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1

Chinnam, Krishna Chytanya. "Capacitive pH-Sensors using pH sensitive polymer." Thesis, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16279.

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<p><p>This project aims in building a new experimental setup for capacitive measurements of a pH-Sensor. PAA-IOA (Poly Acrylic Acid co – Iso Octyl Acrylate) is the dielectric material over the in-plane interdigitated gold electrodes where PAA IOA acts as an H<sup>+</sup> ion sensing layer. The changes in the capacitance of the sensor when the sensor is dipped into different pH solutions will be quantized accordingly. The dipping setup is built in such a way that the electrodes (containing the polymer layer) can be easily dipped into different pH liquids and to eliminate any contact between the
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2

Backhus, Ralf. "Hygienestatus frisch erlegter Fasanen (Phasianus colchicus, Ph. torquatus, Ph. mongolicus, Ph. versicolor) aus verschiedenen Revieren in Deutschland /." Hannover : [s.n.], 2000. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009476449&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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3

Rueda, Javier Eduardo. "The Ph(t)/Ph(t)/s/c Queueing Model and Approximation." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/9637.

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Time-dependent queueing models are important since most of real-life problems are time-dependent. We develop a numerical approximation algorithm for the mean, variance and higher-order moments of the number of entities in the system at time t for the Ph(t)/Ph(t)/s/c queueing model. This model can be thought as a reparameterization to the G(t)/GI(t)/s. Our approach is to partition the state space into known and identifiable structures, such as the M(t)/M(t)/s/c or M(t)/M(t)/1 queueing models. We then use the Polya-Eggenberger distribution to approximate certain unknown probabilities via a two-m
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Kulkarni, Aditya Umesh. "Approximating Deterministic Changes to Ph(t)/Ph(t)/1/c and Ph(t)/M(t)/s/c Queueing Models." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/33460.

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A deterministic change to a time-varying queueing model is described as either changing the number of entities, the queue capacity, or the number of servers in the system at selected times. We use a surrogate distribution for N(t), the number of entities in the system at time t, to approximate deterministic changes to the Ph(t)/Ph(t)/1/c and the Ph(t)/M(t)/s/c queueing models. We develop a solution technique to minimize the number of state probabilities to be approximated.<br>Master of Science
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5

Rivinoja, A. (Antti). "Golgi pH and glycosylation." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514292699.

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Abstract Glycans, as a part of glycoproteins, glycolipids and other glycoconjugates, are involved in many vital intra- and inter-cellular tasks, such as protein folding and sorting, protein quality control, vesicular trafficking, cell signalling, immunological defence, cell motility and adhesion. Therefore, their correct construction is crucial for the normal functioning of eukaryotic cells and organisms they form. Most cellular glycans are constructed in the Golgi, and abnormalities in their structure may derive, for instance, from alkalinization of the Golgi lumen. In this work we show th
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6

Shin, John J. H. "Lipids as pH biosensors." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45704.

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7

Ighoroje, Ahbor Dolly Awani. "pH and vascular tone." Thesis, University of Glasgow, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293493.

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8

Marshall, Alexander James. "pH-sensitive holographic sensors." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615895.

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9

Barman, Dipti Narayan. "pH sensitive fluorescent sensors." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4972.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 3, 2009) Includes bibliographical references.
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10

Shave, Evan Eric. "pH-biased isoelectric trapping separations." Diss., Texas A&M University, 2005. http://hdl.handle.net/1969.1/4184.

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The classical isoelectric trapping (IET) technique, using the multicompartment electrolyzer (MCE), has been one of the most successful electrophoretic techniques in preparative-scale protein separations. IET is capable of achieving high resolution discrimination of proteins, by isolating proteins in between buffering membranes, in their isoelectric state. However, due to the inherent nature of the IET process, IET has suffered several shortcomings which have limited its applicability. During a classical IET separation, a protein gets closer and closer to its pI value, thus the charge of the pr
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11

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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12

Stephen, John R. "pH regulation in enteric bacteria." Thesis, University of Aberdeen, 1997. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=130919.

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<I>Escherichia coli</I> mutants impaired in growth and survival at low external pH in minimal medium were selected and attempts made to identify the disrupted genes. This study suggested that <I>clpX</I>, encoding a heat-shock induced protease and molecular chaperone, was functional in survival of <I>E. coli </I>at pH 3.3. Promoter probe plasmid libraries of <I>Salmonella typhimurium </I>LT2 DNA were created in <I>E. coli </I>and screened for acid-inducible transcriptional elements, and transcriptionally active fragments of degradative amino-acid decarboxylase genes recovered. Chromosomal gene
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13

Bissell, Richard Alexander. "Luminescent sensing of microenvironmental pH." Thesis, Queen's University Belfast, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335570.

