• 한국의류학회지
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• 제16권4호
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• pp.357-369
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• 1992

The purpose of this study was to clarify the relationship between the Ideal Beauty of Body and the Form of Dress, and to analyze its historical perspectives. First of all, the concept of the Ideal Beauty of Body, the definition of Dress Form, and the method and system to clarify Dress Form were depicted. Based on this frame work, the Form of Dress related to the Ideal Beauty of Body was described historically. For this purpose, documentary research were conducted and representative photography and paintings were used. The analysis was limited to the female one-Piece dress from Ancient Egypt, Greece, Rome, Byzantine, Gothic, Renaissance, Baroque, Rococo, Naoclassicism, and to Romanticism. The results were as follows: 1. The Ideal Beauty of Body was found to be different throughout history and to be intimate- ly linked with fashionable dress. 2. The Form of Dress consisted of four basic components: The form of body itself, the form of clothing itself, the method of wearing, and the relationship between body and clothing. 3. The standards for classification of body form were body structure, body type, body proportion, posture, and movement. Clothing form was generally classified into flat type (unstructured type) and three dementional type (structured type); flat type was subclassified into draped type and tunic type. The method of wearing was classified into attached type, tying-up type, wrap·around type, pull-over type, open type and plastistic type. The relationship between body and clothing after wearing was generally classified into body priority type and clothing priority type. The clothing priority type was further divided into body exaggeration type and body concealment type; Body exaggeration type was further divided into upward type, downward type, forward type, backward type, right type and constriction type. 4. The pursuit of venus coelestis, metaphysical body part, ectomorphic body type, flat type clothing, body priority type; the pursuit of Venus Naturalis, physical body part, endomorphic body type, three dementional type clothing, clothing priority type proved to be closely related respectively by the historical study on the Ideal Beauty of Body and the Form of Dress.

• 스마트미디어저널
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• 제9권1호
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• pp.9-15
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• 2020

블록체인은 데이터의 투명성 및 보안성이 뛰어난 분산공유원장으로써 핵심기술인 합의 알고리즘을 통하여 참여 노드에 동일한 데이터를 순차적으로 공유할 수 있도록 한다. 이러한 블록체인 기술의 특징을 활용하고자 최근 기업 및 공공기관을 중심으로 블록체인을 적용하려는 시도가 증가하고 있다. 본 논문에서는 분산 네트워크와 같은 비동기 네트워크 환경에서 활용되는 프라이빗 블록체인의 합의 알고리즘인 PBFT를 수정하여 네트워크 통신비용 및 합의 안정성을 고려한 수정된 PBFT를 제안하였다. 수정된 PBFT는 노드 간 신뢰가 보장된 비동기 네트워크 환경의 특징을 감안하여 클라이언트의 요청 검증에 대하여 기존의 전체 참여 방식을 개선하여 2/N의 Leader(리더)를 통한 합의와 인증을 제안하였다. 해당 과정에서 발생되는 브로드캐스트 과정의 간소화를 통하여 합의를 위한 최소 노드 수 유지가 가능하였으며 네트워크 통신을 위한 효율적 비용관리가 가능하다.

• 복식
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• 제56권9호
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• pp.83-97
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• 2006

This Study is a thesis presenting handicrafty and decorative textile design as well as sensual fashion design through the works of Gustav Klimt. The result is as below; The formative qualities in the works of Klimt could be featured as decorativeness, sensuality and symbolism. First, the decorative inclination is prominent in the portrait and the effect is maximized with the golden mosaic shape expressed on the dress and the background influenced by the Byzantine. Second, the sensuality could be recognized directly from the women's pose or facial expression in the works of Klimt, otherwise appeared on the refined expression showed on the portraits of noble lady Third, to surpass the reality, Klimt preferred the symbolic expression, which can be shown on the patterns in the works addressing the themes such as the legends and myths, or figures of men and women expressed with the image of an abstract features of membrum. The development of the textile design is as fellowed. First, it analyzes and reconstitutes the formativeness and the element of design in the works of Klimt by the flow of the form factor. Second. it makes a pattern of a single nature through perception, analysis, description and drawing and expresses with realization of the characteristics of Klimt. Focusing on the handicrafts and decorativeness out of the latest trends and making the most use of the sensuality, the designed textiles were completed by the handicrafty techniques, used in the fashion design and completed as the design of sensual images. The textile development aims at minimizing the limit of design that can be caused by the absence of silhouette and detail, expanding the range of its creativity of fashion designs and creating fashion design high value-added.

