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INTERBALL-2卫星MEMO实验观测结果的初步分析

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电波科学学报 1998年第4期13卷 412-418页

作者：赵正予 F.Lefeuvre J.Y.Brochot a.masson 武汉大学空间物理系 LPCE/CNRSORLEANSCedex245072France

利用INTERBALL－2卫星上多分量波测量实验（MEMO）在ELF／VLF／LF三个频段进行的高分辨率等离子体波观测结果，通过事件分析，给出了所观测到事件的波传播特性的枯值。结果表明：对于极区千米波辐射（AKR），R－X模式和L－O模式可以同... 详细信息

利用INTERBALL－2卫星上多分量波测量实验（MEMO）在ELF／VLF／LF三个频段进行的高分辨率等离子体波观测结果，通过事件分析，给出了所观测到事件的波传播特性的枯值。结果表明：对于极区千米波辐射（AKR），R－X模式和L－O模式可以同时发生。前者在低频段，后者则发生在频率高端，两者传播是在准平行于地磁场方向的波法线方向上。VLF嘶声发射表明主要是哨声模式，但其它模式也存在。利用波特性分析方法，局域等离子体频率的低频截止L＝0得到精确估值。

关键词： INTERBALL-2 卫星 MEMO实验波传播特性

Comparison of Essential Oil Composition,Phenolic Compound and Biological Activities of Salvia microphylla and Teucrium polium(Lamiaceae)

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Journal of Renewable Materials 2022年第6期10卷 1607-1621页

作者： Ayda Khadhri Chedia Aouadhi Eric masson Antonio Pizzi Plant Soil and Environment Interactions LaboratoryFaculty of SciencesUniversity of El-Manar IITunisTunisia Bacteriology and Biotechnology Development Groups Epidemiology Laboratory and Veterinary MicrobiologyPasteur Institute of TunisUniversity of El-Manar IITunisTunisia CRITTBois EpinalFrance LERMAB University of LorraineEpinalFrance Department of Physics King Abdulaziz UniversityJeddahSaudi Arabia

Salvia microphylla and Teucrium polium are medicinal and aromatic plants with ethnobotanical *** present study was conducted to investigate the chemical composition of Salvia microphylla and Teucrium polium essential oils,the secondary metabolites,and the biological activities of their infusion and methanolic(MeOH)*** oils were extracted by hydrodistillation from shoots Salvia microphylla and Teucrium *** content,antioxidant and antimicrobial activities were *** chromatography-mass spectrometry(GCMS)results showed the presence of significant qualitative and quantitative variations for the composition of the both essential oils(EO).Salvia microphylla EO were most complex and present 70 compounds with the major components wereβ-caryophyllene(13.32%),1,8 cineole(11.25%),Cis p-Menthane-3-one(10.74%),andβ-Selinenol(9.71%).Where in the Teucrium polium EO,45 compounds were identified with the important components areβ-cadinene(10%),β-citronellol(8.5%),Carvacrol(7.63%),and Eugenol(7.15%).Obtained results showed that both plant are very rich in secondary *** isolated from Salvia microphylla presented the highest contents in the phenolic compound than extracted from Teucrium *** antioxidant activity data demonstrated that all extracts showed strong antioxidant and radical scavenging *** oil and methanol extracts presented a potential for antimicrobial activities against all tested *** obtained results highlight the potential use of Salvia microphylla and Teucrium polium as possible natural antioxidant substances and sources of bioactive molecules.

关键词： Salvia microphylla Teucrium polium phenolic compounds antioxidant antimicrobial activity essential oil

Influence of random uncertainties of anisotropic fibrous model parameters on arterial pressure estimation

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Applied Mathematics and Mechanics(English Edition) 2013年第5期34卷 529-540页

作者： A.EDDHAHAK-OUNI I.masson F.MOHAND-KACI M.ZIDI Arts et Mtiers ParisTech(ENSAM-ESTP/IRC) Institut de Recherche en ConstructibilitUniversit Paris-Est Crteil Centre de Recherches Chirurgicales Facult de MdecineUniversit Paris-Est Crteil

This paper deals with a stochastic approach based on the principle of the maximum entropy to investigate the effect of the parameter random uncertainties on the arterial pressure. Motivated by a hyperelastic, anisotropic, and incompressible constitutive law with fiber families, the uncertain parameters describing the mechanical behavior are considered. Based on the available information, the probability density functions are attributed to every random variable to describe the dispersion of the model parameters. Numerous realizations are carried out, and the corresponding arterial pressure results are compared with the human non-invasive clinical data recorded over a mean cardiac cycle. Furthermore, the Monte Carlo simulations are performed, the convergence of the probabilistic model is proven. The different realizations are useful to define a reliable confidence region, in which the probability to have a realization is equM to 95%. It is shown through the obtained results that the error in the estimation of the arterial pressure can reach 35% when the estimation of the model parameters is subjected to an uncertainty ratio of 5%. Finally, a sensitivity analysis is performed to identify the constitutive law relevant parameters for better understanding and characterization of the arterial wall mechanical behaviors.

