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      • KCI등재

        시어의 언어적 분석의 효용성에 관하여

        신희삼 한국어의미학회 2010 한국어 의미학 Vol.32 No.-

        Literature is the art of language. Here’s a stylistic analysis of linguistic approaches to the efficiency with which that was studied. In chapter 2, statistical analysis and nonstatistical analysis were discussed. In statistical analysis, quantitative analysis of phonological and lexical dealt. Items syllable, coda consonants, ivowel, bisexual bar. Nasal, liquid, etc coda plosive. Analyzed and compared with the traditional style. In analyzing patterns of individual word nonstatistical two items dealt with the honorific. In chapter 3, the limits of linguistic analysis has been developed with the profession to discuss. Linguistic analysis, statistical analysis of the benefits of giving unity to the whole works, and works will benefit analysis. Nonstatistical analysis of the benefits of the writers and the overall image of the work and aesthetic interpretation is that a key role. Linguistic approach to the city, despite the many advantages, has some weaknesses and limitations. Stylistic analysis of the target audience without exception, only in the eyes of writers and analysts is overlooking. The stylistic analysis of the future response of the readers of scientific, objective and based on this new style of data analysis techniques in the direction of the development will have to.

      • KCI등재

        Correlation Between Tractor Variables and Loan Support Limit in South Korea Through Regression Analysis

        황석준,김정훈,장문경,남주석 한국농업기계학회 2022 바이오시스템공학 Vol.47 No.3

        Purpose The correlation between the major variables of tractors and the loan support limit was investigated through regression analysis. Methods The loan support limit according to engine power,weight, engine displacement, width, length, and height was surveyed for 118 tractors commercially available in South Korea. Simple linear regression analysis was performed to understand the effects of the individual variables on the loan support limit. Furthermore, the major variables with a high correlation with the loan support limit were selected through Pearson correlation analysis, and multiple linear regression analysis was performed. Results Simple regression models and multiple regression models were derived to predict the tractor loan support limit. The coefficient of determination and the root mean square error were calculated to determine the accuracy of each regression model. In the simple linear regression analysis, the coefficient of determination of the engine-power-based regression model was the highest (0.87), followed by weight, engine displacement, width, length, and height. Similarly, the root mean square error was the smallest in the engine-power-based regression model at 3,770,370 KRW. As a result of performing multiple linear regression analysis using engine power and weight, which exhibited a correlation coefficient of 0.8 or higher in Pearson correlation analysis, the coefficient of determination and the root mean square error were 0.88 and 3,699,940 KRW, respectively. Conclusion As the multiple regression model with engine power and weight as variables has a high coefficient of determination and small root mean square error, it is considered the most suitable for predicting the tractor loan support limit. The developed prediction model can save time and greatly help the decision-making process of farmers for purchasing agricultural tractors.

      • KCI등재

        산업안전보건법 허용기준 대상물질의 허용기준 개정을 위한 유해성,위험성 평가 및 사회적 비용,편익 분석

        김기연 ( Ki Youn Kim ),오성업 ( Sung Eop Oh ),홍문기 ( Mun Ki Hong ),이권섭 ( Kwon Seob Lee ) 한국산업보건학회 2015 한국산업보건학회지 Vol.25 No.2

