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Dissertations / Theses on the topic 'Le sensor au pH acide'

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Published: 4 June 2021
Last updated: 6 February 2022

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1

Best, Quinn Adams. "XANTHENE AND SILICON ANALOGS OF XANTHENE FLUOROPHORES AS CHEMICAL SENSORS FOR pH AND HYPOCHLOROUS ACID." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/dissertations/662.

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Chemical sensors capable of detecting a specific atom or molecule under various conditions have been utilized in biological and environmental analyses. Fluorescence based sensors are particularly advantageous in these studies because of their high sensitivity, relative ease in handling, and low technical costs. This dissertation focuses on the detection of two analytes, H+ and hypochlorous acid, which are of interest in biology because the presence of abnormal quantities of these analytes may be indicative of disease. We have established a new platform for which sensitive changes in various
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2

Yezid, Hocine. "Mécanismes d'interaction de la protéine Tat du VIH-1 avec les membranes plasmique et endosomale." Montpellier 2, 2009. http://www.theses.fr/2009MON20081.

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La protéine transactivatrice Tat joue un rôle crucial dans la multiplication du VIH-1. Elle a un rôle établi dans la transcription virale. Elle possède de plus la propriété d'être sécrétée par les cellules infectées. Elle peut ensuite pénétrer par endocytose dans les cellules non-infectées, où elle va provoquer divers dysfonctionnements. Dans ce travail, nous avons mis en évidence que Tat est sécrétée directement à travers la membrane plasmique en utilisant un mécanisme de sécrétion non conventionnel. Nous avons montré que le phosphatidylinositol-4,5-bisphosphate, PI(4,5)P2, est responsable du
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3

Pahlke, Denis. "Synthesis, characterisation and sensor-functionalisation of transmembrane β-peptides". Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://hdl.handle.net/21.11130/00-1735-0000-0003-C180-1.

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4

Deng, Kangfa, Gerald Gerlach, and Margarita Guenther. "Force-compensated hydrogel-based pH sensor." SPIE, 2015. https://tud.qucosa.de/id/qucosa%3A35185.

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This paper presents the design, simulation, assembly and testing of a force-compensated hydrogel-based pH sensor. In the conventional deflection method, a piezoresistive pressure sensor is used as a chemical-mechanical-electronic transducer to measure the volume change of a pH-sensitive hydrogel. In this compensation method, the pH-sensitive hydrogel keeps its volume constant during the whole measuring process, independent of applied pH value. In order to maintain a balanced state, an additional thermal actuator is integrated into the close-loop sensor system with higher precision and faster d
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5

Aziz, Shahid. "A solid state pH sensor for RNA detection." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/6954.

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Electrochemical biosensors have long been used for measuring pH changes in complex biological samples. This research work involves investigating iridium sensors as a potential tool for detecting viral RNA by means of pH sensing during transcription mediated amplification (TMA). The iridium oxide film was formed on gold wire by electrochemical deposition. When complementary DNA/RNA bases are hybridized, they release a pyrophosphate molecule which is eventually hydrolyzed, contributing to the pH change during the TMA reaction which in turn is measured in voltage (mV) by the iridium sensor. First
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6

Weidgans, Bernhard M. "New fluorescent optical pH sensors with minimal effects of ionic strength." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=97274679X.

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7

Yang, Yatao. "Development of a distributed optical fibre pH sensor system." Thesis, Glasgow Caledonian University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321322.

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8

Trinh, Quang Thong. "Hydrogel based piezoresistive pH sensors." Dresden TUDpress, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2860048&prov=M&dok_var=1&dok_ext=htm.

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9

Seidel, Matthew Paul. "A SENSOR FOR IN SITU SPECTROPHOTOMETRIC MEASUREMENTS OF SEAWATER pH." The University of Montana, 2007. http://etd.lib.umt.edu/theses/available/etd-03282007-162542/.

