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Dissertations / Theses on the topic 'Leaf Streak'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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1

Jayawardana, Malini Anudya. "Genetic Mapping of Resistance to Bacterial Leaf Streak in Triticale." Thesis, North Dakota State University, 2017. https://hdl.handle.net/10365/28661.

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Bacterial leaf streak (BLS), caused by Xanthomonas translucens pv. undulosa (Xtu), is an important disease of wheat worldwide. The best way to control this disease in the field is the use of resistant cultivars. Although source of resistance is lacking in wheat, several triticale accessions have high levels of resistance. However, resistance in triticale has not be investigated. The main objective of this project was to map the BLS-resistance gene in triticale. A high density genetic linkage map was constructed in a triticale recombinant inbred line population covering all wheat and rye chromo
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2

Sapkota, Suraj. "Identification and Genomic Mapping of Resistance to Bacterial Leaf Streak in Wheat." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27696.

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Bacterial leaf streak (BLS) of wheat, caused by Xanthomonas translucens pv. undulosa, is an important disease of wheat worldwide. Use of resistant cultivars is the most preferred way of managing BLS. The objective of this research was to identify highly resistant wheat germplasm and map BLS resistance genes. Two collections of wheat germplasm, including triticale and spring wheat, were evaluated for their reactions to BLS. A wide range of reactions from highly resistant to highly susceptible were observed for both collections. Five triticale accessions and twenty-four spring wheat genotypes wi
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Mwangi, Symon Munanda. "Status of Northen Leaf Blight, Phaeosphaeria maydis Leaf Spot, Southern Leaf Blight, Rust, Maize Streak Virus and Physiologic Specialization of Exserohilum turcicum in Kenya." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/26093.

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Exserohilum turcicum, Phaeosphaeria maydis, Bipolaris maydis, Puccinia polysora, Puccinia sorghi and maize streak virus were the most serious maize pathogens found in Kenya during a 1995/96 survey of 65 farms representing all the agro-ecological zones. Exserohilum turcicum - induced blight was observed in all maize producing areas with disease incidence reaching over 45%. Lesions were sometimes over 400 mm long by 25 mm in width. Southern leaf blight caused by Bipolaris maydis was most severe in the Kenyan maize granary located in the highlands west of the Rift Valley where it occurred alone
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4

Wu, Shuchi. "Structural and functional characterization of a Xanthomonas Type III effector." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/73219.

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Rice bacterial leaf streak disease caused by Xanthomonas oryzae pv. oryzicola (Xoc) is one of the most important rice bacterial diseases. Xanthomonas type III effector gene avrRxo1 is conserved in diverse Xoc strains and its homologues have been identified from several other gram-negative bacteria species such as Burkholderia and Acidovorax. In this research, we studied the protein structure of AvrRxo1 and illustrated its virulence mechanism.We determined the three-dimensional structure of the complex of AvrRxo1 and its cognate chaperone Arc1 (AvrRxo1 required chaperone 1). The AvrRxo1: Arc1
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Dhau, Inos. "Detection, identification, and mapping of maize streak virus and grey leaf spot diseases of maize using different remote sensing techniques." Thesis, University of Limpopo, 2019. http://hdl.handle.net/10386/2866.

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Thesis (PhD. (Geography)) --University of Limpopo, 2019<br>Of late climate change and consequently, the spread of crop diseases has been identified as one of the major threat to crop production and food security in subSaharan Africa. This research, therefore, aims to evaluate the role of in situ hyperspectral and new generation multispectral data in detecting maize crop viral and fungal diseases, that is maize streak virus and grey leaf spot respectively. To accomplish this objective; a comparison of two variable selection techniques (Random Forest’s Forward Variable, (FVS) and Guided Regulari
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6

Kobayashi, Hideka. "Aureobasidium Microstictum (Bubak) Cooke, The Casual Agent of Leaf Streak of Daylily (Hemerocallis L.), and Its Involvement in Spring Sickness of Daylily." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1364222371.