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14

Lynch, Patrick Lionel Mark. "Fluorescent molecular sensors for pH." Thesis, Queen's University Belfast, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317479.

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15

Pye, G. "Gastrointestinal pH and colorectal neoplasia." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381466.

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16

Hynds, Peter John. "Thylakoidal delta pH driven translocation." Thesis, University of Warwick, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325846.

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17

Alabdullah, Sahar Samir Mohammed. "pH measurements in ionic liquids." Thesis, University of Leicester, 2018. http://hdl.handle.net/2381/42877.

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Deep eutectic solvents (DESs) and ionic liquids (ILs) have been significantly used in a variety of applications and one of the challenges is to understand the behaviour of protons in these non-aqueous media. The aim of this study is to investigate pH scales in DESs and ILs and to use the values to understand processes which occur in these media. The first stage of the study involved the development of a spectroscopic analytical method for measuring effective proton activity in IL media. Its pKIn data for bromophenol blue as an indicator were obtained in DESs and ionic liquids and it was found
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Schwartz, Jacob B. (Jacob Benjamin) 1975. "Eliminating intermediate lists in pH." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/86511.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references (p. 89-92).<br>by Jacob B. Schwartz.<br>M.Eng.
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Allison, Stuart M. "Autotrophic nitrification at low pH." Thesis, University of Aberdeen, 1989. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU020926.

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The effect of low pH on autotrophic ammonia oxidation was to be investigated. Autotrophic ammonia oxidisers were successfully isolated from soils of low pH, from sites around Scotland, in an attempt to determine if acid tolerant or acidiphilic strains were responsible for nitrification in these soils. No acid tolerant bacteria were isolated and adaptation, of nitrifiers, to low pH was not found to have occurred during the maintenance of agricultural soil plots at low pH. Carbonate was found to be limiting at low pH, if sodium carbonate, alone, was used to adjust the pH of the medium. The pH mi
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Burton, Simon Alexander Quentric. "Ureolytic nitrification at low pH." Thesis, University of Aberdeen, 1993. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU052828.

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Laboratory studies of ureolytic nitrification were carried out to determine whether the ability of ammonia oxidisers to hydrolyse urea could explain their persistence and activity in acid soils. Ammonia oxidising bacteria were isolated from a number of acid soils, using previously described and novel techniques, and isolates tested for their ability to hydrolyse urea. None of the 17 isolated strains were found to be ureolytic, nor were they active below pH 7, indicating the persistence of neutrophilic ammonia oxidisers in acidic soils. The failure to isolate ureolytic and acidophilic strains s
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Müller, Matthias. "pH-Regulation und Glukosestoffwechsel - Wirkung von Glut1-Überexpression, Serum und Dexamethason auf den zytosolischen pH." [S.l. : s.n.], 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10733068.

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22

Silva, Maurício Chagas da. "Estudo teorico do mecanismo de acoplamento-cruzado envolvido na reação de formação da ligação Ph-Ph catalisada por paladio via PhB (OH)2 (Ph=C6H5)." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248946.

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Orientador: Nelson Henrique Morgon<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-04T16:59:18Z (GMT). No. of bitstreams: 1 Silva_MauricioChagasda_M.pdf: 1448929 bytes, checksum: 5e8a626133912c0e72a209eeccbbfd34 (MD5) Previous issue date: 2005<br>Mestrado<br>Físico-Química<br>Mestre em Química
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Ferreira, José Olímpio. "Simulação de filas Gi/G/m e verificação de aproximações destas por filas Ph/Ph/m." Instituto Nacional de Pesquisas Espaciais, 1998. http://urlib.net/sid.inpe.br/iris@1913/2005/07.21.11.28.

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A avaliação de desempenho de um sistema de fila GI/G/m é um clássico problema difícil. Estes sistemas de filas com múltiplos servidores são notoriamente difíceis de serem analisados analiticamente, sendo que uma solução analítica exata somente é possível para casos especiais, tais como as filas M/M/m, M/D/m, M/K2 /m, GI/H2/m, GI/EK/m, GI/Ph/m, Ph/D/m e Ph/Ph/m. Os modelos de simulação por computadores, apesar de exigirem muitos recursos de hardware (memória de trabalho e de armazenagem de massa, velocidade de processamento da CPU) e de consumirem muito tempo na execução das rodadas da simulaçã
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Nomura, Satoshi. "Development and Application of a Ligth-Scanning pH-Imaging Microscope Using a Flat Semiconductor pH Seneor." Kyoto University, 2000. http://hdl.handle.net/2433/151554.

