Probabilistic time-dependent sensitivity analysis of HPC bridge deck exposed to chlorides

Pratanu Ghosh,Petr Konečný,Petr Lehner,Paul J. Tikalsky 사단법인 한국계산역학회 2017 Computers and Concrete, An International Journal Vol.19 No.3

A robust finite element based reinforced concrete bridge deck corrosion initiation model is applied for time-dependent probabilistic sensitivity analysis. The model is focused on uncertainties in the governing parameters that include variation of high performance concrete (HPC) diffusion coefficients, concrete cover depth, surface chloride concentration, holidays in reinforcements, coatings and critical chloride threshold level in several steel reinforcements. The corrosion initiation risk is expressed in the form of probability over intended life span of the bridge deck. Conducted study shows the time-dependent sensitivity analysis to evaluate the significance of governing parameters on chloride ingress rate, various steel reinforcement protection and the corrosion initiation likelihood. Results from this probabilistic analysis provide better insight into the effect of input parameters variation on the estimate of the corrosion initiation risk for the design of concrete structures in harsh chloride environments.

The Role of the Campus Outdoor Environment on University Student Mental Health

Mallory Koning(Mallory Koning ),김준현(Jun-Hyun Kim),Fatemeh Saeidi-Rizi(Fatemeh Saeidi-Rizi ),Noah Durst(Noah Durst ) 인간식물환경학회 2022 인간식물환경학회지 Vol.25 No.3

Background and objective: The mental health and wellness of university students has been a pressing concern in recentyears in the US and is becoming an even larger issue due to the COVID-19 Pandemic. Numerous studies have supportedthe idea that the natural environment can have a positive impact on mental health, but only a few studies focus on the roleof university outdoor campus environments on student's mental health. The main purpose of this study is to investigatethe correlations between university student mental health and their campus's outdoor environment. Methods: An online survey was designed and distributed to students at Michigan State University, USA. Students wereasked questions about their overall mental well-being, as well as questions about their environmental perceptions, outdooractivity, views to nature through windows and safety concerns regarding their outdoor campus environment. Results: The major findings indicate a significant difference in mental health scores for windows in living quarters, wherestudents with living quarter windows had better mental health scores (MHS) than students without living quarter windows. This study also found a marginally significant difference in MHS for students with classroom windows. Other results of thisstudy include a significant difference in MHS for students' perception of safety on campus, outdoor work time, andperception of greenspace on campus. Conclusion: Future campus planner, landscape architects, university planners, and student counselors will use this studyto determine what kinds of outdoor spaces should be created and used to improve the well-being of students.

Measuring hull girder deformations on a 9300 TEU containership

Koning, Jos,Schiere, Marcus The Society of Naval Architects of Korea 2014 International Journal of Naval Architecture and Oc Vol.6 No.4

A 9300 TEU container carrier was equipped in 2006 with instrumentation aimed at wave induced accelerations, and motions. In 2010 the system was extended with strain sensors to include structural loads. Section loads for vertical bending could be readily obtained but the originally intended derivation of horizontal bending and torsion from the measured strains was found to be unreliable. This paper addresses an alternative approach that was adopted in the post processing of results. In particular the concept to use acceleration sensors to capture global hull deformations along the length of the hull, and the use of a data fusion procedure to obtain section loads from combined sensor data and finite element calculations. The approach is illustrated by comparison of actually measured accelerations and local strains with values obtained from the data fusion model. It is concluded that the approach is promising but in need of further validation and development. In particular the number and shapes of the modes used may not have been sufficient to represent the true deflection and thus strain distributions along the high loaded areas.

Is Economic Integration Between Developing Countries a Singular Process?

( Salif Kone ) 세종대학교 경제통합연구소 2012 Journal of Economic Integration Vol.27 No.3

This paper examines the economic integration processes among developing countries and developed nations. It looks into the possible existence of a general theory of economic integration and the reflection is carried out on three levels. The first is theoretical even normative, analyzing the concept of economic integration in various fields. The next is descriptive, which is based on the presentation of the initiatives (past and present) of economic integration. Finally, there is comparative where two main results are established. First is that the characteristics of the processes of economic integration are sufficiently flexible to reflect at the same time the processes of economic integration between developing countries and those between developed countries. Second is that economic integration is seen as a phenomenon with multiple dimensions and shapes and also as a process and the product of this process.

Economic Partnership Agreement between West Africa and the European Union in the Context of the World Trade Organization(WTO) and the Regional Integration Process

( Salif Kone ) 세종대학교 경제통합연구소 (구 세종대학교 국제경제연구소) 2010 Journal of Economic Integration Vol.25 No.1

A new cooperation Agreement has been signed between the European Union and the 77 ACP Countries in Cotonou (Benin) on June 23rd 2000. A point of this agreement is regarding a new trade cooperation between these different countries in districts (or regions) gathered and the European Union, based on a preferential reciprocal liberalisation. This agreement is intervening in the context of globalisation, the multilateral trade liberalization, the regionalization, the renewal of regional integration processes and, the multiplication of the internal conflicts in Africa. This paper ask if is the economic Partnership Agreement able to take into account the needs for development of the ACP countries in the strict frame of the region Western Africa The thesis developed herein want to demonstrate that the principles of the APE do not allow to take really the needs of development for the countries of the region Western Africa: in consideration to the context, the APE characteristics, the structural and institutional rigidities` of the economies of these area.

