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Artykuły w czasopismach na temat "Produits chimiques – Conception"
Mansour, Hedi Ben, Oualid Boughzala, dorra Dridi, Daniel Barillier, Leila Chekir-Ghedira i Ridha Mosrati. "Les colorants textiles sources de contamination de l’eau : CRIBLAGE de la toxicité et des méthodes de traitement". Revue des sciences de l’eau 24, nr 3 (28.11.2011): 209–38. http://dx.doi.org/10.7202/1006453ar.
Pełny tekst źródłaJacyk, William R., Ellen Tabisz, Mark Badger i Don Fuchs. "Chemical Dependency in the Elderly: Identification Phase". Canadian Journal on Aging / La Revue canadienne du vieillissement 10, nr 1 (1991): 10–17. http://dx.doi.org/10.1017/s0714980800007212.
Pełny tekst źródłaDAABOUL, Joanna, Julien LE DUIGOU, Diana PENCIUC i Benoit EYNARD. "Aide à la décision pour la conception d’une chaine logistique inverse pour l’aluminium". Revue Française de Gestion Industrielle 33, nr 1 (1.03.2014): 9–31. http://dx.doi.org/10.53102/2014.33.01.716.
Pełny tekst źródłaSANOGO, Rokia, Daouda DEMBELE, Sékou DOUMBIA, Aichata B. A. MARIKO i Mohamed Yacine FOFANA. "De la recherche à la production industrielle des produits de santé (Présentations d'expériences réussies) Expérience n°1 : Médicaments Traditionnels Améliorés (MTA) sous forme de pommade au Mali." Journal Africain de Technologie Pharmaceutique et Biopharmacie (JATPB) 2, nr 3 (20.12.2023). http://dx.doi.org/10.57220/jatpb.v2i3.172.
Pełny tekst źródłaRozprawy doktorskie na temat "Produits chimiques – Conception"
Gallet, Sébastien. "Conception, synthèse et évaluation pharmacologique de thiadiazépines et oxathiazépines potentiellement anticancéreuses". Lille 2, 2003. http://www.theses.fr/2003LIL2P002.
Pełny tekst źródłaDiyani, Samira. "Elaboration d'un sel industriel : Le chlorure de potassium conception et mise au point d'un nouveau procédé de purification". Mulhouse, 1997. http://www.theses.fr/1997MULH0480.
Pełny tekst źródłaRivera, Gil Jose Luis. "A system approach to support a methodology for the design of formulated cosmetic products in the context of companies". Electronic Thesis or Diss., Université de Lorraine, 2022. http://docnum.univ-lorraine.fr/ulprive/DDOC_T_2022_0268_RIVERA_GIL.pdf.
Pełny tekst źródłaManaging a new chemical product design and development project is a complex task at different levels. In addition to the technical challenges of the formulation and the definition of process conditions, design teams should also consider the requirements of the organization where the product design is performed. Therefore, the organizational dimension and its importance in chemical product design are explored in this research. Through a bibliometric literature review, it was found that chemical product design methodologies integrating the organizational context have not been thoroughly analyzed and are highly required. In this research, through a systemic analysis based on information collected in semi-structured interviews with design experts of the cosmetic sector, the characteristics of the organizational context and its effects on the product design process of that sector were studied. Additionally, information captured during those interviews was formalized in an expert knowledge base of recommendations to support the cosmetic product design process. A tool to adapt those recommendations to the design process of specific companies was proposed. The tool is applied through collaborative workshops which enable the active participation of the design team in the evaluation of the design process in order to select and implement the most suitable recommendations. Finally, the tool is applied in a real organization showing how it can be used to evaluate and improve a real design process. In that case it was found that the tool proposes adapted improvement solutions aligned to the company's value concepts, where the design team has the role of evaluator and builder of its own design methodology
Mertens, Johann. "Conception d'un microlevier et analyse de sa réactivité avec un gaz : application à la réalisation d'un capteur de détection de florure d'hydrogène". Dijon, 2003. http://www.theses.fr/2003DIJOS055.
