• Title/Summary/Keyword: 환기전략

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Effects of Pad Cooling Systems in Tunnel-Ventilated Broiler House on Reducing Indoor Temperature and Level of Temperature-Humidity Index during Summer (국내 터널식환기 무창 육계사에서 여름철 쿨링패드 사용에 따른 계사 내부 온도 저감 효과 및 더위지수(THI)에 미치는 영향)

  • Hye Ran Kim;Seol Hwa Park;Jisoo Wi;Seongshin Lee;Sung Dae Lee;Hwan Ku Kang;Chaehwa Ryu
    • Korean Journal of Poultry Science
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    • v.51 no.2
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    • pp.57-63
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    • 2024
  • As global warming worsens, it is feared that higher ambient temperatures and relative humidity might result in a more intense heat stress for livestock animals, especially broilers, which lack sweat glands for thermoregulation and have been selectively bred for rapid growth. Therefore, strategic livestock management is needed to mitigate the adverse effects of heat stress on broilers. In Korea's poultry farming systems, tunnel-ventilated broiler houses and pad cooling systems are commonly installed to lower indoor temperatures during the summer. However, caution is advised with pad cooling systems as they can increase the humidity inside the houses, potentially causing further harm. This study aimed to evaluate the effectiveness of pad cooling systems in tunnel-ventilated broiler house by assessing the reduction in indoor temperature using the Temperature-Humidity Index (THI), which accounts for the impact of relative humidity. Temperature and humidity data were collected during the summer (Jun to Sep) from eight farms with tunnel-ventilated broiler house located in different regions of Korea. The farms were divided into two groups based on the use of pad cooling systems is used, and temperature and humidity data, along with THI values, were analyzed two weeks before the birds were marketed. Meta-analysis results showed that at the hottest time of the day, 14:00, farms with pad cooling systems had significantly lower indoor temperatures compared to the control group, but observed an increase in indoor temperatures by 16:00 (p<0.05). There is no significant difference in relative humidity (p>0.05). The THI values decreased in the treatment group with cooling pads compared to the control group starting from 15:00, suggesting a diminished effect (p<0.05). This study indicates the potential for developing optimal operational guidelines for cooling pads to reduce heat stress in broilers during the summer season.

Information Analysis Framework for Supporting Evidence-based Research and Development Policy: Practical Considerations for Rationality in the Policy Process (증거기반 연구개발 정책 지원을 위한 정보 분석 프레임워크에 대한 연구: 정책과정의 합리성 제고에 관한 실무적 고찰)

  • Lee, Do-Yeon;Kim, Keun-Hwan
    • Informatization Policy
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    • v.28 no.1
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    • pp.77-93
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    • 2021
  • This study is based on a review of how and in which stages evidence can be used, in practice, in the policy process and proposes an information analysis framework capable of inducing continuous interaction among stakeholders and an operation procedure that allows experts to reconcile conflicts through the analyzed information. In particular, it focuses on the strategic planning process carried out in the policy formation stage of the R&D policy process, which promotes the creation of knowledge related to science and technology required to improve national competitiveness and solve social and environmental problems. Conflicts are negotiated and resolved by ensuring rationality in the policy process, following the operation procedure and inducing communication between the stakeholders participating in national R&D strategic planning related to the issue of population aging throughout utilizing the provided useful information. Our results showed that the proposed operating procedures and information analysis framework had a positive effect on the communication-oriented shift. Thus, in order to promote conflict management, an agreed operating procedures and information analysis framework should be established between stakeholders, thereby reducing a conflict of opinions in advance. This article realizes the true meaning of movement of evidence-based policies. In addition, the framework is helping support evidence-based R&D policies by strengthening rational behavior.

A Critical Study on Google Arts & Culture's "Non-Profit" Strategy and its Appropriation of Publicness of Museums (구글 아트 앤 컬처(Google Arts & Culture)의 '비영리' 전략에 대한 비판적 고찰 - 뮤지엄의 공공성을 전용하는 디지털 플랫폼 기업의 비즈니스 모델 -)

  • Park, Sohyun
    • Korean Association of Arts Management
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    • no.59
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    • pp.33-72
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    • 2021
  • I intended to discuss the new phase of the publicness of museums in a digital environment with the Goole Arts & Culture Project. To this end, I critically examined the instrumental approaches and technological optimism in the application of digital technology to museums, and scrutinized the recent museological issues, particularly the revision or curtailment of the museum's publicness amid the spread of neoliberal policy, which have been omitted within those technological approaches. This is because the meaning of Google Art & Culture can be considered more effectively through an extended theoretical reconstruction. Based on these theoretical discussions, I critically reviewed how the "non-profit," an important concept that defines the publicness of museums, was adopted and utilized as an business strategy by Google. As a result, I wanted to reveal that the neoliberalization of museums, the failure of the government's public function, the crisis of museum's publicness, and Google's "non-profit" strategy have been closely related. Armed with advanced digital technology, the GAC project appropriated the publicness of museums as a useful profit-making model. As such, now the concept of publicness of museums is at a point of more controversial and radical transformation than ever before.

