• 제목/요약/키워드: turn key

검색결과 283건 처리시간 0.024초

시공단계 위험요소 분류체계 구축을 통한 건설 프로젝트 관리모듈 개발에 관한 연구 (Study on Development of Construction Management Module based on Risk factor classification system at Construction Phase)

  • 이주성;문성곤;전영진;김주형;김재준
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2009년도 춘계 학술논문 발표대회 학계
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    • pp.199-202
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    • 2009
  • Turn-key and CMF(CM for Fee) have been selected as procurement paths of large public projects in Korea. However, recently, researches and discussions on CMR(CM at Risk) have been popular as the Korean government seeks for alternative procurement paths to enhance the performance. In the CMR projects, the part who is responsible for construction management should predict and control the potential risks for guaranteeing benefits. In this research, CMR projects in which a general contractor plays the role as CMr is mainly analyzed. We give attentions to risk management during construction process given that subcontractors, main parts in this phase, work in various ways and thus more chances for faults exist. In this case, CMr manages risks to control the procedure of project. So, potential risk factors can constitute the database, and that database can be matched to following activity. And construction manager can forecast measures of risk using the result of matching. This chain of activities increase efficiency in roles of CMr on CMR(CM at Risk). Furthermore this study will propose one of the solution of Construction Management Module.

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부산대학교 어린이병원 건립사업 CM 수행사례 (A Case Study of Construction Management for Pusan National University Children's Hospital)

  • 양진국;이민현
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2007년도 정기학술발표대회 논문집
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    • pp.13-18
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    • 2007
  • 보건복지부의 지원으로 건립하는 부산${\cdot}$경남 최초의 어린이전문병원 건립공사는 양산부산대학교병원과의 연계로 최고시설의 의료타운건립을 목표로 수행중이며 건설사업관리(CM)라는 체계적이고 과학적인 관리기법의 도입 및 적용을 통해 건설프로젝트의 비생산적이고 비효율적인 요소를 제거하여 생산성과 효율성을 향상시키고자 하는 것이다. 이에 본 연구에서는 어린이병원건립사업에 사업관리기법을 설계이전단계부터 턴키업체선정, 시공, 설계VE, PMIS구축, 유지관리단계의 사업 전(全)단계에 적용하여 발생한 효과와 분야별 기술자를 활용한 기본 및 실시설계VE를 통한 사업비 절감 및 공기단축 효과를 제시하고자 한다.

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Si 박막 태양전지의 세계 최고 제품을 위한 개발 방향

  • 이헌민
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2009년도 제38회 동계학술대회 초록집
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    • pp.19-19
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    • 2010
  • 최근 박막 태양전지의 시장 점유율이 전체 태양전지 시장에서 지속적으로 성장하고 있다. 이러한 박막 태양전지의 점유율은 주로 Fist Solar 사의 CdTe 박막 태양전지에 의해 이루어지고 있으며 Si 계 박막 태양전지와 CIGS 박막 태양전지 성장은 비교적 크지 않은 것이 현실이다. CdTe 박막 태양전지는 양산 효율이 약 10.5%에 달하고, 원가는 1$/W 이하 수준에 도달한 것으로 알려져 있으며, 향후 2011년 까지 양산 능력을 2 GW로 확대할 계획을 가지고 있다. Fist solar사는 Cd란 환경유해 물질을 메인 광흡수층에 포함하고 있다는 CdTe 박막 태양전지 제품적인 약점에도 불구하고 원가 절감, 투자비 최소화, 및 제품 성능 향상을 통해 태양전지 시장의 절대적인 강자로 떠오르고 있다. 이러한 성공의 배경에는 단순한 사업 전략적인 성공요인 외에도 제품의 기술적 경쟁력 확보가 무엇보다도 중요한 요소인 것으로 판단된다. Si 계 박막 태양전지의 경우 현재 AMAT 사 및 Oelikon 사와 같은 주요 turn-key 회사를 중심으로 생산량을 확대해가고 있으며, MHI 사, Kaneka 사, 및 Uni-Solar 사와 같은 Si 계 박막 태양전지 전문회사를 중심으로 제품의 효율 향상, 원가 절감, 및 투자비 감소를 위한 연구개발이 진행되고 있다. 본 발표에서는 이러한 박막 태양전지 전반적인 환경을 기반으로 향후 태양전지 시장 및 사업환경의 변화와 주요 박막 태양전지 기술 개발 방향 및 상업적 의미에 대해 논의하고자 하며, Si 계 박막 태양전지가 궁극적으로 세계 최고 수준의 제품이 되기 위해서 필요한 사업적 환경, 기술 개발 방향 및 주요 기술개발 이슈들에 대해 논의하고자 한다.

