Дисертації з теми "PANI composite"
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Adusei, Paa Kwasi. "Carbon Nanotube-Based Composite Fibers for Supercapacitor Application." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1561996824580323.
Повний текст джерелаBiscuola, Marco Aurélio [UNESP]. "Desenvolvimento e caracterização de dispositivos luminescentes híbridos." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/91884.
Повний текст джерелаCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
As novas tecnologias para a construção de telas e displays têm permitido reduzir o consumo de energia, o peso e a espessura, como também melhorar a eficiência e flexibilidade se comparado aos antigos monitores de CRTs e até mesmo aos atuais displays de cristal líquido. Dentre estas novas tecnologias destacam-se as que utilizam materiais orgânicos (OLED) ou orgânicos poliméricos (PLED) não somente por suas possibilidades de aplicações industriais, mas também por permitirem o desenvolvimento das ciências básica e aplicada. Seguindo uma linha alternativa, propomos, neste trabalho, um novo compósito híbrido, resultante da combinação de uma fase polimérica e uma fase inorgânica, que, do nosso ponto de vista também poderá contribuir para o desenvolvimento dessa nova geração de displays e telas. Este compósito é formado pela blenda de um polímero condutor dopado, a PANI (polianilina) ou POMA (poli(o-metóxi anilina)), e um polímero isolante, o P(VDF-TrFE) poli(vinilideno-co-trifluoretileno), na qual micro partículas de Zn2SiO4:Mn (SZF) foram adicionadas. Para o desenvolvimento desse novo compósito, estudamos cada um de seus elementos constituintes, notadamente quanto ao seu modo de preparo, características morfológicas e propriedades elétricas. Como resultado final, obtivemos dispositivos constituídos de uma única camada do compósito híbrido depositado por espalhamento sobre um substrato de ITO/FTO, acrescido, ainda, de um eletrodo de alumínio depositado por evaporação. Para a caracterização destes dispositivos foram realizadas medidas de condutividade elétrica, luminescência (L) e fotoluminescência (PL). Os compósitos PANI/P(VDF-TrFE)/SZF 05/95/80 e POMA/P(VDF-TrFE)/SZF 25/75/80 com condutividade elétrica da ordem de 10-3 S/m foram os que melhor se adequaram para a construção dos dispositivos. Os espectros de L e PL apresentaram um pico em ? = 538... .
New technologies recently applied to the fabrication of organic screens and displays have allowed the manufacture of lighter, thinner monitors in comparison to either the conventional cathodic rays tube (CRTs) or the liquid crystal displays (LCDs). In addition, displays based on organic materials (the so-called organic light emitting displays (OLEDs and the polymeric light emitting displays - PLEDs) may exhibit improved efficiency and flexibility. The organic displays have attracted attention of a number of research groups aimed at investigating the potential applications of these new devices in the electronic industry. In this study, a new hybrid composite comprising an inorganic phase dispersed in a polymeric matrix was investigated as a possible candidate material for displays fabrication. The continuous, organic phase was a blend containing a conducting polymer, viz. polyaniline (PANI) or its derivative poly(o-methoxyaniline) (POMA) and an insulating polymer, P(VDF-TrFE) (Poly(viny1idene fluoride- trifluorethylene)). Micro particles of Zn2SiO4:Mn (SZF) was added to the polymeric phase as the luminescent, active material. Luminescent devices were fabricating using a conventional trilayer architecture in which a thin film of the hybrid composite was deposited between two conducting electrodes. As the anode electrode we used either Indium-TinOxide (ITO) or Fluorine-Tin-Oxide (FTO)-covered glass plates. Evaporated aluminum was used as the cathode electrode. The material/device characterization was carried out using electric conductivity, luminescence (L) and photoluminescence (PL) measurements. PANI/P(VDFTrFE)/ SZF (05/95)/80 and POMA/P(VDF-TrFE)/SZF (25/75)/80 composites compositions presented the best performance, with electric conductivity of ca. 10-3 S/m. Luminescence and photoluminescence measurements revealed that both devices exhibited an emission band centered at 538 nm... (Complete abstract, click electronic address below).
Nguyen, Tuan Anh. "Protection du fer par les polymères conducteurs polyaniline et composite (polyaniline - poly 1,5 - diaminonaphtalène) : électropolymérisation : étude du mécanisme de protection par les mesures électrochimiques locales." Paris 7, 2002. http://www.theses.fr/2002PA077131.
Повний текст джерелаBrito, Fabiane Fagundes. "Caracterização eletroquimica do composito PSSO3H/PAni para aplicação em celulas a combustivel." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263645.
Повний текст джерелаDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica
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Resumo: O desenvolvimento de materiais alternativos para aplicação em células a combustível (CaC) é uma tentativa de viabilização comercial das células, por meio da redução de custos com matéria-prima para manufatura das mesmas. Neste trabalho de mestrado, investigou-se o compósito de poliestireno sulfonado/polianilina para possível aplicação em CaCs, o qual é um material alternativo e de baixo custo de preparo. As propriedades químicas, morfológicas e térmicas do compósito foram caracterizadas por Espectroscopia de Infravermelho, Microscopia Eletrônica de Varredura (MEV) e Microscopia Óptica, Calorimetria Diferencial de Varredura (DSC) e Termogravimetria (TGA), respectivamente. As propriedades eletroquímicas do compósito foram estudadas correlacionando com a estrutura do material, por meio do emprego das seguintes técnicas eletroquímicas: Cronopotenciometria, Voltametria Cíclica e Espectroscopia de Impedância Eletroquímica (EIE). A condutividade iônica do compósito foi determinada pela medida da resistência do material, empregando-se a técnica eletroquímica Galvanodinâmica, com aplicação de uma varredura de corrente
Abstract: The development of alternative materials for fuel cells applications consists on a tentative to produce commercially available fuel cells, by reduction of costs with their manufacturing and materials. This master dissertation presents an investigation on the polystyrene sulfonate/polyaniline composite, which is an alternative material with low cost of production, owing to fuel cells applications. The chemical, morphological and thermal properties were characterized by Infrared Spectroscopy, Scanning Electron Microscopy and Optical Microscopy, Differential Scanning Calorimetry (DSC) and Termogravimetry (TGA), respectively. The electrochemical properties were studied by correlating them with the structure of the material, by employment of the following techiques: Chronopotenciometry, Cyclic Voltammetry and Electrochemical Impedance Spectroscopy (EIS). The ionic conductivity of the composite was determined by the measurement of its resistance, and using a steady-state linear sweep current Galvanodynamic technique
Mestrado
Materiais e Processos de Fabricação
Mestre em Engenharia Mecânica
Liang, Jianghong. "Single Wall Carbon Nanotube/Polyacrylonitrile Composite Fiber." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/7613.
Повний текст джерелаFrost, Brody. "Polymer Composite Spinal Disc Implants." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/78783.
