• 농촌계획
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• 제24권4호
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• pp.121-134
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• 2018

By using the raw data of the 2015 Agriculture, Forestry and Fishery Consensus that surveyed the farmers engaged in agriculture, forestry and fishery in 2015, this study investigated the effects of the characteristics of the farms in Gangwon-do on the utilization of the digital devices, which was classified into computers usage only, smartphones usage only, both computers and smartphones usage, and no digital device usage. This study used the Multinomial Logit Model for the above purpose. Moreover, the IIA(Independence of Irrelevant Alternatives) method of the Multinomial Logit Model was analyzed to be suitable. Upon the result of the analysis, when all the other variables were constant in the average, the probability of choosing both computers and smartphones increased by 0.02% as the family member living together with the farm owner increased by 1 person. In addition, the farms with agricultural machineries have 0.03% increased probability of using smartphones to sell their agricultural products, when compared with the farms without agricultural machinery. Moreover, for the farms with high sales profit of the agricultural products, the probability of using computers and the probability of using smartphones increased by 0.04% and 0.01%, respectively, and the probability of using both computers and smartphones increased by 0.02%. On the other hand, for the farms affiliated with the agricultural organization, the probability of using both computers and smartphones increased by 0.17%, and the probability of using only smartphones and the probability of using only computers increased by 0.16% and 0.15%, respectively. In case of selling to the National Agricultural Cooperative Federation(NACF), the probability of using smartphones increased by 0.11% if all other variables were to be constant in the average. In particular, the farms participating in the agriculture-related industries have 1.09% increased probability of using computers, have 0.92% increased probability of using smartphones, and 0.85% increased probability of using both computers and smartphones. Therefore, the implications suggested based on the results of the analysis are as follows. First, the farms' choices of the digital devices are made independently. Hence, the future agricultural industry business platform establishment should necessarily consider the types of farms' choices of the digital devices in the future. Second, since the usage of digital devices has a generally positive influence on the farm household income, digital education to improve farmers' ability to use the digital devices should be urgently provided in order to improve the farm household income in the farms in Gangwon-do. Third, because the digital devices used to sell agricultural products differ depending on the age of the farm owner, it would be desirable to target the younger generation of the farm owners rather than establishing the agricultural industry business platform for the farms in the aged farm villages. Fourth, it would be advisable for the future agricultural business platform to consider the characteristics of agricultural products sales source.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권8호
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• pp.3243-3256
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• 2020

Recent years have shown a great interest of public in buying and selling of crypto/digital currency. With hundreds of digital currencies in financial market, bitcoin remains the most widely used, adapted, and accepted currency around the world. However, the critics of bitcoin still consider it a threat to modern day power usage. This paper discusses the important pitfalls, pros, and cons related to bitcoin's energy consumption. The paper begins by highlighting the flexibilities cryptocurrency can bring to online money transfers compared to traditional 'fiat' architecture. Then, the focus of the paper entirely remains on listing various facts related to bitcoin's energy utilization including a brief description of several emerging approaches for energy optimization. This paper is concluded by revealing key current challenges associated to bitcoin's energy usage.

• 디지털산업정보학회논문지
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• 제4권3호
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• pp.33-43
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• 2008

As internet is spreaded widely, the number of cyber terror using hacking and virus is increased. Also the hacking to the internet shopping mall go on increasing. If the large shopping mall is attacked by the hacker, a number of user's information are exposed to the hacker. The private information as like a resident registration number, user's real name, the date of user's birth, the mobile phone number, the office phone number / address, the home phone number / address and so on include the information. These information are used in the phishing e-mails / call and spam. And them are selling and buying maliciously. The large internet shopping mall 'auction' was hacked in April, 2008. After the incident, this paper suggested a countermeasures on the hacking for the internet shopping mall. The technical item and political item are included among the countermeasures. The countermeasures can protect the hacking not only the internet shopping mall but also the web sites basically.

• 한국정보기술학회 영문논문지
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• 제9권2호
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• pp.41-54
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• 2019

The cinema circuit is facing a digital, network, and mobile age, which expands non-theater accessibility to movies. Application platforms are situated as the most competitive business model that provide digital content such as games, music, books, and movies. Consumers can acquire content-related information not just offline, but online as well. Therefore, item information provided by application platforms is required. The information provided by application platforms consists of richly descriptive information such as storyline summary, consumer reviews, and related articles, while non-descriptive normative information covers data such as sales ranking, release date, genre, rental or purchase cost, domestic/foreign classification, consumer rating, number of consumer ratings, film rating, and so on. In this study, we surveyed and analyzed statistically the correlation between real-time sales ranking and other comparable non-descriptive information.

• International Journal of Computer Science & Network Security
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• 제22권2호
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• pp.424-435
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• 2022

When the owners of the intellectual property rights of digital content have lost control over it in the digital environment, there emerged fears that the intellectual property laws, especially copyright law, would not be effective as in the material (Offline ) world. The reason is that the digital environment helps to reproduce copies in high quality and at almost no cost, while copyright law protection has been limited to programs embedded in CDs. According to copyright laws, the owner of the program did not have the right to prevent buyers of the initial physical copy of the program from copying and reselling it to more than one individual without the permission of the original owner. As a result, business owners have invented the idea of licensing digital content and programs instead of selling them. They set out terms that serve their commercial interests regardless of their abuse to intellectual property laws or even the rules of the traditional contract to sell a material property. The abuse has resulted from the way those terms are concluded and the heavy rules that are unfair to consumer rights. Therefore, business owners insisted on dealing with the website and its programs and digital content as material property. Here raises the question of whether the website and its digital content are subject to the protection of copyright law or the rules of the traditional contract or licensing contracts. As the answer to this question affects the protection of consumer rights, is it possible to find a balance between it and the protection of the owners of digital programs' rights.That is what we will discuss in this paper.

