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Dissertations / Theses on the topic 'Hydrochloric acid'

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Published: 4 June 2021

Last updated: 26 July 2025

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1

Chang, Bong-Kyu. "The solubility and purity of amino acid crystals : II. Preferential incorporation of L-valine over L-leucine into L-isoleucine crystal during the crystallization from HCl solution." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/10951.

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2

Goveli, Ahmet. "Nickel Extraction From Gordes Laterites By Hydrochloric Acid Leaching." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607738/index.pdf.

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Leaching is the most widely used process for extraction of nickel metal from lateritic ores. In this study, nickel extraction from Manisa-G&ouml<br>rdes region laterites by hydrochloric acid leaching is aimed. The mineralogical analysis of sample showed that hematite, goethite, dolomite, quartz and smectite are the main minerals in the ore. Attrition scrubbing, cycloning and magnetic separation with permroll were used as preconcentration processes but results were unsatisfactory. HCl leaching experiments were conducted both at room temperature and at elevated temperatures. The effects of vario

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3

GAJAM, SOLIMAN YOUNES. "SOME ASPECTS OF HYDROCHLORIC ACID-LEACHING OF KAOLINITE CLAY." Diss., The University of Arizona, 1985. http://hdl.handle.net/10150/188000.

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A detailed investigation of the kinetics of dissolution of kaolinite clay in hydrochloric acid solution has been carried out. The rate of dissolution increases with calcination temperature, calcination time, and leach temperature. For example, almost 98% of the aluminum in the clay sample roasted at 540°C for 1 h can be dissolved in 20 min. The presence of fluoride ions in the leach solution significantly enhances aluminum dissolution. Changes in the pore structure of kaolinite clay due to calcination and hydrochloric acid leaching have been studied by a gas adsorption technique. The results o

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4

Moloney, Jeremy John. "Electrochemical processes on aluminium and its alloys in hydrochloric acid." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615755.

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5

Al-Othman, Amani Lutfi. "Gypsum production and hydrochloric acid regeneration by reaction of calcium chloride solution with sulfuric acid." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82463.

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One critical issue in chloride hydrometallurgy is the regeneration of the lixiviant HCl that is commonly achieved by pyrohydrolysis. It is the scope of this thesis to investigate a low temperature HCl regeneration process, which regenerates HCl and produces saleable gypsum. Experiments were performed to determine the optimum conditions of the chemical reaction that involved the reactive mixing of calcium chloride (CaCl2) solution with sulfuric acid (H2SO4) solution at low temperature and atmospheric pressure.<br>The results showed that the crystallization chemistry of the CaCl 2-H2SO4 r

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6

Bryce, Christine. "The kinetics of copper etching in ferric chloride-hydrochloric acid solutions /." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61225.

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The kinetics of copper etching were studied using a ferric chloride-hydrochloric acid etchant in a stirred-tank reactor. At a constant acid molarity of about 0.84 and FeCl$ sb3$ concentrations varying from 0 to 3 M, the etch rate was found to reach a maximum at about 2 M FeCl$ sb3$. The use of a ferric nitrate-nitric acid solution yielded similar results but substantially reduced etch rates.<br>Since the nitrate ion is essentially non-complexing with the ferric ion, the presence of chloro complexes of the ferric ion in FeCl$ sb3$-HCl etchant solutions was investigated. The FeCl$ sb2 sp+$ and F

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7

Li, Yan. "Studies on Cellulose Hydrolysis and Hemicellulose Monosaccharide Degradation in Concentrated Hydrochloric Acid." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31151.

