Littérature scientifique sur le sujet « Ethylene Systems »
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Articles de revues sur le sujet "Ethylene Systems"
Zemlyanskaya, Elena V., Nadya A. Omelyanchuk, Elena V. Ubogoeva et Victoria V. Mironova. « Deciphering Auxin-Ethylene Crosstalk at a Systems Level ». International Journal of Molecular Sciences 19, no 12 (14 décembre 2018) : 4060. http://dx.doi.org/10.3390/ijms19124060.
Texte intégralGubrium, E. K., D. G. Clark, H. J. Klee, T. A. Nell et J. E. Barrett. « Analysis of Horticultural Performance of Ethylene-insensitive Petunias and Tomatoes ». HortScience 32, no 3 (juin 1997) : 499D—499. http://dx.doi.org/10.21273/hortsci.32.3.499d.
Texte intégralFaingol'd, E. E., S. L. Saratovskikh, A. N. Panin, O. N. Babkina, I. V. Zharkov, N. O. Garifullin, G. V. Shilov et N. M. Bravaya. « Ethylene/propylene and ethylene/propylene/5-ethylidene-2-norbornene copolymerizations on metallocene/(2,6-tBu2PhO-)AliBu2 catalyst systems ». Polymer 220 (avril 2021) : 123559. http://dx.doi.org/10.1016/j.polymer.2021.123559.
Texte intégralSamuel, T., et G. S. Laddha. « The ternary systems with ethylene glycol ». Journal of Applied Chemistry 9, no 4 (4 mai 2007) : 246–48. http://dx.doi.org/10.1002/jctb.5010090409.
Texte intégralHernández, Luis González, Andrés Rodríguez Díaz et Juan Luis de Benito González. « Different Curing Systems for Ethylene-Propylene Elastomers ». Rubber Chemistry and Technology 65, no 5 (1 novembre 1992) : 869–78. http://dx.doi.org/10.5254/1.3538647.
Texte intégralHammouda, B., D. Ho et S. Kline. « SANS from Poly(ethylene oxide)/Water Systems ». Macromolecules 35, no 22 (octobre 2002) : 8578–85. http://dx.doi.org/10.1021/ma011657n.
Texte intégralGRAY, F., J. MACCALLUM et C. VINCENT. « Poly(ethylene oxide) - LiCF3SO3 - polystyrene electrolyte systems ». Solid State Ionics 18-19 (janvier 1986) : 282–86. http://dx.doi.org/10.1016/0167-2738(86)90127-x.
Texte intégralXiao, Min, et Margaret W. Frey. « Study of cellulose/ethylene diamine/salt systems ». Cellulose 16, no 3 (28 février 2009) : 381–91. http://dx.doi.org/10.1007/s10570-009-9284-2.
Texte intégralBogdanov, B., et M. Mihailov. « Melting of water/poly(ethylene oxide) systems ». Journal of Polymer Science : Polymer Physics Edition 23, no 10 (octobre 1985) : 2149–58. http://dx.doi.org/10.1002/pol.1985.180231011.
Texte intégralMichiels, Wilfried, et Antonio Muñoz-Escalona. « Mixed cocatalyst systems in metallocene ethylene polymerization ». Macromolecular Symposia 97, no 1 (juillet 1995) : 171–83. http://dx.doi.org/10.1002/masy.19950970118.
Texte intégralThèses sur le sujet "Ethylene Systems"
Mastroianni, Sergio. « New catalytic systems for the polymerisation of ethylene ». Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343906.
Texte intégralIemsam-Arng, J. « Poly(ethylene) glycol based delivery systems for nucleic acid therapies ». Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1381001/.
Texte intégralCheung, Adolf S. F. « Phase behavior of two binary systems containing ethylene at supercritical conditions ». Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/5719.
Texte intégralBeigzadeh, Daryoosh. « Long-chain branching in ethylene polymerization using combined metallocene catalyst systems ». Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0020/NQ52024.pdf.
Texte intégralAnantharaman, Bharthwaj. « Reaction mechanisms for catalytic partial oxidation systems : application to ethylene epoxidation ». Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32328.
Texte intégralIncludes bibliographical references.
