31 results on '"Jungsik Cho"'
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2. 정치인 SNS의 메시지와 정치인 유형이 수용자의 반응에 미치는 영향
- Author
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Jungsik Cho and Jieun Lim
- Abstract
배경 및 목적 본 연구에서는 SNS 중 보편적으로 사용되고 있는 페이스북을 중심으로 정치인의 SNS 활용에 대한 효과를 살펴보고자 한다. 구체적으로 정치 커뮤니케이션 효과에 영향을 주는 메시지(개인적/사회적 메시지), 정보원 (유명/일반 정치인), 그리고 수용자 요인(이념적 성향)에 대한 선행 연구들을 토대로 SNS 맥락에서의 정치 커뮤니케이션 효과를 살펴보고자 하였다. 방법 본 연구는 정치인 SNS 내 게시된 메시지 유형과 정치인 유형에 따른 효과를 살펴보기 위해 실제 유권자들을 대상으로 한 온라인 실험을 진행하였다. 자료 수집은 온라인 조사 프로그램을 통하여 진행되었는데, 메시지 유형과 정치인 유형을 다르게 처치한 실험 자극물을 수용자에게 제시한 후 그 반응을 조사하였다. 실험에 참 여한 피험자는 투표권이 있으며, SNS를 사용하고 있는 개인이었으며, 총 응답자 수는 237명이었다. 결과 메시지 유형에 따른 정치인에 대한 태도와 구전 의도는 통계적으로 유의미한 차이가 나타났으며, 즉각적 반 응 의도의 경우, ‘댓글 달기’와 ‘공유하기’에서 유의미한 차이가 나타났다. 실험 참가자들은 개인적 메시지보 다 사회적 메시지에 보다 긍정적으로 평가하는 것을 알 수 있었다. 그리고 메시지 유형에 따른 수용자 반응 에 있어서 정치인의 유형과 수용자의 정치적 이념의 조절 효과는 대체로 나타나지 않았다. 그러나 ‘공유하기’ 반응 의도에 있어서 메시지 유형과 정치적 성향의 상호작용 효과는 나타났다. 논의 및 결론 본 연구는 정치 커뮤니케이션 효과 연구에 있어서 SNS의 특징을 고려한 새로운 관점을 제시한 것에 의의가 있다고 할 수 있다. 본 연구의 결과는 학문적으로 SNS 공간에서 정치 커뮤니케이션 메시지의 효과를 그간의 SNS 매체 이용 행동 연구 및 정치 커뮤니케이션 연구들을 종합적으로 반영하여 진행한 연구라는 점에서 의 의를 가질 수 있다. 또한 본 연구의 결과를 통하여 정치인들은 자신들의 유명 정도에 따라 메시지 전략이 달 라져야 함을 알 수 있었고, 더불어 커뮤니케이션 대상이 누구인가에 따라서도 커뮤니케이션 전략이 달라짐 을 본 연구는 보고하였다.
- Published
- 2019
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3. 시각적 요소의 활용을 통한 SNS 브랜드 커뮤니케이션 전략에 대한 탐색적 검토 및 소비자 반응과의 연계: 패션 브랜드의 인스타그램 계정 포스팅에 대한 분석
- Author
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Jungsik Cho and Jang-Sun Hwang
- Abstract
배경 및 목적 시각적 요소가 중심이 되는 3세대 SNS 플랫폼인 인스타그램 내 기업의 브랜드 커뮤니케이션 활동이 늘어 나고 있는 현 시점에서 이에 대한 실증적 분석을 통해 어떤 전략적 활동이 이루어지고 있으며, 이에 대한 소 비자 반응과의 관련성은 어떠한지를 검증하고자 하였다. 이를 통해 기업의 브랜드 커뮤니케이션 전략에 관 한 후속 연구에의 학술적 제안을 도출하고자 하였다. 방법 인스타그램의 기본적인 특성에 가장 부합되는 제품군으로 패션 업종을 선정하여 국내외 12개의 패션 브랜 드들이 각 계정에 게시한 게시물들의 내용을 분석하였다. 모두 609개의 게시물에 대해 이미지 유형, 콘텐츠 유형, 메시지 전략, 크리에이티브 전략, 소비자 반응 등을 코딩하여 이들의 분포와 관련성을 분석하였다. 결과 패션 브랜드들의 인스타그램 게시물들은 대체로 동영상보다는 사진을 많이 활용하는 것으로 나타났으며, 연출형 이미지와 제품 중심형 콘텐츠가 가장 많은 분포를 보였다. 세부 제품군-어패럴, 스포츠, SPA-간 의 차이와 국가 간의 차이 또한 일부에서 유의미한 것으로 나타났으며, 정보적 메시지 전략과 사용자 이미지 및 브랜드 이미지 크리에이티브 전략이 비교적 활발하게 사용되고 있는 것으로 나타났다. 소비자 반응은 소 비자 참여형 메시지에 대해 가장 긍정적인 것으로 나타났다. 논의 및 결론 인스타그램 게시물의 커뮤니케이션 활동에 대한 전반적인 검토가 본 연구의 결과로 제시되고 있으며, 어떤 유형 또는 전략의 메시지가 더 높은 사용자 반응을 끌어냈는지에 대한 검증 결과에 기반하여 실무적 및 학술 적 제언을 제시하였다.
