• 대한치과기공학회지
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• 제36권2호
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• pp.99-110
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• 2014

Purpose: This study was carried out in order to examine the relationship of job satisfaction and social support on the dental technicians and to analyze its influence. Methods: A self-reported questionnaire survey was carried out by having convenience sampling as 220 dental technicians who work in Seoul Metropolis, Gyeonggi-do Province, Daejeon and Chungnam Province. A research tool was used questionnaire that was proved reliability and validity. It was prepared with totally 37 questions such as 12 items for subjects' general characteristics, 18 items for job satisfaction measurement, and 7 items for social support measurement. An analysis of the collected data was computationally processed by using SPSS Win 17.0 program. An analytical technique was made by using statistical techniques such as frequency & percentage, T-test or One-way ANOVA analysis. The following are the analytical results of the collected materials. Results: As a result of analyzing research subjects' job satisfaction level, there was significant difference(P<0.05) in items of religion, hobby life, working environment, and rest time out of daily work. The whole mean in job satisfaction was indicated to be relatively high with 3.13. However, job satisfaction with social recognition, salary, and safety was indicated lowly. As a result of analyzing research subjects' social support level, there was significant difference(P<0.05) in items of age, working environment, and rest time out of daily work. The whole mean in social support was indicated to be relatively high with 3.49. As a result of analyzing correlation between job satisfaction and social support, all variables were indicated to be positive correlation in high significance level, thereby having been indicated that the higher job satisfaction leads to the higher social support. Conclusion: As a result of this study, there is high correlation between social support and job satisfaction. An effort and a support are considered to be necessary for forming positive personal relations among members such as relationship with family member and with fellow employee, for improving the working conditions, and for enhancing dental technicians' pride and social recognition in order to promote dental technician's job satisfaction.

• 대한치과기공학회지
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• 제34권3호
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• pp.249-261
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• 2012

Purpose: This study was carried out in order to examine the relationship of job satisfaction and quality of life on the dental technicians and to analyze its influence. Methods: A self-reported questionnaire survey was carried out by having convenience sampling as 220 dental technicians who work in Seoul Metropolis, Gyeonggi-do Province, Daejeon and Chungnam Province from March 12, 2012 to April 13. A research tool was used questionnaire that was proved reliability and validity. It was prepared with totally 50 questions such as 12 items for subjects' general characteristics, 18 items for job satisfaction measurement, and 20 items for life quality measurement. An analysis of the collected data was computationally processed by using SPSS Win 17.0 program. An analytical technique was made by using statistical techniques such as frequency & percentage, T-test or One-way ANOVA analysis. The following are the analytical results of the collected materials. Results: As a result of analyzing research subjects' job satisfaction level, there was significant difference(P<0.05) in items of religion, hobby life, working environment, and rest time out of daily work. The whole mean in job satisfaction was indicated to be relatively high with 3.13. However, job satisfaction with social recognition, salary, and safety was indicated lowly. As a result of analyzing research subjects' life quality level, there was significant difference(P<0.05) in items of religion, hobby life, working environment, and rest time out of daily work. The whole mean in quality of life was indicated to be relatively high with 3.10. However, the satisfaction was indicated lowly in the whole life quality and the life environment sphere. As a result of analyzing correlation between job satisfaction and life quality, all variables were indicated to be positive correlation in high significance level, thereby having been indicated that the higher job satisfaction leads to the higher life quality. Conclusion: As a result of research, the dental technicians' job satisfaction was indicated to have high correlation with quality of life. An effort is judged to be necessary for establishing fair compensation system, improving welfare policy and enhancing social recognition and position in order to promote dental technicians' quality of life.

