• The Journal of Korean Physical Therapy
• /
• 제11권2호
• /
• pp.123-130
• /
• 1999

Objectives : This study was to investigate the experience rate and factors related with Low Back Pain(LBP). Methods : Questionnaires were completed by 236 dental hygienists in Taegu city and Kyungpook province in June 23-27, 1999. The solicited information was used to estimate odds ration and $95\%$ confidence intervals for the LBP related factors association. Results : The experience rate of LBP was $78\%$. The experience rate of LBP was significantly associated with scaling posture(odds ratio=2.228)(p=0.0371) and stress with dentist(odds ratio=2.767) (p=0.0136). Conclusions : Data from this study support a statistically significant association between LBP and some factors found in other research to increase the relation with LBP. Study findings may have implications for targeting at dental hygienists for scaling posture education or intervention program.

• Industrial Engineering and Management Systems
• /
• 제14권4호
• /
• pp.401-412
• /
• 2015

In this paper, we present a modeling approach to production planning for an actual production line and a heuristic method. We also illustrate the successful implementation of the proposed method on the production line. A heuristic algorithm called the push-back algorithm was designed for a single machine earliness/tardiness production planning with distinct due date. It was developed by combining a minimum slack time rule and shortest processing time rule with a push-back procedure. The results of a numerical experiment on the heuristic's performance are presented in comparison with the results of IBM ILOG CPLEX. The proposed algorithm was applied to an actual case of production planning at Woongjin Chemical, a leading manufacturer of filter products in South Korea. The seven-month execution of our algorithm led to a 24.5% decrease in the company's inventory level, thus demonstrating its practicality and effectiveness.

• 중환자간호학회지
• /
• 제1권1호
• /
• pp.59-71
• /
• 2008

Purpose: This study was to identify the effects of simulation-based training for advanced cardic life support on the competence of nurses in critical care settings. Methods: In this study, a nonequivalent control pretest-post test quasi-experimental design was used. Data were collected from May 1 to June 1, 2006 at one general hospital in W city. Among 40 nurses in critical care settings, twenty were assigned to the experimental group and twenty to the control group. Nurses in the experimental group received simulation-based training for advanced cardiac life support. Measurement tool were ACLS related knowledge and skills developed by AHA & Mega Code (2005) and some items were modified. The collected data were statistically processed using SPSS version 12.0 for Windows, and analyzed using descriptive statistics, $X^2$test, t-test, paired ttest, Pearson correlation coefficients. Results: 1) Hypothesis 1“: Nurses who received simulationbased training would have more knowledge of advanced cardiac life support than nurses who received traditional training”, was supported (t=11.51, p=.00). 2) Hypothesis 2: “Nurses who received simulation-based training would have better advanced cardiac life support skills than nurses who received traditional training”, was supported (t=2.38, p=.00). Conclusion: Simulation-based training for advanced cardiac life support is an effective strategy for increasing the competence of nurses in advanced cardiac life support in critical care settings.

• 한국IT서비스학회지
• /
• 제10권2호
• /
• pp.235-245
• /
• 2011

Early criticality prediction models that determine whether a design entity is fault-prone or not are becoming more and more important as software development projects are getting larger. Effective predictions can reduce the system development cost and improve software quality by identifying trouble-spots at early phases and proper allocation of effort and resources. Many prediction models have been proposed using statistical and machine learning methods. This paper builds a prediction model using Support Vector Machine(SVM) which is one of the most popular modern classification methods and compares its prediction performance with a well-known prediction model, BackPropagation neural network Model(BPM). SVM is known to generalize well even in high dimensional spaces under small training data conditions. In prediction performance evaluation experiments, dimensionality reduction techniques for data set are not used because the dimension of input data is too small. Experimental results show that the prediction performance of SVM model is slightly better than that of BPM and polynomial kernel function achieves better performance than other SVM kernel functions.

• 한국정밀공학회지
• /
• 제22권2호
• /
• pp.70-78
• /
• 2005

In this paper, a novel rotor flux estimation method of an induction motor using support vector regression(SVR) is presented. Two well-known different flux models with respect to voltage and current are necessary to estimate the rotor flux of an induction motor. Training of SVR which the theory of the SVR algorithm leads to a quadratic programming(QP) problem. The proposed SVR rotor flux estimator guarantees the improvement of performance in the transient and steady state in spite of parameter variation circumstance. The validity and the usefulness of proposed algorithm are throughly verified through numerical simulation.

• 가정과삶의질연구
• /
• 제26권2호
• /
• pp.25-32
• /
• 2008

The purpose of this study was to investigate the relationship with self-efficacy and social support and organizational commitment of kindergarten and child care teachers. The subjects were 257 kindergarten and child care teachers. The data were analyzed by Path Analysis, Multiple Regression(using SPSS 15.0 and Amos 6.0). Major findings were as follows: (1) The self-efficacy was significantly associated with organizational commitment of kindergarten and child care teachers. And social support was significantly associated with organizational commitment of kindergarten and child care teachers. (2) The self-efficacy was significantly associated with social support of kindergarten and child care teachers (3) The self-efficacy was not significantly associated with organizational commitment of kindergarten and child care teachers, controlled by social support. That result showed the social support was more important variable affecting organizational commitment of kindergarten and child care teachers than the self-efficacy.

