• Title/Summary/Keyword: Design Test Evaluation

Search Result 2,817, Processing Time 0.037 seconds

A Study on the Development of the Nightgown Considering the Construction Features of the Cheolik and the Shimui (심의와 철릭을 활용한 나이트가운 개발에 관한 연구)

  • Kim, Hyun-Jeong;Cho, Oh-Soon;Kim, Yeo-Sook
    • Journal of the Korean Society of Costume
    • /
    • v.57 no.6 s.115
    • /
    • pp.1-16
    • /
    • 2007
  • The study aimed to develop the nightgown considering the construction and design features of the Shimui and the Cheolik. The analysis on the construction features of the Korean traditional costume and the physiological and motional attributes while sleeping resulted into the construction factors of the nightgown developed in the study. Consequently, the nightgown having these traditional Korean costume features were made for the evaluation. 4 different types of nightgowns were designed to be constructed. 20 professional clothing staff evaluated these 4 nightgowns developed and the existing nightgown used in the hotel industry. The results from the wearing test evaluation were: (1) to consider the stable closure of the gowns while wearing, the scores of the gowns developed were higher than the existing one. (2) the evaluations of the wearing comfort of the standing posture for the gowns developed and the existed were more or less similar but considering the lying down posture, the scores of the developed ones were significantly higher. (3) the gowns developed to have the wide-ham lines were considered more appropriate to the leg movement compared to the existing gown. The results from the fit and appearance test evaluation were: (1) throughout the all hight levels, the means of the gowns developed were higher than the existing gown's means in the most of the evaluation questions. (2) in the evaluation of the Korean traditional features, the gowns developed were more appropriate than the existing one. Consequently, the gowns developed were considered better to compare to the existing one in the context of postures, movements, comfort, appearance, fit, and design features.

Investigation into Conservatism of Various Fatigue Life Evaluation Procedures Using Round-Notched CT Specimens (원형 노치 CT 시편을 이용한 다양한 피로수명평가 절차의 보수성 평가)

  • Kang, Ju-Yeon;Chang, Dong-Joo;Kim, Jun-Young;Kim, Sang-Eun;Lee, Jong-Min;Huh, Nam-Su;Kim, Jong-Sung;Kim, Jin-Weon;Kim, Yun-Jae;Kim, Dae-Soo
    • Transactions of the Korean Society of Pressure Vessels and Piping
    • /
    • v.15 no.2
    • /
    • pp.19-30
    • /
    • 2019
  • In this study, to evaluate conservatism of various fatigue life evaluation procedures, fatigue tests were conducted using compact tension (CT) specimens with a round notch, made of A516 Gr.70 carbon steel and A240 TP304 stainless steel, under load-controlled cyclic condition. Experimental fatigue failure cycles were measured and compared with predicted fatigue lives using two different life evaluation methods; (1) Design-By-Analysis (DBA) procedure given in ASME B&PV Code, Sec. III, Div. 1, Subsec. NB-3200 and (2) structural stress-based approach provided in ASME B&PV Code, Sec. VIII, Div. 2, Part 5. To predict fatigue failure cycles, three-dimensional elastic finite element analysis was conducted. Fatigue lives were predicted by both design fatigue curve given in ASME B&PV Code, Sec. III, Div. 1, Appendices and best-fit fatigue curve suggested in NUREG/CR-6815 for the DBA procedure. Finally, fatigue lives evaluated by various methods were compared with test results, and then conservatism between each evaluation procedure was discussed.

Development of the CFRP Automobile Parts Using the Joint Structure of the Dissimilar Material (결합부 강화구조용 탄소복합재 자동차 부품 개발)

  • Ko, Kwan Ho;Lee, Min Gu;Huh, Mongyoung
    • Composites Research
    • /
    • v.31 no.6
    • /
    • pp.392-397
    • /
    • 2018
  • In this study, the development purpose is to replace steel Tie Rod of commercial vehicle to the carbon composite by a braiding process. CFRP tie rod was designed to meet the performance requirements of existing products by designing the cross section of the core for braiding weaving and the structural design of the joint between the core and the carbon fiber. The specimens were fabricated by braiding method and applied to structural analysis through test evaluation. The manufacturing process proceeded from braiding to infusion through post-curing process. The test evaluation of the final product was satisfactorily carried out by sequentially performing tensile test, torsion test, compression test and fatigue test. In addition, the weight of CFRP tie rod could be reduced by about 37% compared to existing products.