• 마이크로전자및패키징학회지
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• 제12권1호
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• pp.53-58
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• 2005

구리 배선에서의 신뢰성 평가를 위해 직류전류와 교류전류를 각각 인가하였을 때의 파손 발생을 분석해 보았다. 직류 전류에서는 electromigration 현상이 발생하는데, 높은 전류 밀도와 온도에서 더욱 빠르게 파손이 진행되었으며, 실험을 통해 구한 활성화 에너지와 전류밀도 의존지수는 각각 0.96eV와 4의 값을 갖는 것으로 나타났다. 교류 전류에서는 열 피로 현상이 발생하였는데, 높은 주파수와 ${\Delta}$T가 클수록 파손이 심하게 진행되었다. 집합 조직에 따른 failure morphology분석 결과, (100)grains에서는 결함이 넓게 성장하여 facetted grains가 되지만 (111)에서는 배선의 두께 방향으로 성장하여 빠르게 단선을 유발하는 것으로 나타났다.

• 대한치과보철학회지
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• 제46권6호
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• pp.628-633
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• 2008

STATEMENT OF PROBLEM: The application of a simple, clinically applicable noninvasive test to assess implant stability are considered highly desirable. So far there is still a controversy about correlation of various tests and implant stability. PURPOSE: In order to assess implant stability, the development of a new method is critical. It's possible to assess implant stability by calculating energy and angular momentum during implant installation. The purpose of this study is to evaluate the correlation of energy and implant stability. MATERIAL AND METHODS: Twenty three implants were installed in two different types of pig bone. Type I bone was retrieved from the distal aspect of the rib, with more cortical bone. Type II bone came from a more proximal region with less cortical components and a higher content of bone marrow and spongeous trabeculae. Insertion torque, removal torque, ISQ values and angular momentum and energy were measured. Pearson Correlation test was done to analyze the relation between RFA, maximum insertion torque, mean insertion torque, bone type, energy and removal torque. RESULTS: Type I bone showed higher removal torque than type II bone. Energy value was significantly correlated with maximum insertion torque and mean insertion torque. RFA values were related with insertion torques but the significance was lower than Energy value. CONCLUSION: Within the limitation of this study energy values were considered clinically predictable method to measure the implant stability.

• 유통과학연구
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• 제17권5호
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• pp.95-102
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• 2019

Purpose - The purpose of the research is to identify the demographic characteristics of the customers with high private label purchase intention. According to the previous research demographics such as gender, age, income, and residence type affect private label purchase intention indirectly through psychographics rather than directly. For instance, higher income group is time pressured, price-insensitive, quality-sensitive, less likely to enjoy shopping utilitarian products, and less likely to be variety-seeking. The main contribution of this research is to verify the results found in the previous empirical foreign research using scanner data and to investigate the differences of the characteristics of private label users between Korea and the foreign countries. Research design, data, and methodology - In order to empirically test the proposed hypotheses, scanner data of a Korean major super center was analyzed. Results - Empirical results show that private labels are more favored by old people over 50s, dwellers in individual house, lower income group, and frequent store visitors. Age of 30s, dwellers in the apartment of 30 pyung, higher income group, and consumers who purchased a large amount are less likely to purchase private labels. Gender turned out not to affect private label purchase. It should be noted that there is a significant multicollinearity among independent variables. Conclusions - The research findings provide managerial implication for retailers' private label strategy. In general, retailers heavily send private label coupons to the customers with high purchase volume. According to the research, however, store visit frequency is much more positively associated with private label purchase than purchase amount. The study has some limitations. The samples are only consumers with private label purchase experience. The data were drawn from one store and only 8 commodity products were used for the analysis. Also, if more demographics were available, a more complete description on the private brand users' profile could have been derived. We propose the following future research. Research using the data including consumers without private label experience, research investigating direction of causality between private label loyalty and store loyalty, and research using hedonic private label products such as TV and PC could be promising.

• 대한한의학회지
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• 제16권1호통권29호
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• pp.184-197
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• 1995