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The design of small autonomous sensors for measuring parameters in the ocean has been an important area of research. The development of a seawater pH sensor which is highly accurate and precise has unlimited potential for oceanographic studies. A seawater instrument for pH measurements was built based upon the design of the SAMI-pH for freshwater. The performance of the freshwater design in a seawater setting was unknown. During a cruise in the Labrador Sea the first design of the SAMI-pH for seawater based upon the previous instrument design was tested. The results showed promise but indicate
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10

III, Pedro Rodrigues de Almeida. "Desenvolvimento de um sensor de pH com base em grafeno." Universidade Federal de Minas Gerais, 2014. http://hdl.handle.net/1843/BUOS-9LFHKZ.

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Since its discovery in 2004 graphene is seen as a great material, to be used in new electronic devices, because of its special properties such as high electron mobility, excellent flexibility and mechanical resistance, biocompatibility and large surface area to volume ratio. In particular, these last two properties have motivated the use of graphene as the basis for chemical and biological sensors [1]. In this dissertation, we present a study of a device based on graphene that acts as a chemical sensors, more specifically as a pH sensor. The fabrication of this sensor and the electrical measur
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11

Silva, Guilherme de Oliveira. "Biossensor de ureia utilizando dispositivo pH-EGFET." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-19112013-115103/.

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Sensores são dispositivos capazes de captar um determinado sinal físico -químico do meio e converte-lo num sinal elétrico mensurável por meio de um transdutor. Biossensor é um sensor que tem como parte funcional um receptor biológico específico a determinado analito alvo. Os sinais físico-químicos experimentados por estes dispositivos são convertidos em sinais elétricos de magnitude proporcional à concentração de um ou mais compostos químicos. Neste trabalho, foi construído um sensor de pH utilizando filmes finos comerciais de óxido de estanho dopado com flúor (FTO) como receptor a
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12

Zhang, Wenzhong. "Yttria stabilised zirconia pH sensor development for high temperature aqueous environments." Thesis, University of Newcastle Upon Tyne, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402271.

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13

JUNIOR, MANOEL FELICIANO DA SILVA. "FIBER OPTIC PH SENSOR FOR PIPELINES AND OIL WELL PERMANENT MONITORING." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2004. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4746@1.

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PETRÓLEO BRASILEIRO S. A.<br>A detecção da corrosão metálica em estruturas complexas e de difícil acesso apresenta dificuldades que até o presente não foram satisfatoriamente contornadas nos diversos setores industriais. Os sensores para avaliação da corrosão metálica baseiamse normalmente em corpos de sacrifício ou na monitoração da reação catódica que ocorre junto com o processo de oxidação e redução da corrosão. Condições ambientais, como temperatura, pressão, vazão, composição química e pH, têm influência direta sobre a agressividade do meio e seu conhecimento é fundamental para a
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14

Beltrami, Mateus. "Desenvolvimento e construção de sensor magnetoelástico de pH com eletrônica portátil." reponame:Repositório Institucional da UCS, 2016. https://repositorio.ucs.br/handle/11338/1259.

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Sensores com material magnetoelástico vêm sendo desenvolvidos pois possibilitam medidas sem contato de fios (wireless). Apresentam variação da frequência de ressonância (redução) quando submetidos a um carregamento de massa. Podem ser empregados para detecção e determinação de grandezas físicas através de instrumentação remota que vem se tornando cada vez mais importante. As grandezas podem ser desde a quantificação de pH até a detecção da presença de microrganismos. Neste trabalho descrevemos um sistema de detecção rápida e wireless de grandezas físicas como pH e a presença de microorganismo
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15

Zhang, Zhehao. "Palladium Voltammetric Microelectrode as pH Sensor in an Micro Electrochemical Cell." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1496862043661465.

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16

Niyompan, Anuson. "Fast-ion conducting glass and glass-ceramics for the pH sensor." Thesis, University of Warwick, 2002. http://wrap.warwick.ac.uk/98497/.