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7

Peng, Zhao. "Contribution of TAL effectors in Xanthomonas to diseases of rice and wheat." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/20443.

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Doctor of Philosophy<br>Plant Pathology<br>Frank F. White<br>Rice and wheat are two major crops that suffer losses from the diseases of bacterial blight and bacterial leaf streak, which are caused by Xanthomonas oryzae pv. oryzae (Xoo) and Xanthomonas translucens pv. undulosa (Xtu), respectively. Transcriptional-Activator Like (TAL) effectors, a special family of type III effector proteins from Xanthomonas, have been demonstrated as critical virulence factors that act by inducing corresponding susceptibility (S) genes in several disease complexes of plants. In this study, I analyzed the contri
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8

Tekete, Cheick. "Caractérisation des Xanthomonas oryzae au Mali et déterminisme génétique de la résistance du riz au flétrissement bactérien et à la strie foliaire." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTG059.

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Au Mali, la production rizicole est affectée par les maladies causées par les bactéries phytopathogènes Xanthomonas oryzae pv. oryzae (Xoo) et Xanthomonas oryzae pv. oryzicola (Xoc) responsables respectivement du flétrissement bactérien (BLB) et de la strie foliaire (BLS). La résistance variétale est un des moyens les plus efficaces pour contrôler ces maladies dans les différentes conditions agro-écologiques de la riziculture. La caractérisation de la diversité des souches de X.oryzae de même que l’identification de sources à large spectre de résistance (BSR) sont un préalable indispensable à
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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

Biemiller, Richard Andrew. "Influence of Structural Disturbance on Stream Function and Macroinvertebrate Communities in Upper Coastal Plain Headwater Streams." UKnowledge, 2016. http://uknowledge.uky.edu/entomology_etds/25.

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Freshwater is a resource under threat due to anthropogenic actions. Stream restoration is a common method for mitigating disturbance. Inconsistent methodologies used for evaluating restorations have drawn criticism. Limited use of baseline data for guiding stream restoration activities is of particular concern. This study was developed to elucidate metrics that differentiate reference and disturbed sites in Upper Coastal Plain streams. This information could improve resource use and successes of restorations. Structural and functional variables were examined in 10 reference and 10 streams that
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11

Golden, Michael E. "The influences of multiple leaf species and flood disturbance on leaf pack processing in Appalachian mountain headwater streams." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1461.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains viii, 86 p. : ill. Vita. Includes abstract. Includes bibliographical references.
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Smits, Daan. "Value Stream Mapping for SMEs: a case study." Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99008.

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Due to a changing competitive environment, SMEs have to improve their production performance. A commonly applied philosophy to improve production performance is called lean thinking. This method, derived from the Toyota Production System, banishes wasteful activities while increasing the competitive strength and responsiveness of a company.Many companies fail in their attempt to become lean and therefore techniques are needed to guide the implementation. This thesis proposes to use Value Stream Mapping as an implementation technique for SMEs. This technique is tested in a company as a case stu
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von, Würtemberg Liv Marcks. "Lean om lean : en värdeflodesanalys av en lean-ledarutbildning." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31837.

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14

Chaffin, Jake Lee. "The influence of elevated arsenic concnetrations on stream biota and leaf breakdown in a headwater stream." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/33450.

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Arsenic is a naturally occurring element, which is toxic to aquatic biota especially in disturbed areas where it may be found at high concentrations. A headwater stream adjacent to an 85 year-old abandoned arsenic mine was investigated to determine the influence of arsenic on stream biota and processes using an upstream (reference) and downstream (mine-influenced) comparative approach. Arsenic concentration was measured monthly at 10 sites along the stream length. Benthic macroinvertebrate surveys were conducted in both reaches five times throughout the course of a year. Leaf breakdown ass
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Bold, Richard P. "Influence of coarse woody debris dams on leaf litter dynamics in U.K.headwater streams." Thesis, Coventry University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251857.

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16

Das, Mitali. "Microbial Community Structure and Interactions in Leaf Litter in a Stream." Kent State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=kent1144953748.

