Dissertations / Theses on the topic 'Padas'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 dissertations / theses for your research on the topic 'Padas.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Hoare, Alison L. "Cooking the wild : the role of the Lundayeh of the Ulu Padas, (Sabah, Malaysia) in managing forest foods and shaping the landscape." Thesis, University of Kent, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252567.
Full textBartkėnas, Valdas. "Pagrindinio žemės dirbimo įtaka cukrinių runkelių derliui." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110602_115818-19329.
Full textTraditionally used for plowing the soil is mostly time consuming and least efficient process, which accounts for about 40% or more of the total cultivation costs. The long standing agricultural plowing and heavy machinery use can lead to deep and hardened soil layers thick. Deep loosening of soil to restore the lost soil and loosen compacted soil layers below the depth of the arable, the an invension. The aim was to examine the traditional plowing and hoeing a deep impact on soil physical properties of sugar beet morphometric, productivity and quality indicators. The research on soil hardness and durability of the structure. Incision made in the soil, which analyzed the status of plant and soil, as well as the morphometric characteristics of sugar beet and their growing dependence on weather conditions. Deep soil loosening reduce topsoil and subsoil layer hardness and structure, as well as improve the sugar beet crop conditions for development, productivity and quality indicators.
Castillo, Gonzales Diameth Milagros, De la Cruz Lisa Sarita Andrea Flores, and Ponce de León Percy Morales. "Club de 4 Patas." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2018. http://hdl.handle.net/10757/625024.
Full textTrabajo de investigación
Eltit, Concha Bernardita. "Patas de perro, mano de obra." Tesis, Universidad de Chile, 2005. http://www.repositorio.uchile.cl/handle/2250/110285.
Full textEn este informe pretendo dar cuenta de dos novelas chilenas contemporáneas Patas de Perro (1965) de Carlos Droguett (1912-96) y Mano de Obra (2002) de Diamela Eltit (1949). La primera pregunta que creo hay que responder es qué las pone en relación, o sea, en qué medida son aunables o comparables. Primero que todo en el marco, la novela chilena contemporánea, aunque bajo paradigmas diferentes, y este es precisamente el punto que las vincula para mí: pretendo marcar un tránsito. Principalmente el tránsito de una noción de sujeto (y de mundo representado, necesariamente) a otra diametralmente distinta, a través de algunas revisiones contextuales socio-políticas y otras propiamente estéticas.
Heunis, Johannes Jacobus. "Material models for rail pads." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6643.
Full textENGLISH ABSTRACT: The vibrations and noise “pollution” that rail vehicles produce have become of particular concern in recent years. More pressure is being placed on operators of trains and trams (especially those operating in urban environments) to reduce their impact on neighbouring infrastructure. This project investigated the infrastructure available for vibration and noise mitigation and generated material models for some of the materials used in these types of rail infrastructure. The most common type of rail infrastructure used in South Africa is ballasted sleepers. Rail pads are sometimes used to reduce the transmitted vibration of these sleepers; this study focused on the materials used in the manufacture of these pads. Since most of these materials can be described as resilient/viscoelastic, the study of literature regarding these materials is essential within the scope of this project. Models found in literature were adapted by the addition of a non-linear stiffness element to account for the material behaviour at higher preloads. Three commercially available materials were tested and optimisation algorithms applied to determine their material coefficients (damping and stiffness), focusing on the preload and frequency dependency of these coefficients.
AFRIKAANSE OPSOMMING: Die vibrasie en geraas “besoedeling” wat spoor voertuie genereer het in die in die afgelope paar jare van kritieke belang geword. Meer druk word op operateurs van treine en trems geplaas (veral die operateurs met operasies in stedelike gebiede) om hulle impak op aangrensende infrastruktuur te verminder. Hierdie projek is dus daarop gemik om te bepaal watter infrastuktuur beskikbaar is vir die vermindering van vibrasie en geraas asook die ontwikkeling van materiaal modellle vir sommige van die materiale wat gebruik word in hierdie tipes van spoor infrastruktuur. Die mees algemene spoor infrastruktuur wat gebruik word in Suid-Afrika is dwarslêers met ballas. Spoor blokke word soms gebruik om die oordrag van vibrasies te verminder vir hierdie dwarslêers en daarom het hierdie studie fokus geplaas op die materiale wat gebruik word in die vervaardiging van hierdie blokke. Aangesien die meeste van hierdie materiale beskryf kan word as veerkragtig/visco, is 'n literatuurstudie oor hierdie materiale noodsaaklik binne die bestek van hierdie projek. Modelle wat gevind is in die literatuur is aangepas deur 'n nie-lineêre styfheids element by te voeg wat voorsiening maak vir die materiale se gedrag by hoër voorspannings. Drie algemene kommersieël beskikbare materiale is getoets en optimeringsprossesse is toegepas om hulle materiaal koëffisiënte (demping en styfheid) te bepaal met die klem geplaas op die voorspanning en frekwensie afhanklikheid van hierdie koëffisiënte.
Romani, Giron Yussep Leoncio, and Misahuaman Diana Rosio Poma. "Contenido de carbohidratos totales, almidón resistente de dos papas nativas peruanas y comparación con dos papas comerciales (Solanum Tuberosum)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2013. https://hdl.handle.net/20.500.12672/12425.
Full textTesis
Li, Hengsha. "Real-time Cloudlet PaaS for GreenIoT : Design of a scalable server PaaS and a GreenIoT application." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-239004.
Full textCloudlet är en ny teknik som har fått stort intresse inom nätverksforskning. Tekniken kan beskrivas som en PaaS-plattform (Platform as a Service) som tillåter mobila klienter att exekvera sin kod i molnet. Cloudlet kan ses som ett lager i kanten av kommunikationsnätet.I denna rapport presenteras en cloudlet-baserad arkitektur som inkluderar cloudlet-kod som en del av själva tillämpning på klient-sidan. Vi ger först en översikt av relaterat arbete inom området och beskriver existerande utmaningar som behöver adresseras. Därefter presenterar vi en övergripande design för en cloudlet-baserad implementering. Slutligen presenterar vi cloudlet-arkitekturen, inklusive en prototypimplementation av både klient-tillämpning och cloudlet-server. I vår prototyp av en datavisualiseringstillämpning för CO2, fokuserar vi på hur man formaterar funktionerna på klientsidan, hur man schemalägger cloudlet-PaaS på serversidan, samt hur servern kan göras skalbar. Rapporten avslutas med en prestandautvärdering.Cloudlet-tekniken bedöms i stor utsträckning att användas i IoT-projekt, såsom datavisualisering av luftkvalitet och vattenkvalitet, fläktstyrning och trafikstyrning eller andra användningsområden. Jämfört med den traditionella centraliserade molnarkitekturen har cloudlet hög respons, flexibilitet och skalbarhet.
