Relevant bibliographies by topics / Compoundage

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Academic literature on the topic 'Compoundage'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Compoundage"

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Attia, Mohamed I., Mohamed N. Aboul-Enein, Aida A. El-Azzouny, Yousreya A. Maklad, and Hazem A. Ghabbour. "Anticonvulsant Potential of Certain New (2E)-2-[1-Aryl-3-(1H-imidazol-1-yl)propylidene]-N-(aryl/H)hydrazinecarboxamides." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/357403.

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Anticonvulsant potential and neurotoxicity of certain new imidazole-containing arylsemicarbazones6a–pare reported. The test compounds6a–pexhibited anticonvulsant activity mainly in the scPTZ screen. Compound6pemerged as the most active surrogate displaying 100% protection at a dose level of 636 μmol/kg in the scPTZ screen without any neurotoxicity. The assigned (E)-configuration of the title compounds6a–pwas confirmedviasingle crystal X-ray structure of compound6g.
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Mirebeau, I., G. Iancu, M. Hennion, G. Gavoille, and J. Hubsch. "Neutron study of the frustrated spinel compoundMg1+tFe2−2tTitO4(t=0.55)." Physical Review B 54, no. 22 (December 1, 1996): 15928–36. http://dx.doi.org/10.1103/physrevb.54.15928.

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Eya'ane Meva, Francois, Timothy John Prior, David John Evans, and Emmanuel Roland Mang. "Crystal structures ofN′-aminopyridine-2-carboximidamide andN′-{[1-(pyridin-2-yl)ethylidene]amino}pyridine-2-carboximidamide." Acta Crystallographica Section E Crystallographic Communications 73, no. 7 (June 13, 2017): 1021–25. http://dx.doi.org/10.1107/s2056989017008416.

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The crystal structures ofN′-aminopyridine-2-carboximidamide (C6H8N4),1, andN′-{[1-(pyridin-2-yl)ethylidene]amino}pyridine-2-carboximidamide (C13H13N5),2, are described. The non-H atoms in compound1are nearly planar (r.m.s. deviation from planarity = 0.0108 Å), while2is twisted about the central N—N bond by 17.8 (2)°. Both molecules are linked by intermolecular N—H...N hydrogen-bonding interactions;1forms a two-dimensional hydrogen-bonding network and for2the network is a one-dimensional chain. The bond lengths of these molecules are similar to those in other literature reports of azine and diimine systems.
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Yuksek, H., O. Akyildirim, and O. Gursoy Kol. "Synthesis and In Vitro Antioxidant Evaluation of New 1,3,5-Tri-{2-methoxy-4-[(4,5-dihydro-1H-1,2,4-triazol-5-on-4-yl)-azomethine]-phenoxycarbonyl}-Benzene Derivatives." Journal of Chemistry 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/517420.

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Nine new 4,5-dihydro-1H-1,2,4-triazol-5-one derivatives were synthesized and characterized by elemental analyses and IR,1H-NMR,13C-NMR and UV spectral data. The synthesized compounds were analyzed for theirin vitropotential antioxidant activities in three different methods. Those antioxidant activities were compared to standard antioxidants such as BHA, BHT andα-tocopherol. Compounds4e,5aand5dshowed best activity for iron binding. In addition, the compounds4were titrated potentiometrically with tetrabutylammonium hydroxide (TBAH) in four non-aqueous solvents (isopropyl alcohol,tert-butyl alcohol, acetone andN,N-dimethyl formamide). Thus, the half-neutralization potential values and the correspondingpKavalues were determined in all cases.
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Iiduka, Hideaki, and Masato Uchida. "Fixed Point Optimization Algorithms for Network Bandwidth Allocation Problems with Compoundable Constraints." IEEE Communications Letters 15, no. 6 (June 2011): 596–98. http://dx.doi.org/10.1109/lcomm.2011.040711.101369.

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Kiran, G., T. Maneshwar, Y. Rajeshwar, and M. Sarangapani. "Microwave-Assisted Synthesis, Characterization, Antimicrobial and Antioxidant Activity of Some New Isatin Derivatives." Journal of Chemistry 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/192039.

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A series of β-Isatin aldehyde-N,N′-thiocarbohydrazone derivatives were synthesized and assayed for theirin vitroantimicrobial and antioxidant activity. The new compounds were characterized based on spectral (FT-IR, NMR, MS) analyses. All the test compounds possessed a broad spectrum of activity having MIC values rangeing from 12.5 to 400 μg/ml against the tested microorganisms. Among the compounds3e,3jand3nshow highest significant antimicrobial activity. The free radical scavenging effects of the test compounds against stable free radical DPPH (α,α-diphenyl-β-picryl hydrazyl) and H2O2were measured spectrophotometrically. Compounds3j,3n,3l, and3e, respectively, had the most effective antioxidant activity against DPPH and H2O2scavenging activity.
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Krug von Nidda, H. A., A. Schütz, M. Heil, B. Elschner, and A. Loidl. "Electron-spin-resonance investigation of the heavy-fermion compoundCe(Cu1−xNix)2Ge2." Physical Review B 57, no. 22 (June 1, 1998): 14344–51. http://dx.doi.org/10.1103/physrevb.57.14344.

