IS THE ANOMALOUS MICROWAVE EMISSION DUE TO THE ROTATION OF INTERSTELLAR PAHS? PLANCK RESULTS: PLANCK - AKARI PROJECT

Planck Collaboration, Planck Collaboration,Giard, M.,Berne, O.,Doi, Y.,Ishihara, D.,Joblin, Ch.,Kaneda, I.,Marshall, D.,Nakagawa, T.,Ohsawa, R.,Onaka, T.,Sakon, I.,Shibai, H.,Ysard, N. The Korean Astronomical Society 2012 天文學論叢 Vol.27 No.4

We show how the rotation emission from isolated interstellar Polycyclic Aromatic Hydrocarbons (PAHs) can explain the so-called anomalous microwave emission (AME). AME has been discovered in the last decade as microwave interstellar emission (10 to 70 GHz) that is in excess compared to the classical emission processes: thermal dust, free-free and synchrotron. The PAHs are the interstellar planar nano-carbons responsible for the near infrared emission bands in the 3 to 15 micron range. Theoretical studies show that under the physical conditions of the interstellar medium (radiation and density) the PAHs adopt supra-thermal rotation velocities, and consequently they are responsible for emission in the microwave range. The first results from the PLANCK mission unexpectedly showed that the AME is not only emitted by specific galactic interstellar clouds, but it is present throughout the galactic plane, and is particularly strong in the cold molecular gas. The comparison of theory and observations shows that the measured emission is fully consistent with rotation emission from interstellar PAHs. We draw the main lines of our PLANCK-AKARI collaborative program which intends to progress on this question by direct comparison of the near infrared (AKARI) and microwave (PLANCK) emissions of the galactic plane.

Chemical Risk Assessment Screening Tool of a Global Chemical Company

Tjoe-Nij, Evelyn,Rochin, Christophe,Berne, Nathalie,Sassi, Alessandro,Leplay, Antoine Occupational Safety and Health Research Institute 2018 Safety and health at work Vol.9 No.1

Background: This paper describes a simple-to-use and reliable screening tool called Critical Task Exposure Screening (CTES), developed by a chemical company. The tool assesses if the exposure to a chemical for a task is likely to be within acceptable levels. Methods: CTES is a Microsoft Excel tool, where the inhalation risk score is calculated by relating the exposure estimate to the corresponding occupational exposure limit (OEL) or occupational exposure band (OEB). The inhalation exposure is estimated for tasks by preassigned ART1.5 activity classes and modifying factors. Results: CTES requires few inputs. The toxicological data, including OELs, OEBs, and vapor pressure are read from a database. Once the substance is selected, the user specifies its concentration and then chooses the task description and its duration. CTES has three outputs that may trigger follow-up: (1) inhalation risk score; (2) identification of the skin hazard with the skin warnings for local and systemic adverse effects; and (3) status for carcinogenic, mutagenic, or reprotoxic effects. Conclusion: The tool provides an effective way to rapidly screen low-concern tasks, and quickly identifies certain tasks involving substances that will need further review with, nevertheless, the appropriate conservatism. This tool shows that the higher-tier ART1.5 inhalation exposure assessment model can be included effectively in a screening tool. After 2 years of worldwide extensive use within the company, CTES is well perceived by the users, including the shop floor management, and it fulfills its target of screening tool.

Chemical Risk Assessment Screening Tool of a Global Chemical Company

Evelyn Tjoe-Nij,Christophe Rochin,Nathalie Berne,Alessandro Sassi,Antoine Leplay 한국산업안전보건공단 산업안전보건연구원 2018 Safety and health at work Vol.9 No.1

Background: This paper describes a simple-to-use and reliable screening tool called Critical Task Exposure Screening (CTES), developed by a chemical company. The tool assesses if the exposure to a chemical for a task is likely to be within acceptable levels. Methods: CTES is a Microsoft Excel tool, where the inhalation risk score is calculated by relating the exposure estimate to the corresponding occupational exposure limit (OEL) or occupational exposure band (OEB). The inhalation exposure is estimated for tasks by preassigned ART1.5 activity classes and modifying factors. Results: CTES requires few inputs. The toxicological data, including OELs, OEBs, and vapor pressure are read from a database. Once the substance is selected, the user specifies its concentration and then chooses the task description and its duration. CTES has three outputs that may trigger follow-up: (1) inhalation risk score; (2) identification of the skin hazard with the skin warnings for local and systemic adverse effects; and (3) status for carcinogenic, mutagenic, or reprotoxic effects. Conclusion: The tool provides an effective way to rapidly screen low-concern tasks, and quickly identifies certain tasks involving substances that will need further review with, nevertheless, the appropriate conservatism. This tool shows that the higher-tier ART1.5 inhalation exposure assessment model can be included effectively in a screening tool. After 2 years of worldwide extensive use within the company, CTES is well perceived by the users, including the shop floor management, and it fulfills its target of screening tool.

