• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권8호
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• pp.2751-2771
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• 2022

In the post covid-19 era, organizations will experience a new environment. Advances in technologies such as AI and big data, and new experiences such as online meetings and lectures, will increase the use of online communication. Businesses will increasingly engage in online-based information sharing, virtual team operations, and online meetings. This study focuses on meeting climate and satisfaction, to improve the performance of online meetings. Existing studies on meeting climate presuppose off-line situations. Offline and online communication methods and meeting formats are different. This paper proposes new climate types to develop an appropriate climate for online-based meetings. To apply these climates in online meetings, a measurement scale was developed and the impact on online meeting satisfaction was verified. As a result of the study, it was found that the creativity-oriented meeting climate was the most important, and relation-oriented and participation-oriented meeting climates also had a significant effect, while the direction-oriented and task-oriented climates were relatively less important. This study develops new variables and measurements for online meeting climates, and explains their importance. Companies will be able to leverage the appropriate climates for online meetings to improve performance.

• 한국산학기술학회논문지
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• 제15권1호
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• pp.256-263
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• 2014

본 연구의 목적은 교수자의 교수 스타일과 교육경험이 수업분석에 미치는 영향을 확인해 보는데 있다. 이를 통해 해당 요인들이 수업을 바라보는 관점에 차이가 있는지 확인할 수 있으며, 교육현장에서 교사들이 수업비평과 수업분석을 바라보는 분석관점의 차이를 확인할 수 있다. 연구대상은 초등학교에 근무하는 교사 198명을 대상으로, 교수 스타일을 분류하였다. 자료처리는 교육경험에 해당하는 교직경력을 확인하여 공변인으로 두고, 각각 교수 스타일에 따라 수업 분위기를 분석하는 관점의 차이를 확인하였다. 연구결과 수업분위기 분석의 요인인 창의성, 활기성, 치밀성, 온화성의 4가지 항목에서 유의한 차이를 나타냈다. 수업분위기 분석에서 교수 스타일 중 전문성은 동일한 수업에서 창의성에 높은 점수를 부여했으며, 촉진자 스타일은 활기성에 가장 높은 점수를, 역할모델은 치밀성에 가장 높은 점수를, 촉진자와 역할모델은 온화성에 가장 높은 점수를 부여했다. 반면 권위적인 스타일과 위임자 스타일은 전체적인 수업분위기에서 가장 낮은 점수를 부여하는 것으로 나타났다. 이는 교수 스타일에 따라 수업을 분석하는 관점이 다르며, 전문가, 역할모델, 촉진자 스타일이 수업분석에 있어 반성적인 성찰과 허용적인 인식을 통해 분석하려는 의도가 비교적 강한 것으로 볼 수 있다.

• Journal of Ecology and Environment
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• 제43권2호
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• pp.246-253
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• 2019

Background: Water use efficiency (WUE) is an indicator of the trade-off between carbon uptake and water loss to the atmosphere at the plant or ecosystem level. Understanding temporal dynamics and the response of WUE to climatic variability is an essential part of land degradation assessments in water-limited dryland regions. Alternative definitions of and/or alternative methodologies used to measure WUE, however, have hampered intercomparisons among previous studies of different biomes and regions. The present study aims to clarify semantic differences among WUE parameters applied in previous studies and summarize these parameters in terms of their definition and methodology. Additionally, the consistency of the responses of alternative WUE parameters to interannual changes in moisture levels in Northeast Asia dryland regions (NADRs) was tested. Results: The literature review identified more than five different WUE parameters defined at leaf and ecosystem levels and indicates that major conclusions regarding the WUE response to climatic variability were partly inconsistent depending on the parameters used. Our demonstration of WUE in NADR again confirmed regional inconsistencies and further showed that inconsistencies were more distinct in hyper- and semi-arid climates than in arid climates, which might reflect the different relative roles of physical and biological processes in the coupled carbon-water process. Conclusions: The responses of alternative WUE parameters to drying and wetting may be different in different regions, and regionally different response seems to be related to aridity, which determines vegetation coverage.

