• Journal of the Korea Society of Computer and Information
• /
• v.7 no.1
• /
• pp.161-173
• /
• 2002

The increasing disposable time through advancing information has come to make the tourism industry as well as the information communication industry glow in the 21st century We cannot make rational decision without proper guide information. It is impossible to anticipate tourism Products which are invisible products consisting of a variety of basic combinations of products. Tourists are getting dissatisfied with tourism experts' distorted guidance every year. A recent survey shows that the current tourism information system can't meet the need of tourists who are informative and individualized. This paper presents tourism information system that offers the most appropriate tour courses depending on the tastes of tourists by utilizing expert system, artificial intelligent applied technology. This paper is the first attempt to maximize comsumer satisfaction by developing the intelligent agent system that is able to reflect the traits of individualized customers' in the tourism industry The establishment of this system will contribute to activating the tourism industry, ultimately, by decreasing inconveniencies and tour schedules appropriate to the purpose of individual tours.

• Korean Journal of Agricultural Science
• /
• v.46 no.2
• /
• pp.315-322
• /
• 2019

In this study, the contents of ${\beta}$-carotene and cholesterol were evaluated in various types of agricultural and processed foods (vegetables, legume products, dairy products, and eggs). Certified reference material (CRM) with an assigned value was used for the validation of the ${\beta}$-carotene and cholesterol analytical methods. High recoveries (accuracy) of ${\beta}$-carotene (96%) and cholesterol (97%) were obtained from the quantitative analysis of the CRM, with a relative standard deviation (%) of 1.86 and 3.35% for the ${\beta}$-carotene and cholesterol, respectively. Vegetables contained relatively high concentrations of ${\beta}$-carotene (raw Toona sinensis, $1650.97{\mu}g/100g$, a raw small onion, $879.09{\mu}g/100g$, and a raw lettuce stem, $591.89{\mu}g/100g$). The ${\beta}$-carotene values in dried chickpeas ($22.94{\mu}g/100g$) and dried brown lentils ($21.98{\mu}g/100g$) were similar. The highest ${\beta}$-carotene value among the analyzed dairy products was found in banana milk ($234.21{\mu}g/100g$) while other flavored products (strawberry milk and chocolate milk) did not contain any ${\beta}$-carotene. Furthermore, ${\beta}$-carotene was not detected in goat milk and high calcium milk in this study. With regard to cholesterol among the analyzed samples, the highest cholesterol value was found in egg yolk (629.30 mg/100 g), and cooking methods (boiling and frying) had little effect on the cholesterol levels of eggs. In addition, the cholesterol content in vanilla ice cream was 28.77 mg/100 g which was the highest value among the analyzed dairy products.

• The Journal of Advanced Prosthodontics
• /
• v.12 no.6
• /
• pp.361-368
• /
• 2020

PURPOSE. The present study aimed to evaluate the accuracy of a desktop scanner and intraoral scanners based on the volumetric dimensions of a complete arch. MATERIALS AND METHODS. Seven reference models were fabricated based on the volumetric dimensions of complete arch (70%, 80%, 90%, 100%, 110%, 120%, and 130%). The reference models were digitized using an industrial scanner (Solutionix C500; MEDIT) for the fabrication of a computer-aided design (CAD) reference model (CRM). The reference models were digitized using three intraoral scanners (CS3600, Trios3, and i500) and one desktop scanner (E1) to fabricate a CAD test model (CTM). CRM and CTM were then superimposed using inspection software, and 3D analysis was conducted. For statistical analysis, one-way analysis of variance was used to verify the difference in accuracy based on the volumetric dimensions of the complete arch and the accuracy based on the scanners, and the differences among the groups were analyzed using the Tukey HSD test as a post-hoc test (α=.05). RESULTS. The three different scanners showed a significant difference in accuracy based on the volumetric dimensions of the complete arch (P<.05), but the desktop scanner did not show a significant difference in accuracy based on the volumetric dimensions of the complete arch (P=.808). CONCLUSION. The accuracy of the intraoral scanners was dependent on the volumetric dimensions of the complete arch, but the volumetric dimensions of the complete arch had no effect on the accuracy of the desktop scanner. Additionally, depending on the type of intraoral scanners, the accuracy differed according to the volumetric dimensions of the complete arch.