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17

Li, Oi-yee. "Shredders and leaf litter breakdown in Hong Kong streams." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/b40203505.

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18

Wang, Chao. "An Application of Lean Thinking to the Furniture Engineering Process." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/42442.

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Efficient engineering processes are critically important for furniture manufacturers. Engineering impacts the production cost, design quality, product lead time, and customer satisfaction. This research presents a systematic approach to analyze a furniture engineering process through a case study. The research was conducted through a case study in a furniture plant located in China, producing American style furniture products. The first stage was to investigate the companyâ s current engineering process, identify non value-added activities, and analyze the engineering performance based on sel
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Li, Oi-yee, and 李靄儀. "Shredders and leaf litter breakdown in Hong Kong streams." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40203505.

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20

Trodden, Laura Rh B. "Local physical and hydraulic factors affecting leaf retention within streams." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/31654/.

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Annual allochthonous leaf litter inputs to temperate headwater streams provide a major contribution to the energy and carbon dynamics of the system, with whole seasonal cycles being determined by leaf litter inputs. Although a number of different physical and hydraulic factors have been linked to leaf retention, the mechanism of leaf retention has not been fully quantifed. A series of flume experiments investigated how leaf retention and the flow structure varied with bed heterogeneity, boulder submergence and boulder density. Two set-ups were used; a flat bed consisting of two physically diff
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21

Raupach, Staffan, and Fredrik Lindelöw. "Virtual Value Stream Mapping : Evaluation of simulation based value stream mapping using Plant Simulation." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-11176.

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22

Svensson, Sanna, and Evelina Nilsson. "Lean on Lean : Applicering av Value Stream Mapping på ett fallföretags inleverans- respektive utleveransprocess." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-54514.

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Bakgrund: På grund utav den ökade globala konkurrensen, den snabba teknologiska utveckligen och skiftet till ett kundorienterat synsätt, ställs högre krav på ständiga förbättringar inom verksamheter. Detta ställer i sin tur högre krav på effektiva processer och flöden. Genom att tillämpa Lean och verktyget Value Stream Mapping kan icke- värdeadderande aktiviteter, relaterade till slöserier, identifieras och minimeras för att maximera både material- och informationsflödet inom processer. Syfte: Syftet med denna studie är att identifiera slöserier inom Företagets inleverans
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23

Harper, Justin A. 1975. "Implementing lean material management in an extended value stream." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39895.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; in conjunction with the Leaders for Manufacturing Program at MIT, 2007.<br>Includes bibliographical references (p. 99-101).<br>American Axle & Manufacturing, Inc. (AAM) is still in the process of transitioning to a culture of "lean manufacturing" as opposed to the current culture of "mass production". This thesis involved working with AAM employees and suppliers at various locations to understand how material flows between and
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Bremer, Edith. "The effects of forestry on stream ecological integrity." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160127.

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This study investigates the effects of forestry on leaf litter decomposition in small forest streams. Riparian forest, that is the land closest to the stream, maintain shading, water temperature and energy supply through litter fall. If the riparian zone is deforested, many riparian functions important for the integrity of the stream ecology, hydrology and biogeochemistry can be lost or modified. Leaf litter decomposition can be used as an integrated measure of the physical and biological changes following forestry perturbations.  This study was conducted in 11 northern and 12 southern Swedish
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Riipinenn, Miira P. "Assessing the functional integrity of upland streams using leaf litter breakdown." Thesis, Manchester Metropolitan University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.436208.

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26

Muller, Kristen Mary. "Impacts of Land-Use on Leaf Breakdown and Macroinvertebrate Assemblages in Southern Appalachian Streams." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/71774.

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Land-use practices have long been associated with alterations in stream ecosystem structure and function, however, 'exurbanization' and its impact on streams is poorly understood. This study compares the ecosystem structure and function of 9 southern Appalachian streams of differing land-use (forested, exurban, agricultural). Impacts of land-use on leaf breakdown are examined in Chapter 1. Leaf breakdown rates were significantly related to land-use. Forested streams exhibited the slowest breakdown rates, followed by exurban streams, with agricultural streams having the fastest rates. Lea
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27

Lund, Johannes, and Ludvig Rogberg. "Kartläggning inom processindustrin : -Analys med Value Stream Mapping och Lean." Thesis, KTH, Industriell produktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-172786.

