• Journal of Navigation and Port Research
• /
• v.40 no.1
• /
• pp.15-20
• /
• 2016

In this study we measured a differential ASF to improve the accuracy of time synchronization with the signal transmitted from Pohang 9930M Loran station. We obtained the differential ASF which is calculated from a difference of the TOA measurements between KRISS and Chungnam National University(CNU), and KRISS and National Maritime PNT Office respectively. The TOA measurement at KRISS was measured by UTC(KRIS) reference clock and other sites were measured by atomic clocks respectively. The time variations of differential ASF measurements at CNU and National Maritime PNT Office were within $0.1{\mu}s$ and $0.05{\mu}s$ respectively. And we found the time variations of $0.1{\mu}s$ depending on the surrounding radio-wave environments from the differential ASF measurements of 60 minute moving averages. We can improve the accuracy of time synchronization of the local clock to within 10 ns by compensating the differential ASF through removing the common component of ASF. And we measured the absolute ASF between the Pohang transmit station and KRISS by the measurement technique of absolute time delay using a cesium atomic clock. The average ASF between two points is about $3.5{\mu}s$.

• Journal of the Korean Society for information Management
• /
• v.27 no.3
• /
• pp.307-323
• /
• 2010

The amount of online scholarly information rapidly expands in numerous resources, while user behavior demands single search box interface like Google Scholar. Despite scholarly values of e-resources libraries provide, users consider Google Scholar as the most efficient research tool attracted by its speed, simplicity, ease of use, and convenience. Characteristics of Metasearch System compared with Google Scholar are analyzed from perspectives of the interface and e-resource. Based on usage statistics of Metasearch System along with a link resolver in one academic library, e-resource accessibility patterns and information seeking behaviors of subject-specific areas are investigated for electronic information services.

• Journal of the Korean Society of Costume
• /
• v.60 no.9
• /
• pp.150-161
• /
• 2010

In Korea, recent trends indicate an increase in the volume of the functional clothing market. This study investigated the evaluative criteria and information sources of functional clothing according to gender and age. A total of 756 responses were analyzed using descriptive statistics, MANOVA, and Duncan's test. The main effect of gender on the evaluative criteria and information sources of functional clothing was identified. Compared with male consumers, female consumers gave more importance to price and aesthetic criteria. Female consumers take advice from colleagues and companions, as well as use information obtained from mass media to a greater extent than male consumers. Age was seen to have an effect on evaluative criteria and information sources in purchasing functional clothing. Respondents in their forties and fifties took textile quality and durability more seriously. Information available on the Internet and following the dressing styles of celebrities were preferred by respondents in their twenties.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.24 no.5
• /
• pp.675-685
• /
• 2000

The fashion leadership, use of fashion information, and apparel shopping behavior of middle-and high-school male students were examined. The interrelationship of the three variables was also analysed. Subjects were 600 male students in Kang-Bouk and kang-Nam. Major findings indicated that fashion consciousness and confidence were the significant factors in fashion innovativeness and opinion leadership. And the outfit of celebrities(popular signer and film stars) was the most influential factors in the fashion leadership. Among commercial informations, the display and interior was more effective than advertisings. The higher the innovativeness, the more subjects wanted to accompany friends rather than parents and also the more time was spent in their shopping.

• Journal of the Korean Society for Library and Information Science
• /
• v.35 no.1
• /
• pp.163-185
• /
• 2001

If you can not pinpoint the location of a desired item through union catalogs and online databases, the next best thing is to identify a special collection that is likely to have it. Many libraries have many items that are recorded only on their own premises as special collections. This paper describes the value of special collections as important information sources and the guides for determining the existence and location of special collections. Women's collection development by KWIC is introduced as a case study of special collection building in the university libraries in Korea.