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Darehkordi, Ali, and Somayeh Ghazi. "Synthesis of a New Class of Tris- and Bis(1,3,4-thiadiazol-2-amine) Methyl and Ethyl Tris- and Bis-2-(2-(2-benzoyl hydrazinyl)-4-oxothiazolidine) Acetate Derivatives." Journal of Chemistry 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/857956.

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Hydrazine, carbothioamide derivatives2,3, and4were synthesized by the condensation of 1, 3, 5-tri carbonyl tri chloride, Terephthaloyl dichloride, and 1, 4-dicarbonyl chloride with thiosemicarbazide in presence of pyridine as a solvent. The reaction of compounds2,3, and4with DMAD or DEAD led to the formation of 4-oxothiozolidine derivatives(4b–c),(3a-c), and(2c-d). The treatment of compounds2,3, and4with 1, 4′-diboromoacetophenone resulted in the formation of thiazole derivatives(2g, 3f, 4f). The treatment of compounds2,3, and4with sulfuric led to the formation of 4H-1,2,4-triazole-3-thiol derivatives (2f,3d, and4d). The cyclization of compounds2,3, and4in the presence of 2N NaOH resulted in the formation of compounds2e-4econtaining two or three [1,2,4]triazole rings which are linked to the benzene ring. These compounds are important and useful monomer for synthesis of various dendrimers.
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SINGH, R., P. S. MOHARIR, and V. M. MARU. "MUTUAL AND SELF-COMPOUNDING OF CHAOTIC SYSTEMS." International Journal of Bifurcation and Chaos 06, no. 04 (April 1996): 759–67. http://dx.doi.org/10.1142/s0218127496000424.

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The notion of compounding a chaotic system was introduced earlier. It consisted of varying the parameters of the compoundee system in proportion to the variables of the compounder system, resulting in a compound system which has in general higher Lyapunov exponents. Here, the notion is extended to self-compounding of a system with a real-earth example, and mutual compounding of dynamic systems. In the former, the variables in a system perturb its parameters. In the latter, two systems affect the parameters of each other in proportion to their variables. Examples of systems in such compounding relationships are studied. The existence of self-compounding is indicated in the geodynamics of mantle convection. The effect of mutual compounding is studied in terms of Lyapunov exponent variations.
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SINGH, R., P. S. MOHARIR, and V. M. MARU. "COMPOUND CHAOS." International Journal of Bifurcation and Chaos 06, no. 02 (February 1996): 383–93. http://dx.doi.org/10.1142/s0218127496000138.

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Compounding is a statistical notion. Essentially, it comprises of regarding the parameters in a particular statistical distribution as random variables with a prescribed distribution. The compound distribution then acquires the parameters of the compounding distribution as its own. As deterministic chaos, in spite of being deterministic, appears like a statistical phenomenon, the notion of compounding can be extended to chaotic systems. It is shown with illustrations that a chaotic system can be compounded by another chaotic system, giving rise to compound chaos which is, in general, “chaoticer”. The concept can also be used to make a periodic system chaotic, thus opening possibilities of “chaoticization”. Examples of compound chaos and chaoticization are given using Lorenz and Rössler systems, including their attractors and limit cycles as “compoundee” and/or “compounder” systems. The conclusions are based on quantitative studies of Lyapunov exponents and correlation dimensions.
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Dissertations / Theses on the topic "Compoundage"

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Le, Duc Anne. "Comportement et rupture de fibres cellulosiques lors de leur compoundage avec une matrice polymère." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2013. http://pastel.archives-ouvertes.fr/pastel-00982245.