Pełny tekst źródłaThe objective of this work was the development of an hydrogen fluoride (HF) sensor by mechanical response of SiOx and Si3N4 microcantilevers that have typical dimensions of 2003́00́. 5 æm. Their fabrication uses thin films coating, lithography and reactive ion etching processes. A XPS, SIMS, AFM study of the dielectric layers shows a lateral etching orientation for SiOx and a transversal one for Si3N4. A gold layer (not reactive) is deposited on one face of the cantilever, making it sensitive to both temperature and surface stress. The sensitivity of the system to the temperature, pressure and humidity has been defined. SiOx and Si3N4 layers reactivity toward HF was measured in term of deflection and frequency resonance variation. The response of the sensor depends on the amount of HF introduced into the cell. The gas is then detected in term of irreversible deflection until 260 ppb. The influence of the surface roughness and stoichiometry of the reactive layers was demonstrated
Tomazeli, Duarte Leonardo. "Conception de réseaux de capteurs chimiques intelligents : une approche fondée sur les méthodes de séparation de sources". Grenoble INPG, 2009. http://www.theses.fr/2009INPG0085.
Pełny tekst źródłaLn this thesis, we study the problem of quantitative chemical analysis through sensor arrays. However, unlike the majority of the works in this line, we consider an unsupervised approach in which the adjustment of the signal processing method does not require a set of training (or calibration) points. This situation can be formulated as a Blind Source Separation (BSS) problem. The difficulty here lies in the fact that the chemical sensors considered in this research are dearly nonlinear devices, thus resulting in nonlinear mixing models. The main contributions of this research are related to the development of nonlinear BSS methods tailor-made for arrays of ion-selective electrodes. We consider a paradigm based upon the Independent Component Analysis but also upon other strategies that allow us to incorporate some information typical of the application considered in this research, like positivity of chemical activities
Zimmermann, Céline. "Conception, réalisation et étude de micro-capteurs à ondes de Love pour applications en milieu gazeux : Cas de la détection de composés organophosphorés". Bordeaux 1, 2002. http://www.theses.fr/2002BOR12471.
Pełny tekst źródłaBruniaux, Sophie. "Nouveaux hydrotropes biosourcés : conception, synthèse et propriétés physico-chimiques en milieu hautement salin". Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2378.
Pełny tekst źródłaHistorically, chemical industry was based on fossil ressources, but alternative processes have been developed since the nineteens to be green and to answer to the environmental eco-responsibility questions. In this context, a collaboration work between three public laboratories and the SAS PIVERT emerged to find new biosourced hydrotropes starting from various polyols – such as glycerol, main byproduct of the fuel production – and resistant to high saline conditions. A specific design was defined by our physico-chemical partner for the synthesis of hydrotropes. Differents approaches were used to obtain these compounds, such as a new method of methylation using sub/supercritical methanol with a phase of optimization, and another about the scope of the reaction that reduced the reaction steps. The transposition of the reductive alkylation of various alcohols was also realized – using a heterogeneous catalysis – with the obtention of various ethers, in continuous flow conditions, by the intermediate of the use of the HCube Pro from ThalesNano
Perez, Marc. "Conception, hémisynthèse et évaluation biologique de composés à visée antitumorale à partir de produits naturels". Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066760.
Pełny tekst źródłaThis manuscript reports the semisynthesis of anticancer compounds starting from securinine, an alkaloid found in the shrub Securinega suffruticosa. A set of compounds was obtained by cleavage and functionnalization of the scaffold of securinine. 1,6-addition reaction have been developed to afford further analogues. Palladium-catalyzed cross coupling reactions such as Heck, Sonogashira and Suzuki couplings have been used for the synthesis of new C14 or C15 substituted securinine derivatives. The anticancer properties of these derivatives were assayed against four cancer cell lines and were used to define the structure-activity relationship of securinine. Noteworthy, potent cytotoxic derivatives displaying an IC50 of 60 nM have been obtained
Blanc, Claire-Line. "Conception et optimisation d’un procédé innovant pour la purification d’acides organiques issus de biotechnologie". Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0008.
