• Asia pacific journal of information systems
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• 제21권4호
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• pp.63-104
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• 2011

The study examines the relationships among employee's goal orientation, IT personnel competency, personal effectiveness. The goal orientation includes learning goal orientation, performance approach goal orientation, and performance avoid goal orientation. Personal effectiveness consists of personal work satisfaction and personal work performance. In general, IT personnel competency refers to IT expert's skills, expertise, and knowledge required to perform IT activities in organizations. However, due to the advent of the internet and the generalization of IT, IT personnel competency turns out to be an important competency of technological experts as well as employees in organizations. While the competency of IT itself is important, the appropriate harmony between IT personnel's business capability and technological capability enhances the value of human resources and thus provides organizations with sustainable competitive advantages. The rapid pace of organization change places increased pressure on employees to continually update their skills and adapt their behavior to new organizational realities. This challenge raises a number of important questions concerning organizational behavior? Why do some employees display remarkable flexibility in their behavioral responses to changes in the organization, whereas others firmly resist change or experience great stress when faced with the need to alter behavior? Why do some employees continually strive to improve themselves over their life span, whereas others are content to forge through life using the same basic knowledge and skills? Why do some employees throw themselves enthusiastically into challenging tasks, whereas others avoid challenging tasks? The goal orientation proposed by organizational psychology provides at least a partial answer to these questions. Goal orientations refer to stable personally characteristics fostered by "self-theories" about the nature and development of attributes (such as intelligence, personality, abilities, and skills) people have. Self-theories are one's beliefs and goal orientations are achievement motivation revealed in seeking goals in accordance with one's beliefs. The goal orientations include learning goal orientation, performance approach goal orientation, and performance avoid goal orientation. Specifically, a learning goal orientation refers to a preference to develop the self by acquiring new skills, mastering new situations, and improving one's competence. A performance approach goal orientation refers to a preference to demonstrate and validate the adequacy of one's competence by seeking favorable judgments and avoiding negative judgments. A performance avoid goal orientation refers to a preference to avoid the disproving of one's competence and to avoid negative judgements about it, while focusing on performance. And the study also examines the moderating role of work career of employees to investigate the difference in the relationship between IT personnel competency and personal effectiveness. The study analyzes the collected data using PASW 18.0 and and PLS(Partial Least Square). The study also uses PLS bootstrapping algorithm (sample size: 500) to test research hypotheses. The result shows that the influences of both a learning goal orientation (${\beta}$ = 0.301, t = 3.822, P < 0.000) and a performance approach goal orientation (${\beta}$ = 0.224, t = 2.710, P < 0.01) on IT personnel competency are positively significant, while the influence of a performance avoid goal orientation(${\beta}$ = -0.142, t = 2.398, p < 0.05) on IT personnel competency is negatively significant. The result indicates that employees differ in their psychological and behavioral responses according to the goal orientation of employees. The result also shows that the impact of a IT personnel competency on both personal work satisfaction(${\beta}$ = 0.395, t = 4.897, P < 0.000) and personal work performance(${\beta}$ = 0.575, t = 12.800, P < 0.000) is positively significant. And the impact of personal work satisfaction(${\beta}$ = 0.148, t = 2.432, p < 0.05) on personal work performance is positively significant. Finally, the impacts of control variables (gender, age, type of industry, position, work career) on the relationships between IT personnel competency and personal effectiveness(personal work satisfaction work performance) are partly significant. In addition, the study uses PLS algorithm to find out a GoF(global criterion of goodness of fit) of the exploratory research model which includes a mediating variable, IT personnel competency. The result of analysis shows that the value of GoF is 0.45 above GoFlarge(0.36). Therefore, the research model turns out be good. In addition, the study performs a Sobel Test to find out the statistical significance of the mediating variable, IT personnel competency, which is already turned out to have the mediating effect in the research model using PLS. The result of a Sobel Test shows that the values of Z are all significant statistically (above 1.96 and below -1.96) and indicates that IT personnel competency plays a mediating role in the research model. At the present day, most employees are universally afraid of organizational changes and resistant to them in organizations in which the acceptance and learning of a new information technology or information system is particularly required. The problem is due' to increasing a feeling of uneasiness and uncertainty in improving past practices in accordance with new organizational changes. It is not always possible for employees with positive attitudes to perform their works suitable to organizational goals. Therefore, organizations need to identify what kinds of goal-oriented minds employees have, motivate them to do self-directed learning, and provide them with organizational environment to enhance positive aspects in their works. Thus, the study provides researchers and practitioners with a matter of primary interest in goal orientation and IT personnel competency, of which they have been unaware until very recently. Some academic and practical implications and limitations arisen in the course of the research, and suggestions for future research directions are also discussed.