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Given the volatile, generally high price of crude oil, as well as environmental concerns associated with its use as a fuel, development of alternative energy sources is currently of considerable interest. Lignocellulose-derived energy has the potential to supplant traditional fossil fuels in the future because of its economic and environmental advantages. Lignocellulosic biomass is abundant and renewable. Lignocellulose is primarily composed of cellulose, hemicellulose and lignin, which can be converted by acid hydrolysis to simple sugars used in fermentation to produce biofuels. In this stud

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8

Jabit, Nurul Ain. "Chemical and electrochemical leaching studies of synthetic and natural ilmenite in hydrochloric acid solutions." Thesis, Jabit, Nurul Ain (2017) Chemical and electrochemical leaching studies of synthetic and natural ilmenite in hydrochloric acid solutions. PhD thesis, Murdoch University, 2017. https://researchrepository.murdoch.edu.au/id/eprint/36360/.

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The research interest for upgrading ilmenite to synthetic rutile has increased over the years due to the increasing demand for titanium dioxide white pigment and titanium metal. Sulfate and chloride leaching processes in the absence or presence of reducing agents are the most commonly tested leaching routes. However, chloride leaching is more economical and hence the preferred option. It allows relatively easy treatment of waste solutions and therefore the regeneration and recycling of hydrochloric acid. Despite the many attempts to develop chloride processes to upgrade ilmenite to synthetic r

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9

Thomassen, Magnus Skinlo. "Hydrogen-chlorine fuel cell for production of hydrochloric acid and electric power : chlorine kinetics and cell design." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Natural Sciences and Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-775.

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<p>This thesis work is the continuation and final part of a joint project between the Department of Materials Technology, NTNU and Norsk Hydro Research Center in Porsgrunn, looking at the possibility of using fuel cells for production of hydrogen chloride and electric power. The experimental work encompass an evaluation of three hydrogen - chlorine fuel cell design concepts, development and implementation of a mathematical fuel cell model and a kinetic study of the chlorine reduction reaction. </p><p>The evaluated fuel cell designs consisted of a) a conventional PEM fuel cell applying a Nafion

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10

Jefferies, P. J. "Role of free hydrochloric acid in the low-cost regeneration of ferric chloride etchant by oxygen gas." Thesis, Cranfield University, 2005. http://dspace.lib.cranfield.ac.uk/handle/1826/3793.

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This thesis concerns the development of a low cost and environment- friendly method for the regeneration of the most widely used aqueous etchant, ferric chloride, found in photochemical machining (PCM) facilities. In order to implement the above process a comprehensive and automated chemical analysis and control system was designed to fully investigate the key parameters which previous research has suggested play a major role in the analysis of ferric chloride. Monitoring methods have been developed and deployed in a commercial environment such that the etchant could be analysed remotely acros

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11

Jones, Lynn. "Selective preconcentration of platinum and rhodium from hydrochloric acid media containing tin (II) chloride using polyurethane foam." Master's thesis, University of Cape Town, 1987. http://hdl.handle.net/11427/17661.

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Includes bibliographical references.<br>The potentially quantitative and selective sorption of chloro-(trichlorostannato)-platinum(II) and -rhodium (III/I) complex anions by polyurethane foams has been examined. Quantitative separation of platinum(II) from iridium and ruthenium has been achieved. Rhodium( III) is similarly sorbed by polyurethane foam in the presence of sufficient tin(II) chloride and-its clean separation from iridium has been achieved using this method. Ruthenium, although not significantly sorbed under the same conditions as platinum and rhodium, appears to inhibit the extrac

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12

Chisholm, Paul Norman. "Dry absorption of hydrogen chloride and sulfur dioxide by calcium-based sorbents from humidified flue gas /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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13

Hock, Sebastian. "Precipitation of hematite and recovery of hydrochloric acid from aqueous iron(II, III) chloride solutions by hydrothermal processing." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66966.

