• 한국정보시스템학회지:정보시스템연구
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• 제26권2호
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• pp.1-23
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• 2017

Purpose Facebook is a social network service that has the highest number of Monthly Active Users around the world. Hence, marketers have selected Facebook as the most important platform to get customer engagement. With respect to the customer engagement enhancement, the most popular and engaging post type in the Facebook brand fan pages related to what was usually classified as 'sweepstakes'. Sweepstakes refer to a form of gambling where the entire prize may be awarded to the winner. Which makes customers more engaged with the brand. This study aims to explore sweepstakes-oriented social media marketing approaches based on the application of big data analytics. Design/methodology/approach we collect sweepstakes data from each company based on the data crawling from the Facebook brand fan pages. The output of this study explains how companies in each category of FCB grid can design and apply sweepstakes for their social media marketing. Findings The results show that they have one thing in common across the four quadrants of FCB grid. Regardless of the quadrants, most frequently observed type is 'Simple/Quiz or Comments/Quatrains [event type of sweepstakes] + Gifticon [type of reward prize] + Image [type of message display] + No URL [Link toother website] +Single-Gift-Offer [type of reward prize payment]'. So, if the position of the brand is hard to be defined by the FCB grid model, then this general rule can be applied to all types of brands. Also some differences between the quadrants of the FCB grid were observed. This study offers several research implications by analyzing Sweepstakes-oriented social media marketing approaches in Facebook brand fan pages. By using the FCB grid model, this study provides guidance on how companies can design their sweepstakes-oriented social media marketing approaches in the context of Facebook brand fan pages by considering their context.

• 한국전자거래학회지
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• 제4권1호
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• pp.87-101
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• 1999

To operate the automatic devices of manufacturing process more effectively and to solve the needs of the resource sharing, network technology is applied to the control devices located in common manufacturing zone and operated by connecting them. In this paper, functional standard of the network layers are set as physical and data link layer of IEEE 802.2, 802.4, and VMD application layer and ISO-CIM reference model. Then, they are divided as minimized architecture, designed as group objects which perform group management and service objects which organizes and operates the group. For the stability in this network, this paper measures the variation of data packet length and node number and analyzes the variated value of the waiting time for the network operation. For the method of the analysis, non-exhausted service method are selected, and the arrival rates of the each data packet to the nodes that are assumed to form a Poission distribution. Then, queue model is set as M/G/1, and the analysis equation for waiting time is found. For the evalution of the performance, the length of the data packet varies from 10 bytes to 100 bytes in the operation of the group management network, the variation of the wating time is less than 10 msec. Since the waiting time in this case is less than 10 msec, response time is fast enough. Furthermore, to evaluate the real time processing of the group management network, it shows if the number of nodes is less than 40, and the average arrival time is less than 40 packet/sec, it can perform stable operation even taking the overhead such as software delay time, indicated packet service, and transmissin safety margin.

• 한국수학교육학회지시리즈A:수학교육
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• 제58권3호
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• pp.383-401
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• 2019

고등학교의 통합 교육에서는 각 교과 간의 공통 개념이나 아이디어를 중심 내용으로 다루어야 하기 때문에, 본 연구는 이미 학습한 과학적 개념인 'Mendel의 유전 법칙'을 이용하여 수학을 중심으로 한 통합 수업이 진행될 수 있도록 자료를 개발하고, 개발된 자료에 대하여 CVR 검증을 통하여 전문가 타당성을 확인한 연구이다. 선행연구에 의하면 중학교에서 학습한 과학 개념 중에서 수학과 연계가 비교적 적은 것으로 알려진 내용 중 Mendel의 유전 법칙을 대상으로 하여 연구를 진행하였다. 수학과 다른 과목을 통합한 수업에서는 두 과목 사이의 공통 연결고리가 풍부할수록 수업효과가 좋기 때문에, 본 연구에서는 확률 영역 이외에도 통계 영역의 개념까지 포함하여 조사를 진행하였으며, 이에 근거하여 1차시(100분) 수업에 해당하는 수업 자료를 개발할 수 있었다.