Rosas, Díaz Tábata Victoria. "Estudio comparativo de especies del género Carlavirus que afectan al cultivo de la papa." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2004. https://hdl.handle.net/20.500.12672/1407.
Full text--- The relationship among four Carlaviruses species such as potato virus S, M, P (PVS, PVM, PVP) and potato latent virus (PLV Syn. Red LaSoda Virus) affecting potato crop were studied using three criteria: Biological (symptomatology in host plants), serological and molecular relationships. Symptomlogically, PLV infected a wider range of host plants than PVS, PVM and PVP. Virus PVS caused a systemic infection to Chenopodium quinoa plants while other members caused a local infection (PVM), symptomless infection (PLV) and not infection (PVP) in that plant. Lycopersicon esculentum was the only host plant that get infected with PVM, in the other hand infection with PLV was generally symptomless and found in plants that are uncommon for the Carlavirus genera like Physalis floridana, Nicotiana rustica and N. glutinosa. PVP and PVM caused a similar range of infection in host plants. Serologically PVS, PVM, PLV and PVP were evaluated using double antibody sandwich enzyme-linked immnosorbent assay (DAS-ELISA). This test did not show a relevant relationship or cross-reactions, it is probably because of the high specificity of DAS-ELISA (Koenig, 1978), there was only an exception when PVS antibody cross-reacted with CVB (Chrysanthemum Virus B). This, however, did not seem to be equal when the same viruses were evaluated on indirect NCM-ELISA test where a weak cross-reaction was observed between PVM and PVP. Molecularly, primer carla-uni (Badge et al., 1996) has been shown to be a primary tool for Carlaviruses when RT-PCR was carried out on PVS, PVM, PLV and PVP, and usually gives a PCR product of about 120 bp in all four viruses. Specific primers designed to amplifying the coat protein sequence for PVS, PLV and PVM have shown a total specificity, maybe because of the low homology in this region. These three PCR products were cloned, then used to develop probes and finally tested in Nucleic Acid Spot Hybridization (NASH), so that specificity was confirmed because the probes hybridized only with their complementary pathogens. These specific probes were combined to form “Polyprobe” to achieve a simultaneous detection of PVS, PVM and PLV in a radioactive and no radioactive NASH tests. The successfully developed assay was tested with material that was processed from both in greenhouse and field in order to detect these three viruses. This is the first report of the partial sequence of 11k gene of PVP, which shown high homology with the same region of PVSA (70,9%). Nucleotides identity among Carlavirus 11k gene (between 24 and 41%) was lower than the one among coat protein regions (between 25 and 79,4 %). Alignments of the partial coat protein showed clearly that PVS-CIP was identical to PVSA (91%), while PVM-CIP was identitcal to PVM “Idaho” (95,8%) and PLV showed a high similarity with PVM-CIP (64,7%.) PVS showed the highest incidence (49%), then PLV (13,7%), PVM (8,7%) and the lowest PVP (5,13%) in the native Andean cultivar collection maintained at CIP. In conclusion, all these pathogens can be classified as distinct Carlavirus members, according to their biological, serological and molecular traits. Furthermore, this work showed modifications of standard detection tests like simultaneous detections in order to simplify the technique and reduce costs and time.
Tesis
Lorente, Leal Alberto. "KTHFS Orchestration : PaaS orchestration for Hadoop." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-128935.
Full textSundberg, Fanny, and Max Anderhell. "Washing and drying reusable sanitary pads." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-21933.
Full textMensfattigdom är något som vanligtvis återfinns på platser präglade av fattigdom. Bristen på medel för kvinnor och flickor att kunna hantera sin menstruation är kärnan av problemet. Med en brist i kvantitet och kvalitet på vatten som ett vanligt problem på sådana platser är det en konstant utmaning att upprätthålla sin hygien. Menstruationsskydd delas in i två olika typer, engångs- och återanvändningsbara produkter. De återanvändningsbara produkterna består ofta av bomull eller andra absorberande material. Oavsett material måste produkterna rengöras mellan användningarna, vilket kan vara en utmaning på platser där vatten inte alltid är tillgängligt. Tillgång till en återanvändningsbar binda som kan rengöras med små resurser är viktigt, speciellt på platser som kännetecknas av fattigdom. Spacerpad är en återanvändningsbar binda, framtagen som del av ett projekt vid Högskolan Borås, vars syfte är att reducera mensfattigdom och samtidigt utbilda kvinnor och flickor om menstruation och hygien. Bindan är tillverkad av polyester som inte absorberar blod eller vatten, vilket gör att bindan snarare håller vätskorna på plats. Denna uppsats gjordes som en fältstudie på plats i Nairobi, Kenya och hade som mål att simulera en menstruation. Detta för att se hur den mikrobiella aktiviteten skulle kunna se ut, under och efter en menstruation. Med influenser ur intervjuer och tillgångar från Kibera (ett slumområde i Nairobi) genomfördes simulationen med näringslösning som substitut till mensblod. I simulationen studerades effekten av tvätt och tork på den mikrobiella aktiviteten. Spacerpad och en bomullsbinda genomgick samma processer där aktiviteten mättes med hjälp av dipslides, ett växtmedium. Resultaten från denna studie visar att både Spacerpad och bomullsbindan kan vara bärare av hög tillväxt av bakterier. En ökande bakteriell aktivitet genom testdagarna, slutade med ett tudelat resultat efter en tvåltvätt som sista procedur. Bindan av bomull hade lätt tillväxt, medan Spacerpad knappt visade någon tillväxt alls efter den sista rengöringen. Den mikrobiella aktiviteten hos Spacerpad nådde höga nivåer under simulationen. Trots det så gör förmågan att kunna rengöras med låg åtgång av resurser, att den kan anses vara sanitär nog för att användas på platser präglade av fattigdom, som i Kibera.
Enstam, Karin Lee. "Behavioral ecology of perceived risk of predation in sympatric patas (Erythrocebus patas) and vervet (Cercopithecus aethiops) monkeys in Laikipia, Kenya /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.
Full textTrujillo, Luján Guillermo. "Desarrollo de marcadores SCAR y CAPS en un QTL con efecto importante sobre la resistencia al tizón tardío de la papa." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2004. https://hdl.handle.net/20.500.12672/3298.