- Published
- 2019
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4. Examining the Synergy Effect of Brand Messages via Multiple Media : Focusing on the Effect of Magazine-Online Combination Among Female Consumers in 20s and 30s
- Author
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Jungsik Cho, Ji Young Roh, and Hyehyun Hong
- Subjects
Multiple media ,Advertising ,General Medicine ,Psychology - Published
- 2018
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5. Evolution & Revolution : The Recent Development of Digital, Technology and Data and Their Influence on the Field of Marketing Communication
- Author
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Min-Jung Sung and Jungsik Cho
- Subjects
Marketing communication ,Advertising ,General Medicine ,Psychology - Abstract
지난 20여 년간 매체 및 마케팅 환경에서 발생한 여러 가지 변화는 소비자의 매체 이용 및 상품 구매 행동, 그리고 기업들의 마케팅 및 커뮤니케이션 방식을 크게 변화시켰다. 인터넷과 디지털 매체가 그 변화를 가속시키는 주요 요인으로 꼽히는 가운데, 빅 데이터의 등장과 활용은 기업의 커뮤니케이션 전반에 변화를 초래할 것으로 예상된다. 이에 본 연구는 빅 데이터가 기업의 커뮤니케이션 기획과 실행에 어떤 영향을 미치고 있는지 살펴보았다. 보다 구체적으로, 글로벌 기업들이 빅 데이터를 커뮤니케이션 업무에 어떻게 활용하고 있으며 그것이 조직 운영이나 업계 전체에 어떠한 변화를 초래했는지 통합커뮤니케이션(Integrated Communication) 관점에서 깊이 있게 살펴보기 위해 세계적인 다국적 기업, 광고 대행사, PR 대행사의 주요 마케팅 및 커뮤니케이션 담당 임원 등 총 23명과 전문가 면접(elite interview)을 진행하였다. 인터뷰 결과에 따르면 빅 데이터의 등장으로 참여자들은 지난 2∼3년간 많은 변화를 경험하였으며, 그 변화는 지금도 진행 중인 것으로 나타났다. 또한 기업이나 브랜드의 對소비자 커뮤니케이션 방식과 업무 형태, 그리고 업계 구조가 바뀌었으나, 이는 완전히 새로운 패러다임이 등장했다기보다는 지난 수십 년 간 논의되어 왔던 통합적 커뮤니케이션, 그리고 그 핵심적인 두 축인 소비자 중심과 매체 중립적 접근이 기술적으로 가능해지고 구현된 것임을 알 수 있었다. 또한 빅 데이터의 사용에 따라 기존 업무 구조와 역할에 상당한 변화가 일어났고, 이를 수행하기 위해 새로운 기능과 부서가 만들어지거나 일부기능의 역할과 기능이 강화되는 등 업계의 지형이 바뀌고 있는 것으로 나타났다.
- Published
- 2017
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6. Enhancing Flexible Neural Probe Performance via Platinum Deposition: Impedance Stability under Various Conditions and In Vivo Neural Signal Monitoring
- Author
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Daerl Park, Hyeonyeong Jeong, Jungsik Choi, Juyeon Han, Honglin Piao, Jaehyun Kim, Seonghoon Park, Mingu Song, Dowoo Kim, Jaesuk Sung, Eunji Cheong, and Heonjin Choi
- Subjects
flexible printed circuit board (FPCB) ,low impedance ,platinum coating ,monitoring ,awake animals ,Mechanical engineering and machinery ,TJ1-1570 - Abstract
Monitoring neural activity in the central nervous system often utilizes silicon-based microelectromechanical system (MEMS) probes. Despite their effectiveness in monitoring, these probes have a fragility issue, limiting their application across various fields. This study introduces flexible printed circuit board (FPCB) neural probes characterized by robust mechanical and electrical properties. The probes demonstrate low impedance after platinum coating, making them suitable for multiunit recordings in awake animals. This capability allows for the simultaneous monitoring of a large population of neurons in the brain, including cluster data. Additionally, these probes exhibit no fractures, mechanical failures, or electrical issues during repeated-bending tests, both during handling and monitoring. Despite the possibility of using this neural probe for signal measurement in awake animals, simply applying a platinum coating may encounter difficulties in chronic tests and other applications. Furthermore, this suggests that FPCB probes can be advanced by any method and serve as an appropriate type of tailorable neural probes for monitoring neural systems in awake animals.
- Published
- 2024
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7. Impact of Impedance Levels on Recording Quality in Flexible Neural Probes
- Author
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Juyeon Han, Jungsik Choi, Hyeonyeong Jeong, Daerl Park, Eunji Cheong, Jaesuk Sung, and Heon-Jin Choi
- Subjects
neural probe ,microelectrode ,impedance ,flexible polymer ,coating ,Chemical technology ,TP1-1185 - Abstract
Flexible neural probes are attractive emerging technologies for brain recording because they can effectively record signals with minimal risk of brain damage. Reducing the electrode impedance of the probe before recording is a common practice of many researchers. However, studies investigating the impact of low impedance levels on high-quality recordings using flexible neural probes are lacking. In this study, we electrodeposited Pt onto a commercial flexible polyimide neural probe and investigated the relationship between the impedance level and the recording quality. The probe was inserted into the brains of anesthetized mice. The electrical signals of neurons in the brain, specifically the ventral posteromedial nucleus of the thalamus, were recorded at impedance levels of 50, 250, 500 and 1000 kΩ at 1 kHz. The study results demonstrated that as the impedance decreased, the quality of the signal recordings did not consistently improve. This suggests that extreme lowering of the impedance may not always be advantageous in the context of flexible neural probes.
- Published
- 2024
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8. Development of an active deflector system for sunroof buffeting noise control
- Author
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Kang-Duck Ih, Jungsik Cho, Hyung-Seok Kook, and Seong-Ryong Shin
- Subjects
Noise ,Engineering ,Mechanics of Materials ,business.industry ,Mechanical Engineering ,Acoustics ,Automotive Engineering ,Noise control ,Sunroof ,Aerospace Engineering ,General Materials Science ,Aeroelasticity ,business - Abstract
Sunroof buffeting noise is annoying to drivers and passengers. The conventional method for suppressing sunroof buffeting noise is to use passive deflectors. A recent trend has been large sunroof openings, such as panoramic sunroofs, in accordance with customer preferences for a feeling of openness. Since sunroof buffeting noise tends to become louder as the sunroof opening area becomes larger, a conventional passive deflector may not be a solution in this case, and a new effective method for reducing the sunroof buffeting noise is required. Previous work showed that a strong, self-sustained tonal noise, generated from a Helmholtz resonator exposed to a grazing flow, could be significantly reduced by closed-loop control of an active deflector installed near the upstream edge of the resonator opening. The active deflector system is a cascade of a microphone sensor mounted inside the cavity, controller, power amplifier, and deflector mechanism vibrated by a voice coil actuator. Since the acoustic pressure inside the cavity is influenced by the shear layer modified by the active deflector, the active deflector and acoustic response of the cavity form a closed-loop control system. The main objective of the present study is to implement this technology on a real vehicle and evaluate whether the technology can be utilized to suppress sunroof buffeting noise. A simple active deflector system was assembled and installed in a compact-sized hatchback car with a sunroof opening length of 460 mm. The active deflector system was tested both in a wind tunnel and on a proving ground. The test results showed that the active deflector reduced the sunroof buffeting noise by as much as 25 dB. The active deflector was shown to be stable and robust regardless of changes in the wind speed and wind yaw angle.
