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Seasonal Variations of Solar Wind Parameters during Solar Cycles 23 and 24

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Open Journal of Applied Sciences 2022年第9期12卷 1527-1546页

作者： Somaïla Koala Yacouba Sawadogo jean louis Zerbo Laboratoire de Matériaux d’Héliophysique et Environnement (La.M.H.E) ED/ST Université Nazi BONI Bobo-Dioulasso Burkina Faso Unité de Formation et de Recherche en Sciences Exactes et Appliquées (UFR/SEA) Université Nazi BONI Bobo-Dioulasso Burkina Faso

In this paper, we analyzed diurnal and annual seasonal variations of solar wind parameters such as interplanetary magnetic field (IMF), proton density (N), solar wind speed (V) and solar wind dynamic pressure (Pdym), during the solar cycles 23 and 24. Our study shows that strong geomagnetic disturbances are observed at the equinoxes during both solar cycles. The highest proton densities are observed at solstices during both solar cycles. The greatest solar wind speeds are observed at the equinoxes of solar cycle 23 and at the solstices of solar cycle 24. The highest solar wind dynamic pressures are observed at the solstices of both solar cycles. We also observed an asymmetrical evolution of the seasonal diurnal values of the solar wind parameters during the two cycles, except for the proton density. Our investigations also highlight the fact that the seasonal diurnal values of the solar wind parameters are significant at solar cycle 23 compared to solar cycle 24 characterized by a global weak in solar plasma conditions since the deep minimum that followed the solar cycle 23 leading to an absence of a persistent polar coronal hole. The drop observed in polar field and solar winds parameters during solar cycle 24 is reproduced on seasons (solstices and equinoxes). The solar cycle 23 and 24 appear to be two magnetically opposite solar cycles regardless the time scales.

关键词： Diurnal Seasonal Solar Winds Parameters Variation Solar Cycle

绿色建筑在发展中国家实施的制约因素分析“卢旺达建筑业案例”

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绿色建筑在发展中国家实施的制约因素分析“卢旺达建筑业案例”

作者： SINGURANAYO jean louis 兰州理工大学

学位级别：硕士

绿色建筑(设计和施工)技术(GBT)在建筑行业被全球倡导,以解决可持续发展问题,但其实施仍面临挑战。实现可持续发展目标的挑战是GBT实施需要详细的调查研究。然而,在GBT的实施过程中有一些发展中国家对GBT的研究还很少,比如尼日利亚和加... 详细信息

绿色建筑(设计和施工)技术(GBT)在建筑行业被全球倡导,以解决可持续发展问题,但其实施仍面临挑战。实现可持续发展目标的挑战是GBT实施需要详细的调查研究。然而,在GBT的实施过程中有一些发展中国家对GBT的研究还很少,比如尼日利亚和加纳等。本文提到了卢旺达建筑行业的研究,旨在调查GBT在卢旺达建筑行业实施过程中遇到的重大挑战。为了实现研究目标,通过综合文献回顾,确定了26个影响因素,并对43名具有绿色建筑经验的专业人员进行了问卷调查。排名分析结果表明,其中20项因素至关重要。前三个最关键的影响因素是GBT的成本较高,缺乏政府激励措施以及缺乏融资方案(如银行参与)。比较分析表明,对于卢旺达这样的发展中国家实施GBT的最关键挑战不同于大多其他评估国家。此外,因素分析显示,20个潜在的关键因素是与政府、人、知识和信息、市场以及成本和风险5个基础因素相关。这项研究还表明,五个基础因素中最主要的是与政府有关因素,这突出了政府在促进卢旺达GBT实施方面的角色。本文通过分析GBT在发展中国家实施的挑战,增加了绿色建筑相关的理论知识,这可以帮助决策者和从业人员采取适当措施来缓解障碍,从而推动GBT的实施。

关键词：卢旺达建造业绿色建筑实践挑战可持续发展发展中国家

Catalytic Peptide Dendrimers as Artificial Proteins: Functional Selection and Optimization from Combinatorial Libraries