• International Journal of Industrial Entomology and Biomaterials
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• 제26권2호
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• pp.74-80
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• 2013

Three new Multi ${\times}$ Bi combinations M.Con.4 ${\times}$ (SK6 ${\times}$ SK7), M.Con.4 ${\times}$ NB4D2 and Nistari ${\times}$ (SK6 ${\times}$ SK7) were studied in five seasons i.e. during the period of $18^{th}$ June - $12^{th}$ July, $30^{th}$ August - $23^{rd}$ September, $3^{rd}$ November - $2^{nd}$ December, $29^{th}$ January- $2^{nd}$ March and $30^{th}$ March-$25^{th}$ April with one control Nistari ${\times}$ NB4D2 considering nine reeling characteristics along with shell percent and cocoon yield per 100 disease free layings (DFLs) to establish the seasonal effect on all the parameters. Results reveal that all the characters performed well in November-December. Highest yield per 100 DFLs was recorded during November-December in all combinations showing >60 kg yield. Higher correlation of yield/100 DFLs with filament length, non-breakable filament length, denier, raw silk percent, reelability percent and recovery percent was recorded in all combinations of Multi ${\times}$ Bi considered in this study. Variability observed among four combinations indicates the effect of different temperature and humidity of different seasons on expression of different traits. The results indicate that there is significant relationship of raw silk percent with reelability percent, recovery percent and evenness. Reelability percent showed higher correlation with recovery percent. It was observed that neatness was positively correlated with evenness. The overall performance of the newly evolved combinations with regard to productivity and reeling characteristics is discussed emphasizing their utilization at commercial level.

• Geomechanics and Engineering
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• 제22권3호
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• pp.197-206
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• 2020

Reutilization of solid waste such as Tire Derived Aggregate (TDA) and mixing it with soft soil for backfill material not only reduces the required volume of backfill soil (i.e., sand-mining procedures; reinforcement), but also preserves the environment from pollution by recycling. TDA is a widely-used material that has a good track record for improving sustainable construction. This paper attempted to investigate the performance of Kaolin-TDA mixtures as a backfill material underneath a strip footing and close to a retaining wall. For this purpose, different types of TDA i.e., powdery, shredded, small-size granular (1-4 mm) and large-size granular (5-8 mm), were mixed with Kaolin at 0, 20, 40, and 60% by weight. Static surcharge load with the rate of 10 kPa per min was applied on the strip footing until the failure of footing happened. The behaviour of samples K80-G (1-4 mm) 20 and K80-G (5-8 mm) 20 were identical to that of pure Kaolin, except that the maximum footing stress had grown by roughly three times (300-310 kPa). Therefore, it can be concluded that the total flexibility of the backfill and shear strength of the strip footing have been increased by adding the TDA. The results indicate that, a significant increase in the failure vertical stress of the footing is observed at the optimum mixture content. In addition, the TDA increases the elasticity behaviour of the backfill.

• Computers and Concrete
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• 제21권3호
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• pp.249-259
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• 2018

