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Dissertations / Theses on the topic 'Cationic starch'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Hansel, Philip A. "Efficient Flocculation of Microalgae for Biomass Production Using Cationic Starch." Ohio University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1313779752.

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2

Anthony, Renil John. "Cationic Starch Synthesis, Development, and Evaluation for Harvesting Microalgae for Wastewater Treatment." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/2005.

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In the quest for a feedstock for the production of biofuels, microalgae are showing potential. High photosynthetic efficiency, combined with high lipid content and low fresh water requirement, has contributed to the 'biofuels feedstock' status of microalgae. In some communities, microalgae have also been cultivated in wastewater in facultative lagoons to remove phosphorus and nitrogen through the growth of microalgae. With such systems in place, complete biological wastewater treatment can be achieved and the harvested microalgae could provide feedstock for biodiesel and various other bioprodu

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3

Yamada, Hiroe [Verfasser], and Claus-Michael [Akademischer Betreuer] Lehr. "Starch based cationic polymers for gene delivery / Hiroe Yamada ; Betreuer: Claus-Michael Lehr." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2014. http://d-nb.info/1120409462/34.

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4

Allison, Elizabeth Ann. "Blending of Fibers Selectively Pretreated with Cationic Starch with Non-Treated Fibers for Improved Sheet Strength." Miami University Honors Theses / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1114188942.

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5

Kochkina, N. E., O. A. Skobeleva, and V. A. Padokhin. "Investigation of Nanocomposite Based on Cationic Starch and Na-montmorillonite as Adsorbent for dye Removal." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35241.

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Nanocomposite based on cationic starch and Na-montmorillonite was obtained by solid-state procedure in a vibration mill with balls. Adsorption capacity of the nanocomposite towards Acid Scarlet dye was evaluated. This sorbent was found to provide a high degree of the dye removal from aqueous solutions. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35241

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6

Au, C. O. "The study of retention and function of C-14 labelled cationic and non-ionic starch in paper." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330099.

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7

Maxwell, Kendra Elaine. "Cationic polymer enhanced hydrolysis of cornstarch for the production of biofuels." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43661.

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The mechanism through which a charged polymer cationic polyacrylamide (C-PAM) operates to increase the rate of cornstarch hydrolysis was investigated. The main objective was to determine the major factors that affect the mechanism so that these parameters may be adjusted to achieve optimal hydrolysis rates. A combination of analytical methods including dynamic light scattering, optical imaging, and uv-vis spectroscopy were used to study polymer, starch, and enzyme interactions as a function of process conditions. It was found that C-PAM binds strongly to starch granules, increasing solubili

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8

Lundström, Lisa. "Polyelectrolyte multilayers of cationic and anionic starch and their use for improving the strength of papers made from mechanical pulps." Licentiate thesis, KTH, Fibre and Polymer Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10537.

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<p>Graphic paper is experiencing severe competition from other materials and, most of all, from other media. This means there is a great need to improve paper quality while reducing raw material and production costs. Polyelectrolyte multilayer (PEM) treatment (i.e., consecutively adding cationic and anionic polyelectrolytes to the charged surface of wood fibres and fines, to form layers of these polyelectrolytes on the fibres/fines) has in recent years been found to offer great potential both to introduce new properties and to improve the mechanical properties of papers made of the treated fib

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9

Chakravarty, Sanjay. "DEVELOPMENT OF CREEP TESTER AND TO INVESTIGATE THE EFFECT OF CATIONIC STARCH ON TENSILE CREEP ON SOFTWOOD BLEACHED KRAFT HANDSHEETS AT CONSTANT HUMIDITY." Miami University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=miami1143250391.

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10

Bernardo, Angela Silva Di. "Influência das condições de aplicação de polímeros catiônicos na eficiência da floculação." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/18/18138/tde-02122015-112130/.

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Tendo em vista que os amidos (catiônicos ou não) não são nocivos a saúde do ser humano, uma vez que são utilizados na indústria de alimentos, e observando-se a potencialidade do seu uso como auxiliares de floculação, foi proposto o presente trabalho. Consiste na realização de ensaios de coagulação (com sulfato alumínio), floculação e sedimentação em equipamento de reatores estáticos, objetivando verificar a influência do gradiente de velocidade e do tempo de agitação na floculação com polímero sintético catiônico e amidos de milho e mandioca catiônicos. Concluiu-se que as condições de aplicaçã

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11

Bigand, Virginie. "Modifications chimiques des hémicelluloses pour une application papetière." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10213.

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Dans les procédés classiques d'extraction de la cellulose pour la fabrication de la pâte à papier à partir de bois, les hémicelluloses sont dégradées et sont brûlées pour alimenter l'usine en énergie. En incluant une étape préalable d'extraction de ces polysaccharides, ils pourraient alors être réintroduits en aval du procédé, après cationisation, en tant qu'agent de renfort dans la pâte à papier. Dans ce travail, la cationisation de deux hémicelluloses modèles commerciales de type galactomannane et xylane a été effectuée par éthérification avec un époxyde cationique en solution aqueuse basiqu

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12

Horimoto, Lídia Kazumi [UNESP]. "Cationização de amidos de tuberosas tropicais para fabricação de papéis." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/90509.

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Made available in DSpace on 2014-06-11T19:24:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-02-17Bitstream added on 2014-06-13T20:52:19Z : No. of bitstreams: 1 horimoto_lk_me_botfca.pdf: 643530 bytes, checksum: a89cce04a174ddfc6169b6fc1e10b14b (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Universidade Estadual Paulista (UNESP)<br>Apesar dos amidos serem quimicamente iguais, a organização e funcionalidade desses polímeros dependem das propriedades físico-químicas de cada fonte botânica. Esses amidos podem sofrer diferentes modificações com a finali

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13

Horimoto, Lídia Kazumi 1977. "Cationização de amidos de tuberosas tropicais para fabricação de papéis /." Botucatu : [s.n.], 2006. http://hdl.handle.net/11449/90509.

