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Dissertations / Theses on the topic 'PV string'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

AHMAD, JAWAD. "A Unified Approach to Maximum Power Point Tracking and I-V Curve Determination of Photovoltaic Arrays from Real-time Measurements." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2674886.

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In recent years we have seen a considerable increase in the installed capacity of Photovoltaic (PV) power generating plants worldwide. This increase is primarily attributed to the decrease in the cost of installation and the awareness towards the sustainable power generation. However, the efficiency of the PV modules is still low. The Current vs. Voltage (I-V) characteristics of the PV generators is non-linear and changes with irradiance and temperature. For optimal utilization of PV sources, Maximum Power Point Trackers (MPPTs) are used. When the array is under uniform illumination, there is

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2

Elamri, Nuria Ali. "Strain diversity and identification of Pseudomonas syringae pv. maculicola and related pathovars." Thesis, University of the West of England, Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365189.

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3

Skandalis, Nikolaos. "Isolation and characterization of effector genes in Pseudomonas syringae pv. tomato strain DC3000." Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/11913.

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4

Rybak, Myrian Asucena. "Genetic determinants of host range specificity of the Wellington strain of Xanthomonas axonopodis pv. citri." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0011522.

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5

Baker, Christina Marie. "Strain typing and characterization of (sigma⁵⁴-) dependent transcriptional activator mutants in Pseudomonas syringae PV . tomato." Click HERE to connect, 2009. http://digital.library.okstate.edu/etd/Baker_okstate_0664D_10127.pdf.

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6

Yu, Yanhua. "Functional characterization of AvrBs3/PthA effectors in Xanthomonas oryzae pv. oryzae strain BAI3 from West-Africa." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20231.

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Xanthomonas oryzae pv. oryae (Xoo) est l'agent causal de la bactériose vasculaire du riz (BLB), maladie entraînant des pertes de rendement importantes dans la plupart des régions rizicoles, notamment en Afrique. La virulence des souches Asiatiques de Xoo dépend des effecteurs de la famille AvrBs3/PthA ou TAL (pour Transcription Activator-Like). Des études appro fondies sur le mode d'action des effecteurs TAL ont montré que l'activité de virulence ou d'avirulence que les TAL confèrent à la bactérie dépend essentiellement de leur interaction avec les gènes de sensibilité et/ou de résistance corr

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7

Tudor, Simone Michelle. "Molecular characterization of bacteriocin-like activity in tomato race-three strains of Xanthomonas campestris pv. vesicatoria." [Gainesville, Fla.] : University of Florida, 1999. http://etd.fcla.edu/etd/uf/1999/amp7408/tudor.pdf.

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Thesis (Ph. D.)--University of Florida, 1999.<br>Title from first page of PDF file. Document formatted into pages; contains vi, 121 p.; also contains graphics (some colored). Vita. Includes bibliographical references (p. 108-120).

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8

Sahin, Fikrettin. "Detection, identification and characterization of strains of Xanthomonas campestris pv. vesicatoria by traditional and molecular methods, and resistance in Capsicum species to Xanthomonas campestris pv. vesicatoria pepper race 6 /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487945320758679.

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9

Wonni, Issa. "Les bactérioses du riz dues à Xanthomonas oryzae au Burkina Faso : Diversité et identification de sources de résistance adaptées." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20174/document.

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La bactériose vasculaire du riz (BLB) et à stries foliaires (BLS) causées respectivement par Xanthomonas oryzae pv. oryzae (Xoo) et X. oryzae pv. oryzicola (Xoc) sont deux maladies émergentes en Afrique de l'Ouest, suite à l'expansion de la culture du riz et à l'introduction de variétés à haut rendement au cours de ces dernières décennies. Trois nouvelles races de Xoo ont été caractérisées en Afrique dont on a montré, sur la base d'une analyse génétique, leur spécificité africaine. En revanche, une étude réalisée sur une dizaine de souches de Xoc isolées au Mali en 2003, démontre qu'elles sont

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10

Kang, Hyojeung. "Molecular analysis of secretion genes located on the syr-syp genomic island of Pseudomonas syringae pv. syringae strain B301D." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1320.