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Regeneration of HCl from process solutions is an important unit operation in chloride hydrometallurgy. Currently, it is accomplished by the highly capital and energy intensive technology of pyrohydrolysis. The research described in this thesis, has focused on an alternative HCl regeneration system from iron(II, III) chloride solutions that has been coined "Hydrolytic Distillation". This system relates to the earlier developed (in the 1970s) PORI Process. Basically this system involves two steps: (1) the oxidation of ferrous chloride solution by oxygen sparging under reflux co

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14

Jayaram, Varalakshmi. "Capture of Elemental Mercury in a Wet Membrane Plasma Enhanced Electrostatic Precipitator using Hydrochloric Acid as the Reagent Gas." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1133356270.

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15

Reynecke, Janetta Hendrina. "The influence of hydrochloric acid and chlorine exposure on the skin barrier function of precious metal refinery workers / Reynecke J.H." Thesis, North-West University, 2011. http://hdl.handle.net/10394/7288.

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Various hazardous chemical substances are used daily in the platinum refineries. This study was conducted in order to determine whether platinum refinery workers’ exposure to HCl and Cl2, two of the hazardous chemical substances, could damage the skin barrier function (i.e. skin hydration, trans–epidermal water loss and skin surface pH) of these workers. The participants of this study were fourteen workers that were exposed to HCl and Cl2, constituting the exposed group, and a control group that was made up of ten workers located in another building detached from the plant. Due to the fact tha

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16

Агафонова, О. А., та Л. М. Миронович. "Определение растворения лекарственного препарата метронидазола". Thesis, Сумский государственный университет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/65081.

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Метронидазол – синтетическое производное природного вещества азомицина, продуцируемого Streptomyces spp, является препаратом противомикробного действия и основными показателями качества является распадаемость лекарственных форм, растворение и количественное содержание активного вещества. Растворимость метронидазола определяет биодоступность препарата.

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17

Favero, Diana. "Obtenção de micro e nanocelulose para preparação de membranas poliméricas como barreira seletiva." reponame:Repositório Institucional da UCS, 2014. https://repositorio.ucs.br/handle/11338/907.

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O uso de membranas poliméricas vem sendo extensivamente estudado para operações de separação. O estudo de materiais e metodologias para desenvolvimento de tais membranas para redução de custos e melhora em propriedades, faz-se necessário frente a este cenário. No processo de preparação de membranas, materiais orgânicos, tais como polímeros, elastômeros, são empregados com a possibilidade de incorporação de materiais de reforço e para modificar as características de forma a favorecer determinados processos. Estas membranas são chamadas compósitas, obtidas pela dispersão física de um componente

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18

Al-Zubail, Saleh Abdullah. "An evaluation of efficiency of phenylenediamines as corrosion inhibitors for ASTM-A-179 steel in 1.0 N hydrochloric acid at room temperature." Ohio : Ohio University, 1986. http://www.ohiolink.edu/etd/view.cgi?ohiou1183039807.

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19

Al-Zubail, Saleh Abdullah. "An evaluation of efficiency of phenylenediamines as corrosion inhibitors for ASTM-A-179 steel in 1.0 N hydrochloric acid at room temperature." Ohio University / OhioLINK, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1183039807.

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20

Shea, James Christopher 1964. "Hyperfine structure in the microwave spectra of the iodine fluorides iodine heptafluoride and iodine pentafluoride and of the weakly bound complex hydrochloric acid...nitrous oxide." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277178.

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A pulsed-beam fourier transform microwave spectrometer was used to measure the rotational spectra of iodine heptafluoride, iodine pentafluoride, and the weakly bound complex, HCl...NNO. For IF7, only five rotational transitions were observed, and no resolvable hyperfine structure was detected. Based on this data, the A, B, and C rotational constants were determined to be 1746(3) MHz, 1732.0(8) MHz, and 1553.0(2) MHz, respectively. The existence of a pure rotational spectrum confirms that this molecule undergoes polar distortions. Twenty-two hyperfine components of the IF5 spectrum were recorde

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21

Browne, Clive R. H. "The dissociative single and double ionization of some simple molecules by fast ion and VUV photons." Thesis, Queen's University Belfast, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287327.