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Fast-ion conducting glasses of the compositions Na1+xM2-x/3SixP3-xOI2-2x3 (0≤ x ≤3), where M = Zr, Ti, were studied to determine their structural arrangement, physical properties and ionic conductivity. Glass samples were prepared using the conventional melt-quench method in the melting temperature range, 1550 °C to 1650 °C. Glass products were characterised by XRD, DTA, dilatometry and density measurement. Solid state MAS NMR experiments of three accessible nuclei, 23Na, 29Si and 31P were used to determine short-range order arrangement in the glasses. XRD confirms the amorphicity of glasses f
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17

Rolland, Stéphane. "Étude de la régulation de la production d'une protéase acide chez un champignon phytopathogène." Lyon 1, 2004. http://www.theses.fr/2004LYO10203.

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Lors du processus infectieux, les champignons phytopathogènes sécrètent de nombreuses enzymes lyptiques permettant de coloniser les tissus de l'hôte et de générer des nutriments facilement assimilables. La production de ces enzymes est soumise à une régulation complexe intégrant des signaux liés au pH du milieu extérieur, aux nutriments disponibles et à la présence de l'hôte. Afin d'élucider les mécanismes moléculaires de transmission de ces signaux, la régulation de la production de la potéase acide Acp 1 de Botrytis cinerea et Sclerotinia sclerotiorum a été choisie comme modèle. Chez ces deu
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18

Szutkowska, Marta. "Mécanismes Moléculaires par lesquels le pH acide augmente la stabilité de l'ARNm du cotransporteur BSC1." Paris 7, 2007. http://www.theses.fr/2007PA077238.

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BSC1 est le transporteur majeur de NH4+ dans la branche large ascendante de l'anse de Henle (MTAL). Il joue un rôle important dans la régulation rénale du bilan acido-basique de l'organisme. L'acidose métabolique stimule BSC1 en augmentant l'abondance de son ARNm et de sa protéine. Le pH acide augmente la stabilité de l'ARNm du BSC1 en agissant sur sa partie 3' non traduite (3'-UTR). ζ-cristalline (ζ-cris) et HuR sont deux protéines qui stabilisent les ARNm en se fixant sur des motifs AUUUA (AREs). Notre projet était de déterminer un rôle éventuel de ζ-cris et de HuR dans l'augmentation de la
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19

Januario, Netto Eden. "Sistema com sensor de fibra optica para a medição de ph gastrico." [s.n.], 1994. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260391.

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Orientador: Eduardo Tavares Costa, Wang Biseng<br>Tese. (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica<br>Made available in DSpace on 2018-07-20T02:13:26Z (GMT). No. of bitstreams: 1 JanuarioNetto_Eden_D.pdf: 9646334 bytes, checksum: 5357b3dfcc75861a9066fd6c9ac1a5c9 (MD5) Previous issue date: 1994<br>Resumo: A construção e o desempenho de um sistema com sensor de fibra óptica para medição do pH numa faixa ampla é apresentada. A construção do sensor é baseada no emprego de dois indicadores colorimétricos de pH, fornecendo uma sensibilidade na faixa de pH 1 a
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20

Raoufi, N. "Development of wavelength dependent pH optical sensor using Layer-by-Layer technique." Thesis, City University London, 2014. http://openaccess.city.ac.uk/3668/.

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Stable and reliable operation of an optical sensor for pH monitoring is important for many industrial applications. This dissertation reports a series of studies on the development of novel and highly sensitive fibre optic sensors which are based on wavelength, instead of intensity changes and the development of thin film optical fibre working combinations for effectively enhancing the durability and value of the sensor probe. Several novel optical fibre sensors were fabricated and evaluated in this work. In order to measure the pH of a solution using optical methods, the sensor probes were pr
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21

Liaud, Nadege. "Production d' acides organiques à ph acide par des champignons filamenteux : etude de la biodiversité fongique et production d' acide lactique par Aspergillus brasiliensis." Thesis, Aix-Marseille, 2015. http://www.theses.fr/2015AIXM4010.