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复旦学报（自然科学版） 2005年第5期44卷 837-837页

作者： jean-louis Reymond University of Berne Freiestrasse 3 CH-3012 Berne Switzerland

In de novo protein design one attempts to create artificial proteins with defined structure and function from first principles, usually with the help of trial-and-error procedures that scan a large number of possible amino acid sequences. Our approach to de novo protein design is based on peptide dendrimers. Dendrimers are tree-like structures that adopt a globular or disk-shaped structure as a consequence of topology rather than folding. Our peptide dendrimers are obtained by alternating alpha-aminoacids with branching diaminoacids[1].Dendrimers containing combinations of histidine, serine and aspartate display enzyme-like catalytic properties for the hydrolysis of esters, including enantiomeric discrimination[1d]. The catalytic effect involves cooperative substrate binding and catalysis by a positive dendritic effect[1d].

关键词：缩氨酸催化作用人造蛋白质选择性基因序列

Quantum Mechanics Corrected [ed.]

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2005年

作者： jean-louis Basdevant jean Dalibard

来源：畅想之星图书光盘版（南... 评论

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乳源乳酸菌在发酵乳制品中的应用

中国乳品工业 2008年第11期36卷 41-46页

作者：陈历水马莺 jean-louis Maubois 哈尔滨工业大学哈尔滨150090 法国农业科学院法国雷恩35042

为了满足市场需求,全球乳品加工企业都在努力提高产品的多样化程度,并且希望从原料乳或以生鲜乳发酵的乳制品中找到一些潜在的发酵剂来开发新产品。针对这一情况,对乳酸菌在不同发酵乳制品中的主要作用进行了分类综述,并介绍了乳源乳酸... 详细信息

为了满足市场需求,全球乳品加工企业都在努力提高产品的多样化程度,并且希望从原料乳或以生鲜乳发酵的乳制品中找到一些潜在的发酵剂来开发新产品。针对这一情况,对乳酸菌在不同发酵乳制品中的主要作用进行了分类综述,并介绍了乳源乳酸菌在发酵乳制品的应用研究现状。

关键词：乳酸菌干酪酸乳含酒精乳饮料酸酪乳酸奶油

External and Environmental Radiation Dosimetry with Optically Stimulated Luminescent Detection Device Developed at the ***

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World Journal of Nuclear Science and Technology 2012年第1期2卷 6-15页

作者： Reinhard Boons Mark Van Iersel jean louis Genicot 不详

The laboratory of Radiation Dosimetry and Calibration of the Belgian Nuclear Research Centre (***) is using thermoluminescence dosimetry for more than thirty years for routine measurements and for R&D investigations. In 2002, it has developed an experimental device based on the optically stimulated luminescence (OSL) technique. This device is working with AL2O3:C crystals stimulated by the green line (488 nm) emitted by a 150 mW argon laser. This paper describes this device, its characteristics, some applications in space dosimetry and the R&D works initiated in this field during the next few years.

关键词： External Dosimetry OSL Optically Stimulated Dosimetry

On the Diversity of Long-Term Temperature Responses to Varying Levels of Solar Activity at Ten European Observatories

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Atmospheric and Climate Sciences 2019年第3期9卷 498-526页

作者： Vladimir Kossobokov jean-louis Le Mouel Vincent Courtillot Institute of Earthquake Prediction Theory and Mathematical Geophysics Russian Academy of Sciences Moscow Russia Geomagnetism and Paleomagnetism Institut de Physique du Globe de Paris Sorbonne Paris Cité Paris France