With the rapid advances in kinetic modeling, building elementary surface mechanisms have become vital to understand the complex chemistry for catalytic partial oxidation systems. Given that there is selected experimental knowledge on surface species and a large number of unknown thermochemical, rate parameters, the challenge is to integrate the knowledge to identify all the important species and accurately estimate the parameters to build a detailed surface mechanism. This thesis presents computational methodology for quickly calculating thermodynamically consistent temperature/coverage-dependent heats of formation, heat capacities and entropies, correction approach for improving accuracy in heats of formation predicted by composite G3- based quantum chemistry methods, and detailed surface mechanism for explaining selectivity in ethylene epoxidation. Basis of the computational methodology is the Unity Bond Index- Quadratic Exponential Potential (UBI-QEP) approach, which applies quadratic exponential potential to model interaction energies between atoms and additive pairwise energies to compute total energy of an adsorbed molecule. By minimizing the total energy subject to bond order constraint, formulas for chemisorption enthalpies have been derived for surface species bound to on-top, hollow and bridge coordination sites with symmetric, asymmetric and chelating coordination structures on transition metal catalysts. The UBI-QEP theory for diatomics has been extended for polyatomic adsorbates with empirical modifications to the theory.
(cont.) Formulas for activation energies have been derived for generic reaction types, including simple adsorption, dissociation-recombination, and disproportionation reactions. Basis of the correction approach is the Bond Additivity Correction (BAC) procedures, which apply atomic, molecular and bond- wise modifications to enthalpies of molecules predicted by G3B3 and G3MP2B3 composite quantum chemistry methods available in Gaussian® suite of programs. The new procedures have improved the accuracy of thermochemical properties for open and closed shell molecules containing various chemical moieties, multireference configurations, isomers and degrees of saturation involving elements from first 3 rows of the periodic table. The detailed mechanism explains the selectivity to ethylene oxide based on the parallel branching reactions of surface oxametallacycle to epoxide and acetaldehyde. Using Decomposition Tree Approach, surface reactions and species have been generated to develop a comprehensive mechanism for epoxidation. As a result of these developments in the thesis, chemisorption enthalpies can now be estimated within 3 kcal/mol of experimental values for transition metal catalysts and enthalpies predicted by G3B3 and G3MP2B3 Gaussian methods can be corrected within 0.5 kcal/mol. Examples of heterogeneous reaction systems involving silver-catalyzed ethylene epoxidation demonstrate the effectiveness of the methodologies developed in this work.
by Bharthwaj Anantharaman.
Ph.D.
Polverari, Marco. « Dynamic and evanescent wave light scattering of poly(ethylene oxide) - latex systems ». Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28515.
Texte intégralThese studies allowed to ascertain the presence of PEO clusters in aqueous solution. The cluster size was found to be time dependent and to vary between 0.45 $ mu$m and 0.90 $ mu$m. The clusters were found to be in a thermodynamic equilibrium with the free polymer in solution and were found to reform spontaneously after a 30 minute period following filtration.
Adsorption studies indicated that the adsorption of PEO onto latex particles is kinetically controlled and that increased surface roughness and polarity of the latex particles decreases PEO adsorption. PEO clusters in solution were found to increase the value of the effective diffusion constant, D$ rm sb{eff}$ and thus decrease the calculated hydrodynamic layer thickness.
Evanescent wave light scattering was used in conjunction with a hydrodynamic impinging jet method for the study of depositing and non-depositing colloidal systems near interfaces. For non-depositing systems a comparison of the measured particle concentration profiles to the theoretically expected particle concentration profiles, calculated from DLVO theory, was made. The agreement was found to be very good.
The deposition of bare and PEO-coated latex particles onto glass interfaces was also investigated. From the data it was found that bare and smooth latex particles adsorb much more strongly onto collector surfaces than "hairy" latex particles which have long copolymer chains, such as itachonic acid, grafted onto their surfaces. The results indicated that the thicker the adsorbed polymer layer, the stronger the steric force preventing deposition of the polymer coated colloidal particles onto the collector surface. When the combined ellipsometric layer thickness of the particles and the collector surface exceeded a critical value, found to be about 15 nm, no particle deposition onto the collector surface was possible.
Nacerodien, Mogamat Thaabit. « Investigation of polymer grade blending in Ziegler-Natta Catalysed ethylene polymerisation systems ». Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/9122.
