• Title/Summary/Keyword: Local effect

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Small-scale effect on the forced vibration of a nano beam embedded an elastic medium using nonlocal elasticity theory

  • Belmahi, Samir;Zidour, Mohammed;Meradjah, Mustapha
    • Advances in aircraft and spacecraft science
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    • v.6 no.1
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    • pp.1-18
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    • 2019
  • This present article represents the study of the forced vibration of nanobeam of a single-walled carbon nanotube (SWCNTs) surrounded by a polymer matrix. The modeling was done according to the Euler-Bernoulli beam model and with the application of the non-local continuum or elasticity theory. Particulars cases of the local elasticity theory have also been studied for comparison. This model takes into account the different effects of the interaction of the Winkler's type elastic medium with the nanobeam of carbon nanotubes. Then, a study of the influence of the amplitude distribution and the frequency was made by variation of some parameters such as (scale effect ($e_0{^a}$), the dimensional ratio or aspect ratio (L/d), also, bound to the mode number (N) and the effect of the stiffness of elastic medium ($K_w$). The results obtained indicate the dependence of the variation of the amplitude and the frequency with the different parameters of the model, besides they prove the local effect of the stresses.

Characteristics of Local Vibration Modes of the Aluminium Extruded Panels for Rail Road Vehicles (철도 차량용 알미늄 압출재의 국부진동 모드특성)

  • 김석현;장호식;김정헌
    • Journal of the Korean Society for Railway
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    • v.4 no.3
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    • pp.87-93
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    • 2001
  • Characteristics of the local vibration modes of an aluminium extruded panel are investigated by the finite element analysis and modal testing. Practical methods to increase the damping of the local resonances are proposed. Effects by filling urethan foam in the core cavity and by coating tar on the panel surface are compared by experiments. Modified panel structures to shift the local resonance frequency band are proposed. The results of the study are utilized to predict the severe local resonances in the aluminium extruded panels and prevent their undesirable effect on the sound insulation.

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Development of Environmental Experience Programs Using Local Environmental Resources (지역 환경 자원을 활용한 환경체험 프로그램의 개발)

  • Lee, Sang-Gyun
    • Journal of Environmental Science International
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    • v.20 no.3
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    • pp.351-360
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    • 2011
  • The purpose of this study is to find out effects of environmental expression programs using environmental resources of the areas in which students live so that it verified the effects by developing environmental expression programs using local environmental resources and then teaching the programs to local students. The findings are as follows. First, environmental experience programs using local environmental resources help elementary school students Environmental Literacy. Second, the programs have a positive effect on changes in the students' Pro-environmental Attitude.

Analysis of Elastic Local Buckling of an Orthotropic Compression Member with Asymmetric Edge Stiffeners (비대칭연단보강재가 설치된 직교이방성 압축재의 탄성 국부좌굴해석)

  • 최원창;정상균;윤순종
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2000.11a
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    • pp.5-8
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    • 2000
  • This paper presents the analytical investigation pertaining to the local buckling behavior of orthotropic open section thin-walled compression members with asymmetric edge stiffeners. In the analysis, 3 different cases of the second moment of inertia are considered to find the asymmetric edge stiffener effect on the local buckling strength. The analytical study results are presented in the graphical form so that the edge stiffener effects on the local buckling strength can be easily found.

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An Analysis on the Effect of the University in Area Development (대학이 지역발전에 미치는 영향 -천안시를 중심으로-)

  • Park, Jong-Gwan
    • The Journal of the Korea Contents Association
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    • v.11 no.6
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    • pp.360-371
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    • 2011
  • This study dealt with the effect of the university in area development to Cheonan city. This study ran parallel literature investigation and actual proof investigation. Questionnaires 394 enforce frequency analysis in SPSS 15.0 versions. University positive effect on local community is smooth supply of human capital in local community, increase of regional income, improvement of area image by expanded education opportunities, supply of various university facilities in local communities etc. Contradictory effect is expansion of gap for areas that young persons in local community taken to education of good quality leave other local community, occurrence of conflict by collision of new culture and culture of area characteristic. Role of university for area development is role of help consultation, symbolic role, educational role etc. But the weighed role is leading role which university leads area development. Finally, the prompting methods of university for local community development .must accomplish interchange of operational mode with high quality human resources activating removal of manpower between arithmetic.

The Effect of R&D Investment on Local Economies Using Dynamic Panel Estimator in Korea (동태적 Panel 분석을 통한 R&D투자의 지역효과 분석)

  • Yang, Ji-Chung
    • International Area Studies Review
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    • v.18 no.3
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    • pp.175-201
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    • 2014
  • This paper analyses the effect of R&D investment on local economies. R&D investment contributes to the regional local economy by increasing employment and production activity of the investees. The investees may end up with increased productivity, sales and employment. At the regional R&D level, the central government R&D fund and firm self R&D budget will be the source of R&D investment. Further positive effects are inter-related with local industries. This study carried out an empirical analysis on the effect of R&D investment on local economies using Korean panel data after comparing international literatures. The dynamic panel estimator is used to estimate an autoregressive model with lagged dependent variable. Using the Da Silva method, mixed variance-component moving-average error process is estimated and selected. R&D investment is very important factor to improve the productivity of a region and the size of the effect is dependent on the time periods within the Korean economic history.