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Orientador: Claudio Cabello<br>Banca: Claudio Angeli Sansígolo<br>Banca: José Luis Agapito Fernandes<br>Resumo: Apesar dos amidos serem quimicamente iguais, a organização e funcionalidade desses polímeros dependem das propriedades físico-químicas de cada fonte botânica. Esses amidos podem sofrer diferentes modificações com a finalidade de aperfeiçoar certas características para aplicações industriais específicas. Dentre os amidos modificados, os catiônicos são largamente utilizados na fabricação de papel/papelão a fim de aumentar sua resistência física e mecânica. Neste trabalho, amidos de man

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14

Tillich, Daniel, and Christoph Lehmann. "Estimation in discontinuous Bernoulli mixture models applicable in credit rating systems with dependent data." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-222582.

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Objective: We consider the following problem from credit risk modeling: Our sample (Xi; Yi), 1 < i < n, consists of pairs of variables. The first variable Xi measures the creditworthiness of individual i. The second variable Yi is the default indicator of individual i. It has two states: Yi = 1 indicates a default, Yi = 0 a non-default. A default occurs, if individual i cannot meet its contractual credit obligations, i. e. it cannot pay back its outstandings regularly. In afirst step, our objective is to estimate the threshold between good and bad creditworthiness in the sense of dividing th

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15

CHIU, YUAN-BO, and 邱元柏. "Effect of Sodium Metasilicate and Cationic Starch on Stiffness and Folding Endurance of Worship Paper." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/50204676045618121332.

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碩士<br>大葉大學<br>環境工程學系碩士在職專班<br>103<br>This research is based on sodium metasilicate and cationic starch added in wet end to improve the stiffness properties of worship paper and the insufficiency of folding endurance. It is used single chemical addition, sequential chemical addition, and different doses orderly to conduct the experiments. The test results showed that: the stiffness properties raised 29% and the folding endurance raised 133% through single chemical addition of sodium metasilicate; the stiffness properties raised 168% and the folding endurance raised 50% through added cationic st

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16

Liao, Lacotes Jia-Sheng, and 廖佳聖. "Studies on the Physicochemical Characteristic of Cationic Starch and Its Effects on the Paper Strength of Recycled Paper by Degree of substitution." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/34904035776045338479.

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碩士<br>國立中興大學<br>食品科學系<br>90<br>In this study, cassava starch was used as test sample which was reacted by CHPTAC （3-chloro-2-hydroxypropyl trimethyl ammonium chloride）to form a cationic starch . The objectives of this study were to evaluate the optimal conditions for cationization of cassava starch by using an aqueous alcoholic-alkaline process and the physiochemical properties of cationic starches and its effect on the paper strength of recycled paper by different degree of substitution. The optimal of reaction temperature for cationization of cassava starch, using an aqueous a

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17

Yeh, Ching-Lung, and 葉慶隆. "Effects of Adding Cationic Polymeric Aids, Bentonite, and Starch on the Physical Properpties of Corrugating Medium Made from Taiwanese Old Corrugated Containerboard." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/35355251021578397722.

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碩士<br>大葉大學<br>工業工程與科技管理學系碩士在職專班<br>98<br>Corrugating medium producers in Taiwan usually adopt locally collected old corrugated containerboard (TOCC) boxes as the raw materials. Due to the declining quality of heavily recycled stock, the entailing pulp suspensions often have poor drainage performance, inferior formation and poor strength properties that are problematic in meeting adequate quality standard and production efficiency. Most mills seek to add chemicals to amend the problems and to find the most economical and efficiency means of achieving enhanced ring-crushing and bursting strength

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18

Lee, Li Ching, and 李麗珍. "Study the Preparation of Cation Starch and the Separation Action of Cation Starch on Oil in Water Emulsion." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/32048979678197322053.

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碩士<br>中原大學<br>化學工程研究所<br>84<br>The pollution treatment of oil containing waste water, especially on the oil in water or water in oil emulsion is important on today's environment. And in the process of treatment, generally , there is with organic polymer as a untiemulsiierf in the chemical method, such as polyacrylamide and quaternary ammonium cationic starch that can destroy the surfactant around the oil in water emulsion and make the oil layer rise to the surface of water. The guaternar

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19

Lin, Yi-Tian, and 林義添. "Application of Different DS-Cationic Starches to Modified Talcs Filled Paper." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/73100382305005496461.

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碩士<br>大葉大學<br>環境工程學系碩士班<br>101<br>Fillers play important roles in the manufacturing of fine paper. Because fillers are cheaper than pulp fibers, proper application of inorganic minerals as fillers can effectively reduce production cost. Adding fillers in papermaking wet end can increase drainage rate, paper brightness and opacity, however, filler particles tend to interfere hydrogen bonding among fibers leading to decreased strength properties. In this study, commercial cationic starch and self-prepared cationic starch were gelatinized and used to modify surface charges of talc plates which we

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20

洪妙珠. "Effect of cationic starches and mixed office wastepaper pulp contents on the retention and the handsheet properties in the neutral papermaking system." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/75815330938836516393.

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碩士<br>國立屏東科技大學<br>森林系<br>91<br>Using recycled fiber as part of the stuff for papermaking has been a necessity. The application of recycled fiber, however, would affect the final strength properties of the products due to the drying and rewetting of the fibers. Starch, especially cationic starch was thus used to mitigate the defect. The objectives of this study are to evaluate the effect of the cationic starch dosage and the adoption of recycled mixed office waste (MOW) fiber on the retention and handsheet properties in the currently mainstreamed neutral papermaking system. The resul

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