        Objectives: An objective of this study was to perform a risk assessment and social cost-benefit analysis for revising permissible exposure limits for seven substances: Nickel(Insoluble inorganic compounds), benzene, carbon disulfide, formaldehyde, cadmium(as compounds), trichloroethylene, touluene-2,4-diisocyanate. Materials and Methods: The research methods were divided into risk and hazard assessment and cost-benefit analysis. The risk and hazard assessment for the seven substances consists of four steps: An overview of GHSㆍMSDS(1st), review of document of ACGIH``s TLVs (2nd), comparison between international occupational exposure limits and domestic permissible exposure limits(3rd), and analysis of excess workplace and excess rate for occupational exposure limits based on previous work environment measurement data(4th). Total cost was estimated using cost of local exhaust ventilation, number of excess workplace and penalties for exceeding a permissible exposure limit. On the other hand, total benefit was calculated using the reduction rate of occupational disease, number of workplaces treating each substance and industrial accident compensation. Finally, the net benefit was calculated by subtracting total cost from total benefit. Results: All the substances investigated in this study were classified by CMR(Carcinogens, Mutagens or Reproductive toxicants) and their international occupational exposure limits were stricter than the domestic permissible exposure limits. As a result of excess rate analysis, trichloroethylene was the highest at 11%, whereas nickel was the lowest at 0.5%. The excess rates of all substances except for trichloroethylene were observed at less than 10%. Among the seven substances, the total cost was highest for trichloroethylene and lowest for carbon disulfide. The benefits for the seven substances were higher than costs estimated based on strengthening current permissible exposure limits. Thus, revising the permissible exposure limits of the seven substances was determined to be acceptable from a social perspective. Conclusions: The final revised permissible exposure limits suggested for the seven substances are as follows: 0.2 ㎎/㎥ for nickel, 0.5 ppm(TWA) and 2.5 ppm(STEL) for benzene, 1 ppm(TWA) for carbon disulfide, 0.01 ㎎/㎥(TWA) for cadmium, 10 ppm(TWA) and 25 ppm(STEL) for trichloroethylene, 0.3 ppm(TWA) for formaldehyde, and 0.005 ppm(TWA) and 0.02 ppm(STEL) for toluene diisocynate(isomers).

      • KCI등재

        Finite element analysis of the impact of liner thickness and hydrodynamic limit on the penetration depth of a shaped charge warhead

        강영구,전진철 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.12

        In this work, an identification method for the hydrodynamic limit of shaped charge jets (SCJs) is proposed using numerical analysis. To identify the hydrodynamic limit, we consider situations where two targets of the same density but different strengths are penetrated by the same SCJ. As a result, the SCJ corresponding with the hydrodynamic theory is a jet region with a velocity larger than 4 km/s. In addition, an investigation based on the hydrodynamic limit and liner thickness indicates that the penetration capability before and after the hydrodynamic limit improves as apex thickness decreases and base thickness increases, respectively. The simple and clear identification of the hydrodynamic limit is expected to be possible using the proposed method. Accordingly, a selective and organized liner thickness design can be developed. In this work, an identification method for the hydrodynamic limit of shaped charge jets (SCJs) is proposed using numerical analysis. To identify the hydrodynamic limit, we consider situations where two targets of the same density but differen t strengths are penetrated by the same SCJ. As a result, the SCJ corresponding with the hydrodynamic theory is a jet region with a velocity larger than 4 km/s. In addition, an investigation based on the hydrodynamic limit and liner thickness indicates that the penetration capability before and after the hydrodynamic limit improves as apex thickness decreases and base thickness increases, respectively. The simple and clear identification of the hydrodynamic limit is expected to be possible using the proposed method. Accordingly, a selective and organized liner thickness design can be developed.

      • KCI등재

        질적비교분석(QCA)방법에 의한 제한된 다양성(limited diversity) 문제로의 접근 -"자전거이용활성화에 관한 조례" 채택 사례를 중심으로-

        이은미 ( Eunmi Lee ),이은국 ( Eunkook Lee ),고기동 ( Kidong Ko ) 한국정책학회 2014 韓國政策學會報 Vol.23 No.4

