• 통상정보연구
• /
• 제8권3호
• /
• pp.343-368
• /
• 2006

International transactions of digital goods with the abovementioned characteristics are categorized by stages to review the characteristics and illustrate the problems in this study. The problems that may possibly arise during the implementation of the contract on digital goods are divided by stage, such as delivery, payment and insurance cover in preparation for possible diverse risks. International transactions of digital goods are expected to gain more weight in the world trade in the future. Therefore, legal and technical supports in the international level and international commercial custom need to be settled to smoothen and facilitate international transactions of digital goods.

• 한국의류학회지
• /
• 제40권3호
• /
• pp.456-464
• /
• 2016

A new combat uniform is improved for added combat safety with various functions such as survivability, battle conformity and a camouflage performance system. Camouflage performance is an important factor in terms of combat survivability since it makes identification difficult and provide security. The combat uniform is worn under extreme conditions (exposure to ultraviolet light, sweat and friction) and an excellent color fastness to repeated washing is required. In this study, we investigated the color management, durability and discoloration of new combat uniform fabric with a digital pattern for camouflage performance to provide preliminary color management data. We examined color differences between standard fabric and mass-produced combat uniform fabrics, color differences between each military supply contract firm and color changes in combat uniforms after 60 washing cycles. The slight color differences between standard fabric and mass-produced combat uniform fabrics were tolerable under quality criteria of Republic of Korea Ministry of National Defense. However, the differences between the military supply contract firms were recognizable to the naked eye and increased with repeated washing. Continuous research on color fastness under repeated washing and color management is required to standardize reliability from each military supply contract firm for the daytime performance of a combat uniform's camouflage.

• 디지털융복합연구
• /
• 제14권12호
• /
• pp.13-25
• /
• 2016

본 연구는 2012년부터 2014년까지 국민연금 임의가입자의 계약자 및 계약특성이 해약 행동에 미치는 효과를 로지스틱 회귀모형을 사용하여 분석하였다. 첫째, 남성이 여성보다 탈퇴 오즈가 낮으며 신규가입자 집단에서는 더 큰 차이를 보인다. 둘째, 연령이 증가함에 따라 탈퇴 오즈는 증가하다가 감소하는 특징을 보인다. 셋째, 예상 수익비의 증가는 탈퇴 행동을 억제하는 것으로 나타났다. 넷째, 2013년 국민연금과 기초연금 간 연계 안 발표 결과 전년도에 비해 탈퇴 오즈가 증가하였고 신규가입자 집단에서는 그 크기가 더 크게 나타났다. 다섯째, 17개 광역시 도를 기준으로 광역시 단위에 거주하는, 도시지역 가입자의 탈퇴 오즈가 낮은 것으로 나타났다. 한편, 가입기간과 기준소득 월액과 같은 계약특성의 경우, 탈퇴 오즈에 미치는 영향은 유의미하지만 크기는 작게 나타났다. 본 연구는 향후 임의가입자 유형별 관리방안에 대한 아이디어를 제시하고 특히 예상 수익비의 변화가 해약률에 미치는 영향을 예측할 수 있음을 보였다.

• 디지털융복합연구
• /
• 제17권10호
• /
• pp.13-21
• /
• 2019

제한된 네트워크 자원과 불균등한 전파 자원 분배로 인해 전파자원 부족 문제와 서비스 품질 열화가 발생하고 있다. 또한, 기존 중앙집중식 전파 공유 방식은 전파 공유 활성화를 위한 근본적인 해결책이 되지 못하고 있으며 비용, 편의성, 보안성 관점에서 비효율적이다. 본 논문에서는 전파자원을 분배하고 공유할 수 있는 저비용, 고신뢰, 고효율 플랫폼으로서 블록체인 기반의 스펙트럼 쉐어링 플랫폼을 제안하고 이를 실현하기 위한 법적 쟁점을 분석하였다. 스펙트럼 쉐어링 플랫폼에서는 와이파이 AP 전파 정보와 LTE 모바일 핫스팟 전파 정보를 블록체인에 등록하고, 전파 공유자와 전파 사용자가 스마트 컨트랙트 통해 개인 간 (P2P) 전파 공유 계약을 빠르고 효율적으로 체결한다. 전파 공유에 대한 대가와 품질 관리에 대한 보상인 암호화폐는 선순환적인 전파 공유 오픈 플랫폼 생태계를 활성화할 것이며, 스펙트럼 쉐어링 플랫폼을 통해 편리하고 효율적인 공공 무선 인프라를 제공할 수 있다.