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22

Critchley, Andrew Duncan James. "Structure of free radicals." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327188.

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23

Amoras, Dinah Ribeiro. "Efeito de bebidas no esmalte dental submetido a desafio erosivo com ácido clorídrico." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/58/58133/tde-04022011-162217/.

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A erosão dental de origem endógena apresenta alta prevalência e o efeito da ingestão frequente de determinadas bebidas poderia intensificar ou atenuar a lesão no esmalte. A análise do potencial erosivo das bebidas é uma estratégia importante para prevenir seu efeito na estrutura dental. Neste contexto, este estudo avaliou através de um modelo in vitro o efeito de bebidas no esmalte dental previamente submetido a desafio erosivo com ácido clorídrico. O fator em estudo foi o tipo de bebida, em cinco níveis: refrigerante de limão de baixa caloria (Sprite Zero Coca-Cola® Brasil), leite Ultra

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24

Hermandez, Peral Ivan. "Evaluation of the ambient air quality analysis of HCL, H2S and NH3 from enhanced evaporation spray system ponds on the Highveld of South Africa." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-05262008-090359.

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25

Mesquita, Késsia Suênia Fidelis de. "Efeito de alimentos e bebidas no esmalte dental decíduo após desafio erosivo com ácido clorídrico." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/58/58135/tde-04072012-115105/.

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O objetivo deste estudo foi avaliar o efeito, in vitro, de alguns alimentos e bebidas industrializados oferecidos como lanche às crianças, sobre o esmalte dental decíduo, após simulação de desafio erosivo intrínseco em função do tempo de exposição. A coroa de cento e dois incisivos decíduos hígidos foram fixadas em bases acrílicas, expondo-se uma área de 2mm de diâmetro da superfície vestibular. Os espécimes foram submetidos a um desafio erosivo com ácido clorídrico e divididos aleatoriamente em 6 grupos (n=17): Leite Achocolatado Toddynho (Pepsico) - controle negativo, Petit Suisse Danoninho

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26

Wong, Pin Sing. "Studies on the pre-treatment of palm oil mill effluent." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/642.

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The feasibility of using hydrochloric acid (HCl), heat, dilution and magnetic stirring for the pre-treatment of palm oil mill Effluent (POME) before the primary anaerobic treatment was investigated in this study. The theoretical background of oily water emulsion which is the characteristic of POME was reviewed. A range of experiments was performed on samples made up of different combinations of the three major components of POME namely, palm oil, solid from decanter and water. The results suggest that the development of a pre-treatment system to remove the 0.5- 1.2% residue oil and 3-4% solid

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27

Lopez, Edgar Alexander Lopez. "AVALIAÇÃO DA APLICAÇÃO SÔNICA DE RESINA INFILTRANTE EM ESMALTE DENTÁRIO SUBMETIDO A PROCESSO DE DESMINERALIZAÇÃO." Universidade Estadual de Ponta Grossa, 2016. http://tede2.uepg.br/jspui/handle/prefix/2367.

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Submitted by Angela Maria de Oliveira (amolivei@uepg.br) on 2017-10-03T19:13:13Z No. of bitstreams: 1 Edgar Alexander.pdf: 3020793 bytes, checksum: e50e53f08619f0c34af508f6ed90bc22 (MD5)<br>Made available in DSpace on 2017-10-03T19:13:13Z (GMT). No. of bitstreams: 1 Edgar Alexander.pdf: 3020793 bytes, checksum: e50e53f08619f0c34af508f6ed90bc22 (MD5) Previous issue date: 2016-03-02<br>O objetivo desta pesquisa foi avaliar a aplicação sônica de resina infiltrante em esmalte dentário submetido a processo de desmineralização. Foram utilizados 48 dentes molares humanos, sendo delimitada uma área

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28

Holms, Carla Augusto Thomaz de Aquino. "Avaliação da resposta inflamatória pulmonar de suínos submetidos a lesão pulmonar aguda induzida por ácido clorídrico e tratados com solução salina hipertônica." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/5/5152/tde-22012013-174923/.

