• 농촌지도와개발
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• 제30권1호
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• pp.15-29
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• 2023

Recently, there has been increasing interest in renewable energy in the agricultural sector. Agrophotovoltaics, producing electricity while farming, has attracted much attention. This study aims to identify the factors influencing the acceptance intention of Agrophotovoltaics. Using the UTAUT2 model, we designed a research model to examine the impact of performance expectancy, effort expectancy, facilitating conditions, social influence, and investment utility on the intention to adopt Agrophotovoltaics through the mediation effect of the user's innovativeness. We conducted a survey on farmers and obtained 212 responses for the final analysis. The results showed that effort expectancy and innovativeness significantly positively affected the intention to adopt Agrophotovoltaics. Furthermore, innovativeness was found to fully mediate the relationship among performance expectancy, facilitating conditions, investment utility, and acceptance intention. This suggests that focusing supportive measures on innovative groups could promote the adoption of Agrophotovoltaics.

• Advances in nano research
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• 제13권4호
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• pp.351-368
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• 2022

Recently, promising structural technologies like multi-function, ultra-load bearing capacity and tailored structures have been put up for discussions. Finite Element (FE) modelling is probably the best-known option capable of treating these superior properties and multi-domain behavior structures. However, advanced materials such as Functionally Graded Material (FGM) and nanocomposites suffer from problems resulting from variable material properties, reinforcement aggregation and mesh generation. Motivated by these factors, this research proposes a unified shape function for FGM, nanocomposites, graded nanocomposites, in addition to traditional isotropic and orthotropic structural materials. It depends not only on element length but also on the beam's material properties and geometric characteristics. The systematic mathematical theory and FE formulations are based on the Timoshenko beam theory for beam structure. Furthermore, the introduced element achieves C1 degree of continuity. The model is proved to be convergent and free-off shear locking. Moreover, numerical results for static and free vibration analysis support the model accuracy and capabilities by validation with different references. The proposed technique overcomes the issue of continuous properties modelling of these promising materials without discarding older ones. Therefore, introduced benchmark improvements on the FE old concept could be extended to help the development of new software features to confront the rapid progress of structural materials.

• Asia pacific journal of information systems
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• 제30권4호
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• pp.847-878
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• 2020

In the era of disruptive change, a data-driven approach is vital to Human Resource Management (HRM) of any leading organization, for it is used to gain a competitive advantage. HR analytics (HRA) has emerged as innovative technologies since advanced analytics, i.e., predictive or prescriptive analytics, were widely used in the High Performing Organizations (HPOs). Therefore, many organizations elevate themselves to become HPOs through Data Science on the "people side." This paper proposes a systematic literature review using the Literature Weighted Scoring (LWS) to develop a conceptual framework based on three adoption theories, which are the Technology-Organization-Environment (TOE), Diffusion of Innovation (DOI), and Unified Theory of Acceptance and Use of Technology (UTAUT). The results show that a total of 13 theory-derived factors are determined as influential factors affecting HRA adoption, and the top three factors are "Quantitative Self-Efficacy," "Top Management Support," and "Data Availability." The conceptual framework with hypotheses is proposed to provide a foundation for further studies on organizational HRA adoption.

• 동양고전연구
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• 제57호
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• pp.301-330
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• 2014

문헌기록에 숙신이란 명칭이 처음 확인되는 것은 "사기(史記)"와 "춘추좌씨전(春秋左氏傳)"이다. 그러나 숙신이 어떤 계통의 종족이고, 언제 처음 나타났으며, 주 활동지역이 어디이고, 어떻게 생활하였는지에 대해서는 구체적인 기록은 남아있지 않아 그 실체를 확인하는데 어려움이 있다. 그동안 숙신의 활동지역에 대해서는 다양한 견해가 제기되었으나, 중국의 경우 흑룡강성 동부지역을 숙신의 활동지역으로 보는 "숙신동북설"이 학계의 정설로 받아들여지고 있다. 최근 국내에서 "숙신동북설"에 대한 비판적 연구가 이루어졌으나, 문헌비판에만 그치고 있어 일정한 한계를 지니고 있다. 본고는 이러한 문헌사적 연구성과를 토대로 중국측이 주장하는 숙신 활동 지역의 고고학적 자료를 분석해 봄으로써 "숙신동북설"의 문제점과 허구성을 밝혀보고자 한다. 흑룡강성 동부지역의 선사시대 유적으로는 신개류유적, 소남산유적, 앵가령유적, 석회장유적, 진흥유적, 아포력유적 등이 있다. 이들 유적에서 생활한 선사인들은 어렵과 수렵 중심의 경제생활을 영위하고 있다. 다만 목단강유역의 경우 어렵과 수렵 이외에도 일부 원시 농업이 행해지고 있다. 사회구조는 남성 위주의 가부장적 씨족부락 단계에 해당되며, 복합사회 단계에는 도달하지 못하고 있다. 문헌에 중국 왕조와 숙신과의 교류 관계 기사는 요순시기와 주 무왕 시기 두 차례 보인다. 두 시기로 나누어 중원과 흑룡강지역 유적에 보이는 문화양상을 비교 분석한 결과, 양자간의 문화적 교류 가능성은 확인되지 않는다. 이는 선사시대 흑룡강성 동부지역은 중원과 교류할 수 있을 정도의 복합사회 단계로 발전하지 못하고, 가부장적인 씨족부락단계에 머무르고 있었기 때문으로 파악된다. 결과적으로 중국에서 주장하는 "숙신동북설"은 진수의 "삼국지" 저술 과정에서 발생한 오류와 현재적 시점에서 중화민족통일론에 입각해 만들어진 허구적 학설에 불과하다.