- Published
- 2013
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9. Effects of Air Transportation Cause Physiological and Biochemical Changes Indicative of Stress Leading to Regulation of Chaperone Expression Levels and Corticosterone Concentration
- Author
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Seungwan Jee, Eon-Pil Lee, SeHyun Lee, Jae Ho Lee, Dae Youn Hwang, Changjoon Bae, Jong-Min Woo, Young Jin Jung, Sunbo Shim, Hong-Sung Kim, Suhae Lee, Hae-Wook Choi, Byoungguk Kim, Kabryong Chae, JungSik Cho, Chuelkyu Kim, Byung-Wook Cho, and Jisoon Sin
- Subjects
Male ,medicine.medical_specialty ,Aircraft ,F344 rats ,General Biochemistry, Genetics and Molecular Biology ,Toxicology ,chemistry.chemical_compound ,Recovery period ,Sex Factors ,Corticosterone ,Internal medicine ,medicine ,Animals ,HSP70 Heat-Shock Proteins ,Endoplasmic Reticulum Chaperone BiP ,Group level ,Heat-Shock Proteins ,Behavior, Animal ,General Veterinary ,biology ,General Medicine ,Rats, Inbred F344 ,Rats ,Hsp70 ,Endocrinology ,chemistry ,Chaperone (protein) ,Aerospace Medicine ,biology.protein ,Tissue type ,Female ,Animal Science and Zoology ,Stress, Psychological ,Molecular Chaperones ,Hormone - Abstract
Laboratory animals generally experience numerous unfamiliar environmental and psychological influences such as noises, temperatures, handling, shaking, and smells during the process of air transportation. To investigate whether stress induced by air transportation affects stress-related factors in animals, the levels of hormone and chaperone protein were measured in several tissues of F344 rats transported for 13 h and not transported. Herein, we conclude that the levels of corticosterone, HSP70, and GRP78 were significantly increased in the transported group compare to not transported group, but they were rapidly restored to the not transported group level after a recovery period of one week. However, the magnitude of induction and restoration levels of these factors varied depending on the tissue type. Thus, these results suggest that air transportation should be considered for the improvement of laboratory animal health and to reduce the incidence of laboratory animal stress.
- Published
- 2009
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10. Influence of Change in Media Environment on TV Advertisements’ Exposure Effect : Analysis from 2000 to 2015
- Author
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Jungsik, Cho, primary and Kim, Dajeong, additional
- Published
- 2017
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11. Study on the Usage of the Series Each Time Terrestrial TV Content in a Multi-Media Environment
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Yeonkyeong Suh and Jungsik Cho
- Abstract
과거에 비해 다양한 매체의 출현으로 매체 환경이 변화하면서 수용자들은 다양한 채널이나 플랫폼의 이용이 가능해졌다. 이러한 환경에서 본 연구는 각각의 채널이나 매체 이용보다 플랫폼을 통해 이용하는 콘텐츠 자체가 중요해지고 있다는 점에 주목하였다. 과거 지상파 TV 본방송을 이용하던 수용자들이 본방송 이외 다양한 방법으로 매체를 이용하는 경우가 증가하면서 채널이나 매체보다 지상파TV 콘텐츠 자체의 노출과 이용이 더 중요하다고 생각했기 때문이다. 이에 따라 콘텐츠의 노출과 이용을 수용자들의 실질적인 행동을 통해 알아보기 위해 TV 매체의 시청률이라는 실제 데이터의 추적을 통해 시간의 경과와 함께 TV 수상기 내에서 이루어지는 지상파TV 콘텐츠의 소비 패턴을 살펴보았다. 이를 위해 매체 환경의 변화에 따른 콘텐츠 이용 패턴을 비교하기 위한 두 시점 간 비교 분석과, 장기적인 콘텐츠 이용 패턴을 세부적으로 알아보기 위해 특정 시점 이후 6개월간의 콘텐츠 이용을 분석했다. 첫째, 2004년에 비해 2013년의 지상파 TV 본방송의 이용이 줄어든 반면, CATV의 이용은 증가한 것으로 나타나 이전에 비해 수용자들의 TV 콘텐츠 이용이 더욱 장기화되고 있음을 보여 주었다. 또한 프로그램 유형에 따라서도 두 시점 간 평균 시청률과 시청 점유율에 차이를 보이면서 이전보다 수용자들의 TV 콘텐츠 이용에 있어 시간적 제약이 줄어들었음을 알 수 있었다. 성별에 따라서는 별다른 차이를 보이지 않았으며, 연령대별 지상파TV 콘텐츠의 이용은 전체적으로 이전에 비해 모든 연령대에서 본방송 이용은 줄어들었다. 특히 연령이 낮을수록 본방송에서의 이탈은 많았던 반면, CATV 채널을 통해 자신이 필요한 지상파TV 콘텐츠를 편의에 맞게 이용하는 경우가 많다는 것을 알 수 있었다. 둘째, 수용자들의 장기적인 TV콘텐츠 이용 패턴을 보다 세부적으로 알아보기 위해 2013년 5월부터 10월까지 6개월간 지상파TV와 CATV에서의 시청률과 점유율의 변화를 살펴보았다. 그 결과, 특히 CATV에서의 재방송 시청률이 지상파 재방송 시청률보다 더 높게 나타나 시간이 경과되었음에도 불구하고 콘텐츠가 더 많이 이용되고 있음을 알 수 있었다. 프로그램 유형별로도 콘텐츠 이용에 차이를 보였으나, 성별은 별다른 영향을 미치지 않았으며, 연령대별로는 전체적으로 연령이 높아짐에 따라 본방송뿐 아니라 다양한 시기의 재방송의 시청률이 높게 나타났다. 본 연구는 하나의 콘텐츠가 시간의 경과에 따라 장기적으로 소비되는 패턴, 그리고 다양한 플랫폼에서 소비되는 패턴에 대한 동시 조사이다. 이를 위해 콘텐츠의 장기간 소비에 초점을 두고 피플미터를 이용한 객관적 수치인 시청률을 사용했다는 점에서 기존 연구들과 차별성을 갖는다. 또한 동일한 콘텐츠가 얼마나 오랫동안, 어떤 방식으로 소비되는지를 분석함으로써 지상파 TV콘텐츠의 영향력에 대한 재조명의 기회를 마련했다는 점에서 의미를 갖는다.