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INTRODUÇÃO: A lesão pulmonar aguda (LPA) decorrente de aspiração do conteúdo gástrico é freqüente em pacientes com nível de consciência comprometido e depressão dos reflexos de vias aéreas. A solução salina hipertônica (HS) a 7,5% apresenta resultados ainda controversos quanto ao seu potencial efeito protetor na resposta inflamatória pulmonar. OBJETIVOS: Este estudo teve como objetivo avaliar o potencial efeito antiinflamatório da solução salina hipertônica no modelo experimental de lesão pulmonar por aspiração de ácido clorídrico (HCl). MÉTODOS: Foram utilizados 32 suínos (n=32; 8/grupo) divi

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SILVA, JOSÉ P. "Incorporação de radionuclídeos em nanotubos naturais ativados." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26620.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2016-08-26T13:45:52Z No. of bitstreams: 0<br>Made available in DSpace on 2016-08-26T13:45:52Z (GMT). No. of bitstreams: 0<br>Os nanotubos naturais da paligorsquita, por apresentarem propriedades físicas e químicas específicas, têm potencial uso como nano sorventes e matrizes para imobilização, retenção, e solidificação de radionuclídeos presentes em efluentes nucleares. No processo de desenvolvimento de materiais com propriedades de sorção visando a incorporação e imobilização de radionuclídeos, as etapas mais importantes são a

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Smith, Fiona Elizabeth. "Observation of the infrared spectrum of the doubly charged molecular ion D'3'7Cl'2'+." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323488.

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Laveissiere, Bernard. "Contribution a l'etude de la corrosion du fer en milieu chlorure." Clermont-Ferrand 2, 1987. http://www.theses.fr/1987CLF2E397.

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Analyse des interactions entre les especes cathodiques adsorbees et la reaction anodique dans le domaines des potentiels proches du potentiel de corrosion. Mise en evidence du caractere inhibiteur de quelques composes de la famille des sels de phosphonium

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Oliveira, Tatiane Alexandre de. "Comparação da ação de princípios ativos incorporados a um enxaguatório bucal na prevenção/controle da erosão dental." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/23/23134/tde-15012013-170146/.

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O objetivo deste estudo foi comparar, in vitro, empregando diferentes métodos de análise, a ação de superfície de alguns enxaguatórios bucais experimentais para a prevenção/controle da erosão dental causada por ácido clorídrico incorporando-se diferentes princípios ativos. Um enxaguatório bucal experimental sem aditivos, um enxaguatório para erosão disponível comercialmente, Elmex Erosion® (AmF/NaF/SnCl2) (ELM), e um enxaguatórios acrescidos de 4 diferentes aditivos foram testados quanto a sua capacidade de proteção contra erosão em um modelo de erosão-remineralização, onde as variáveis respos

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Del, Negro André 1976. "Modelo experimental de simulação de tabagismo e refluxos faringolaríngeo, gastro-esofágico e cancinogênese em ratos Wistar." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311393.

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Orientadores: Nelson Adami Andreollo, Antônio Santos Martins<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas<br>Made available in DSpace on 2018-08-18T16:33:01Z (GMT). No. of bitstreams: 1 DelNegro_Andre_D.pdf: 3471885 bytes, checksum: 25c2d3d8936970ea8a29e110268320a4 (MD5) Previous issue date: 2011<br>Resumo: Tabagismo e etilismo são os dois fatores mais importantes na gênese do carcinoma espinocelular do trato aero-digestivo superior (TADS). Outros fatores de risco podem estar envolvidos, como o refluxo faringolaríngeo (RFL). O objetivo desta pesquisa

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Matos, Ricardo Tedeschi. ""Avaliação do espaço intercelular dilatado da mucosa esofágica antes e após infunsão de ácido clorídrico: marcador da doença do refluxo gastroesofágico (DRGE)"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5147/tde-14092006-153912/.