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L’objectif de cette thèse est de développer une nouvelle souche de champignon filamenteux pour la production d’acide lactique. Pour répondre à cet objectif, nous avons tout d’abord d’exploré la biodiversité fongique à la recherche de champignons filamenteux capables de produire de l’acide lactique ou présentant de bonnes prédispositions pour la production d’acides organiques sans neutralisation du pH. Grâce à ce criblage, une souche sauvage d’Aspergillus brasiliensis a été sélectionnée et utilisée pour construire, grâce à l’ingénieure métabolique, les premières souches d’Aspergillus capables d
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22

Piot, Benoît. "Monitoring de la variation du ph intratumoral in vivo chez la souris. Application a l'etude des modifications de la fluorescence de la protoporphyrine ix induite par l'acide delta aminolevulinique, en fonction du ph (doctorat : chimie biologique photochimiotherapie)." Nantes, 2000. http://www.theses.fr/2000NANT19VS.

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23

Le, Lay Julien. "Compréhension des mécanismes impliqués dans l’activité réductrice et dans les adaptations métaboliques à pH acide de Bacillus cereus : implication des thiols exofaciaux." Thesis, Avignon, 2014. http://www.theses.fr/2015AVIG0331/document.

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Bacillus cereus est une bactérie à coloration de Gram positive capable de s'adapter à un grand nombre de stress tels que les bas pH ou les bas potentiels d'oxydo-réduction (Eh). Si certains des mécanismes d'adaptation de B. cereus à chacun de ces stress sont connus, les intéractions entre ces deux facteurs sur la physiologie bactérienne n'ont jamais été étudiés. Nous nous sommes donc intéressés à l'effet des variations de Eh sur la résistance au stress acide de B. cereus, aux adaptations métaboliques de B. cereus à pH acide et à l'intéraction de cette bactérie avec son environnement redox. Les
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24

Chan, Leon Cong Zhi. "Miniaturisation of pH holographic sensors for nano-bioreactors." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/268167.

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Monitoring and controlling pH is of utmost importance in bioprocessing as it directly affects product yield and quality. Multiplexed experiments can be performed in nanobioreactors for optimisation of yield and cell heterogeneity in a relatively quick and inexpensive manner. In this thesis, a pH holographic sensor (holosensor) is miniaturised to 3.11 nL in volume and integrated into a PDMS-glass microfluidic chip for monitoring the growth of Lactobacillus casei Shirota. Although other established methods for monitoring cell cultures can be utilised, miniaturised holosensors enable real-time an
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25

Yin, Tianya. "A lab-on-chip sensor for in situ spectrophotometric measurement of seawater pH." Thesis, University of Southampton, 2017. https://eprints.soton.ac.uk/421151/.

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Accurate and high precision measurements of seawater pH are important for monitoring of ocean acidification and to fully understand the dynamics of the oceanic carbonate system. An optimisation and field testing of an in situ pH sensor, based on lab-on-chip technology, offers potential to address to this problem. The sensor employs a spectrophotometric method, with high precision (0.001 pH units) and accuracy (0.005 pH units) within the range of a certified TRIS buffer. In addition, it is a compact miniaturised field analyser that consumes minimal power (3 W) and uses low reagent consumption (
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26

Tariq, Sonia. "Developing an optical sensor for the visualisation of pH gradients in marine sediments." Thesis, University of East Anglia, 2015. https://ueaeprints.uea.ac.uk/56901/.

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Many important biogeochemical processes that occur in marine sediments are intimately linked to pH dependent processes, but surprisingly little is known about the details of the pH profiles generated. This is mainly due to the difficulty of obtaining samples and measuring representative profiles. Such profiles have previously been determined using glass-membrane micro-electrodes, but this is slow and electrodes easily break in harsh sediments (insertion is “blind”). Profiles have also been measured using fluorescent dye-based sensors, but their handling needs special light sources and filters
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27

De, La Garza García Jorge. "Réponse de Brucella microti et Brucella suis au stress acide à pH 4.5 : Approches transcriptomiques et génétiques." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTT067.