• 한국실내디자인학회논문집
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• 제24권4호
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• pp.61-69
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• 2015

The purpose of study is not only analyzes the space images expressed with mass-produced furniture of the time and economy throughout the cover pages of IKEA published catalogs since 1951 to 2015 but also is set to deduct the characteristics of spatial expression regarding the usage of digital media applied catalogs which is to be published along with the 2015 catalog. Thus, throughout research of basic literature such as domestic and foreign academic material, books, and websites, the theoretical consideration of the meaning of IKEA's pursuit of selling manufactured furnitures is foregone. Based on the above, Analyze and organize periodically applied interior space in accordance with context characteristic by understanding the attribute of catalogue from expansion of media space applied new digital media. The importance of research on IKEA is not only the quality of products designed by them, but emotional aspect that deeply penetrate customer's actual daily life. Implication of digital media message to advertisement is a important role in society that shares digitalized information. IKEA's innovative attempt of connection to new world using traditional method of marketing expression and smart device may help people better understand space.

• 한국콘텐츠학회논문지
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• 제12권12호
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• pp.135-145
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• 2012

네트워크 카메라 영상을 저장하는 DVR(Digital Video Recorder) 디자인 개발 연구 사례이다. 지금까지의 영상저장장치(DVR)는 아날로그 영상을 디지털 방식으로 변환 압축하여 저장하는 방식이었지만 앞으로는 네트워크 카메라를 통해 디지털 영상을 그대로 저장하는 방식으로 발전해 가고 있다. 또한 영상압축방식도 기존방식에서 고화질영상압축효율, 데이터크기 최소화, 네트워크와의 호환성, 제품의 처리속도 등을 고려한 제품들이 개발추세에 있다. 이에 따라 2012년에는 전 세계 네트워크 카메라와 영상처리장치의 판매 비율이 기존의 아날로그 방식의 제품군들을 크게 추월할 것으로 예상되며 이러한 기술 환경과 시장의 요구 변화에 있어서 기능구현, 신뢰성확보 등과 같이 품질 중심의 제품개발과 DVR의 개발 컨셉은 대형화되고 선명한 화질과 압축 기술의 향상으로 인하여 현재와는 다른 새로운 디자인을 요구하고 있으며, 제조사들은 사용자 중심의 제품디자인에 새로운 컨셉 방향으로 연구 개발하는 추세에 있다.

• 융합정보논문지
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• 제10권1호
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• pp.13-21
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• 2020

인터넷 기술 및 디지털 콘텐츠 편집 소프트웨어의 발전으로 인해 점점 많은 수의 1인 미디어 창작자(크리에이터)들이 다양한 콘텐츠들을 생산하고 공유하고 있다. 그러나 1인 미디어 활성화를 위해서는 콘텐츠의 사용, 판매, 편집, 재가공 등 다양한 거래 유형별 이용권한(라이선스) 생성과 함께 콘텐츠 사용 모니터링, 라이선스 거래 추적 등의 핵심 기술이 1인 미디어 플랫폼에서 지원되어야 한다. 본 논문에서는 ODRL(Open Digital Rights Language) 온톨로지(ontology)에 기반하여 다양한 수준의 디지털 콘텐츠 이용권한 및 이용추적을 명세할 수 있는 Policy 클래스 확장 모델을 정의하고 모델의 성능을 평가하기 위한 사용자 인터페이스 프로토타입을 구현하였다. 본 논문의 제안 모델은 개인 창작물 공유 플랫폼의 라이선스 관리 모듈 구현의 핵심 요소로 참조될 수 있다.

• 디지털산업정보학회논문지
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• 제11권3호
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• pp.219-230
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• 2015

It is difficult to make plans about the production schedule and volume of seasonal products due to the huge uncertainty in the prediction of their demands, which is why the amounts of carryover seasonal products increase after the peak season. Traditional models fail to meet the important requirements of production and stock plans related to the enhanced efficiency of logistics system due to the reduced value of carryover products by the disposal based on large discounts and deterioration, which poses considerable difficulties with actual problem solving. This study examined the stages of product storage from the specialized factory warehouses during a low season through the stores and the warehouses of local distribution centers during a high season to stock disposal and carryover product warehouses after a high season. The study developed a model for logistics rationalization plans to minimize carryover products by advance selling new products by subscription during a low season in anticipation of high season demands, increasing the accuracy of demands prediction, and making stable production plans, as well as demonstrated its excellence through numerical analysis.

• 한국디지털건축인테리어학회논문집
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• 제10권2호
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• pp.5-12
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• 2010

Unlike housing development project that can ensure profit by selling built units, a hotel development depends on long-term business operation to be profitable due to characteristics of service industry. The expected cash flow has substantial uncertainty depending on room occupancy rate and room charge. Thus, even after construction is complete, business risk tends to rise. It is necessary to ensure strategic response to uncertainty in future value of a hotel. The objective of the study is to explore strategic measures to deal with risk and uncertain future value in hotel development project by adopting abandonment option, which is a type of real options. The case in analysis had sevenyears of project period: Two years for construction, and five years for operation; a plan was made to sell the hotel after five years' of operation. For the research purpose, option value ofrecoverable investment amount was estimated, and value of abandonment option was KRW 124.921 billion. When abandonment option is applied, the project value was deemed to be KRW 120.592 billion. Generally, the amount of loss is enormous when a real estate project like a hotel development fails, and therefore, application of option is expected to be an effective measure to leverage uncertainty of a project.