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New statistical results on the optical IDV data of BL Lac S5 0716+714

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Research in Astronomy and Astrophysics 2015年第3期15卷 327-332页

作者： Bogdan Dǎnilǎ Alexandru marcu Gabriela Raluca Mocanu Faculty of Physics Babes-Bolyai University Romanian Academy Astronomical Institute Astronomical Observatory Cluj-Napoca

This paper reports on the statistical behavior of the optical Intraday Variability of BL Lac S5 0716＋714. Available Intraday Variability data in the opti- cal are tested to see whether or not the magnitude is lognormally distributed. Our results consistently indicate that this is not the case. This is in agreement with a previ- ous discussion about data for the same object but in a different observational period. Simultaneously, the spectral slope of the light curves is calculated. The implications of these findings on models that describe both the location and source of Intraday Variability are presented.

关键词： radiation mechanisms non-thermal -- BL Lacertae objects individual:S5 0716+714

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罗马尼亚语版《当代中文》研究

罗马尼亚语版《当代中文》研究

作者： marcu Andreea 浙江大学

学位级别：硕士

随着中国经济的发展,中国在世界上的地位越来越重要了,所以学习汉语的外国人越来越多。由于罗马尼亚和中国的关系越来越亲密,越来越多的罗马尼亚人开始学习汉语。目前在罗马尼亚有几种汉语教材,《当代中文》的罗马尼亚语版在大学应用较... 详细信息

随着中国经济的发展,中国在世界上的地位越来越重要了,所以学习汉语的外国人越来越多。由于罗马尼亚和中国的关系越来越亲密,越来越多的罗马尼亚人开始学习汉语。目前在罗马尼亚有几种汉语教材,《当代中文》的罗马尼亚语版在大学应用较多,而且是在大学目前唯一一部罗语教材。本文主要以罗马尼亚语版(2010年修订版)汉语教材《当代中文(初级)》(吴中伟编著,由李家渔,骆东泉翻译)为分析对象,研究该教材存在的翻译问题以及其他与教材适用性方面相关的问题,例如罗马尼亚母学习者使用该教材时遇到的实际问题和使用效果。本文主要通过内容分析法和问卷调查的方法,分析罗马尼亚语版《当代中文》存在的翻译问题,以及罗马尼亚汉语学者对教材的使用体验和对《当代中文》的评价。研究发现,罗马尼亚语版《当代中文》在翻译上有很明显的问题,包括词汇与句子的准确性、翻译的含义和对照、译文语义的自然性和流畅性以及翻译中的语法错误等等,。此外对使用者的调查研究结果也为《当代中文》教材提出了一些不足及改进意见。这些研究结果对完善罗马尼亚本地汉语教材有直接的启示作用。

关键词：当代中文罗马尼亚翻译本土化

Acute myocardial infarction and extensive systemic thrombosis in thrombotic thrombocytopenic purpura: A case report and review of literature

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World Journal of Clinical Cases 2021年第27期9卷 8104-8113页

作者： Delia Lidia Salaru Cristina Andreea Adam Dragos Traian Marius marcu Ionut Valentin Simon Liviu Macovei Lucian Ambrosie Elena Chirita Radu Andy Sascau Cristian Statescu Department of Cardiology Institute of Cardiovascular Diseases“Prof.Dr.George I.M.Georgescu”Iasi 700503Romania Internal Medicine University of Medicine and Pharmacy“Grigore T.Popa IașiRomania”Iasi 700115Romania General Surgery “Sf.Spiridon”Emergency Hospital IasiIasi 700111Romania

BACKGROUND Thrombotic thrombocytopenic purpura(TTP)is a thrombotic microangiopathy characterized by the pentad of hemolytic anemia,fever,thrombocytopenia,renal failure,and neurological *** formation of microthrombi in the arterioles and capillaries of various organs is one of the main pathophysiological *** manifestations of cardiac involvement in TTP patients are *** myocardial infarction has been reported as a complication with TTP as the secondary thrombotic *** emergence as the initial thrombotic event is extremely *** SUMMARY A 49-year-old previously healthy man was admitted for fever,typical angina chest pain 3 d prior to presentation,and newly onset left lower limb *** electrocardiogram illustrated ST-elevation acute myocardial infarction of the anterolateral wall of the left *** echocardiography depicted two large thrombi at the apex of the left ventricle and moderately reduced ejection fraction(40%).Venous Doppler ultrasound showed occlusion of the left popliteal *** tests showed severe thrombocytopenia,mild hemolytic anemia,elevated D-dimers,and high troponin and creatine *** computed tomography revealed other thrombotic sites(superior mesenteric artery,posterior aortic wall,spleen and renal infarction,and ileum necrosis).He was immediately started on steroids and addressed to surgery for acute abdominal *** an initial stabilization of the hematological deficit,he went into general surgery for resection of the necrotic ileum but died soon after the intervention due to multiple organ *** Cardiac involvement in TTP patients is common,challenging and more often fatal,especially when other thrombotic complications coexist.

