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Dissertations / Theses on the topic 'White pulp'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

DosSantos, Gary P. "Molecular genetic manipulations in the white-rot fungus Trametes versicolor." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33393.

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Although several enzymes presumed to be part of the delignification/kraft pulp biobleaching system of the white-rot basidiomycete Trametes versicolor have been studied, characterized, and even exploited as pulp treatments, the complete system remains poorly understood. Little is known about which enzymes are essential for delignification, how they are regulated, or whether there remain unknown enzymes essential to wood decay in this system. Auxotrophic mutants of T. versicolor 52J were developed and characterized. Plasmid pUC18 was complemented with the T. versicolor 52J genome to create a gen

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2

Thurmond, Thane S. "Indomethacin Reduces Splenic Red Pulp Macrophage Populations in Female New Zealand White Rabbits." Digital Commons @ East Tennessee State University, 1995. https://dc.etsu.edu/etd/2807.

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In an effort to elucidate the mechanism by which indomethacin (IN) attenuates the stimulatory effect of estradiol (E$\sb2$) on rabbit splenic red pulp macrophages (RPM), thirty-nine female New Zealand White rabbits were divided into 10 groups: ovariectomized (OVX), OVX/IN at 0.1 and 5.0 mg/kg body weight (bw)/day; sham OVX (SOVX), SOVX/IN at 0.1 and 5.0 mg/kg bw/day; OVX/25 mg E2, OVX/25 mg E$\sb2$/IN at 0.1 and 5.0 mg/kg bw/day; intact Control. Quantitative changes in RPM population in response to the treatments were measured using a 0 to 4 histologic grading scale. Estradiol treatment result

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3

Bumeister, L. V., and E. O. Galeta. "Determining of patterns of distribution and concentration of white pulp in various parts of the human spleen using scanning electron microscopy." Thesis, Sumy State University, 2017. http://essuir.sumdu.edu.ua/handle/123456789/58519.

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For the immune function of the spleen is responsible white pulp, which is only 15 - 20% of the mass of the organ. Distribution of white pulp in the spleen is uneven. We can assume that transplantation of splenic tissue, which contains more white pulp, will facilitate faster and more efficient recovery of immune function.

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4

Sjölander, Anna. "The effect of water chemistry and fibre-size distribution on dissolved air flotation efficiency." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-19306.

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<p>The purpose of this diploma work was to investigate the problem of insufficient fibre recovery in the dissolved air flotation-cell at the new thermomechanical pulping-line at Braviken Paper Mill. An investigation of the effect of process parameters on the removal efficiency in the micro-flotation process was undertaken.</p><p>The experiments were carried out for two setups at the Noss pilot plant with a small-scale flotation unit. Factorial design helped plan the experiments and four factors were controlled; temperature, fibre-size distribution, water quality and feed concentration. Three s

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5

D’avila, Ariel Leandro. "ESTUDO ELETROQUÍMICO E DA CORROSÃO DO AÇO ASTM 285 GRAU C, NAS REGIÕES DE SOLDA E DA ZONA TERMICAMENTE AFETADA, EM SOLUÇÕES DE LICOR BRANCO, UTILIZADO EM DIGESTORES DA INDÚSTRIA DE PAPEL E CELULOSE, E SEUS PRINCIPAIS COMPONENTES." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2016. http://tede2.uepg.br/jspui/handle/prefix/1477.

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Made available in DSpace on 2017-07-21T20:43:49Z (GMT). No. of bitstreams: 1 Dis_Ariel_final.pdf: 5083548 bytes, checksum: acac140ede5eeafdd769aa58a612e863 (MD5) Previous issue date: 2016-08-25<br>This work aims to study the electrochemical steel ASTM A285 Grade C and the same welded with coated electrode AWS E 7018 in the solution of industrial white liquor used in pulp and paper industry by the Kraft method. Samples were withdrawn by electroerosion into three regions: the base metal (BM), the heat affected zone (HAZ) and at the weld metal (WM). Corrosion rates of the three metal regions we

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6

Rautenbach, John White. "Engineering a novel automated pump control system for the mining environment / John White Rautenbach." Thesis, North-West University, 2007. http://hdl.handle.net/10394/4514.