Full text---Late blight (LB) caused by the oomycete Phytophthora infestans, is the most severe potato disease worldwide. Horizontal resistance to late blight, governed by QTLs, is the most used in breeding programs because of its longer durability, and it has been characterized in a 2x Solanum population (PD) resulted from a cross between Solanum phureja (phu) (CHS-625) (2n=2x=24) (P) x Solanum tuberosum dihaploide (dih-tbr) (PS-3) (n=2x=24) (D). Eight QTL were detected by interval mapping methods. The QTL at chromosome XII of dihaploid S. tuberosum was reported as the most important one detected in the PD population because of its high contribution to field resistance and association to defense-related markers. Four Amplified Fragments Length Polymorphism (AFLP) linked to QTL tbr-XII were selected for conversion into sequence-specific markers in order to facilitate its detection in subsequent large progenies. Three Sequence Characterized Amplified Regions (SCAR) and one Cleaved Amplified Polymorphic Sequence (CAPS) markers have been developed for this QTL. Markers were converted by using inverse Polymerase Chain Reaction (iPCR) approach and by using the sequence of the original AFLP. Testing of these markers in the PD population confirmed their linkage to the QTL tbr-XII. Therefore, the developed markers can be applied to accelerate the introgression of this QTL into advanced breeding material. Additionally, eight AFLP markers were sequenced and may be useful for PCR-based markers designing
Tesis
Bernaola, Alvarado Lina. "Caracterización molecular de la resistencia al tizón tardío en Solanum paucissectum Ochoa (Solanaceae) mediante el uso de la técnica NBS y marcadores para loci candidatos." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2008. https://hdl.handle.net/20.500.12672/870.
Full text--- Late blight caused by the oomycete Phytophthora infestans (Mont.) de Bary, is the most serious and devastating disease of potato production worldwide. Beside fungicides, the use of resistance varieties is another strategy to protect potato production against this disease. Wild potato species have proven to be a source of resistance to late blight used by much breeding programs. This resistance is controlled by R genes which may be easily overcome by new races of P. infestans, and/or by an unknown number of genes resulting in a quantitative type of resistance which may be more durable. With the goal of characterizing resistance to late blight, 57 genotypes of a PCS1 diploid offspring originated from cross among Solanum paucissectum Ochoa 762126.227 (R) with S. paucissectum 762124.236 (S) it was analyzed by means of molecular markers.The first part of the thesis focused on the evaluation of the NBS profiling technique, a strategy based on PCR (polymerase chain reaction) that efficiently it recognizes chromosomal regions containing R genes or R genes analogs (RGAs). At the same time it produces polymorphic markers for this gene. Mean polymorphic rates detected using RsaI and HaeIII as restriction enzymes were 11% and 8%, respectively. Mean number of polymorphisms per enzyme-primer combination was equal to 5, ranging from 3 to 13 polymorphic bands. Our results indicate that NBS profiling provides an effective means to identify polymorphism in potato.The second part of the thesis focused on the evaluation of genomic regions responsible for resistance to late blight. PCS1 family was genotyped with 15 DNA markers known to be linked to QTL (quantitative trait locus) for resistance on potato genome. Specific DNA fragments based on PCR were tested for association with this analyzed quantitative character. Two markers significantly linked to QTL for resistance to P. infestans were found on chromosomes V and XI in the PCS1 progeny.
Tesis
Galva, Scarlet, and Marie-Laure Pocheron. "CHILL'OTE : local de comida rápida de papas fritas." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/144059.
Full textScarlet Galva [Parte I], Marie-Laure Pocheron [Parte II]
Chill’Ote es un local de comida rápida ubicado en la galería del Subcentro en metro Escuela Militar del sector oriente de Santiago. Abrió en enero del 2015, ofreciendo una propuesta novedosa: el plato de fondo se centra en las papas fritas, las cuales suelen ser un acompañamiento en otros restaurantes. El menú de Chill’Ote consiste en que la papa fritas es la estrella de cada plato y vienen acompañada de distinta variedades de agregados y salsas como pollo teriyaki y carne mechada. Actualmente Chill’Ote tiene una clientela muy fiel, y un posicionamiento claramente diferenciado en la mente de sus clientes sin embargo tiene un bajo nivel de awreness dentro del mercado a cual pertenece. A casi dos años de su apertura, el restaurante apenas consigue cubrir sus costos, y no genera ganancias para sus dueños. Esto se debe principalmente a que las ganancias generadas entre las 13 y 15 horas son aniquiladas para la rentabilidad negativa de los horarios bajos: 10 a 13h y 15h a 21h. En este informe realizamos un diagnóstico de la situación inicial, con segmentación del mercado y posicionamiento actual de la marca, para poder analizar sus fortalezas y debilidades.
Rivera, Chumbiray María Concepción. "Aplicación de una técnica serológica para la detección de Ralstonia solanacearum en suelos y su importancia en el control de la marchitez bacteriana de la papa." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2003. https://hdl.handle.net/20.500.12672/1431.
Full textIn this investigation, the sensibility of method developed for detection of Ralstonia solanacearum populations in naturally infested soil has been improved. The effectiveness of the stage enrichment in a new semi-specific broth developed at the International Potato Center (CIP), allowed to increase bacterial populations until detectable boundary, achieved semi-quantification of the same and the levels as few as 16 cell/g soil (averaging 80 cells/g soil) were detected. DAS-ELISA (double antibody sandwich enzyme – linked immunoassay) post-enrichment technique has been evaluated in soil samples from the rhizosphere of bacterial wilt potato plants (high level populations) and, since then from soil samples each 15cm and neighbouring plants samples, arriving spread until 0,75cm and 1.5m around the wilted plant, respectively. The technique sensibility utilized in soil samples containing concentrations of the pathogen (2.0x102 to 1.1x105 ufc/g of soil) were selected and mixed with has been demostrated for the detection in diluted soil samples with non-infested soil in proportions of 1:2 to 1:6 has been demostrated. Furthermore one strategy sampling was able to detect bacteria in potato fields with low bacterial wilt incidences has been developed. Survival of Ralstonia solanacearum in soil was determined in field after 8-months fallow or a fallow and one rotation with maize, until 3 months after harvesting the same (a total of 9-months after potato harvest). The presence of Ralstonia solanacearum in soil samples of plants without visible bacterial wilt symptoms, but which test positive for latent infection in tubers for DAS-ELISA post-enrichment technique has been demostrated and confirm by the tomate bioassay patogeniticity. In each of the three seed-multiplication fields andean highlands (over 3000 m a.s.l.) of 0.25-0.5 ha, at 95% and 99% probabilities of detection, the number n of composite samples necessary to be analysed would be 20 and 31, respectively. The results obtained in two different sets of field conditions, allowed to show that the technique utilized is highly sensible and important for application in the control potato bacterial wilt in andean potato zones at Cajamarca province.
Tesis
Isik, Bora. "The Restoration Project Of Cin Kule In Payas, Antakya." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605510/index.pdf.
Full textAspé, Montes Omar Javier. "Plan de negocios para un restorán de papas fritas." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/159304.
