• 디지털산업정보학회논문지
• /
• 제8권2호
• /
• pp.199-211
• /
• 2012

There have been studies to evaluate valuation of firms by using patents in various ways. Also, the theory that value of patents helps enterprise's growth is valid in economics. However, when evaluating the value of the company, through the patent evaluation has not been used. Because of previous studies researched relation between patents and firms only at certain points. To solve this problem, this study intends to analyze lag between patent and profitability of the firms. In this study, we classified top 100 software firms in the United States through PBR, PER and value of intangible assets by using cluster analysis. And we applied Almon's distributed lag model to each cluster to find out lag between patent and profitability of the firms. As a result, in the cluster of more valuable companies, patents have an effect on profitability of the firms at regular lags. This study indicates that the patents are an important indicator to assess companies.

• 한국산업정보학회논문지
• /
• 제20권5호
• /
• pp.45-52
• /
• 2015

하이브리드 하드디스크는 저전력이면서 마그네틱 하드디스크에 비해 읽기 성능이 우수하다. 이 디스크의 플래시메모리에는 지역성이 높은 블록이 저장되므로 효율적인 블록 교체 기법이 필요하다. 블록 교체에는 크기, 지역성, 빈도 등 다양한 요인에 의해 결정되므로 일종의 다중 기준 결정 모델로 정의될 수 있다. 이 문제를 해결하기 위해 본 연구는 AHP (Analytic Hierarchy Process) 모델을 적용하여 효율적인 블록 교체 기법을 제시한다. 실험의 효율성을 검증하기 위하여 철저한 시뮬레이션을 수행한 결과 일반응용 프로그램의 응답성뿐만 아니라 부트 시간이 단축됨을 확인하였다.

• 한국산업정보학회논문지
• /
• 제22권6호
• /
• pp.31-38
• /
• 2017

정보기술의 발전에 따라 보안의 중요성은 매우 높아지고 있다. 기존의 보안 시스템은 대부분 고가이고 구현이 용이하지 않으며 생체 정보를 사용하는 경우 또한 매우 복잡하다. 본 논문에서는 지문과 얼굴 이미지를 사용하는 저가의 사물인터넷 기반 보안 단말기를 구현하여 이러한 점을 해결하고자 한다. 저가의 보안 시스템을 구현하기 위하여 라즈베리파이에 지문인식 스캐너와 카메라를 장착하고 스캔 이미지는 AES-256 알고리즘으로 암호화하여 클라우드에 전송한다. 본 연구를 통해 우리는 제안하는 시스템의 인증 서비스, 비용의 감소, 보안성, 그리고 확장성 측면에서의 가능성을 확인할 수 있었다.

• 산업진흥연구
• /
• 제1권1호
• /
• pp.79-89
• /
• 2016

본 연구는 사회복지의 발전추세에 따라 향후 공적 사회복지 전달체계가 더욱 중요함을 인식하고 여기에 나타난 조직운영 상의 실태분석을 통해 극복요인을 파악하고자 하였다. 극복요인으로는, 첫째, 전달체계의 속성에 대한 극복이다. 둘째, 업무의 비효율성에 대한 극복이다. 셋째, 전달체계 및 인력상의 부조화에 대한 극복이다. 넷째, 사회복지통합관리망의 관리부실에 대한 극복이다. 결론적으로 본 연구를 통해 위와 같은 극복요인이 해결될 때 비로소 공적 사회복지 전달체계가 원활히 이루어질 수 있음을 알 수 있다.

• 산업기술연구
• /
• 제23권A호
• /
• pp.165-173
• /
• 2003

The purpose of this paper is to analysis of initial behavior of concrete pavement with initial measurement strain gauge for concrete pavement at field, and to investigate the field test results for field applicability testing. The early-age behaviors of concrete pavement slabs were measured using the strain gauges. From the slab depths and positions, the outputs from each gauges were recorded at initial curing period. The initial measurement of concrete pavement and check of crack at the joint were performed, the results could be summarized as follows. From the results of concrete strength, compressive strength and flexural strength were showed $271kgf/cm^2$, $43kgf/cm^2$ respectively. From the tests of early-age strain measurement, it was found that the strain varied at the maximum value of $150{\mu}{\varepsilon}$ and early behavior of concrete slab was showed a tensile strain. However, for long-term was showed a compressive strain due to dry-shrinkage.

• 산업기술연구
• /
• 제25권A호
• /
• pp.39-47
• /
• 2005

Air void systems in hardened concrete has an important influence on concrete durability such as freeze-thaw resistance, water permeability, surface scaling resistance. Linear traverse method and point count method described at ASTM are the routine analysis of the air void system that have been widely used to estimate the spacing factor in hardened concrete. Recently, many concretes often have a spacing factor higher than the generally accepted $200-250{\mu}m$ limit for the usual range of air contents. This study is proposed to estimate the plane spacing factor by calculation of simplicity. The plane spacing factor need two parameters that are air content and numbers of air voids in the hardened concrete. Those obtained from the standard air-void system analysis of the ASTM C 457. The equation is valid for all values of paste-to-air ratio because the estimation of paste content is unnecessary at the using ASTM C 457. The plane spacing factor yields a similar estimate of the standard spacing factor.