Повний текст джерелаMaster of Science
Spinal disc degeneration is a very prevalent problem in today’s society, effecting anywhere from 12% to 35% of a given population. It usually occurs in the lumbar section of the spine, and when severe enough, can cause bulging and herniation of the intervertebral disc itself. This can cause immense lower back pain in individual’s stricken with this disease, and in the US, medical costs associated with lower back pain to exceed $100 billion. Current solutions to this problem include multiple different treatment options of which, spinal fusion surgery and total disc replacement (TDR) are among the most common. Although these treatments cause pain relief for the majority of patients, there are multiple challenges that come with these options. For example, spinal fusion surgery severely limits the mobility of its patients by fusing two vertebrae together, disallowing any individual movement, and TDR can cause hypermobility in among the vertebrae and offer little to no shock absorption of loads. Therefore, a better treatment option is needed to relieve the pain of the patients, as well as maintain equal motion, shock absorption, and load cushioning to that of the normal intervertebral disc and remaining biocompatible. The goal of this research study was to create a three-component system, like that of the natural intervertebral disc, for the use of spinal disc replacement and to replace current options. The fabricated system was comprised of the three components found in the natural intervertebral disc; the annulus fibrosus, the nucleus pulposus, and the vertebral endplates. Because the system will need to go in-body, the materials used were all characterized as biocompatible materials; the polyurethane currently being used in medical devices and implants, and the cellulose nanocrystals (CNCs) coming from natural cellulose in sources such as wood and plants. The results determined that the mechanical properties of the system can be fine-tuned in order to mimic the natural strength and cushioning capabilities of the natural disc, based on CNC content added to the polyurethane, and when all three components of the system are added together, the compressive stress-strain is most similar to the natural disc in compression. However, the system did show failure in the connection between the annulus fibrosus and vertebral endplates, causing herniation of the nucleus similar to the initial problem attempting to be solved. For this, more ideal fabrication methods should be researched in the future including 3D printing techniques, injection molding, and roll milling. As well as alternate fabrication techniques, cell grow and viability should be determined to show that cells don’t die once the system in implanted.
Frost, Brody A. "Polymer Composite Spinal Disc Implants." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/78783.
Повний текст джерелаMaster of Science
Spinal disc degeneration is a very prevalent problem in today’s society, effecting anywhere from 12% to 35% of a given population. It usually occurs in the lumbar section of the spine, and when severe enough, can cause bulging and herniation of the intervertebral disc itself. This can cause immense lower back pain in individual’s stricken with this disease, and in the US, medical costs associated with lower back pain to exceed $100 billion. Current solutions to this problem include multiple different treatment options of which, spinal fusion surgery and total disc replacement (TDR) are among the most common. Although these treatments cause pain relief for the majority of patients, there are multiple challenges that come with these options. For example, spinal fusion surgery severely limits the mobility of its patients by fusing two vertebrae together, disallowing any individual movement, and TDR can cause hypermobility in among the vertebrae and offer little to no shock absorption of loads. Therefore, a better treatment option is needed to relieve the pain of the patients, as well as maintain equal motion, shock absorption, and load cushioning to that of the normal intervertebral disc and remaining biocompatible. The goal of this research study was to create a three-component system, like that of the natural intervertebral disc, for the use of spinal disc replacement and to replace current options. The fabricated system was comprised of the three components found in the natural intervertebral disc; the annulus fibrosus, the nucleus pulposus, and the vertebral endplates. Because the system will need to go in-body, the materials used were all characterized as biocompatible materials; the polyurethane currently being used in medical devices and implants, and the cellulose nanocrystals (CNCs) coming from natural cellulose in sources such as wood and plants. The results determined that the mechanical properties of the system can be fine-tuned in order to mimic the natural strength and cushioning capabilities of the natural disc, based on CNC content added to the polyurethane, and when all three components of the system are added together, the compressive stress-strain is most similar to the natural disc in compression. However, the system did show failure in the connection between the annulus fibrosus and vertebral endplates, causing herniation of the nucleus similar to the initial problem attempting to be solved. For this, more ideal fabrication methods should be researched in the future including 3D printing techniques, injection molding, and roll milling. As well as alternate fabrication techniques, cell grow and viability should be determined to show that cells don’t die once the system in implanted.
Marcasuzaa, Pierre. "Composites conducteurs à base de PANI : vers une architecture contrôlée de 2D à 3D." Pau, 2009. http://www.theses.fr/2009PAUU3047.
Повний текст джерелаIntrinsically conducting polymers (ICPs) are a recent category of materials which currently make strong great strides. However, their main inconvenience is their insolubility in the usual solvents. That’s why lots of studies associate them with polymer matrices to make composites. During this study, conductive blocks copolymers with controlled architecture were obtained. These copolymers consist of a "matrix" block and a second conductive block. The first part, polystyrene or polyacrylate, is synthesized by controlled radical polymerization (ATRP) to control the molecular weight (between 5 000 and 15 000 g / mol) and the polydispersity (Ip). The conductive part is an oligomer of aniline. Then, both blocks are coupled to obtain a diblock copolymer. This synthesis is realized by conventional heating (bath of oil) and under microwave irradiation. Other architecture of copolymer is realized, it consists on the graft of polyaniline onto a natural polymer, the chitosane which brings coating properties, and the possibility of realizing hydrogels by crosslinking of grafting copolymer. So a network in which the PANI is distributed in a homogeneously is obtained
Antoine, Donley. "Optical Transparent Pmma Composite Reinforced By Coaxial Electrospun Pan Hollow Nanofibers." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc271772/.
Повний текст джерелаFröhlich, Christine, Frank Jacobi, and Hans-Ulrich Wittchen. "DSM-IV pain disorder in the general population." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-105073.
Повний текст джерелаFröhlich, Christine, Frank Jacobi, and Hans-Ulrich Wittchen. "DSM-IV pain disorder in the general population: An exploration of the structure and threshold of medically unexplained pain symptoms." Technische Universität Dresden, 2006. https://tud.qucosa.de/id/qucosa%3A26567.
Повний текст джерелаZollinger, Marc. "Elegant Pain| Composing Identity in the Work of Itamar Assumpcao." Thesis, Mills College, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13426327.
Повний текст джерелаInfluenced by the 1960's vanguard movement of Tropicália, Itamar Assumpção became a leader of the so-called Vanguarda Paulista. He offered a new critique of the establishment while taking part in an independent DIY scene. This critique took the form of a detached and ironic narrative voice, and the exploration and reimagining of Samba and Pan-Africanism through polyphony and dissonance. Assumpção stands out as someone who was able to generate a new synthesis of Pan-African traditions and the Brazilian Popular Song tradition. Though today there's a current generation of musicians from São Paulo who are influenced by Assumpção, he still remains largely unknown in Brazil and the rest of the world. I analyze selected pieces from his discography by looking at his lyrics and compositional procedures in order to demonstrate a vast scope of artistic thought that utilized influences from contemporary theater to Reggae.
Fornari, junior Celso Carlino Maria. "Préparation, caractérisation et propriétés anti-corrosion des revêtements organiques composites à base de polyaniline sur aciers doux." Paris 7, 2001. http://www.theses.fr/2001PA077193.
Повний текст джерелаCoucelo, José Miguel Carreira Revez Pereira. "Use of the short form glasgow composite measure pain scale in the assessment of canine patients presenting in shock." Master's thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2015. http://hdl.handle.net/10400.5/10629.