Full textLa presente tesis expone un planteamiento para desarrollar un plan de negocios para un restorán de papas fritas inicialmente en Santiago Centro para luego replicarlo en Providencia y Las Condes. Su nombre, Belgian Fries hace referencia a las mejores papas del mundo y de gran novedad en Chile. La metodología utilizada consta de 6 grandes etapas, las cuales se enfocan en los requerimientos formales como: Estudio de Mercado,, Análisis Estratégico, Plan de Marketing, Plan de Recursos Humanos, Plan Operacional y Plan Financiero, para finalizar con consideraciones y conclusiones pertinentes. La propuesta consiste en determinar estrategias que permitan al restorán funcionar con éxito y de forma sostenible en el tiempo. Para conseguir los objetivos es clave la coordinación de personas y procesos, que logren que el cliente quiera repetir su experiencia y además la recomiende. Esta propuesta no está exenta de riesgos e imponderables, que vienen dados por variables como los ciclos económicos que impulsan el crecimiento, preferencias dinámicas de los clientes y capacidad de diferenciación. Se trata de un mercado sin muchos requerimientos tecnológico ni de capital, además de no tener fuertes barreras de entrada y salida. Por lo anterior la competencia es muy fuerte y se compite tanto por costos como por diferenciación. Existen muchos productos sustitutos y más de mil participantes en la industria. Es por esto que el proyecto de Belgian Fries apunta a ofrecer un producto novedoso porque son papas de alta calidad a un segmento entre los 26 y 40 años y extensible a su círculo cercano con atención amable, producto de calidad y rápido. Se utilizarán los embajadores de Instagram (alguien con unos 300 seguidores) que pueden ir a comer gratis al restaurante pero tienen que postear fotos en su perfil. Cada uno de ellos generará miles de likes . Es una de las tendencias actuales de hacerse conocido de boca en boca y es de bajo costo. El análisis financiero realizado se elabora desde supuestos más estrictos que la realidad, para poner a prueba el modelo de negocios. Así, al simular a favor alguna de esas variables se tendría mejores resultados. En el escenario base el proyecto evaluado a 5 años es viable, entregando un VAN de MM$ 62,2 y TIR de 56.0%, superior a tasas de descuento estimadas (7,01%) por lo que se recomienda realizar este proyecto.
Rojas, Domínguez Percy. "Análisis de la diversidad genética de papas nativas (Solanum sec. Petota) de la comunidad de Chahuaytire, integrante del Parque de la Papa (Pisaq-Cusco), y de las papas nativas repatriadas por el Centro Internacional de la Papa usando marcadores microsatélites." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2007. https://hdl.handle.net/20.500.12672/899.
Full textTesis
Aquino, Anchirayco Mónica Sara, and Mere Carmen Cecilia Castro. "Análisis de residuo de plaguicida organofosforado (Methamidophos) en muestras de papa de mercados de Lima Metropolitana." Universidad Nacional Mayor de San Marcos. Programa Cybertesis PERÚ, 2008. http://www.cybertesis.edu.pe/sisbib/2008/aquino_am/html/index-frames.html.
Full textPanas, Tumkiratiwong Rungsunn Tungtrongchitr. "The synergistic effects of Riboflavin deficiency and Trichinella spiralis infection in Wistar rat model /." Abstract, 2003. http://mulinet3.li.mahidol.ac.th/thesis/2546/46E-Panas-T.pdf.
Full textAlvarado, Aliaga Carlos Alberto. "Caracterización fenotípica y molecular de la diversidad genética de papas cultivadas por su tolerancia al endulzamiento en frío." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2008. https://hdl.handle.net/20.500.12672/913.
Full textWhen potato tubers are exposed to temperatures lower than 7 °C, a process known as “Low Temperature Sweetening” takes place. This physiological damage involves the accumulation of the reducing sugars (glucose and fructose) as a result of successive degradation of the starch and its components, and is the principal reason native potato crops are rejected by industry. To maintain its potential as an agroindustrial product, a potato should be processed quickly (before sugars can accumulate) or be cold tolerant so if cold stored, will not change its levels of sugars much. To address this issue, the present thesis work selected native cultivars of potato resistant to cold induced sweetening, and characterized them phenotypically, biochemically, and genetically. This was done at the International Potato Research Institute (CIP), in the laboratories of the Processing, Physiology, and Molecular Biology Division of the department of Germplasm Improvement. There were 40 varieties of native potatoes, selected previously for their frying quality, dry matter content, and reducing sugar content.
Tesis
Baptista, Luís Miguel Liberato. "A utilização de palas em natação pura-estudo comparativo da influência de dois tipos distintos de palas nos parâmetros biomecânicos da técnica de crol." Master's thesis, Instituições portuguesas -- UTL-Universidade Técnica de Lisboa -- -Faculdade de Motricidade Humana, 1998. http://dited.bn.pt:80/30269.
Full textRen, Haichuan [Verfasser]. "Investigations on Wear of Brake Pads / Haichuan Ren." Aachen : Shaker, 2016. http://d-nb.info/1084536676/34.
Full textENGVALL, THERESE. "Pressure sensitive textiles for integration in saddle pads." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-17397.
Full textProgram: Masterutbildning i textilteknik
Jollans, Bernard. "Improving dependability and performance of a PaaS application." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235365.
Full textI denna avhandling introduceras ett system som består av flera deltjänster som körs i behållare på samma virtuella maskin. Systemet visar sig sakna beträffande aspekter av driftsäkerhet och prestanda. Denna avhandling löser det första problemet genom att automatisera arkitekturprocesser och introducera automatiska komponentvisa omstart. Det senare problemet behandlas genom att implementera systemets horisontella skalbarhet. Avhandlingen konkluderar att systemet har förbättrats i båda dessa aspekter och stöder detta med teoretisk och empirisk utvärdering i både produktions- och testmiljöer.
Suits, Chris Allen. "DEFORMATION OF BEARING PADS WHILE UNDER SERVICE LOADS." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1167.
Full textGauthier, Marie-Eve. "Restoring peatland plant communities on mineral well pads." Master's thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25320.
Full textPeatlands are largely represented in the boreal region of Alberta but little is known about their restoration on well sites. The goal of this study is to compare plant communities and substrates in order to recover peatland vegetation. Two field experiments tested which plant communities (bog, bog-aspen ecotone, willow-sedge fen, shrubby rich fen, treed rich fen) would best regenerate on different substrate (sawdust, clay loam, mix sawdust-clay, peat, surface roughness). We found that peatland communities can establish on mineral soil after propagules transfer using the moss layer transfer technique (MLTT). The choice of plant community, where the propagules are harvested is key to bryophytes establishment. Peat amendment facilitated the plants establishment. The MLTT is a promising approach to restore fen plants on well sites. We recommend a scale-up experiment for a whole well site to test the validity of MLTT within pad removal techniques.
Peña, Rojas Gilmar. "Diversidad genética de papas nativas (Solanum spp.) de los distritos de Tambo y Anco, provincia La Mar Ayacucho." Doctoral thesis, Universidad Nacional Mayor de San Marcos, 2015. https://hdl.handle.net/20.500.12672/9154.