A Study of Environment Monitoring System based on Sensor Network (센서 네트워크를 이용한 실내 공기질 관리 및 제어에 관한 연구)

  • Kim, Ki-Tae;Kim, Dong-Il
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.10a
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    • pp.389-392
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    • 2010
  • The problem for the air pollution in the office or the indoor except a specific working area is the continuously issue since the human beings have lived in the dwelling facilities. Measures for that problem are urgently needed. It's possible to solve for the freshair of outside with enough ventilation but that is the awkward situation to be managed by person. It's feasible to supervison and control easily if you use to sensor network under the network. It works out to sense, storage, process, deliver every kind of appliances and environmental information from the stucktags and sensors. And it is possible to utilize to measure and monitor about the place of environmental pollution which is difficult for human to install. It's studied constantly since it be able to compose easily more subminiature, low-power, low-cost than previous one. And also it spotlights an important field of study, graft the green IT and IT of which the environment and IT unite stragically onto the Network. This study compose a IAQM(Indoor Air Quality Management) under the network, suggest the application of supervision and control.

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Boy Preference and Imbalance in Sex Ratio in Korea (한국의 남아선호와 성비의 불균형)

  • Hong, Moon-Sik
    • Korean Journal of Health Education and Promotion
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    • v.12 no.1
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    • pp.151-164
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    • 1995
  • 한국보건사회연구원의 조사결과에 의하면 이상적인 성비는 1960년의 160에서 1991년에는 130으로 크게 낮아졌다. 아직도 한국 부인들의 이상자녀수는 여아보다 남아가 더 많게 나타나고 있다. 남아의 가치에 대해서는 1960년대에는 노후봉양이 가장 으뜸가는 변수였으나, 최근에는 가계계승보다도 그 중요도가 떨어지고 있는 경향을 보이고 있다. 또한 정서적 유대, 즉 아들이 있어야 든든하다는 식의 주장이 보다 강한 이유로 지적되고 있다. 이러한 남아선호사상은 사회적으로 상당한 영향을 미치는 요인이 되고 있다. 즉 성비의 불균형과 장래의 결혼시장의 혼란이 초래된다는 문제가 그것이다. 예를 들면 현재 셋째 및 넷째 아이의 성비가 크게 상승하고 있는 문제이다. 즉, 1992년의 경우 첫째 아이의 출생성비는 여아 100명당 남아 196.5이고, 넷째 아이의 경우는 229.0으로 더욱 높게 나타났다. 그리고 2000년에는 결혼적령의 남녀 성비의 차이는 신부보다 신랑이 19.1%나 많아질 것이며, 이러한 차이는 2010년에 가면 더욱 심화되어 신부감보다 신랑감이 무려 28.6%가 초과될 전망이다. 가뜩이나 농촌 총각들이 장가 들기가 어려운 터에 장가 못갈 총각이 크게 늘어날 수 밖에 없는 사정이 된다면 사회적으로 큰 혼란이 야기될 것임에 틀림없다. 이러한 성비의 불균형이 초래되는 배경은 남아선호사상의 잔존으로 저출산 내에서 태아의 성을 감별함으로써 선택적인 인공유산을 하는데서 비롯되는 것으로 볼 수 있다. 따라서 현재에도 불식되지 않고 있는 남아선호사상에 대한 주의를 다시 한번 환기시켜야 할 것이다. 특히 이 분야의 보다 깊은 연구를 지속적으로 실시하여 대응전략의 제시에 노력해야 할 것이며, 우선 무엇보다도 여성들의 사회적 지위향상 등 여권신장에 관한 정책적 노력과 더불어 교육 홍보를 통한 노력이 강화되어야 할 것이다. 아울러 태아의 성감별 등 바람직하지 못한 의술남용 행위 등을 근절토록 보다 강력한 법적 적용에도 행정력을 집중시켜 나가야 할 것이다.

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A Review on the Geographical Studies of Developing Countries : Focusing on the German Context (개발도상국에 관한 지리학적 연구의 동향과 과제 : 독일어권을 중심으로)

  • Ahn, Young-Jin
    • Journal of the Korean association of regional geographers
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    • v.15 no.5
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    • pp.655-670
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    • 2009
  • This paper reviews geographical researches on developing countries and suggests relevant future topics. The German language region is especially chosen, because it has a lot of outcomes in the field of geographical researches on developing countries. This paper first reviews the history of geographical researches on developing countries, next analyze various trends of development strategies of developing countries and paradigms of development theories, and finally tries to describe research approaches, significant meanings of the research, and essential topics on the research. The aim of this paper is to verify the geography of developing countries as a practical academic field and to remind the importance of the geography of developing countries, which could contribute to social development and succeed the tradition of regional studies as globalization and international cooperation has continuously intensified.

