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Physical Properties of Liquid Terbium Measured by Levitation Techniques

Journal of Rare Earths 2007年第6期25卷 665-669页

作者： paul-francois paradis Takehiko Ishikawa Noriyuki Koike Yuki Watanabe Japan Aerospace Exploration Agency Institute of Space and Astronautical Science ISS Science Project Office 2-1-1 Sengen Tsukuba Ibaraki 305-8505 Japan Chiba Institute of Technology Tsudanuma Narashino Chiba Japan Advanced Engineering Service Co. Ltd. Tsukuba Ibaraki 305-0032 Japan

To understand the nature and behavior of rare earth metals in their liquid phases, accurate values of their physical properties are essential. However, to measure their physical properties, the samples should be maintained in liquid phases for prolonged time, and this raises a formidable challenge. This is mainly explained by their high melting temperatures （e.g., 1629 K for Tb）, high vapor pressure, and the risk of melt contamination with a crucible or support. An electrostatic levitation furnace alleviated these difficulties and allowed the determination of density, surface tension, and viscosity of several metals above their melting temperature. Here, first, the levitation furnace facility and the noncontact diagnostic procedures were briefly discussed, followed by the explanation of their thermophysical property measurements over wide temperature ranges. The density was obtained using an ultraviolet-based imaging technique that allowed excellent illumination, even at elevated temperatures. Over the 1615 to 1880 K temperature span, the density measurements could be expressed as p（T） =7.84 × 10^3 -0.47 （T - Tm）（kg · m^-3） with Tm = 1629 K, yielding a volume expansion coefficient a（T） = 6.0 × 10^-5 （K^-1）. In addition, the surface tension and the viscosity could be determined by inducing a drop oscillation to a molten sample. Using this technique, the surface tension data could be expressed as σ（T） = 8.93 × 10^2 - 0.10 （T - Tm）（mN· m^-1） and those for viscosity as η（T） =0.583 exp [4.1 × 10^4/（RT）] （MPa·s） over the 1690 to 1980 K temperature range

关键词： levitation liquid noncontact terbium rare earths

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THE RANDOM BATCH METHOD FOR N-BODY QUANTUM DYNAMICS

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Journal of Computational Mathematics 2021年第6期39卷 897-922页

作者： francois Golse Shi Jin Thierry paul Ecole polytechnique CMLS91128 Palaiseau CedexFrance School of Mathematical Sciences Institute of Natural SciencesMOE-LSCShanghai Jiao Tong UniversityShanghai 200240China Sorbonne Universite CNRSUniversite de ParisINRIALaboratoire Jacques-Louis Lions75005 ParisFrance

This paper discusses a numerical method for computing the evolution of large interacting system of quantum *** idea of the random batch method is to replace the total interaction of each particle with the N−1 other particles by the interaction with p≪N particles chosen at random at each time step,multiplied by(N−1)/*** reduces the computational cost of computing the interaction potential per time step from O(N^(2))to O(N).For simplicity,we consider only in this work the case p=1—in other words,we assume that N is even,and that at each time step,the N particles are organized in N/2 pairs,with a random reshuffling of the pairs at the beginning of each time *** obtain a convergence estimate for the Wigner transform of the single-particle reduced density matrix of the particle system at time t that is both uniform in N>1 and independent of the Planck constant h̵.The key idea is to use a new type of distance on the set of quantum states that is reminiscent of the Wasserstein distance of exponent 1(or Monge-Kantorovich-Rubinstein distance)on the set of Borel probability measures on Rd used in the context of optimal transport.

关键词： Time-dependent Schrodinger equations Random batch method Mean-field limit Wasserstein distance

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Hepatitis C in Laos： A 7-Year Retrospective Study on 1765 Patients

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Virologica Sinica 2018年第4期33卷 295-303页

作者： Phimpha Paboriboune Thomas Vial Philavanh Sitbounlang Stephane Bertani Christian Trepo paul Deny francois-Xavier Babin Nicolas Steenkeste Pascal Pineau Eric Deharo Centre d'Infectiologie Lao-Christophe Merieux 3888 Vientiane Laos UMR 152 PHARMADEV IRD Universite de ToulouseUPS 31062 Toulouse France INSERM U1052 CNRS UMR 5286 Cancer Research Centre of Lyon 69008 Lyon France Universite Paris 13 Sorbonne Paris Cite Hopitaux Universitaires Paris Seine Saint Denis 93000 Bobigny France Fondation Merieux 69002 Lyon France INSERM U993 Institut Pasteur Unite 'Organisation Nucleaire et Oncogenese' 75015 Paris France