• Wind and Structures
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• 제19권3호
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• pp.295-320
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• 2014

Starting from an overview on the research on thunderstorms in the last forty years, this paper provides a general discussion on some emerging issues and new frameworks for wind loading on structures in mixed climates. Omitting for sake of simplicity tropical cyclones and tornadoes, three main aspects are pointed out. The first concerns the separation and classification of different intense wind events into extra-tropical depressions, thunderstorms and gust fronts, with the aim of improving the interpretation of the phenomena of engineering interest, the probabilistic analysis of the maximum wind velocity, the determination of the wind-induced response and the safety format for structures. The second deals with the use of the response spectrum technique, not only as a potentially efficient tool for calculating the structural response to thunderstorms, but also as a mean for revisiting the whole wind-excited response in a more general and comprehensive framework. The third involves the statistical analysis of extreme wind velocities in mixed climates, pointing out some shortcomings of the approaches currently used for evaluating wind loading on structures and depicting a new scenario for a more rational scheme aiming to pursue structural safety. The paper is set in the spirit of mostly simplified analyses and mainly qualitative remarks, in order to capture the conceptual aspects of the problems dealt with and put on the table ideas open to discussion and further developments.

• Architectural research
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• 제7권2호
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• pp.13-21
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• 2005

Throughout history, buildings have been interrelated with certain indigenous characteristics such as regional climate, culture and religions. In particular, the control of regional climate has been primarily a concern for compatibility with nature. In our modern age, technologies to control climate have been successfully developed in architecture but the consumption of large quantities of natural resources can also produce environmental problems. This study is based on the proposition that this negative trend can be minimized with architectural design that is motivated to coexist with a regional climate. This study develops these design strategies for tall office buildings by analyzing various combinations of building design configurations based on regional climates. The objective is to determine the optimum architecture of tall office buildings during the initial design process that will reduce energy consumption for regional climatic conditions. The eQUEST energy simulating program based on DOE-2.2 was used for this comparative analysis study of the energy use in tall office buildings based on architectural design variables and different regional climates. The results are statistically analyzed and presented in functional architectural design decision-making tables and charts. As a result of the comparison of architectural design consideration for tall office buildings in relation to regional climates, buildings physically need less energy consumption when the architecture is concerned with the regional climate and it produces a more reasonable design methodology. In reality, imbalanced planning which is architectural design's lack of regional characteristics requires additional natural resources to maintain desired comfortable indoor conditions. Therefore, the application of integrated architectural design with regional nature should be the first architectural design stage and this research produces the rational. This architectural design language approach must be a starting point to sustaining long-term planning.

• 국제초고층학회논문집
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• 제8권1호
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• pp.19-27
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• 2019

This presentation traces the evolution of the SkyPark across multiple building types in different cities, climates and contexts from urban, architectural and social perspectives.

• 한국지역사회생활과학회지
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• 제21권4호
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• pp.551-558
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• 2010

It is a normal circumstance to have high temperature and high humidity in Greenhouses even though these climates are changed by the area, season, climates, the size of the greenhouse, and the crops being raised. Workers in the greenhouses have complained about their uncomfortable work environment and discomfort from the hot conditions, including sunburn. The farmers' ailments are not significantly different between those working in the in greenhouses and those working in the fields. The Farmers' syndrome was almost two times higher for women than those of men for greenhouse workers. This study was developed for functional fatigue clothes for plastic greenhouses which are known for high temperatures and humidity. The ergonomic function and thermal comforts of fatigue clothes were evaluated in the climatic chamber($30.0^{\circ}C$, 70.0%R.H.). The current fatigue clothes which are made of cotton or nylon were purchased at the market. The developed clothes are made of highly absorbent and high speed drying polyester. And these fabrics have excellent elasticity. In this study, the functional fatigue clothes were designed with longsleeved sport shirts and Full length pants. Tre, Tsk, Hcl, HR and the personal subjective sensations such as heat, humidity, and comfortableness were significantly lower when subjects wore the developed clothes made with polyester than the previous attire.