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Possibilities and Limitations of Media Representation as the Historical Communication -Focusing on Korea Films of Gwangju Democratization Movement in 2000s- (역사적 소통 공간으로써 미디어 재현의 가능성과 한계 -2000년대 한국 영화 속 광주 민주화 운동을 중심으로-)

  • Kim, Mi-Sun;Kim, Yu-Rye
    • The Journal of the Korea Contents Association
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    • v.15 no.7
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    • pp.157-169
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    • 2015
  • This study focuses on Korea films of historical communication. Narrative analysis was conducted on the films in 2000s including , and <26 Years> that mainly have dealt with the 'Gwangju Democratization Movement'. As a result of the syntagmatic analysis, these films try to stabilize 'social imbalances' in the aspect of individuals and conceals issues of social structure. In addition, the result of paradigmatic analysis reveals that textual factors of 'active involvement of female characters', 'continuity of history through the survivors' demonstrate its strategies to publicize the historical truth. Consequently these films show its limitations that weakens historical meaning by placing unsolved problems of social structure as well as the love story. But rather than describing it as a history of the past, these films act as a catalyst to bring thins specific historical issue to our present lives and publicize it as a current issue. Therefore, the historical film not only allows current generation to remind to history but also to provide an opportunity to publicize the important issues of social structure in the present society.

The Effects of Perceived Risk and Review Diagnosticity on the Acceptance of Food Delivery Application (지각된 위험 및 리뷰 진단성이 배달앱 수용에 미치는 영향)

  • Roh, Minjung
    • The Journal of the Korea Contents Association
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    • v.19 no.10
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    • pp.581-592
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    • 2019
  • This study investigates the factors that stimulate or suppress the use of food delivery applications. As potential antecedent factors, the present research examined the review diagnosticity, descriptive norms, and multidimensional risk perception. Based on this, users' data were collected from major metropolitan cities where the food delivery application business is most active. The results of structural equation modeling confirmed that users' approach to food delivery apps becomes more favorable when the review diagnosticity and descriptive norms were improved and when the perceived multidimensional risk expected to be associated with app use is mitigated. Additionally, we found that the positive influence of these attitudes on the actual intention to accept delivery applications became weaker at higher levels of perceived risk. These empirical results may contribute to the formation of strategic and systematic guidelines for promoting the expansion of the recently emerging O2O service platform across diverse sectors. Namely, the significance of this study lies in that it has raised awareness regarding the strategic considerations that such new O2O service providers should take into account for their market positions, in addition to discovering factors that could aid the prompt expansion of the applications' user base.

An Empirical Study on the Relationship between the Capabilities and Sales Growth of Research-based Spin-off Companies (연구소기업의 역량과 매출성장 간의 관계에 관한 실증연구)

  • Ki, Inyoung;Lee, Sunje;Yi, Sangyoon
    • Journal of Korea Technology Innovation Society
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    • v.21 no.4
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    • pp.1445-1473
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    • 2018
  • This study aims to analyze research-based spin-off companies, which are established in Innopolis to promote the commercialization of R&D outputs of public institutions. We analyzed 175 technology-based start-ups, which were founded before 2016, to examine how the companies' capabilities affect the sales growth rate. The results show that technological capability and entrepreneurial capability have positive relations with sales growth, while network capability and finance capability do not have significant associations. In addition, R&D intensity (R&D expenditure per employee) has moderating effects on the association between firm capabilities and sales growth rate since it strengthens the effect of technological capability and entrepreneurial capability but weakens the influence of network capability. This study contributes to widening the understanding of the importance of capabilities of research-based spin-off companies and their performance, and differs from most previous literature since it uses objective and quantitative data. It further suggests policy implications that the enhancement of technological and entrepreneurial capability are important for the stable growth of technology-based startups in the early stage.

Cinematic Adaptation of Brecht's Gestus (브레히트 연기론의 영화적 변용 양상)

  • Kim, Jong-Guk
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.1
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    • pp.59-67
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    • 2019
  • This article examines how Brecht's Gestus is borrowed and transformed into the film. I examined the critical debates on the film's use of Brecht and the style of Brecht's acting adopted in radical experimental films and Hollywood films. In addition, through the case of Korean film actor/ress, I sought to apply the Brechtian theory. First, despite the criticism that the film's acceptance of Brecht is overly formal and mechanical, film theory and practice reflect Brecht's ideas. In particular, regardless of the socio-political situation of Brecht's day, his Gestus is suitable and useful for film acting. Brecht's thought was realized by technological innovations such as montage and computer special effects, and above all, the social attitude of the actor was popularized through the education of the audience. Second, his strategy on performance is no longer unfamiliar, and goes beyond the boundaries of contradictory daily life and art, and becomes the pleasure of popular film. Although the intentions of naturalism and anti-naturalism in acting arts are different, the process and effects look at the same point. Third, through the case of Korean film actor/ress as an attempt of popular understanding about Brecht strategy, I could confirm the possibility of searching identity of Korean film actor/ress.