• Title/Summary/Keyword: post 2020

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A Study on the Post Evaluation for University Public Space Renovation based on Analysis of Students' preference (대학생 선호도 분석 기반 대학 공용공간 리노베이션의 사후평가에 관한 연구)

  • Choi, Ho-Soon
    • Journal of the Korean Institute of Educational Facilities
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    • v.27 no.3
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    • pp.15-23
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    • 2020
  • Nowadays, many educational facilities are being renovated. However, due to the absence of a system for post renovation of educational spaces, users are less satisfied with the spaces after the renovation and there is a limit in establishing future directions for improving educational space renovation. From this point of view, this study was conducted to increase the users' satisfaction in renovation space planning of educational spaces and to establish a system for management after renovation. As a specific research method, the space preference of students was used to evaluate the space after renovation. By researching the opinions of the students who use the most educational space, not only the direction of the renovation plan of the future educational space can be given but also the user's opinion can be reflected in the spatial plan in detail. In terms of management of future educational spaces, this study can be used as a basic study for developing post evaluation indicators for renovation of educational facilities.

Finite element based post-buckling analysis of refined graphene oxide reinforced concrete beams with geometrical imperfection

  • Mirjavadi, Seyed Sajad;Forsat, Masoud;Yahya, Yahya Zakariya;Barati, Mohammad Reza;Jayasimha, Anirudh Narasimamurthy;Khan, Imran
    • Computers and Concrete
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    • v.25 no.4
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    • pp.283-291
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    • 2020
  • The present paper researches post-buckling behaviors of geometrically imperfect concrete beam resting on elastic foundation reinforced with graphene oxide powders (GOPs) based on finite element method (FEM). Distribution of GOPs are considered as uniform and linearly graded through the thickness. Geometric imperfection is considered as first buckling mode shape of the beam, the GOP reinforced beam is rested in initial position. The material properties of GOP reinforced composite have been calculated via employment of Halpin-Tsai micromechanical scheme. The provided refined beam element verifies the shear deformation impacts needless of any shear correction coefficient. The post-buckling load-deflections relations have been calculated via solving the governing equations having cubic non-linearity implementing FEM. Obtained findings indicate the importance of GOP distributions, GOP weight fraction, matrix material, geometric imperfection, shear deformation and foundation parameters on nonlinear buckling behavior of GOP reinforced beam.

Numerical analysis of thermal post-buckling strength of laminated skew sandwich composite shell panel structure including stretching effect

  • Katariya, Pankaj V.;Panda, Subrata Kumar
    • Steel and Composite Structures
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    • v.34 no.2
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    • pp.279-288
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    • 2020
  • The computational post-buckling strength of the tilted sandwich composite shell structure is evaluated in this article. The computational responses are obtained using a mathematical model derived using the higher-order type of polynomial kinematic in association with the through-thickness stretching effect. Also, the sandwich deformation behaviour of the flexible soft-core sandwich structural model is expressed mathematically with the help of a generic nonlinear strain theory i.e. Green-Lagrange type strain-displacement relations. Subsequently, the model includes all of the nonlinear strain terms to account the actual deformation and discretized via displacement type of finite element. Further, the computer code is prepared (MATLAB environment) using the derived higher-order formulation in association with the direct iterative technique for the computation of temperature carrying capacity of the soft-core sandwich within the post-buckled regime. Further, the nonlinear finite element model has been tested to show its accuracy by solving a few numerical experimentations as same as the published example including the consistency behaviour. Lastly, the derived model is utilized to find the temperature load-carrying capacity under the influences of variable factors affecting the soft-core type sandwich structural design in the small (finite) strain and large deformation regime including the effect of tilt angle.

A Study on the Estimation of Remaining Fisheries Damages Considering the Recovery Periods of Fisheries Resource after the Completion of Undertaking Yeongsan River Project (영산강 살리기 사업 이후의 자원회복기간을 고려한 잔존어업피해추정에 관한 연구)

  • Choo, Hyun-Gi;Jo, Mun-Kwan;Kim, Ki-Soo
    • The Journal of Fisheries Business Administration
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    • v.51 no.4
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    • pp.1-18
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    • 2020
  • The paper aims to explore existence and degree of remaining fisheries damages after the completion of undertaking the Four Major Rivers Project focusing on the case of Yeongsan river. The paper seeks to show the necessity of consideration of periods of fishery resources recovery in the estimation of ex-post fisheries damages of the project by inferring the analysis of the annual variation of environmental indicators in the river. Therefore, the paper suggests three years of remaining periods of fisheries damages of the project utilizing the variation trend of ex-ante and ex-post annual output data of inland fisheries in Jeonnam province and individual catch of fisheries. In the measurement of the annual degree of fisheries damages during periods of fishery resources recovery, the paper attempts to suggest the method of comparision of day catch data per vessel between ex-ante and ex-post periods of the project, which were investigated by the same institute. Here the paper tries to make correction of ex-post catch data for holding the same catching condition as ex-ante situation by adopting the concept of competitive intensity of catching which was derived from the decreasing rate of number of fishing households in the area of Yeongsan river.