Texte intégralPolyethylene is one of the most widely used polymers to date and it is an important commodity in a variety of fields. Most existing polyethylene plants operate on technology involving heterogeneous Ziegler-Natta catalysts. Plants often change operating conditions to produce different polymer grades; this allows them to cater to a larger polymer market. A side-effect of this practice is the unwanted formation of off-spec polymer during the grade transition periods. Numerous studies have been conducted to address the issue of off-spec polymer formation. These studies involve applying optimal control theory to minimise the grade transition time or to minimise the amount of off-spec polymer generated during the transient period. This field of study is known as grade transition optimisation. The current study aims to provide an alternative approach to addressing the problem of offspec accumulation. It is proposed that stored off-spec polymer is blended with virgin polymer to provide a saleable and desirable product. The approach might be different, but the same techniques used in grade transition optimisation are applied. Polyethylene produced using Ziegler-Natta catalysts have relatively linear chains, thus a chain length distribution coefficient is sufficient to characterise the polymer product. The number average chain length and polydispersity index are adequate representatives of this distribution for reporting the properties of a polyethylene grade. For the purpose of applying optimal control theory, a polyethylene production process model was developed to calculate these average properties using a kinetic scheme based on fundamental principles. This process model is able to predict the polymer properties under both steady-state and unsteady-state behaviour. A key feature of the model is its ability to solve the system with low computational expense due to the use of the segregation approach to link particle properties to the overall bulk phase. This is especially useful since optimisation algorithms used in optimal control theory are iterative by nature. The Differential Evolution Algorithm (DEA) was used to minimise the objective functions that were developed for the optimisation schemes due to its ability to evaluate objective functions in parallel. A model of the blending aspect of the process was developed where it was derived that the polymer moments are additive on a mass basis. Pure grades were blended in a laboratory in various mass ratios and analysed using GPC to determine their molecular weight distribution curves. It was found that the model-predicted curves and the experimentally-determined curves were an excellent match, thus validating the model. In the current study, three procedures for blending off-spec material under standard industry conditions are proposed. The first method involves the introduction of off-spec polymer on a continuous basis to the virgin polymer stream during steady-state operation.
Radcliffe, James Edward. « Discovery and development of novel P,N ligands for selective ethylene oligomerisation systems ». Thesis, Durham University, 2015. http://etheses.dur.ac.uk/11301/.
Texte intégralAlzamly, Ahmed. « The Role of Aluminate in the Activation of Catalytic Systems for Ethylene Oligomerization ». Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31024.
Texte intégralHagan, Susan Anne. « Poly(lactic acid)-poly(ethylene glycol) copolymers for use as drug delivery systems ». Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/30646/.
Texte intégralLivres sur le sujet "Ethylene Systems"
United States. National Aeronautics and Space Administration., dir. Monitoring ethylene emissions from plants cultured for a controlled ecological life support system : Final technical report. [Washington, DC : National Aeronautics and Space Administration, 1995.
Trouver le texte intégralUnited States. National Aeronautics and Space Administration., dir. Monitoring ethylene emissions from plants cultured for a controlled ecological life support system : Final technical report. [Washington, DC : National Aeronautics and Space Administration, 1995.
Trouver le texte intégralNational Academies Press (U.S.), dir. Review of the Environmental Protection Agency's draft IRIS assessment of tetrachloroethylene. Washington, D.C : National Academies Press, 2010.
Trouver le texte intégralAAMI TIR56:2013/(R)2020 ; Guidance for the development, validation and routine control of an ethylene oxide sterilization process utilizing flexible bag systems for the sterilization of medical devices. AAMI, 2013. http://dx.doi.org/10.2345/9781570205194.
Texte intégralChapitres de livres sur le sujet "Ethylene Systems"
Johansson, Göte. « Affinity Partitioning in PEG-Containing Two-Phase Systems ». Dans Poly(Ethylene Glycol) Chemistry, 73–84. Boston, MA : Springer US, 1992. http://dx.doi.org/10.1007/978-1-4899-0703-5_5.
Texte intégralApicella, A., B. Cappello, M. A. Del Nobile, M. I. La Rotonda, G. Mensitieri, L. Nicolais et S. Seccia. « Poly(ethylene oxide)-Based Delivery Systems ». Dans ACS Symposium Series, 111–25. Washington, DC : American Chemical Society, 1994. http://dx.doi.org/10.1021/bk-1994-0545.ch009.
Texte intégralCristescu, S. M., et F. J. M. Harren. « Life science trace gas facility : a way towards top-research on biological systems ». Dans Advances in Plant Ethylene Research, 441–42. Dordrecht : Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6014-4_93.