- Published
- 2017
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12. Effects of age and strain on small intestinal and hepatic antioxidant defense enzymes in Wistar and Fisher 344 rats
- Author
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In-Surk Jang, Kabryong Chae, and JungSik Cho
- Subjects
Male ,Aging ,medicine.medical_specialty ,Antioxidant ,medicine.medical_treatment ,Antioxidants ,Superoxide dismutase ,Lipid peroxidation ,chemistry.chemical_compound ,Species Specificity ,Malondialdehyde ,Internal medicine ,Intestine, Small ,medicine ,Animals ,Rats, Wistar ,Glutathione Transferase ,chemistry.chemical_classification ,Glutathione Peroxidase ,biology ,Superoxide Dismutase ,Glutathione peroxidase ,Rats, Inbred F344 ,Small intestine ,Rats ,Cytosol ,Enzyme ,medicine.anatomical_structure ,Endocrinology ,Liver ,chemistry ,Ageing ,Immunology ,biology.protein ,Developmental Biology - Abstract
Age- and strain-associated alterations in intestinal and hepatic antioxidant defense enzymes including superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), and glutathione-S-transferase (GST), and lipid peroxidation were examined in Wistar and F344 rats of both strains aged 2 weeks, 2.5, 10 and 23 months. In the small intestine, activities of SOD and GSH-PX and lipid peroxidation were not affected by age or strain difference. Intestinal GST activity was noticeably increased with age in both strains, but somewhat different pattern of age-related changes occurred between two strains. Wistar rats aged 23 months had a significantly higher intestinal GST activity than corresponding age of F344 rats. In the liver, cytosolic SOD activity was not affected by age and strain, whereas GSH-PX and GST activities and lipid peroxidation were markedly influenced by age or strain difference. In particular, hepatic GSH-PX in Wistar rats resulted in a significant increase after 10 months of age and stayed at this level till 23 months of age we examined. Also, Wistar rats showed a higher lipid peroxidation in the liver of 2.5 months old when compared with corresponding age of F344 rats. However, F344 rats did not show any significant age-dependent changes in GSH-PX and lipid peroxidation. In contrast, the GST activity did show much of an age-associated alteration in both strains. Age-associated change in GST activity of Wistar rats was much greater than that observed in F344 rats, especially late in the lifetime (23 months old). It is concluded from our results that age has profound impact on development of some antioxidant enzymes in the small intestine and liver and also strain-related difference in development of antioxidant defense system was observed at least some time of rat life.
- Published
- 2001
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13. Influence of Age on Duodenal Brush Border Membrane and Specific Activities of Brush Border Membrane Enzymes in Wistar Rats
- Author
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KeunKi Jung, JungSik Cho, and In-Surk Jang
- Subjects
Male ,Aging ,medicine.medical_specialty ,Brush border ,Duodenum ,Ileum ,Disaccharidases ,digestive system ,General Biochemistry, Genetics and Molecular Biology ,Sucrase ,Jejunum ,Internal medicine ,Intestine, Small ,medicine ,Animals ,Intestinal Mucosa ,Rats, Wistar ,Lactase ,Microvilli ,General Veterinary ,Chemistry ,Body Weight ,alpha-Glucosidases ,Organ Size ,gamma-Glutamyltransferase ,General Medicine ,Alkaline Phosphatase ,beta-Galactosidase ,Disaccharidase ,Small intestine ,Rats ,medicine.anatomical_structure ,Endocrinology ,Animal Science and Zoology ,Maltase - Abstract
To examine age-related changes in the morphology of intestinal brush border membrane (BBM; microvilli) and specific activities of intestinal BBM enzymes including alkaline phosphatase (ALP), gamma-glutamyl transpeptidase (gamma-GT), and disacchridase, four groups of Wistar rats were sacrificed at 2.5 wk, 5 wk, 5 mon and 23 mon. In an electron microscopic examination, morphologically a less dense BBM structure in the duodenum of rats aged 23 mon was observed than that of rats aged 5 mon. Specific activity of ALP in the duodenum from 5-mon-old rats was significantly higher than from rats aged 2.5 wk and 23 mon. The mucosal tissues from 5-wk-old rats had significantly higher specific activity of gamma-GT than did tissues from the other ages. In sucrase and maltase specific activities, 5-mon-old rats had higher activities of these enzymes than other age groups, especially 2.5-wk- and 23-mon-old rats. There was also a significant effect of site on intestinal BBM enzyme activities in post-weanling rats. Regional gradients of ALP and gamma-GT along the entire small intestine (duodenumjejunumileum) were remarkable. Disaccharidase activities peaked in the jejunum and declined toward both the duodenum and ileum. Taken together the result obtained here suggested that 5-mon-old rats had the most elevated intestinal function. This result also strongly indicated that the structure of the intestinal BBM and development of intestinal BBM enzymes in Wistar rate were markedly influenced by age during the postnatal period.
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- 2000
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14. Age-Related Changes in Antioxidant Enzyme Activities in the Small Intestine and Liver from Wistar Rats
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KeunKi Jung, In-Surk Jang, and JungSik Cho
- Subjects
Male ,Aging ,medicine.medical_specialty ,Antioxidant ,medicine.medical_treatment ,Antioxidants ,General Biochemistry, Genetics and Molecular Biology ,Lipid peroxidation ,Superoxide dismutase ,chemistry.chemical_compound ,Internal medicine ,Intestine, Small ,medicine ,Animals ,Rats, Wistar ,Glutathione Transferase ,chemistry.chemical_classification ,Glutathione Peroxidase ,Mucous Membrane ,General Veterinary ,biology ,Superoxide Dismutase ,Glutathione peroxidase ,General Medicine ,Glutathione ,Small intestine ,Rats ,Cytosol ,Endocrinology ,Enzyme ,medicine.anatomical_structure ,Liver ,chemistry ,biology.protein ,Animal Science and Zoology ,Lipid Peroxidation - Abstract
The present study was designed to determine age-related changes in intestinal and hepatic antioxidant enzymes including superoxide dismutase (SOD), glutathione peroxidase (GSH-PX), and glutathione-S-transferase (GST), and lipid peroxidation in male Wistar rats (n = 8) aged 2 wk, 2.5 mon, 5 mon, 10 mon, and 23 mon. In the small intestine, cytosolic SOD, GSH-PX activities and lipid peroxidation were not affected by age, but intestinal GST activity was noticeably enhanced as age increased. In particular, intestinal GST activity in 23 mon old rats was 3 times as strong as that in 2 wk old rats. In the liver, the activity of hepatic cytosolic SOD was not affected by age, whereas GSH-PX and GST activities in rats aged 10 mon and 23 mon were much stronger than those in rats aged 2 wk, 2.5 mon, and 5 mon. The increased lipid peroxidation in 2.5 mon and 5 mon old rats was observed when compared with that of other groups. It is therefore concluded from the results presented here that age greatly increases GST activity in the small intestinal mucosae and increasing GSH-PX, GST activities and lipid peroxidation in the liver from male Wistar rats.