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Redox Regulation of Apoptosis before and after Cytochrome C Release

  • Chen, Quan;Crosby, Meredith;Almasan, Alex
    • Animal cells and systems
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    • 제7권1호
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    • pp.1-9
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    • 2003
  • Programmed cell death, or apoptosis, is one of the most studied areas of modern biology. Apoptosis is a genetically regulated process, which plays an essential role in the development and homeostasis of higher organisms. Mitochondria, known to play a central role in regulating cellular metabolism, was found to be critical for regulating apoptosis induced under both physiological and pathological conditions. Mitochondria are a major source of reactive oxygen species (ROS) but they can also serve as its target during the apoptosis process. Release of apoptogenic factors from mitochondria, the best known of which is cytochrome c, leads to assembly of a large apoptosis-inducing complex called the apoptosome. Cysteine pretenses (called caspases) are recruited to this complex and, following their activation by proteolytic cleavage, activate other caspases, which in turn target for specific cleavage a large number of cellular proteins. The redox regulation of apoptosis during and after cytochrome c release is an area of intense investigation. This review summarizes what is known about the biological role of ROS and its targets in apoptosis with an emphasis on its intricate connections to mitochondria and the basic components of cell death.

Latent Semantic Analysis Approach for Document Summarization Based on Word Embeddings

  • Al-Sabahi, Kamal;Zuping, Zhang;Kang, Yang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제13권1호
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    • pp.254-276
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    • 2019
  • Since the amount of information on the internet is growing rapidly, it is not easy for a user to find relevant information for his/her query. To tackle this issue, the researchers are paying much attention to Document Summarization. The key point in any successful document summarizer is a good document representation. The traditional approaches based on word overlapping mostly fail to produce that kind of representation. Word embedding has shown good performance allowing words to match on a semantic level. Naively concatenating word embeddings makes common words dominant which in turn diminish the representation quality. In this paper, we employ word embeddings to improve the weighting schemes for calculating the Latent Semantic Analysis input matrix. Two embedding-based weighting schemes are proposed and then combined to calculate the values of this matrix. They are modified versions of the augment weight and the entropy frequency that combine the strength of traditional weighting schemes and word embedding. The proposed approach is evaluated on three English datasets, DUC 2002, DUC 2004 and Multilingual 2015 Single-document Summarization. Experimental results on the three datasets show that the proposed model achieved competitive performance compared to the state-of-the-art leading to a conclusion that it provides a better document representation and a better document summary as a result.

HMR형 냉동 별미밥에 대한 소비자 인식 및 구매실태 (Consumer Perception and Purchase Pattern of HMR Type Flavored Cooked Rice)

  • 최지유;김경섭;오석태
    • 한국식품영양학회지
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    • 제32권4호
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    • pp.385-394
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    • 2019
  • This study was designed as the precedent research to develop improve the HMR type flavored cooked rice, by analyzing the consumer perception and purchase pattern. This will in turn provide base data to that will help in the development of products that meet consumer's convenience and quality demands. An online survey of 247 people (63.5%) in the age of 20 to 60 was conducted on January 2019. For the primary reason of buying those products, the survey respondents chose a convenience of 71.7%. They are likely to buy 1~2 times a month (40.5%) in hypermarkets (63.6%). The channel choice showed meaningful difference between segments (p<0.01). 89.1% of respondents replied that they are willing to purchase frozen flavored cooked rice in the future. The Key Purchasing factor appeared to be the flavor (5.80), while nutrition (4.89) was chosen as the least important factor. For flavor preference, sea food received the highest score (5.05), while radish kimchi flavor received the lowest (4.02) with a meaningful difference by gender and age (p<0.01). Consumers who sought nutrition, convenience and adventure in HMR products had higher willingness to re-purchase. Developing healthy, flavorful, sensory, and enjoyable HMR products will be critical in the fulfillment of diverse consumer needs.

CacheSCDefender: VMM-based Comprehensive Framework against Cache-based Side-channel Attacks

  • Yang, Chao;Guo, Yunfei;Hu, Hongchao;Liu, Wenyan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제12권12호
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    • pp.6098-6122
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    • 2018
  • Cache-based side-channel attacks have achieved more attention along with the development of cloud computing technologies. However, current host-based mitigation methods either provide bad compatibility with current cloud infrastructure, or turn out too application-specific. Besides, they are defending blindly without any knowledge of on-going attacks. In this work, we present CacheSCDefender, a framework that provides a (Virtual Machine Monitor) VMM-based comprehensive defense framework against all levels of cache attacks. In designing CacheSCDefender, we make three key contributions: (1) an attack-aware framework combining our novel dynamic remapping and traditional cache cleansing, which provides a comprehensive defense against all three cases of cache attacks that we identify in this paper; (2) a new defense method called dynamic remapping which is a developed version of random permutation and is able to deal with two cases of cache attacks; (3) formalization and quantification of security improvement and performance overhead of our defense, which can be applicable to other defense methods. We show that CacheSCDefender is practical for deployment in normal virtualized environment, while providing favorable security guarantee for virtual machines.