Повний текст джерелаThe short form of Glasgow Composite Measure Pain Scale (CMPS-SF), a previously validated decision-making tool is increasingly used in practice for the assessment of pain in dogs. However, few studies have considered the application of a pain scoring system in patients presenting in emergency situations. This study aimed to evaluate if pain scoring with the Glasgow CMPS-SF was effective in identifying pain in patients in shock. A prospective study (November 2014 to January 2015), within a first opinion and specialty intensive care service was developed. A total of 31 client-owned dogs (16 females and 15 males) that presented as primary emergencies or transfers. When admitted to the study, all dogs were examined by a veterinarian or registered veterinary nurse. Patients were classified and grouped as Shock (S) or Not Shock (NS) on basis of their shock index (SI). The shock status was defined a priori if the SI was higher than 1.0. Regardless of group, all patients had their pain assessed with the Glasgow CMPS-SF and by a Board Eligible Internist or a Emergency and Critical Care specialist, blinded to both pain score and SI values. Dogs in shock numbered 18/31 dogs within the not shock group numbered 13/31. Mean age of dogs in the S group was 4.6 years (0.2 – 10) and in the NS group was 8.3 years (1 – 16); a significant difference existed in age between groups (p-value<0.05). Median pain score of the S group was 5 (0 – 17) and on the NS group was 3 (1 – 15). There was no significant difference on pain scores between the groups (p-value>0.05) and between the clinicians’ perception of pain between groups (p-value>0.05). A significant difference was present between pain scores and the clinicians’ opinion on pain (p-value=0.014), including within the shock group (p-value=0.0021). Cohen’s kappa statistic within the shock group was 0.47, which can be interpreted as weak to moderate agreement between the Glasgow CMPS-SF and the clinician opinion on pain. Within the NS group the differences between the pain scores and the clinician’ opinion on pain were not statistically significant (p-value>0.05). These results do not support an acceptable agreement between the Glasgow CMPS-SF and an experienced veterinarians evaluation of pain in patients presenting in shock. Therefore, further investigation into the relevance of the used pain assessment tool in emergency and shock patients is recommended before use in the objective monitoring of this subset of patients.
RESUMO - USO DA FORMA ABREVIADA DA ESCALA COMPOSTA DA DOR DE GLASGOW EM CÃES COM APRESENTAÇÃO DE CHOQUE - O reconhecimento e avaliação de dor em doentes veterinários pode ser desafiante, especialmente nos que se encontram em estado crítico. A já validada forma abreviada da Escala Composta da Dor de Glasgow (CMPS-SF) é, cada vez, mais utilizada em ambiente clínico na avaliação da dor aguda em cães. Contudo, poucos estudos têm considerado a aplicação de um sistema de avaliação de dor em doentes que se apresentam em situação de emergência. Foi desenvolvido um estudo experimental com o propósito de avaliar se a pontuação obtida com a CMPS-SF seria capaz de identificar dor em doentes que se apresentassem em choque. O estudo prospetivo desenvolveu-se numa clínica de primeira opinião e com serviço de cuidados intensivos (entre Novembro de 2014 e Janeiro de 2015). Foram incluídos no estudo 31 cães, admitidos em situação de emergência ou como referências, tendo sido examinados por um médico veterinário ou uma enfermeira veterinária. Os doentes foram classificados como estando em choque (S) ou não (NS) com base no seu índice de choque (IC). O estado de choque foi definido quando IC>1.0. Todos os doentes foram avaliados quanto à dor pela utilização da CMPS-SF e através de um exame físico realizado por um candidato a Internista ou um especialista em Emergências e Cuidados Intensivos, desconhecedores da pontuação obtida com a escala de CMPS-SF e do IC. O nível de significância estabelecido foi de 0.05. O grupo de cães em choque incluiu 18 cães e o grupo de não choque incluiu 13. A idade média dos animais no grupo S foi de 4.6 anos e no grupo NS foi de 8.3. As diferenças de idade observadas entre os grupos foram consideradas estatisticamente significativas (pvalue< 0.05). A pontuação média de dor no grupo S foi 5 e no grupo N.S. foi 3. As diferenças observadas na pontuação de dor entre os dois grupos grupos não foi considerada significativa (p-value>0.05). A perceção da dor pelos médicos veterinários nos dois grupos também não foi considerada significativa (p-value>0.05). Considerou-se significativa a diferença observada entre as pontuações de dor e a perceção de dor dos médicos veterinários (p-value=0.014), incluíndo no grupo S (p-value=0.0021). No grupo S, a concordância entre métodos foi de 0.47, interpretada como fraca a moderada. Face aos resultados obtidos, sugerem-se mais estudos relativos à precisão da utilização de escalas de dor em doentes que se apresentem em emergência e em condições de choque, antes que estas escalas possam ser recomendadas neste tipo de doentes.
Birks, Yvonne. "Role of an adapted index of type A behaviour : relationships with health and reactivity, and a role in 'composite risk'." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325600.
Повний текст джерелаBanomyong, Danuchit. "Effects of glass-ionomer cement lining on sealing ability and postoperative tooth sensitivity after resin composite restoration of posterior teeth /." Connect to thesis, 2009. http://repository.unimelb.edu.au/10187/3533.
Повний текст джерелаKhenoussi, Nabyl. "Contribution à l'étude et à la caractérisation de nanofibres obtenues par électro-filage : Application aux domaines médical et composite." Phd thesis, Université de Haute Alsace - Mulhouse, 2010. http://tel.archives-ouvertes.fr/tel-00685662.
Повний текст джерелаKessler, Ronald C., Joseph R. Calabrese, P. A. Farley, Michael J. Gruber, Mark A. Jewell, Wayne Katon, Jr Paul E. Keck, et al. "Composite International Diagnostic Interview screening scales for DSM-IV anxiety and mood disorders." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-129425.
Повний текст джерелаKessler, Ronald C., Joseph R. Calabrese, P. A. Farley, Michael J. Gruber, Mark A. Jewell, Wayne Katon, Jr Paul E. Keck, et al. "Composite International Diagnostic Interview screening scales for DSM-IV anxiety and mood disorders." Technische Universität Dresden, 2012. https://tud.qucosa.de/id/qucosa%3A27327.
Повний текст джерелаSousa, Sofia Palacim Terreiro de. "Utilização da escala multidimensional composta para avaliação de dor aguda pós-cirúrgica em gato para comparação de eficácia de três protocolos analgésicos no modelo cirúrgico de ovariohisterectomia eletiva felina." Master's thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2014. http://hdl.handle.net/10400.5/6529.
Повний текст джерелаO alívio da dor pericirúrgica é uma temática essencial em Medicina Veterinária, não só pela promoção do bem-estar dos animais, como de uma melhor recuperação da anestesia. O gato (Felis silvestris catus) é uma das espécies sobre as quais há um menor domínio do reconhecimento e do controlo da dor. Recentemente, foi desenvolvida a “Escala Multidimensional Composta Para Avaliação de Dor Aguda Pós-Cirúrgica em Gato”, que constitui uma nova ferramenta no maneio da dor felina. O presente estudo teve como objetivo a utilização da referida escala para comparar a eficácia de três protocolos analgésicos, administrados em gatas saudáveis (n=30), submetidas a ovariohisterectomia eletiva. Para efeitos de avaliação de dor peri-cirúrgica consideraram-se as pontuações de dor no pré-cirúrgico (T0) e às 1h (T1), 2h (T2), 3h (T3), 4h (T4), 24h (T24) e 48h (T48) após a recuperação anestésica. Os grupos de estudo – GR, GB e GRB – foram, respetivamente, pré-medicados com robenacoxib (SC, 2mg/Kg) (n=10), buprenorfina (EV, 0.02mg/Kg) (n=10) e a combinação de ambos os fármacos (n=10), 30-45 minutos antes da cirurgia. Durante o procedimento, monitorizaram-se variáveis fisiológicas, como a pressão arterial sistólica, a frequência cardíaca e a frequência respiratória. No pós-cirúrgico, pontuações de dor iguais ou superiores a 8, com avaliação clínica concordante, remetiam para analgesia de resgate (buprenorfina IM, 0,02mg/Kg). A análise estatística foi realizada com o software SAS 9.3 (SAS Institute, 2004), com recurso à análise de variância “One Way ANOVA”, ao teste de comparação de médias, utilizando um teste t, e ao teste de qui-quadrado. Os resultados revelaram pontuações de dor mais elevadas no grupo GB, seguido do GR e, finalmente, do GRB. Quanto às analgesias de resgate, foram efetuadas em 2 gatas do grupo GR, 3 do grupo GB e 0 do grupo GRB. Ainda que não se tivesse encontrado diferença significativa entre os protocolos analgésicos, quando se analisaram as repetições das analgesias de resgate, verificou-se maior exigência das mesmas no grupo GB. Da análise das variáveis fisiológicas, retirou-se que apenas para a pressão arterial sistólica houve diferenças significativas entre grupos. Concluiu-se que a analgesia multimodal se mostrou mais eficiente, embora ambos os protocolos com robenacoxib se tenham mostrado eficazes. Podemos também referir que a presente escala de dor permitiu uma pontuação fidedigna e uma abordagem à dor póscirúrgica do gato bem-sucedida.