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25

Monaco, Enzo. "pH Transients in Hydroxyapatite chromatography columns." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Ceramic Hydroxyapatite (CHT), with empirical formula (Ca5(PO4)3OH)2, is a material used as ion exchange resin in chromatographic applications. The material, having both positive and negative charged sites, can be used in many different contexts encountered in the protein purification processes. Nevertheless, the resin shows an intrinsic limitation for this kind of applications: even if the material solubility in water is very low at pH values higher than 6.5, it sharply increases in more acidic environments, reducing the life of the material and increasing the operative costs of the process, m
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Schapiro, Florencia Beatriz. "pH homeostasis of the Golgi complex." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq58920.pdf.

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27

Nyberg, Lindborg Kristina. "Phagolysosomal pH measurements in alveolar macrophages /." Stockholm, 2000. http://diss.kib.ki.se/2000/91-628-4512-8/.

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28

Norbert, Waranakulaarachchiralalage D. J. A. "Metal complexes as potential pH sensors." Thesis, Queen's University Belfast, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336008.

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29

Hammond, Paul A. "A single-chip digital pH meter." Thesis, University of Glasgow, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401960.

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30

Fridd, Susan. "pH dependence of colicin P-domains." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312027.

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31

Bourilkov, Jordan Todorov. "Electrical pH control in aqueous solutions." Thesis, City University London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418981.

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32

Griswold, Aaron A. (Aaron Alexander) 1981. "pH control in a miniaturized bioreactor." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32812.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.<br>Includes bibliographical references (leaf 18).<br>A miniaturized bioreactor with a volume on the order of 100 [micro]l has been built with the aim of increasing the efficiency of the screening process for various microbial cultures. Unlike larger reactors currently in use, the current miniaturized design lacks a method of pH control. Without pH control, cell growth can be hindered or even stopped altogether when the growing medium becomes too acidic. Using technology already in place to optically me
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Trevor, Susie. "pH responsive chitosan based 'smart' materials." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613408.

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34

Faradji, Charly Andre. "Optically active ligands derived from PH₃." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.730899.

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35

Mihell, John Alexander. "Ruthenium dioxide thick film pH electrodes." Thesis, University of Southampton, 1997. https://eprints.soton.ac.uk/47133/.

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PH sensitive electrodes have been fabricated using thick film screen printing techniques. Powdered ruthenium dioxide hydrate was incorporated in a printable paste by mixing with an uncured polymer precursor. This paste was printed onto alumina tiles which had been previously patterned with conductive tracking which enabled connection to measurement circuitry. The liquid polymer was cured to a resistant solid using either temperature or ultraviolet light treatments. Large numbers of electrodes were fabricated in this way, using ruthenium dioxide with varying levels of hydration. Printed electro
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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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37

Gorshkova, M. Yr, I. V. Volkova, E. S. Grigorian, and V. A. Izumrudov. "Polyelectrolyte Nanocomplexes with pH-controlled Solubility." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35468.

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The prepared polyelectrolyte complexes of anionic copolymer of divinyl ester and maleic anhydride and cationic water soluble chitosan proved to be able to undergo reversible phase transition, in particular at physiological pH and ionic strength. Formation of either soluble or insoluble complexes occurred depending on pH value, charge ratio and degree of polymerization of the polymers. The stability of positively or negatively charged complexes against destruction action of the added salt drastically increased in acidic media presumably owing to H-bonds formation. According to light-scatte
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Wrobel, Magdalena. "pH-driven instabilities in chemical systems." Thesis, University of Leeds, 2012. http://etheses.whiterose.ac.uk/4380/.

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The main aim of my project is to find new feedback driven enzymatic systems and to develop new biochemical oscillators. Such systems help in the understanding of nonlinear behaviour in biological systems and may also find applications in, for example, drug delivery or material science. The first step was to obtain a clock behaviour and bistability in a new enzymatic system, the urea/urease/sulphuric acid reaction. A kinetic model has been proposed and compared with the experimental results. Secondly, front propagation has been also observed in space under specific range of conditions and the r
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Zhang, Xiaomeng. "MRI OF TUMOR pH AND PERFUSION." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/195293.

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In the early 1920s, Otto Warburg demonstrated that tumor cells have a capacity to convert glucose and other substrates into lactic acid instead of CO2 and water, even under aerobic conditions. Consequently, Warburg assumed that the intracellular pH (pHi) of tumor was acidic. However, later studies have shown that maintenance of pHi within a pH range of 7.0-7.2 is necessary for normal cellular proliferation and that the extracellular pH (pHe) is partially acidic in solid tumors. A low pHe may be an important factor inducing invasive behavior in tumor cells. Research into causes and consequence
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Wilson, Darren. "pH and vascular smooth muscle tone." Thesis, University of Bath, 1997. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362288.

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41

Sardarinejad, Ali. "Nano-engineered RuO2-based pH sensors." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2016. https://ro.ecu.edu.au/theses/1773.