• Journal of Food Hygiene and Safety
• /
• v.34 no.5
• /
• pp.489-494
• /
• 2019

The appropriateness of introducing blockchain technology into food safety management systems was evaluated by conducting a survey of experts on the effectiveness and constraint evaluation indicators, and a portfolio analysis was conducted to set the priorities of blockchain application. The food safety management activities considered in this study were issuing documents on food import/export, food hygiene rating scheme, civil complaint management in the food sector, food- related certification, risk information management, and food traceability systems. The sectors that can be expected to be effective in the introduction of blockchain technology were food- related certification, food hygiene rating scheme, risk information management, and issuing documents on food import/export. In the case of food traceability systems and civil complaint management, the introduction of blockchain technology was not recommended due to ineffectiveness. From the evaluation of the constraints (e.g., technical limits, cost, legal amendment, personal information disclosure, timeliness, and ease of connection) to be overcome when introducing blockchain into food safety management, it was found that there are more than average constraints in all six areas. In particular, the food traceability system was evaluated to have the most constraints. Issuing documents on food import/export is very effective with the introduction of blockchain technology, but due to high cost and legal restrictions, it is necessary to improve the institutional system in order to introduce blockchain. Among the evaluation sectors, food- related certification, food hygiene rating scheme, and risk information management on foods were suitable for preferentially adopting blockchain technology since these areas might experience greatly improved reliability and transparency through the introduction of blockchain, with relatively low constraints.

• Proceedings of the KSCN Conference
• /
• 2004.05a
• /
• pp.366-371
• /
• 2004

최근에 조사된 연구에 따르면 한국 성인 암환자의 50∼60%가 민간요법 또는 대체요법을 사용하고 있으며, 그 중 70% 정도가 효과를 보았고 부작용은 거의 경험하지 않았다고 보고하였다고 한다. 가족 및 친지, 동료환자 및 매스컴이 주된 정보원이었고, 대부분이 경제적 부담이 된다고 응답했지만 월 50만원 이상 지출하는 경우가 50% 이상이었다.(중략)

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2023.11a
• /
• pp.169-171
• /
• 2023

eLoran 신규송신국 구축 진행현황을 확인하고 eLoran 전국망 지상기반 PNT 서비스의 안정 제공을 위한 울릉도, 제주도 신규송신국 구축 가능한 해수부 부지를 사전 검토하고 부지 특성에 따른 안테나 설계 적합성 및 성능을 검토하여 적정한 안테나 배치안을 제시하였다.

• Journal of Korean Home Economics Education Association
• /
• v.15 no.2
• /
• pp.67-78
• /
• 2003

To investigate the consumer awareness and clothing purchase behavior of adolescents, questionnaire was administered to 639 middle and high school students in Daegu. The results were as follows. 1. The consumer awareness of adolescents was analyzed to 4 factors. consciousness of right. consumer information, brand-orientedness and responsibility. Respondents were clustered into three groups : utility-oriented group, brand-oriented group, and consumerism-oriented group. 2. Respondents bought their clothes at specialty stores primarily. They used ´products´, ´family's or friends advices´, and ´purchase experiences´ as information sources. The important criteria for selecting clothes were ´design´, ´price´, and ´suitability´ for oneself. Dissatisfactions after purchasing clothes were with ´price´, ´service´, ´sewing´, and ´size´. The complaining behaviors which respondents did mainly were ´telling friends about dissatisfaction with their purchased clothes´, ´asking for change dissatisfying products or asking for refund´ and ´asking for mending´. 3. Information sources were categorized into 3 factors: ´neutral information source´, ´personal information source´ and ´commercial information source´. Criteria for selecting clothes were factor-analyzed into ´harmony´, ´fashion´ and ´management of clothes´. ´The factors of dissatisfactions with purchased clothes were ´appearance´, ´quality´ and ´service´. 4. The differences by the consumer awareness in clothing purchase behaviors among consumer groups : In information sources. criteria for selecting clothes, complaining behaviors. purchasing places. three consumer groups were different significantly.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.36 no.8
• /
• pp.802-813
• /
• 2012

This study establishes how the clothes consumption value, need for uniqueness, and use information sources could influence the importance of apparel product attributes and the importance of store attributes. Data were collected through a survey of adults in their 20's and 30's with 48 questionnaires for statistical analysis. The collected data were processed with the programs AMOS 16.0 and SPSS 18.0 for windows and reliability analysis, correlation analysis, factor analysis, and structural equation analysis were conducted to analyze the data. The results in this research are follows. First, the clothes consumption value influences the importance of apparel product attributes both directly and indirectly and the importance of store attributes indirectly through use information sources. Second, the need for uniqueness influences the importance of apparel product attributes indirectly and importance of store attributes both directly and indirectly through clothes consumption value and use information sources. The implications of these findings and suggestions for future study are also discussed.