ABSTRACT - Perioperative pain relief is a major subject in veterinary practice as it determines the level of well being of the animals and provides a better anesthetic recovery. Nowadays there is still lack of knowledge about pain detection and management in the domestic cat (Felis silvestris catus). Recently a multidimensional composite scale for use in assessing acute postoperative pain in cats was developed and represents a new tool for feline pain management. The purpose of the present study was to use this new pain scale in order to compare three different analgesic protocols in thirty healthy female cats (n=30) after ovariohysterectomy. Pain scores were considered before surgery (T0) and 1h (T1), 2h (T2), 3h (T3), 4h (T4), 24h (T24) and 48h (T48) after anesthetic recovery. Study groups – GR, GB e GRB – were respectively pre-medicated 30-45 minutes before surgery with robenacoxib (SC, 2mg/Kg) (n=10), buprenorphine (EV, 0.02mg/Kg) (n=10) and their combination (n=10). Physiologic variables as respiratory rate, heart rate and systolic arterial blood pressure were continuously monitored during the procedure. After surgery cats would be having rescue analgesia (buprenorphine IM, 0,02mg/Kg) if pain scores were equal to or greater than 8. Statistical analysis of the present study was performed with statistical software SAS 9.3 (SAS Institute, 2004) using the analysis of variance "One way ANOVA", the t test and the chi-square test. The results showed higher scores in GB group, followed by GR group and GRB group. Two cats needed rescue analgesia in GR group, three were rescued in GB group and none o the cats needed rescue analgesia in GRB group. We can’t safely say that there are statistical significant differences among analgesic protocols as we had p=0,06. However GB group was the only one showing need to repeat rescue analgesia. Statistic analysis of the physiologic variables revealed statistical differences among groups only for systolic arterial blood pressure. We concluded that multimodal analgesia was more effective. Nevertheless both protocols with robenacoxib were efficient. Thus we can accomplish that the multidimensional composite scale for use in assessing acute postoperative pain in cats is a reliable pain scoring method and allowed a satisfactory approach to feline postoperative pain.
Chorbadzhieva, Ana [Verfasser], Sabine Beate Rita [Akademischer Betreuer] Kästner, Alexandra Friederike [Akademischer Betreuer] Schütter, Sabine [Gutachter] Kästner, and Hiebl [Gutachter] Bernhard. "Evaluation der Einsetzbarkeit und Reproduzierbarkeit der deutschsprachigen Version der multidimensionalen „Glasgow Composite Measure Pain Scale“ für Katzen im klinischen Alltag / Ana Chorbadzhieva ; Gutachter: Sabine Kästner, Hiebl Bernhard ; Sabine Kästner, Alexandra Schütter." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2020. http://d-nb.info/1225740347/34.
Повний текст джерелаChorbadzhieva, Ana [Verfasser], Sabine Beate Rita [Akademischer Betreuer] Kästner, Alexandra Friederike [Akademischer Betreuer] Schütter, Sabine Beate Rita [Gutachter] Kästner, and Hiebl [Gutachter] Bernhard. "Evaluation der Einsetzbarkeit und Reproduzierbarkeit der deutschsprachigen Version der multidimensionalen „Glasgow Composite Measure Pain Scale“ für Katzen im klinischen Alltag / Ana Chorbadzhieva ; Gutachter: Sabine Kästner, Hiebl Bernhard ; Sabine Kästner, Alexandra Schütter." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2020. http://nbn-resolving.de/urn:nbn:de:gbv:95-114965.
Повний текст джерелаAussawasathien, Darunee. "ELECTROSPUN CONDUCTING NANOFIBER-BASED MATERIALS AND THEIR CHARACTERIZATIONS: EFFECTS OF FIBER CHARACTERISTICS ON PROPERTIES AND APPLICATIONS." Akron, OH : University of Akron, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1145050541.
Повний текст джерела"May, 2006." Title from electronic dissertation title page (viewed 10/11/2006) Advisor, Erol Sancaktar; Committee members, James L. White, Kyonsuku Min, Darrell H. Reneker, Wieslaw Binienda; Department Chair, Sadhan C. Jana; Dean of the College, Frank N. Kelley; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
La, Rocca Viviana. "Atividade antinociceptiva do geraniol: estudos comportamentaise eletrofisiológicos." Universidade Federal da Paraíba, 2016. http://tede.biblioteca.ufpb.br:8080/handle/tede/9944.
Повний текст джерелаMade available in DSpace on 2018-07-17T18:53:07Z (GMT). No. of bitstreams: 1 Arquivototal.pdf: 3232624 bytes, checksum: 559aa25bbe9205467b3fdd737354219e (MD5) Previous issue date: 2016-02-29
The high incidence of pain in the general population has encouraged research about this theme. Products derived from plant species have been widely used in the pharmacological treatment of pain relief. Recent studies have reported the important role of monoterpenes, active compounds found in the essential oils of aromatic plants, having relevant analgesic and anti-inflammatory potential. The geraniol (GER) is a monoterpenic alcohol, found in >160 essential oil of plant species, especially Cymbopogon gender. In the literature consulted, several biochemical and pharmacological properties are shown of GER: antitumor, antimicrobial, antiinflammatory, antioxidant, gastric and intestinal protector, neuroprotective and antiarrhythmic. In this study was evaluated the antinociceptive activity of GER, not yet reported, by animal behavioral and electrophysiological in vitro models. Male and female adult Swiss mice were used. Initially the acute toxicity of GER was investigated by calculating the lethal dose 50 (LD50) by intraperitoneal (i.p.) (= 199.9 mg/kg) and oral (p.o.) (> 1 g/kg). In psychopharmacological screening, after the administration of single doses of GER (i.p. and p.o.), behavioral changes were observed indicating a depressant profile on the central nervous system (CNS) and/or peripheral nervous system (SNP), and relevant antinociceptive effect of geraniol. Therefore, more specific antinociceptive property evaluation tests were performed. The GER (12.5, 25 or 50 mg/kg i.p. and 50 or 200 mg/kg p.o.) decreased (p<0.001) the number of abdominal contractions induced by i.p. injection of acetic acid, when compared with the control. The opioid antagonist naloxone (5 mg/kg) administered subcutaneously (s.c.) in mice, subsequently treated with GER (25 mg/kg i.p.), did not reverse its antinociceptive activity. The GER (12.5, 25 and 50 mg/kg i.p.) reduced (p<0.001) paw licking time in the second phase (15-30 min, inflammatory phase) of the formalin test. Also, in the glutamate test was reduced (p<0.01) paw licking time when GER 50 mg/kg i.p. administered. In a subsequent step, it was investigated the effect of GER on the excitability of peripheral nerve fibers through extracellular recording in the sciatic nerve in mice. The GER presented depressant effect of the compound action potential (CAP), which was reversed after washing and recovery period. The GER blocked components of the CAP concentration-dependent manner and exposure time to the drug: 1 mM after 120 min for the first component (Aγ and Aβ fibers) and 0.6 mM after 90 min for the second (Aγ and Aδ fibers). The concentration, which induces 50% inhibition of the peak-to-peak amplitude of the PAC (IC50) for the GER was calculated, being equal to 0.48±0.04 mM. The conduction velocity was also reduced by exposure to GER from the 0.3 mM concentration, for the 1st component [46.18±2.60 m/s to 36.04±1.60 m/s; p<0.05 (n=7)] and the 2nd component [18.37±1.31 m/s to 12.71±0.56 m/s; p<0.001 (n=7)]. In conclusion, the results obtained show that GER has antinociceptive activity, mainly in pain related to inflammation. Participation of the opioid pathway in its mechanism of action is unlikely, but the modulation of glutamatergic neurotransmission in a dose-dependent manner is a possible mechanism. Its antinociceptive activity is also related to the reduction in peripheral neuronal excitability, firstly in thinner fibers Aδ, which are directly connected to the conduction pain.