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pH sensors are broadly used in chemical and biological applications. Example, Metal oxide-based pH sensors have many appealing features that include chemical resistance, insolubility, stability, outstanding mechanical strength, electrocatalyst and manufacturing technology. This thesis focuses on recent pH measurement techniques which incorporate miniaturization and optimization of the sensor and fabrication with super Nerstian pH sensitive materials. Such sensors have high sensitivity, fast response, excellent corrosion resistance, wide detection range, low hysteresis, long-term stability and
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Jansson, Jennie. "The influence of pH on fiber and paper properties : Different pH levels during beating and sheet forming." Thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-36514.

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The effect of pH on fiber and paper properties, during beating and sheet formation, was investigated for three different pulps. The pulps were pH adjusted to four different pH levels between 3 and 9. Isotropic laboratory sheet were made of both unbeaten and beaten pulps. The beaten neutral sulfite semi-chemical pulp and bleached softwood kraft pulp were affected by changes in pH; bleached softwood kraft pulp in a minor extent due to less fiber surface charges. Compared to the other pH levels, pH 3 showed a lower fiber surface charge, water retention value, tensile index, tensile stiffness inde
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Ye, Xuemin. "The effect of water pH on swimming performance, blood pH, red cell pH, ion concentrations and catecholamine concentrations in plasma, and gill potential in rainbow trout (Salmo gairdneri)." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26676.

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The effect of transferring fish from water at pH 7.0 to either more acid or more alkaline conditions was to reduce the maximum critical velocity of the fish. In water of pH 4.0, 5.0, and 10.0, the maximum critical velocity was only 54.5%, 66.5%, and 61% respectively of that recorded for fish in the water of pH 7.0. Thus, both acid and alkaline conditions in the water reduce the aerobic swimming capacity of trout. Exposure to acid conditions increased mucus secretion and this was associated with an increase in coughing and breathing frequency in resting fish. Coughing rate increased from 41/hr
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Virvilaitė, Ilona. "Mėsos pH kitimo tyrimas technologinio proceso metu." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070420_100738-97922.

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The research of pH chantes in ripe smoke-dried sausvages during the whole technological process of production. The research is made at ŽŪB „Nematekas“ (agricultural company). The smoke-dried sausages were chosen as subject of research. One group of products was ripened for 7 days, the other one – for 13 days. The raw materials used for the production of all sausages were the same as follows: beef ham (I sort), beef (II sort), pork, pork or beef lard. The dynamics of pH and weight changes was researched. Following results were fixed: The biggest waste of weight – 25 % in 12 days were achieved b
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Bjaaland, Helen. "Ambivalens inför rutinmässigt navelsträngs-pH : Hur barnmorskor inom förlossningsvård resonerar kring det nyfödda barnets nytta av navelsträngs-pH." Thesis, Högskolan i Skövde, Institutionen för hälsa och lärande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-16236.

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Bakgrund: Navelsträngs-pH tas rutinmässigt på nästan alla nyfödda barn i Sverige, det finns nu olika uppfattningar om navelsträngs-pH:ts nytta. Forskning visar att navelsträngs-pH har klinisk nytta för barn som föds vid högriskförlossningar, barnets nytta ses inte vid lågriskförlossningar. Själva provtagningsförfarandet ses inte utgöra några direkta risker för barnet. Det är viktigt att barnmorskors resonemang kring navelsträngs-pH synliggörs eftersom pH-provtagningen igår i barnmorskans ansvarsområde. Syfte: Att synliggöra hur barnmorskor inom förlossningsvård resonerar kring det nyfödda barn
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Weber, Johann Rudolf. "Messungen des extrazellulären pH und der pH-Differenz zwischen Intra- und Extrazellulärraum mittels Mikroelektroden am Ventrikelmyokard von Meerschweinchen /." [S.l : s.n.], 1987. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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Witzel, Dirk. "Pharmakologische Beeinflussung der pH-Regulation kardialer Fibroblasten." [S.l.] : [s.n.], 2003. http://archiv.ub.uni-marburg.de/diss/z2003/0424/.

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Schitthelm, Frank. "Amorphe diamantartige Kohlenstoffschichten für integrierte pH-Sensoren." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=968691277.

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Olsson, Jan, and Åsa Sjödin. "Spermiers överlevnad i olika pH- och näringslösningar." Thesis, Högskolan Dalarna, Biologi, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:du-1548.

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The sperm in the seminal fluid is affected by various environmental factors, where one is the pH-value in the environment. An extremely low or high pH-value has been observed in other studies to be lethal to sperm cells, thus effecting the sperms capability to perform a conception. Addition of nutrion, such as glucose and fructose, also has been a factor contributing to the survival of the sperm.In this essay we found that the pH-value did not affect the lifespan of the sperm. Mainly due to the pH-value in the seminal fluid and the buffer capacity of the same, the different pH-solutions we u
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Bou-Abboud, Elias. "Modulation by pH of sodium channel blockade." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ35569.pdf.

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