• 한국인터넷방송통신학회논문지
• /
• 제11권4호
• /
• pp.53-60
• /
• 2011

무선 센서 네트워크에서, IEEE 802.11은 센서노드간에 최대전력을 사용하여 패킷을 전송하기 때문에, 불필요한 에너지 소모가 발생한다. BASIC구조는 RTS-CTS패킷 전송에 최대 전송전력을 사용하며, 에너지 효율을 높이기 위해서 DATA-ACK전송에 최소한으로 필요한 전송전력을 사용한다. 그러나 BASIC구조는 반송파 감지지역의 노드에 의한 ACK패킷의 충돌로 인해 네트워크 수율이 떨어지며, 전력제어를 하지 않는 IEEE 802.11을 사용할 때 보다 더 높은 에너지 소모를 가진다. 기존에 제안된 PCM(Power Control MAC)구조는 ACK패킷의 충돌을 피하기 위해, 반송파 감지지역에서 DATA패킷의 전송을 감지하기 위해 주기적으로 최대 전력레벨로 DATA패킷 전송방법을 이용하였다. 본 논문에서는 기존의 PCM구조의 에너지 효율에 대한 문제점을 제시하고, 보다 높은 에너지 효율을 가진 개선된 PCM구조를 제안하였다.

• 한국의류학회지
• /
• 제25권4호
• /
• pp.719-730
• /
• 2001

The purpose of this study is to develop the basic patterns of adult womens brassiere therewith, provide for some basic data useful to the brassiere manufacturing which are both functional and fitting. For this purpose, 220 adults women(aged between 20 and 59) were sampled to be measured for their body sizes and tested for their brassiere wearing. The collected data were statistically processed using the SAS 6.12 for Means, Standard Deviation, etc. The results of this study can be summarized as follows; 1. In order to develop the basic patterns of adult womens brassieres, 75A size was selected out of 12 size combination(3 women per 75A size) and then, their brassiere fitting was tested. As a result, the fronts of the basic patterns were found to have such problems as undone front center, poor levelling of upper cups bottom line or lower cups top line, poor shape of upper cups outside top line and shoulder strip position. On the other hand, n the rear side of the basic patterns, the central part of the wing was slightly lifted, while the wing width and straps interval did not befit the full-cup brassiere. The result of this first brassiere fitting test showed that the functionality and aesthetics of the basic pattern brassieres were more or less satisfactory, and thus, the problems were address for the second test. In the second test, the aesthetics, breast-shaping effect and functionality of the basic pattern brassieres were much improved. 2. The basic patterns of adult womens brassieres were characterized by a round cup wired as well as a full cup embracing the entire breasts. Each basic pattern which consisted of upper and lower cups was shaped \"straight(-)\". The basic sizes adopted at the first design stage (see fig. 1-2) was 75A of which was designed as upper foundation basic pattern. At the second stage, the upper body foundation pattern were used to design lower cup, upper cup, front panel and wing in their order.(see fig. 3-5, fig. 8)5, fig. 8)

• International Journal of Reliability and Applications
• /
• 제1권2호
• /
• pp.133-143
• /
• 2000

Data from weighted distributions appear, among other situations, when some of the data are missing or are damaged, a case that is important in reliability and life testing. The kernel method for hazard rate estimation is discussed for these data where the basic large sample properties are given. As a by product, the basic properties of the kernel estimate of the distribution function for data from weighted distribution are presented.

• 대한인간공학회지
• /
• 제15권2호
• /
• pp.149-155
• /
• 1996

The purpose of this study is to provide basic information for elderly women's clothing design and to develop dress forms that can reflect the characteristics of their bodies. Three hundered twenty subjects, between the ages of 60 .approx. 85, were chosen and the data were collected from anthropometric data. Principal component analysis which is one of the basic methods in factor analysis was applied to the interpretation of anthropometric data. As a result of analysis, the data are able to be decided into appropriate group.

• 유통과학연구
• /
• 제17권4호
• /
• pp.69-76
• /
• 2019

Purpose - The purpose of this study is to examine the effect of basic value satisfaction on service quality evaluation and customer loyalty and the moderating effect of Bargain-proneness in this process. Specifically, I analyzed the influence of basic value satisfaction, the mediating effect of service quality evaluation, and the moderated mediation effect of Bargain-proneness. Research design, data, and methodology - Data collection for this study was conducted for adults over 18 years of age with shopping experiences in traditional market within a month around the traditional market in the metropolitan area. A total of 250 questionnaire response data was obtained. Hypotheses were tested using SPSS. The PROCESS macro method was used to verify the mediating effect of the service quality evaluation on the relationship between basic value satisfaction and customer loyalty. Hierarchical regression analysis was performed to analyze the moderated mediation effect of the bargain-proneness tendency. Results - Empirical results showed that the basic value satisfaction affected service quality evaluation and customer loyalty. Specifically, it has been found that it directly affects customer loyalty and indirectly influences through service quality evaluation. The moderated mediation effect of the bargain-proneness tendency in the process of basic value satisfaction affecting customer loyalty through service quality evaluation has been verified. In other words, the higher the bargain-proneness tendency, the more influence the basic value satisfaction has on the favorable service quality evaluation. Conclusions - This study contributed to the distribution literature in that it attempted a new empirical study considering the variable 'bargain-proneness tendency', which had not received much academic attention in the past. Furthermore, this study contributed academically in that it presented important moderating variables that should be paid attention in the field of distribution studies. In this study, bargain-proneness was used with a focus on traditional markets, but this variable could play an significant role in future offline distribution studies that should pay attention to meet hedonic needs of shopping. These results suggested that traditional market practitioners should focus on the basic value and that the bargain-prone consumer segment should be considered as a target.