• Bulletin of the Korean Chemical Society
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• 제34권12호
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• pp.3602-3608
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• 2013

Saccharomyces cerevisiae, which is a common species of yeast, is by far the most extensively studied model of a eukaryote because although it is one of the simplest eukaryotes, its basic cellular processes resemble those of higher organisms. In addition, yeast is a commercially valuable organism for ethanol production. Since the yeast data can be extrapolated to the important aspects of higher organisms, many researchers have studied yeast metabolism under various conditions. In this report, we analyzed and compared metabolites of Saccharomyces cerevisiae under salt and pH stresses of various strengths by using two-dimensional NMR spectroscopy. A total of 31 metabolites were identified for most of the samples. The levels of many identified metabolites showed gradual or drastic increases or decreases depending on the severity of the stresses involved. The statistical analysis produced a holistic outline: pH stresses were clustered together, but salt stresses were spread out depending on the severity. This work could provide a link between the metabolite profiles and mRNA or protein profiles under representative and well studied stress conditions.

• International Journal of Contents
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• 제10권2호
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• pp.9-17
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• 2014

Since vehicles' trajectories are so complex and dense traffic changes in nature frequently, the VANET (Vehicles Ad-hoc Network), using Omni-directional Antenna, has many channel collisions (or overlapping) on Data Link phrases (MAC layers). It is not easy to keep a good seamless communication status for VANET because of its unpredictable network environment. Among VANET research, Directional Antenna have been proposed as one of the most common systematical solutions to reduce (or to mitigate) this miss-communication problems by narrowing communicational ranges and making use of its customized error-detection process. However, even though Directional Antennas help VANET keep good seamless communication, many VANET researchers have reported that Directional VANET still has miss-communicational problems - this has lead to problems like 'Directional Hidden Terminal Problem', 'Deafness', 'Un-accuracy Lobe Scopes' and 'High Deployment Cost' being reported in various papers. To establish well-organized design assessments for a good Directional VANET MAC protocol to overcome these problems, we rearranged and grouped current Directional VANET' qualitative criteria from several current survey papers using these categories- 'Directional Discovery', 'Directional Forwarding' and 'Directional Handover'. In addition, based on the results of the following analysis, we show the essential design concerns that need to be looked at in order to develop a well-designed Directional-VANET MAC protocol.

• 한국기록관리학회지
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• 제14권2호
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• pp.61-82
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• 2014

기록전거레코드는 이용자가 기록물에 접근하고, 기록물을 이해하는 것을 지원한다. 그런데 기록물의 생산자는 기록 외에 다른 출판물의 생산자이기도 하며, 이용자도 정보에 통합적으로 접근하기를 원한다. 게다가 기록전거레코드와 서지제어를 위한 전거레코드는 상이한 특성을 지니면서도 상호 연계가능한 공통점을 지니고 있다. 이에 본 연구에서는 기록전거레코드를 구축하거나 확장하는데 기존의 전거레코드를 반입하여 이용하고, 확장된 기록전거레코드를 다시 공유할 수 있도록 위키피디아와 같은 웹 환경에 반출하는 방안을 제안하였다. 그리고 시범적인 연계 및 공유결과를 바탕으로 도출된 시사점과 향후 과제를 제안하였다.

• 한국군사과학기술학회지
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• 제15권6호
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• pp.770-778
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• 2012

In this paper, we propose a multi-path construction scheme to improve the survivability of a multicast session in military hybrid networks. A military hybrid network consists of a static backbone network and multiple mobile stub networks where some nodes are frequently susceptible to be disconnected due to link failure and node mobility. To improve the survivability of multicast sessions, we propose a construction scheme of ${\kappa}$ redundant multi-paths to each receiver. In order to take account of different characteristics of static and mobile networks, we propose quite different multi-path setup approaches for the backbone and stub networks, respectively, and combine them at the boundary point called gateway. We prove that our proposed scheme ensures that each receiver of a multicast session has ${\kappa}$ redundant paths to the common source. Through simulations, we evaluate the performance of the proposed schemes from three aspects : network survivability, recovery cost, and end-to-end delay.

