• Title/Summary/Keyword: Evaluations

Search Result 4,343, Processing Time 0.033 seconds

Evaluations of Velocity Response Spectrum of Seismic Base and Response Displacement for the Seismic Design of Underground Structures (지중구조물 내진설계를 위한 기반면의 속도 응답스펙트럼 및 응답변위 산정기법에 대한 연구)

  • 윤종구;김동수;유제남
    • Journal of the Korean Geotechnical Society
    • /
    • v.19 no.4
    • /
    • pp.211-221
    • /
    • 2003
  • The response displacement method is the most frequently used method for seismic design of underground structures. This method is pseudo-static method, and the evaluations of velocity response spectrum of seismic base and response displacement of surrounding soil are the most important steps. In this study, the evaluation of velocity response spectrum of seismic base according to the Korean seismic design guide and the simple method of calculating the response displacement were studied. It was found that velocity response spectrum of seismic base can be estimated by directly integrating the ground-surface acceleration response spectrum of soil type S$_A$, and the evaluation of the response displacement using double cosine method assuming two layers of soil profile shows the advantages in the seismic design.

The Influence of Adolescent-perceived Family Cohesion, Family Adaptability, and Family System Types on Parent-Adolescent Relationship (청소년이 지각한 가족응집성, 가족 적응성 및 가족체계 유형이 부모-청소년기자녀관계에 미치는 영향)

  • 전귀연
    • Journal of the Korean Home Economics Association
    • /
    • v.31 no.3
    • /
    • pp.157-173
    • /
    • 1993
  • The purpose of this study was to examine the influence of family cohesion, family adaptability, and family system type on parent-adolescent relationship. For this study, adolescents' perceptions of family cohesion, family adaptability, and parent-adolescent relationship quality were utilized. The 443 subjects were selected randomly from the second grade of middle and high schools in the city of Taegu. The survey instruments were AFCESⅢ and CAM/CAF. Factor analysis, Cronbach's α, MANOVA, and Scheff test were conducted for the data analysis. The major findings of this study were as follows: (1) Adolescents who perceived their family as high in cohesion reported the highest quality parent-adolescent relationship in comparison with other levels of cohesion. (2) There were differences in adolescents' evaluations of parent-adolescent relationship quality by their perception of family adapability levels. Namely, adolescents who perceived family adaptability to be low level-i.e. rigid family-showed the relatively severe problems in the parent-adolescent relationship. (3) Adolescents did show some differences by types of family system in their evaluations of parent-adolescent relationship quality. Adolescents reported the highest quality parent-adolescent relationship when they perceived their families as balanced family.

  • PDF

Evaluations and Attitudes of Workers in Low Temperature Storages of Discount Stores Toward their Uniforms (대형 할인 마트 저온 창고 작업자의 유니폼에 대한 평가와 태도)

  • Yoo, Hwa-Sook
    • Fashion & Textile Research Journal
    • /
    • v.13 no.4
    • /
    • pp.538-547
    • /
    • 2011
  • The purpose of this study was to examine the evaluations and attitudes of workers in low temperature storages of discount stores toward their uniforms by carrying out a field study and a survey. The effects of evaluation attributes on their attitudes were also investigated. In this study, the reference of the evaluation of uniforms was based on the concepts of serviceability, which implies the fitness for purpose of products and consists of durability, care, comfort and aesthetic appearance. Of 400 questionnaires, 253 of them were used for data analysis. The data were analyzed by descriptives, t-test, factor analysis, reliability test and regression analysis with SPSS 12.0. As a result, it showed that workers have set low values on easy care, physiological comfort, aesthetic appearance and durability among the evaluation attributes. In attitudes toward the uniforms, emotional attitude was negative whereas behavioral attitude positive. It appeared that the evaluation attributes had influence on the attitude toward the uniforms and esthetic appearance among the attributes had the biggest effects on the workers' attitude. In conclusion, it was found that the discount store uniforms should be improved in the aspects of easy care and physiological comfort, and focused on the esthetic appearance for workers' positive attitudes to their uniforms.