A Study on the Development of a MOOC Design Model

  • LEE, Gayoung;KEUM, Sunyoung;KIM, Myungsun;CHOI, Yoomi;RHA, Ilju
    • Educational Technology International
    • /
    • v.17 no.1
    • /
    • pp.1-37
    • /
    • 2016
  • The purpose of this study was to develop a MOOC design model that would improve the current practice of MOOC development in Korea by specifying easy-to-use course development procedures and guiding strategies. Following Richey and Klein (2007)'s conceptual model development procedure, the first step was to perform critical review of relevant literature and observe typical MOOC development processes. As a result, the initial model was developed. The second step was to conduct the expert review with five educational technology and MOOC researchers to secure the internal validity of the model. Based on the experts' suggestions, the model was revised and once again reviewed by the same experts. This process resulted in the development of the 2nd version of model. The third step was to carry out external validation research in order to test the effectiveness, efficiency, and usability of the model. A basic model may be confirmed or corrected based on examination of its results. Consequently, the model was elaborated as the final model. In the final model, 6 procedural phases and 9 specific steps were included. The six procedural phases are: Analysis (1st Iteration), Design, Development (Course Development), Implementation, Evaluation, and Analysis (2nd Iteration), a slight variation of ADDIE model. The specific steps include: 1) Goal Setting, 2) Environment Analysis, 3) Content Design, 4) Style Design, 5) Course Development, 6) Implementation Plan, 7) Course Implementation, 8) Summative Evaluation, and 9) Need Reflection. The study concluded with suggestions for further research and application of the MOOC design model.

A Study on the Development of Universal Design Evaluation System in the Public Space (공공공간의 유니버설디자인 평가체계 개발 연구)

  • Park, Cheongho
    • Journal of The Korea Institute of Healthcare Architecture
    • /
    • v.27 no.2
    • /
    • pp.25-37
    • /
    • 2021
  • Purpose: The main purpose of this study is to develop an evaluation system using the weighted-values of various users and experts for the public space to apply Universal Design, and additionally to find out the commonalities and differences by comparing the importance of evaluation indicators between users and expert groups. Method: A one-sample t-test was conducted to verify that the components of the public space to universal design application are suitable as evaluation indicators, and AHP(analytic hierarchy process) was performed to derive weight-values for the evaluation system. Results: The importance-values for the total 23 facilities to be used as evaluation indicators were derived by multiplying the weighted-values of each sector, domain, and facility by the disabled, non-disabled, and experts. To summarize the results of overall importance-values derived from the AHP, The disabled showed high-rank weighted-values in facilities of building sector > park & recreation sector > cross domain and low-rank weighted-values for sidewalk and roadway domain. The non-disabled showed high-rank weighted-values in facilities of park & recreation sector > roadway domain > building sector > cross domain and low-rank weighted-values for sidewalk domain. Experts mainly showed high-rank weighted-values in the cross domain and in facilities related to entry and movement to the target space in all sectors and domains. However, it showed moderate importance-values in the sanitary space. The disabled who are restricted to movement have a high demand for universal design in buildings consisting of vertical moving line, and non-disabled people who are not limited to physical movement have a high demand for universal design in parks and recreation sector for increased leisure time. It means that experts are important to recognize the principles of making space because they value cross domain and the key spaces and facilities for suitable the purpose of use. In addition, it can be inferred that non-disabled people have a higher demand for safety than disabled people due to their high importance in roadway domain and facilities of safety and disaster prevention. Implications: The significance of this study is the establishment of a quantitative universal design evaluation system for public spaces considering the different perspectives of the disabled and the non-disabled.

Utilization of 3D Virtual Garment Simulation Program Proposed for the Evaluation of Movement Fitness - Focusing on the Men's Jean Pants - (동작 적합성 평가를 위한 3차원 가상착의 프로그램 활용 방안 - 남성 진 팬츠를 중심으로 -)

  • Kim, Kyung-A;Uh, Mi-Kyung;Hong, Eun-Hee
    • Journal of the Korea Fashion and Costume Design Association
    • /
    • v.17 no.4
    • /
    • pp.55-66
    • /
    • 2015
  • The objective of this study is to propose a method by which movement fitness can be evaluated using a three-dimensional virtual garment simulation program. To this end, five types of jean pants for men were evaluated on the program by setting the avatars to make particular movements to examine the level of pressure on each body part. To verify whether the clothing pressure measurement produces valid and reliable results, virtual garment simulation program was utilized. The results indicated that there were significant differences in the levels of pressure on body parts depending on the type of test garment and motion. In addition, the clothing pressure measurement results were in line with the appearance evaluation results suggested by a previous study. Based on this set of results, the nomological validity of the clothing pressure measurement program used in this study was verified. Moreover, we employed an appearance evaluation along with the clothing pressure measurement to verify the reliability of the program; there was a high correlation between clothing pressure measurements and appearance evaluation measurements, indicating that measuring clothing pressures may well compensate for the limitations of appearance evaluation. We expect the results of this study to make valuable contributions in facilitating the digitalization of the fashion industry. Furthermore, this study also is significant in that it has suggested 3D virtual fitting programs as a solution to the long-criticized problem related to the evaluation of movement fitness in existing virtual garment simulation programs.