• Asian Pacific Journal of Cancer Prevention
• /
• 제14권4호
• /
• pp.2151-2153
• /
• 2013

The history of the APOCP/APJCP goes back to 1999 when a number of interested scientists joined together to form the organization and to launch a new journal to support cancer prevention research in the Asian-Pacific area. Since the initial Founding Conference, some six General Assemblies (GAs) and ten Regional Conferences (RCs) and Special Study Sessions have been organized. Already the decisions have been made for two further GAs and at least three RCs. As of the April issue of 2013, a total of nearly 3,700 papers have already been published in regular issues of the APJCP or special supplements. With support of the Korean National Cancer Center, housing the Chief Editorial Office, the journal is now including approximately 100 papers a month. Although it experienced a set-back by reduction in the Impact Factor (IF) from 1.29 in 2010 to 0.67 in 2011, there are good grounds to expect an improvement in 2012. However, the future of the APOCP/APJCP will continue to depend on its membership, making continuous efforts to attend our conferences and submit good quality manuscripts. It is particularly important to cite papers in the APJCP wherever possible, if the wish is for an IF commensurate with our long term aims. In that sense it is up to all authors, since the journal will continue to have a very positive ploicy towards accepting papers from all countries within the Asian-Pacific, with continue to varied levels of resources. The editorial team looks forward to your considered support. The APOCP also hopes to see you in person at future meeetings, so that you have a more active voice in deciding the best way forward in our cooperative enterprise.

• 한국의류산업학회지
• /
• 제2권5호
• /
• pp.430-436
• /
• 2000

The purpose of the study was to obtain the basic data on the self-adjusting ability of the support panty stockings. Ten healthy women in the twenties were selected as subjects and clothing pressure of 9 support panty stockings made of single covered yarn (SCY) and double covered yarn (DCY) were measured under the standard environmental condition for the study. Data was analysed statistically according to body postures, sides, and parks. The results were as follows: Clothing pressure according to body posture was order of 'sitting-on-a-chair', 'stepping-up-a-stair', and 'standing'. High clothing pressure was obtained in the parts of calf ($9.4gf/cm^2$) in 'standing' and knee (9.7 and $16.5gf/cm^2$) in both 'stepping-up-a-stair' and 'sitting-on-a-chair', respectively. The order of clothing pressure with body sides was 'front', 'side', and 'back'. The highest clothing pressure was knee ($18.8gf/cm^2$) on the front, thigh ($8.8gf/cm^2$) on the side, and calf ($6.4gf/cm^2$) on the back. Clothing pressure of DCY at abdomen and knee was a little higher than those of SCY 3. In terms of material structure variation, clothing pressure of thigh, calf and ankle with SCY was a little higher than those with DCY, while clothing pressure of abdomen and knee with DCY was a little higher than those with SCY.

• 멤브레인
• /
• 제20권3호
• /
• pp.235-240
• /
• 2010

본 연구의 목적은 각기 다른 특성을 갖는 지지체에 따른 정삼투막의 성능을 비교 빛 평가하는 것이다. 계변 중합을 통하여 소수성 지지체인 폴리술폰(PSf)과 상대적으로 친수성 지지체인 폴리에테르술폰(PES)의 표변에 폴리아미드 활성층을 갖는 정삼투막을 제조하여 투과유량과 역확산을 비교하였다. PSf 정삼투막과 PES 정삼투막의 투과유량은 $4.36\;L/m^2hr$와 $17.8\;L/m^2hr$으로 PES를 지지체로 하는 정삼투막이 투과성능이 더 우수함을 알 수 있었으며, 이를 통해 지지체의 친수성과 정삼투 공정에서의 투과성능 간에 관련성이 존재함을 확인할 수 있었다. 또한 막의 두께가 앓아질수록 정삼투 공정에서 막의 투과유량은 증가하였다.

• 한국콘텐츠학회논문지
• /
• 제13권11호
• /
• pp.221-235
• /
• 2013

본 연구의 목적은 결혼이주여성의 배우자지지와 가족지지가 정신건강에 미치는 영향을 파악하여, 정신건강증진을 위한 중재프로그램의 기초자료로 활용하고자 실시하였다. 본 연구는 결혼이주여성 129명을 대상으로 실시한 서술적 상관관계 연구이다. 연구결과로 상태불안은 출신국가, 결혼기간, 가족형태, 결혼형태, 모국에 방문경험, 한국어 능력, 우울은 배우자학력, 친정에 경제적 지원, 한국어 능력, 신체화 장애는 배우자 학력, 거주 지역, 직업에서 차이가 있었다. 또 상태불안과 우울은 가족지지 및 배우자지지, 신체화 장애는 가족지지와 부적 상관관계가 있었다. 정신건강에 영향을 미치는 주요 변수는 가족지지였으며, 상태불안에는 출신국가, 결혼기간, 결혼형태, 한국어 능력, 신체화 장애에는 배우자학력과 거주 지역, 직업이었다. 본 연구 결과를 근거로 이주여성의 다면적이고 복합적인 이질문화생활에 적응을 도울 수 있는 다양한 정신건강교육 프로그램과 함께 가족지지 향상을 위한 간호학적 중재개발이 이루어져야 한다.