        정책현상은 제한적으로 나타나며 사례수에 있어서도 제약이 있다. 자연과학에서의 반복적인 실험과 달리 정책현상은 역사적, 제도적, 상황적 맥락 등에서 한정적으로 나타나게된다. 특정 현상이 논리적?이론적으로 가능하더라도 실증 사례가 없는 경우, 이를 어떻게 연구하고 설명할 것인가가 제한된 다양성(limited diversity)에 대한 논의이다. 제한된 다양성에 대해 질적비교분석방법(Qualitative Comparative Analysis: QCA)은 이론에 근거한 조건법적 사례(counterfactual cases)를 적용하여 정책현실의 복잡성을 단순화하는 방법을 제시하고 있다. 본 논문에서는 질적비교분석방법이 제한된 다양성을 어떻게 해결할 수 있는 지를 ‘자전거이용활성화에 관한 조례’ 채택의 사례에 적용하여 설명하고자 한다. 2003년부터 2012년까지 자전거이용활성화 조례를 제정한 130개 지방자치단체를 대상으로 조례 채택에 영향을 준 정치적?경제적?외부적 요인을 QCA 방법으로 분석하고, 제한된 다양성 결합조건이 실증결과에 어떻게 영향을 주게 되는 지를 살펴본다. 최근 질적비교분석방법을 활용한국내연구가 증가하고 있지만, 선행 연구들은 유형별 이상형 분석과 결합조건 등에 중점을 두고 있다. 본 논문은 기존 연구들과는 달리 연구방법론에 중심을 두고 사례를 분석한 것으로, 제한된 다양성 논의가 정책현상을 새로운 시각으로 바라보는 데에 기여할 수 있기를 기대해 본다. This study analyzes how QCA(Qualitative Comparative Analysis) figures out limited diversity. Using fuzzy set analysis, the case of 'Ordinance for Revitalization of Bicycle Usage' adoption is applied to examine limited diversity phenomena in policy area. For the analysis, pooled time series data are generated by updating and combining the existent data sets between 2003 and 2012. Based on the data set, we investigate the policy adoption determinants to compare complex causal conditions in 130 Korean local government. Then, it is analyzed how the configurational condition of limited diversity have a effect on the empirical results. As this study conducts the case analysis focused on the research methodology, it is expected to contribute to extend limited diversity discussion in complex policy arena.

      • KCI등재

        도로구조물의 발파진동 허용기준에 관한 연구

        손무락,홍두표,권오철,정연권,황영철,박두희 한국지반공학회 2014 한국지반공학회논문집 Vol.30 No.12

        This paper is to provide the allowable limit blasting-induced vibration for road structures and facilities. For this purpose,first of all, this study examined various allowable limits of different structures from domestic and foreign countries,investigated related problems of the limits used in the country, and suggested the measures to minimize the relatedproblems. Furthermore, this study proposed the blasting-induced vibration limit of road structures and facilities that couldbe used in the country from comparing and analyzing the various limits from foreign countries. To verify the proposedlimit for a practical use in the field, field cases that had both a vibration magnitude and a damage level were collectedand they were compared with the proposed limit. In addition, the proposed limit was also compared with the resultsof analytical and numerical analyses. The comparison and analysis indicated that the proposed limit of different roadstructures and facilities is valid for the practical use in the field. From this study, the proposed limit is expected tobe used as the limit to estimate the damage levels of road structures and facilities due to blasting-induced vibrationsin the field.

      • KCI등재

        해석 방법에 따른 비탈면 최소안전율 비교 연구

        류항택(Hang Taek Ryu),장정욱(Jeong Wook Jang),정연인(Youn In Chung) 한국해안해양공학회 2018 한국해안해양공학회 논문집 Vol.30 No.5

