• Electronics and Telecommunications Trends
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• v.6 no.3
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• pp.148-174
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• 1991

본 고에서는 고도 정보 사회의 발달에 따라 업무의 신속성, 사용의 편리성, 설치의 융통성 그리고 사용자의 이동성 등의 필요에 의해 급격한 수요 증가가 예상되는 무선 데이터 통신 서비스의 현황에 대해 개괄적으로 정리하였다. 무선 데이터 통신 서비스 분야로는 패킷무선(packet radio), trunked 시스팀, 셀룰러(cellular) 시스팀 그리고 무선 LAN(Local Area Network) 등을 중심으로 하였으며, 미국, 일본 그리고 유럽을 검토 대상국가로 하였다.

• Korean Chemical Engineering Research
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• v.61 no.1
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• pp.68-73
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• 2023

Smoke masks have attracted great interests and have been supplied widely for the improvement of the safety during fire evacuation. However, there is not sufficient research on the practical utility, certification status and easy-donning about commercial smoke masks, therefore it is difficult to determine the actual usefulness of the smoke masks. In this study, we conducted a survey on users' perceptions and experiences about the smoke masks, and investigated the status of certification of 54 commercial smoke masks. We also performed donning tests and examined degrees of discomfort for 4 types of the smoke masks. Although 22% of 235 respondents had experienced the smoke masks before the test, and 23% of the respondents did not know the smoke masks, 93% of the respondents expected that the smoke masks could protect users from fire smokes and toxic gases. It was found that 41% of the commercial smoke masks did not certify according to domestic or overseas performance standards. Most certification standards have not effectively regulated maximum wearing time for the smoke masks. Only ASTM E 2952 and KFIS 024 had specific standards for the maximum wearing time of 30 s. As a result of donning tests for 4 types of smoke masks, the wearing time of the hood-type mask and self-contained smoke mask exceeded 30 s, therefore these types of smoke masks might increase the required safe evacuation time. On the other hand, it was also found that short education about the donning could reduce the wearing time by 19% and numbers of improper wearing by 89%.

• Journal of Korean Society of Transportation
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• v.28 no.5
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• pp.65-75
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• 2010

The objective of this paper is to quantify economic values of parcel service attributes (safety, reliability, quickness, and kindness and customer service) using the contingent choice method and to investigate impact factors (such as sex, age, and education), which influence choice of desirable parcel services. As empirical results, the marginal willingness-to-pay for multiple attributes of parcel service is calculated as about 2,349.6 KRW for the safety attribute, about 829.3 KRW for the reliability attribute, about 588.5 KRW for the quickness attribute, and about 358.8 KRW for the kindness and customer service attribute, according to the estimation model without covariates. The overall results indicate that the safety attribute ranks highest among parcel service attributes, followed by the reliability attribute, quickness attribute, and kindness and customer service attribute. These results can be useful in the decision-making process for establishing desirable pricing policies for parcel service.

• The Journal of the Korea Contents Association
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• v.19 no.8
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• pp.490-499
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• 2019

Face recognition payment service is an innovative payment method based on face recognition technology and is emerging in China now. Various industries regarding unmanned sales are likely to utilize this face recognition payment service in the future. This study investigated the factors influencing the usage intention of Chinese consumers who have experience using face recognition service. We used questionnaire survey and analysis with SPSS and AMOS. According to the results of the study, conclusions are as followed. First, consumers' attitudes toward the characteristic of face recognition payment service, which are non-contact and non-coercion, positively affected perceived usefulness. Second, the rapidness of the facial recognition payment among the recognition, the security and the rapidness of this service affected the ease of use. Third, social influences such as subjective norms also influence the intention to use. Fourth, the increase of the level of self-expression awareness and the intention of using face recognition payment service are confirmed. Through these results, the implications for design and communication of related innovative services were discussed.

• The Journal of the Korea Contents Association
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• v.22 no.9
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• pp.298-307
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• 2022

This study, through the potential research variables constituting smartphine shopping utilization, affects to some extent the social relevance and rapid adaptability of technology according to the cognitive age level perceived by customers. Research hypotheses and research models were established and tested to verify the research results on how they affect brand loyalty within the segmented market to which they belong. The purpose of this study is as follows. First, it was verified through the degree of casual relationship between smartphone shopping usage and potential research variables of innovation, convenience, usefulness, and hedonism that compose it, on the cognitive age level. Second, according to the cognitive age level perceived by customers themselves, it was verified through the degree of casual relationship between the mediators of social relevance and technology quick adaptability. Third, the casual relationship between social relevance, technology quick adaptability, and brand loyalty was verified according to the cognitive age level. Fourth, a theoretical study was conducted on the conceptual and operational definitions of the research variables of the research model of this study.