Studies on the Local Irritation of DA-5018, a New Capsaicin Derivative (새로운 캅사이신 유도체 DA-5018의 국소자극성에 관한 연글)

  • 손문호;배은주;신명수;김희기;김순희;김원배;양중익
    • Biomolecules & Therapeutics
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    • v.5 no.2
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    • pp.150-157
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    • 1997
  • Capsaicin cream has been used to attenuate the pain associated with diabetic neuropathy, rheum-atoid arthritis, osteoarthritis and postherpetic neuralgia. But its common side effect, local irritation, limits the use of it and there is still a need for a new analgesic devoid of this side effect. This study was conducted to compare the local irritant effect of DA-5018, a new capsaicin derivative, with that of capsaicin in various animal models and human beings. Capsaicin, applied topically to the mouse ear, produced dose-dependent increase of ear volume and the frequency of ear scratching behavior in mice. Neither ear volume nor scratching behavior was affected by DA-5018. In eye wiping test of rat, DA-5018 was 10 times less irritant than capsaicin. Capsaicin administered intradermally into the rat paw elicited paw lick/lift response with a potency which was three times that of DA-5018. Zostrix-HP (0.075% capsaicin cream), but not DA-50180.3% cream, increased ear volume of rat and induced thermal hyperalgesia in normal and carrageenan inflamed paws. Six day-treatment of Zostrix-HP failed to develop tolerance against this thermal hyperalgesia. In human beings, Zostrix-HP produced burning sensation and itching in more than 90% of volunteers involved and its maximum irritant effect was significantly higher than that of DA-5018 cream. These results suggest that local irritation and burning sensation produced by DA-5018 is much less than capsaicin.

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The Mediation Effect of Job Burnout on the Relationship between Role Stress and Depression among Local Clinic Medical Doctor : Gender's Moderated Mediation Effect (개원의 역할스트레스와 우울 간 관계에서 직무소진의 매개효과 : 성별의 조절된 매개효과)

  • Song, Young-Ah;Kim, Ji-Hyeon
    • The Korean Journal of Health Service Management
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    • v.13 no.2
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    • pp.55-66
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    • 2019
  • Objectives: The objective of the present study was to investigate whether gender mederates the mediating effect of job burnout on the relationship between role stress and depression among medical doctors in Local clinics in South Korea. Methods: Questionnaires that assess role stress, job burnout, and depression were administered to. 265 medical doctors who worke in local clinics in Seoul, Busan, Daejeon, and Gyeonggi provinces. Data analysis was conducted using the PROCESS macro in Statistical Package for the Social Sciences(SPSS). Results: Job burnout mediated the relationship between role stress and depression. Further, gender moderated the relationship between role stress and job burnout. Finally, gender moderated the mediating effect of job burnout on the relationship between role stress and depression. Conclusions: On the basis of the emergent findings, effective coping strategies that can alleviate role stress are articulated. However, the findings also suggest that the selection of a suitable intervention must be based on the gender of the medical doctor.

Analysis of Local Tax Performance Through Tax Capacity and Tax Effort in Indonesia 2014-2018

  • RAFSANJANI, Ali Hadi;AGUSTINA, Neli
    • Asian Journal of Business Environment
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    • v.12 no.2
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    • pp.43-53
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    • 2022
  • Purpose: This study aims to analyze the performance of local taxes in Indonesia through the estimation of tax capacity and tax effort, as well as classifying provinces based on the estimated value of tax capacity and tax effort. Research design, data and methodology: this study uses panel data of 34 provinces in Indonesia for the period of 2014-2018. The analytical method used in the tax capacity model is panel data regression to explain the factors that influence tax performance. Tax effort is estimated by the ratio of tax to tax capacity. Results: The results of the analysis show that gini ratio and regional expenditures have a significant positive effect on the tax ratio, while the share of GRDP in the manufacturing sector and HDI has a significant negative effect on the tax ratio. Based on the results, there are 19 provinces that have low tax capacity and 16 provinces that have low tax effort. Conclusions: The development of local tax performance tends to fluctuate with an average of 1.24 percent per year. Gini ratio and regional expenditure have a significant positive effect on the tax ratio, while the share of GRDP in the manufacturing sector and HDI have a significant negative effect on the tax ratio.

A Study on the Effect of Local Food Product Attributes on Satisfaction and Purchase Intention

  • Gi-Pyoung, KIM;Chang-kwon, YOO
    • The Korean Journal of Food & Health Convergence
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    • v.9 no.2
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    • pp.7-18
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    • 2023
  • Through these research results, I would like to present some implications for promoting and revitalizing local food sales in Daejeon and establishing a local food system. First, in terms of local food direct stores, when establishing a local food store, location conditions should be considered. If the location cannot be changed, the quality of agricultural products should be improved to improve consumer satisfaction and purchase intention so that consumers can directly feel the value of the product. Second, efforts at the local government level are needed to improve the stability of local food. There are still many consumers who are not properly aware of local food. It is necessary to improve consumers' interest in the value of local food by providing education including social and environmental information on the production and distribution process of local food. Third, policy efforts on local food are needed. It is necessary to introduce and reorganize the local food certification system to emphasize the stability of local food to consumers and form trust. Finally, for the continuous development of local food, research on the satisfaction and purchase intention of local food consumers must be continuously conducted.