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- 1998
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15. Differential effects of aging on NADPHdiaphorase and VIP neurons in cerebral cortex of rats
- Author
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Won Kyu Lee, Jungsik Cho, Changok Kim, Junghye Kim, Heekyung Ahn, and Youngbuhm Huh
- Subjects
Male ,Senescence ,Aging ,medicine.medical_specialty ,Vasoactive intestinal peptide ,Central nervous system ,Cell ,Cell Count ,Biology ,NADPH diaphorase ,Rats, Sprague-Dawley ,Internal medicine ,medicine ,Animals ,Cell Size ,Cerebral Cortex ,Neurons ,NADPH dehydrogenase ,General Neuroscience ,NADPH Dehydrogenase ,Rats ,medicine.anatomical_structure ,Endocrinology ,nervous system ,Cerebral cortex ,Quantitative analysis (chemistry) ,Neuroscience ,Vasoactive Intestinal Peptide - Abstract
Age-related changes of NADPH-diaphorase (NADPH-d) and vasoactive intestinal polypeptide (VIP) were examined in the rat brain. Aged (24 months) rats showed a significant decrease in the number of VIP-immunoreactive (IR) neurons in the cerebral cortex when compared with control (4 months) rats. However, the number of NADPH-d-positive neurons was not significantly different in the two groups. Quantitative analysis of cell areas revealed a significant shrinkage of VIP-IR neurons in the aged group, whereas no further cell shrinkage was noted for NADPH-d-positive neurons compared with the control group. These morphometric results demonstrate that NADPH-d-containing neurons are more resistant to aging than the VIP-IR neurons in the cerebral cortex of rats.
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- 1997
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16. Corporate Communication Management on Social Networking Sites : Analysis of Communication Strategies on Corporate Facebook pages
- Author
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조정식 ( Jungsik Cho ) and 성민정 ( Minjung Sung )
- Subjects
Pharmacology (medical) - Abstract
SNS에 대한 폭발적 관심과 함께 많은 기업들이 SNS를 사용해 공중들과 관계를 구축하고자 하지만, 상호작용성과 대화성과 같은 SNS의 매체적 특성이 제대로 활용되지 않는 경우가 많다. 이에 본 연구는 PR 관점에서 기업 커뮤니케이션 차원의 SNS의 사용 현황과 효과를 살펴보았으며, 특히 글로벌 환경에서 문화적 특성이 SNS 운영과 관리에 어떻게 전략적으로 적용되어야 하는가에 대해 탐색하였다. 이를 위해 한국에 진출한 다국적 기업과 한국 기업 총 45개의 기업 페이스북 페이지 사용방식을 온라인 관계 관리의 틀에서 비교하였으며, 선행 연구의 틀에 기반하여 각 기업 페이스북 페이지에 포스팅 된 메시지의 내용에 대해 기업 커뮤니케이션 전략과 메시지 목적, 상호작용성, 관계 구축 전략, 그리고 참여 전략 등을 항목화하여 분석하였다. 연구 결과 기업들은 기업 커뮤니케이션 차원보다는 마케팅적 차원에서 페이스북을 활발하게 사용하는 것으로 나타났으며, 이용자 반응 면에서도 기업 메시지보다는 제품/서비스 관련 메시지들이 효과적인 것으로 나타났다. 또한 본 연구의 결과는 페이스북 사용 방식의 문화적 차이를 보여줄 뿐만 아니라, 커뮤니케이션 목적에 따라 메시지 전략이 정교화되어야 함을 시사한다.
- Published
- 2016
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17. Advertising Faculty Describes Theory V. Practice Debate
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Jungsik Cho, Helen E. Katz, and Kent M. Lancaster
- Subjects
Educational research ,0508 media and communications ,Higher education ,business.industry ,Political science ,05 social sciences ,050801 communication & media studies ,Public relations ,business - Published
- 1990
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18. Microarray analysis of insulin-regulated gene expression in the liver: The use of transgenic mice co-expressing insulin-siRNA and human IDE as an animal model
- Author
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Suyoun Yim, Byung Guk Kim, In-Surk Jang, Sujin Seo, Kabryong Chae, JungSik Cho, Seungwan Jee, Chang-Jun Bae, Jisoon Sin, Mee-Kyung Jang, Sunbo Shim, Chuelkyu Kim, Dae Youn Hwang, Min Sun Kim, Suhae Lee, Yong Kyu Kim, and Byoungchun Lee
- Subjects
Regulation of gene expression ,Microarray ,Microarray analysis techniques ,Transgene ,Insulin ,medicine.medical_treatment ,General Medicine ,Biology ,Molecular biology ,Gene expression profiling ,Complementary DNA ,Gene expression ,Genetics ,medicine - Abstract
To characterize the changes in global gene expression in the livers of H1/siRNAinsulin-CMV/hIDE transgenic (Tg) mice in response to the reduced bioavailability of insulin, total RNA extracted from the livers of 20-week-old Tg and non-Tg mice was converted to cDNA, labeled with biotin and hybridized to oligonucleotide microarrays. The microarray results were confirmed by a real-time reverse transcription-polymerase chain reaction. Two hundred and fifty-one and 73 genes were up- and down-regulated, respectively by insulin in H1/siRNAinsulin-CMV/hIDE Tg mice compared to the controls. Genes encoding for physiological processes, extracellular defense response and response to biotic stimuli were significantly over-represented in the up-regulated group. Among the down-regulated transcripts, those encoding for extracellular matrix proteins were dramatically over-represented, followed by those related to monooxygenase and oxidoreductase activities. The major genes in the up-regulated categories included Egr1, Saa2, Atf3, DNAJB1 and cCL2, whereas those in the down-regulated categories were Cyp17a1, Adn, Gadd45g, Eno3 and Moxd1. These results indicate that the microarray analysis identifies several gene functional groups and individual genes that respond to a sustained reduction in the insulin levels in the livers of Tg mice. These results also suggest that microarray testing is a useful tool for the better understanding of insulin-regulated diabetes-related diseases.
