• 복식
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• 제66권7호
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• pp.89-108
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• 2016

The purpose of this study is not only to trace the examples of 'Chesanja' from the texts and artifacts, but also to restore the terminology of the lost traditional Joseon embroidery technique. 'Chesanja' came on Mongolia and Yuan period affected embroidery techniques of the neighboring countries. Therefore, this study will focus on investigate the process of changing 'Chesanja' into Guya(Goya) through ${\ll}Barktonsa{\gg}$ the foreign language transcriptions of the Chosun dynasty, and examine the generation, fashion, and destruction of this technique with the social technical usage. Around the 16th century of the Joseon Dynasty, 'Chesanja' had been actively used as a decorative techniques to dairy products as well as a Buddhist memorial goods embroidered. Accor- dingly, in the "Beonnyeok-Baktongsa"(1515) appeared together written records with 'Chesanja' 'Gwiyeo[귀여]' the Eonhae(Korean annotation) only had emerged in the Joseon Dynasty. It was still a technique to decorate the edges of royal pillow in the mid-17th century. And we have checked from the text "Baktongsaeonhae"(1677) also. Despite this by the mid-18th century, the term in "Baktongsa-sinseok"(1765) and "Baktongsa-sinseok-eonhae"(1765) had disappeared. This phenomenon suggests the possibility that the production and utilization of 'Chesanja' required the sophisticated process for the ruling class had been declined with the custom of embroidery based on the gradation by colorful threads as the preferred technique. Therefore, 'Chesanja' and 'Gwiyeo'[귀여] disappeared from the records but they can be found in the artifacts of the royal family of 19th century. So Chesanja is calls Guya(Goya) and exists as unique technic only in the royal family.

• 한국수소및신에너지학회논문집
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• 제22권6호
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• pp.884-894
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• 2011

Effects of temperature, volatile content, particle diameter and solid input weight were investigated in the batch fluidized bed reactor using OCN703-1100 particle as oxygen carrier and Roto coal and char as fuels. Two solid fuels represented the best reactivity at different temperature, $900^{\circ}C$ for Roto coal and $950^{\circ}C$ for char, respectively. However, we selected $900^{\circ}C$ as the best operating temperature because the improvement of reactivity of char at $950^{\circ}C$ was negligible. Char represented better reactivity than Roto coal because char contains low volatile than Roto coal. For both solid fuels, reactivities were improved with increasing of the particle diameter. These results were explained by solid mixing tests in a transparent fluidized bed using two char particles having different particle size ranges and OCN703-1100 particle. The bigger particle showed better solid mixing with OCN703-1100 particle, and therefore, represented better reactivity. For both solid fuels, reactivities were improved with increasing of the solid input weight within the experimental conditions of this study because the weight of coarse particles increased with the solid input weight increased, and therefore, these coarse particles can mix well with the oxygen carrier.

• 한국정보통신학회논문지
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• 제24권7호
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• pp.857-865
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• 2020

본 논문에서는 시퀀스 다이어그램의 메시지 패턴에 기반하여 자바 코드를 생성하는 방법을 제시하고자 한다. 시퀀스 다이어그램에서 메시지는 몇 가지 유형이 전형적으로 나타낸다. 따라서 이들 유형을 분류하여 패턴으로 정의하고, 이들 각 패턴의 메시지에 대한 정보를 분석하여 코드 변환을 하기 위한 메타 정보를 구축한다. 시퀀스 다이어그램 메시지의 구조적 정보를 분석한 '메타 메시지' 정보를 MetaMessage 데이터스토어에 구축하고, 이들 메타 메시지 정보로부터 구성되는 '메타 메소드' 정보를 MetaMethod 데이터스토어에 구축한다. 이 과정에서 메타 클래스 정보와 메타 오브젝트 정보가 함께 구축되고 사용된다. 각 패턴의 메타 정보에 기반하여 타겟 프로그래밍 언어의 문법에 따라 메시지에 상응하는 코드를 생성하게 된다. 또한, 기존 연구에서는 통합적으로 잘 다루지 않았던 분기와 반복에 대한 복합 패턴을 제시함으로써 기본 패턴과 통합된 코드 생성을 가능하게 한다.

• Journal of Chest Surgery
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• 제13권4호
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• pp.448-454
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• 1980

The juxtaposition of atrial appendage may possibly be diagnosed by angiography recently, and it is widely regarded as an ominous sign of severe cyanotic congenital heart disease. However, it is apparently rare congenital cardiac anomaly in which the atrial appendages lie side by side, both to the left or right of the great arteries, known as left or right juxtaposition of the atrial appendages. Juxtaposition of the atrial appendages has no functional significance, since it does not, itself, cause any hemodynamic disturbance. But it`s presence always indicates the coexistence of other major cardiac anomalies. In review of literatures TGA and VSD are invariable present, and ASD is common. Other anomalies, such as, tricuspid atresia, pulmonary outflow that, obstruction bicuspid pulmonic valve, persistent SVC etc. are relatively high incidence. In this report, we present one case of 6 year old female child having left juxtaposition of atrial appendage combined with TGA [D-looping, D-transposition], TAPVD, large ASD, small VSD, and vertical vein.