关键词： Thrombotic thrombocytopenic purpura Acute myocardial infarction Limb ischemia Systemic thrombosis Review Case report

Horseshoe thrombus in a patient with mechanical prosthetic mitral valve: A case report and review of literature

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World Journal of Clinical Cases 2015年第9期3卷 838-842页

作者： Sanjay Mehra Assad Movahed Carlos Espinoza Constantin B marcu Department of Cardiovascular Sciences East Carolina University

Patients with prosthetic cardiac valves are at high risk for thromboembolic complications and need life long anticoagulation with warfarin, which can be associated with variable dose requirements and fluctuating level of systemic anticoagulation and may predispose to thromboembolic and or hemorrhagic complications. Prosthetic cardiac valve thrombosis is associated with high morbidity and mortality. A high index of suspicion is essential for prompt diagnosis. Transthoracic echocardiography, and if required transesophageal echocardiography are the main diagnostic imaging modalities. Medically stable patients can be managed with thrombolytic therapy and anticoagulation, while some patients may require surgical thrombectomy or valve replacement. We present a case report of a patient with prosthetic mitral valve and an unusually large left atrial thrombus with both thromboembolic and hemorrhagic complications.

关键词： Thrombosis Anticoagulation Thrombolytic therapy Transthoracic echocardiogram Prosthetic valves Transesophageal echocardiogram

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在准静态范围的磁阻力：一种计算方法

数理译丛 1992年第2期 70-79页

作者： marcu.,M 蒋振平

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块状物料风动管道输送系统

化工矿山译丛 1990年第3期 49-51页

作者： marcu,M 周祥文

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免疫球蛋白重链转换的新观点

国外医学(分子生物学分册) 1983年第5期 284-286页

作者： marcu KB Cooper MD 尹桂山

在B淋巴细胞分化期间,免疫球蛋白(Ig)基因经历一个连续的重组过程,最后确定了所表达的Ig种类,即这种抗体是IgM,IgG,IgA等等。在这些类或同型(isotype)中,究竟哪种在某Ab(抗体)反应中占优势,取决于抗原的性质,特别是取决于B-细胞应答对T... 详细信息

在B淋巴细胞分化期间,免疫球蛋白(Ig)基因经历一个连续的重组过程,最后确定了所表达的Ig种类,即这种抗体是IgM,IgG,IgA等等。在这些类或同型(isotype)中,究竟哪种在某Ab(抗体)反应中占优势,取决于抗原的性质,特别是取决于B-细胞应答对T-细胞辅助的依赖性。在瑞典会议上,对种类转换的机制和T-细胞影响的本质

关键词：同型转换重链细胞表面 mRNA 浆细胞效应B细胞 B-淋巴细胞染色单体恒定区基因重排细胞分化免疫球蛋白

Photon energy transfer on titanium targets for laser thrusters

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High Power Laser Science and Engineering 2022年第5期10卷 1-13页

作者： A.marcu M.Stafe M.Barbuta R.Ungureanu M.Serbanescu B.Calin N.Puscas Center for Advanced Laser Technologies(CETAL) National Institute for LaserPlasma and Radiation Physics(INFLPR)Magurele 077125Romania Department of Physics University Politehnica of BucharestBucharest 060042Romania

Using two infrared pulsed lasers systems,a picosecond solid-state Nd:YAG laser with tuneable repetition rate(400 kHz-1 MHz)working in the burst mode of a multi-pulse train and a femtosecond Ti:sapphire laser amplifier with tuneable pulse duration in the range of tens of femtoseconds up to tens of picoseconds,working in single-shot mode(TEWALASS facility from CETAL-NILPRP),we have investigated the optimal laser parameters for kinetic energy transfer to a titanium target for laser-thrust *** the single-pulse regime,we controlled the power density by changing both the duration and pulse *** the multi-pulse regime,the train’s number of pulses(burst length)and the pulse energy variation were *** propagation and photon reflection-based models were used to simulate the obtained experimental *** the single-pulse regime,optimal kinetic energy transfer was obtained for power densities of about 500 times the ablation threshold corresponding to the specific laser pulse *** multi-pulse regimes,the optimal number of pulses per train increases with the train frequency and decreases with the pulse power *** ideal energy transfer efficiency resulting from our experiments and simulations is close to about 0.0015%.

关键词： photon energy transfer short pulse laser impulse laser thrusters

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