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O objetivo foi evidenciar a presença do espaço intercelular dilatado do epitélio esofágico após a infusão de ácido clorídrico (HCl) à 0,1N comparando com a infusão de soro fisiológico (SF) em pacientes sem sintomas típicos da DRGE com mucosa esofágica normal e compará-los com os de sintomas típicos e esofagite erosiva. Foram entrevistados e realizaram o exame de endoscopia digestiva alta 60 pacientes destes, 29 foram incluídos no estudo sendo 18 com esôfago normal (9 foram infundidos SF e 9 HCl) e 11 com esofagite erosiva (6 foram infundidos SF e 5 HCl) e foram realizados 4 biópsias da mucosa

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Le, Canut Jean-Marc. "Impédance faradique en présence d'un couplage électrosorption-désorption, transport de matière : cas de l'électrodissolution du cuivre." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0016.

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Le mecanisme de la reaction d'electrodissolution du cuivre en milieu hcl, aux faibles densites de courant, implique simultanement des reactions en phase adsorbee et le transport d'especes electroactives volumiques. La structure du mecanisme est telle que les flux interfaciaux de ces especes electroactives ne sont pas, en regime dynamique, proportionnels a la densite de courant faradique. Les impedances de concentration ne sont pas, dans ce cas, de simples impedances de diffusion convection et le graphe de l'impedance faradique peut presenter une boucle basse frequence d'une forme plus compliqu

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Chokalingam, Kumar. "Poly (Allylamine Hydrochloride) and Poly (Acrylic Acid) Multilayers for Gas Separation." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187019230.

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Beau, Bénédicte. "Relaxation nucléaire dans un polymère conducteur à comportement métallique, la polyaniline." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10240.

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Ce memoire est consacre a l'etude des proprietes de transport electronique d'un polymere conducteur a comportement quasi-metallique, la polyaniline. La methode de dynamique de spin, basee sur des techniques de resonance magnetique nucleaire, constitue un moyen de s'affranchir d'une partie du desordre present dans les polymeres. Elle consiste a etudier le mouvement des porteurs de charge (polarons) par l'intermediaire des spins nucleaires fixes #1h disposes le long des chaines polymeres. La mesure de leur temps de relaxation spin-reseau, t#1, en fonction de la frequence, donne acces a la densit

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38

Jugl, Adam. "Studium interakcí hyaluronan-aminokyseliny." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2016. http://www.nusl.cz/ntk/nusl-240595.

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The master´s thesis deals with the study of the interaction between the polysaccharide hyaluronan of diffrerent molecular weights with the amino acids arginine, lysine, arginine hydrochloride and 6-aminocaproic acid. They are expected interaction between carboxyl groups of hyaluronan and amino groups of amino acids. These interactions were investigated by using ultrasonic spectroscopy, DLS, measuring pH and conductivity. Obtained results were compared with sodium polystyrene sulfonate. With ultrasonic spectroscopy was observed a change of concentration inkrement for titration of amino acid to

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Rannou, Patrice. "Poly(aniline) : synthèse, mise en oeuvre et vieillissement." Université Joseph Fourier (Grenoble ; 1971-2015), 1998. http://www.theses.fr/1998GRE10080.

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Ce travail est consacré à la synthèse, la mise en œuvre et le vieillissement d'un polymère conducteur (pc) : la polyaniline (pani). Deux morphologies ont été étudiées : des poudres divisées de pani dopee par l'acide chlorhydrique (pani-hci) et des films de pani dopee par l'acide camphre sulfonique (csa) obtenus par l'évaporation de solutions dans le m-cresol. Dans une première partie, nous présentons la synthèse chimique basse température par voie oxydante de la pani. Le contrôle des paramètres de synthèse a permis de préciser le mécanisme de polymérisation et d'obtenir des polymères de masse

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40

Arrowsmith, Joseph Edmund. "The neuroprotective effects of remacide hydrochloride in patients undergoing elective coronary artery bypass surgery." Thesis, University of London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274913.