• 한국의류학회지
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• 제37권8호
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• pp.1029-1043
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• 2013

The pearl is a highly valuable gem that has historically represented wealth and power. Pearl necklaces have developed intro various types and represent an essential status item for modern women. This study first examines the symbolic and various meanings of pearls. Second, this study examines wearing types and pearl necklace patterns based on historical figures and modern fashion icons famous for personal displays of pearls. This study examines and analyzes various specialty publications about jewels, history of costumes, fashion magazines, academic research data, and internet search results. The conclusion of this study is as follows. Pearls have various symbolic meanings that are unlike other gems. Pearls represent purity, innocence, marital fidelity, an intimate relationship with the moon, frozen tears of God, solitude, triumph over adversity, wisdom, and sensual attraction. The societies and people traditionally famous for pearls were the Roman Empire, Queen Cleopatra of Egypt, Queen Theodora of the Byzantine Empire, Queen Elizabeth I, Queen Marie Antoinette, Empress of Eugenie Napoleon III, and Queen Alexandra. They showed a special affection for pearl necklaces and various wearing patterns unique to the time. Their pearl necklaces became a historic and symbolic legacy. Reestablished through the costume jewelry of cultivated pearls designed by Coco Chanel in the $20^{th}$ century, the pearl necklace has showed a variety of fashion trends in addition to a traditional symbolism of wealth and power. Josephine Baker, Louise Brooks, Marilyn Monroe, Elizabeth Taylor, Jacqueline Kennedy, Queen Elizabeth II, Princess Diana, Michelle Obama and Sarah Jessica Parker have worn notable pearl necklaces and established an individual style that utilizes the adornment of fashionable and stylish pearl necklaces. They have worn pearl necklaces while applying various fashion trend motifs to symbolic pearl features of that have changed the perception of the pearl and themselves.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.569-570
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• 2017

비트코인에 기반한 블록체인 기술은 익명성이 있는 스마트 계약, 저렴한 송금, 온라인 거래 등을 가능하게 하는 하부구조를 제시하고 있다. 하지만, 비트코인을 구현하는 블록체인 기술은 처리량과 지연시간 간의 트레이드오프 관계에 있는 확장가능성 제한을 갖고 있다. 이러한 문제를 해결하기 위한 비잔틴 고장 감내 기반 블록체인 기술이 제안되었다. 이 기법은 리더를 선출하고 리더에 의해 기존 블록 내에 작업증명을 포함하지 않는 많은 마이크로 블록을 구성하여 지연시간 증가 없이 처리량을 향상시켰다. 하지만 이 기법은 리더를 선출하는 부분에서 기존 기법보다 보안성이 떨어질 수 있다. 본 논문에서는 마이크로 블록기술과 병행수행 기법을 통해 블록체인 기술의 확장가능성을 위한 기법을 제안한다. 하나의 마이크로 블록 내에는 여러 개의 거래에 대한 정보가 있다. 제안 기법에서는 이러한 마이크로 블록들은 병행 수행함으로써 기존 기법보다 처리량을 증가시킬 수 있다.

• 한국컴퓨터정보학회논문지
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• 제25권4호
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• pp.47-53
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• 2020

블록체인은 분산 네트워크에 연결된 노드 간 검증과 합의를 통하여 정보를 투명하게 관리하는 분산공유원장이다. 최근에 프라이빗 블록체인을 기반으로 허가된 기관 간 데이터 관리 사례가 증가하고 있다. 본 논문에서는 프라이빗 블록체인의 대표적 합의 알고리즘인 PBFT(Practical Byzantine Fault Tolerance)의 적용 사례 및 기술적 처리과정을 조사하고 PBFT 처리 시 발생하는 중복된 검증과 합의과정을 간소화 하여 효율적인 합의가 가능하도록 수정된 PBFT 알고리즘을 제안하였다. 본 논문에서 제안한 알고리즘은 권위 있는 노드를 통한 위임노드 선출과정을 거치며 후보노드 대상 효율적인 재선출 알고리즘을 고려하여 위임노드선출과정의 안전성을 높일 수 있기 때문에 전반적으로 합의과정의 네트워크 통신비용에 대한 부담을 줄이고 노드 간 최종 합의과정을 빠르게 처리할 수 있다.

• 디지털융복합연구
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• 제17권1호
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• pp.195-201
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• 2019

본 논문은 무선랜 공유를 위한 블록체인 시스템 적용 방안을 제안한다. 무선랜은 비인가 대역에서 동작하는 무료 무선 액세스 기술로 현재 폭발적으로 증가하는 무선랜 장치들로 인해 상호 간섭이 가중되고 있다. 또한 무선랜 액세스 장치가 공유되지 않아 개인이나 단체가 무분별하게 무선랜 설치를 하고 있는 것이 큰 문제이다. 최근 블록체인 기술은 이러한 상호 비협력적 시장에서 암호 화폐를 통해 효율적인 협력을 이끌어 낼 수 있음을 보여 주었다. 본 논문에서는 개별 인증기반의 무선랜 접속 방식에서 블록체인 암호 화폐에 기반한 접속 방식을 제안한다. 제안한 시스템에서는 스마트 컨트랙트를 이용하여 웹에서의 사용자 접근이 용이하게 하였으며, 실시간 무선랜 접속을 위해 기존 작업 증명 대신 권한 증명을 구현하였다.