A elevada incidência da dor na população em geral tem incentivado as pesquisas entorno desse tema. Produtos oriundos de espécies vegetais têm sido amplamente utilizados no tratamento farmacológico de alívio da dor. Estudos recentes têm relatado o importante papel dos monoterpenos, princípios ativos encontrados nos óleos essenciais de plantas aromáticas, tendo relevante potencial analgésico e anti-inflamatório. O geraniol (GER) é um álcool monoterpênico, encontrado no óleo essencial de >160 espécies vegetais, especialmente do gênero Cymbopogon. Na literatura consultada, pesquisas apontam várias propriedades bioquímicas e farmacológicas para o GER: antitumoral, antimicrobiana, anti-inflamatória, antioxidante, de proteção gástrica e intestinal, neuroprotetora e antiarrítmica. Neste estudo foi avaliada a atividade antinociceptiva do GER, ainda não relatada, mediante modelos animais comportamentais e eletrofisiológicos in vitro. Foram utilizados camundongos machos e fêmeas Swiss adultos. Inicialmente, foi investigada a toxicidade aguda do GER mediante cálculo da dose letal 50 (DL50) pela via intraperitoneal (i.p.) (=199,9 mg/kg) e oral (v.o.) (>1 g/kg). Na triagem psicofarmacológica, após a subministração de doses únicas de GER (i.p. e v.o.) foram observadas alterações comportamentais que indicaram perfil depressor do sistema nervoso central (SNC) e/ou periférico (SNP), e relevante efeito antinociceptivo do geraniol. Portanto, foram realizados testes comportamentais de avaliação de propriedade antinociceptiva mais específicos. O GER (12,5; 25 e 50 mg/kg i.p. e 50 ou 200 mg/kg v.o.) reduziu (p<0,001) o número de contorções abdominais induzidas por injeção i.p. de ácido acético, quando comparado com o controle. O antagonista opióide naloxona (5 mg/kg) administrado pela via subcutânea (s.c.) em camundongos, subsequentemente tratados com GER (25 mg/kg i.p.), não reverteu sua atividade antinociceptiva. O GER (12,5; 25 e 50 mg/kg i.p.) reduziu (p<0,001) o tempo de lambida da pata na segunda fase (15-30 min, fase inflamatória) do teste da formalina. Também, no teste do glutamato houve redução (p<0,01) do tempo de lambida da pata quando administrado GER 50 mg/kg i.p. Em uma etapa subsequente, investigou-se o efeito do GER sobre a excitabilidade de fibras nervosas periféricas, mediante registro extracelular em nervo ciático de camundongo. O GER apresentou efeito depressor do potencial de ação composto (PAC), o qual foi parcialmente revertido após lavagem durante o período de recuperação. O GER bloqueou as componentes do PAC, de maneira dependente da concentração e do tempo de exposição à droga: 1 mM aos 120 min para a primeira componente (fibras Aγ e Aβ) e 0,6 mM aos 90 min para a segunda (fibras Aγ e Aδ). Foi calculada para o GER, a concentração que induz 50% de inibição da amplitude pico-a-pico do PAC (CI50), sendo igual a 0,48±0,04 mM. A velocidade de condução também, foi reduzida pela exposição ao GER, a partir da concentração de 0,3 mM para a 1ª componente [46,18±2,60 m/s para 36,04±1,60 m/s; p<0,05 (n=7)] e para a 2ª componente [18,37±1,31 m/s para 12,71±0,56 m/s; p<0,001 (n=7)]. Em conclusão, os resultados obtidos mostram que o GER tem atividade antinociceptiva, principalmente na dor relacionada à inflamação. A participação da via opióide no seu mecanismo de ação é pouco provável, mas a modulação da neurotransmissão glutamatérgica de maneira dependente da dose é um mecanismo possível. Sua atividade antinociceptiva tambèm, está relacionada à redução da excitabilidade neuronal periférica, primeiramente de fibras mais finas como Aδ, ligadas diretamente à condução da dor.
Lok, Peter Yin Cheung. "Development of a novel minimally invasive scaffold system for spinal disc repair." Thesis, The University of Sydney, 2014. http://hdl.handle.net/2123/12583.
Повний текст джерелаSaad, Mohamad. "Méthodes statistiques et stratégies d'études d'association de phénotypes complexes : études pan-génomiques de la maladie de Parkinson." Toulouse 3, 2012. http://thesesups.ups-tlse.fr/1657/.
Повний текст джерелаMy thesis has focused on statistical methods and strategies to study the genetic components of complex human traits and especially of Parkinson's Disease (PD). My work was developed mainly in two contexts of genome wide association studies (GWAS): the detection of common variants and the detection of rare variants. GWAS is an optimal approach in which we have to control for the type I error and the type II error rates. Indeed, a large number of tests are performed. In addition, we must control for potential population stratification problems. Despite the large sample sizes in recent GWASs based on the single-marker test, they may have individually low power to detect common variants with small effects. The use of the multi-marker test may optimize the coverage of genetic variability and thus increase the power of GWAS. I have focused on the study of these tests, especially the "SNP-Set" test based on kernel machine regression and the haplotypic test. I studied the theoretical aspects of these tests and I evaluated the statistical properties in our empirical data for PD. In addition, in our analyses for PD, I developed imputation and meta-analysis techniques to increase the coverage of the genetic variability and the sample size. Association analysis for rare variants faces several challenges. The single marker test is not powerful to detect such variants and the cost of whole-genome sequence analyses for complex traits is still prohibitive. Our design is a cost-effective alternative which is based on the joint use of public sequence data and GWAS data. Several new tests have been proposed but, to date, their statistical properties are still unclear. On the genome-wide level, the type I error and the type II error rates may depend on several factors as gene length, allelic heterogeneity in the gene, LD between SNPs, overlap between genes and the correlation between the common variants and the trait. I evaluated the statistical properties of several methods in simulated data and also in our GWAS PD data. We show that several methods, based on the linear mixed model, are mathematically equivalent and some are special cases of others. In conclusion, we developed strategies and analytical methods which combine complementary approaches (Common Disease-Common Variant versus Common Disease-Rare Variant) to optimize the characterization of the genetic components of PD in particular and of complex traits in general
Tang, Yin-Han, and 湯茵涵. "The properties of Si-PANi/PANi and Si@rGO -PANi/PANi composite film synthesized by electrodeposition as anodes for Lithium-ion batteries." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/3r3kb9.