关键词： arterial pressure non-invasive clinical data hyperelasticity anisotropy random confidence region

Current view and perspectives in amyotrophic lateral sclerosis

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Neural Regeneration Research 2017年第2期12卷 181-184页

作者： Stéphane Mathis Philippe Couratier Adrien Julian Philippe Corcia Gwendal Le masson Department of Neurology Neuro-Muscular Unit and ALS Center CHU de Bordeaux (groupe hospitalier Pellegrin) Bordeaux cedex France Department of Neurology ALS Center Centre de competence SLA-federation Tours-Limoges CHU de Limoges Limoges France Department of Neurology CHU Poitiers University of Poitiers Poitiers France Department of Neurology ALS Center Centre de competence SLA-federation Tours-Limoges CHU de Tours Tours cedex 9 France

Amyotrophic lateral sclerosis（ALS）, identified as a distinct clinical entity by Charcot since the end of the nineteenth century, is a devastating and fatal neurodegenerative disorder that affects motor neurons in the brain, brainstem and spinal cord. Survival of patients with ALS is associated with several factors such as clinical phenotype, age at onset, gender, early presence of respiratory failure, weight loss and treatment with Riluzole（the only disease-modifying drug approved for this disease）. Nowadays, there is still no curative treatment for ALS： palliative care and symptomatic treatment are therefore essential components in the management of these patients. Nevertheless, the scientific knowledge in the field of ALS motor neuron degeneration is growing, with the prospect of new treatments. Based on this physiopathological knowledge, several new therapeutic targets are being studied, involving various mechanisms such as excitotoxicity, neuroinflammation, mitochondrial dysfunction, oxidative stress, RNA metabolism and other attractive concepts. Moreover, it is also important to identify reliable biomarkers that will be essential components for future therapeutic development and study design in ALS. In this review, we present the main recent advances and promising therapeutics and biomarkers in the field of ALS.

关键词： amyotrophic lateral sclerosis Charcot biomarkers research motor neuron neurodegeneration

Identification of Secondary Metabolites in Tunisian Tilia platyphyllos *** MALDI-TOF and GC-MS

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Journal of Renewable Materials 2024年第4期12卷 827-842页

作者： Ayda Khadhri Mohamed Mendili Marwa Bannour-Scharinger Eric masson Antonio Pizzi University of El-Manar II Faculty of SciencesPlantSoilEnvironment Interactions LaboratoryCampus AcademiaTunis2092Tunisia LERMAB University of Lorraine27 Rue Philippe SeguinEpinal88000France

This study is the first to evaluate the phytochemical content and biological properties of Tunisian *** Scop.A total of 23 compounds of essential oils were identified by gas chromatography-mass spectrometry(GC-MS)analysis of bracts and fruit *** results show that oxygenated monoterpenes were the dominant class of essential *** phenolic composition was investigated by matrix-assisted laser desorption/ionizationtime of flight(MALDI-TOF).The analysis showed that the chemical profiles of the ethanolic extracts of bracts and fruits are substantially *** highest polyphenol content was found in the ethanolic extracts of the fruits(7.65 mg gallic acid equivalents(GAE).g−1 on dry weight(DW).As for the antioxidant capacity,it was recorded in the essential oils of the fruits(IC_(50)=0.91 ***^(−1)).The results obtained showed that the antioxidant activity of the fruit essential oil was higher than that of the ethanol *** fruit essential oil was also found to have the highest reducing power(IC_(50)=0.67 ***^(−1)).In terms of iron-chelating power,fruit essential oil has the highest chelating power(IC_(50)=2.03 ***^(−1)).Compared to the ethanolic extract,the essential oil had the maximum antioxidant *** enzymatic activity of acetylcholinesterase(AChE)inhibition of the essential oil from *** bracts had the most potent inhibitory effect(IC_(50)=0.77 ***^(−1)),followed by the essential oil from the fruits(IC_(50)=0.95 ***^(−1)).The results suggest that *** can be used as a potential source of naturally occurring bioactive compounds and antioxidants.

关键词： T.platyphyllos antioxidant activity acetylcholinesterase inhibition essential oil MALDI-TOF GC-MS

Biodegradable PMMA coated Zn–Mg alloy with bimodal grain structure for orthopedic applications-A promising alternative

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Bioactive Materials 2024年第9期39卷 479-491页

作者： Alia ADiaa Nahed El-Mahallawy Madiha Shoeib Flavien Mouillard Tom Fert′e Patrick masson Adele Carrad`o Design and Production Engineering Department Faculty of EngineeringAin Shams UniversityCairo11517Egypt Department of Design and Production Engineering Faculty of Engineering and Materials ScienceGerman University in CairoCairo11835Egypt Central Metallurgical Research and Development Institute El TebbinCairo11722Egypt Institut de Physique et Chimie des Mat′eriaux de Strasbourg IPCMSUMR 7504 CNRSUniversit′e de Strasbourg67000StrasbourgFrance

