• 제목/요약/키워드: Evaluated

검색결과 61,651건 처리시간 0.071초

Assessment of soil density and distribution coefficient of Cs-137 for deriving DCGLs in korea research reactor unit 1 and 2

  • Geun-Ho Kim;Ilgook Kim;Kwang Pyo Kim
    • Nuclear Engineering and Technology
    • /
    • 제56권7호
    • /
    • pp.2452-2457
    • /
    • 2024
  • To obtain site-specific values of the Derived Concentration Guideline Levels (DCGLs) for decommissioning of KRR-1&2, the soil density and distribution coefficient values for Cs-137, a major contaminant radionuclide, were determined. The soil density was evaluated according to the test method established by the Korean Agency for Technology and Standards of the Ministry of Trade, Industry, and Energy (KATS). The distribution coefficient was evaluated using a batch test. The validity of using the evaluated soil density and distribution coefficient as site-specific values was assessed through radiation dose assessment reflecting these values. Average soil density value obtained was 1.738 g/cm3, which was within the typical range of normal soil density, 1.0-1.8 g/cm3. The average distribution coefficient value was 7,754 mL/g. Applying the maximum, average, and minimum values of the evaluated soil density and distribution coefficient showed similar radiation dose results, thus suggesting that it is reasonable to use the average values of each parameter as site-specific values. Findings of this study can help determine DCGLs that reflect the characteristics of the research reactor site.

SDAR을 이용한 아스팔트 혼합물의 적용성 평가 (Application Evaluation of Asphalt mixtures using SDAR (Solvent DeAsphaltene Residue))

  • 양성린;임정혁;황성도;백철민
    • 한국도로학회논문집
    • /
    • 제17권4호
    • /
    • pp.53-61
    • /
    • 2015
  • PURPOSES : The objective of this study is to evaluate the SDAR (solvent deasphaltene residue), which is obtained from the solvent deasphalting (SDA) process, as a pavement material. METHODS : The physical properties of the SDAR were evaluated based on its chemical composition, and asphalt mixtures with the SDAR were fabricated and used for the evaluation of mechanical properties. Firstly, the chemical composition of SARA (saturate, aromatic, resin and asphaltene) was analyzed using the TLC-FID (thin-layer chromatography-flame ionization detector). Moreover, the basic material properties of the asphalt binder with the SDAR were evaluated by the penetration test, softening point test, ductility test, and PG (performance grade) grade test. The rheological properties of the asphalt binder with the SDAR were evaluated by the dynamic shear modulus ($G^*$) obtained using the time-temperature superposition (TTS) principle. Secondly, the mechanical properties of the asphalt mixtures with the SDAR were evaluated. The compactibility was evaluated using the gyratory compacter. Moreover, the tensile strength ratio (TSR) was used for evaluating the moisture susceptibility of the asphalt mixtures (i.e., susceptibility to pothole damage). The dynamic modulus $E^*$, which is a fundamental property of the asphalt mixture, obtained at different temperatures and loading cycles, was used to evaluate the mechanical properties of the asphalt mixtures. RESULTS AND CONCLUSION : The SDAR shows stiffer and more brittle behavior than the conventional asphalt binder. As the application of the SDAR directly in the field may cause early failures, such as cracks on pavements, it should be applied with modifiers that can favorably modify the brittleness property of the SDAR. Therefore, if appropriate additives are applied on the SDAR, it can be used as a pavement material because of its low cost and strong resistance to rutting.

패션디자인분야 교육과정에 대한 인식도 연구 (A Study on the Recognition of Importance about the Curriculum of Fashion Design Field)

  • 최해주
    • 복식
    • /
    • 제66권6호
    • /
    • pp.149-157
    • /
    • 2016
  • For the Korean fashion industry to become more competitive, not only does it need to develop a higher value-added fashion products, but also needs to raise creative and professional talented people. The purpose of this study is to propose ways to develop new curriculum for education in the fashion design field by analyzing the degree of recognition about the importance of curriculum in fashion design. Based on the curriculums of fashion design field of universities, a survey was conducted using a questionnaire to measure the degree of importance and the degree of application for the curriculum of fashion design field. The study gathered data from 235 students from 6 universities in Seoul. Major conclusions of the study are as follows: First, preferred career courses after graduation were fashion designer for woman's or menswear, patterner. Second, clothing construction field is considered to be the most important subject in the present, while material planning field is considered to become the most important in the future. The fashion design field was evaluated as an important field in the present and the future. Third, fashion design, accessory design, fashion design CAD, fashion illustration were evaluated as important subjects and highly available for career. Fourth, fashion design CAD, fashion illustration, and textile design were evaluated as the courses that needed more emphasis. Flat sketch, spec sheet, on-the-job training were needed to be included. Fashion designer, and patterner were preferred for career courses. Clothing construction, material planning, and fashion design were evaluated as important fields. Accessory design, fashion design CAD, and fashion illustration were evaluated as important and highly available subjects for career. For the new curriculum in the fashion design field, more courses on fashion design CAD, fashion illustration, textile design and on-the-job training are needed.