After 45 patients examined as to the result of medical treatment among the ones who came to Dept. of Pain Clinic, Oriental Medical Hospital, Chunju Woosuk University complaining low back pain chiefly from Dec/19/1994 to Feb/7/1995 for 50 days or so were observed clinically, the results were obtained as follows: 1. In duration of the case history, acute stage(37.8%) was the most predominant, and subacute stage(35.6%) and chronic stage(26.7%) were revealed in turn. 2. In opinions of radiation, Spondylosis(26.7%) was the most predominant, Scoliosis(15.6%) and HIVD(11.1%) were revealed in order, and 3 cases were revealed to be negative. 3. In the radiating pain of the lower limb, the radiating pains of the left lower limb were the most predominant and those of the right lower limb and those of both lower limbs were revealed in turn. By the way, 31.1% of patients didn't suffer from the radiating pain of the lower limb. 4. In the grade of the seriousness of subsective symptom, Grade 2(66.7%) was the most predominant, and Grade 3, Grade 4, and Grade 1 followed it in order. 5. In the period of the treatments of medi-acupuncture, 2-5 day treatments(31.1%) were major and 6-10 day treatments(26.7%), 16-20 day treatments(11.1%), 26-30 day treatments(11.1%), over 31 day treatments(11.1%), 11-15 day treatments(4.4%), and 21-25 day treatments(4.4%) followed it by turns. Thus 2-10 day treatments are 57.8% and under 30 day treatments are 57.8% of all. 6. In the frequency of use of each medi-acupuncture, V was most frequency used in 41 cases(91.1%), and 11 cases of HN(24.4%), 8 cases of MOK(17.8%), 4 cases of OK(8.9%), 2 cases of B(4.4%), and a case of I(2.2%) were revealed in turn. 7. In the effect of treatments, 10 cases(22.2%) were excellent, 25 cases(55.6%) were good, 5 cases(11.1%) were fair, and 5 cases(11.1%) were poor. As the result, 88.9% of all changed for the better and all of these were improved within the third trial. 8. The effect of the treatments per durations was 100% in acute stage, 93.8% in subacute stage, and 66.7% in chronic stage. According to that, it was reavealed that the rate of treatments decreased as it came near to the chronic stage. 9. The effect of treatments per radiating pains was 87.5% in the radiating pains of the left lower limb, 81.8% in those of the right lower limb, 100% in those of both lower limbs, and 92.9% in case that patients have no radiating pains. So in the rate of treatments on radiating pains of the lower limbs, the case of both sides or no radiating pains was higher than that of one side. 10. In the effect of treatments per the condition of patients, Grade 4 showed 100% of improvement, Grade 3 showed 90.9% of improvement, Grade 2 showed 86.7% of improvement, and Grade 1 showed 100% of improvement. 11. In the effect of treatments per contents of treatments, the group treated with medi-acupuncture therapy, herb medication therapy, acupuncture therapy, and physiothrapy at the same time(Group 1) showed 100% of improvement, the group treated with medi-acupuncture therapy, acupuncture therapy, and physiotherapy simultaneously(Group 2) showed 73.7% of improvement, and the group treated with medi-acupuncture therapy and acupuncture therapy at the same time(Group 3) showed 100% of improvement. 12. 2-5 day treatments showed 78.6% of improvement, 6-10 day treatments showed 91.7% of improvement, and over 31 day treatments showed 100% of improvement. As the result, genarally the longer the period of treatment was, the better the effect of treatment was. 13. When only V was used, the rate of treatment was 96.2%. When only HN was used, the rate of treatment was 100%. When only MOK was used, the rate of treatment was 100%. When V and HN were used at the same time, the rate of treatment was 33.3%. When V and MOK were used at the same time, the rate of treatment was 100%. When V and OK were used at the same time, the rate of treatment was 100%. When V, HN, and MOK were used at the same time, the rate of treatment was 100%. When V, OK, and MOK were used at the same time, the rate of treatment was 100%. When V, MOK, and B were used at the same time, the rate of treatment was 100%. When V, HN, OK, and I were used at the same time, the rate of treatment was 100%. When V, HN, and B were used at the same time, the rate of treatment was 100%.