The use of recycled aggregate in concrete is gaining much attention due to the growing need for sustainability in construction. In the present study, Self Compacting Concrete (SCC) is made using both natural and recycled aggregate (crushed recycled concrete aggregate from building demolished waste) and performance of recycled aggregate based SCC for the bond behaviour of reinforcement is evaluated. The major factors that influence the bond like concrete compressive strength (Mix-A, B and C), diameter of bar ($D_b=10$, 12 and 16 mm) and embedment length of bar ($L_d=2.5Db$, $5D_b$ and full depth of specimen) are the parameters considered in the present study in addition to type of aggregates (natural and recycled aggregates). The mix proportions of Natural Aggregate SCC (NASCC) are arrived based on the specifications of IS 10262. The mix proportions also satisfy the guidelines of EFNARC. In case of Recycled Aggregate SCC (RASCC), both the natural coarse and fine aggregates are replaced 100% by volume with that of recycled aggregates. These mixes are also evaluated for fresh properties as per EFNARC. The hardened properties like compressive strength, split tensile strength and flexural strength are also determined. The pull-out test is conducted as per the specifications of IS 2770 (Part-1) for determining the bond strength of reinforcement. Bond stress versus slip curves were plotted and a typical comparison of RASCC is made with NASCC. The fracture energy i.e., area under the bond stress slip curve is determined. With the use of recycled aggregates, reduction in maximum bond stress is noticed whereas, the normalised maximum bond stress is higher in case of recycled aggregates. Based on the experimental results, regression analysis is conducted and an equation is proposed to predict the maximum bond stress of RASCC. The equation is in good agreement with the experimental results. The available models in the literature are made use to predict the maximum bond stress and compare the present results.

• 보건의료산업학회지
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• 제11권2호
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• pp.29-42
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• 2017

Objectives : This study aimed to identify the impact of social responsibility(CSR) activities by the hospital on the organizational commitment and value of the hospital by the internal members, to recognize the importance of staff carry out social responsibility activities effectively in the relevant departments, and use planning as a vital element or establishing a long-term hospital management strategy. Methods : Data were collected from 800 the administrative practioners of the hospitals in 200 hospitals nationwide. A structured questionnaire was used to measure the research variables using a 5-point Likert scale. The final sample consisting of 230 was analyzed using SPSS. Results : It was found that economic, legal, and charitable CSR have a statistically significant effect on organizational commitment and value of hospital Conclusions : The results suggest that hospitals should a fulfilling the obligation to abide by the norms and rules to be strictly observed, social services and charitable activities for the community are a strategy to increase the organizational commitment and hospital value in the long run. These activities should be actively pursued in a way that is sustainable and long-term so that they can improve to management performance.

• 한국측량학회지
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• 제35권4호
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• pp.221-230
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• 2017

Demographic change was considered to be the most major driver of land use change although there were several interacting factors involved, especially in the developing countries. This paper presents an approach to predict the future land use change using a hybrid model. A hybrid model consisting of logistic regression model, Markov chain (MC), and cellular automata (CA) was designed to improve the performance of the standard logistic regression model. Experiment was conducted in Giao Thuy district, Nam Dinh Province, Vietnam. Demography and socio-economic variables dealing with urban sprawl were used to create a probability surface of spatio-temporal states of built-up land use for the years 2009, 2019, and 2029. The predicted land use maps for the years 2019 and 2029 show substantial urban development in the area, much of which are located in areas sensitive to source protections. It also showed that aquacultural land changes substantially in areas where are in the vicinity of estuary or near the sea dike. There was considerable variation between the communes; notably, communes with higher household density and higher proportion of people in working age have larger increases in aquacultural areas. The results of the analysis can provide valuable information for local planners and policy makers, assisting their efforts in constructing alternative sustainable urban development schemes and environmental management strategies.

• 한국전자통신학회논문지
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• 제12권5호
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• pp.865-872
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• 2017

최근 사물인터넷시대를 맞이하여 센서와 컨트롤 기술, 모바일 어플리케이션, 네트워크 트래픽, 빅 데이터의 관리와 분석, 클라우드 컴퓨팅의 성장에 따라 새롭게 급성장하고 있는 스마트 홈 분야를 중심으로 하드웨어 장치에 대한 요구가 갈수록 높아지고 있다. 하드웨어 시스템의 지속 가능한 발전을 유지하기 위해서는 시스템의 업데이트를 필요 하고, 또한 하드웨어장치는 데이터 수집할 뿐만 아니라 복잡한 데이터(음성, 이미지 등)의 실시간 처리 시에 절대적으로 필요하기 때문이다. 본 논문에서는 각기 다른 운영체제하에 있는 하드웨어의 동시 제어 및 통신방식을 해결하고자 브리지방식으로 두 가지 운영체제내의 하드웨어 장치를 일체식 구조로 합치면서 제어 및 통신방식이 간단하게 되는 방법을 제시한다. 이를 위하여 제안된 일체형 하드웨어와 클라우드 서버 연결되는 클라우드 제어 시스템에 대한 성능평가 수행결과와 앞으로 사물인터넷 스마트 홈 분야에서 연구되어야 할 주요 방향에 대하여 기술하였다.