SiRENE: A new generation of engineering simulator for real-time simulators at EDF

Pialla David,Sala Stéphanie,Morvan Yann,Dreano Lucie,Berne Denis,Bavoil Eléonore 한국원자력학회 2024 Nuclear Engineering and Technology Vol.56 No.3

For Safety Assisted Engineering works, real-time simulators have emerged as a mandatory tool among all the key actors involved in the nuclear industry (utilities, designers and safety authorities). EDF, Electricit´e de France, as the leading worldwide nuclear power plant operator, has a crucial need for efficient and updated simulation tools for training, operating and safety analysis support. This paper will present the work performed at EDF/DT to develop a new generation of engineering simulator to fulfil these tasks. The project is called SiRENE, which is the acronym of Re-hosted Engineering Simulator in French. The project has been economically challenging. Therefore, to benefit from existing tools and experience, the SiRENE project combines: - A part of the process issued from the operating fleet training full-scope simulator. - An improvement of the simulator prediction reliability with the integration of High-Fidelity models, used in Safety Analysis. These High-Fidelity models address Nuclear Steam Supply System code, with CATHARE thermalhydraulics system code and neutronics, with COCCINELLE code. - And taking advantage of the last generation and improvements of instructor station. The intensive and challenging uses of the new SiRENE engineering simulator are also discussed. The SiRENE simulator has to address different topics such as verification and validation of operating procedures, identification of safety paths, tests of I&C developments or modifications, tests on hydraulics system components (pump, valve etc.), support studies for Probabilistic Safety Analysis (PSA). etc. It also emerges that SiRENE simulator is a valuable tool for self-training of the newcomers in EDF nuclear engineering centers. As a modifiable tool and thanks to a skillful team managing the SiRENE project, specific and adapted modifications can be taken into account very quickly, in order to provide the best answers for our users’ specific issues. Finally, the SiRENE simulator, and the associated configurations, has been distributed among the different engineering centers at EDF (DT in Lyon, DIPDE in Marseille and CNEPE in Tours). This distribution highlights a strong synergy and complementarity of the different engineering institutes at EDF, working together for a safer and a more profitable operating fleet.

INVESTIGATION OF PAHs IN GALACTIC PLANETARY NEBULAE WITH THE AKARI/IRC AND THE SPITZER/IRS

Ohsawa, R.,Onaka, T.,Sakon, I.,Mori, T.I.,Yamamura, I.,Matsuura, M.,Kaneda, H.,Bernard-Salas, J.,Berne, O.,Joblin, C. The Korean Astronomical Society 2012 天文學論叢 Vol.27 No.4

Polycyclic aromatic hydrocarbons (PAHs) in Galactic planetary nebulae (PNe) are investigated by means of the unidentified infrared (UIR) bands. Continuous near- to mid-infrared spectra of PNe are obtained with the AKARI/IRC and the Spitzer/IRS. All 19 PNe in the present study show prominent dust emissions and we investigate the variation in the intensity ratios among the UIR bands. The ionization fraction and the size distribution of PAHs in PNe are derived using the UIR band ratios. We find that the ionization fraction of PAHs in PNe is around 0.0-0.6 and that small PAHs are scarce. The present result indicates a systematic trend of the $3.4{\mu}m$ aliphatic feature to become weak as the PAH ionization fraction increases.

스웨덴의 에너지와 환경

Bern Lars A. 한국에너지협의회 1989 에너지協議會報 Vol.10 No.-

New Emission Test in Europe

Bern Degen 한국자동차공학회 2015 오토저널 Vol.37 No.6

「여행의 양식」사랑을 노래한 괴테의 시와 그 생성맥락

라이츠너, 베른트 숙명여자대학교 지역학연구소 2001 지역학논집 = Research Institute of Regional Studies Vol.5 No.-

나는 빛나는 눈빛을 잃어버렸네 그 눈빛은 나의 삶을 더 이상 아름답게 할 수 없고 운명이란 것은 화해하지 않는다는 걸, 알고 있기에 어쩔 수 없이 나는 뒷걸음질 쳐버렸네 더 이상 행복이란 걸 모르게 된 나는, 삶에 필요한 모든 것을 끊기 시작했네 나에게 그녀의 눈빛보다 중요한 것은 아무것도 없기에 탐스런운 빛깔의 포도주, 식욕의 즐거움, 편안함과 수면 그리고 그 밖의 선물들과, 사교모임을 나는 멀리했고, 모든 의욕은 사라졌네 이제 나는 세상을 편안히 여행하리라 내가 필요로 하는 것은 어디서나 가질 수 있으므로, 없어서는 안 되는 사랑을 가져오리라.^1) 이시는 1807~1808년 겨울에 발표된 것으로 Goethe가 11월 11일부터 12월 18일까지 Jena에 머무는 동안에 쓰여진 것으로 추측된다

악성활액막종 : 1예보고 Report of a Case

최충신,심웅석,심웅석,김용주 대한적십자사 1976 적십자병원지 Vol.3 No.2

한국인 소아의 정상 비구경사각

김철수,윤번수,김용주 대한적십자사 1983 적십자병원지 Vol.10 No.1