Повний текст джерела國立勤益科技大學
化工與材料工程系
105
The charge/discharge properties of SiNPs(silicon nanoparticles, SiNPs)-PANi(polyaniline, PANi)/PANi and Si@rGO(reduced graphene oxide, rGO)-PANi/PANi composite films prepared by electrodeposition and used as the anodic materials for assembling the lithium ion coin cells are investigated in this thesis. The characteristics of preparing materials are analyzed by SEM, TGA, XRD, TEM and XPS, respectively. Furthermore, the electrochemical properties of materials are studied by cyclic voltammetry (CV) and AC impedance analysis techniques. The effect of acids, charge passed and current density for preparing Si-PANi/PANi composite films on the properties of homemade materials are investigated. The maximum initial charge and discharge specific capacities of Si/PANi/PANi composite film with 2 layers obtained to be 875 and 2026 mAh g-1 with coulomb efficiency (CE) of 43 % are prepared in 0.5 M H2SO4 solution with the charge passed and current density of 0.125 C cm-2 and 1 mA cm-2, respectively. For this composite film, the discharge specific capacity at 50 charge/discharge cycles is found to be 660 mAh g-1. The optimal dispersivity of the silicon nanoparticles (NPs) and rGO (reduced graphene oxide) in Si@rGO powder is prepared in the water and ethanol (v / v = 1/1) mixing solution (named as Si@rGO (water-ethanol)) among the 4 preparing procedures. Compared with Si@rGO powder prepared with the other procedures, the Si@rGO-PANi/PANi (2 layers) composite film electrode prepared by co-electrodeposition of Si@rGO (water-ethanol) powder exhibits a maximum charge/discharge performance. The initial charge and discharge specific capacity of Si@rGO (water-ethanol)-PANi/PANi (2 layers) are obtained to be 1050 and 3839 mAh g-1, respectively, with CE of 27%. After 50 charge/discharge cycles, the discharge capacity is decreased to 542 mAh g-1. Compared with Si-PANi/PANi (2 layers) composite film electrode, the Si@rGO-PANi (2 layers) composite film electrode analyzed by AC impedance technique has a smaller charge transfer resistance (Rct), and hence has a higher initial discharge capacity due to the presence of rGO with high electric conductivity. However, the value of Rct of Si@rGO-PANi (2 layers) composite film is increased with the charge/discharge cycles due that the decomposition of Si NPs can’t be effectively inhibited by the presence of rGO, and hence the charge/discharge capacities at 50th cycle is similar to that of Si-PANi/PANi (2 layers) composite film. By setting the charge passed for preparing Si-PANi composite film as 0.125 C cm-2, the charge/discharge performances of Si-PANi / PANi (4 layers) and Si-PANi / PANi (8 layers) composite film electrodes are better than that of Si-PANi/PANi (2 layers) film electrode. The first discharge capacity of Si-PANi / PANi (4 layers) and Si-PANi / PANi (8 layers) composite film electrodes are obtained to be 4864 and 4140 mAh g-1, respectively. The discharge capacity of 4 and 8 layers composite film electrode are obtained to be 1192 and 1095 mAh g-1. Comparing with 2 layers composite film, the volume change of Si NPs within 4 and 8 layers composite film in the charge/discharge cycles can be effectively buffered by embedding within the multi-PANi films. This phenomenon can be demonstrated by the Rct of 4 and 8 layer composite films is less than that of 2 layers composite film.
Ye, Shi-Hao, and 葉士豪. "Preparation and Capacitive Characteristics of RuO2/PANI/Ti Composite Electrodes." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/72283702130656716380.
Повний текст джерела國立高雄應用科技大學
化學工程與材料工程系
97
Various polyaniline/titanium (PANI)/Ti composite electrodes were prepared by electrochemically depositing PANI on titanium foil via a cyclic voltammetry (CV) in 1.0 M H2SO4 aqueous at a scan rate of 200 mV/s. The effect of electrochemical operating conditions, annealing temperature and PANI morphology on the capacitive behavior of PANI/Ti composite electrodes was investigated by means of CV, Scanning Electron Microscope (SEM), Fourier Transform Infrared Spectrometer (FT-IR), UV-Vis absorption spectroscopy (UV-Vis), Near Infrared spectrometer (NIR) and electrochemical impedance spectroscopy (EIS). Results showed that the deposited PANI reveals a porous nanostructure with a high specific capacitance of 546 F/g. As the annealing temperature is higher than 110℃, the specific capacitance of PANI/Ti composite electrodes significantly decreases with increasing the annealing temperature caused by the thermal degradation of PANI. For the supercapacitor application, the RuO2/PANI/Ti composite electrodes were further fabricated by using catholic reductive deposition method. The resulting RuO2/PANI/Ti composite electrode exhibits a maximum specific capacitance of 456 F/g. As for ESI analysis, the simulated equivalent circuit mode suggested that the capacitive properties of PANI/Ti electrodes are markedly affected by the conductivity and doping level of PANI.
Huang, Yi-ping, and 黃怡萍. "Application of statistical experimental strategies to methanol oxidation on PANI-Pt composite electrode and characterization of ascorbic acid oxidation on PANI/PSSMA/Au composite electrode." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/39587167509757358641.
Повний текст джерела國立聯合大學
化學工程學系碩士班
97
This research aims to prepare a polyaniline (PANI) with porous structure and high surface area using the electrochemical method. The PANI was served as an electrode matrix. The platinum (Pt) is then deposited on the PANI to obtain a PANI-Pt modified electrode. We used statistical experimental strategies to analyze the methanol oxidation on PANI-Pt composite electrode. After that PANI was doped with Poly(4-styrene sulfonic acid-co-maleic acid) sodium salt (PSSMA) and then doped with aurum (Au) particle to form a composite film. This modified electrodes exhibited high electroactivity in the neutral solution and the electroactivity was evidenced by anodic oxidation of ascorbic acid. This research includes following two parts: Part I. Application of statistical experimental strategies to methanol oxidation on PANI-Pt composite electrode Fractional factorial design and response surface methodology coupled with central composite design were employed to study systematically the effect of such deposition conditions as deposited charge, reaction temperature for the formation of PANI and deposited charge for Pt on the methanol oxidation current for a PANI-Pt composite electrode. The deposited charge and reaction temperature of PANI are identified as the key variables that influence the methanol oxidation current. Through response surface methodology, an empirical equation for methanol oxidation current is fitted and plotted as contour diagrams in order to facilitate examination of experimental results. The contour plots indicate that the high value of methanol oxidation current (38 A/cm2 *gram of Pt) can be obtained at a deposited charge of PANI of 0.13 C/cm2 and a reaction temperature of 25 °C. The results of the confirmation experiments support the predictions of the statistical approach. Part II. Characterization of ascorbic acid oxidation on PANI/PSSMA/Au composite electrode PANI and PANI doping with PSSMA electrodes were prepared by cyclic voltammetry and then was doped with Au particle by a potentiostatic method to form a composite electrode. Their morphology, functional group, phase identification, and chemical composition were characterized by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). The results show that PANI/PSSMA electrode has higher doping level and lower content of by-products than PANI electrode. Cyclic voltammetry (CV) technique was used to investigate the electrochemical properties, electrocatalytic activity and stability of PANI, PANI/Au, PANI/PSSMA and PANI/PSSMA/Au for ascorbic acid oxidation. Result indicates that PANI/PSSMA/Au has a better activity and stability for ascorbic acid oxidation in neutral solution.
He, Yi-Lun, and 何宜倫. "Application of Graphene/PANI/PSS composite materials on Lithium ion battery." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/4q779a.