The study examines the impact of microstructure and polymethyl methacrylate (PMMA) grafting on the degradability of Zn–Mg alloys. The mechanical properties ofa Zn alloy containing 0.68 wt% Mg and extruded at 200 ◦C are enhanced for degradable load-bearing applications, addressing a crucial need in the field. The materialexhibits a bimodal grain size distribution that is random texture, consisting of secondary phases, grains, and sub-grains. With an elongation to failure of 16 %, theyield and ultimate tensile strengths are 325.9 and 414.5 MPa, respectively, and the compressive yield strength is 450.5 *** “grafting-from” method was used to coat a few micrometers thick of PMMA on both bulk and scaffold Zn alloys to mitigate the corrosion rate. The last one is aporous structure, with a porosity of 65.8 %, considered as in the first approach of an orthopedic implant. After being immersed for 720 h, the PMMA-grafted bulkalloy’s corrosion rate decreased from 0.43 to 0.25 mm/y. Similarly, the scaffold alloy’s corrosion rate reduced from 1.24 to 0.49 mm/y. These results indicate that themethod employed could be used for future orthopedic applications.

关键词： alloy corrosion grain

Biliary tract reconstruction using jejunal tube:an experimental study in dogs

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Hepatobiliary & Pancreatic Diseases International 2009年第2期8卷 179-185页

作者： Eliane Anrain Trentini Eduardo Crema Juan Carlos Llanos Mauro masson Lerco Luiz Alberto Magna Luiz Sergio Leonardi State University of Campinas Faculty of Medical SciencesDepartment of Surgery Federal University of Triangulo Mineiro So Paulo State University "Júlio de Mesquita Filho" Faculty of Medicine of BotucatuDepartment of Surgery and Orthopedics

BACKGROUND:To physiologically reconstruct the biliary tract,Crema et al suggested the application of the Monti principle to the biliary tract,already used in humans for the urinary *** this technique,a jejunal segment is transversely *** study aimed to evaluate the efficacy of jejunal tube interposition between the common bile duct and duodenum in ***:Thirteen dogs underwent a laparoscopic common bile duct ligature,followed by a biliodigestive connection by jejunal tube interposition after one *** levels of glutamic-pyruvic and glutamic-oxalacetic transaminases,total bilirubins,alkaline phosphatase and gamma-glutamyltransferase were assessed before surgery and thereafter weekly until euthanasia,which was performed 6 weeks after biliodigestive ***:Data on 9 dogs were analyzed *** dogs presented with obstructive jaundice after common bile duct ligature,as confirmed by biochemical *** showed a statistically significant reduction in cholestasis after biliodigestive connection by jejunal tube interposition and were healthy until the end of the ***:A statistically significant reduction was seen in total bilirubin and canalicular enzymes(alkaline phosphatase and gamma-glutamyltransferase)in the 9 dogs 6 weeks after biliodigestive connetion by jejunal tube interposition.

关键词： biliary tract surgical procedures monti principle obstructive jaundice

Engine-Out Takeoff Path Optimization for Large Civil Aircraft

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Journal of Mechanics Engineering and Automation 2013年第6期3卷 352-361页

作者： Bertrand masson Michael Bain John Page Computer Science and Engineering University of NSW Sydney 2052 Australia Mechanical Engineering University of NSW Sydney 2052 Australia

Maximum regulated takeoff weights and hence payloads of large commercial jets are limited by government regulations which take into account local airport conditions as well as a variety of safety factors. One of the challenging conditions that must be met is linked to a minimum obstacle clearance in the unlikely event of an engine failure on the runway at the worst possible time. This requirement becomes an overriding factor for airports surrounded by challenging terrain, and therefore a well defined takeoff path out of these airports has the potential to transform a financially unsustainable operation into a commercially viable one. The research described in this paper represents an ongoing attempt to resolve this important problem and makes use of recent advances in robot path planning techniques.

关键词： Takeoff RNP (required navigation performance) large aircraft engine out procedure path planning.

Effect of Carbonation on Microbiologic Parameters of Refrigerated Bovine Raw Milk

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Journal of Food Science and Engineering 2013年第10期3卷 557-563页

作者： Marianne Ayumi Shirai Maria Lucia.masson Department of Food Technology and Engineering Universidade Tecnol6gica Federal do Parancl Via Rosalina Maria dos SantosCampo Mour6o 87031-899 Brazil Department of Chemical Engineering Universidade Federal do Parana Curitiba 81531-980 Brazil

This study evaluated the effect of carbon dioxide addition on microbiological quality during refrigerated storage of raw milk collected in Curitiba city, Brazil. A three factor-two level full factorial design was used to investigate the effect of the pH （5.8-6.4）, storage time （0-10 days） and storage temperature （5-10 ℃）, on the responses, namely, mesophiles, psychrotrophs, lipolytic psychrotrophs and proteolytic psychrotrophs counts. Results showed that increase in pH and storage time had significant effect on the microbial count. No significant effect of storage temperature was observed for all the microorganisms studied. All responses were well predicted by selected mathematical models, as denoted by coefficient of determination above 0.95.

关键词： Carbon dioxide microbiology shelf life bovine raw milk storage.