The Effect of 24-week Sensory Integration Activity Training on fitness of Children with Intellectual disability

  • CHOI, Youn Jin;KIM, Myung Gyun;MOON, Hwang Woon
    • Journal of Sport and Applied Science
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    • v.4 no.4
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    • pp.1-6
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    • 2020
  • Purpose: The purpose of this study is to identify the effect of 24-week sensory integration activity training on fitness of children with intellectual disability. Research design, data, and methodology: The subjects were 10 children with intellectual disability, 60 min training of sensory integration activity for 24 weeks. Obesity, cardiovascular endurance, muscular strength and muscle endurance were measured pre and post training. Frist, characteristics of subjects were measured with age, height, weight, IQ and SQ. Second, the subjects then performed sensory integration activity training for 24 weeks. Last, weight, strength, endurance, cardiovascular endurance and flexibility were measured. Data were calculated for average and standard deviation by SPSS 25.0 statistic program, and dependent sample t-test was processed to analyze the change between pre and post training. All statistical significance level was set to 0.5. Results: The result was shown that weight, strength and endurance changes between pre and post were significant. However, cardiovascular endurance, flexibility changes between pre and post were not significant. Conclusions: The lack of training frequency of 60 minute per week were acknowledged per week from this result. In future research, increased intensity and frequency are need for an in-depth and meaningful study and the measured data can be used basic information for the study.

Post-2020, 국가 온실가스 감축목표 경제 현실을 반영해야

  • Choe, Gwang-Rim
    • Bulletin of Korea Environmental Preservation Association
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    • s.418
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    • pp.12-15
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    • 2015
  • 국제 기후변화협상에 따라 세계 주요 국가들은 2020년 이후 온실가스 감촉목표를 UN에 제출하고 있다. 우리나라는 2030년 배출전망 대비 37% 감축이라는 국가 온실가스 감축목표를 지난 6월 30일 확정하였다. 앞으로 이를 달성하기 위하여는 여러가지 경제현실을 반영하여 정부가 계획한 주요 감축 수단들이 철저히 이행되도록 전폭적인 지원이 뒤따라야 한다.

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Economic and Environmental Implications of the Voluntary GHG Reduction Targets of Major Countries (세계 주요국의 자발적 온실가스 감축목표가 경제와 환경에 미치는 파급효과와 시사점)

  • Lim, Jae-Kyu
    • Journal of Environmental Policy
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    • v.9 no.3
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    • pp.115-142
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    • 2010
  • The voluntary mid-term greenhouse gas(GHG) emission reduction targets for 2020 among major developed and developing countries were evaluated by using the global computable general equilibrium(CGE) model. The GHG emissions of developed countries were estimated to be reduced by 14.0% from 1990 level, which implies that the GHG reduction targets of developed countries should be strengthened to reach agreement in future post-Kyoto negotiations. The voluntary participation of developing countries for GHG emissions reduction contributed to global GHG emissions reduction by 15.9% from 1990 levels, which were led by the participation of China and India. These outcomes imply that the reinforcement of GHG emission reduction targets in developed countries and the wider participation of developing countries will be necessary for the environmental effectiveness of the post-Kyoto regime. Emissions reduction based on voluntary targets will decrease the global real GDP by 1.18%.

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Malignancy after Pediatric Kidney Transplantation: The 30-Year Experience of a Single Center

  • Jung, Jiwon;Park, Young Seo;Han, Duck Jong
    • Childhood Kidney Diseases
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    • v.24 no.2
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    • pp.75-82
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    • 2020
  • Objectives: We aimed to investigate the incidence, manifestations, and outcomes of malignancy after pediatric kidney transplantation (KT) at our center over 30 years. Methods: We retrospectively reviewed the medical records of 155 patients under 18 years of age who underwent KT between January 1990 and February 2020 at Asan Medical Center. Results: Twelve patients (7.7%) were diagnosed with a malignancy after KT. Malignancy was diagnosed after a mean period of 6.4±5.9 years (median 4.6, range 0.5-20.6 years) after KT. Nine (75.0%) of the 12 cancer patients were diagnosed with post-transplant lymphoproliferative disease (PTLD), and the other three had papillary thyroid cancer, mucoepidermoid cancer of the hard palate, and T-cell acute lymphoblastic leukemia, respectively. PTLD was diagnosed within a mean of 3.7±3.4 years (median 3.7, range 0.5-9.8 years) after KT. Five patients diagnosed with PTLD were cured without recurrence. Three patients with PTLD died from the disease, and one patient with mucoepidermoid cancer from a non-PTLD malignancy died after progression, despite surgical resection and chemotherapy. Three (33.3%) of the nine survivors progressed to end-stage renal disease (ESRD) after completing cancer treatment. No patient with post-transplant malignancy (PTM) experienced critical renal deterioration during cancer treatment. Conclusion: PTLD was the most common PTM, occurring at 5.8% of the pediatric KT patients after KT in our center. Careful follow up is needed particularly considering the risk of PTLD after KT in children.

The Effect of Color Therapy Program on Psychological Characteristics and Color Expression of Adolescents (컬러테라피프로그램이 청소년의 심리적 특성과 색채표현에 미치는 영향)

  • Lee, Kyoung Hee;Lee, Seunghyun
    • Fashion & Textile Research Journal
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    • v.22 no.6
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    • pp.789-802
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    • 2020
  • This study analyzes the experiences of a color therapy program that uses color and fashion directing to influence the psychological characteristics of adolescents, such as emotional intelligence, self-efficacy, and color expression. The subjects of this study were 15 adolescents who participated in B-City Winter School (January 6-15, 2020). Pre- and post-tests for emotional intelligence and self-efficacy were conducted to confirm the effect of the color therapy program that indicated a significant difference at the p<.05 level. Statistical significance was confirmed through the GEE model for formal characteristics used in pre/post and fashion-directed color expression. Peter pre- and post-changes in vocabulary emergence were investigated with a Word Cloud analysis using R program 4.0.2 that extracted the lower and upper categories. The significance of this study is that by expressing both color expression and fashion direction together, a program was provided for adolescents to have richer emotional experiences and career-related experiences. This study examined changes within a short period of time in 15 subjects; consequently, a follow-up in-depth qualitative analysis of the program effect and a post-testing study on maintaining the long-term effect is expected to secure further validity and usefulness of the study results. In addition, new studies are expected to contribute to the development of differentiated fashion-related education programs.