• Journal of Platform Technology
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• 제10권3호
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• pp.3-10
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• 2022

The effectiveness of an innovative skin treatment system that delivers an anti-aging solution deep into the skin without invasiveness and pain using a non-invasive air technology was investigated. In addition, an effective change using a non-invasive technique for delivering a solution for skin improvement was confirmed. The equipment named Cellre Jet is an effective skin care and drug delivery equipment that instantly opens the skin epidermis by using a maximum output pressure of 6 bars and high-pressure purified oxygen of 75-90% purity to deliver various nano-sized vital substances deep into the skin, and it uses the method of precisely controlling the equipment through an 8-inch digital touch display to accurately dispense the prescribed dosage. In this study, changes in skin condition were analyzed using this equipment and nano ampoules on subjects with actual skin problems through a related comparison and effectiveness judgment program. Through this study, skin care and drug delivery are possible, which will contribute to verifying the effectiveness of this non-invasive drug delivery equipment in the future, and is expected to establish the systematic effect in observing and studying changes in the skin.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.183-184
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• 2023

The purpose of this study is to compare and analyze the effect of type and volume fraction of fiber on the electrical conductivity and shielding effectiveness of cementitious composites. The large specific surface area of amorphous metallic fiber, as well as the high number of fibers per unit weight, provided an advantage in the formation of conductive path. As the result, the electrical conductivity of amorphous metallic fiber was evaluated to be higher, and the shielding effectiveness was also higher. However, the shielding effectiveness according to electrical conductivity was confirmed to have a threshold point, and further research is needed to improve it.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1995년도 가을 학술발표회 논문집
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• pp.267-272
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• 1995

The objective of this study is to investigate the effect of concrete strength on the stirrup effectiveness factor(K) of reinforced concrete beams with stirrup based on previous test results(a/d$\geq$2.5). In the procedure of the estimation of K, it was assumed that the ultimate shear strength for beams without stirrup is equal to the concrete contribution to shear strength for beam with stirrup. A model equation for calculation the stirrup of compressive strength of concrete. It was shown that the stirrup effective factor of compressive strength of concrete. It wah shown that the stirrup effective factor is greater than 1.0 up to compressive strength 85MPa. Therefore the current ACI Code equation for predicting the shear strength and the stirrup effectiveness factor of 1.0 is conservative for nomal and high stength concrete beams with stirrup.

• Journal of Acupuncture Research
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• 제17권3호
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• pp.99-105
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• 2000

Objectives : 19 patients diagnosed with chronic paranasal sinitis among the patients who visited to Kyunghee University Oriental Medical Center Department of Acupuncture and moxibustion from July, 1999 through July, 2000. Methods : The needle used in the treatment was 16cm in length and 0.375mm in radius. Using the straight needling method the choana was acupunctured straightly, and the opening of maxcillary sinus was acupunctured obliquely with the oblique needling method. Resuits : Looking at the effectiveness of this nasal acupuncture treatment, excellent was found in 4 cases(21%), good in 13 cases(68.4%), and unchanged in 2 cases(10.5%). The effectiveness totals up to 17 cases (89.4%) which is considerably high. Conclusions : Nasal acupuncture treatment can be used with high effectiveness in treatment of the chronic paranasal sinitis.

• Journal of Forest and Environmental Science
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• 제29권2호
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• pp.109-115
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• 2013

Fast-grown wood generally contains a high proportion of juvenile wood that results in inferior dimensional stability and durability against biological deteriorations. In the present research, the Acacia mangium wood from plantation forests in Vietnam was treated with high temperature in air. The effects of heat treatment on physical properties of Acacia mangium wood, including mass loss (ML), water absorption (WA), water-repellent effectiveness (WRE) and anti-swelling efficiency (ASE) were examined. The results showed that the dimensional stability and the water-repellent effectiveness are increased by about 15-46% and 8-18%, respectively. However, the mass and dimension of wood are decreased. The results also indicated that both treatment temperature and treatment duration significantly affect the wood properties of Acacia mangium. It is thus concluded that heat treatment demonstrates an interesting potential to improve the wood quality of Acacia mangium for solid timber products. This technology provides an environmentally safe method of protecting sustainable common woods to give a new generation of value-added biomaterials with increased stability without the use of toxic chemicals.

• 한국가정과교육학회지
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• 제18권4호
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• pp.39-54
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• 2006