Performance Evaluation of Lane Keeping Assistance System (도로주행환경을 고려한 차선유지지원장치 성능 평가)

  • Woo, Hyungu;Yong, Boojoong;Kim, Kyungjin
    • Journal of Auto-vehicle Safety Association
    • /
    • v.6 no.2
    • /
    • pp.29-35
    • /
    • 2014
  • Lane Keeping Assistance System(LKAS) is a kind of Advanced Driver Assistance Systems(ADAS) which are developed to automate/ adapt/ enhance vehicle systems for safety and better driving. The main system function of LKAS is to support the driver in keeping the vehicle within the current lane. LKAS acquires information on the position of the vehicle within the lane and, when required, sends commands to actuators to influence the lateral movement of the vehicle. Recently, the vehicles equipped with LKAS are commercially available in a few vehicle-advanced countries and the installation of LKAS increases for safety enhancement. The test procedures for LKAS evaluations are being discussed and developed in international committees such as ISO(the International Organization for Standardization). In Korea, the evaluations of LKAS for vehicle safety are planned to be introduced in 2016 KNCAP(Korean New Car Assessment Program). Therefore, the test procedures of LKAS suitable for domestic road and traffic conditions, which accommodate international standards, should be developed. In this paper, some bullet points of the test procedures for LKAS are discussed by extensive researches of previous documents and reports, which are released in public in regard to lateral test procedures including LKAS and Lane Departure Warning System(LDWS). Later, it can be helpful to make a draft considering domestic traffic situations for test procedures of LKAS.

A Comparative Analysis of Virtual Advertising and PPL: Focusing on Consumer Evaluation of Advertising Attributes and Ad Effectiveness (가상광고와 간접광고에 대한 비교 연구: 광고속성과 광고효과를 중심으로)

  • Um, Kihong;Lim, Byunghoon;An, Daechun;Suh, Woojong
    • Knowledge Management Research
    • /
    • v.16 no.1
    • /
    • pp.193-208
    • /
    • 2015
  • With the rapid growth in the use of digital advertising media among consumers, there is an increasing interest in the utilization of virtual advertising and PPL as an alternative to traditional television advertising. Nonetheless, few studies have compared the effects of these new advertising platforms, still lacking knowledge on their relative effects for maximizing advertising effectiveness. This study, thus, intends to compare virtual advertising and PPL with respect to advertising effectiveness (i.e., consumer evaluations of advertising attributes, brand attitudes, and purchase intentions), controlling for the level of product involvement. An experiment was conducted with a sample of 360 participants and actual ads were used as test stimuli. According to the results, consumers exhibit more favorable evaluations on all the three advertising attributes (i.e., entertainment, informativeness, and irritation) for high-involvement products, whereas, for low-involvement products, virtual advertising is perceived to be more irritating than PPL. In particular, the effect of informational value of virtual advertising on brand attitudes was found to be most significant. In addition, for high-involvement products, virtual advertised products. Advertising practitioners may have to consider these results and fully utilize the advantages of virtual advertising and PPL in order to achieve maximum advertising effectiveness.

A Study of Consumer Evaluations and Preferences for Men's Fashion Style Image (남성복 스타일 이미지에 대한 평가와 선호에 관한 연구)

  • Oh, Hee-Sun
    • Fashion & Textile Research Journal
    • /
    • v.4 no.1
    • /
    • pp.47-55
    • /
    • 2002
  • This paper is to study pertinent consumer evaluations and preferences of fashion depending upon human sensibility. Focus is placed on quantifying consumer's sensibility through the sensibility analysis of men's fashion. The subject are 227 male and female university students of who take the course of "Modern Life and Fashion" and "Understanding of Colors" in the OCU Cyber University. Data has been collected by survey method and subsequently analyzed and interpreted. To measure consumer's consuming sensibility, G-Sensibility tool developed by 'Fuji Central Institute' has been employed. The results of the analysis of ANOVA and MANOVA show significant differences among the following 5 styles: Active style G2, Open-minded style of G-3, Mania style of G4, Sensitive and emotional style of G5. According to ${\chi}^2$ test, the results show that the distinction of sex and their interests in fashion are significant different. The evaluation of men's fashion, according to Multi-dimensional test, shows a variety of differences according gender and G sensibility styles. These varied distinctions are illustrated statistical in Picture 1, Picture 2, Picture 3, Picture 4, Picture 8, and picture 10. Based art the results, a follow-up study to develop the case study and the apply it's results are recommended to produce products placed in the market.

A Research on Improving School Evaluation System for Quality School Education (학교교육 질 제고를 위한 학교평가 체제 개선 연구)

  • Won, Hyo-Heon
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.26 no.1
    • /
    • pp.223-235
    • /
    • 2014
  • The purpose of this study is to investigate school administrators' perceptions of school evaluation, examining the current situation in the hope of finding solutions to the problems caused by current evaluation. The subjects of this research were consisted of 230 middle and high school administrators in Busan. The instrument used for the study were the questionnaire included 27 questions concerning the current situation, the problems and improvements of school evaluation. The results of this study were as followed: (1) school administrators generally have a positive attitude toward school evaluations. But, they thought need to enhance their leadership qualities so that teachers can feel more positive about participating in school evaluation. (2) school administrators have to show more of an interest in the planning, performance and the use of the results of evaluation. (3) to enhance the quality of teaching practices in school they have to improve their methods for providing feedback of the results of evaluations. (4) the biggest problem related to school evaluation is the lack of quality and professional knowledge of the evaluation teams. And each school develops a unique curriculum and focuses on the improvement of instruction methods.