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An RND (resistance-nodulation-cell division) transporter, called the PseC protein, was identified at the left border of the syr-syp genomic island of Pseudomonas syringae pv. syringae strain B301D. The PseC protein exhibited amino acid homology to a putative RND transporter of Ralstonia solanacearum with identities of 61% (i.e., PseC). The pseC mutant strain showed a larger reduction in syringopeptin secretion (67%) than syringomycin secretion (41%). A β-glucuronidase assay with a pseA::uidA reporter construct indicated that the GacS/A two-component system controls expression of the pse

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11

Appel, Maryke. "Cloning and identification of genes involved in the interaction between the bacterial stone fruit pathogen Pseudomonas syringae pv. syringae strain NV and plum trees." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52165.

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Thesis (PhD)--Stellenbosch University, 2001.<br>ENGLISH ABSTRACT: Bacterial canker of stone fruit, caused by Pseudomonas syringae pv. syringae, is one of the most destructive crop diseases in South Africa. Chemical control has failed completely and effective long-term management strategies will have to rely on the breeding of resistant host trees. To assist in such breeding programmes, investigations into the molecular basis of the interaction between P. s. pv. syringae and stone fruit trees have been undertaken in collaboration with the ARC-Fruit, Wine and Vine Research Institute in St

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12

"High Power Density, High Efficiency Single Phase Transformer-less Photovoltaic String Inverters." Doctoral diss., 2017. http://hdl.handle.net/2286/R.I.45041.

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abstract: Two major challenges in the transformer-less, single-phase PV string inverters are common mode leakage currents and double-line-frequency power decoupling. In the proposed doubly-grounded inverter topology with innovative active-power-decoupling approach, both of these issues are simultaneously addressed. The topology allows the PV negative terminal to be directly connected to the neutral, thereby eliminating the common-mode ground-currents. The decoupling capacitance requirement is minimized by a dynamically-variable dc-link with large voltage swing, allowing an all-film-capacitor i

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13

Li, Tsungchia, and 李宗家. "Integration Of Two Maximum Power Point Trackers For Two-string PV Panels In A 5kW DC Distribution System." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/72306275847005788469.

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碩士<br>國立中正大學<br>電機工程研究所<br>100<br>This thesis presents development of two maximum power point trackers (MPPTs) for two-string PV panels in a 5 kW DC distribution system. To deal with wide output voltage range of the PV panels, the proposed MPPT topology consists of buck and boost converters. For increasing the efficiency of PV panels, a perturbation and observation algorithm is employed to track the maximum output power of the panels. Two MPPT modules and a bi-directional inverter connected with the AC grid are utilized to establish the DC distribution system. Moreover, the two maximum power p

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14

"Substring Current-Voltage Measurement of PV Strings Using a Non-Contact I-V Curve Tracer." Master's thesis, 2020. http://hdl.handle.net/2286/R.I.57398.

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abstract: In the current photovoltaic (PV) industry, the O&M (operations and maintenance) personnel in the field primarily utilize three approaches to identify the underperforming or defective modules in a string: i) EL (electroluminescence) imaging of all the modules in the string; ii) IR (infrared) thermal imaging of all the modules in the string; and, iii) current-voltage (I-V) curve tracing of all the modules in the string. In the first and second approaches, the EL images are used to detect the modules with broken cells, and the IR images are used to detect the modules with hotspot cells,

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15

"Application of Radiovoltmeters: Quick and Quantitative Power Determination of Individual PV Modules in a String without using I-V Curve Tracers." Master's thesis, 2019. http://hdl.handle.net/2286/R.I.55612.

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abstract: The goal of any solar photovoltaic (PV) system is to generate maximum energy throughout its lifetime. The parameters that can affect PV module power output include: solar irradiance, temperature, soil accumulation, shading, encapsulant browning, encapsulant delamination, series resistance increase due to solder bond degradation and corrosion and shunt resistance decrease due to potential induced degradation, etc. Several PV modules together in series makes up a string, and in a power plant there are a number of these strings in parallel which can be referred to as an array. Ideally,

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16

Hsu, Shu-Ying, and 許淑瑩. "Variability and grouping of strains of Xanthomonas campestris pv. vesicatoria from Taiwan." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/35037181947520827298.