• 한국건설관리학회논문집
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• 제4권4호
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• pp.96-105
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• 2003

타 산업, 특히 제조업 분야의 경우 급격한 기술 및 인터넷 환경의 발전으로 인해 시장이 세분화되고 다품종 소량생산의 체제로 변화하였다. 이러한 사회적 변화는 주택 시장에도 변화를 가져와 공급자 중심에서 수요자 중심의 시장으로 변화하고 있으며 주택에 대한 소비자의 요구사항도 날로 다양해지고 있다 한편 주택의 장수명화를 실현하고 지속가능 한 건축 및 환경 구현을 위해 오픈 하우징 시스템에 관한 연구가 활발히 진행되고 있는 시점에서, 오픈 하우징 개념을 도입한 맞춤형 아파트의 도입이 증가하고 있는 추세이다. 그러나 아직 도입 초기 단계이기 때문에 맞춤형 아파트의 운영에 있어 많은 문제점이 드러나고 있다. 따라서 본 연구에서는 맞춤형 아파트 사업이 효율적으로 이루어질 수 있도록 하기 위하여 최근 입주가 완료된 맞춤형 아파트의 실무자들과의 인터뷰 및 운영 사례를 조사하여 문제점을 분석하고 그에 따른 개선방안을 제시하였다.

• 멤브레인
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• 제24권2호
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• pp.88-99
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• 2014

인구의 증가와 산업의 발전으로 물에 대한 수요가 점차 증가하고 있는 상황에서 안전하고 지속가능한 수자원을 확보하기 위한 방법으로 분리막을 이용한 수처리가 널리 사용되고 있다. 수처리장에서 가장 널리 사용되고 있는 분리막 중 하나인 폴리아마이드 분리막은 분리막 공정 전 단계에서 수행되는 염소살균 처리 후에 잔류하는 염소에 의해 화학적/구조적으로 영향을 받고 성능이 변화하는 것으로 알려져 있다. 본 논문에서는 pH에 따라 수중에 용해되는 염소의 종변화 및 염소에 노출시 폴리아마이드 분리막의 표면 성질 변화와 성능변화의 원리를 다루었다.

• 벤처창업연구
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• 제9권6호
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• pp.117-128
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• 2014

본 연구는 국내 유일의 상업용 위성을 생산, 수출하는 기업인 (주)쎄트렉아이의 사례를 살펴보았다. 위성산업의 기술학습과정과 기술능력의 한계를 극복하고 기술능력의 축적에 이르기까지의 경로와 패턴을 연구하였다. 사례기업의 연구결과, 기술혁신과정과 영향요인을 도출할 수 있었다. 첫째, 위성산업의 기술학습은 모방에 의한 기술획득, 소화, 개선의 과정으로 축적되며 기술능력으로 구체화된다. 둘째, 위성산업의 축적된 기술능력은 기술혁신에 영향을 준다. 셋째, 최고경영자팀(TMT)은 기술학습에 영향을 주며, 기술능력 향상에도 영향을 미친다. 넷째, TMT는 기술능력이 기술혁신성과로 나타나도록 영향을 미친다. 마지막으로 중소벤처기업이 이루어낸 기술혁신은 기술능력과 기술학습의 원천이 되는 것으로 나타났다. 본 연구의 시사점은 다음과 같다. 기업의 지속적인 기술혁신을 위해서는 TMT이 역할이 매우 중요하며, 기술적 측면, 생산적 측면에서 긍정적인 영향을 미친다는 것을 확인 하였다. 또한 기술기반의 기업이 지속적이고 안정적인 성장을 위해서는 기술학습을 통한 경쟁력을 확보해야하며, 이는 기술기반의 기업이면 기술혁신의 바탕이 기술학습에서 시작된다는 것을 시사한다.