Hepatitis C virus （HCV） is a global health concern, notably in Southeast Asia, and in Laos the presentation of the HCV- induced liver disease is poorly known. Our objective was thus to describe a comprehensive HCV infection pattern in order to guide national health policies. A study on a group of 1765 patients formerly diagnosed by rapid test in health centres was conducted at the Centre of Infectiology Lao Christophe Merieux in Vientiane. The demographic information of patients, their infection status （viral load： VL）, liver function （aminotransferases） and treatments were analysed. Results showed that gender distribution of infected people was balanced; with median ages of 53.8 for men and 51.6 years for women （13-86 years）. The majority of patients （72%） were confirmed positive （VL 〉 50 IU/mL） and 28% of them had high VL （〉 61oglo）. About 23% of patients had level of aminotransferases indicative of liver damage （〉 40 IU/mL）; but less than 20% of patients received treatment. Patients rarely received a second sampling or medical imaging. The survey also showed that cycloferon, pegylated interferon and ribavirin were the drugs prescribed preferentially by the medical staff, without following any international recommendations schemes. In conclusion, we recommend that a population screening policy and better management of patients should be urgently implemented in the country, respecting official guidelines. However, the cost of biological analysis and treatment are significant barriers that must be removed. Public health resolutions should be immediately enforced in the perspective of meeting the WHO HCV elimination deadline by 2030.

关键词： Hepatitis C virus (HCV) HCV incidence Antiviral agents Laos

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Morphology Change of Electrodeposited Calcium Phosphate Coating on Ti6Al4V Substrate Under High Magnetic Field

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Journal of Iron and Steel Research International 2012年第S2期19卷 1162-1165页

作者： DALTIN Anne-Lise BAUDART Patrick DEBRAY francois CHOPART Jean-paul LISM URCAB.P.103951687 Reims Cedex 2France LNCMI-CNRS-UJF-UPS-INSA B.P.16638042 Grenoble Cedex 9France

The present study reports on the growth of calcium phosphate coatings on Ti6Al4V substrate by electrodeposition under high magnetic *** electrodeposition is conducted by potentiostatic method on horizontal electrode whose roughness was modified to reach a value of 3μ*** coatings are obtained from an electrolyte containing calcium nitrate as the Ca^(2+) source and ammonium phosphate as the P source with a Ca/P ratio equal to *** LNCMI high field continuous magnet in a 170 mm bore with homogeneity of 600.10~6 in I cm^3 has been *** magnetic field with a magnitude up to 12 T is applied perpendicularly to the electrode *** surface morphology and chemical composition of the obtained coatings were characterized by 3D digital microscope and scanning electron microscopy associated with X-ray microanalysis(SEM-EDX).The phase composition was analyzed by X-Ray *** presence of several crystalline phases comprising octacalcium phosphate and hydroxyapatite is obtained and magnetic field seems to change the relative importance of these *** coating morphology changes from belt shape crystallites to needle shape crystallites with high magnetic field superimposition without important modification of Ca/P ratio in the *** the other hand formation of volcano-like structures due to the presence of hydrogen bubbles during deposition is considerably reduced in the presence of magnetic field.

关键词： biomaterials calcium phosphates electrodeposition magnetic field magnetoelectrolysis MHD effect

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Computation of Shock Profiles in Radiative Hydrodynamics

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Communications in Computational Physics 2009年第10期6卷 1118-1136页

作者： Jean-francois Coulombel pauline Lafitte CNRS Laboratoire Paul Painleve and Project Team SIMPAF INRIA FutursUniversite Lille 1Cite Scientifique59655 VILLENEUVE D’ASCQ CedexFrance Laboratoire paul Painleve and Project Team SIMPAF INRIA Futurs Universite Lille 1Cite Scientifique59655 VILLENEUVE D’ASCQ CedexFrance

This article is devoted to the construction of a numerical scheme to solve the equations of radiative *** use this numerical procedure to compute shock profiles and illustrate some earlier theoretical results about their smoothness and monotonicity *** first consider a scalar toy model,then we extend our analysis to a more realistic system for the radiative hydrodynamics that couples the Euler equations and an elliptic equation.