• Pediatric Infection and Vaccine
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• v.8 no.1
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• pp.90-93
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• 2001

Purpose : The accurate diagnosis and proper treatment of group A streptococal infection should be emphasized concerning about possible development of late sequelae, such as acute rheumatic fever and acute glomerulonephritis. Inadequate & improperance of antobiotics have resulted in increased number of antibiotic-resistant bacteria. We would like to know the clinical usefulness of rapid strep test compared with conventional throat culture in out-patients with acute pharyngotonsilitis. Methods : From Sep. 2000. to Jan. 2001, rapid strep test(LINK 2 Strep A, USA) & throat culture were taken from 87 patients with clinically suspect pharyngotonsilitis from Masan Fatima hospital & kyunghee university hospital. Results : Of 87 cases with pharyngitis, 39 cases proved to have group A streptococci by throat culture. The positive predictive value of rapid test was 92.3%(36 of 39 cases) and sensitivity test was 81.8%(36 of 44 cases). The specificity of rapid test was 93.0%(40 of 43 cases) and negative predictive value was 83.3%(40 of 48 cases). Conclusion : The positive predictive value & specificity of rapid strep test is high. And so, this test will give the pediatricians practical guidance of antibiotic use in patients with pharyngitis. But more efforts should be made to prevent antibiotics abuse and correct diagnosis of pharyngitis.

• Journal of the Korean Society for Library and Information Science
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• v.34 no.4
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• pp.5-26
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• 2000

The purpose of this study was to measure performance of university libraries, especially investigating the components of service quality and their relationship to the customer satisfaction. The result of the study was summarized as follows: First, the factors on satisfaction of library service revealed 12 factors such as access of information, quality of employees, suitable collections, issues related to civil petitions, equipments and facilities, timeliness, operating hours, use of information technology, library user education, reference service, public relation and individual service. Second, the factors of library service on customer satisfaction showed the following primary factors: suitable collections, issues related to civil petitions, access of information, equipments and facilities, timeliness, public relation, reference service, operating hours, and individual service. Third, the components of library service on customwe satisfaction showed the following primary components: availability, the number of books and journals, facilities of air conditioning, public relation, usefulness of retrieval system, waiting time for Internet use, operating hour, speed of repairs, receipt of civil petitions, use of non-book materials.

• The Science & Technology
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• v.31 no.6 s.349
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• pp.18-19
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• 1998

초대 식품의약품안전청장으로 취임한 박종세청장은 "식품의 위해요인을 발본색원하고 충분한 예방조치를 취하여 모든 국민이 전국어디서나 안심하고 식생활을 할 수 있도록 최선을 다하겠다"고 강조했다 박청장은 "수입식품 검사업무의 투명성과 신속성을 확보하기 위해 구비서류를 간소화하고 검사기간을 단축하겠다"고 앞으로의 운영방향을 제시했다.

• Journal of Korean Library and Information Science Society
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• v.36 no.1
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• pp.71-89
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• 2005

This study discussed the problems of internet search engines or metadata and the necessity to catalog the digital information resources including information resources on the networks in libraries. The internet search engines or metadata make digital information resources indexed or organized immediately. But traditional library bibliographic tools like catalog should be described accurately and fully, and standardized in addition to the rapidity. Therefore from the library standpoint, digital information resources should be cataloged fully too. Cataloging cost of the increasing digital information resources can be reduced by cooperating and sharing the works among the libraries.

• Digital Contents
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• no.2 s.117
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• pp.28-29
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• 2003

연말연시 새해를 맞아 인터넷을 통해 한해 운을 점치려는 이들로 운세사이트가 문전성시를 이룬것으로 나타났다. 인터넷 운세 서비스는 정보이용의 신속성 편리성, 오프라인에 비해 상대적으로 저렴한 가격, 재미와 실용을 가미한 다양한 운세 서비스 등으로 네티즌들의 높은 인기를 끌고 있다. 전체 운세전문사이트 순방문자수는 9월에 239만 명에서 12월 112.64% 상승한 510만명으로 가파른 성장세를 보였다. 12월 운세사이트를 방문한 방문자를 살펴보면 성별로는 남성이 54.1% 여성이 45.9%로 나타났으며, 연령별로 10대가 24.5%, 20대가 31.9%, 30대가 25.7%, 40대 이상이 17.8%를 차지하는 것으로 나타나 20,30대 층에서 활발하게 이용한 것으로 조사됐다.