• 디지털산업정보학회논문지
• /
• 제18권2호
• /
• pp.111-125
• /
• 2022

The general view of the division of affiliates of many large corporations is a reorganization of the governance structure, and the smooth division of affiliates is often well wrapped up in a beautiful breakup. However, the parties to the breakup are not only the owners of the company, but all employees as well. Separation of the owner family can be done with joy and good feelings, because they are separated according to the will of the owner family, and each becomes the owner of the company. As Commitment decreases and turnover behavior appears, it is necessary to take a strategic approach to members, along with consideration. This study looked into the recent separation of LG Group's affiliates based on this point of view. To this end, we focused on the case of LX Hausys of LX Group, which was separated from LG Group. To this end, through a meeting with the person in charge of LX Hausys, the company's response to the division was investigated, and FGI was conducted for retired and current members. As a result, it was confirmed through the person in charge that no appropriate measures were taken due to the separation of the company. Through FGI with the retirees and incumbents, the psychological resistance of the members and the decrease in organizational commitment and the increase in turnover intention was confirm.

• 한국생활과학회지
• /
• 제16권6호
• /
• pp.1197-1209
• /
• 2007

The advance of digital contents industry shifts the focus of consumptions; from analogue to digital ones. It gives significant impact on individual life as well as overall society and culture, and it leads to the increased consumption of digital contents. Nevertheless, current digital contents industry fails to secure the sufficient consumer protection systems including relevant rules and laws which regulate the distribution, use, and other transaction activities of digital contents and the efforts, on the part of contents providers, to provide information to consumers and to protect them. Digital contents, by its nature, is different from the existing products so that its nature is likely to cause unique consumer problems totally different from the offline transactions and the electrical transactions of existing products. This study, therefore, aims to identify the possible problems which may be incurred by consumers in their use of digital contents, specify the types of consumer damages, and provide the underlying materials to improve the systems related to digital contents and take legally complementary measures for consumer protection. To identify the types of consumer damages, this study analyzed the results from consumer counselling cases, experts opinion survey, and FGI. For consumer damage cases, this study analyzed the consumer complaints received by open consumer counselling sites of the Korea Consumer Agency and Seoul Electronic Commerce Center. For experts opinion survey, it conducted questionnaire survey of the group of experts from digital contents manufacturers or providers, and those who treated consumer damages directly. For FGI analysis, it organized a panel of students and employees who had used digital contents to understand the types of consumer damages. The results of this study can be summed up as follows. Based on the results from consumer counselling cases, experts opinion survey, and FGI analysis, the consumer damages related to digital contents can be classified, in their nature, into economic or financial damages (25 cases), emotional or psychological ones (15 cases), time-related ones (7 cases), physical ones (4 cases), and privacy-related ones (i.e. leakage of personal data)(3 cases). More specifying the types of damages, damages can be subdivided into contract-, charge-, maintenance-, use-, individual-related ones and other ones. Among them, both contract- and charge-related damages appeared only in the economic or financial damages, whereas user-specific individual damages appeared only in physical and emotional or psychological ones. On the other hand, maintenance- and use-related damages and other ones were observed in both categories of economical or financial damages and time-related ones. Use- and privacy-related damages, in particular, caused emotional or psychological damages.

• 한국전문물리치료학회지
• /
• 제1권1호
• /
• pp.55-60
• /
• 1994

Thirty healthy adults aged 20 to 29 with no history of musculoskeletal or neurogenic disorder volunteered for this study. The contract-relax with agonist contration(CRAC) was applied to the right hamstring muscles with the subject in the supine position. Each hamstring group was stretched on three sucessive days with several repetitions of the technique lasting 1min, 3min, and 5min. respectively. Hamstring extensibility at the knee(ROM) was measured before and after stretching using on electronic digital inclinometer(EDI). The results, namely the increase in ROM, were analysed using one-way repeated ANOVA at p<0.05. The differences were not significant. Possible factors influencing the results are excessive sensitibility of the measuring instrument, the psychological and physical status of the subjects, and the level of muscle fatigue. The mean increases in ROM were 3.0 at 1min., 2.6 at 3min, and 2.1 at 5min. Inclusion of a control group would have further defined the effects of the stretching technique.