Texte intégralVidhyasekaran, P. « Ethylene Signaling System in Plant Innate Immunity ». Dans Plant Hormone Signaling Systems in Plant Innate Immunity, 195–244. Dordrecht : Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9285-1_4.
Texte intégralGamble, R. L., M. L. Coonfield, M. D. Randlett et G. E. Schaller. « The Role of Two-Component Systems in Ethylene Perception ». Dans Biology and Biotechnology of the Plant Hormone Ethylene II, 59–64. Dordrecht : Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4453-7_12.
Texte intégralFrauendorfer, Eric, Muhammad Babar, Timo Melchin et Wolf-Dieter Hergeth. « Monitoring of Vinyl Acetate–Ethylene Processes : An Industrial Perspective ». Dans Polymer Reaction Engineering of Dispersed Systems, 183–214. Cham : Springer International Publishing, 2017. http://dx.doi.org/10.1007/12_2017_22.
Texte intégralDole, John M., et James E. Faust. « Postharvest management. » Dans Cut flowers and foliages, 342–68. Wallingford : CABI, 2021. http://dx.doi.org/10.1079/9781789247602.0008.
Texte intégralSri Nithya Mahottamananda, Jayapal, Dubey Vanchhit Kumar, Abdul Khaleel Afreen, S. Dinesh, Wahab Ashiq, P. N. Kadiresh et M. Thirumurugan. « Mechanical Characteristics of Ethylene Vinyl Acetate Mixed Beeswax Fuel for Hybrid Rockets ». Dans Advances in Design and Thermal Systems, 389–400. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6428-8_31.
Texte intégralVolodin, A. A., et B. P. Tarasov. « CVD-Synthesis Peculiarities of Carbon Nanomaterials from Ethylene with Gaseous Additions ». Dans Carbon Nanomaterials in Clean Energy Hydrogen Systems - II, 177–81. Dordrecht : Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0899-0_15.
Texte intégralNifant’ev, Ilya E., Leila Yu Ustynyuk et Dmitri N. Laikov. « A DFT Study of Ethylene Polymerization by Zirconocene-boron Catalytic Systems ». Dans Organometallic Catalysts and Olefin Polymerization, 72–85. Berlin, Heidelberg : Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59465-6_7.
Texte intégralActes de conférences sur le sujet "Ethylene Systems"
Graf, John C., Prashant S. Chintawar et J. R. Kittrell. « Photocatalytic Purification of Spacecraft Air : Ethylene Destruction ». Dans International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1998. http://dx.doi.org/10.4271/981803.
Texte intégralRujitanaroj, Pim-on, Nuttaporn Pimpha et Pitt Supaphol. « Preparation of Ultrafine Poly(ethylene oxide)/Poly(ethylene glycol) Fibers Containing Silver Nanoparticles as Antibacterial Coating ». Dans 2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems. IEEE, 2007. http://dx.doi.org/10.1109/nems.2007.352202.
Texte intégralDeshmukh, Salim, Tore Larsen et Shanta Seereeram. « Digitalized Next Generation Mono Ethylene Glycol Regeneration Systems ». Dans International Petroleum Technology Conference. International Petroleum Technology Conference, 2020. http://dx.doi.org/10.2523/19927-ms.
Texte intégralDeshmukh, Salim, Tore Larsen et Shanta Seereeram. « Digitalized Next Generation Mono Ethylene Glycol Regeneration Systems ». Dans Abu Dhabi International Petroleum Exhibition & Conference. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/202907-ms.
Texte intégralDeshmukh, Salim, Tore Larsen et Shanta Seereeram. « Digitalized Next Generation Mono Ethylene Glycol Regeneration Systems ». Dans International Petroleum Technology Conference. International Petroleum Technology Conference, 2020. http://dx.doi.org/10.2523/iptc-19927-ms.
Texte intégralLai, Antonella, Luigi De Dominicis, Roberta Fantoni, Gianfranco Giubileo, D. Piccinelli et Dan C. Dumitras. « Detection of ethylene traces by photoacoustic spectroscopy ». Dans Medical Imaging 2003 Physiology and Function : Methods, Systems, and Applications, sous la direction de Alexis Carabelas, Giuseppe Baldacchini, Paolo Di Lazzaro et Dimitrios Zevgolis. SPIE, 2003. http://dx.doi.org/10.1117/12.513679.