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Réponse de Brucella microti et Brucella suis au stress acide à pH 4.5 : Approches transcriptomiques et génétiquesL´espèce atypique Brucella microti, isolée de la faune sauvage et proche de l´espèce classique et zoonotique Brucella suis bv. 1 1330, diffère de celle-ci de par sa croissance rapide et sa létalité dans la souris. Ce couple de souches est un modèle d’étude pertinent pour la comparaison des espèces classiques et atypiques de Brucella. Malgré le haut degré d’homologie de leurs séquences génomiques (&gt;99 % d´identité), ces espèces sont phénotypiquement différentes et ont développé de
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28

Hommais, Florence. "Contrôle Collectif de l'Expression des Gènes en Réponse au pH Acide chez les Bactéries à Gram Négatif." Paris 7, 2001. http://www.theses.fr/2001PA077087.

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29

Recco, Lucas Custódio [UNESP]. "Produção de Sensor Polimérico reforçado com Nanotubos de Carbono." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144674.

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Submitted by Lucas Custodio Recco null (recco_natacao@yahoo.com.br) on 2016-11-16T18:05:08Z No. of bitstreams: 1 Dissertação tese final 1.pdf: 2637411 bytes, checksum: a84a13ce10364272026f9558f59c65df (MD5)<br>Approved for entry into archive by Felipe Augusto Arakaki (arakaki@reitoria.unesp.br) on 2016-11-23T12:35:19Z (GMT) No. of bitstreams: 1 recco_lc_me_bot.pdf: 2637411 bytes, checksum: a84a13ce10364272026f9558f59c65df (MD5)<br>Made available in DSpace on 2016-11-23T12:35:20Z (GMT). No. of bitstreams: 1 recco_lc_me_bot.pdf: 2637411 bytes, checksum: a84a13ce10364272026f9558f59c65df (MD5)
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Arla, David. "Acides naphténiques hydrates de gaz : influence de l'interface eau/huile sur les propriétés dispersantes d'un brut acide." Pau, 2006. http://www.theses.fr/2006PAUU3002.

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Actuellement, les compagnies pétrolières sont amenées à exploiter des gisements de bruts situés à des profondeurs sous-marines de plus en plus importantes. Dans ces conditions de production (hautes pressions et basses températures), se pose le problème du bouchage des conduites pétrolières par les hydrates de gaz, composés cristallins constitués d'eau et de gaz. Il a été montré que certains bruts asphalténiques forment des émulsions eau dans huile (E/H) stables sur plusieurs mois et évitent la formation des bouchons d'hydrate. Dans le cadre de cette thèse, les propriétés "anti-hydrates" d'un b
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31

Shi, Lifang. "Luminescent Quantum dots for Cellular Analysis." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/597.

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Luminescent quantum dots have attracted great interest in recent years among biological researchers since they provide solutions to problems associated with use of organic fluorophores in cellular studies. Quantum dots show high photostability, high emission quantum yield, narrow and symmetric emission peaks and size-dependent wavelength tunability. The objective of my PhD studies was to develop CdSe/ZnS quantum dot-based probes and utilize them in cellular assays. The first phase of the work was to develop luminescent quantum dot fluorescence resonance energy transfer (FRET) based probes for
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32

Lee, Seung Joon. "Dissolved oxygen and pH monitoring within cell culture media using a hydrogel microarray sensor." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1046.

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33

Frare, Rita de Cassia. "Estudo prospectivo comparativo de duas modalidades de posicionamento do sensor de pH-metria esofágica prolongada: por manometria esofágica e pela viragem do pH." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/5/5154/tde-29012009-132317/.

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Por padronização aceita internacionalmente, posiciona-se o sensor distal de pH-metria esofágica a 5 cm acima da borda superior do esfíncter inferior do esôfago, identificado por manometria esofágica. Porém, vários autores sugerem técnicas alternativas de posicionamento que prescindem da manometria; dentre essas, destaca-se a da viragem do pH. Esse tema é controverso: alguns autores consideram a técnica da viragem confiável, outros afirmam que não é. Considerando-se a polêmica existente e o pequeno número de trabalhos prospectivos com amostra e metodologia adequadas, idealizamos o presente estu
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34

MURRY, BRELIER ANNE. "Mecanismes de repliement de la sous-unite #2 de la tryptophane synthase d'escherichia coli denaturee a ph acide." Paris 7, 1989. http://www.theses.fr/1989PA077164.