Pełny tekst źródłaThe objective of this study is to evaluate the use of preparative chromatography in the context of the elaboration and optimization of an innovative purification process of organic acids from biotechnology. Lactic and succinic acids were mainly studied. They are produced by fermentation and used in industry as additive, for a long time. They are identified as promising building blocks for green chemistry development, from renewable carbon. In particular, they are monomers for bioplastic industry. Unlike historical utilizations, this new type of application requires much higher purity levels. Those purities are currently obtained by additional purification steps, like liquid-liquid extraction, distillation and/or crystallization. We tried to evaluate if the required specifications may be reached by the implementation of preparative chromatography. For this chromatography was studied in details as unitary operation, in order to better understand separation mechanisms of studied compounds and implementation parameters. Two resin types were mainly used, a strong cationic one and a strong anionic one. Firstly, thermodynamic study of the adsorption of three organic acids in pure solution was performed. It revealed very different performances for both resins: adsorption on strong cationic resin is quite linear, whereas on strong anionic one adsorption is strongly nonlinear and fits with Langmuir model. Elution velocity influence on peak shape and so on dispersion was then studied. Column efficiency decreases linearly with elution velocity, accordingly to Van Deemter model. It was shown that the line slope was identical at lab scale and on a pilot ten times bigger. Then it may be used to predict column efficiency evolution during scale-up. Mixing solutions from synthetic or real origin were studied, to evaluate operational parameter influence on the separation, as load, feed concentration, pH… On the strong anionic resin, a first modeling was developed for experimental results. It highlighted that Langmuir type adsorption mechanism is not able to explain peak shape and position. We supposed that an ion exchange mechanism with the organic acid dissociated part may happen. This exchange may have a significant impact on peak shape and position, even if organic acids are mainly in molecular form, because of a low work pH. 4 Separations established at lab scale were validated at pilot scale in continuous chromatography ISMB. It was demonstrated that the anionic resin allows to reach a higher productivity than the cationic one, with a similar productivity. A complete purification process was tested with succinic acid, using bipolar electrodialysis acidification, reverse osmosis concentration, preparative chromatography separation with a strong anionic resin and nanofiltration discoloration. Product was then crystallized, to be compared to an industrial product. Our crystals were close to waited specifications and relatively better than the industrial ones. An additional ion exchange step could have allows to reach polymer grade. We show that chromatography is useful in an organic acid purification process, in order to reach a very high purity
Fathallah, Houssem Eddine. "Conception d'un système temps-réel de surveillance de l'exposition aux polluants de l'air intérieur : application au formaldéhyde". Electronic Thesis or Diss., Université de Lorraine, 2016. http://www.theses.fr/2016LORR0100.
Pełny tekst źródłaFormaldehyde is classified as a "high priority" pollutant in the indoor air quality. Because of its health effects, the emerging French regulation (Action 7 of PNSE2) requires the measurement of formaldehyde in public places (schools, kindergartens etc.) from 2017. However, no device on the market is able to provide accurate measurements in real time and at low cost. This thesis forms part of the ANR project CAPFEIN (réseau de CAPteurs de FormaldEhyde intelligents pour la surveillance de l'air Intérieur) whose purpose is to develop a "smart Formaldehyde sensor". The thesis objective is to design a real-time monitoring system of human exposure to formaldehyde, and more generally to indoor air pollutant. The sensors must be equipped with a communication interface to automatically collect measurements at different points of the environment to be monitored. Two monitoring systems have been developed. The first is Designed with commercial off-the-shelf component and a centralized architecture based on the concept of the Internet of Things (IoT). The second was designed from the CRAN and corresponds to the development of a solution based on a distributed approach. A smart badge has been developed. It can monitor exposure levels to each cardholder. The major constraints of this work consist on the ability to locate people in an indoor environment and the ability to optimize the algorithms in terms of memory space and power consumption. For the optimization part, the moving average exponential weighting methods have been implemented and evaluated. Both prototypes were tested in buildings of CRAN and showed interest
Książki na temat "Produits chimiques – Conception"
Ontario. Esquisse de cours 12e année: Sciences de l'activité physique pse4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Technologie de l'information en affaires btx4e cours préemploi. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Études informatiques ics4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Mathématiques de la technologie au collège mct4c cours précollégial. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Sciences snc4m cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: English eae4e cours préemploi. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Le Canada et le monde: une analyse géographique cgw4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Environnement et gestion des ressources cgr4e cours préemploi. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Histoire de l'Occident et du monde chy4c cours précollégial. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaOntario. Esquisse de cours 12e année: Géographie mondiale: le milieu humain cgu4u cours préuniversitaire. Vanier, Ont: CFORP, 2002.
Znajdź pełny tekst źródłaCzęści książek na temat "Produits chimiques – Conception"
ENJOLRAS, Manon, Daniel GALVEZ i Mauricio CAMARGO. "Les premières phases de conception de produit : une application de AHP". W La décision en innovation, 59–95. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9089.ch2.
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