Texte intégralSeshimo, Y., Y. Ike, S. Kojima, Michio Tokuyama, Irwin Oppenheim et Hideya Nishiyama. « Brillouin and Raman Scattering Study of Ethylene Glycol Aqueous Solutions ». Dans COMPLEX SYSTEMS : 5th International Workshop on Complex Systems. AIP, 2008. http://dx.doi.org/10.1063/1.2897819.
Texte intégralDerelı, Ömer, Ebru Karakaş Sarikaya et Yusuf Erdoğdu. « Investigation of molecular and radical structures of ethylene glycol ». Dans SolarPACES 2017 : International Conference on Concentrating Solar Power and Chemical Energy Systems. Author(s), 2018. http://dx.doi.org/10.1063/1.5078895.
Texte intégralTambwekar, Jyoti A., Robert M. Cowan, Jitendra A. Joshi, Peter F. Strom et Melvin S. Finstein. « Removal of Trace Concentrations of Ethylene from Air by Biofiltration : Preliminary Results ». Dans International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1998. http://dx.doi.org/10.4271/981614.
Texte intégralKlassen, S. P., W. F. Campbell et B. G. Bugbee. « Effects of Low Ethylene Levels on USU-Apogee and Super-Dwarf Wheat ». Dans International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1999. http://dx.doi.org/10.4271/1999-01-2025.
Texte intégralRapports d'organisations sur le sujet "Ethylene Systems"
Eshel, Amram, Jonathan P. Lynch et Kathleen M. Brown. Physiological Regulation of Root System Architecture : The Role of Ethylene and Phosphorus. United States Department of Agriculture, décembre 2001. http://dx.doi.org/10.32747/2001.7585195.bard.
Texte intégralPerl-Treves, Rafael, Rebecca Grumet, Nurit Katzir et Jack E. Staub. Ethylene Mediated Regulation of Sex Expression in Cucumis. United States Department of Agriculture, janvier 2005. http://dx.doi.org/10.32747/2005.7586536.bard.
Texte intégralSisler, Edward C., Raphael Goren et Akiva Apelbaum. Controlling Ethylene Responses in Horticultural Crops at the Receptor Level. United States Department of Agriculture, octobre 2001. http://dx.doi.org/10.32747/2001.7580668.bard.
Texte intégralCrisosto, Carlos, Susan Lurie, Haya Friedman, Ebenezer Ogundiwin, Cameron Peace et George Manganaris. Biological Systems Approach to Developing Mealiness-free Peach and Nectarine Fruit. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7592650.bard.
Texte intégralAvni, Adi, et Kirankumar S. Mysore. Functional Genomics Approach to Identify Signaling Components Involved in Defense Responses Induced by the Ethylene Inducing Xyalanase Elicitor. United States Department of Agriculture, décembre 2009. http://dx.doi.org/10.32747/2009.7697100.bard.
Texte intégralFriedman, Haya, Julia Vrebalov, James Giovannoni et Edna Pesis. Unravelling the Mode of Action of Ripening-Specific MADS-box Genes for Development of Tools to Improve Banana Fruit Shelf-life and Quality. United States Department of Agriculture, janvier 2010. http://dx.doi.org/10.32747/2010.7592116.bard.
Texte intégralFriedman, Haya, Julia Vrebalov et James Giovannoni. Elucidating the ripening signaling pathway in banana for improved fruit quality, shelf-life and food security. United States Department of Agriculture, octobre 2014. http://dx.doi.org/10.32747/2014.7594401.bard.
Texte intégralO'Neill, Sharman, Abraham Halevy et Amihud Borochov. Molecular Genetic Analysis of Pollination-Induced Senescence in Phalaenopsis Orchids. United States Department of Agriculture, 1991. http://dx.doi.org/10.32747/1991.7612837.bard.
Texte intégralPhilosoph-Hadas, Sonia, Peter Kaufman, Shimon Meir et Abraham Halevy. Signal Transduction Pathway of Hormonal Action in Control and Regulation of the Gravitropic Response of Cut Flowering Stems during Storage and Transport. United States Department of Agriculture, octobre 1999. http://dx.doi.org/10.32747/1999.7695838.bard.
Texte intégralLurie, Susan, John Labavitch, Ruth Ben-Arie et Ken Shackel. Woolliness in Peaches and Nectarines. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7570557.bard.
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