Full textLas papas nativas constituyen el patrimonio genético de las generaciones presentes y futuras, es fuente de alimentación y seguridad alimentaria del mundo. Con el objetivo de evaluar la diversidad genética de papas nativas (Solanum spp.) de los distritos de Tambo y Anco de la provincia La Mar, se colectaron 50 cultivares procedentes del distrito de Tambo ubicado entre las altitudes de 3920 y 4047metros y, el distrito de Anco entre las altitudes de 3751 y 3984 metros. Se evaluó morfológicamente utilizando los descriptores de la “Guía para las caracterizaciones morfológicas básicas en colecciones de papas nativas del Centro Internacional de la Papa” y, molecularmente empleando el polimorfismo en la longitud de fragmentos amplificados (AFLP). En la caracterización morfológica, utilizando algoritmos de UPGMA se determinó alta diversidad morfológica de los cultivares de papas nativas estudiadas y en el análisis de coordenadas principales, de los 28 descriptores morfológicos estudiados, los descriptores del tubérculo y del brote fueron poderosos y más informativos que otros descriptores para estudiar la diversidad morfológica. En el cálculo del índice estomático según la prueba de Tukey, se determinó diferencias estadísticamente significativas entre los promedios de los índices estomáticos de los cultivares en estudio. En el análisis molecular por AFLP, la digestión enzimática del ADN se realizó utilizando EcoRI y MseI. La combinación de los primersE38 – M49 y E37 – M50 fueron los más informativos obteniendo un índice de contenido polimórfico de 0,39 y 0,38. La lectura de la presencia o ausencia de bandas polimórficas de los morfotipos evaluados empleando el coeficiente de similitud Simple Matching y el análisis de agrupamiento según el algoritmo UPGMA originó un dendrograma con un índice de correlación cofenética de r= 0,7. El dendrograma con un coeficiente de similitud de 0,68 agrupó a los cultivares de papas nativas en 11 grupos y no se encontró cultivares duplicados a pesar de tener algunas características morfológicas semejantes.
Tesis
Castro, Mere Carmen Cecilia, and Anchirayco Mónica Sara Aquino. "Análisis de residuo de plaguicida organofosforado (Methamidophos) en muestras de papa de mercados de Lima Metropolitana." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2008. https://hdl.handle.net/20.500.12672/1613.
Full textTesis
Castagno, Thomas A. "The effect of knee pads on gait and comfort." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-0426104-174716.
Full textBoraie, Alexander. "Efficient parallel installation of software collections on a PaaS." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-83353.
Full textDib, Djawida. "Optimizing PaaS provider profit under service level agreement constraints." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S044/document.
Full textCloud computing is an emerging paradigm revolutionizing the use and marketing of information technology. As the number of cloud users and providers grows, the socio-economical impact of cloud solutions and particularly PaaS (platform as a service) solutions is becoming increasingly critical. The main objective of PaaS providers is to generate the maximum profit from the services they provide. This requires them to face a number of challenges such as efficiently managing the underlying resources and satisfying the SLAs of the hosted applications. This thesis considers a cloud-bursting PaaS environment where the PaaS provider owns a limited number of private resources and is able to rent public cloud resources, when needed. This environment enables the PaaS provider to have full control over services hosted on the private cloud and to take advantage of public clouds for managing peak periods. In this context, we propose a profit-efficient solution for managing the cloud-bursting PaaS system under SLA constraints. We define a profit optimization policy that, after each client request, evaluates the cost of hosting the application using public and private resources and chooses the option that generates the highest profit. During peak periods the optimization policy considers two more options. The first option is to take some resources from running applications, taking into account the payment of penalties if their promised quality of service is affected. The second option is to wait until private resources become available, taking into account the payment of penalties if the promised quality of service of the new application is affected. Furthermore we designed and implemented an open cloud-bursting PaaS system, called Meryn, which integrates the proposed optimization policy and provides support for batch and MapReduce applications. The results of our evaluation show the effectiveness of our approach in optimizing the provider profit. Indeed, compared to a basic approach, our approach provides up to 11.59% and 9.02% more provider profit in, respectively, simulations and experiments
Talledo, Torre María Julia, and Pinto Darwin Francisco Pardavé. "Exportación de puré instantáneo de papas nativas enriquecido con omega 3." Trabajo aplicativo final, Universidad Peruana de Ciencias Aplicadas - UPC. Escuela de Postgrado, 2014. http://hdl.handle.net/10757/311173.
Full textBorges, Edson Moreira. "Morfologia dos órgãos genitais masculinos de pacas (Agouti paca Linnaeus, 1766)." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-07082007-111144/.
Full textThe position and morphology of the male genitals of ten adult male pacas were studied; five especimens were fixed in aqueous solution of 10% formol and studied microscopically. From five especimens were collected fragments of these structures that after this usual proceeding to the inclusion in paraplaster and historesin they were analysed microscopically. Externally, we could identify the scrotum in the age of migration of testicle that presented structured parenchyma in seminiferous tubules which the basal menbrane reposed the germinative epithelium; these organs could be in the abdominal cavity or in the inguinal course. The fibroelastic male organ is located in the pubic region, in direction to tail, its gland, covered by keratinous epithelium was recovered by prepuce, under this we can find one thin cartilaginous structure with serried boards; one pair of osseous espícules were in the ventral sack until urethra which mucous was covered by epithelium of transition. The epidermal duct was covered by a pseudo- stratified epithelium and cubic simple, and it was coiled in the head, it was kept the body and the tail which one the referent duct originated, covered by pseudo- stratified epithelium columnar. The genital glandulas accessories: Vesicular, prostate, coagulative and urethral bulb, estructured like mucous glandulas emerging to pelvic urethra.
Ribeiro, Juliana Maria [UNESP]. "Análise do esforço amostral para ecologia comportamental: onças pardas como exemplo." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/121853.
Full textA detecção de grandes carnívoros, como as onças - pardas ( Puma concolor) , é dificultada por apresentar em baixa densidade de indivíduos, além dos hábitos elusivos e de difícil observação. A técnica de amostragem através de métodos não invasivos, como as fezes, podem permitir acessar várias informações incluindo a identificação do animal, área de vida e comp osição da dieta , entre outras , usando técnicas moleculares. A possibilidade de utilizar as fezes como medida indireta para estudos de populações em projetos de gerenciamento e conservação de vida selvagem depende do sucesso da coleta das amostras orgânicas . Frente a isso, foi analisado o esforço amostral para a coleta das fezes de onça - parda com intuito de otimizar o tempo e custos no planejamento das ações em campo. F oram analisadas variáveis de cunho antrópico e abi ótico da área de estudo: distâ ncias en tre os locais de coleta de amostras com as lagoas, sedes e estradas; a pluviosi dade média do período de coleta; os intervalos de dias da última precipitação ; o intervalo entre as visitas e intervalos desde a última amostra encontrada. Em todas as trilhas percorridas houve a presença d e pegadas de onças - pardas, poré m em apenas algumas delas foram encontradas fezes. Dessa forma a marcação territorial desses animais pode estar relacionada aos fatores autoecológicos da própria onça - parda através das marcações químicas e físicas, além de fatores antrópicos e abióticos indicando preferência por locais próximos à s lagoas e mais isolados de grande movimentação humana. Foi possível , também , estimar um intervalo de dias que otimize as visitas a campo, com a média do número de dias do intervalo entre as visitas indicando entre 7 – 9 dias como um intervalo ótimo para visita s ao campo, com fins de encontrar fezes de onças - pardas e com a última amostra encontrada por volta de 20 dias antes.