본 연구의 목적은 중등학생의 양성평등의식에 따른 기술 가정 교과의 선호도와 학습효과를 차이를 분석하여 남녀학생 모두를 위한 교수학습 방법의 기초 자료를 제공하는 것이다. 이를 위해 춘천시의 중등학생을 대상으로 양성평등의식과 기술 가정 교과에 대한 선호도 및 학습효과를 조사하였다. 학생들의 양성평등의식은 높은 수준이나 성별에 따라서는 여학생이 남학생보다, 학교 유형에 따라서는 여학교, 남녀공학, 남학교의 순으로, 담당 교사 유형에 따라서는 통합인 경우가 분리 보다 양성평등의식이 높았다. 기술 가정 선호도와 학습효과는 남녀학생 모두 가정 선호도와 학습효과가 높았으나 여학생이 남학생보다 더 높았고, 기술 선호도와 학습효과는 남녀학생 모두 낮았으나 여학생이 남학생보다 더 낮아 여학생의 기술과 가정 편차가 남학생에 비해 더 컸다. 학교 유형에 따라서는 여학교의 가정 선호도와 학습효과가 높은 반면 기술선호도와 학습효과는 남학교가 높았다. 담당 교사 유형에 따라서는 통합인 경우가 분리인 경우보다 가정 선호도와 기술선호도가 높았다. 양성평등의식에 따라서는 양성평등의식이 상과 중 집단이 하 집단 보다 가정 선호도와 학습효과가 더 높았고, 기술 선호도는 양성평등의식이 상 집단이 중과 하 집단 보다 더 낮았다. 결론적으로 기술 가정 교과 선호도와 학습효과에 가장 큰 영향을 미치는 변인은 양성평등의식과 성별이었으며 이를 극복하기 위해서는 첫째, 남학생의 가정 선호도와 학습효과를 증대시킬 수 있는 교수학습 활동이 필요하다. 둘째, 기술 선호도와 학습효과는 가정에 비해 낮으므로 이를 향상시킬 수 있는 노력이 필요하며 특히 현저하게 낮은 여학생의 기술 선호도와 학습효과를 증대시킬 수 있는 교수학습 방법에 대한 연구와 개발이 활발히 이루어져야 한다. 셋째, 기술 가정 담당교사는 1인의 교사가 모든 단원을 전담하여 지도하는 통합형이 바람직하다. 넷째, 중등학생의 성 역할 고정관념을 제거하여 양성평등의식의 차이를 완화시킬 수 있는 교과지도 프로그램을 기술 가정교과에 적극적으로 적용할 필요가 있다.

• 대한한의학회지
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• 제38권3호
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• pp.160-169
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• 2017

Objectives: Health in adolescent is very important in the whole life. But, students in Korea are very busy and hard to care about their health. This study is aimed to effectiveness and safety of effectiveness of School Doctor program in Korean Medicine. Method: From august to december, 2015, Korean medicine association in Sungnam city conducted school doctor program for 12 middle and 8 high school. School doctor visitied 8 times and treat, lecture and consulting for students and teachers. The number of students participating in health lecture is 1,905. The number of students participating in the school project was 147 students in junior high school and 187 students in high school, totaling 334 students. Results: The overall satisfaction rate of students was very high (83.2%) for school doctor program in Korean medicine. 92.8% of respondents answered that they should continue to school doctor program in Korean medicine. Conclusions: We find that Korean medicine is suitable for the school doctor program. But this study have some limitations. Large-scale prospective study will be needed.

• 시스템엔지니어링학술지
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• 제6권1호
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• pp.33-39
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• 2010

Anti-surface missiles have been the most dangerous threat to the surface ships, therefore analyzing the defense effectiveness of surface ships against diverse anti-surface missiles attack strategies is very important to evaluate and anticipate the naval combat ship's abilities in terms of AAW (Anti-Air Warfare). In this paper, we don't study on the defense effectiveness of a ship against a missile, but focus on the defense effectiveness for surface ships against multiple missiles specialized in strategies of anti-surface missiles; ripple fire attack and simultaneous time on target attack (STOT). So, we conduct a variety of monte-carlo simulations with high-fidelity simulators, analyze the measure of defense effectiveness for the key factors of strategies and evaluate the effects and possible interactions of several factors through the analysis of the design of experiment (DOE).

• Asian Pacific Journal of Cancer Prevention
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• 제16권8호
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• pp.3591-3592
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• 2015

Endoscopy has been increasingly used in clinical practice and as a standardized examination procedure for gastrointestinal diseases. However, only a few studies on endoscopic screening for evaluating mortality reduction from gastric cancer have been carried out. Even if a high detection rate is obtained in clinical practice, such a rate cannot be directly accepted as evidence providing the effectiveness of cancer screening. Endoscopic screening for gastric cancer is not an exception of possibility to detect overdiagnosis. If detection rate is used for the evaluation of the effectiveness of cancer screening, the possibility of overestimating the effectiveness of cancer screening cannot be ruled out. To avoid the effect of overdiagnosis and confirm the effectiveness of endoscopic screening, mortality reduction from gastric cancer must be carefully evaluated by conducting reliable studies. The burden of gastric cancer remains real and this cannot be ignored in Eastern Asian countries. To determine the best available method for gastric cancer screening, evaluation of its effectiveness is a must. Endoscopic screening for gastric cancer has shown promising results, and thus deserves further comprehensive evaluation to reliably confirm its effectiveness and how its optimal use can be strategically promoted.

• 정보관리학회지
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• 제15권2호
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• pp.119-136
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• 1998

본 연구는 대학도서관의 효율적인 조직구조의 형성방안을 위하여 조직구조의 상황변수, 기본변수, 구조형태 및 조직유효성 간에 상호영향을 미치는 용인을 규명하고자 한 것으로서 연구모형을 설계하고 실증적인 검증을 시도하였다. 이 검증을 위하여 대학 도서관 조직구조의 상황변수로 환경, 기술, 규모, 전략유형, 권력유형을 채택하고, 기본변수로 복잡화, 공식화, 집권화를 채택하였으며, 구조형태는 단순조직, 기능별조직, 분관조직, 주제별 조직(I), (II)로 구분하였다. 그리고 조직유효성 변수는 능률성, 유연성, 정보자료관리 및 만족성을 채택하였고, 만족성은 조직몰입과 직무만족으로 세분하였다. 연구결과, 조직구조의 상황변수, 기본변수 및 구조형태는 상호간에 영향을 주며, 궁극적으로 조직유효성에 영향을 주지만 그 내용은 극히 미약한 것으로 나타났으며, 모든 측면에서 조직유효성이 높은 조직은 없는 것으로 분석되었다.