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Description of Two New Thaumastodermatids (Gastrotricha, Macrodasyida) from Korea
장영천,이지민,Chang, Young-Cheon,Lee, Ji-Min,Claus Clausen The Korean Society for Integrative Biology 1998 Korean journal of biological sciences Vol.2 No.3
Two new marine gastrotrichs of the family Thaumastodermatidae are described from South Korea. Tetranchyroderma gracilium n. sp. bears pestle organs, tetrancres, and two pairs of large dorsolateral tubes. It seems most closely related to T. massiliense Swedmark, T. heterotubulatum Hummon, Todaro and Tongiorgi, and T. boreale Clausen. Thaumastoderma copiophorum n. sp. has five pairs of dorsal cirrata, the overall picture of which differs clearly from that of all known species. In the presence of accessory cirrata, it relates to T. appendiculatum Chang, Lee and Clausen.
Clausen, Thomas,Meng, Annette,Borg, Vilhem Occupational Safety and Health Research Institute 2020 Safety and health at work Vol.11 No.2
Background: The concept of social capital has its focus on cooperative relations in the workplace. This study investigates the association between social capital and sickness absence among workers in 41 work groups in the Danish dairy industry and examines the possible effects of an intervention on social capital in the workplace on sickness absence. Methods: A sample of 791 dairy workers working in 41 work groups that participated in an intervention study on social capital filled in a questionnaire on four subtypes of social capital, and social capital scores from individual participants were aggregated to the level of work groups. Sickness absence was measured at the level of work groups in company registers as the two-year average percentage of working time lost to sickness absence. Group-level associations between social capital and sickness absence were analyzed using multilevel linear regression analysis. Analyses were adjusted for age, gender, group size, and random effects at the workplace level. Results: We found statistically significant associations between social capital within work groups, social capital in relation to the immediate manager, and social capital toward the workplace as a whole on the one side and sickness absence on the other side. We found no support for any effects of the intervention on sickness absence. Conclusion: The work group level of social capital is associated with the work group level of sickness absence. However, the intervention to enhance group-level social capital had no effect on reducing sickness absence in the intervention group.
The Long-Run Stability of European Money Demand
Clausen, Volker,Kim, Jeong Ryeol 세종대학교 국제경제연구소 2000 Journal of Economic Integration Vol.15 No.3
The European Central Bank uses a monetary strategy which represents a combination of monetary targeting and direct inflation targeting. In this context, the stability of the long-run European money demand function is widely seen as a precondition for a strategy of monetary targeting. This paper investigates the aggregate demand for money in Europe including those countries representing the initial group in the European Monetary Union. First, we identify stable (in the sense of cointegrated) European money demand functions for M1 as well as for M3. Second, we investigate parameter constancy over time and do not find suggestive evidence of structural instability. Overall, the results provide empirical support for the European Central Bank to target a European monetary aggregate.
Drivers of and Barriers to Professionalization in International Sport F
Josephine Clausen 글로벌지식마케팅경영학회 2018 Journal of Global Sport Management Vol. No.
In a changing and complex environment, international sport federations (IFs) have to face new challenges. These challenges can trigger or hinder IFs’ professionalization processes. While researchers have examined organizational change and professionalization of national sport federations (NFs) and clubs, studies on IFs are rare. Considering professionalization as an important element of IFs’ change processes in recent years, the study attempts to fill this gap. The conceptual framework is based on the concepts and dynamics of organizational change, the influence of isomorphic pressures and the operationalization of a multi-level framework. Data from six case studies was analyzed by means of qualitative content analysis. Findings reveal multiple causes of IFs’ professionalization. Three particular findings are discussed: professionalization as a dynamic process with phases of acceleration that vary depending on IFs’ size; IFs’ becoming increasingly business-like through isomorphic changes; and five causes of particular relevance to IFs’ current professionalization process.
Casper Hyttel Clausen,Maria Dimaki,Sonia Buckley,Winnie Edith Svendsen 한국바이오칩학회 2011 BioChip Journal Vol.5 No.1
An investigation of the dielectric properties of polyamine buffer prepared human chromo-somes is presented in this paper. Chromosomes prepared in this buffer are only a few micrometers in size and shaped roughly like spherical discs. Dielectropho-resis was therefore chosen as the method of manipulation combined with a custom designed microfluidic system containing the required electrodes for dielec-trophoresis experiments. Our results show that although this system is presently not able to distinguish between the different chromosomes, it can provide average data for the dielectric properties of human chromosomes in polyamine buffer. These can then be used to optimize system designs for further characterization and even sorting. The experimental data from the dielectrophoretic manipulation were combined with theoretical calculations to extract a range of values for the permittivity and conductivity of human poly-amine buffer prepared chromosomes.
ALTERNATIVE PROPULSION FOR LNG SHIPS BY LOW SPEED ME-C AND ME-GI ENGINES
Niels B. Clausen 한국동력기계공학회 2006 한국동력기계공학회 학술대회 논문집 Vol.- No.-
Recently, orders have been placed for a large number of LNG carriers, and further extensive contracting is expected. This paper outlines the alternative concepts for the application of low speed engines for use on LNG carriers: i.e. the HFO burning ME engine used in combination with a reliquefaction plant and the ME-GI gas injection low speed dual fuel engine, and compares the relevant concepts for the propulsion power and electricity production machinery.
과산화수소를 이용한 가스상에서의 NO 산화에 의한 NOx의 제어
Kasper, J.,Clausen, C. A.,Cooper, C. D. 慶星大學校 環境問題硏究所 1996 環境硏報 Vol.6 No.1
NO는 과산화 수소의 열적 분해(thermal decomposition)에 의해 발생된 OH기에 의해 가스상에서 NO_2, HNO_2, HNO_3로 산화되는 것을 실험적으로 증명되며, 사용된 공정의 온도와 체류시간은 많은 종류의 연소장치에서 나타나는 하향흐름 지역(downstream zone)의 대표성을 가진다. 이 공정은 NO_x제거를 위해 배가스 처리에 직접 적용이 가능하다. 산화된 HNO_2와 HNO_3는 기존의 SO_2, HCl의 제거에 사용되는 wet/dry 스크러버에 사용 가능하므로 발전소, 그리고 다른 연소원에 광범위하게 적용될 것이다. NO의 높은 전화율은 실험적으로 증명되었으며, NO의 97% 전화율은 몰비 2.6 그리고, 75% 전화율은 몰비 1.6에서 관찰되었다. 이 공정의 상업적 적용은 주어진 NO 전화율에 대해 더 낮은 과산화수소/NO의 몰비로 사용될 것이다. 실험적으로 밝혀진 최적온도는 400~600℃사이이다. 붕산용액의 반응기 표면처리는 뚜렷한 NO의 전화를 증가시켰다. 이는 과산화수소와 OH기의 표면반응을 방지하는 것으로 믿어진다. 그러나 이론적인 H_2O_2와 NO_x의 몰비보다 높을 때는 비 생산적인 H_2O_2의 재반응이 있음을 보인다.