TThe detection of large carnivores such as the Puma ( Puma concolor ) , is hindered by the fact that they show low density, elusive habits and are hard to be seen. Sampling procedures via noninvasive methods, like using feces, can allow the access to a number of information regarding the behavioral ecology of the species, including the identity of each i ndividual – using DNA extraction - home range and diet . The use of feces as an indirect population measurement in wildlife management and conservation depends on the successful collection of them . Faced with this, we analyzed th e sampling effort to collect Pumas’ feces in order to optimize time and cost in planning field actions . A nthropic and abiotic variables of the study area were analyzed: dista nces between sampling sites to ponds, farmhouse and roads; the average rainfall in the gathering period; time p eriod from the last rainfall; the period between visits and time interval from the last sample found. In all pathways there were trails of footprints from pumas , but feces were found only in specific spots. Thus, territorial marking by these animals, using chemical and physical patterns, may be due to ecological causes from the species itself , and anthropogenic and abiotic factors . This study indicat ed puma preference for locations close to ponds and those more isolated from human activity . It was also pos sible to estimate a range of days that optimizes the field visits, with the average number of days in the period between visits being 7 - 9 days as the optimal interval for field visits in the aim of finding puma feces. And it was establish ed that is most pr obable to find a sample when the last one has been found around 20 days before.
Ribeiro, Juliana Maria. "Análise do esforço amostral para ecologia comportamental : onças pardas como exemplo /." Assis, 2014. http://hdl.handle.net/11449/121853.
Full textBanca: Sérgio Nascimento Stampar
Banca: Gelson Genaro
Resumo: A detecção de grandes carnívoros, como as onças - pardas ( Puma concolor) , é dificultada por apresentar em baixa densidade de indivíduos, além dos hábitos elusivos e de difícil observação. A técnica de amostragem através de métodos não invasivos, como as fezes, podem permitir acessar várias informações incluindo a identificação do animal, área de vida e comp osição da dieta , entre outras , usando técnicas moleculares. A possibilidade de utilizar as fezes como medida indireta para estudos de populações em projetos de gerenciamento e conservação de vida selvagem depende do sucesso da coleta das amostras orgânicas . Frente a isso, foi analisado o esforço amostral para a coleta das fezes de onça - parda com intuito de otimizar o tempo e custos no planejamento das ações em campo. F oram analisadas variáveis de cunho antrópico e abi ótico da área de estudo: distâ ncias en tre os locais de coleta de amostras com as lagoas, sedes e estradas; a pluviosi dade média do período de coleta; os intervalos de dias da última precipitação ; o intervalo entre as visitas e intervalos desde a última amostra encontrada. Em todas as trilhas percorridas houve a presença d e pegadas de onças - pardas, poré m em apenas algumas delas foram encontradas fezes. Dessa forma a marcação territorial desses animais pode estar relacionada aos fatores autoecológicos da própria onça - parda através das marcações químicas e físicas, além de fatores antrópicos e abióticos indicando preferência por locais próximos à s lagoas e mais isolados de grande movimentação humana. Foi possível , também , estimar um intervalo de dias que otimize as visitas a campo, com a média do número de dias do intervalo entre as visitas indicando entre 7 - 9 dias como um intervalo ótimo para visita s ao campo, com fins de encontrar fezes de onças - pardas e com a última amostra encontrada por volta de 20 dias antes.
Abstract: TThe detection of large carnivores such as the Puma ( Puma concolor ) , is hindered by the fact that they show low density, elusive habits and are hard to be seen. Sampling procedures via noninvasive methods, like using feces, can allow the access to a number of information regarding the behavioral ecology of the species, including the identity of each i ndividual - using DNA extraction - home range and diet . The use of feces as an indirect population measurement in wildlife management and conservation depends on the successful collection of them . Faced with this, we analyzed th e sampling effort to collect Pumas' feces in order to optimize time and cost in planning field actions . A nthropic and abiotic variables of the study area were analyzed: dista nces between sampling sites to ponds, farmhouse and roads; the average rainfall in the gathering period; time p eriod from the last rainfall; the period between visits and time interval from the last sample found. In all pathways there were trails of footprints from pumas , but feces were found only in specific spots. Thus, territorial marking by these animals, using chemical and physical patterns, may be due to ecological causes from the species itself , and anthropogenic and abiotic factors . This study indicat ed puma preference for locations close to ponds and those more isolated from human activity . It was also pos sible to estimate a range of days that optimizes the field visits, with the average number of days in the period between visits being 7 - 9 days as the optimal interval for field visits in the aim of finding puma feces. And it was establish ed that is most pr obable to find a sample when the last one has been found around 20 days before.
Mestre
Parraguez, Molina Germán Humberto. "Plan de negocio para crear una empresa comercializadora de Papas Duchesses." Tesis, Universidad de Chile, 2015. http://repositorio.uchile.cl/handle/2250/137313.
Full textMagíster en Gestión y Dirección de Empresas
El objetivo general de este trabajo de tesis es elaborar un plan de negocio que permita crear una empresa comercializadora de Papas Duchesses en Chile. La metodología desarrollada en el presente trabajo corresponde a un Plan de Negocio, en el cual se realiza un estudio de mercado, en base a entrevistas personales a chef, product manager ventas, administradores de restaurantes y encuestas vía web. Además de un estudio de segmentación geográfica de clientes en la región Metropolitana, análisis estratégico, el modelo de negocio, la estrategia comercial, operacional y un análisis económico financiero. La investigación de mercado nos entrega un conocimiento amplio de la segmentación geográfica de restaurantes en las 34 comunas del gran Santiago, donde existen 3 comunas donde se concentran el 62% de la totalidad de los restaurantes, Santiago, Providencia, Las Condes, con un consumo promedio de papa de 720 kilos mensuales por restaurante. En la descripción del mercado se identificaron 53 empresas a nivel nacional dedicadas a la importación de papas procesadas, con una importación anual de 77.245.700 kilos de papa al año, siendo un producto particularmente estacional, en diciembre su demanda aumenta 300%. El mercado potencial solo en la ciudad de Santiago es de 10 Millones de Dólares mensuales. Existen 3 tipos clientes, Retail 20% de la demanda anual, Fast Food con un 40% de la demanda anual y Food Service o Canal Horeca con un 40% de la demanda anual. Como conclusión del análisis de mercado es posible determinar que el segmento objetivo en base al producto gourmet las variables de rentabilidad, crecimiento y tamaño son Hoteles, Restoranes y Casinos. La evaluación económica considera una inversión inicial de $ 178.983.233, el análisis del flujo de caja se realizó por un periodo de 5 años y una tasa de descuento del 10,22%, la cual fue calculada a través de CAPM. Se obtuvo un VAN positivo de $4.116.886.595 y una TIR del 248% en un escenario real con financiamiento. Por lo cual se aconseja realizar el proyecto ya que resulta positivo para los inversionistas. Finalmente, la planificación estratégica está enfocada en la innovación por producto y diferenciación por servicio, como accionas futuras se recomienda diversificar las oferta con nuevos productos innovadores, ya que la competencia nos puede sacar del mercado, en una guerra de precios.