• Asia pacific journal of information systems
• /
• v.18 no.1
• /
• pp.1-23
• /
• 2008

As managing customer relationship gets more important, companies are strengthening information service using multi-channels to their customers as a part of their customer relationship management (CRM) initiatives. It means companies are now accepting such information services not as simple information -delivering tools, but as strategic initiatives for acquiring and maintaining customer loyalty. In this paper, we attempt to validate whether or not such various information services would impact on organizational performance in terms of CRM strategy. More specifically, our research objective is to answer the next three questions: first, how to construct the instruments to measure not information quality but information service quality?; second, which attributes of information service quality can influence corporate image and customer loyalty?; finally, does each information service type have unique characteristics compared with others in terms of influencing corporate image and customer loyalty? With respect to providing answers to those questions, the previous studies had been limited in that those studies failed to consider the variety of types of information service or restricted the quality of information service to information quality. An appropriate research model answering the above questions should consider the fact that most companies are utilizing multi channels for their information services, and include the recent strategic information service such as customer online community. Moreover, since corporate information service could be regarded as a type of products or services delivered to customer, it is necessary to adopt the criteria for assessing customer's perceived value when to measure the quality of information service. Therefore, considering both multi-channels and multi-traits may enable us to tell the detailed causal routes showing which quality attributes of which information service would affect corporate image and customer loyalty. As information service channels, we include not only homepage and DM (direct mail), which are the most frequently applied information service channels, but also online community, which is getting more strategic importance in recent years. With respect to information service quality, we abstract information quality, convenience of information service, and timeliness of information service through a wide range of relevant literature reviews. As our dependant variables, we consider corporate image and customer loyalty that both of them are the critical determinants of organizational performance, and also attempt to grasp the relationship between the two constructs. We conducted a huge online survey at the homepage of one of representative dairy companies in Korea, and gathered 367 valid samples from 407 customers. The reliability and validity of our measurements were tested by using Cronbach's alpha coefficient and principal factor analysis respectively, and seven hypotheses were tested through performing correlation test and multiple regression analysis. The results from data analysis demonstrated that timeliness and convenience of homepage have positive effects on both corporate image and customer loyalty. In terms of DM, its' information quality was represented to influence both corporate image and customer loyalty, but we found its' convenience have a positive effect only on corporate image. With respect to online community, we found its timeliness contribute significantly both to corporate image and customer loyalty. Finally, as we expected, corporate image was revealed to provide a great influence to customer loyalty. This paper provides several academic and practical implications. Firstly, we think our research reinforces CRM literatures by developing the instruments for measuring information service quality. The previous relevant studies have mainly depended on the measurements of information quality or service quality which were developed independently. Secondly, the fact that we conducted our research in a real situation may enable academics and practitioners to understand the effects of information services more clearly. Finally, since our study involved three different types of information service which are most frequently applied in recent years, the results from our study might provide operational guidelines to the companies that are delivering their customers information by multi-channel. In other words, since we found that, in terms of customer loyalty, the key areas would be different from each other according to the types of information services, our analysis would help to make decisions such as selecting strengthening points or allocating resources by information service channels.