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Sammanfattning Denna rapport behandlar en kartläggningsmetod kallad ”Value Stream Mapping” som syftar på att effektivisera en produktionskedja men hjälp av Lean-produktion. Value Stream Mapping ger en visuellt tydlig överblick av produktionen och innehåller information om lagernivåer, maskinernas takttid och omställningstid. Förutom detta kan även maskinernas tillförlitlighet återfinnas i rapporten tillsammans med den skiftgång som används. Rapporten innehåller bakgrunden till denna kartläggningsmetod samt varför Lean är applicerbart och dess fördelar detta ger. Rapporten förklarar de avgränsn
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Phoenix, Casey J. (Casey John). "Lean implementation across value stream in main rotor blade area." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39692.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering; in conjunction with the Leaders for Manufacturing Program at MIT, 2007.<br>Includes bibliographical references (p. 61).<br>The primary goal for this project was to help expand the existing capability of Sikorsky's main rotor blade business from raw material (titanium) through final assembly. The project helped to facilitate the ongoing lean transformation as the factory makes the journey to single-piece flow. Durin
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Mähl, Maria, and Johan Östlin. "Lean Remanufacturing : Material Flows at Volvo Parts Flen." Thesis, Uppsala University, Department of Business Studies, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7985.

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<p>The after market is of great importance of a company’s competitiveness and an increasing part of its revenues can be derived from it. Remanufacturing, in focus of this thesis, is a great business opportunity and the European market has an enormous growth potential. In the USA it is a major business and the automotive industry, targeted in this thesis, sells approximately 60 million remanufactured automotive products compared to 15 million products in Europe for an equivalent stock of vehicles</p><p>Compared to manufacturing, the remanufacturing environment is a more complex business due to
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Hutchens, John Jehu. "The diet and growth of a leaf-shredding caddisfly, Pycnopsyche, in streams of contrasting disturbance histories." Thesis, Virginia Tech, 1994. http://hdl.handle.net/10919/42124.

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<p>This study investigated the diet and growth of a leaf-eating caddisfly, Pycnopsyche, in streams draining a >60 year-old reference forest and a 16-year-old c1earcut (disturbed) forest at Coweeta Hydrologic Laboratory in southwestern North Carolina. The objective was to examine whether Pycnopsyche larvae grew better on fast-decaying leaf types more prevalent in the disturbed streams (e.g., black birch) because leaf-eating insects (shredders) in a previous study were more productive in these streams despite having less food available. Larvae consumed mostly unidentified plant material in strea
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Cheever, Beth Marie. "Microbial and metazoan effects on nutrient dynamics during leaf decomposition in streams." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/26809.

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I investigated the drivers of nutrient cycling by heterotrophic microbes during leaf decomposition in streams. My research addressed two overarching questions: 1) how do exogenous and endogenous factors interact to drive microbial nitrogen (N) cycling during organic matter decomposition in stream ecosystems, and 2) what affect will the global increase in biologically active N have on these factors and resulting fluxes? I conducted studies in natural streams and laboratory mesocosms to address these questions and used general stoichiometric theory to conceptualize diverse microbial assemblages
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Ventura, Fábio André Mendes Lopes. "Value Stream Mapping metodologia Lean aplicada a uma linha de montagem." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10273.

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Mestrado em Engenharia e Gestão Industrial<br>O presente projeto vai abordar diversas metodologias Lean. O Value Stream Mapping surge como uma ferramenta Lean fundamental para desencadear estas metodologias onde o foco principal é a identificação e eliminação de desperdícios existentes na indústria e a aplicação de melhorias contínuas nos processos produtivos. O projeto é desenvolvido na Teka Portugal em torno das linhas de montagem de um exaustor onde o seu objetivo, através do Value Stream Mapping, é a otimização de uma área de um pavilhão e o aumento de produtividade destas mesmas l
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Eklund, Malin, and Fanny Steenari. "En mixers väg genom produktionsflödet : En Value Stream Mapping på OPX Xylem Emmaboda." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35705.