• 동국한의학연구소논문집
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• 제7권1호
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• pp.1-32
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• 1998

청말 중서의회통파인 장석순의 의학사상을 "의학충중참서록"를 중심으로 정리하였다. 고전을 철처히 이해하여 동양의학의 이론을 바탕으로 서양의학을 접목시켜 장점을 취하고 단점을 보완하려고 노력하였다. 그의 의학적인 이론으로는 대기론, 기화론, 간병론, 화어법 등이 있고, 상한론과 온병학의 통합을 주장하고 내과병증에 다양한 방법을 제시하였다.

• 대한기계학회논문집A
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• 제28권6호
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• pp.670-676
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• 2004

Most metallic materials and alloys show rate independence or negative rate sensitivity in some temperature region when dynamic strain aging occurs. It is generally recognized that negative rate sensitivity is an essential feature of dynamic strain aging that can depend on strain and/or strain rate. The unified viscoplasticity theory based on overstress is applied to reproduce a change of rate sensitivity type that depends on strain or strain rate. This is accomplished through the introduction of a single new term in the growth law of the equilibrium stress, which is a tensor valued state variable of the model. It is also shown that the new term can be used to reproduce a dramatic increase of rate sensitivity in dynamic plasticity.

• Bulletin of the Korean Chemical Society
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• 제24권6호
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• pp.843-852
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• 2003

We present a brief account of the theory of diffusion-influenced kinetics of reactions involving polymers. The review will be based on the recent contributions from the authors. Both intrapolymer and interpolymer reactions are considered, and the effects of various physical factors, such as the chain length, chain stiffness, and hydrodynamic interactions, are described within a unified theoretical framework.

• 전자공학회논문지B
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• 제31B권1호
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• pp.1-10
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• 1994

Among the various methods of realizing low sensitivity digital filters. LBR two-pair cascading is one which enables us to realize low sensitivity filter without referring to any analog prototype filters. In this paper we analyze the LBR cascade structures through the fundamental approach to them based on the WDF theory, and interpret their features described solely in the digital domain in relation to the corresponding analog circuit Besides, we derive in a unified manner various LBR constraints needed for the LBR cascade realization, point out the insufficiency lurking in the existing description of the Type 3 LBR constraints, complement it, and make the LBR two-pair cascading procedure complete.

• 소성∙가공
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• 제19권8호
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• pp.468-473
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• 2010

Shape memory alloys (SMAs) have the ability to recover their original shape upon thermo-mechanical loading even after large inelastic deformation. The unique feature is known as pseudoelasticity and shape memory effect caused by the crystalline structural transformation between two solid-state phases called austenite and martensite. To support the engineering application, a number of constitutive models, which can be formally classified into either micromechanics-based or phenomenological model, have been developed. Most of the constitutive models include a kinetic law governing the crystallographic transformation. The present work presents a one-dimensional, phenomenological constitutive model for SMAs in the context of the unified viscoplasticity theory. The proposed model does not incorporate the complex mechanisms of phase transformation. Instead, the effects induced by the transformation are depicted through the growth law for the back stress that is an internal state variable of the model.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2002년도 봄 학술발표회 논문집
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• pp.259-264
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• 2002

This paper describes an attempt to develop a unified design approach for reinforced concrete short beam failing in shear based on a Arch Factor. Designing for short beam in shear is not as straightforward as designing for flexure due to the complicated interdependency of the variables involved and to the nonexistence of a rational theory tn current design code. Shear failure of reinforced concrete beams with stirrups is influenced greatly because of the actual geometrical shape(a/d) of the concrete and flexural reinforcement steel ratio, stirrup reinforcement ratio and concrete compression strength, size effect etc. The objective of this paper is to present a pilot study to develop a simplified physical model for estimating shear behavior of reinforced concrete short beams. The Key idea incorporated with this model is the Arch factor, introduced by Kim and White.