We analyze ten of the longest (127 to 230 year-long) time series of European daily temperatures available from five different Köppen-Geiger climate classes. We split these according to the level of solar cycle activity (H for “higher than median” and L for “lower than median”). This reveals coherent patterns in the temperature differences: when TH-TL?are stacked according to their calendar date, the daily averages from January 1 to December 31st disclose characteristic features in addition to the dominant annual seasonal wave, namely variations up to 2°C lasting for about 1.5 to 3 months. The five observatories at intermediate latitudes in a band from Oxford in the West to Prague in the East (same climate class) have very similar signatures. These similarities are most unlikely to be due to pure chance (confirmed by confidence levels in excess of 99% with the Kolmogorov-Smirnov and Kuiper nonparametric tests). The TH-TL patterns carry a regional signature, modulated by a more local response function. On the other hand, northern European observatories (St Petersburg and Arkhangelsk), those south of the Alps (Milan and Bologna), and the easternmost one in Astrakhan, corresponding to different climate classes, have different signatures. Similarly, preliminary study of long air pressure recordings confirms what emerges from the analysis of temperatures. These new observations lead us to conclude that the climate in different regions presents different responses to variations in solar activity. Moreover, the distributions of the lower, middle, and higher quartiles of the temperature and pressure indices in solar cycles with high versus low activity are significantly different, providing further robust statistical confirmation to this conclusion (confidence level higher to much higher than 99% using the Kuiper test).

关键词： Solar Variability Multi-Decadal Temperature Changes Long Temperature Series Nonparametric Hypotheses Testing Kolmogorov-Smirnov Test Kuiper Test

Modeling the Dispersion and Atmospheric Mitigation of Pollutants in the Dibamba-Douala Thermal Power Plant

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Journal of Geoscience and Environment Protection 2020年第3期8卷 102-115页

作者： Marius Tony Kibong jean Gaston Tamba louis Monkam Technologies and Applied Sciences Laboratory University Institute of Technology University of Douala Douala Cameroon

This work simulates the dispersion and atmospheric attenuation of pollutants from the Dibamba-Douala thermal power plant. The objective of this research is to study the dispersion of air pollutants and mitigate the impact of pollutants on the populations living around the power plant. The methodology used is as follows: the Gaussian model is used for the representation of the dispersion in the form of a plume, the finite difference method for digital resolution. Finally, dispersion charts are constructed which allow the heights of the chimneys to be fixed for which the concentrations of pollutants discharged comply with ambient air quality standards. The results obtained using the simulation made in the MATLAB software version 2016 show that, for a wind regime of 1.5 m/s;we have a predicted distance of 150 m at which the concentration is canceled out. Then, for the wind speed of 2 m/s;we had a predicted distance of 125 m and finally for a wind speed of 2.5 m/s;we observed the 120 m distance at which the concentration is canceled. In addition, for the same wind regimes, the attenuation of pollutants at ground level is obtained for a height of 60 m.

关键词： Modeling Atmospheric Pollution Thermal Power Plant Gaussian Model Dispersion

Modulation of monocyte subsets in infectious diseases

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World Journal of Immunology 2014年第3期4卷 185-193页

作者： Mignane B Ka Daniel Olive jean-louis Mege Inserm Unité Mixte de Recherche(UMR) 1068 Centre de Recherche en Cancérologie de Marseille13009 MarseilleFrance Department of Immunology and Infectious Diseases Aix Marseille UniversityURMITEUM63CNRS 7278IRD 198INSERM 109513005 MarseilleFrance

Monocytes are effector immune cells but a precise anal-ysis of their role in immune response has been preclud-ed by their heterogeneity. Indeed, human monocytesare composed of at least three different subsets withdifferent phenotypic characteristics and functional prop-erties, the so-called classical, intermediate and non-classical monocytes. A review of the literature showsthat these monocyte subsets are differently affectedduring viral, bacterial, parasitic and fungal *** expansion of the CD16＋ compartment （intermedi-ate and non-classical monocytes） is typically observedin the majority of infectious diseases and the increasedproportion of CD16＋ monocytes is likely related totheir activation through their direct interaction with thepathogen or the infammatory context. In contrast, thenumber of non-classical and intermediate monocytesis decreased in Q fever endocarditis, suggesting thatcomplex mechanisms govern the equilibrium among monocyte subsets. The measurement of monocyte sub-sets would be useful in better understanding of the role of monocyte activation in the pathophysiology of infec-tious diseases.

关键词： Monocytes subsets Infection Virus Bacte-ria