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Bakgrund: Den svenska produktionsindustrin hotas utav så kallade låglöneländer som kanerbjuda samma tillverkning med en högre lönsamhet. Detta gör att verksamheten måste varaattraktiv för såväl investerare som kunder vilket gör att företaget måste genomföra ständigaförbättringar för att klara konkurrensen. Detta är något som även Xylem i Emmaboda kännerav. Xylem tillverkar ett brett utbud av dränkbara vattenpumpar men även annan utrustningsom krävs för att leverera vattenteknologi. Tidigare studier på en utav Xylems verkstäderOPX har visat att produktionen lägger mycket tid på aktiviteter som
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Hughes, April Heather. "The effects of cattle exclusion on stream structure and function." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/34642.

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Stream ecosystems can be influenced by cattle grazing in the riparian zone due to sediment input, nutrient loading, and soil compaction, which lead to alterations of macroinvertebrate and microbial activity. Recently government programs, such as the Conservation Reserve Enhancement Program (CREP), have provided funding for farmers to exclude cattle from streams and riparian zones. Funding for CREP is limited and does not allow for post exclusion assessment. The objectives for this study were; 1) to explore whether CREP and other cattle exclusion initiatives help restore functional integrity
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Timm, Patricia Hart. "Perceptions of Value-Stream Costing and the Effect on Lean-Accounting Implementation." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/1372.

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In response to the competitive global economy, lean manufacturing has become more prevalent in the United States. Manufacturing has changed, but cost accounting has not. Lean manufacturing has the potential to change the U.S. manufacturing economy, resulting in positive economic social change, yet it requires lean accounting to increase successful implementations. This study addressed the problem of lack of adoption of lean-accounting techniques like value-stream costing in lean-manufacturing enterprises. The purpose of this nonexperimental explanatory study was to investigate factors that inf
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Adams, Janey Christine. "The Role of Leaf Litter and Small Wood in the Retention of Fine Particles During Storms in an Appalachian Headwater Stream." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/35585.

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Streams are constantly subject to downstream movement of materials. The role of fallen leaves in resisting downstream transport of particulates is largely unquantified. The litter exclusion study at Coweeta presented the opportunity to study a stream without litter input. I expected removal of leaf litter to reduce the capacity of the stream to retain fine particulate organic matter, FPOM. However, leaves are also a major source of FPOM. I studied the effect of leaf exclusion on FPOM transport by field sampling and by generating computer simulations of particle transport in the stream. Samp
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Lindhe-Rahr, Robert, and Mata Alejandro Sáez. "Revisiting the Concept of Value Stream Mapping." Thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Centre of Logistics and Supply Chain Management (CeLS), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-28118.

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Value Stream Mapping is a common tool used in a lot of instances in today’s industrieswho have adopted any kind of Lean initiatives. However, Value Stream Mapping (VSM) may not always fit to the best extent and intention of the industry applying it; therefore a need for tailoring certain aspects of it have been seen in some cases where the original tool has not been enough. However there is little research on how to adopt VSM towards the tire industry, it is the case that some adaptation is needed in order to fully map the value the chain is trying to capture as seen by some authors who use VS
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Hedin, Ingrid. "Undersökning av möjliga faktorer till effektivisering av informations- och materialflöden." Thesis, Högskolan i Gävle, Industriell ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-27816.

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Till följd av ökande krav från kunder blir dagens konkurrenssituation på marknaden allt hårdare för företag. Dessa krav bidrar till att företagen måste satsa på ökad effektivitet och långsiktig lönsamhet. Lean är ett känt begrepp inom industrin som vid implementering syftar till att reducerar eller eliminera slöseri i informations- och materialflöden vilket leder till effektivisering. Denna studie bygger på ett problem som existerar i ett flertal informations- och materialflöden i en processindustri. Fallföretaget i denna studie är Iggesund Paperboard som önskar klarhet a
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bin, Ali Nauman. "Operationalization of lean thinking through value stream mapping with simulation and FLOW." Doctoral thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00614.