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Marumo, Cristina Keiko. "Efeitos cardiovasculares das manobras de recrutamento alveolar durante lesão pulmonar aguda por ácido clorídrico: estudo experimental em suínos." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/5/5152/tde-24012008-112723/.

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INTRODUÇÃO: Colapso alveolar é achado freqüente em lesão pulmonar aguda (LPA), levando ao aumento do shunt intrapulmonar e hipoxemia. Estratégias de tratamento atuais visam o recrutamento alveolar para melhora das trocas gasosas. Embora as manobras de recrutamento alveolar (MRA) sejam objetos de investigação nas últimas duas décadas, seu uso tem se tornado mais freqüente para o tratamento de pacientes com LPA. Volumes pulmonares e pressões pleurais elevados associados a MRA podem afetar a resistência vascular pulmonar e o trabalho cardíaco negativamente. Porém, o benefício da MRA na oxigenação

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Alsaab, Hashem O. "Evaluation of the Percutaneous Absorption of Chlorpromazine Hydrochloride from PLO Gels Across Porcine Ear and Human Abdominal Skin." University of Toledo Health Science Campus / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=mco1435670713.

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Repová, Romana. "Studium interakce záporně nabitých vezikulárních systémů s polykationty." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2020. http://www.nusl.cz/ntk/nusl-414178.

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This diploma thesis deals with the preparation and characterization of negatively charged catanionic vesicular systems and their combination with selected polycations. The catanionic vesicular system was prepared by mixing of two oppositely charged surfactants SDS and CTAB. The negative charge as well as the stability of the vesicular system was provided by the incorporation of phosphatidic acid. Polycations, DEAE and TMC, have been selected for use in a pharmaceutical applications. Characterization of the prepared systems was performed by measuring DLS and ELS. The results indicate that we we

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Santos, Carlos Alberto Andrade Serra dos. "Estudo de espalhamento Raman em cristais de L-tirosina hidroclorídrica submetidos a altas pressões." Universidade Federal do Maranhão, 2017. http://tedebc.ufma.br:8080/jspui/handle/tede/1754.

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Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2017-07-21T18:04:23Z No. of bitstreams: 1 CarlosSantos.pdf: 7721249 bytes, checksum: ee220ca2d9a3d156b8c575c28854ffea (MD5)<br>Made available in DSpace on 2017-07-21T18:04:23Z (GMT). No. of bitstreams: 1 CarlosSantos.pdf: 7721249 bytes, checksum: ee220ca2d9a3d156b8c575c28854ffea (MD5) Previous issue date: 2017-02-28<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Fundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão (FAPEMA)<br>In this work L-tyrosine hydrochloride crystal

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Slobodan, Gigov. "Uticaj apigenina i natrijum-deoksiholata na biološku raspoloživost raloksifena." Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2017. http://www.cris.uns.ac.rs/record.jsf?recordId=104332&source=NDLTD&language=en.

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Raloksifen je predstavnik selektivnih modulatora estrogenih receptora koji se koristi u terapiji osteoporoze i invazivnog oblika raka dojke u postmenopauzi. Raloksifen se relativno dobro resorbuje iz gastrointestinalnog trakta, ali pri prvom prolasku kroz jetru podleže biotransformaciji u značajnom procentu, &scaron;to je uzrok njegove niske biolo&scaron;ke raspoloživosti. Bioraspoloživost kod ljudi iznosi 2%, a kod Wistar pacova 39%. Različite supstance se koriste da bi se pobolj&scaron;ala bioraspoloživost lekova. Žučne kiseline, kao &scaron;to je deoksiholna kiselina, omogućavaju bolji prol

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Тарко, Я. Б. "Технології та технічні засоби інтенсифікації нафтогазовидобутку на основі термогідродинамічних методів впливу на привибійну зону пластів". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2005. http://elar.nung.edu.ua/handle/123456789/4069.