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South Africa is experiencing serious electricity supply problems. A major concern is the high peak electricity demands between 18:00 and 20:00. This peak is primarily caused by the growing residential sector. Unfortunately, changing people's behaviour to reduce the evening energy peak is difficult. An easier approach will be to focus on other sectors such as the industrial and mining sectors. South African mines contribute 18% of the country's electricity consumption. Of the total mining electricity bill 40% is consumed by water pumping systems. Manual load shifting is attempted on approximate

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7

Xu, Hanchang. "An assessment of corrosion and erosion-corrosion behaviour of austenitic cast iron and surface coatings for pump applications." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/1159.

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8

Reymond, Sean. "Modeling the pull force while pultruding epoxy/glass and polyester/glass composites." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0034/MQ38702.pdf.

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9

Wagemann, Stephen Scott. "Building a Raman laser pump source capable of generating flexible pulse durations while maintaining high spatial quality." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/wagemann/WagemannS0509.pdf.

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A detailed characterization of a Raman pump laser throughout the construction process is reported. Due to specific requirements for the pulsed Raman experiment, there were no commercially available pump lasers capable of meeting our specifications. The pump source must produce high energy pulses of 50mJ to 100mJ with variable duration centered at 200ns. To create this pump source, the pulses are gated from a CW source and then amplified with a high gain Nd:YAG amplification system. High spatial quality is also a necessity as the laser needs to be coupled into a small diameter waveguide functio

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10

Vilca, Velazco Mirella Francis. "Apertura cameral modificada en pulpectomías en paciente con síndrome de Wolff- Parkinson- White. Reporte de caso." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2020. https://hdl.handle.net/20.500.12672/16130.

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El síndrome de Wolff - Parkinson- White (SWPW) es una anormalidad cardiaca congénita que consiste en la presencia de un haz anómalo (haz de Kent), que altera el sistema normal de conducción uniendo directamente aurículas y ventrículos. Los pacientes afectados con cardiopatías congénitas (arritmias) requieren el menor tiempo operatorio en sala de operaciones para eliminar focos de infección odontogénica. La investigación realizada describe el tratamiento de terapia pulpar con una técnica de acceso cameral modificado guiada por la lesión. Presenta un reporte de caso clínico de una pacient

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11

Sarakbi, Ahmad. "Contribution to the development of electrochemical methods for liquid chromatographic analysis and drug quality monitoring." Doctoral thesis, Universite Libre de Bruxelles, 2014. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209207.

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The present thesis work is dedicated to the implementation of novel electrochemical methods for the assay of drug compounds such as paracetamol and ascorbic acid and biologically relevant biothiols such as cysteine and glutathione. Particular attention has been paid to the development and application of amperometric detectors allowing for a readily surface renewing and for highly selective and sensitive assays.<p>Coupling of a screen printed electrochemical detector with a monolithic chromatographic column was performed for high-throughput analysis along with selectivity, sensitivity and good

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12

Boni, Leonardo de. ""Não linearidades ópticas em azocompostos"." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-16032005-102425/.

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Neste trabalho, são estudadas as alterações das propriedades ópticas lineares e não lineares de soluções de azocompostos devidas aos mecanismos de isomerização e às alterações das propriedades estruturais com a temperatura. A dependência da transição pipi* com a estrutura linear dos azocompostos é notada já nas medidas dos espectros de absorção em função da temperatura para o isômero trans. Através do conhecimento dos níveis de energia e dos tempos de relaxação via isomerização, foi possível obter a dinâmica entre os isômeros cis e trans. As medidas não lineares forneceram propriedades

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13

Drozd, Michal. "Vybrané části stavebně technologického projektu psychiatrické kliniky Fakultní nemocnice Brno." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409919.

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The subject of my diploma thesis are selected parts of the construction technology project of the psychiatric clinic of the University Hospital Brno based on the provided project documentation. It is an extension of a new six-storey building to the existing buildings. The thesis contains a technical report to the construction technology project, the coordination situation of the construction, the situation of wider transport routes, time and financial plan by objects, study of the realization of the main technological stages, a site equipment design, a design of a machine set, technological re

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14

Stewardson, Carolyn Louise, and carolyn stewardson@anu edu au. "Biology and conservation of the Cape (South African) fur seal Arctocephalus pusillus pusillus (Pinnipedia: Otariidae) from the Eastern Cape Coast of South Africa." The Australian National University. Faculty of Science, 2002. http://thesis.anu.edu.au./public/adt-ANU20030124.162757.