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Background: The continued success of Lean thinking beyond manufacturing has led to an increasing interest to utilize it in software engineering (SE). Value Stream Mapping (VSM) had a pivotal role in the operationalization of Lean thinking. However, this has not been recognized in SE adaptations of Lean. Furthermore, there are two main shortcomings in existing adaptations of VSM for an SE context. First, the assessments for the potential of the proposed improvements are based on idealistic assertions. Second, the current VSM notation and methodology are unable to capture the myriad of significa
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Hagen, Elizabeth M. "Influence of Agricultural Land Use on Allochthonous Input and Leaf Breakdown in Southern Appalachian Streams." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9897.

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Streams and terrestrial ecosystems are linked through allochthonous organic matter inputs from streamside vegetation. This allochthonous material makes up the energy base for forested aquatic food webs. Therefore, removal of riparian vegetation associated with agricultural land use affects stream ecosystem structure and function. The objectives of this study were to measure and compare allochthonous input and leaf breakdown rates along a gradient of agricultural land use in southern Appalachian streams. Study streams were placed into the following land use categories: forest and light, moderat
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Bangalore, Rajanna Raghunandan, and Nallaye karthikeyan Harvind Prasad. "Value Stream Analysis of Online Deliveries at Ecommerce Department in a Logistic Company." Thesis, Jönköping University, JTH, Produktionsutveckling, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-51506.

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Lean production is one of the proven approaches for identifying and eliminating the activities that do not add value to the customers and delivering and provide the best possible quality service to customers. Implementation of lean is deemed to be feasible in any organization regardless of its size or industry background. For initiating lean in an organization there are many tools, techniques and approaches that are available. Value Stream Mapping (VSM) is one such tool that is touted as cost-effective and easy to be implemented. This thesis proposes to conduct Value Stream Analysis (VSA) at a
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Sponseller, Ryan Allen. "Influences of land use on the structure and function of headwater streams: A multiple scale analysis." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/34216.

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The structure and function of stream ecosystems may be strongly influenced by land-use practices within watersheds. The magnitude of land-use impacts may depend upon the spatial arrangement of development in watersheds. This study examines the relationship between land-cover patterns and stream structure and function in 9 southern Appalachian headwater basins. Using a GIS/remote sensing approach, land-cover patterns were quantified at several spatial scales, including the entire watershed, riparian corridor, and riparian sub-corridors extending upstream in 200 m increments for 2 km. In-str
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Svensson, Ivan, and Elin Berglund. "At the heart of it all : A value stream mapping of the heart emergency at Danderyds Sjukhus AB." Thesis, KTH, Industriell ekonomi och organisation (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170535.

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Dagens situation med en åldrande befolkning som leder till en större förekomst av allvarliga kroniska sjukdomar gör att sjukvården står inför nya utmaningar. Då de flesta vårdinrättningar har en mycket hög beläggning och begränsade resurser har man börjat använda sig av produktionsstrategier som traditionellt använts i mer industrinära miljöer, exempelvis Lean production. I denna studie har värdeflödet kartlagts och analyserats för besök vid hjärtakuten på Danderyds Sjukhus AB. Detta har genomförts med hjälp av fältstudieobservationer och intervjuer, för att undersöka verksamheten på en vårdin
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Molin, Emma, and Philip Olofsson. "Kostnadsanalys utmed ett Value Stream : En intervenistisk fallstudie vid Volvo Cars Body Components." Thesis, Linnéuniversitetet, Ekonomihögskolan, ELNU, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-20365.