• 산업경영시스템학회지
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• 제43권4호
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• pp.168-177
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• 2020

In recent years, importance of blockchain systems has been grown after success of bitcoin. Distributed consensus algorithm is used to achieve an agreement, which means the same information is recorded in all nodes participating in blockchain network. Various algorithms were suggested to resolve blockchain trilemma, which refers conflict between decentralization, scalability, security. An algorithm based on Byzantine Agreement among Decentralized Agents (BADA) were designed for the same manner, and it used limited committee that enables an efficient consensus among considerable number of nodes. In addition, election of committee based on Proof-of-Nonce guarantees decentralization and security. In spite of such prominence, application of BADA in actual blockchain system requires further researches about performance and essential features affecting on the performance. However, performance assessment committed in real systems takes a long time and costs a great deal of budget. Based on this motivation, we designed and implemented a simulator for measuring performance of BADA. Specifically, we defined a simulation framework including three components named simulator Command Line Interface, transaction generator, BADA nodes. Furthermore, we carried out response surface analysis for revealing latent relationship between performance measure and design parameters. By using obtained response surface models, we could find an optimal configuration of design parameters for achieving a given desirable performance level.

• 한국인터넷방송통신학회논문지
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• 제20권2호
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• pp.1-11
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• 2020

스마트 그리드 환경의 중요한 기본 구성 요소라 할 수 있는 스마트 미터기는 유틸리티 기관에게 실시간 전력소비 정보를 제공한다. 그렇지만, 스마트 미터기에 의한 전력 소비 데이터 집계 과정에서 정보 보안 및 사생활 보호를 보장하는 작업은 쉽지 않다. 최근 몇 년 동안 특정 소비자의 전력 소비 정보 추출을 방지하는 정보 보안 데이터 집계 프로세스에 관해 많은 연구가 있었으나 대부분 내부 공격자로부터 안전하지 않거나 데이터 무결성을 제공하지 못하고 있다. 게다가, bilinear pairing 또는 hash-to-point 작업이 스마트 미터기에서 수행되기 때문에 계산 비용이 만족스럽지 않은 상황이다. 현재 에너지 공급 회사, 신생 기업, 기술 개발자, 금융 기관, 국가 정부 및 학계에서 큰 관심을 끌고 있는 기술로 블록체인 또는 분산 원장 기술이 활발히 연구되고 있다. 특히, 전력 소비 네트워크와 관련하여 블록체인은 상당한 이점과 혁신을 가져올 것으로 소개되고 있다. 이에 본 연구에서는 블록체인 기술을 사용한 분산된 전력 소비 정보 보호 및 보안 미터 데이터 집계 시스템을 제안하고, 손쉽게 구현할 수 있는 자바 프로그램을 나타낸다. 여기에서 스마트 미터 데이터는 계층적 Merkle 트리에 의해 집계 및 검증되며, 비잔틴 결함 허용 프로토콜에 의한 합의 방식이 지원된다.

• 복식
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• 제1권
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• pp.131-150
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• 1977

The new sense of costume is controlled by silhouette. The sense of the times is sensitively reflected in silhouette. For we can perceive the transition of the times through silhouette it is significant to know what course of changes the western costume, which almost became the international costume today, had been going through. I began with the definition and condition of silhouette in this study of silhouette. I took a general survey of silhouette study-ing various kinds of silhouette and the relation between the material and silhouette. I sought the factors which causec the changes in costume and also studies the process of the changes The process of the costume changes is studied by the order of ancient times, mediaeval times, mordern ages and present days. I selected one representative silhouette of women's costume of each period. The darpery form of the ancient time's costume became the tunic form and the tunic form became the tight tunic form today. From this we can perceive that the Gothic period was the limitation of westrn costume. It means that the ancient times was the period of drapery, the midiaeval times was the period of transition from tunic into tight tunic and the modern ages is the period of development of tight tunic. In Egyptian period thin materials were used for costume which was worn in exposed style. In Greek period the costume had the drapery style. The Roman's magnificent costume resembled the Greek's. The mediaeval costume was formed in Byzantium where the northern Europe style of costume was mixed with the gay oriental costume. The Romanesque and Gothic period followed the Byzantine period completing the midiaeval costume. Tight tunic is developed in modern ages. Italian fashion of tight tunic was the first fashion of the modern ages. Germanic and spanish fashion came after it. As Baroque period opened the French royal costume became magnificent and added Brition fashish to it. With the commencement of the modern ages the royal fashion came to an end. Modernages became peaple's period and the costume was simplified. After the First world wav designers and fashion books appeared with the development of technology. Thus the period of fashion industry came. For the designers in 20th country competed to create new designs, the fashion was changed year by year. The simplicity and practicality are not ignored in design, arid the designers added more atristic sense to dresses.