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[For the Abstract, please see the PDF files below, namely "front.pdf"] CONTENTS. Chapter 1 Introduction. Chapter 2 Gross and microscopic visceral anatomy of the male Cape fur seal with reference to organ size and growth. Chapter 3 Age determination and growth in the male Cape fur seal: part one, external body. Chapter 4 Age determination and growth in the male Cape fur seal: part two, skull. Chapter 5 Age determination and growth in the male Cape fur seal: part three, baculum. Chapter 6 Suture age as an indicator of physiological age in the male Cape fur seal. Chapter 7 Sexual dimorphism in th

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15

Pilík, Václav. "Bydlení pro seniory." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-410076.

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The diploma thesis is elaboration of project documentation of the object Housing for seniors in Brno - Dolní Heršpice. The site is located un the area with the planned development of the city. The object is detached, three-story with a partial basement. The building is divided into five parts. The building is based on concrete foundation pads and strips. The structural construction is a combined column and wall system in technological design as monolithic concrete. The building is designed as a low energy building, with contact insulation (ETICS). The whole building is designed with forced air

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16

Stebbing, Derrick. "Fungal and enzyme treatment of mechanical pulp and paper mill white water : impact on white water, fiber, and paper properties." Thesis, 2002. http://hdl.handle.net/2429/12246.

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Growing economic and environmental concerns have resulted in a move to reduce fresh water utilization at mechanical pulp and paper mills. This involves retaining and reusing process waters, which consequently provides benefits such as lower effluent treatment costs, energy savings, and improved environmental performance. However, mills experience major problems when attempting water system closure, such as the accumulation of dissolved and colloidal substances (DCS) within the water system. The buildup of DCS can lower paper quality, increase rates of corrosion, and reduce paper machine

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17

Yang, Wen-Cheng, and 楊文成. "Study on the Effects of Pulp and Coating Color Co-Binder on the Optical Brightening Agent Added Unfilled White Paper." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/98255362073037142940.

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碩士<br>大葉大學<br>環境工程學系碩士班<br>94<br>ABSTRACT In order to maintain a global competitive capability, paper mills are dedicated to producing products that meet the specification of their clients while having increased bulk, decreased fiber content and optimal performance. In this regard, utilizing high yield bleached chemithermomechanical pulp (BCTMP) allows for bulk and opacity increases. Incorporating the pulp, however, risks the problems of color reversion and lower brightness and whiteness because of the high lignin content in BCTMP. The problems can be ameliorated through changing stock bl

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18

Ramakatana, Joseph Glen Kgopong. "Effects of Orange (Citrus sinensis) Pulp-buffalo grass (Cenchruis cilliaris) silage on digestibility, growth performance and blood metabolites of windsnyer-type and large white x landrace crossed pigs." Diss., 2019. http://hdl.handle.net/11602/1333.

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MSCAGR (Animal Science)<br>Department of Animal Science<br>The study evaluated the nutritive value of orange pulp- buffalo grass (OPBG) silage as a po-tential pig feed. In experiment 1, OPBG was ensiled in 58 one-litre jars, split into Reno-zyme® enzymes (containing α-amylases and β-endo 1, 3; 1, 4 beta glucanase) (denoted OPBGE) and 18 without enzyme (denoted OPBG). Samples were collected from the lab on days 7, 15 and 30 in a three by two factorial design (period by treatment). In Experiment 2, 12 South African Windsnyer-type (SAWIP) (27.2±3.9 kg) and 12 Large White- Landrace crosses (LW x L

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19

Ren, Wei. "Development of a Free Lime Monitoring System for the Kraft Recovery Process using Zeta Potential." Thesis, 2014. http://hdl.handle.net/1807/65600.

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The presence of Ca(OH)2 (or free lime) in lime mud can cause many problems in the recovery process of kraft pulp mills. Conventional free lime analyses require extensive laboratory work and give inconsistent results. A systematic study was performed to determine if zeta potential, a quickly measurable dispersion characteristic, can be used to indicate the presence of free lime in the recovery process. Measurements were made on synthetic wet lime mud to simulate samples collected after the white liquor clarifier in pulp mills. The results show that zeta potential increases from negative to posi

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20

Lowaton, Allenn Dela Cerna, and 羅艾倫. "Overstress-Free Charge Pump White LED Driver." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/14780164944889693939.

