Korean journal of applied entomology
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• 제15권4호
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• pp.169-178
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• 1976

The concentration of amino acids, total nitrogen, trehalose, lipids and the activities of respiratory, acid$\cdot$alkaline phosphatase, glutamic oxalozcetic transaminase and glutamic pyruvic transaminase during larval stage in Pine leaf gall midge, Thecodiplosis janensis Uchi. et Inouye were measured using Paper chromatographic method, micro-Kjeldahl method, Thin layer chromatographic method, Warburg's manometric method, Bessey-Lowry method and Reitman-Frankel method, respectively. Healthy specimens )yore chosen as samples of each larval stages; alrva in gall and larva in soil. Amino acids present in the alcoholic extracts were alanine, glutamic acid, glycine, histidine, methionine, proline, threonine, tryptophan and valine. The total nitrogen concentration reached to 31.348mg/g during the larva in gall and the larval stage in soil of the value was decreased to 29.027mg/g. The hemolymph sugar, trehalose value for larva in soil was about two times of the value for larva in gall. Total lipid, phospholipid,monoacylglycerol, triacylglycerol, sterol, free fatty acid and ester cholesterol were identified at larval stages in gall and soil. Triacylglycerol concentration reached high level in contrast with other lipid contents during larvae in gall and larva in soil. Free fatty acid, sterol except decreased lipids during larval stage in soil. Endogenous respiration, succinate of respiratory activities decreased at larval stage in soil compare with larva in gall. The activities of acid phosphatase decreased larval stage in soil but the activities of alkaline phosphatase increased remarkably. The activities of glutamic oxaloacetic transaminase and glutamic pyruvic transaminase reached high level of the larva in gall.

• Journal of The Korean Society of Grassland and Forage Science
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• 제30권2호
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• pp.103-108
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• 2010

This experiment was carried out to select adaptability and forage production and quality of Pasture species at paddy field from 2007 to 2009 at Chungnam province. Among growth characters, 'Tall fescue' and 'Tall fescue mixture (Orchardgrass, Tall fescue, Perennial ryegrass, Kentuck bluegrass, White clover)' were somewhat good for waterlogging, production and disease and insect resistance. Fresh yield of 'Tall fescue mixture' and 'Tall fescue' were the highest as 84,294 kg and 78,400 kg per ha among 6 species. The dry yield of 'Tall fescue mixture' and 'Tall fescue' were also the highest as 20,644 kg and 19,759 kg per ha. The result of this study showed that 'Tall fescue mixture' and 'Tall fescue' had good growth characters and forage productivity at paddy field in middle region of South Korea.

• Tunnel and Underground Space
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• 제14권6호
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• pp.391-398
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• 2004

An algebraic algorithm for predicting the joint trace distribution on the cut-face of rock slope based on the orientations and the locations of joints investigated in the borehole has been developed. Joint trace prediction is manipulated by utilizing the three dimensional plane equations of both joint planes and projection face, and the extent of trace within the projection area is calculated by considering the persistence of each joint plane. Joint trace prediction method is efficiently applied for analyzing the stability and the adequacy of support design of Gimhae Naesam cut-slope, which is structurally unstable due to slumping. Structural characteristics of rock mass is investigated by performing DOM drilling and the potential rock mass sliding inside slope face is analyzed by examining the orientations of joint planes which can induce the slope failure. Also, the efficiency of anchor support design is evaluated by considering the joint trace distribution on the anchor installation area and its sliding potential.

• Fire Science and Engineering
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• 제26권2호
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• pp.32-39
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• 2012

This research focuses on finding the way of improving creativity in fire stations by scrutinizing the factors influencing and enhancing creativity in organizations. As environmental changes including the needs of citizens as well as the climate change are moving culminated today, fire stations should be changed appropriately to get the legitimacy of existence not to mention their own mission accomplishments. In this respect, the creativity can be expected as the main factor for fire stations' going concern. This research provided 5 hypotheses to find whether the chosen factors such as vision, learning/unlearning and positive feedback affect the creativity in fire stations. To prove hypotheses are valid, we employed survey as a method in which 155 firemen in Seoul responded, ending up with getting the result that the vision formulation and sharing, unlearning activities and positive feedback improve organizational creativity. In conclusion, this paper suggests that fire stations establish useful policies for the creativity based on these research findings.

• Journal of KIISE
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• 제43권2호
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• pp.152-162
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• 2016

Most traditional garbage collectors commonly use the language level metadata, which is designed for pointer type searching. However, because it is difficult to use this metadata in non-volatile memory allocation platforms, a new garbage collection technique is essential for non-volatile memory utilization. In this paper, we design new metadata for managing information regarding non-volatile memory allocation called "Allocation Tree". This metadata is comprised of tree data structure for fast information lookup and a node that holds an allocation address and an object ID pair in key-value form. The Garbage Collector starts collecting when there are insufficient non-volatile memory spaces, and it compares user data and the allocation tree for garbage detection. We develop this algorithm in a persistent heap based non-volatile memory allocation platform called "HEAPO" for demonstration.