• 한국학교ㆍ지역보건교육학회지
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• 제16권3호
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• pp.31-40
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• 2015

Objectives: The study investigated constipation in male and female high school students and in order to provide data base for development of education and intervention programs aimed at preventing and managing constipation in high school students. Methods: The study used a technique of convenience sampling to mobilize the entire students in an academic high school in D region. Of the combined 360 copies of questionnaire distributed, 340 copies were collected and used for the final analysis. The gathered data were analyzed using frequency, percentage, and ${\chi}^2-test$ in SPSS 21. Results: The ratio of female students with constipation is significantly higher than that of male students with the condition(${\chi}^2=5.73$, p=0.017), and there were significant differences in exercise habits(${\chi}^2=26.75$, p<0.001), eating habits(${\chi}^2=43.19$, p<0.001), and bowel habits(${\chi}^2=22.96$, p<0.001) between female students and male students. Also there was significant difference in water intake between the normal group and the constipation group(${\chi}^2=10.01$, p=0.040). Significant differences between the two groups were also discovered in the level of perception of constipation(${\chi}^2=98.76$, p<0.001), bowel movement time(${\chi}^2=15.74$, p=0.008), and use of laxatives(${\chi}^2=17.68$, p<0.001) and enema(${\chi}^2=16.97$, p<0.001) for constipation relief. Conclusions: To prevent and manage constipation in high school students, education about healthy dietary, and bowel habits is required. Also there is an urgent need to improve the school toilet environment in order to respect the rights of students to void or defecate when necessary, a process which will require involvement of students, teachers, and other school staff.

• 디지털융복합연구
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• 제11권11호
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• pp.367-372
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• 2013

기존의 Levenshtein distance 알고리즘은 어휘들 간의 순서가 정해져 있지 않은 경우에 사용되므로 어휘 탐색 작업의 중요도를 구분할 수 없는 단점을 가진다. 본 연구에서 제안하는 개선된 Levenshtein 방법에서는 효율적으로 사용빈도에 따라 어휘들을 탐색하고, 어휘들 간의 순서를 가지는 가중치를 부여한다. 따라서 어휘의 수가 증가하는 경우에도 효율적으로 사용빈도에 따라 어휘를 탐색하여 인식율이 저하되는 단점을 해결하고, 인식 시간을 향상 및 탐색 공간의 효율적으로 관리할 수 있는 장점을 가진다. 제안한 시스템을 분석한 결과 실내 환경에서 어휘 종속 인식률은 97.81%, 어휘 독립 인식률은 96.91%의 인식률을 나타났다. 또한, 실외 환경에서 어휘 종속 인식률은 91.11%, 어휘 독립 인식률은 90.01%의 인식률을 나타났다.

• 한국한의학연구원논문집
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• 제18권2호
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• pp.65-89
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• 2012

Objective : In order to investigate and improve public Korean medical health service satisfaction level, this study was designed. Method : A questionnaire has been conducted on 212 patients who received treatments at six public health centers in the northern part of Gyeongbuk during 15 days between Sep. 24 and Oct. 8, 2011. Result : 1. An Investigation on the usage of herbal clinics in public health centers reveals that 63.7% have received three times or more medical treatments previously and 61.8% have had their illness treated at other medical institutions. In regard to illness 32.1% have had arthritis or muscle aches. 50.9% have taken insurance medication after having had treatments at the public health centers. 66% have assessed acupuncture and moxa cautery the most satisfying. 2. To a question regarding whether herbal health treatment costs higher than that of physician's, the highest response at 31.6% is 'No'. And to a question regarding whether herbal medicines administered at public health centers have more side effects than that of physician's, the highest response at 39.6% is 'No'. 3. To a question regarding whether herbal treatment of public health centers has little effect against acute disease, 48.1% of responses are 'Fair'. To a question regarding whether herbal treatments, when compared with physician's treatments, boost better recovery of patients, 48.1% of responses are 'Fair'. To a question regarding whether herbal medicine is unscientific, when compared with that of western medicine, 38.2% of responses are 'Fair', To a question regarding whether herbal medicine has faster effect on disease than western medicine, 41.0% of responses are 'Fair'. To a question regarding whether herbal medicine is more effective on disease prevention and promotion of health than disease treatment, 38.2% of responses are 'Fair'. And to a question regarding whether the lack of various types of physical therapy devices in herbal medicine, when compared with western medicine causes inconvenience in herbal treatment, 42.0% of responses are 'Fair'. Those responses take up highest portion at each questionnaire. 4. A comparative study between herbal treatments and physician's treatments has also been conducted. To questions regarding which one of the two considering types of disease is the better, responses are the latter accounted for 43.9% against 'Cancer', the latter accounted for 45.3% against 'Endocrine disorders', the former accounted for 30.7% against 'Psychiatric disorders', the latter accounted for 38.2% gainst 'Otolaryngological(ENT) disease', the former accounted for 47.6% against 'Post traumatic stress disorder', and the former accounted for 52.4% against 'Muscle-skeletal disease'. 5. An investigation on frequency of patients' visits via (p<0.05) of subjects show a statistically significant difference. 6. First, an investigation on frequency of reasons of medical treatments reveal that age, occupation, monthly income, and insurance type (p<0.05) of subjects show a statistically significant difference. Secondly, an investigation on frequency of subjects taking insurance medicines after herbal health treatments reveal that monthly income (p<0.05) of subject shows a statistically significant difference. 7. First, an investigation on frequency of a claim that herbal treatments of public health center does not have great effect on acute disease reveals that age, education, and insurance type (p<0.05) of subjects show a statistically significant difference. Secondly, an investigation on frequency of analysis that herbal treatments has faster effect on disease compared with western treatments reveals that education level, religion, monthly income, and insurance type (p<0.05) of subjects show a statistically significant difference. 8. When herbal clinics of public health centers and general herbal medicine institutions are compared, a survey on additional treatments that herbal clinics need the most reveals that education level, monthly income, and insurance type (p<0.05) of subjects show a statistically significant difference. Secondly, an investigation on frequency of subjects who want various forms of herbal medicines reveals that occupation and insurance type (p<0.05) of subjects show a statistically significant difference. Conclusion : In order to improve efficiency of treatments and enhance patient's satisfaction level, this study suggests measures such as providing a differentiated acupuncture treatments as a whole, streamlining an reception procedure, adopting more elaborated computer system for a patient to get proper medical attention, standardizing a treatment duration in order for a maximum result, keeping regular office hours, and optimizing a consultation time for a patient.