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La tryptophane synthase d'e. Coli est une enzyme comprenant une sousunite 2, dont le mecanisme de repliement moleculaire est etudie par denaturation-renaturation acide. Les proprietes physico-chimiques et immunochimiques de la proteine native et renaturee sont etudiees. L'utilisation d'anticorps monoclonaux permet d'elucider les mecanismes moleculaires de l'inhibition de l'activite enzymatique
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35

Otto, Jessica Eileen. "Development and characterization of carbon nanotubes for sensor applications." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001112.

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36

Touati, Eliette. "La Phosphatase acide de pH optimum 2.5 d'Escherichia coli un système pour l'étude des effets négatifs de l'AMP cyclique /." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb376015856.

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37

Touati, Eliette. "La phosphatase acide de ph optimum 2,5 d'escherichia coli : un systeme pour l'etude des effets negatifs de l'amp cyclique." Paris 6, 1986. http://www.theses.fr/1986PA066531.

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38

Mello, Hugo José Nogueira Pedroza Dias. "Sensores químicos com transdução microeletrônica e ótica utilizando polianilina nanoestruturada." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-12112014-151659/.

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A área de sensores é uma das mais importantes do mundo tecnológico e científico moderno. O monitoramento contínuo de processos através de variáveis de diversas naturezas está presente em áreas como indústria, agricultura, biologia, meio ambiente, e centros de pesquisa. Os sensores químicos de pH fazem parte deste conjunto por analisar um dos parâmetros mais importantes em muitas áreas. Neste trabalho, o uso de filmes finos de polianilina (PANI) eletrodepositada em sensores de pH foi estudado. Duas configurações do sensor EGFET (Extended Gate Field-Effect Transistor) foram estudadas: o sensor S
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39

Nentvichová, Aneta. "Jednorázový sensor amoniaku pro inteligentní obaly." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-449761.

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This diploma thesis is focused on the problematic of the smart packaging and deals with the preparation of disposable ammonia sensors/indicators and the subsequent color measurement of prepared sensors/indicators using the CIE L* a* b* color space. The theoretical part of the diploma thesis focuses on active and intelligent packaging, using ammonia sensors/indicators. The emphasis is placed on the main components of the sensor/indicator, i.e., chitosan as a polymer and curcumin as a dye. The theoretical part also includes the problematic of meat degradation, which plays a very important role i
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40

Rerolle, Victoire. "Development and deployment of an in situ sensor for seawater pH based on the spectrophotometric method." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/359137/.

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The uptake of anthropogenic CO2 by the oceans since the onset of the industrial revolution is considered to be a serious challenge to marine ecosystems due to ensuing carbonate chemistry changes (ocean acidification). Furthermore, the CO2 uptake is reducing the ocean’s capacity to absorb future CO2 emissions. In order to follow the changes in the ocean’s carbonate system, high-quality analytical measurements with good spatial and temporal resolution are necessary. The spectrophotometric pH technique is now widely used and capable of the required high-quality measurements. Smaller and more rugg
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41

Graf, Emmanuelle. "Agression biliaire et secrétion acide gastrique : intéret de la mesure simultanée de la différence de potentiel et du ph gastriques." Nantes, 1988. http://www.theses.fr/1988NANT133M.

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42

Benayada, Abbès. "Prévision des réactions d'extraction liquide-liquide dans les solutions concentrées en acide phosphorique à partir des coefficients de solvatation établissement d'un diagramme potentiel-pH généralisé en milieu biphasique acide phosphorique-toluène." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37595878d.

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43

Issachar, Nathalie. "Contribution à l'étude des peaux sensibles et de leurs principales caractéristiques biophysiques." Paris 5, 1998. http://www.theses.fr/1998PA05P634.

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44

Choi, Woo-Hyuck. "Needle-Type Sensor For In Situ 3-D Multi-Analyte Mapping." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1321641570.