• 전자공학회논문지B
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• 제33B권4호
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• pp.148-155
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• 1996

A loop structure optimization algorithm is proposed for generting a set of efficient codes for loop structure in order to optimize RISC compiler codes. Since there are so many loop structure in the program, most of the execution time is used to process looping codes. Thus, reduction of loop instructions is more effective than optimizing codes outside the loop. The proposed algorithm presents a method to combine several different loops into a simple loop. Therefore, rather than executing each loop independently, loops in the program are serached, analyzed, and finally created some relative informtion such as dependency and range. In doing so, the loops in the program can efficiently be recombined and restructured. As a result, the overall execution time for the program of the sequential programming language is reduced.

• 한국에너지공학회:학술대회논문집
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• 한국에너지공학회 2002년도 추계 학술발표회 논문집
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• pp.191-194
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• 2002

매체 순환식 연소(Chemical-Looping Combustion, CLC)는 금속 산화물(산소공여매체, oxygen carrier)의 산소를 이용하여 화석연료를 산화(연료 연소 공정)시키고, 환원된 금속을 다시 산화(매체 산화 공정)시키는 간접적인 연소 공정의 하나이다. 이 방식은 온실효과의 주발생원인 $CO_2$를 원천적으로 회수할 수 있고, 또한 화염이 없는 상태에서 연소반응이 진행됨으로 thermal NOx의 발생을 미연에 방지할 수 있어 고효율의 환경친화적인 연소공정이다.(중략)

• 대한기계학회논문집
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• 제17권12호
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• pp.2995-3006
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• 1993

An automatic mesh generation scheme has been developed for finite element analysis with two-dimensional, quadrilateral elements. The basic strategies of the method are to transform the analysis domain into loops with key nodes and the loops are recursively subdivided into subloops with the use of best split lines. Finally by using the basic loop operators, the meshes are completed. In this algorithm an eight-node loop operator is proposed, which is useful in the area where the change of element size is large and the splitting criteria for subdividing the loops have also been modified to the existing algorithms. Lines, arcs, and cubic spline curves are used to define the boundaries of analysis domain. Sample meshes for several geometries are presented to demonstrate the robustness of the algorithm.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1988년도 추계학술대회 논문집 학회본부
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• pp.111-114
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• 1988

With the increase of size and complicacy of power systems, distribution system need to operate effectively for high reliability. In order to achieve this purpose, the study which apply expert system to operating plan, restoration on fault and distribution system operating, has developing actively. The essential element of the study is system line state which make a system observe. The development of expert system on power system operation make a system be able to judge state of loading and looping system line, related current direction, substation, and distribution line, atomatically by breaker operation. Finally, this paper developed expert system which decides itself atomatically by rules for deciding system line state.

• 경영과학
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• 제8권1호
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• pp.51-70
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• 1991

This paper discusses planning and scheduling problems for efficient utilization of an FMS and presents an integrated decision support system for FMS production planning and scheduling problems. The decision support system, FMSDS(Flexible Manufacturing Systems Decision Support System), includes of data of handling module, part selection module, loading module, load adjusting module, scheduling module and simulation module etc. This paper includes the solution methodology of each subproblem. And an integrated interface scheme between the subproblems is presented. The interface scheme considers the relationships between the subproblems and generates solution using hierarchical and looping approaches. FMSDS is made up of six alternative models considering 3 loading objectives and 2 production order processing strategies. Performance comparisons among 6 alternatives and other decision support systems are shown using the non-terminating simulation techniques.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권3호
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• pp.1393-1405
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• 2017

It is well known that duty-cycling control by dynamically adjusting the polling interval according to the traffic loads can effectively achieve power saving in wireless sensor networks. Thus, there has been a significant research effort in developing polling interval adaptation schemes. Especially, Dynamic Low Power Listening (DLPL) scheme is one of the most widely adopted open-looping polling interval adaptation techniques in wireless sensor networks. In DLPL scheme, if consecutive idle (busy) samplings reach a given fixed threshold, the polling interval is increased (decreased). However, due to the trial-and-error based approach, it may significantly deteriorate the system performance depending on given threshold parameters. In this paper, we propose a novel DLPL scheme, called SDL (Sequential hypothesis testing based Dynamic LPL), which employs sequential hypothesis testing to decide whether to change the polling interval conforming to various traffic conditions. Simulation results show that SDL achieves substantial power saving over state-of-the-art DLPL schemes.