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碩士<br>國立臺北大學<br>電機工程研究所<br>100<br>This thesis presented a white light emitting diode (LED) driver that utilized charge pump in boosting the input voltage. The output voltage had been made sure that it was sufficient enough to overcome the forward voltage of the LED as well as provide voltage headroom for the transistors in every LED channel branch. The charge pump and its peripheral circuit, the clock booster circuit, do not suffer from gate-oxide overstress. Gate oxide overstress arose when the potential difference of a certain junction of a transistor exceeded the supply voltage. Moreover, t

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21

Tingfang, Zheng, and 鄭廷芳. "Design Of Current Mode Charge Pump For White LED Circuit." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/77194298825018286545.

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碩士<br>亞洲大學<br>光電與通訊學系碩士班<br>100<br>Power efficiency is an important issue for portable electronic devices. The major part of power consumption of portable device is LED backlight module. Therefore, deign of high efficiency backlight module is required to extend the operation time. Nowadays white light-emitting diodes (WLEDs) have replaced cold cathode fluorescent lamps (CCFL) as backlight modules in portable electronics in terms of power efficiency and size. This paper presents a current mode DC-DC converter for WLED and OLED that are all popular light source for portable devices.

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22

Chang, Chih-Cheng, and 張智程. "A Regulated High Voltage Charge Pump Circuit for White LED Driver." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/38153716231078403645.

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碩士<br>國立雲林科技大學<br>電子與光電工程研究所碩士班<br>102<br>This study presents a new regulated charge pump circuit for driving multiple white LEDs. Most of the LED driver circuits use inductors for energy storage, but inductors have some disadvantages, including large size, high cost and electromagnetic interference. Therefore, a charge pump circuit that only uses capacitors for energy storage is applied in study. The charge pump circuit has many advantages, surch as small size, low cost and no electromagnetic interference, so it can totally replace the LED driver with inductors. However, most of the tradition

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23

Shih, Chao-Hul, and 施照輝. "Enhancement of White-Rot Fungi Pretreatment on the Bleachability of Sulfate Pulps." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/65371666206640120063.

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博士<br>國立臺灣大學<br>森林學研究所<br>91<br>Kraft pulps prepared from softwood Pinus taiwanensis and hardwood Eucalyptus grandis, milled wood lignin and lignin-carbohydrate complex were prepared according to Björkman 1956 Standard Method in laboratory. The basic physical and chemical properties of these materials were analyzed. Nine common white-rot fungi in Taiwan were selected through screening of biobleaching activity. After examining of physiological properties and enzyme activity such as lignin peroxidase in vitro, Phanerochaete chrysosporium, Trametes versicolor and Lenzites betulina sho

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24

Chandra, Richard P. "Improving the brightness and bleachability of douglas-fir mechanical pulps using white-rot fungi and laccase enzymes." Thesis, 1999. http://hdl.handle.net/2429/8900.

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Douglas-fir is a common west coast tree species, possessing long and strong fibers, however, the low brightness and poor bleachability of mechanical pulps from this tree have thus far limited its use to low yield Kraft pulps and lumber. The heartwood of Douglas-fir has been shown to contain a high amount of polyphenolic compounds such as dihydroquercetin and/or polymerized forms of these compounds. These compounds have been shown to undergo autooxidation, condensation, polymerization and metal chelation during either the aging of the tree or mechanical pulping of the wood, resulting in t

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25

Stewardson, Carolyn Louise. "Biology and conservation of the Cape (South African) fur seal Arctocephalus pusillus pusillus (Pinnipedia: Otariidae) from the Eastern Cape Coast of South Africa." Phd thesis, 2001. http://hdl.handle.net/1885/48199.

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Chapter 1 Introduction. Chapter 2 Gross and microscopic visceral anatomy of the male Cape fur seal with reference to organ size and growth. Chapter 3 Age determination and growth in the male Cape fur seal: part one, external body. Chapter 4 Age determination and growth in the male Cape fur seal: part two, skull. Chapter 5 Age determination and growth in the male Cape fur seal: part three, baculum. Chapter 6 Suture age as an indicator of physiological age in the male Cape fur seal. Chapter 7 Sexual dimorphism in the adult Cape fur seal: standard body length and skull morphology. Chapter 8 Repro

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