• Analytical Science and Technology
• /
• v.23 no.3
• /
• pp.240-246
• /
• 2010

A technique for the determination of trace Cu(II) in various real samples by FAAS after the column preconcentration onto p-dichlorobenzene-SA adsorbent, which is microcrystalline p-dichlorobenzene loaded with salicylaldoxime (SA) has been developed. Several experimental conditions such as pH of the sample solution, the amount of chelating agent salicylaldoxime, the amount of adsorbent p-dichlorobenzene-SA, and flow rate of sample solution were optimized. The interfering effects of various concomitant ions were investigated. $CN^-$ interfered more seriously than any other ions. However, the interference by $1\;{\mu}g\;mL^{-1}\;CN^-$ could be overcome completely by controlling the concentration of Ni(II) to $20\;{\mu}g\;mL^{-1}$. The linear range, correlation coefficient ($R^2$) and detection limit obtained by this technique were $3.0\sim100\;ng\;mL^{-1}$, 0.9901, and $3.1\;ng\;mL^{-1}$, respectively. For validating this technique, the aqueous samples (wastewater, reservoir water and stream water) and the food samples (orange juice, fresh egg and skim milk) were used. Recovery yields of 93~104% were obtained. These measured mean values were not differents from ICP-MS data at 95% confidence level. The good results were obtained from the experiments using the rice flour certified reference material (CRM) sample. Based on the experimental results, it was found that this technique could be applied to the preconcentration and determination of Cu(II) for various real samples.

• Culinary science and hospitality research
• /
• v.8 no.1
• /
• pp.1-21
• /
• 2002

A study is on the market ing strategy which applied the web site for family restaurant. The internet marketing that the firm uses to attract consumer needs and it can be said to be the strategic effort to cope with dynamic environmental change in the market with strategic flexibility which has competitive advantage and increase its profitablelity. This study establish an internet marketing strategy plan and it presented. First, it constructs a data base using CRM and it manages with to create the benefit model. Second, it constructs the trusted relationship of the customer using Permission marketing. Third, the virus marketing is effect ive to create customers in short duration. Forth, e-mai1 marketing for target customer is also effective Fifth, experienced marketing provides the good experience and an immersion. Sixth, tie-in marketing which co-operate with the other company is magnifies a category of customer therefore this study about internet marketing action will be hopefully continued.

• Agribusiness and Information Management
• /
• v.1 no.1
• /
• pp.19-36
• /
• 2009

1999년 이후 농업인 홈페이지 지원사업 실시 이래 2008년까지 농업인이 운영하는 홈페이지는 전국적으로 1만개소에 달하고 있다. 전자상거래를 성공적으로 운영하고 있는 농업인들의 경우 고객관리에 대한 중요성 인식도가 높고, 이를 관리하기 위한 다양한 프로모션을 전개하고 있다. 이번 연구에서는 농촌진흥청에서 진행하고 있는 농업인 전자상거래 사업에 참여하고 있는 농업인을 대상으로 하여 이들의 고객관리에 대한 필요성 인식정도, 고객확보를 위한 활동, 고객관리의 방법, 고객관리의 유형과 기준, 확보된 고객의 관리를 위한 활동 등을 조사하였다. 농업인들은 전자상거래를 수행하면서, 고객과 직접 접하게 되고, 상품의 판매과정에서 고객관리의 필요성을 높게 인식하고 있으며, 블로그 개설 등 온라인 활동으로 폭을 넓혀가고 있음을 확인할 수 있었다. 하지만, 상당수의 농업인들이 고객관리의 필요성 인식에 비해 이를 실천할 구체적 활동방식과 실행 방법에 대해 구체적이지 못하기 때문에, 정부의 시스템 지원과 교육사업에 있어서 새로운 접근이 필요함을 보여주고 있다.