- Published
- 2007
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19. Microarray analysis of insulin-regulated gene expression in the liver: the use of transgenic mice co-expressing insulin-siRNA and human IDE as an animal model
- Author
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Seungwan, Jee, Daeyoun, Hwang, Sujin, Seo, Yongkyu, Kim, Chuelkyu, Kim, Byungguk, Kim, Sunbo, Shim, Suhae, Lee, Jisoon, Sin, Changjun, Bae, Byoungchun, Lee, Meekyung, Jang, Minsun, Kim, Suyoun, Yim, Insurk, Jang, Jungsik, Cho, and Kabryong, Chae
- Subjects
Mice ,Gene Expression Regulation ,Liver ,Gene Expression Profiling ,Molecular Sequence Data ,Animals ,Humans ,Insulin ,Mice, Transgenic ,RNA, Small Interfering ,Insulysin ,Oligonucleotide Array Sequence Analysis - Abstract
To characterize the changes in global gene expression in the livers of H1/siRNAinsulin-CMV/hIDE transgenic (Tg) mice in response to the reduced bioavailability of insulin, total RNA extracted from the livers of 20-week-old Tg and non-Tg mice was converted to cDNA, labeled with biotin and hybridized to oligonucleotide microarrays. The microarray results were confirmed by a real-time reverse transcription-polymerase chain reaction. Two hundred and fifty-one and 73 genes were up- and down-regulated, respectively by insulin in H1/siRNAinsulin-CMV/hIDE Tg mice compared to the controls. Genes encoding for physiological processes, extracellular defense response and response to biotic stimuli were significantly over-represented in the up-regulated group. Among the down-regulated transcripts, those encoding for extracellular matrix proteins were dramatically over-represented, followed by those related to monooxygenase and oxidoreductase activities. The major genes in the up-regulated categories included Egr1, Saa2, Atf3, DNAJB1 and cCL2, whereas those in the down-regulated categories were Cyp17a1, Adn, Gadd45g, Eno3 and Moxd1. These results indicate that the microarray analysis identifies several gene functional groups and individual genes that respond to a sustained reduction in the insulin levels in the livers of Tg mice. These results also suggest that microarray testing is a useful tool for the better understanding of insulin-regulated diabetes-related diseases.
- Published
- 2007
20. The Effect of Communication Contact Points in the Process of Purchase Decision-making in the Door-to-door Sales Context
- Author
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Min-Jung Sung and Jungsik Cho
- Subjects
Business - Published
- 2015
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21. [P‐024]: Modulated expressions in behavior and APP processing in transgenic mice overexpressing NSE‐controlled APPsw
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Seungwan Jee, Dae Youn Hwang, Suhae Lee, Yong Kyu Kim, Jaeho Oh, Sujin Seo, Jun-Seo Goo, Sunbo Shim, and JungSik Cho
- Subjects
Genetically modified mouse ,Psychiatry and Mental health ,Cellular and Molecular Neuroscience ,Developmental Neuroscience ,Epidemiology ,Chemistry ,Health Policy ,Neurology (clinical) ,Geriatrics and Gerontology ,Cell biology - Published
- 2005
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22. Physiological difference between dietary obesity-susceptible and obesity-resistant Sprague Dawley rats in response to moderate high fat diet
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Dong-Hwan Shin, TaeSeok Kang, Yong Kyu Kim, JungSik Cho, Youngbuhm Huh, Kabryong Chae, Jin-Hee Hwang, JuEun Lee, DaeYeon Hwang, In-Surk Jang, and ChulKyu Kim
- Subjects
Leptin ,Male ,medicine.medical_specialty ,Anabolism ,medicine.medical_treatment ,Population ,Receptors, Cell Surface ,Biology ,Acetyl-CoA Hydrolase ,General Biochemistry, Genetics and Molecular Biology ,Rats, Sprague-Dawley ,chemistry.chemical_compound ,Internal medicine ,medicine ,Animals ,Insulin ,Genetic Predisposition to Disease ,Obesity ,RNA, Messenger ,education ,Triglycerides ,DNA Primers ,education.field_of_study ,General Veterinary ,Triglyceride ,Base Sequence ,Cholesterol ,Acetyl-CoA carboxylase ,General Medicine ,Immunohistochemistry ,Diet ,Rats ,Endocrinology ,chemistry ,Hypothalamus ,Receptors, Leptin ,Animal Science and Zoology - Abstract
The primary aim of the present study was to define central and peripheral physiological differences between dietary obesity-susceptible (DOS) and obesity-resistant (DOR) outbred Sprague Dawley (SD) rats when given a moderate high fat diet containing 32.34% of energy as a fat. After a 9-week feeding period, the DOS-SD rats consumed significantly more feed (11.1%) and had higher abdominal (39.9%) and epididymal (27.5%) fat pads than the DOR-SD rats. In addition, serum leptin and insulin levels were significantly increased in the DOS-SD rats compared with those in the DOR-SD rats. However, we did not observe significant differences in serum triglyceride, cholesterol and glucose. No differences in hypothalamic OB-Ra and Rb mRNA expressions were found between the two groups. In contrast, arcuate NPY immunohistochemical expression was much higher in the DOS-SD rats than in the DOR-SD rats, though NPY expression in the supraoptic and paraventricular nuclei was not different between the two phenotypes. In peripheral tissues, the DOS-SD rats showed noticeably increased acetyl CoA carboxylase (ACC) mRNA expression in the liver, not epididymal fat. However, Western blot of peroxisomal proliferator activated factor gamma (PPAR gamma) in the liver and epididymal fat was not different between the two phenotypes of SD rats. It was concluded that different body weight phenotypes within outbred SD population responded differently to the development of dietary induced obesity via altered anabolic features in the hypothalamus and liver.