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45

Meynadier, Annabelle. "Synthèse ruminale et sécrétion mammaire de l'acide linoléique conjugué (CLA) chez la vache laitière : effets des acides gras polyinsaturés alimentaires et du pH ruminal." Aix-Marseille 3, 2004. http://www.theses.fr/2004AIX30043.

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Le CLA est un acide gras présent dans le lait de vache, qui possède des propriétés diététiques intéressantes chez l'homme. Il est synthétisé dans le rumen par isomérisation de l'acide linoléique (C18:2), et dans la mamelle par désaturation de l'acide trans-vaccénique (C18:1t11), provenant aussi de la biohydrogénation ruminale des acides gras polyinsaturés. De nombreux facteurs peuvent faire varier sa teneur dans le lait de vache, mais seule l'alimentation est de manipulation facile et efficace. Plusieurs expériences ont été réalisées afin de mieux maîtriser l'influence de trois grands facteurs
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46

Larsson, Jonathan. "PH-MÄTNING I PAPPERSPRODUKTION : En studie i optimeringar av elektriska mätsystem." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-184577.

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Den fundamentala principen för tillverkning av papper är inte en särskilt komplicerad sådan. Men för att pappret skall erhålla specifika egenskaper blir processen alltmer komplicerad. Bland annat tillsätts olika typer av kemikalier och processen övervakas ständigt av olika system. Ett av dessa system mäter pH-halten i pappersmassan. Mätsystemet är dock utsatt för frekventa mätfel vilket medför en felaktig dosering av den koldioxid som används för att sänka pH-värdet. Detta kan slutligen ha negativ påverkan på papprets egenskaper. Syftet bakom arbetet är att mätsystemet ska bidra till en jämn r
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47

Bucher, Marie. "Evaluation rétrospective à la Maternité Régionale de Nancy de la prise en charge du travail de patientes ayant accouché par voie basse spontanée d'un nouveau-né présentant un pH au cordon inférieur ou égal à 7,10." Nancy : Université Henri-Poincaré, 2009. http://www.scd.uhp-nancy.fr/docnum/SCDMED_MESF_2009_BUCHER_MARIE.pdf.

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48

Xu, Kebin. "Design of Phosphate Ion Sensors and an All-Solid pH Sensor and Construction of an Automatic Nutrient Solution Management System for Hydroponics." Kyoto University, 2020. http://hdl.handle.net/2433/253344.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第22508号<br>農博第2412号<br>新制||農||1078(附属図書館)<br>学位論文||R2||N5288(農学部図書室)<br>京都大学大学院農学研究科応用生命科学専攻<br>(主査)教授 加納 健司, 教授 三芳 秀人, 教授 宮川 恒<br>学位規則第4条第1項該当
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FAVREL, CORINNE PIHAN JEAN CLAUDE. "ECOPHYSIOLOGIE DE LA LARVE DE DINOCRAS CEPHALOTES (PLECOPTERE, PERLIDE) EXPOSEE A UN MILIEU ACIDIFIE (PH ACIDE, FAIBLE MINERALISATION ET FORTE CONCENTRATION EN ALUMINIUM) /." [S.l.] : [s.n.], 1998. ftp://ftp.scd.univ-metz.fr/pub/Theses/1998/Favrel.Corinne.SMZ9836.pdf.

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Favrel, Corinne. "Ecophysiologie de la larve de Dinocras cephalotes (Plécoptère, Perlidé) exposée à un milieu acidifié (pH acide, faible minéralisation et forte concentration en aluminium)." Metz, 1998. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1998/Favrel.Corinne.SMZ9836.pdf.

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L'objectif de ce travail est d'étudier l'écophysiologie d'un insecte exposé à un environnement perturbé étudiée l'acidification des cours d'eau, avec comme représentation in situ, le cas du massif vosgien. Du point de vue écophysiologique, la question-clé est d'identifier les perturbations biochimiques et physiologiques qui contribuent à la disparition de cette espèce des cours d'eau acidifiés tout en déterminant les facteurs physico-chimiques du milieu qui sont à l'origine de ces perturbations. En complément, une partie de ce travail est réalisée dans une perspective curative visant à réduire
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