산후풍 인식 차이 조사 (A Study on the Difference of Inspection on Sanhupung(産後風))

  • 이창훈;조정훈;장준복;이경섭;변상현
    • 대한한방부인과학회지
    • /
    • 제19권4호
    • /
    • pp.148-158
    • /
    • 2006
  • Purpose : Sanhupung(産後風) is not completed golden standards of diagnosis therefore doctors diagnose through symptoms and signs of patients in clinic same as progress of treatments. We polled oriental gynecologic specialists and non-specialisst to find out cognitive differences on Sanhupung. Subjects : We surveyed 83 specialists and 87 non-speciailist from May 15 2005 to Oct 15. We analyzed the result of respondants, 39 (47%) specialists and 65 (75%) nono-specialits). Methods : We sorted all symptoms in previous studies then we categorized them into 4 fields. The results are analyzed by frequency, importance and impact(frequency percentage${\times}$average importance). Results : Except back pain, all pain symptoms were lower evaluated in non-specialist on frequency. Except inguinal region pain, pain of lower limbs and back pain, all pain symptoms were lower evaluated in non-specialist on importance. Except the numbness of limbs, all items of whole body were lower evaluated in non-specialist on frequency. Except edema, numbness of hand and foot and discharge from the uterus, all items were lower evaluated in non-specialist on importance. All items of neuropsychotic symptoms were lower evaluated in non-specialist on frequency and importance.

  • PDF

학교종합평가에 대한 교사들의 평가 (Scool Comprehansive Evaluation Evaluated by Teachers)

  • 장한기;이승준
    • 수산해양교육연구
    • /
    • 제15권1호
    • /
    • pp.1-24
    • /
    • 2003
  • This research investigates how teachers evaluate the School Comprehensive Evaluation administered by KEDI from 2000 to 2001. To provide basic data for improvement of the School Comprehensive Evaluation, the following six questions were asked: 1. What are the teachers' evaluations of the School Comprehensive Evaluation? 2. What are the teachers' evaluations of the operation of the School Comprehensive Evaluation? 3. What are the teachers' evaluations of the results of the School Comprehensive Evaluation? 4. What are the teachers' evaluations of the effects of the School Comprehensive Evaluation? 5. What are the teachers' opinions regarding the problems of the School Comprehensive Evaluation and solutions to them? 6. What are the teachers' evaluations of the open classrooms and evaluators? 360 questionnaires were distributed to teachers who had been working at the Busan and Ulsan Metropolitan City schools taken the School Comprehensive Evaluation, and 258 questionnaires were processed by a SPSS WIN. The followings are major findings of the study: 1. The teachers evaluated the School Comprehensive Evaluation to be more desirable compared to the usual School Evaluation. 2. They recognized the need for preliminary training with extended time about the School Comprehensive Evaluation. They evaluated that the procedure and area of the evaluation were quite valid. 3. They evaluated the evaluation reports were objective but not leading changes in the respective schools. 4. The School Comprehensive Evaluation did not much contributed to the improvement of the schools. 5. Stress from interview and class observation was the major problem to the teachers. 6. The teachers did prepare for their open classes, but highly evaluated the evaluator's professionalism.