• 한국IT서비스학회:학술대회논문집
• /
• 2006.05a
• /
• pp.489-496
• /
• 2006

e-비즈니스 시스템 도입시 성공요인에 대한 많은 연구가 진행되어 왔다. 기존의 많은 연구에서 시스템 도입이전, 개발단계 혹은 도입초기의 핵심성공요인에 대한 제안은 많으나 시스템의 도입이후 사용 연한 즉 시스템 연령(system age)이 증가하는 과정에서 단계별 성공요인에 대한 연구는 많지 않은 실정이다. 본 연구는 e-비즈니스 시스템의 핵심성공요인이 시스템 연령의 증가에 따라 달라질 수 있다는 가정 하에 시스템 연령별 성공요인의 변화를 탐색하고자 하였다. 연구를 위한 표현으로 48개 기업을 대상으로 315명의 설문응답 결과를 분석하였다. 대상기업은 e-비즈니스시스템(ERP, SCM, CRM)을 사용 중인 기업으로 하였으며, 시스템 사용자와 개발자를 중심으로 조사를 실시하였다. 시스템 연령 구분은 시스템 도입 후 사용기간이 1년 미만(1기), 1-2년 미만(2기), 2-4년 미만(3기), 4년 이상(4기)으로 구분하여 분석하였다. 분석결과 시스템 연령별 조직의 성과에 유의한 영향을 미치는 요인의 종류가 달라지는 것을 확인하였다. 본 연구의 결과는 기업들이 시스템 도입이후 운영과정에서 시스템 성과를 극대화 하기 위해 역량을 집중해야할 분야가 무엇인지에 대한 시사점을 줄 수 있을 것이다.

• Journal of Radiation Protection and Research
• /
• v.36 no.4
• /
• pp.223-229
• /
• 2011

Ba is the most useful element to get the $Ba(Ra)SO_4$ precipitate. However, when the high concentrations of ions such as sulfate, calcium are existed in the leachate of phosphogypsum stack, it is difficult to get the $Ba(Ra)SO_4$ precipitate. Since this reason, the developed method for the Ba coprecipitate using EDTA was performed to determine the $^{226}Ra$ concentration in the high sulfate sample. The average concentration of $^{226}Ra$ in a leachate of phosphogypsum using this method was 0.102 $Bq{\cdot}kg^{-1}$ and the minimal detectable activity is 3.4 $mBq{\cdot}kg^{-1}$. The $mBq{\cdot}kg^{-1}$ method was 0.102 $Bq{\cdot}kg^{-1}$ and the minimal detectable activity is 3.4 $mBq{\cdot}kg^{-1}$. The $^{226}Ra$ stock solution and the CRM (Certified Reference Material) were analyzed to verify this method. In analyzed $^{226}Ra$ stock solution, bias with added concentration was approximately 1% and the correlation curve between $^{226}Ra$ concentration in simulated standard sample and measured $^{226}Ra$ concentration showed good agreement with a correlation coefficient ($R^2$) of 0.99. In analyzed CRM, maximum bias with reference value was 5.8% (k=1) and the analytical results were in good agreement with the reference value.

• The Journal of Information Systems
• /
• v.20 no.1
• /
• pp.41-74
• /
• 2011

최근 수년간 모바일 상거래는 점점 더 많은 관심을 끌고 있다. 그것은 도달성과 이동성이라는 점에서 전자상거래에 비해 강점을 지니고 있어 모바일 상거래는 주목받는 이슈가 되었다. 모바일 상거래의 현황을 검토하고 미래를 조망한 문헌을 연구해 보는 것은 흥미로운 시도이다. 이 연구는 Varshney and Vetter(2002)와 Ngai and Gunasekaran(2007)가 제시한 분류기준을 참조하되 세부내용을 일부 수정하여 모바일 상거래의 이론과 연구, 모바일 상거래의 애플리케이션과 사례, 무선 사용자 인프라스트럭처, 모바일 미들웨어, 무선 네트워크 인프라스트럭처 등 5가지 대분류기준에 따라 선행연구들을 검토하였다. 여기에는 최근 부각되는 모바일러닝, 모바일라이브러리, M-CRM과 M-SCM 같은 주제도 포함하였다. 연구결과 많은 논문들이 모바일 상거래의 이론과 연구 그리고 모바일 상거래의 애플리케이션과 사례를 다루고 있었다. 그리고 모바일 상거래의 성공은 서로 다른 애플리케이션의 강점과 필요한 기술을 잘 수용한 결과라는 점을 보여주었다. 마지막으로 모바일 상거래의 현황과 미래 방향에 관한 함의를 기술하였다.