Intramural hematomas of the gastrointestinal system

Osman Kones,Ahmet Cem Dural,Murat Gonenc,Mehmet Karabulut,Cevher Akarsu,Ilhan Gok,M. Abdussamet Bozkurt,Mehmet Ilhan,Halil Alıs 대한외과학회 2013 Annals of Surgical Treatment and Research(ASRT) Vol.85 No.2

Purpose: Although spontaneous intramural hematomas of the gastrointestinal tract are very rare, they may be observed with the use of oral anticoagulant, though less frequently in cases of hematological malignancy and other bleeding disorders. Cases diagnosed as spontaneous intramural hematoma have been assessed in our clinic. Methods: The cases, which were diagnosed as spontaneous intramural hematoma in the gastrointestinal tract (SIHGT) following anamnesis, physical examination, biochemical, radiological and endoscopic findings from July 2008 to July 2012, have been assessed retrospectively. Results: Seven out of 13 cases were women and the mean age was 65.1 years (34 to 82 years). The most frequent complaint on admission was abdominal pain. The most frequent location of SIHGT was the ileum (n = 8). Oral anticoagulant use was the most common cause of etiology (n = 12). In 10 cases, International normalized ratio values were higher than treatment range (2 to 3, where mechanical valve replacement was 2.5 to 3.5) and mean value was 7.6 (1.70 to 23.13). While 12 cases were discharged without problems with medical treatment, one case with acute myeloid leukemia died in the intensive care unit following cerebrovascular attack. Conclusion: Spontaneus bleeding and hematomas that may arise in connection with bleeding diathesis may be fatal in cases with long-term oral anticoagulant treatment and insufficient follow-up. In management of these cases, it may be necessary to arrange conservative follow up and/or initialize low molecular weight heparin, and administer vitamin K as well as replace blood products and coagulation factors when indicated.

Measuring hull girder deformations on a 9300 TEU containership

Jos Koning,Marcus Schiere 대한조선학회 2014 International Journal of Naval Architecture and Oc Vol.6 No.4

A 9300 TEU container carrier was equipped in 2006 with instrumentation aimed at wave induced accelerations,and motions. In 2010 the system was extended with strain sensors to include structural loads. Section loadsfor vertical bending could be readily obtained but the originally intended derivation of horizontal bending and torsionfrom the measured strains was found to be unreliable. This paper addresses an alternative approach that was adopted inthe post processing of results. In particular the concept to use acceleration sensors to capture global hull deformationsalong the length of the hull, and the use of a data fusion procedure to obtain section loads from combined sensor dataand finite element calculations. The approach is illustrated by comparison of actually measured accelerations and localstrains with values obtained from the data fusion model. It is concluded that the approach is promising but in need offurther validation and development. In particular the number and shapes of the modes used may not have been sufficientto represent the true deflection and thus strain distributions along the high loaded areas

제1주제: 미국 Cble TV의 Public Access Channel과 수용자 참여

Dirk Koning 한국방송학회 1994 한국방송학회 세미나 및 보고서 Vol.- No.-

보건소 종사자의 감정노동과 직무소진이 조직유효성에 미치는 영향

권동연(Kone, Dong Youn),안재선(Ahn, Jae Sun) 한국보건간호학회 2016 韓國保健看護學會誌 Vol.30 No.3

Purpose: This study examines the relationship among emotional labor, job burnout and organizational effectiveness of public healthcare center workers. In specific, authors focus on the relationships between emotional labor and job burnout and the one between job burnout and organizational effectiveness and mediating effect of job burnout between emotional labor and organizational effectiveness. Methods: For the empirical analysis, survey was conducted of workers in the public healthcare center, and 502 final data was secured after eliminating the insufficient ones, which were used in the statistical analysis. Results: Emotive effort showed to have a positive effect on organizational effectiveness, however emotive dissonance showed to have a negative effect on organizational effectiveness. Emotive effort showed to reduce the level of all job burnouts while emotive dissonance showed to increase the level of all job burnouts. All job burnout showed to have negative effects on organizational effectiveness. Job burnout showed to have mediating effect between emotional labor and organizational effectiveness. Conclusion: Emotive efforts of emotional labor has positive impact on organizational effectiveness while emotive dissonance has negative impact on organizational effectiveness overall. Therefore, public healthcare center should try to seek for proper way to reduce job burnout of workers, because job burnout functions as mediating element between emotional labor and organizational effectiveness.

How to Define the Concept of Life as a Universal Value : Life in Lonergan’s Scale of Values

Fr Robin Koning SJ. 서강대학교 생명문화연구소 2012 생명연구 Vol.26 No.-

Bernard Lonergan proposes an integral hierarchical scale of values - vital, social, cultural, personal and religious values. Robert Doran, in developing Lonergan’s work in this area, has highlighted the pivotal role of the cultural level of the scale, mediating as it does between the personal and religious levels, on the one hand, and the vital and social levels on the other. This paper will outline Lonergan and Doran’s work on the scale of values and the role of culture within it. It will then apply this work by examining how the value of life may be understood at each level of the scale of values. In this way it will seek both to offer theoretical support for the conference’s focus on cultural issues in relation to life, and to make a direct contribution to the discussion of those issues.