关键词： Radiative transfer shock profiles Euler equations numerical profiles

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X-ray microscopic investigation of molecular orientation in a hole carrier thin film for organic solar cells

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Nano Research 2018年第5期11卷 2771-2782页

作者： Quentin Arnoux Benjamin Watts Sufal Swaraj francois Rochet Ludovic Tortech Laboratoire de Chimie Physique Matiere et Rayonnement (LCPMR) UMR 7614 Sorbonne Universites UPMC Univ Paris 06 Paris F-75005 France Institut Parisien de Chimie Moleculaire (IPCM) UMR 8232 Sorbonne Universites UPMC Univ Paris 06 Paris F-75005 France Laboratoire d'Innovation en Chimie des Surfaces et Nanosciences (LICSEN) NIMBE UMR 3685 CEA Saday Gif-sur-Yvette F-91191 France paul Scherrer Institute Villigen Psi 5232 Switzerland Synchrotron SOLEIL L'Orme des Merisiers Saint-Aubin BP 48 Gif-sur-Yvette F-91192 France

As dipyranylidenes are excellent hole carriers, applications in organic solar cells or organic light emitting diode are envisaged. In the present study, we investigate the morphology of 2,2＇,6,6＇-tetraphenyl-4,4＇-dipyranylidene （DIPO-Ph4） deposited under vacuum on a silicon nitride （Si3N4） substrate, a paradigmatic system for the study of molecular crystal/inorganic substrate interfaces. Samples with various coating ratios and different thermal treatments were prepared. The films were characterized by atomic force microscopy and scanning transmission X-ray microscopy to gain insight into material growth. The results show a change in orientation at a molecular level depending upon the evaporation conditions. We are now able to tailor an organic layer with a specific molecular orientation and a specific electronic behavior.

关键词： organic solar cells scanning transmission X-ray microscopy molecular orientation inorganic/organic interface

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Comparison of airway resistance measurements by the forced oscillation technique and the interrupter technique for detecting chronic obstructive pulmonary disease in elderly patients

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Chinese Medical Journal 2005年第22期118卷 1921-1924页

作者： GUO Yan-fei SUN Tie-ying francois Herrmann Jean-paul Janssens Division of Pulmonary Medicine Beijing Hospital Beijing 100730China Department of Rehabilitation and Geriatrics Geneva University Hospital Geneva Switzerland Division of Pulmonary Medicine Geneva University HospitalGeneva Switzerland

Rulmonary function tests provide an objective means to verify ventilatory dysfunction and to estimate its severity in respiratory disorders. Measurement of forced expiratory volume in 1 second （FEV1） and forced vital capacity （FVC） is considered to be the basic tests for the assessment of airway obstruction. Although they are useful diagnostically and prognostically, the results of FEV1 and FVC are strongly dependent on the cooperation of the patient. Lack of collaboration is particularly present in elderly patients because of mood alterations, fatigability or cognitive impairment. The forced oscillation technique （FOT） and the interrupter resistance technique are the two methods of measuring respiratory resistance during tidal breathing, they are of special interest because both of them are noninvasive, requires minimal cooperation, takes little time and can be easily repeated, especially in children and elderly subjects who cannot accomplish forced expiratory maneuvers in a reproducible manner.

关键词： forced oscillation technique· interrupter technique·chronic obstructive pulmonary disease

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西欧电力发展回顾与展望

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中国电力 2017年第7期50卷 28-32,37页

作者： Jean-paul BOUTTES francois DASSA 周苏燕(编译) 法国电力集团巴黎75008 不详

20年前,欧洲位于能源和电力行业的前沿。在20世纪90年代,电力充足,价格合理,欧洲成为大型工业企业的所在地,这些企业通常都是各行业的领导者和世界级的电力企业。然而今天的欧洲正在失去这一优势。与其他主要竞争国家相比,欧洲现在的电... 详细信息

20年前,欧洲位于能源和电力行业的前沿。在20世纪90年代,电力充足,价格合理,欧洲成为大型工业企业的所在地,这些企业通常都是各行业的领导者和世界级的电力企业。然而今天的欧洲正在失去这一优势。与其他主要竞争国家相比,欧洲现在的电力成本更高,工业组织规模正在缩小,其电力企业也正面临困难。为何会产生这样的反转?自20世纪90年代起,建立欧洲电力市场时的"自下而上"的方法被"自上而下"的逻辑所取代。一个单一模式被应用于所有国家,欧盟委员会利用竞争与环境的手段来解决电力议题。过去20年来,在抽象及缺乏系统化的观念指导下,欧洲在碳排放、竞争力以及工业发展方面取得的成效非常令人失望。通过回顾西欧电力史,不仅能够了解这种变迁,并且能够为未来提供经验反馈。