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碩士<br>國立中興大學<br>植物病理學系<br>86<br>The recent taxonomic studies showed that strains of Xanthomonascampestris pv. vesicatoria (Xcv) were heterogeneous population and weredivided into two genetically distinct groups (group A and group B). In orderto understand the variation and grouping of Xcv from Taiwan, a total of 152strains of Xcv from various localities of Taiwan were tested for theirphysiological, cell composition and molecular characteristics. Among the 152Xcv st

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17

Xu, Shu-Ying, and 許淑瑩. "Variability and grouping of strains of Xanthomonas campestris pv. vesicatoria from Taiwan." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/35874935838082571626.

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18

Su, Yu-Chi, and 蘇鈺琪. "Genotypic and Pathotypic Diversity of Xanthomonas oryzae pv. oryzicola Strains in Taiwan." Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5363014%22.&searchmode=basic.

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碩士<br>國立中興大學<br>植物病理學系所<br>107<br>Bacterial leaf streak (BLS) disease of rice, elicited by Xanthomonas oryzae pv. oryzicola (Xoc), was originally discovered in the Philippines in 1918 and recently found in Taiwan (Nantou and Yulin counties) in 2007. To understand the diversity of the BLS pathogens in Taiwan, 48 Xoc strains isolated at different time and locations were differentiated by their pathological reactions on 18 rice varieties, i.e. IR24, 12 IR24-derived IRBB lines, and 5 Taiwan commercial lines, and by PCR-amplified DNA fingerprints that primed to repetitive sequences. The genotypes o

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19

p'in, wang mei, and 王美蘋. "Phenotypeical study of fleQ mutant and complement strains in Xanthomonas campestris pv. campestris." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/26184195550551491945.

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碩士<br>亞洲大學<br>生物科技學系碩士班<br>95<br>Xanthomonas campestris pv. campestris (Xcc) is the pathogen causing black rot in cruciferous plants. It has previously demonstrated in our laboratory that a fleQ mutant is non-flagellated and immobile and expression of flagella genes fliE, fliQ, fliL, flgG, flgB, and flhF was depended on transcriptional activator, FleQ. In this work, it is shown that expression of fliA and fliC is also regulated by FleQ. In order to know if a plasmid-encoded fleQ gene can complement a mutation in fleQ, the fleQ gene was cloned into pBBad22K carrying an arabinose inducible promo

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20

Shigaki, Toshiro. "Differential epidemiological fitness among strains of Xanthomonas campestris pv. campestris and the genetics of pathogenicity." Thesis, 1996. http://hdl.handle.net/10125/9465.

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21

XU, XIU-HUI, and 許秀惠. "Characterization of strains of Xanthomonas campestris pv. vesicatoria from Taiwan and electron and light microscopy of tomato infected leaves." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/50217862167803337907.

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22

Niemann, Nicolaas Johannes Jacobus. "Molecular characterisation of the causal agent of bacterial leaf streak of maize / Nicolaas Johannes Jacobus Niemann." Thesis, 2015. http://hdl.handle.net/10394/15478.

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All members of the genus Xanthomonas are considered to be plant pathogenic, with specific pathovars infecting several high value agricultural crops. One of these pathovars, X. campestris pv. zeae (as this is only a proposed name it will further on be referred to as Xanthomonas BLSD) the causal agent of bacterial leaf steak of maize, has established itself as a widespread significant maize pathogen within South Africa. Insufficient information about the present distribution of the pathogen is available. The main aim of the study was thus to isolate and characterise the pathogen using molecular

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23

Garton, Jeffrey Earl. "Evaluation of race and copper tolerant strains of Xanthomonas axonopodis pv. vesicatoria, causal agent of bacterial leaf spot of bell pepper in Georgia." 2009. http://purl.galileo.usg.edu/uga%5Fetd/garton%5Fjeffrey%5Fe%5F200912%5Fms.

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