• 신재생에너지
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• 제17권1호
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• pp.19-32
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• 2021

Photovoltaic (PV) panels are generally treated as the most dependable components of PV systems; therefore, investigations are necessary to understand and emphasize the degradation of PV cells. In almost all specific deprivation models, humidity and temperature are the two major factors that are responsible for PV module degradation. However, even if the degradation mode of a PV module is determined, it is challenging to research them in practice. Long-term response experiments should thus be conducted to investigate the influences of the incidence, rates of change, and different degradation methods of PV modules on energy production; such models can help avoid lengthy experiments to investigate the degradation of PV panels under actual working conditions. From the review, it was found that the degradation rate of PV modules in climates where the annual average ambient temperature remained low was -1.05% to -1.16% per year, and the degree of deterioration of PV modules in climates with high average annual ambient temperatures was -1.35% to -1.46% per year; however, PV manufacturers currently claim degradation rates of up to -0.5% per year.

• 중소기업연구
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• 제39권2호
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• pp.139-160
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• 2017

오늘날 기업을 둘러싸고 있는 환경의 변화는 매우 불확실하여 기업들이 경쟁력을 제고시키고 수익성을 개선하기 위해선 사내 기업가정신이 활성화되어야 할 필요성이 있다. 특히, 한국이나 중국과 같이 신흥시장에 속해 있는 국가들에 있어 중소기업들의 기업가정신 실천은 경제적 혁신과 기업의 경쟁력 제고를 위해 매우 중요한 과제로 제시되고 있다. 이에 본 연구는 한국과 중국의 중소기업들을 대상으로 Hornsby et al.(2002)이 제시한 사내 기업가정신의 활성화를 위한 5가지 환경적 요인들이 기업가정신 활동에 미치는 영향에 대해 살펴보았다. 설문조사를 통해 한국과 중국의 중소기업 300개 업체로부터 받은 자료를 분석한 결과, 기존의 서구의 대기업들을 대상으로 연구되어졌던 조직환경이 한국과 중국과 같은 신흥시장에 속해 있는 국가의 중소기업들에서도 동일하게 사내 기업가정신에 유의한 긍정적 영향을 미치는 것으로 나타났다. 다만, 사내 기업가정신의 실천은 혁신이나 전략 재구축과 같은 다양한 형태로 나타날 수 있는데 그 형태에 따라 각기 조직환경이 미치는 영향력에 있어서도 다소 차이가 있는 것으로 나타났다. 또한 비교적 동일한 문화권에 속해 있는 한국과 중국의 중소기업들은 조직환경에 있어 통계적으로 유의한 차이를 대체로 보이지 않는 것으로 나타났다. 뿐만 아니라 이들 요인들이 미치는 영향력에 있어서도 많은 경우 통계적으로 유의한 차이를 보이지 않는 것으로 나타났다. 그러나 한국의 중소기업들이 중국에 비해 유연한 조직구조나 직무자율성은 사내 기업가정신을 실천하는데 있어 보다 강점이 있는 것으로 나타났다. 본 연구의 이러한 결과는 향후 국내 중소기업들이 경쟁력 제고와 혁신을 위해서 그리고 중국 중소기업들에 비해 비교우위를 갖기 위해서 어떠한 노력들을 더 경주해야 하는지에 대한 시사점을 제공한다.

• International Journal of Industrial Entomology and Biomaterials
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• 제9권1호
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• pp.15-28
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• 2004

The supplementation of mulberry leaves, with the aim of yield, enhancement using vitamins, minerals and other compounds have generally been attended from 1990s and many researches have been conducted. More than 30 different compounds from complementary nutrients have been analyzed and in different regions where different climates various results have been achieved. This review has attempted to discuss the results of different works on enrichment of mulberry leaves with supplementary compound. Generally the most effects of these compounds are in the regions where productive parameters are low. In the areas that follow a normal pattern in economical parameters the enrichment of the leaves havent have significant economical effects.