• 한국의류산업학회지
• /
• 제8권1호
• /
• pp.71-79
• /
• 2006

The study of young people's attitudes towards appearance management has special significance for understanding young people's living, thought and attitudes. It was handed out 600 questionnaires in the three cities and look 573 questionnaires back, out of which 552 were used as the basic material for the analysis. These 522 questionnaires included 178 in Beijing, 200 in Shanghai, 175 in Dalian. 154 questions in four aspects were raised in the questionnaires. The purpose of this study were to identify the Chinese generation' lifestyle and fashion attitudes. Questionnaires developed by researcher were distributed and collected from 552 chinese new generation of the three cities(178 in Beijing, 200 in Shanghai, 175 in Dalian). 1) Life attitudes of new generation men and women in China were classified into five factors, which were extravagant pleasure-seeking, sports-oriented, marriage-oriented, appearance-oriented and study-oriented attitudes. 2) Fashion attitudes of new generation men and women in China were classified into eight factors, which were fashion attitude of being conscious of others, others-dependent fashion attitude, rational fashion attitude, brand-pursuing fashion attitude, active appearance management fashion attitude, unique fashion attitude, fashion attitude of being conscious of sex role and individuality-oriented fashion attitude.

• 한국의류산업학회지
• /
• 제1권2호
• /
• pp.127-136
• /
• 1999

The purpose of this research was to investigate the difference between perceptions of the nude body and of the clothed body as measured by body cathexis scale. Subjects were 274 college male and female between 20~30 yrs. Data were analyzed by using frequency, T test, cluster analysis, Duncan test by using Spss for window 8.0 PC program. Significant difference were found between mean scores of male and female on the nude body cathexis (NBC) and clothed body cathexis (CBC) Scales for hair texture, hair color, face, face color, shape of head, eye, lips, forehead, back, trunk, waist, bust, leg of shape, chest, hip. On the difference between male and female, significant differences were found between NBC and CBC scales for all body parts except hair texture, face color, ears, eyes, teech. Male had higher satisfaction than female in both body cathexis. The taller men, the higher body satisfaction with face shape, body shape, height in both body cathexis. Before appearence management, the bigger men, the higher body satisfaction with musle, waist, height, chest, body shape in both body cathexis. Male had higher satisfaction than female in both body cathexis. The taller women, the higher body satisfaction with neck, body shape, height in before appearence management. The bigger women, the higher body satisfaction with heights, weight distributions, waist, height in both.

• 한국의류산업학회지
• /
• 제3권4호
• /
• pp.313-322
• /
• 2001

This study was designed to investigate actual conditions(the types and the personal physical job related factors) of fashion model in Korea. Survey was done through questionnaire data, 194 fashion models were involved survey. The data were analyzed by using frequency, cluster analysis. The results of this study were as follows : 1) The largest sample were as follows (about personal physical related factors) : unmarried, college graduate and undergraduate, resident in the Seoul, 2-24 yrs female with 175-177 cm, 52-54 kg, B-W-H (33-24-35 inch). 2) The largest sample (about job related factors) were as follows: getting private educational institution, 1-2 yrs job experience, B grade, less than 600,000 won for salaries, 100,000-190,000 won at a stage, 5-6 yrs duration of model work, inexperience in the international fashion stage, take up a foreign language, fashion magazine for fashion source, image and look of individuality for a necessary condition. The motive for job was the concern in the job. Problems with a guarantee were pointed out for the betterment working conditions. 3) The types of fashion model were classified into 4 types : the type of lack of professionalism, the type of show off one's talents, the type of dissatisfaction with working condition, the type of maturity of professionalism.

• 한국의류산업학회지
• /
• 제5권3호
• /
• pp.244-250
• /
• 2003

Various types of industry, from manufacturing industry to service industry, can be a subject of exhibition. So, subdivided studies about exhibition for each type of industry or field are necessary. However, there are still insufficient studies about them. Also, fashion industry related exhibitions should be classified differently from other industries' exhibitions because of their special features. Hence, this study examines that how an exhibition is utilized as a promotion means of a company and the present condition of a fashion exhibition. It also compares a fashion exhibition with other industrial exhibitions to suggest the effective operations and the progressive promotion of the fashion exhibition. This study uses questionnaire from 5 companies, which participated fashion related exhibitions. Data of this study is statistically analyzed using SPSS for window ver. 10.0 program. As a result of this study, fashion related companies' recognition of exhibitions has been increased. However, in terms of exhibition participation. attitudes such as pre-promotion or pre-education for the staff, who are in charge of the exhibition booths, and the outcome of the exhibition aren't maximized because the right understanding concerning exhibitions is lacking and long-term preparation is insufficient. Also, advertisement for the exhibitions isn't enough because of insufficient preparation and absence of pre-promotion, so consultation with promising buyers can't be activated. Even though there are consultations, the consultations don't have much effect.