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Bakgrund: Volvo Cars Body Components (VCBC) tillverkar och levererar karosskomponenter till Volvo Cars. För sex år sedan påbörjade VCBC sin implementering av lean production. För att beräkna de kostnader som uppstår i produktionen använder VCBC produktkalkyler. Representanter vid VCBC anser att företaget har problem med höga plåtlager, överproduktion samt problem med att se kostnadssamband. Ett value stream där förbättringsmöjligheter finns är Flöde 1 vid VCBC. Enligt vad Maskell et al. (2011) påstår kan problemen vara effekter av kombinationen mellan lean production och produktkalkyler. Maske
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Bartling, Tobias, and San Sammalisto. "Effektivisering av materialflöden utifrån lean production och flaskhalsteori." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-23298.

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Dagens företag blir allt mer resursbejakande. Ett sätt att bli mer effektiva med resurser är lean production, en strategisk metod som går ut på att eliminera slöseri. Värdeflödesanalys är ett verktyg inom lean som kan användas för att få en klarare bild av hur verkligheten ser ut och hjälpa till att få en klarare bild av vart problemen ligger. När en sådan analys har gjorts upptäcks ofta en maskin eller station som saktar ner produktionen. Sådana stationer kallas ”flaskhalsar”. Syftet med denna studie är att utforma en metodik för analys och effektivisering av materialflöden baserat på flaskha
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Börjesson, Max. "Kostnadskalkylering för lean-företag : En systematisk litteraturstudie." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-98417.

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Titel: Kostnadskalkylering för lean-företag – En systematisk litteraturstudie Författare: Max Börjesson Handledare: Helena Forslund Examinator: Elin Funck Lärosäte: Ekonomihögskolan vid Linnéuniversitetet i Växjö Kurs: Examensarbete i controller för Civilekonomprogrammet Nyckelord: lean, kostnadskalkylering, standardkostnader, activity based costing, ABC, value stream costing, VSC. Bakgrund och problemformulering: lean är en filosofi som fått stort genomslag. Samtidigt kräver användandet av filosofin anpassningar, bland annat i företags kostnadskalkylering. I den befintliga forskningen är det
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Schindler, Markus. "Effects of litter diversity, leaf quality and water chemistry on litter decomposition in streams /." Zürich : ETH, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16789.

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Schmidt, Marc Anthony 1970. "Application of lean principles to an enterprise value stream : a lean analysis of an automotive fuel system development process." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/88317.

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Thesis (S.M.)--Massachusetts Institute of Technology, System Design & Management Program, 2000.<br>Includes bibliographical references (p. 100-101).<br>This thesis shows that lean principles that have been successfully applied in manufacturing can also be successfully applied across an entire enterprise. Established lean principles and lessons learned in lean manufacturing environments are applied across an automotive fuel system enterprise. This enterprise includes all major activities used in developing and delivering fuel systems to customers from the initiation of the systems concept to fi
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Mo, Oscar. "Lean product development: : How can lean product development be used to improve the value stream for an ITC company?" Thesis, KTH, Industriell produktion, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-183104.

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A changing environment in a globalised world causes organisations and companies to be exposed to new conditions. The demands on companies in such an environment are becoming increasingly difficult to master and the demands on employees and management teams will increase. A sustainable solution to this is not to work more and harder, but to work smarter. To identify queues and bottlenecks in their processes, value stream mapping is a common practice for many companies.Furthermore, lean product development is an approach that can be used to maintain, or even increase, the company’s competitivene
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Hagob, Sihak. "Value Stream Mapping – Alfa Laval : Kartläggning av produktion- och informationsflödet." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-26537.

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Med utgångspunkten att ständigt förbättras och öka konkurrenskraften arbetar Alfa Laval mot Leanprinciper. Vad som dock är ett problemområde är att se över fabriken ur ett helhetsperspektiv, närfabriken är uppdelad i många avdelningar. Lösningen till detta problem är att via olika metoder ellerverktyg kunna fastställa svaren på problemen.Denna examensrapport redogör för hur metoder inom Lean produktion kan vara lösningen förproblemområdet. Forskningen är huvudsakligen byggd på en bred värdeflödesanalys som syftar till attfånga in ett företags alla aspekter ur ett helhetsperspektiv, med syftet
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