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L'objectif de ce travail de thèse, réalisé dans le cadre de la Chaire Industrielle Bioplastiques financée par Mines ParisTech et Arkema, l'Oreal, Nestle, PSA et Schneider Electric, est de fournir une étude systématique sur les relations entre les conditions opératoires du procédé de compoundage et la structure de biocomposites polypropylène/fibres lin et Tencel®. En particulier, le comportement et la rupture des fibres ont été étudiés de manière détaillée pendant la mise en œuvre à l'état fondu en mélangeur interne et par extrusion bivis.Les fibres ont été observées in-situ en écoulement dans la matrice grâce à un système rhéo-optique. Ainsi, il a été montré que la décohésion des faisceaux de lin est facilitée par un rapport de forme initial plus grand. La fragmentation des fibres résulte d'un phénomène de fatigue et est provoquée par l'accumulation des déformations et de l'énergie mécanique. Au niveau de leur point de rupture, les fibres de lin et de Tencel® se déchirent et fibrillent, alors que les fibres élémentaires de lin cassent près de leurs " genoux ". Des analyses de distributions de tailles des fibres après compoundage avec la matrice ont corroboré les observations rhéo-optiques. Lorsque les conditions de mélange sont sévères, chaque " genou " devient un point de rupture et la longueur finale des fibres de lin se retrouve être égale à la longueur moyenne entre les " genoux ". Les faisceaux de lin initialement plus courts ne se dissocient et ne se fragmentent que très peu. La rupture des fibres de lin est différente en fonction de leur taille initiale et ces fibres ne conduisent pas au même comportement rhéologique pour les composites. En revanche, pour les fibres unitaires Tencel®, la taille initiale n'a que très peu d'influence sur leurs dimensions finales, à condition que les fibres ne soient pas trop longues et trop difficiles à disperser. Le temps de mélange est apparu déterminant pour préserver le rapport de forme des fibres. La déformation cumulée s'est révélée être un meilleur paramètre que l'énergie mécanique spécifique pour décrire à la fois la rupture des fibres de lin et de Tencel®. Les propriétés mécaniques en traction uniaxiale ont enfin été caractérisées et mises en relation avec les conditions de mélange et les dimensions finales des fibres.
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Gaboune, Asmaa. "Utilisation de la technique de compoundage par polymérisation pour la préparation de nanocomposites de Polyéthylène/Montmorillonite." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23755/23755.pdf.

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Gaboune, Asmaa. "Utilisation de la technique de compoundage par polymérisation pour la préparation de nanocomposite de polyéthylène/montmorillonite." Master's thesis, Université Laval, 2006. http://hdl.handle.net/20.500.11794/18549.

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Ramy-Ratiarison, Rindra. "Compoundage et transformation par injection de PLA renforcé par des fibres de cellulose : Analyse de la cristallisation, formulation et propriétés thermomécaniques induites." Thesis, Lille 1, 2010. http://www.theses.fr/2010LIL10176.

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L’objectif de ce travail était d’étudier le compoundage et la transformation par injection de composites PLA renforcés par des fibres de cellulose. La première partie concerne l’influence des conditions de compoundage et d’injection sur la structure du PLA. En particulier, l’influence des paramètres de mise en œuvre sur la dégradation durant l’extrusion a été mise en évidence. D’autre part, l’étude de la cristallisation met en évidence un phénomène singulier de dilatation du PLA durant la cristallisation froide dans le cas de pièces injectées. L’optimisation de l’étape de compoundage des composites est présentée dans la seconde partie. L’objectif était d’éviter la dégradation durant l’extrusion et d’optimiser la dispersion des fibres de cellulose. Un plan d’expérience a été utilisé pour définir les optimums des paramètres d’extrusion afin de limiter la dégradation et d’améliorer la dispersion des fibres de cellulose. Les compounds optimisés ont été utilisés pour étudier l’influence des paramètres d’injection sur la structure des composites et leur impact sur les propriétés mécaniques des composites injectés. Enfin, l’optimisation des propriétés thermomécaniques au travers de l’étude de la formulation des composites est présentée. Plus particulièrement, l’effet de la plastification du PLA et la compatibilisation à l’interface utilisant un PLA greffé anhydride maléique sont rapportés
The aim of this work was to study the compounding and injection molding of PLA composites based on cellulose fibres. In the first part, the influence of compounding and injection molding on the structure of the PLA is presented. Particularly, the influence of processing conditions on the degradation during extrusion was investigated. The study of the cristallization behavior evidenced an usual dilatation of PLA during cold cristallization in the case of injection molded parts. The optimization of the compounding step of the composites is presented in a second part. The aim was to avoid the degradation during the extrusion process and to optimize the dispersion of the cellulose fibers. A design of experiment was used to define the optimum compounding parameters in order to limit the degradation and improve the dispersion of the cellulose fibers. The optimized compounds were used to study the influence of injection molding conditions on the structure of the composites and its influence on the mechanical properties of injection molded composites. Finally, the optimization of composites thermomechanical properties using formulation was proposed. Particularly, the effect of plasticizing of PLA and the compatibilization at the interface using maleic anhydride grafted PLA are presented
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"Utilisation de la technique de compoundage par polymérisation pour la préparation de nanocomposites de Polyéthylène/Montmorillonite." Thesis, Université Laval, 2006. http://www.theses.ulaval.ca/2006/23755/23755.pdf.

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Books on the topic "Compoundage"

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Bhuvan, Bhuvneshwar Singh. Law relating to F.I.R. (first information report) and powers of police to investigate, arrest, and detain: Alongwith model forms list of compoundable offences and classification chart. Allahabad: Dwivedi Law Agency, 2013.

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