• 한국문헌정보학회지
• /
• 제57권1호
• /
• pp.435-456
• /
• 2023

이 연구는 전자책 수급 계약이 전자책 관외대출의 합법적인 근거로서 역할하기에 충분한 요건과 내용을 갖추고 있는지 그 실태를 점검하고, 아울러 도서관의 전자책 수급 계약의 현황과 특성을 파악하기 위한 것이다. 이를 위해서 전자책 대출과 관련된 법적·기술적 환경을 고찰하고, 전자책 관외대출의 법률적 근거로서 라이선스 계약에 반드시 포함되어야 할 요소들을 정리하였다. 이를 바탕으로 실제 계약 사례에서 이러한 요건들이 적절하게 반영되고 있는지 분석하였다. 2020년도부터 2022년까지 3개년 동안 나라장터를 통해서 입찰이 이루어진 계약 43건을 대상으로 그 실태를 점검하여 그 문제점을 지적하고 개선방안을 제안하였다.

• Journal of Information Processing Systems
• /
• 제16권4호
• /
• pp.760-773
• /
• 2020

When a crime occurs, the information necessary for solving the case, and various pieces of the evidence needed to prove the crime are collected from the crime scene. The tangible residues collected through scientific methods at the crime scene become evidence at trial and a clue to prove the facts directly against the offense of the suspect. Therefore, the scientific investigation and forensic handling for securing objective forensic in crime investigation is increasingly important. Today, digital systems, such as smartphones, CCTVs, black boxes, etc. are increasingly used as criminal information investigation clues, and digital forensic is becoming a decisive factor in investigation and trial. However, the systems have the risk that digital forensic may be damaged or manipulated by malicious insiders in the existing centralized management systems based on client/server structure. In this paper, we design and implement a blockchain based digital forensic management model using Hyperledger Fabric and Docker to guarantee the reliability and integrity of digital forensic. The proposed digital evidence management model allows only authorized participants in a distributed environment without a central management agency access the network to share and manage potential crime data. Therefore, it could be relatively safe from malicious internal attackers compared to the existing client/server model.

• 인터넷정보학회논문지
• /
• 제19권5호
• /
• pp.1-11
• /
• 2018

블록체인은 네트워크 내의 모든 참여자들이 공동으로 소유하고 검증함으로서 데이터의 조작을 방지하고 무결성 및 신뢰성을 보장하는 기술이다. 블록체인은 보안성 및 확장성 투명성을 특징으로 하며 전 세계에서 이용가능하기 때문에 최근 송금을 포함하여 물류 유통, IoT 등 다양한 분야에서 활용되고 있다. 그 중에서도 최근에는 블록체인을 기반으로 하여 다양한 형태의 계약을 체결하고 이행을 자동화할 수 있는 스마트 컨트랙트에 대한 관심이 높아지고 있다. 스마트 컨트랙트를 활용하면 계약 사항을 미리 프로그래밍하여 작성하고, 조건이 충족되면 즉시 시행되기 때문에 디지털 데이터에 대한 신뢰도를 더욱 높일 수 있다. 본 논문에서는 스마트 컨트랙트 설계에 관한 연구를 진행하면서 최근 이슈가 되고 있는 가상화폐의 불법적 자금 악용 등의 문제를 해결하는 방안으로써, 스마트 컨트랙트 설계 방안에 대한 연구를 진행하였다. 이를 통해 고객확인(KYC:Know Your Customer)과 자금세탁방지 과정을 스마트 컨트랙트를 활용해 적용해 보았으며, 자금세탁방지의 가능성을 확인 및 ASM(AML SmartContract mechanism) 설계 방안을 제시해보고자 한다.