• 융합정보논문지
• /
• 제9권2호
• /
• pp.1-6
• /
• 2019

본 논문에서는 의료용 빅 데이터를 활용하여 비즈니스와 연계하여 새로운 서비스를 창출하기 위한 프레임 워크를 설계하였다. 단순한 데이터 분석 단계를 나타내는 것이 아니라 데이터의 활용 목적을 명확히 하고, 이에 대한 분석을 수행하여 그 속에서 가치를 추출하고 실제 사업이나 서비스를 운용할 때까지의 과정을 설계한다. 설계된 프레임워크는 기본 아키텍처, 사회 시스템 모델까지 커버할 수 있도록 하였다. 설계된 프레임 워크를 참조하여 사회 시스템에 적용될 수 있도록 디자인하였으며, 기본 데이터로는 의료용 빅 데이터를 중심으로 하였다. 의료용 기본 데이터를 적용한 프레임 워크 설계로 여러 의료용 사업 제휴 및 서비스 창출을 실현할 수 있을 것으로 기대하고 있다.

• 대한간호학회지
• /
• 제29권1호
• /
• pp.21-33
• /
• 1999

This study was designed to develop a basic plan for computerization of nursing records. The subjects were 7 nursing record forms, 58 charts, 23 nurses, 2 nurse managers, a nurse and computer specialist, 16 master course students and 3 professors. Data collection was conducted through questionnaire, observation and interview. The collected data were analyzed for problems, plan of improvement and needs for computerization. Based upon these results, it is recommended that nursing record computerization was needed a basic plan to integrate needs of nursing record computerization. The basic plan as fellows : 1. To illustrate a data flow path of nursing record and data dictionary that show nurse's work and record process. 2. To establish a system in order to use multi -tasking and graphic user interface. 3. To establish hardware and software in order to embody integrated management of computer based system through structured walkthrough. 4. To choose effective database management system and to achieve Log as record unit.

• 산업경영시스템학회지
• /
• 제21권45호
• /
• pp.1-10
• /
• 1998

Today anthropometric data used in the basic designing of own vehicles are foreign data rather than domestic data. The disagreement of the interface caused by this situation is causing of consumer's discomfort or less satisfaction. This study aims at constructing a database to determine the most efficient database for a Korean driver and optimize efficiency for both consumer and producer. The object of this database is for making a system that gathers manages processes and treats vast informations regarding the vehicles occupant package and the human body. The main contribution of this work is collecting basic informations and designing of the procedure.

• 한국학교보건학회지
• /
• 제20권1호
• /
• pp.53-61
• /
• 2007

Purpose: The purpose of this study on education and skill of Basic life Support Training in Middle and High School Students. Methods: The Basic life support training courses are taught mostly by Emergency Medical Technician and Paramedic. Sixty five middle school students, Seventy eight High school students and forty six adult received tuition in Basic life support training and subsequently completed questionnaires, test and interviews to assess their theoretical knowledge regarding their likelihood of performing Basic life support training. Under the supervisor, The subjects were evaluated by comparing basic life support education and skill data collected and the education sessions consisted of a 30min video tape. The Basic life support skill sessions used Laerdal manikin, and the data stored from the HeartSim were collected for further analysis. The students were asked to practice what they had been. A statistical analysis was done using the SPSS version 13. Results: Their average age of middle school students were 15.3±1.2 years, high school students (17.3±1.8), and adults(38.3±2.3). The total of 189 subjects were evaluated. The criteria used in the study had the following results First, We found that middle and high school students scored higher than adult. The scores were statistically significant to teach and evaluate the education evaluation showed that the adults scored lower than the middle and high school students. Second, We found that high school students and adult scored higher than middle school students. The scores were statistically significant to teach and evaluate the skills evaluation showed that the middle school students scored lower than the high school students and adult. Conclusion: We found that middle and high school students were superior to adult counterparts in understanding the basic life support education. We found that high school students and adult scored higher than middle school students in the BLS skill training. An expansion of basic life support training to middle and high school students is demanded. The Basic life support skills training seems to be retained between 6 and 12 months. The basic life support training should included in the school education curriculum in school.

• 한국의상디자인학회지
• /
• 제21권3호
• /
• pp.149-160
• /
• 2019

Body fit should be the first point considered for satisfying the functionality of clothes and thus it is the most essential condition. Based on previous research, this article studied the basic slacks pattern with a high body fit using body measurement of adolescent boys. The purpose of this study is to propose basic data for the production of slacks. Research was performed on the physical measurements of adolescent boys from 13-18 years old obtained from the '6th Korean National Physical Standard Reports' by SIZEKOREA. First, six types of experimental slacks basic patterns were produced applying the average body sizes of adolescent boys. Second, a single slacks basic pattern was selected, which received the best response based on appearance from the clothing evaluators. Then, the slacks basic pattern for adolescent boys was finalized by modifying and amending the selected pattern with two more clothing experiments. The data analysis was performed using descriptive statistics, ANOVA, and t-test using the SPSS program. The results of this study have been obtained as follows. The modifications and adjustments were done based on Crotch, Thigh Circumference, waist circumference, and hip circumference.