Experimental and Numerical Analysis of Warm Mix Asphalt Pavement prepared using Steel Slag and RAP (제강슬래그와 폐아스팔트를 활용한 중온 아스팔트 포장의 거동 분석)

  • Lee, Hojoung;Jang, Dongbok;Kim, Hyunwook;Kim, In-TaI;Kim, Kibyung;Lee, Jaehoon
    • International Journal of Highway Engineering
    • /
    • v.19 no.2
    • /
    • pp.55-65
    • /
    • 2017
  • PURPOSES : This study aimed to analyze the experimental and numerical behavior of warm mix asphalt pavement prepared using steel slag and RAP and to conduct economic analysis of pavement construction. METHODS : For developing high performance asphalt pavement, we performed three evaluations: fundamental analysis, experimental testing, and 3D finite element analysis. In particular, 3D finite element analysis was conducted on several pavement structures by adopting the results of experimental tests. RESULTS : Through the various evaluations, it was established that steel slag was effective for use as asphalt mixture aggregate. Moreover, asphalt mixture constituting steel slag and RAP demonstrated higher performance behavior compared with conventionally used asphalt mixture. Furthermore, based on the 3D FE modeling, we established that the developed asphalt pavement constituting steel slag and RAP can be utilized for thin layer pavement with comparable performance behavior. CONCLUSIONS :Warm mix asphalt pavement prepared using steel slag and RAP is more competitive and economic compared to hot-mix asphalt pavement. Moreover, it can be applied for preparing thin layer asphalt pavements with reasonable performance. The developed warm mix asphalt pavement prepared using steel slag and RAP can be an alternative pavement type with competitive performance based on the reasonable economic benefit it provides.

New Development of Two-dimensional Sound Quality Index for Brand Sound in Passenger Cars (승용차 브랜드 사운드를 위한 이차원 음질 인덱스 개발)

  • Jo, Byoung-Ok;Park, Dong-Chul;Lee, Min-Sub;Jung, Seung-Gyoon;Lee, Sang-Kwon
    • Transactions of the Korean Society for Noise and Vibration Engineering
    • /
    • v.16 no.5 s.110
    • /
    • pp.457-469
    • /
    • 2006
  • In automotive engineering, the brand sound is one of the important advantage strategies in a car company. For the design of brand sound, the selection of descriptive word for a car sound is one of major works in automotive sound quality research. In this paper, booming and rumbling sound, which are professional words used by sound and vibration engineers are used for the design of brand sound. We employed sound quality metrics, which are used in the psychoacoustics. By most research results, the relationship between subjective evaluations and sound quality metrics has nonlinear characteristics. In order to correlate these subjective evaluations with sound quality metrics, the artificial neural network technology has been applied to two-dimensional sound quality index for a passenger car. These indexes are used for 46 passenger cars, which are samples of the famous cars around the world. Also a preference evaluation for car sound was carried out by sound and vibration engineers. We coupled this preference with booming and rumbling sounds by using artificial neural network. In future, the two dimensional sound and preference index will be very useful to develop brand sound in passenger cars.

Assessment of Medical Students in Clinical Clerkships (의과대학 임상실습에서의 학생평가방법: 과거, 현재 및 제언)

  • Lee, Sang Yeoup;Im, Sun Ju;Yune, So Jung;Baek, Sunyong;Woo, Jae Seok
    • Korean Medical Education Review
    • /
    • v.15 no.3
    • /
    • pp.120-124
    • /
    • 2013
  • The clinical clerkship focuses students on developing their ability to perform comprehensive diagnosis and management of patients with common undifferentiated problems by the integration of knowledge and clinical reasoning. Therefore, the clerkship evaluation system should assess their actual problem solving and professional behavior. However, concern remains that clerkship evaluations are imprecise and highly variable. This review is designed to provide faculty members with concepts, options, and a methodology to actively teach and evaluate the clinical clerkship, as well as offer encouragement and inspiration to medical students. We reviewed past and current clinical clerkship evaluations and discuss several tips to improve clinical excellence such as continuity, transparency of the evaluation process, a faculty development program, practical examination of clinical skills, implementation of a checklist for recording exposure and skills, providing prompt and constructive feedback to students, self-evaluation of professional performance, varying multi-faceted assessment combinations, being outpatient clinic-centered, and having dedicated faculty members who give students one-on-one contact with a preceptor.