Astudillo, Cabezas Pamela Andrea. "Propiedades texturales de papas fritas y prefritas de la variedad yagana." Tesis, Universidad de Chile, 2005. http://repositorio.uchile.cl/handle/2250/105420.
Full textPhilippus, Ana Cláudia. "Investigação química de extratos de algas pardas do atlântico sul brasileiro." reponame:Repositório Institucional da UFSC, 2016. https://repositorio.ufsc.br/xmlui/handle/123456789/167849.
Full textMade available in DSpace on 2016-09-20T04:26:38Z (GMT). No. of bitstreams: 1 339589.pdf: 2720917 bytes, checksum: c7c298560a1ba7e810b503b1565204fd (MD5) Previous issue date: 2016
Algas pardas da família Dictyotaceae são conhecidas por produzirem uma ampla variedade de metabólitos secundários bioativos. Muitos desses metabólitos já demonstraram potencial antifúngico, antibacteriano, antiviral, além de exercerem múltiplas funções nas algas. Estudos químicos da espécie Canistrocarpus cervicornis levaram ao isolamento de diterpenos dos tipos dolastano e secodolastano, enquanto de Dictyota mertensii foram isolados os guaianos prenilados. Organismos marinhos geralmente apresentam uma diversidade química considerável entre amostras coletadas em locais diferentes. Nesse trabalho foram investigadas as espécies C. cervicornis (C2) e D. mertensii (D5) coletadas na ?Pedra do Paraíso? (CE) e Ilha da Trindade (ES), respectivamente. C2 e D5 foram selecionados por apresentarem resultados promissores a partir de uma triagem das atividades antioxidante e antimicrobiana, realizadas por grupos parceiros. As algas previamente secas foram maceradas em diclorometano/metanol 2:1 e fracionadas através de sucessivas separações cromatográficas, geralmente utilizando sílica gel e solventes de polaridade crescente. O monitoramento de extratos e frações foi realizado por cromatografia em camada delgada. As substâncias isoladas foram analisadas por métodos espectroscópicos. De C. cervicornis foram isolados os diterpenos do tipo dolastano Cc2 (4a-acetóxi-9ß,14a-dihidroxidolasta-1(15),7-dieno) e Cc4 (4a-acetóxi-14a-hidroxidolasta-1(15),7,9-trieno), além de um hidrocarboneto, um ácido graxo e outros 12 compostos ainda não identificados. De D. mertensii foram isolados os diterpenos Dm2 (acetato de dictyol B, do tipo guaiano prenilado) e Dm3 (10-acetóxi-18-hidroxidolabela-2,7-dieno, do tipo dolabelano), os plasticidas Dm1 (ftalato de dipentila) e Dm5 (adipato de bis(2-(2-butoxietoxi) etila), além de outras seis substâncias ainda não identificadas. Dm3 é inédito para D. mertensii e é o primeiro diterpeno do tipo dolabelano isolado da espécie. Considerando os resultados obtidos para ambas as espécies e as variações químicas e biológicas observadas em função do local de coleta, a continuidade dos seus estudos contribui para o esclarecimento da distribuição de metabólitos secundários entre as espécies, bem como do potencial farmacológico e ecológico dos mesmos.
Abstract : Brown algae of Dictyotaceae family are known to produce a wide variety of bioactive secondary metabolites. Many of these metabolites have shown antifungal, antibacterial and antiviral activities, and play multiples functions in algae. Previous investigations on Canistrocarpus cervicornis led to the isolation of dolastane and secodolastane diterpenes, while Dictyota mertensii samples afforded prenylated guaianes. Identical marine organisms present usually a considerable chemicals change among samples collected from different locations. This study investigated species C. cervicornis and D. mertensii collected in ?Pedra do Paraíso? (CE) and Trindade Island (ES), respectively. These extracts were selected after a screening of antioxidant and antimicrobial activities performed by partner groups, since they showed the most promising results. The dried algae were soaked in dichloromethane/methanol 2:1 (v/v) and fractionated by successive chromatographic separations with silica gel and solvents of increasing polarity. Extracts and fractions were monitorated by thin layer chromatography. Isolated compounds were identified by spectroscopic methods. Two diterpenes of dolastane types, Cc2 (4a-acetoxy-9ß, 14a-dihidroxydolasta-1 (15), 7-diene) and Cc4 (4a-acetoxy-14a-hidroxydolasta-1 (15) 7 9-triene), along with a hydrocarbon, a fatty acid and 12 yet unidentified compounds were isolated from C. cervicornis. From D. mertensii were isolated two diterpenes Dm2 (dictyol B acetate, a prenylated guaiane) and Dm3 (10-acetoxy-18-hidroxydolabela-2,7-diene, a dolabellane), besides the plasticizers Dm1 (dipentyl phthalate) and Dm5 (adipate bis (2- (2-butoxyethoxy) ethyl), and six other substances not yet identified. Dm3 is new reported from D. mertensii and it is the first dolabellane isolated in this species. Considering the results obtained for both species, besides chemical and biological changes observed due to the collection site, the continuity of their studies would help to clarify the distribution of secondary metabolites among species, as well as their pharmacological and ecological potential.
Riquelme, Hernández Marcel Alberto. "Proyecto en monitoreo de condiciones para mantenimiento predictivo de palas electromecánicas." Tesis, Universidad de Chile, 2013. http://www.repositorio.uchile.cl/handle/2250/115019.