- Published
- 2003
23. Regional changes of NADPH-diaphorase and neuropeptide Y neurons in the cerebral cortex of aged Fischer 344 rats
- Author
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Won Kyu Lee, Heekyung Ahn, Jungsik Cho, and Youngbuhm Huh
- Subjects
Senescence ,Male ,medicine.medical_specialty ,Aging ,Central nervous system ,Cell Count ,Nerve Tissue Proteins ,Biology ,Somatosensory system ,Auditory cortex ,Internal medicine ,mental disorders ,medicine ,Animals ,Neuropeptide Y ,NADPH dehydrogenase ,Cerebral Cortex ,Neurons ,General Neuroscience ,NADPH Dehydrogenase ,Anatomy ,Neuropeptide Y receptor ,humanities ,Rats, Inbred F344 ,Rats ,Endocrinology ,medicine.anatomical_structure ,Cerebral cortex ,Immunohistochemistry - Abstract
This study examined the effects of aging on neuropeptide Y (NPY) and NADPH-diaphorase (NADPH-d)-positive neurons of the cerebral cortex in young (3 months) and aged (24 months) Fischer 344 rats by immunohistochemical and histochemical methods. In the aged group, the number of NPY-immunoreactive (IR)/NADPH-d-positive neurons was not significantly changed in all regions of the cerebral cortex compared to the control group. However, the number of NPY-IR/NADPH-d-negative neurons was significantly decreased in frontal association, primary motor, secondary somatosensory, insular, ectorhinal, perirhinal and auditory cortex in the aged group. In the aged rats, about 5-10% of NPY-IR/NADPH-d-positive neurons were dystrophic and scattered within the cerebral cortex. These results suggested that NPY-IR neurons that do not contain NADPH-d are affected by aging and that aging influences NPY-IR/NADPH-d-negative neurons in a region-specific pattern within the cerebral cortex of rats.
- Published
- 1998
24. A User-Centered Approach to the Application of BIM in Smart Working Environments
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Da Yeon Park, Jungsik Choi, Soyeong Ryu, and Mi Jeong Kim
- Subjects
smart working environment ,building information modeling ,usability ,user experience ,persona method ,Chemical technology ,TP1-1185 - Abstract
Considerable research has been performed on smart working environments in the architecture, engineering, and construction industry, with building information modeling considered as a critical element for implementing intelligent working systems. Although much software has been developed, a lack of understanding inhibits a user-centered approach to the application of building information modeling in architectural design offices. This study focuses on usability factors for the development of software and proposes a direction for the adoption of building information modeling in architectural design offices. This study adopts a persona method that focuses on user experience, starting with a survey conducted in two large domestic architectural offices. For developing the persona scenarios, this study provides a conceptual framework of usability, identifies user demands, and characterizes user experience. Four representative personas were developed for the representative types of users in smart working environments. The persona scenarios provide a basis that directly reflects user needs and experiences regarding the use of building information modeling software in architectural design offices. Two implications of the application of building information modeling are proposed based on the scenarios: a user-friendly working environment for smart workflows and a customized training program focusing on user experience for the use of building information modeling software.
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- 2022
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25. Development of K-BIM e-Submission prototypical system for the openBIM-based building permit framework
- Author
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Inhan Kim, Jungsik Choi, Evelyn Ai Lin Teo, and Hongwei Sun
- Subjects
building information modeling (BIM) ,industry foundation classes (IFC) ,building e-Submission system ,automated code compliance checking ,building code ,pre-checking ,Building construction ,TH1-9745 - Abstract
With the popularization of Building Information Modeling (BIM) technology, increasing numbers of countries are attempting to introduce BIM into their national building permitting processes. There are also many BIM-related research initiatives worldwide. Likewise, the Korean government has joined this trend by improving its existing e-Submission system, SEUMTER, to provide for BIM-based e-submission and automated code compliance checking. Further, the Ministry of Land, Infrastructure, and Transport in Korea has funded the Korea BIM (KBIM) building e-Submission system project. The Industry Foundation Classes (IFC) data model is an openBIM approach that has been designated as an international standard through the International Organization for Standardization. It is not dependent on specific design tools and is suitable for public works applications. Hence, this study performed a comprehensive analysis of and developed a framework for a prototypical system for an e-Submission process based on the IFC data model. Four main modules were developed to perform code checking, submission, pre-checking, and automated rule-making. A real-world project was used to verify the feasibility and effectiveness of the proposed framework. This study could increase the adoption of BIMbased building e-Submission systems by sharing effective and successful processes.
- Published
- 2020
- Full Text
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26. BIM Information Standard Framework for Model Integration and Utilization Based on openBIM
- Author
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Chanwon Jo and Jungsik Choi
- Subjects
building information modeling (BIM) ,information standard ,framework ,guide ,classification system ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
The use of Building Information Modeling (BIM) is becoming more common in the construction process, and the demand for the integrated use of BIM data is expected to continue increasing. BIM is a technology that can maximize various efficiencies by sharing facility information in an integrated manner; however, the information generated in the life cycle of the construction industry is broad, diverse, and complex. Accordingly, because BIM information is difficult to share and is often duplicated, it is not easy to obtain the effects of various BIMs. The solution to this is to create a systematic standard so that one item of information can be used in various ways, and everyone shares and uses it together. To this end, various standards (guides, classification systems, information standards, etc.) are being created; however, the interrelationships between standard elements are complex, so there is confusion and overlap between standards. This paper proposes an information standard framework for BIM to identify a systematic standard and method to effectively develop various guidelines for the standard.
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- 2021
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27. Selenium acts as an insulin-like molecule for the down-regulation of diabetic symptoms via endoplasmic reticulum stress and insulin signalling proteins in diabetes-induced non-obese diabetic mice.