Quantitative Evaluation of Median Nerve Motor Function in Carpal Tunnel Syndrome Using Load Cell : Correlation with Clinical, Electrodiagnostic, and Ultrasonographic Findings

  • Kim, Dong Hwan;Park, Sung Bae;Lee, Sang Hyung;Son, Young-Je;Chung, Gih Sung;Yang, Hee-Jin
    • Journal of Korean Neurosurgical Society
    • /
    • 제54권3호
    • /
    • pp.232-235
    • /
    • 2013
  • Objective : Major complaints of carpal tunnel syndrome (CTS) are sensory components. However, motor deficit also impedes functional status of hand. Contrary to evaluation of sensory function, the objective, quantitative evaluation of median nerve motor function is not easy. The motor function of median was evaluated quantitatively using load cell and its correlation with findings of electrodiagnostic study (EDS) was evaluated. Methods : Objective motor function of median nerve was evaluated by load cell and personal computer-based measurement system. All of the measurement was done in patients diagnosed as having idiopathic CTS by clinical features and EDS findings. The strength of thumb abduction and index finger flexion was measured in each hand three times, and the average value was used to calculate thumb index ratio (TIR). The correlation of TIR with clinical, EDS, and ultrasonographic findings were evaluated. Results : The TIR was evaluated in 67 patients (119 hands). There were 14 males and 53 females, mean age were 57.6 years (range 28 to 81). The higher preoperative nerve conductive studies grade of the patients, the lower TIR was observed [p<0.001, analysis of variance (ANOVA)]. TIR of cases with thenar atrophy were significantly lower than those without (p<0.001, t-test). TIR were significantly lower in patients with severe median nerve swelling in ultrasonography (p=0.042, ANOVA). Conclusion : Measurements of median nerve motor function using load cell is a valuable evaluation tool in CTS. It might be helpful in detecting subclinical motor dysfunction before muscle atrophy develops.

직물의 종류와 특성에 따른 온라인과 오프라인에서의 의복소재 이미지 비교 (The Comparison of Fabric Images between On-line and Off-line by Fabric Types and Characteristics)

  • 김희숙;조신현
    • 한국생활과학회지
    • /
    • 제13권5호
    • /
    • pp.787-798
    • /
    • 2004
  • This research was designed to compare clothing fabric images between on- and off-line by fabric types and its characteristics. 125 subjects who have a fashion design major evaluated the fabric image of various 16 kinds of specimens on- and off-line. Frequency, x2-test, t-test, and Pearson correlation were used for statistical analysis by SPSS WIN 11.0. The results of this study are as follows: 1. The advantage of on-line shopping includes low price and purchasing convenience, etc. On-line shoppers mostly purchase clothing items, such as T-shirt and slacks. In most cases, texture of fabrics provides a main cause for the shoppers' discontentment with internet shopping. 2. The results of t-test for the difference of the evaluation score show that plain or pile weave and highly thick or thin fabrics-for example, Organdy, Corduroy, Nylon Taffeta, Plush, etc.-have a large difference between on-and off-line image. On the other hand, medium-thick twill weave-for example, Tweed, Flannel, etc.-or patterned weave-Chiffon, Dobby fabric, etc.-shows a small difference. 3. The results of correlation of the evaluation score indicate that wool twill fabrics like Tweed, Saxony, and Polafleece show a high correlation between two kinds of evaluation score. In texture preference, no correlation exists between on-line and off-line. 4. With an analysis on fabric image evaluation by fabric characteristics, smooth, shiny pink Satin was found the most positively-evaluated item in all evaluation fields except in pattern preference and individuality. On the other hand, thick olive green Corduroy was evaluated most negatively in the fields of elegance, luxury, and feminine. 5. When compared with real ones, thin fabrics provide a different on-line fabric image. For example, Nylon Taffeta and Organdy were evaluated positively on-line because of luster and pastel tone color. However, lusterless uneven cotton Seersucker was evaluated negatively. 6. Real fabrics preference is more negative than on-line ones. In addition, patterned or unique fabrics display a high agreement between the two kinds of images.

  • PDF

국방Bt&D사업 자체평가시스템 메타평가 (A Study on the Meta Evaluation for Defense R&D Programs)