• 수산해양기술연구
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• 제27권1호
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• pp.41-55
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• 1991

최근 10년간(1977년~1986년) 제주시와 서귀포시의 지상기상자료를 분석하여 제주도지방의 해륙풍의 기후학적 특성을 조사한 결과를 요약하면 다음과 같다. 1. 해륙풍의 발생빈도는 월별로는 8월(약 15.5%)이 가장 높고 그 다음이 9월, 10월, 5월, 11월의 순이다. 춘계보다는 추계가 더 발생빈도가 높으며 동계 매월 평균(약 5%)가 가장 낮다. 2. 해풍은 제주도의 북부해안이 남부해안보다 연평균 약 30분 정도 더 일찍 발생하고 약 1시간정도 늦게 소멸한다. 반대로 육풍은 남부해안이 북부보다 연평균 1시간 정도 일찍 발생하나 연평균 소멸시각은 남북해안이 비슷하다. 제주도지방의 해풍의 발생시각은 연평균 9~10시로 남해안 지방(13~14시)보다 약 4시간 이르며, 소멸시각은 연평균 17~19시로 역시 남해안지방(19~21시)보다 약 2시간 정도 이르다. 3. 해풍의 연평균 지속시간은 북부해안이 남부해안보다 약 1시간 정도 길고, 육풍의 그것은 반대로 약 1시간 정도 짧게 나타난다. 계절별로는 해풍의 경우 하계가 동계보다 길고 육풍의 경우는 또 그 반대이다. 해풍에서 육풍으로의 전이시간은 하계가 길고 동계가 짧은 경향을 보이며, 육풍에서 해풍으로의 전이시간은 계절적인 특징이 나타나지 않는다. 4. 해풍의 최대풍속의 출현시각은 연 평균적으로 북부해안(14.0시)보다 남부(13.4)가 다소 일찍 나타나나, 육풍은 비슷한 양상(약 2.5시)을 보여주며, 해풍이나 육풍 모두 월평균 출현시각의 계절적 특징은 뚜렷하지 않다. 그리고 해풍과 육풍의 월평균 최대풍속은 각각 남북해안 모두 비슷하고 연평균으로는 해풍(약 4.1m/s)이 육풍(약 3.3m/s)보다 다소 강하다.