- Author
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Daeyoun Hwang, Sujin Seo, Yongkyu Kim, Chuelkyu Kim, Sunbo Shim, Seungwan Jee, Suhae Lee, Mikyong Jang, Minsun Kim, Suyoun Yim, Sang-Koo Lee, Byeongcheol Kang, Insurk Jang, and Jungsik Cho
- Subjects
SELENIUM ,DIABETES ,SERUM ,GLUCOSE ,INSULIN ,PHOSPHORYLATION ,LABORATORY mice ,THERAPEUTICS - Abstract
To investigate whether selenium (Sel) treatment would impact on the onset of diabetes, we examined serum biochemical components including glucose and insulin, endoplasmic reticulum (ER) stress and insulin signalling proteins, hepatic C/EBP-homologous protein (CHOP) expression and DNA fragmentation in diabetic and nondiabetic conditions of non-obese diabetic (NOD) mice. We conclude that (i) Sel treatment induced insulin-like effects in lowering serum glucose level in Sel-treated NOD mice, (ii) Sel-treated mice had significantly decreased serum biochemical components associated with liver damage and lipid metabolism, (iii) Sel treatment led to the activation of the ER stress signal through the phosphorylation of JNK and eIF2 protein and insulin signal mechanisms through the phosphorylation of Akt and PI3 kinase, and (iv) Sel-treated mice were significantly relieved apoptosis of liver tissues indicated by DNA fragmentation assay in the diabetic NOD group. These results suggest that Sel compounds not only serve as insulin-like molecules for the downregulation of glucose level and the incidence of liver damage, but may also have the potential for the development of new drugs for the relief of diabetes by activating the ER stress and insulin signalling pathways. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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28. Development of Quality Control Requirements for Improving the Quality of Architectural Design Based on BIM
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Jungsik Choi, Sejin Lee, and Inhan Kim
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building information modeling (BIM) ,industry foundation classes (IFC) ,quality control requirements ,quality check criteria ,rule-based quality checking system ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Building information modeling (BIM) technology has been utilized increasingly in quantitative ways in the architecture, engineering, and construction disciplines. However, owing to increasing requirements for improvement in qualitative factors in BIM-based design projects, it has become necessary to develop a checking and evaluation process for BIM-based architectural design. The purpose of this study is to develop and apply BIM-based quality control requirements for improving the quality of architectural design. To achieve this, the research investigated case studies for BIM data quality control and classified quality control targets according to physical/logical quality and data quality. The quality check criteria and checklists are developed through the reconfiguration of deduced quality control targets by requirement. The research developed a rule-based quality checking system using requirements for efficient quality control based on BIM.
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- 2020
- Full Text
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29. Validation of Support for Creation of License Drawings Using Application for openBIM-Based Automatic Generation of 2D Drawings
- Author
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Inhan Kim, Yongha Lee, Choong-Hee Han, Gutaek Kim, and Jungsik Choi
- Subjects
2D drawings ,building information modeling (BIM) ,industry foundation classes (IFC) ,automatic drawing generation ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
In the preparation of drawings and documents required for a licensing process, the main problem is the duplication of work in creating design drawings and Building Information Modeling (BIM) models. To overcome this problem, BIM authoring tools provide a drawing generation function. However, it is difficult to use it in a construction project involving multiple actors using different authoring tools for each design actor. Owing to these problems, the drawing generation program, which is based the on the industry foundation classes (IFC) concept is not limited to the authoring tools used in the project, and it is intended to minimize duplication by outputting drawings in dwg and pdf formats. In this study, the IFC data structure required for generating drawings was analyzed and drawing elements on the basis of the shape and attribute information, certain drawing elements were output as 3D scenes in order to obtain detailed plan, elevation, cross-section, and structural drawings, which are required for an IFC-based licensing process. In addition, 2D drawings were generated through post-processing for obtaining drawing-level outputs. On the basis of BIM design guidelines, it was found that the information required in license drawings can be minimized, and the license licensing process can be based on a separate BIM technology. In other words, based on the licensing environment in Korea, the effectiveness of the automatic 2D drawing generation program was verified through a comparative analysis on the basis of the drawings and information required by assuming that a specific set of drawing elements were required in the existing licensing process and for BIM-based licensing. Furthermore, it was examined whether books required in the licensing process can be replaced by a parking lot plan that can be submitted through a BIM-technology-based legality review system.
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- 2020
- Full Text
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30. Development of BIM-Based Risk Rating Estimation Automation and a Design-for-Safety Review System
- Author
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Yongha Lee, Inhan Kim, and Jungsik Choi
- Subjects
building information modeling (BIM) ,design for safety (DfS) review ,hazard prevention ,risk rating estimation ,safety management ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Various laws and guidelines on designing for safety have been developed world-wide, and these were used to identify risks at construction sites in advance through qualitative and quantitative safe management. In other words, attention is being paid to safe management based on design drawings and models rather than field visits. It was predicted that the introduction of the concept of design-for-safety would minimize risk at construction sites through safe management in the design phase. This is because the efficiency and reliability of such a strategy has been demonstrated in various cases abroad. However, domestic design-for-safety suggests a very limited range of evaluation items, so there is a limit to using such strategies in construction sites. Building information modeling (BIM) technology is attracting attention in situations when safe management must also be based on design proposals. Although previous studies on the identification of falling disasters and automatic identification of hazards have been conducted, these studies only deal with a limited range of items for identifying risk items. For example, BIM-based risk extraction, which is limited to falling disasters, is only at the level of risk recognition that can be derived based on the process table, and evaluation is not made accordingly. It is difficult to assess the overall disaster risk in many of the items required for risk rating estimation. In this paper, we solve the above problems by deriving a BIM-based risk rating estimation scenario based on the disaster scenario for automating BIM-based risk rating estimation, and we developed an evaluation system using this method. The BIM-based risk rating estimation methodology was presented through BIM-based hazard extraction, evaluation of requirement information, evaluation item selection, and using the evaluation system in a design-for-safety review.
- Published
- 2020
- Full Text
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31. BIM-based Hazard Recognition and Evaluation Methodology for Automating Construction Site Risk Assessment
- Author
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Inhan Kim, Yongha Lee, and Jungsik Choi
- Subjects
building information modeling (BIM) ,hazard recognition ,risk assessment ,safety management ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
Construction sites in Korea are the locus of many disasters and work-related illnesses, and construction workers are particularly likely to be exposed to serious disasters such as falls, collapses, and burial. At domestic construction sites, the concept of Design for Safety has been adopted from abroad, and current regulations are intended to secure the personnel safety at each site. However, current government guidelines and regulations are difficult to apply in the field, mainly because they do not clearly address work issues and safety management measures. The current safety review method depends too much on the subjective experience of site workers or managers. This study analyzes the step-by-step tasks required for more automated building information modeling (BIM)-based construction site safety management. An example BIM-based assessment of one specific construction site hazard, the risk of a worker fall, is carried out. In the risk analysis stage, all of the associated hazards are identified and the attendant risks are estimated and quantified. A broader risk rating methodology is derived based on the scenarios of each possible disaster at a construction site, and the hazards are extracted by defining the relationships between each building element based on the BIM information. The result is a risk rating methodology derived from a BIM-based risk assessment.
- Published
- 2020
- Full Text
- View/download PDF
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