Повний текст джерела國立雲林科技大學
材料科技研究所
105
The main objective of the present investigation is to Graphene, Polyaniline(PANI), poly(styrene sulfonic acid)(PSS) composite were synthesized through chemical oxidation polymerization .The composite materials were combined with Li-ion cathode material LiCoO2. Graphene is high electronic conduction ability and PANI have excellent redox,Have excellent decentralized of PSS in organic aqueous. XRD analysis was used to characterize the crystal structure of these composite materials, surface morphology was analyzed by scanning electron microscopy. First,Graphene and PANI synthesized composites by varying the mass ratio on the lithium ion battery.The mass ratio of Graphene/PANI are 6%,4%,2%.EIS results show that the Rsei is 81.44 ohm,Rct is 112.4 ohm,Rtotal is 197.34ohm when the mass ratio is from 4%.ΔE is 0.197 by CVcurve data. Second,PSS add to Graphene/PANI composites by varying the mole ratio on the lithium ion battery. The mole ratio of PANI: PSS are 8:1,4:1,1:1.EIS results show that the Rsei is 57.43 ohm,Rct is 126.2 ohm,Rtotal is 186.8ohm when the mole ratio is from 8:1.ΔE is 0.203 by CVcurve data. Excellent decentralize characteristic of PSS can increase the composites porosity and increase lithium ion diffusion. Graphene/PANI/PSS composites are capacitance performance better than Graphene/PANI composites in high current by Charge and discharge analysis.Because ion diffusion is important than electronic conduction in high current work. The results will be so.
Lin, Hua-Wei, and 林華偉. "Study on the CNT/PANI composite anode for microbial fuel cell." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/91820947972361398097.
Повний текст джерела國立宜蘭大學
機械與機電工程學系碩士班
98
This study use carbon nanotubes (CNTs) and polyaniline (PANI) composite as the anode of microbial fuel cells (MFC). The CNTs are prepared by arc discharge and then combined with polyaniline by in situ polymerization. The obtained composite material are coated on stainless steel to form the anode of microbial fuel cell. Fourier transform infrared spectrometer (FTIR) and scanning electron microscopy (SEM) are adopted to observe the chemical composition and surface morphology of the CNTs/PANI composites. By the biochemical oxygen demand (BOD) testing for E.coli, it is verified that CNTs/PANI composite is compatible with microorganism. Make the proportion of two different CNTS composites, namely 5wt.% and 10wt.% CNTS in CNTs/PANI composites anode into fuel cell systems for performance comparison testing.The case of 10wt.% CNTs shows the highest power density of 6.506 mW/m2, compared to the uncoated stainless steel enhanced 317%, so CNTs/PANI composite suitable for application as a microbial fuel cell.
Maity, Krishna Prasad. "Charge transport in functionalized carbon nanotube and composite with polyaniline at low temperature." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/5098.
Повний текст джерелаLien, Zhi-Jie, and 連致傑. "A high sensitivity NO surface acoustic wave sensor based on Cu2+/PANI/WO3 composite film." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/43eqsg.
Повний текст джерела義守大學
電機工程學系
105
Monitoring of respiratory diseases can be achieved by detecting breath gases in human exhaled air or using complex medical equipment so far. These analyses are excessively time consuming. In this work, various concentrations of copper-ion-doped(Cu2+) PANI/WO3 film were coated onsurface acoustic wave (SAW) devices as sensors to detect ppb-level nitric oxide in air at room temperature. The humidity testing and collecting asthma patient breath samples were also used to evaluate potential practical application for human breath. The developed SAW sensors could sensitively detect 1-310 ppb NO in dry air. The sensing characteristics, including sensitivity, repeatability, reversibility and response time were studied.In addition, the interference effects from ammonia, carbon dioxide and nitrogen dioxidewere also investigated in this work, and they have been shown that the interferences could be neglected.However, the relative humidity influenced the detection properties of the prepared SAW sensors. Finally,the developed SAW sensors detected breath samples that were collected from asthma patients and NO values obtained by a SAW devicewere compared to those of the commercial equipment NObreath.
Lin, Hsueh-Chang, and 林學昌. "Effect of the concentration of doping acid and oxidant on the properties for Pani/Fe3O4@SiO2 nano composite." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/27102328248844163464.
Повний текст джерела國立雲林科技大學
環境與安全衛生工程系
103
This study consists of two parts, the first part of the catalyst is ammonia, TEOS as silicon source, using stober method prepared silica coated magnetic particles Fe3O4. The second part used intrinsically conductive polymer polyaniline with the above mentioned the silica coated Fe3O4 composite particles for reaction, by in situ polymerization prepared of the Pani / Fe3O4@SiO2 composite with aniline, ammonium persulfate as the oxidant, hydrochloric acid as dopant, under acidic conditions. Preparation of the Pani / Fe3O4@SiO2 composite by seven test instrument FT-IR, UV-VIS, XRD, SPSA, TGA, the Four-Point Probe and Alternating Gradient Magnetomete. FTIR, UV-VIS, SPSA, TGA results showed that has the characteristics of silica and polyaniline on Fe3O4 magnetic particles with the functional groups appear, this confirms that the composite particles composed of Fe3O4, silica and polyaniline. By XRD analysis, the results showed that pure polyaniline composed mainly of amorphous, the composite particles appear Fe3O4 strong diffraction peaks. Moreover, conductivity of the composite with the doping concentration of hydrochloric acid and Ani: APS ratio change, the highest conductivity at 1.2M and Ani: APS = 2: 1, this means that suitable doping concentration and the ratio of aniline and oxidant, conductivity of the composite can achieve the best results. Finally, AGM results show that, because Fe3O4 coated SiO2 and polyaniline, such that saturation magnetization (Ms) and residual magnetization (Mr) significantly reduce, however, the coercive force of the opposite trend.
Mavundla, Sipho Enos. "Synthesis and electrochemical characterisation of conducting polyaniline-fly ash matrix composites." Thesis, 2005. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9061_1259922060.
Повний текст джерела
 
 
 
The aim of this study was to produce useful composite materials from fly ash, a major waste product of coal combustion from power plants. Polyaniline-fly ash (PANI-FA) composites were prepared by in situ polymerisation of aniline in the presence of Fly Ash (FA) by two slightly different methods. In one case polystyrene sulphonic acid (PSSA) was used as a stabilizer and in another case the starting materials (aniline and FA) were aged before oxidation. The aging procedure formed nanotubes that have cross-sectional diameters of 50-110 nm. The other procedure produced nanotubes with a diameter of 100-500 nm and the length of up to 10&mu
m. The presence of metal oxides and silica in FA were responsible for the formation of nanorods in PANI-PSSA-FA.. The formation of the composites was confirmed by UV-Vis and FTIR. The UV-Vis showed maximum absorbance at 330-360 nm ( due to &pi
-&pi
* transition of benzoid rings) and 600-650 nm(due to charge transfer excitons of quinoid rings), which are characteristics of emaraldine base. The electrochemical analysis of the composites showed that the composites were conductive and electroactive. The Cyclic Voltammetry of PANI-PSSA-FA showed three redox couples which are characteristics of sulphonated PANI. The morphology of the composites was studied by Scanning Electron Microscopy (SEM) and showed that our methods gave composites with improved homogeneity as compared to other reported methods. Thermo Gravimetric analysis (TGA) showed that the presence of FA in the composites improves the thermal stability of the composites by up to 100 0C.
 
Bora, Pritom Jyoti. "Design and Tailoring of Polymer Composite Ultra-thin Films for Electromagnetic Interference Shielding." Thesis, 2017. https://etd.iisc.ac.in/handle/2005/4728.