• 패션비즈니스
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• 제22권6호
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• pp.25-38
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• 2018

Recently, issues on the environment, which have become key bottlenecks relative to sustainable economic development, have generated common concern. However, relatively scant research has been devoted to consideration of relations between consumers' environmental concern, green fashion advertisement value, and green consumption. In this study, using structural equation modeling (SEM), effects of environmental concern, perceived green fashion advertisement value, and attitude towards green fashion advertisements, on ecological purchases and their interrelationships are investigated. A model is constructed to link aforementioned constructs. Data, was collected through a questionnaire-based online survey (www.sojump.com) of 260 Korean consumers and 260 Chinese consumers. Findings suggest that environmental concern can improve their perception of green advertisement value. One of the findings showed strong positive relationship among green advertisement value, positive attitude, and purchase intention towards green fashion advertisement, while environmental concern negatively influenced their attitude towards green fashion advertisements. It suggests that if companies adopt green advertising strategies, environmentally-conscious consumers are willing to pay more, to purchase green fashion goods in to satisfy their needs. We should put more effort in educating consumers about environmental issues, to raise the level of environmental awareness and satisfy their concerns relative to green fashion goods. Conversely, there is significant positive relationship with the moderating effect of consumers' nationality in all paths, so results above would make significant contributions to green literature, and would also contribute to advertisement strategy implications as well. Especially fashion marketers, an use accurate and fair environmental claims in their advertisements to increase sale and profits.

• 융합정보논문지
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• 제9권1호
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• pp.68-73
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• 2019

본 연구는 스마트분전반 MG(;Micro-Grid) 구성의 중심축으로 모듈형 하이브리드 발전원과 DC버스를 통하여 링크를 갖으며 표준소켓을 사용하여 불법연결을 감지 차단하는 기능을 부여하고, 전력계통의 안정화를 달성함을 목적으로 한다. 전력변환장치, 스마트분전반, 통합제어시스템의 개발과 효율적인 수요관리가 필요하며, MG 전체시스템과의 호환성이 절실하다. 이는 공통 전력 연결 규약으로 안전하고 누구나 연결을 쉽게 할 수 있는 하이브리드발전시스템으로 데이터 관리가 용이해지고 다양한 제조사의 시스템 확대설치에 대한 대비가 가능하다.

• 정보관리학회지
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• 제35권3호
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• pp.101-121
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• 2018

본 연구는 연구논문의 논리적 의미 구조 메타데이터 항목에 해당하는 데이터에 담겨 있는 문장의 구성에 따라 시스템에서 적절한 항목으로 자동 식별 처리될 수 있도록 하는, 문장의미론(Sentence Semantics)적 분석 방법을 제안하고자 하는 목적으로 수행되었으며, 의미 구조 메타데이터 항목 중 'Research Objectives'와 'Research Outcomes'에 해당하는 연구 논문 문장의 구조를 어절 수, 접속어 종류, 다수 출현한 단어들의 문장 내 역할, 문장에서 다수 출현한 어미 형태 등을 기준으로 분석해 정리하였다. 연구 결과, 문장들의 어절 수는 'Research Objectives'는 평균 38개, 'Research Outcomes'는 평균 212개로 나타났으며, 접속어의 경우 'Research Objectives'는 인과-순접-대등-환언/요약 관계를 나타내는 접속어 순으로, 'Research Outcomes'는 인과-대등-순접-환언/요약 관계를 나타내는 접속어 순으로 많이 출현한 것으로 파악되었다. 출현빈도가 높은 분석 대상 단어들은 각각 문장 내에서 주어, 목적어, 서술어 역할 등으로 사용되고 있었으며, '역할'이나 '요인', '관계'는 목적이나 결과 부분 모두에서 비슷한 역할을 담당하고 있었지만 '연구'는 같은 단어라도 연구의 목적 부분과 결과 부분에서 사용되는 역할에 차이를 보였다. 마지막으로 문장 내 동사의 어미는 'Research Objectives'에서 '~고자'와 '~였다', 'Research Outcomes'에서 '~었다', '~있다', '~였다'가 많이 출현하였다. 본 연구는 연구자의 학술적 이해형성을 지원하기 위해 연구논문이 담고 있는 공통된 논리적 의미를 반영한 메타데이터 요소의 자동 식별과 입력 방안을 제시하는 데 활용할 수 있는 기초 연구로서 의의가 있다.