  • PDF

Test & Evaluation for the Configuration Optimization of Thrust Chamber in 70 N-class N2H4 Thruster (Part I: Pulse-mode Performance According to the Chamber Diameter Variation) (70 N급 하이드라진 추력기의 추력실 최적설계와 시험평가 (Part I: 추력실 직경변화에 따른 펄스모드 성능특성))

  • Kim, Jong Hyun;Jung, Hun;Kim, Jeong Soo
    • Journal of the Korean Society of Propulsion Engineers
    • /
    • v.18 no.1
    • /
    • pp.42-49
    • /
    • 2014
  • Performance evaluation was carried out for the 70 N-class hydrazine thruster whose design performance had been already verified. The pulse-mode firing test was conducted for the development model thrusters with various thrust chamber diameters. Evaluation was made by the performance parameters such as specific impulse, impulse bit, and characteristic velocity, etc: specific impulse and characteristic velocity were deteriorated as the thrust chamber diameter deviates from a standard model. Consequently, it is revealed that the performance characteristics of standard model is most superior among the test models.

The Development and Evaluation of Web-based Flash Content for Fighting Spirit Promotion in Patients with Cancer (암 환자 투병의지 증진을 위한 플래시 콘텐츠 개발 및 평가)

  • Oh, Pok-Ja
    • Korean Journal of Adult Nursing
    • /
    • v.20 no.3
    • /
    • pp.395-405
    • /
    • 2008
  • Purpose: The purpose of this study was to develop a Web-based flash content for fighting spirit promotion and to test its effect on cancer patients' fighting spirit. Methods: The 15-minute long Web-based flash content was developed using the following 5 process: analysis, planning, development, program operation and evaluation stages and utilized the multiple edition and revision processes from December 2005 to August 2006. The evaluation was done by one group pretest-posttest design. Study subjects were 17 cancer patients undergoing chemotherapy. The group were received a 2-week intervention, a day weekly, and measured the variables at baseline, 4 weeks later. The study was performed from August 2006 to February 2007 at a cancer center in Korea. Fighting spirit was measured by Mini-MAC(Mental Adjustment to Cancer). Data was analysed by descriptive statistics and paired t-test using SAS 9.13 program. Results: On the Web-based flash content, there are 4 menu bars that consisted of cancer diagnosis, symptom management, stress management, and cancer survivorship. The study group revealed significantly more fighting spirit than pre-test(t=-3.04, p=.008). Conclusion: This Web-based flash content can be utilized in psychosocial interventions for promoting fighting spirit in patients with cancer.

  • PDF

A Testing Method for URC Robot Software (URC 로봇 소프트웨어 시험 평가 방법 및 사례 연구)

  • Hwang, Sun-Myung;Chung, Yun-Koo
    • The KIPS Transactions:PartD
    • /
    • v.14D no.6
    • /
    • pp.657-664
    • /
    • 2007
  • URC robot offers necessary service anytime and anywhere by using a network to the robot, expanding the applicable service, keeping all the functions in itself, it undertakes functions for the causing problems through the network. URC software components are composed of HRI(Human Robot Interaction), robot action technology and others. We analyze the quality models based on ISO/IEC 9126, define URC components evaluation specification consists of 4 parts such as generic rule, instance rule, evaluation value and test method. And we define the quality process and test case design for URC, and show a testing and evaluation process for URC components.

Bustier Pattern Design and Wearing Test for Small Breasted Women (빈약 유방 여성용 뷔스티에 패턴설계 및 착의 평가)

  • Yi, Kyong-Hwa;Choi, Hyunok
    • Journal of Fashion Business
    • /
    • v.21 no.5
    • /
    • pp.109-121
    • /
    • 2017
  • In this study, we proposed the Bustier which improves the fit and functionality to compensate the physical defects by maximizing the volume up effect using the breast detailed measurements and shapes of the poor breast female subjects. Based on the preliminary study of the problem and preference according to the characteristics of the poor breast women consumers, we produced 1/2 volume mold cups based on the previous research. Respectively. A total of 5 subjects were selected, and new 3 bustier patterns based on the pattern making system of industry were created through direct measurement and shapes. As a result of verifying the usability of the developed bustier by testing the commercially available bustiers and the newly developed bustiers for 5 subjects. In order to compare the existing bustiers with the newly developed bustiers, the appearance evaluation by the expert, the evaluation of the adaptability and satisfaction by the subjects were utilized. Through this experiment, the newly developed bustiers were superior in the evaluation of the motion adaptability and wear comfort as well as appearance test. It was shown that the wear effect of the bustier with the longest back length was the best.