Повний текст джерела"Caracterização eletroquimica do composito PSSO3H/PAni para aplicação em celulas a combustivel." Tese, Biblioteca Digital da Unicamp, 2005. http://libdigi.unicamp.br/document/?code=vtls000374343.
Повний текст джерелаSHU-SHIAO-YUN and 許曉雲. "Preparation and Characterization of Polyaniline/Multi-walled Carbon Nanotube (PANI/MWCNT) Composites." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/70709482175583868681.
Повний текст джерела南台科技大學
化學工程與材枓工程系
97
Abstract Polyaniline belongs to one of the intrinsically conducting polymers(ICP) and owns specific properties which include good environmental stability, ease preparation and so on. Likewise, multi-walled carbon nantube(MWCNT) possesses high flexibility, low mass density etc. This thesis contains part one is synthesizing polyaniline with carboxylic groups contained multi-walled carbon nanotubes(c-MWCNT) with different dodecylbenzene sulfonic acid (DBSA) concentrations. The results of electrical conductivity measurement indicate that adding 0.05 moles DBSA of composite, the conductivity decreased to 49.30 S/cm. By the thermal analysis, the Tonset2 of composites decrease with DBSA concentration. It is observed through transmission electron microscopy that the diameter of PANI/MWCNT composites is getting bigger with increasing DBSA concentrations. Besides, from the contact angle analysis, it can be realized that the composites tend to be more hydrophilic. Part two is synthesizing polyaniline with different c-MWCNT concentrations and discussing the morphology and other properties of composites further. The results indicate that the conductivity and thermal property of composites are improved when adding more MWCNT. It is observed through transmission electron microscopy that the morphology of composite looks like fiber. Part three is about synthesizing Epoxy/PANI/MWCNT composites and discussing the conductivity. The results indicate that the conductivity and film forming are better when Epoxy/PANI/MWCNT composite was prepared with 50phr CTBN.
Su, Shu-Nu, and 蘇淑女. "The Effectiveness of Composite Dressing on Cost of Dressing Change, Pain and Infection of Wound for Patients with Liver Resection." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/07934730473919527334.
Повний текст джерела中臺科技大學
護理系碩士班
103
Hepatic cancer is the second leading causes of top 10 causes of cancer death in Taiwan in 2013 and surgery is its primary treatment . There are no standards for dressing material and secure method. If the dressing becomes wound-adhered, it easily discomforts patients during change dressing. This study aimed to evaluate the effects of composite dressings on dressing change cost, wound pain and infections. Subjects were randomly assigned into control group and experimental group using quasi-experimental research design. In control group, gauze was used and taped around it to secure the dressing while composite dressing was directly used in the experimental group. We collected the post-surgery dressing change cost (gauze and tape, composite dressing, dressing change time, infectious waste quantity, dressing change nursing cost and total cost), wound pain and infection data for the first post-surgery 5 days. The results showed that dressing change material cost and total payment increased in the experimental group, the dressing change time reduction leaded to lower nursing cost and fewer infectious waste quantity; the daily intensity of pain before, during and after dressing change there were significant effect in the interaction between the dressing and time of two ethnic groups while there was no significant effect on wound infection between two groups. Composite dressings were more expensive, but it could reduce the cost in human resources and infectious waste quantity Thus, we strongly recommend the application of composite dressings for patients. Key word : post liver resection, composite dressing, dressing change cost, wound pain, infection
Ghosh, Soumyadeb. "Solvent Effects And Ionic Interactions In Polyaniline Systems." Thesis, 1995. https://etd.iisc.ac.in/handle/2005/1844.
Повний текст джерелаGhosh, Soumyadeb. "Solvent Effects And Ionic Interactions In Polyaniline Systems." Thesis, 1995. http://etd.iisc.ernet.in/handle/2005/1844.
Повний текст джерелаChao, Tzu-Yu, and 趙子祐. "Clinical evaluation of the association between dental anxiety and the pain experience related to cavity preparation of composite resin filling in adult patients." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/88290158774976628793.
Повний текст джерела國立陽明大學
牙醫學系
104
Dentine hypersensitivity is the short-lasting acute pain, commonly evoked by cold, hot or tactile stimuli, which cannot be attributed to other dental lesions or diseases. It is widely known that pain is not only influenced by the condition of a physical lesion, but also by emotional and cognitive factors. Among these factors, dental anxiety and pain catastrophizing are associated with dental pain. In the current study, we investigated 40 patients who received composite resin restoration in Taipei Veterans General Hospital. We assessed the pain during cavity preparation, clinical hypersensitivity experience in different treatment stages, and patients’ degree of dental anxiety and pain catastrophizing. The association between pain during cavity preparation, dental anxiety, pain catastrophizing, and the clinical hypersensitivity experience in different treatment stages is analyzed and discussed. Our results show that (1) the degree of dental anxiety is statistically positively correlated to the pain during cavity preparation. (2) Among the patients with different diagnoses for receiving composite resin restoration, including caries, cervical abrasion or previous failure in restoration, the pain during cavity preparation, dental anxiety and pain catastrophizing do not significantly differ. (3) Each of the clinical hypersensitivity experiences (intolerability, motivation to receive treatment and duration of symptoms) significantly differ across different treatment stages (before treatment, after cavity preparation, after filling and one week post-treatment), and the clinical hypersensitivity experiences in the second treatment stage(i.e., after cavity preparation) are statistically positively correlated to the pain during cavity preparation. In the study, we used a customized labeled magnitude scale – the Clinical Hypersensitivity Experience Questionnaire (CHEQ). The CHEQ combines the advantages of the traditional verbal descriptor scale and visual analog scale of pain assessment, and it is able to assess multiple aspects related to hypersensitivity, including intolerability, motivation to receive treatment and duration of symptoms. The findings would contribute to our knowledge about the dynamic experience of hypersensitivity during composite resin restoration. It highlights that both pain control and anxiety management is critical to the patients who receive composite resin restoration.
Riggien, Lance. "The reliability and validity of the composite orthopaedic rating scale as a measurement of clinical severity in the investigation of mechanical low back pain." Thesis, 2003. http://hdl.handle.net/10321/1958.
Повний текст джерелаThe aim of this investigation was to develop inter-examiner reliability as well as construct and concurrent validity of the Composite Orthopedic Ratin g Scale (CO RS) so that it may be used as an applicable measurement instrument for use in clinical trials relating to mechanical low back pain. This prospective, single - blinded construct and concurrent validity and inter-examiner reliability study consisted of 122 participants, all suffering from mechanical low back pain, specifically lumbar facet or sacro-iliac syndrome. The participants were only required for 1 visit where they were assessed and diagnosed using standardized diagnostic criteria. Thereafter, both the researcher and a blinded, independent examiner applied the tests contained in the Composite orthopedic Rating ScaLe (CO RS) to the participants. Subjective data was obtained using the Roland-Morris Disability Questionnaire and the Numerical Pain Rating Scale- 101. Objective data was obtained from the results of the appIication of the provocative Orthopedic test in the CORS
M
Mahanta, Debajyoti. "Synthesis And Environmental Applications Of Polyaniline And Its Nanocomposites." Thesis, 2011. https://etd.iisc.ac.in/handle/2005/2410.
Повний текст джерелаMahanta, Debajyoti. "Synthesis And Environmental Applications Of Polyaniline And Its Nanocomposites." Thesis, 2011. http://etd.iisc.ernet.in/handle/2005/2410.
Повний текст джерелаFORMICONI, Cristina. "LÈD: Il Lavoro È un Diritto. Nuove soluzioni all’auto-orientamento al lavoro e per il recruiting online delle persone con disabilità." Doctoral thesis, 2018. http://hdl.handle.net/11393/251119.
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