关键词：欧洲电力史技术进步电力体制展望

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Follicle-stimulating hormone(FSH)levels prior to prostatectomy are not related to long-term oncologic or cardiovascular outcomes for men with prostate cancer

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Asian Journal of Andrology 2022年第1期24卷 21-25页

作者： Kassim Kourbanhoussen France-Hélène Joncas Christopher JD Wallis Hélène Hovington francois Dagenais Yves Fradet Chantal Guillemette Louis Lacombe paul Toren Department of Surgery Faculty of MedicineUniversitéLavalCHU de Québec Research CenterOncology DivisionQuebec City G1R3S1Canada Department of Urology Vanderbilt University Medical CenterNashvilleTN 37232USA Institut Universitaire Cardiologie et Pneumologie de Québec Quebec City G1V 4G5Canada Faculty of Pharmacy UniversitéLavalCHU de Québec Research CenterQuebec City G1V 4G2Canada

Prior research suggests a link between circulating levels of follicle-stimulating hormone(FSH)and prostate cancer *** levels may also explain some of the observed differences in cardiovascular events among men treated with gonadotropin-releasing hormone(GnRH)antagonists compared to GnRH *** study evaluates the association between preoperative FSH and long-term cardiovascular and oncologic outcomes in a cohort of men with long follow-up after radical *** performed a cohort study utilizing an institutional biobank with annotated clinical *** levels were measured from cryopreserved plasma and compared with sex steroids previously measured from the same *** in oncologic outcomes between tertiles of FSH levels were compared using adjusted cox regression *** adverse cardiovascular events(MACE)were similarly assessed using hospital admission diagnostic codes.A total of 492 patients were included,with a median follow-up of 13.1(interquartile range:8.9–15.9)*** sulfate(DHEA-S)levels,but not other androgens,negatively correlated with FSH levels on linear regression analysis(P=0.03).There was no association between FSH tertile and outcomes of biochemical recurrence,time to castrate-resistant prostate cancer,or time to *** were identified in 50 patients(10.2%),with a mean time to first event of 8.8 *** association with FSH tertile and occurrence of MACE was *** results do not suggest that preoperative FSH levels are significantly associated with oncologic outcomes among prostate cancer patients treated with radical prostatectomy,nor do these levels appear to be predictors of long-term cardiovascular risk.

关键词： cardiovascular events follicle-stimulating hormone prostate cancer recurrence

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Effect of Mineral Fertilization on African Eggplant （Solanum spp.） Productivity in Cote d＇lvoire

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Journal of Agricultural Science and Technology(B) 2016年第3期6卷 188-195页

作者： Lassina Fondio Mako francois De paul N'Gbesso Noupe Diakaria Coulibaly Vegetables and Proteagineous Crops Research Programme Food Crops Research Station National Agricultural Research Centre (CNRA) Bouakd 01 BP 633 Cote d'Ivoire

Three African eggplant （Solanum spp.） varieties were assessed in six mineral manures doses T ＋ 1/2T, T ＋ 1/4T, T, T - 1/4T, T - 1/2T and without fertilizer, with reference treatment T = 300 kg/ha of NPK 10-18-18 applied before transplanting ＋ a mixture of 100 kg/ha of urea and 200 kg/ha of potassium sulphate at 30, 60 and 90 d after transplanting, to establish fertilization protocol for their cultivation. The experiment was laid out in split-plot design with three replications with varieties constituting the main factor and the fertilizer doses as secondary factor. The main observed parameters were the number of days to 50% flowering, the fruit number and weight per plant, individual fruit weight and fruit yields. As results, the interaction between varieties and fertilizer doses was significantly different only for the number of days to 50% of flowering （P = 0.0078） and the fruit number per plant （P = 0.0001）, while any significant difference was observed for individual fruit weight （P = 0.64）, fruit weight per plant （P = 0.74） and fruit yields （P = 0.74）. The difference among the fertilizers treatments was significant for the number of days to flowering, number of fruits per plant, fruit weight per plant and fruit yield for Aub33K/06Gn and Aub55N/10K, whereas any significant difference was observed for these parameters concerning Aub21N/06Du. Whatever the variety, there was not any significant difference among the fertilizers treatments for the individual fruit weight. For Aub33K/06Gn and Aub55N/10K cultivation, the fertilizers doses T - 1/4T and T - 1/2T are suggested, respectively, while a specific study is proposed for Aub21N/06Du. As perspective, economic studies are proposed to confirm the above suggested choices of fertilizers rates.

关键词： African eggplant fertilization protocol economic analysis.

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