  • 김순영;하규수
    • 산업경영시스템학회지
    • /
    • 제32권3호
    • /
    • pp.59-70
    • /
    • 2009
  • This study is the result of meta evaluation for the self evaluation of defense R&D programs in Korea by using meta evaluating indicators. The overall meta evaluation result of defense R&D programs gained 74.3 points out of 100, so it was evaluated as 'Good'. But it demonstrated that further improvement for overall system of defense R&D programs evaluation is required. And especially, it demonstrated that more alternatives are necessary in order to improve the utilizations and the feedbacks of evaluation results. The evaluation context component gained 80.2 points out of 100, so it was evaluated as 'Very Good'. The evaluation input component gained 73.1 points out of 100, so it was evaluated as 'Good'. The evaluation process component gained 74.8 points out of 100, so it was evaluated as 'Good'. And the evaluation outcome component gained 69.0 points out of 100, so it was evaluated as 'Good'. Basic model of meta evaluation was derived from the literature review and brain storming. And this meta evaluation model was determined by adopting the result of experts who performed evaluations for defense R&D programs in recent years. The reliability of components and items was verified by Cronbach's a coefficient. It was over 0.6 in evaluation components and items. And the reliability of evaluation context was 0.877, that of evaluation input was 0.755, that of evaluation process was 0.755, that of evaluation output was 0.755 respectively. From the analysis, it is attempted to identify possible problems and to find out the ways of improvements related to the self evaluation system of defense R&D programs. The ultimate objective of this study is to manage the programs effectively and improve the reliability and the objectiveness of the defense R&D programs.

벨 버텀 팬츠(Bell Bottom Pants)의 시각적 평가 (A Study on the Visual Evaluation of Bell Bottom Pants)

  • 이정순
    • 한국의상디자인학회지
    • /
    • 제16권1호
    • /
    • pp.15-25
    • /
    • 2014
  • The purpose of this study is to recognize the differences of visual evaluation by variations in width of hem line and waistline position of the bell buttom pants. The stimuli are 9 samples: One control group, 3 variations of the width of hem line and 3 variations of the waistline position. The data has been obtained from 56 fashion students. The data has been analyzed by Factor Analysis, Anova, Scheffe's Test and the MCA method. The results of the study are as follows: The visual evaluation by the width of hem line and waistline position of bell buttom pants are composed of 5 factors : comfort, personality, physical characteristics, stiffness and modern. Among these factors, the comfort is evaluated to be the most important factor. As a visual evaluation result of changes in the width of hern line, 62cm in width (the narrowest width) was highly evaluated in comfort and stiffness factors, 78cm in width (the widest width) was highly evaluated in personality and physical characteristics factors. For the result of changes in the waistline position, high-waisted bell buttom pants were was highly evaluated in personality and stiffness factors, low-waisted bell buttom pants were was highly evaluated in comfort, physical characteristics and modern factors. The width of hem line and waistline position of the bell buttom pants interacted to the comfort factor. The width of hem line had more influence on visual evaluation in personality factors while physical characteristics, stiffness and modern factors were affected by the waistline position.

  • PDF

Associations among the Degree of Nonalcoholic Fatty Liver Disease, Metabolic Syndrome, Degree of Obesity in Children, and Parental Obesity

  • Oh, Min-Su;Kim, Sorina;Jang, Joon-Hyuck;Park, Jong Yoon;Kang, Hyun-Sik;Lee, Mu Sook;Kang, Ki Soo
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • 제19권3호
    • /
    • pp.199-206
    • /
    • 2016
  • Purpose: To analyze the associations among the degrees of nonalcoholic fatty liver disease (NAFLD) by ultrasonography and metabolic syndrome, degrees of obesity in children, and degrees of parental obesity. Methods: A total of 198 children with obesity who visited a pediatric obesity clinic were prospectively enrolled in this study. The severity of NAFLD based on ultrasonography was classified into no, mild, moderate, or severe NAFLD group. The degree of obesity based on the percentage over standard weight for height per sex was classified into mild, moderate, or severe. Results: Of 132 patients evaluated for the degree of NAFLD and metabolic syndrome, the p-value of correlation between the two factors was 0.009. Therefore, metabolic syndrome might significantly affect the degree of NAFLD. Of 158 patients evaluated for the degree of NAFLD and the degree of obesity, the p-value of correlation between the two factors was 0.122. Of 154 patients evaluated for the degree of obesity and father's obesity, the p-value was 0.076. Of 159 patients evaluated for the degree of obesity and mother's obesity, the p-value was 0.000, indicating that mother's obesity could significantly affect the degree of obesity in children. Of 142 patients evaluated for the degree of obesity and metabolic syndrome, the p-value was 0.288. Conclusion: Metabolic syndrome might significantly affect the degree of nonalcoholic fatty liver in children. In addition, mother's obesity might be a significant factor that affects the degree of obesity in children.