        본 연구에서는 한계평형해석에 근거하는 Talren97과 SoilWorks 그리고 유한요소해석에 근거하는 Midas GTS를 이용하여 비탈면의 최소안전율을 비교 · 분석하였다. 해석 변수로는 비탈면 높이, 소단조건, 지반정수, 지하수위, 비탈면 경사이며 지하수위를 제외한 모든 변수들에 대한 해석은 건기와 우기로 나누어 수행하였다. 그 결과 동일한 이론을 기반으로 하는 Talren97과 SoilWorks에 의한 비탈면 최소안전율은 동일한 값을 나타내어 프로그램간의 차이는 없는 것으로 확인되었다. 한계평형해석에 비하여 유한요소해석 결과가 다소 높은 안전율을 나타내었으며 평균적으로 약 2.4% 높게 나타나는 것으로 확인되었다. 그러나 한계평형해석과 유한요소해석의 결과 값 차이는 실무에서는 무시할 수 있는 범위이므로 프로그램 및 해석방법에 따른 비탈면 안전율의 차이는 없는 것으로 판단되었다. This research compared and analyzed safety ratio of slope with Talren97 and SoilWorks based on limit equilibrium analysis and Midas GTS based on finite element analysis. For the analysis variables, there are slope height, berm condition, soil parameter, groundwater level, slope inclination. All of slope stability analysis were performed by dividing into dry season and rainy season. As the result of the analysis of Talren97 and SoilWorks based on same theory, safety ratio of slope shows same value, so there was no difference between the programs. In comparison with limit equilibrium analysis, the result of finite element analysis showed somewhat high ratio of safety and it was higher by about 2.4% averagely. The difference between the result of limit equilibrium analysis and that of finite element analysis is in the range which can ignored in practical work.

      • SCIESCOPUS

        An application of large displacement limit analysis to frame structures

        Challamel, Noel Techno-Press 2009 Structural Engineering and Mechanics, An Int'l Jou Vol.33 No.2

        The aim of this paper is to give a rigorous framework for the interpretation of limit analysis results including large displacements. The presentation is oriented towards unidimensional media (beams) but two-dimensional (plates) or three-dimensional media are also concerned. A single-degree-of-freedom system is first considered: it shows the basic phenomena of large displacement limit analysis or second-order limit analysis. The results are compared to those of a continuous system and the differences between both systems are discussed. Theoretical results are obtained using the kinematical approach of limit analysis. An admissible load-displacement plane is then defined, according to the yield design theory. The methodology used is applied to frame structures. The presented results are nevertheless different from those already published in the literature, as the virtual displacement field can be distinguished from the displacement field at collapse. The simplicity of large displacement limit analysis makes it attractive for practical engineering applications. The load-displacement upper bound can be used for instance in the optimal design of steel frames in seismic areas.

      • KCI등재

        An application of large displacement limit analysis to frame structures

        Noel Challamel 국제구조공학회 2009 Structural Engineering and Mechanics, An Int'l Jou Vol.33 No.2

        The aim of this paper is to give a rigorous framework for the interpretation of limit analysis results including large displacements. The presentation is oriented towards unidimensional media (beams) but two-dimensional (plates) or three-dimensional media are also concerned. A single-degree-of-freedom system is first considered: it shows the basic phenomena of large displacement limit analysis or secondorder limit analysis. The results are compared to those of a continuous system and the differences between both systems are discussed. Theoretical results are obtained using the kinematical approach of limit analysis. An admissible load-displacement plane is then defined, according to the yield design theory. The methodology used is applied to frame structures. The presented results are nevertheless different from those already published in the literature, as the virtual displacement field can be distinguished from the displacement field at collapse. The simplicity of large displacement limit analysis makes it attractive for practical engineering applications. The load-displacement upper bound can be used for instance in the optimal design of steel frames in seismic areas.

      • KCI등재

        Thought Analysis: Working Mechanism and Overcoming of Limitations

        Tianqun Pan 강원대학교 인문과학연구소 2020 Journal of Humanities Therapy Vol.11 No.2

        Every mode of philosophical practice is based on some philosophical theory. Thought analysis, which is based on analytic philosophy, is the philosophical practice of clarifying an individual’s thoughts and beliefs through Socratic dialogue. Logic is an important tool employed by thought analysts, and during making clients to think clearly thought analysts should follow the principles of value neutrality and ethic neutrality. With the advent of hyperconnected societies, people are increasingly encountering spiritual and psychological problems. Thought analysis can be employed to solve spiritual problems, which include not only an individual’s suffering but also disputes or conflicts caused by differing beliefs among people. Thought analysis, however, has its limitations. We must surpass these limitations to enhance the power and efficacy of thought analysis.

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