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Дисертація присвячена дослідженню гідродинамічних і термохімічних процесів, які відбуваються у свердловині та привибійній зоні пласта та розробці нових методів інтенсифікації нафтогазовидобутку. Розроблено математичні моделі процесів кольматації привибійної зони під час первинного розкриття пласта, відновлення вибійного тиску і його розподілу в пласті в процесі циклічного депресійно-репресійного впливу, витіснення рідини з свердловини стисненим газом і водогазовими подушками. Створено нові технології та технічні засоби гідроімпульсного впливу на привибійну зону пластів. Проведено теоретичні

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chou, chien yi, and 周建毅. "Corrosion inhibition of Steel in hydrochloric acid by Phenylacetylene derivatives." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/72964474395990933106.

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碩士<br>國立中央大學<br>機械工程研究所<br>96<br>The corrosion inhibition of low steel in 2M hydrochloric acid at 90℃ by derivatives of phenylacetylene, such as phenylacetylene (PE), p-Tolyacetylene (PEC), 4-fluorophenylacetylene (PEF), 4-chlorophenylacetylene (PECl) and 4-bromophenylacetylene (PEBr) has been investigated. The corrosion rate of the steel was estimated by weight loss measurement, linear polarization resistance, Tafel extrapolation and electrochemical impedance spectroscopy. The surface morphology was observed using scanning electron microscope (SEM). The surface film was analyzed with Fourier-

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Lin, Chun-yi, and 林峻毅. "The Preparation Of Superhydrophobic Film On Aluminum Using Hydrochloric Acid And Myristic Acid Simultaneously." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/684ryz.

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碩士<br>大同大學<br>化學工程學系(所)<br>102<br>In order to save more experimental time, do not adopt the anodic process to produce use synchronously rough aluminum surface, whereas we make of “etching” and “modification” to proceed experiments so as super-hydrophobic surface. The experimental method includes “Surface modification”, ”first adaptation then modification”, “Polishing then modification”. 6 groups of specimens are measure separately to examine the efficiencies. From the result, it is found that “limit adaptation then modification “ produces the best efficiency to offer the best super-hydrophobic

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Chiou, Shin-Jhy, and 邱新智. "Studies on Hydrochloric Acid Environment Corrosion and Protectionof Carbon Steel Materials." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/16550126856781500634.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程所<br>92<br>Studies on Hydrochloric Acid Environment Corrosion and Protection of Carbon Steel Materials ABSTRACT Taiwan is located in a subtropical area﹒Owing to the relatively high temperature﹐humidity and salt content,Taiwan is subject to a corrosive environment﹒Adding the industrial pollution that gets more and more serious﹐the corrosion of the materials becomes progressively worse﹒In the petrochemical industrial regions particularly﹐the corrosiion of the metallic materials is much worse than that in other regions﹒Coating is adopted for most anti-corrosion mainte

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Apua, Momboyo Clotilde. "An investigation into hydrochloric acid leaching of low grade gold-bearing material and oxidized cobalt-copper ores." Thesis, 2012. http://hdl.handle.net/10210/5008.

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M.Tech.<br>The efficiency of hydrochloric acid leaching of gold from low grade gold-bearing material has been investigated in the presence of sodium hypochlorite (NaOCl) to produce in situ chlorine gas which is an oxidizing agent able to oxidize gold metal to gold soluble forms: Au+ and Au3+. The effect of concentrations of HCl, NaOCl, and mixtures HCl + NaOCl was sought. An investigation on chlorine species was conducted to predict their stability areas. The reactions involved and their mechanisms were established. Prior to leaching, the feed was subjected to fire assay, Atomic absorption spe

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