Benjaminian Ruskin: Redemptive Myth and Modernity

  • Sohn, Jitae
    • 영어영문학
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    • 제55권6호
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    • pp.937-959
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    • 2009
  • The Queen of the Air, John Ruskin-s highly elliptical publication of 1869, elaborates a complex mythology as a way of responding to the prevalence of scientific thinking, widespread environmental degradation, the pernicious effects of political economy, and mechanistic labor. Benjamin-s desire to rescue human experience from prevailing scientific conceptions is reminiscent of Ruskin-s fear that the peculiar power that shapes the unities of the natural world is simultaneously being "beaten down by the philosophers into a metal or evolved by them into a gas" and obscured by the dreams and theories of philosophers and theologians. As a critic remarks, in Benjamin-s-and, we would add, Ruskin-s-view, "what the modern era lacked was a basis for continuity which would prevent experience from disintegrating into a desultory and meaningless series of events." Despite its frenetic hyper-associativity, then, The Queen of the Air contains a key element that Benjamin believes is necessary for "redemption": the desire for a new form of consciousness that recognizes links to the past and thus to the longings and dreams of our forebears. Thus, although Ruskin most immediately influences Proust, who in turn influences Benjamin, Benjamin-s thought is far more Ruskinian than critics have heretofore observed. Just as Benjamin helps us make sense of the ways in which The Queen of the Air is caught in the grip of the shocking associativity of modern life, so Ruskin assists us in discerning similar impulses in Benjamin-s attraction to a form of archaic consciousness that can, by altering the modern form of perception, reenchant the present.

보호동기이론에 기반한 조직구성원의 보안강화 : 보안정책에 대한 신뢰와 보안스트레스의 매개효과를 중심으로 (Security Enhancement of Public Organization Members Based on the Protection Motivation Theory)

  • 최희영;강주영
    • 한국IT서비스학회지
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    • 제19권6호
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    • pp.83-95
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    • 2020
  • "I think security is only trying to make it uncomfortable." "10% of my work is entering IDs and passwords, such as boot passwords, mobile phone authentication numbers, etc." As reflected in the complaint above, stress caused by information security among organizations' members is increasing. In order to strengthen information security, practical solutions to reduce stress are needed because the motivation of the members is needed in order for organizations to function properly. Therefore, this study attempts to suggest key factors that can enhance security while reducing information security stress among members of organizations. To this end, based on the theory of protection motivation, trust and security stress from information security policies are set as mediating factors to explain changes in security reinforcement behavior. Furthermore, risk, efficacy, and reaction costs of cyberattacks are considered as prerequisites. Our study suggests a solution to the security reinforcement problem by analyzing the factors that influence the behavior of members of organizations. In turn, this can raise protection motivation among members.

Exploring How Gamification Design Drives Customers' Co-Creation Behavior in Taiwan

  • CHEN, Tser-Yieth;HUANG, Yu-Chen;LI, Pei-Fang
    • The Journal of Asian Finance, Economics and Business
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    • 제9권4호
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    • pp.109-120
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    • 2022
  • This study has incorporated the mechanics-dynamics-emotions (MDE) and two behavioral learning paths to investigate the customers' co-creation behavior in Taiwan. The intuitive path begins with a gamification design that reflects the customers' proactive and innovative behavior; the cognitive path begins with persuasion knowledge remarks based on rational and reactive reasoning. These two paths conclude what forms user co-creation. The study collects data of 505 active social media users in Taiwan and employs structural equation modeling. The empirical findings demonstrate persuasive knowledge and gamification design are significantly associated with self-reference, and in turn, positively associated with co-creation. It indicates that cognitive behavior plays the main role in forming co-creation. Participants are more drawn to co-creation behaviors by the marketing contents that prompt reactive behaviors than proactive ones. Therefore, marketing managers can use appropriate stimuli to enhance co-creation behavior. Companies can design activities related to users, and more accessible for reactive, instead of proactive behavior, i.e., asking for their initiatives. It also suggests that companies' marketing campaigns should involve key opinion leaders matching the product image and the target audience's preferences. The novelty of this study is to introduce a novel augmented MDE framework to extend the "dynamics" into the incubation and implementation stage.