Full textEl objetivo principal de este trabajo consiste, en idear y desarrollar un proyecto que mejore el actual monitoreo de condiciones de las palas electromecánicas de extracción de mineral de la Compañía Minera Doña Inés de Collahuasi y así aplicar una estrategia de mantenimiento predictivo en éstas. Con este fin, primero se realiza una etapa de investigación sobre la importancia de este tipo de máquinas, sus características mecánicas y eléctricas y las principales fallas de éstas, además del estado del arte con respecto a las técnicas de análisis que permiten desarrollar planes de mantenimiento predictivo en estos equipos. En particular, se estudiará aquellos análisis relacionados con el objetivo el principal del proyecto, es decir, el análisis de vibraciones mecánicas y el análisis de las corrientes de el o los motores eléctricos involucrados en el funcionamiento de las palas electromecánicas. La segunda etapa del trabajo consiste en la definición de cada etapa del proyecto hasta el comienzo de su implementación. Para esto, primero se realiza un análisis de la situación actual del monitoreo con que se cuenta, su funcionamiento y los problemas que posee y que conllevan al mejoramiento de éste. Esto permite determinar los objetivos y características que se deben cumplir y desarrollar una metodología de trabajo del proyecto que se llevará a cabo para determinar las mejores soluciones en monitoreo de condiciones para la compañía. Con la metodología implementada y las características que debe cumplir el proyecto, se analiza a continuación las ofertas existentes en el mercado, y se piden y estudian las propuestas de las empresas licitadas para determinar el mejor sistema a implementar en las palas existentes. La opción más conveniente resulta ser la de la empresa CADETECH que, mediante un contrato por tres años, permite implementar el sistema SiamFlex basado en análisis de vibraciones mecánicas que mejoraría el mantenimiento predictivo de los equipos y permitiría el desarrollo futuro de un análisis conjunto de corrientes eléctricas y vibraciones mecánicas. Además cuenta con experiencia especifica en monitoreo de condiciones de palas electromecánicas en otras faenas mineras chilenas. Finalmente, se da inicio al proyecto y se obtienen los primeros datos en terreno de dos palas de la compañía en sus transmisiones más críticas, generándose conclusiones y recomendaciones preventivas y predictivas a la estrategia de mantenimiento.
Rojas, Zarate Juliano Anthony. "Plan de negocios blindaje en dientes de baldes de palas mineras." Tesis, Universidad de Chile, 2006. http://www.repositorio.uchile.cl/handle/2250/102850.
Full textMerino, Méndez Carlos Gonzalo. "Divergencia de loci microsatélites entre papas silvestres y cultivadas (familia Solanaceae, género Solanum, sección Petota)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2006. https://hdl.handle.net/20.500.12672/816.
Full text--- A kit of 18 microsatellite markers, also referred to as simple sequence repeats (SSR), covering all 12 chromosomes of the potato was previously developed for genotyping the cultivated potato. We have assessed its utility on a sample of 50 wild potato species and 2 other species of the same genus at varying phylogenetic distances from its source, the cultivated potato Solanum tuberosum. The SSR markers produced amplicons in 27% to 100% of the 52 species. A sample of them was sequenced. Although repeat motifs were present in most of the amplicons sequenced, a high degree of single nucleotide polymorphism (SNP) and insertion / deletion events (indel) was observed between the repeat motifs and the primer sequence. These results indicate that: firstly, the 18 microsatellite loci produce amplicons in homologous loci; and secondly, homoplasy will be relatively frequent and hence reduce largely the utility of the cultivated potato SSR kit for phylogenetic studies in wild potato species distant from the cultivated potato germplasm base. Despite this, genetic distance analyses using Jaccard similarity index and Neighbor Joining clustering method produced trees roughly matching hypotheses of cladistic relationships based on recent molecular phylogenies, but not on prior series relationships.
Tesis
Soto, Torres Julián Vicente. "Análisis de la diversidad genética de papa nativa (Solanum spp.) de los departamentos de Ayacucho, Cajamarca, Cuzco, Huancavelica y Puno-Perú, mediante el uso de marcadores moleculares microsatélites." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2006. https://hdl.handle.net/20.500.12672/806.
Full textTesis
Ozden, Bayezid. "Low-cost Seismic Base Isolation Using Scrap Tire Pads (stp)." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607193/index.pdf.
Full texts, automobile tires have been produced by means of vulcanizing rubber with steel mesh in different forms which have a similar effect as the steel plates or fibers inside the conventional elastomer-based isolators. Therefore, rectangular shaped layers cut from tread sections of used tires and then piled on top of each other can function as an elastomeric bearing. Since the tires are being designed for friction, load transfer between scrap tire layers would be large enough to keep all layers intact. A minimal slip generated between the piled layers at high strain rates may even help to dissipate some extra energy. Axial compression, dynamic free vibration, static shear and shaking table tests have been conducted on Scrap Tire Pads (STP) prepared by using different tire brands for different number of layers and orientations. The results have shown that the average shear modulus of STPs change between 0.9MPa and 1.85MPa. At the end of the dynamic tests it has been noticed that the lateral stiffness of STPs can be simply adjusted by changing the number of tread layers placed on top of each other. The amount of wire mesh inside the tire tread layers is relatively low compared to the steel plates in regular elastomeric pads
consequently, axial load capacity of STPs has been found to be around 8.0MPa. Static large deformation shear experiments have been performed to obtain the horizontal stiffness and shear modulus values at high strains and the results are tabulated in the manuscript. Steel and rubber layers are produced separately and just put on top of each other without any adhesive to form the ¼
scaled versions of STPs which were used to isolate a ¼
scaled masonry house on the shaking table available in METU Structural Laboratory. The experiment showed that non-vulcanized rubber-steel layers put on top of each other can also be used to isolate structures. In conclusion, STPs may be used as a low-cost alternative to conventional elastomer-based pads for seismic isolation of massive structures (e.g. stone wall rural masonry) or for temperature induced deformation compensation of rural bridges. STP usage is demonstrated using three hypothetical design examples in the manuscript.
Kingma, Raoul Jacob. "Novel stand-off pads for ultrasound-CT registration and elastography." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/41517.
Full textWitt, Stephen. "The Influence of Under Sleeper Pads on Railway Track Dynamics." Thesis, Linköping University, Department of Management and Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-12232.
Full textIn this work the influence of Under Sleeper Pads on the dynamic forces on a railway track is investigated. A special interest is devoted to the effect of using Under Sleeper Pads in a railway track with changing vertical stiffness. The contact force between wheel and rail and the ballast contact forces are examined. For the investigation a finite element model with the length of thirty sleepers is created and calculations are performed with the software LS-DYNA. Three different cases of varying vertical track stiffness are studied: the transition from an embankment to a bridge, a randomly varying track stiffness along the railway track and hanging sleepers.
Bowers, Dan P. "International churches as launching pads for mission to indigenous peoples." Online full text .pdf document, available to Fuller patrons only, 2003. http://www.tren.com.
Full textLoreto, Alvan Eric P. (Alvan Eric Ponce) 1979. "A standard impact test procedure for football/hockey shoulder pads." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/92627.
Full textPrimo, João Janduy Brasileiro. "PadsTool: uma Ferramenta Gráfica para Mapeamento e Posicionamento dos Pads." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/6126.
Full textCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
EDA Tools (Electronic Design Automation) are used to facilitate the project and layout of Integrated Circuits (IC). Floorplanning is an important step in the layout design phase of the development of an IC. In this step the macroblocks are positioned on the chip, and the following properties are determined: the location of input and output pads, the location of the power pads and the strategies of distribution of the power and clock signal by the core. Commonly a wrapper in HDL that maps the input and output ports of the project in instances of pads is done, with the different types, defined by the developer and a file that indicates the position of each pad on the circuit. Thus, both the mapping and positioning are usually manually done through scripts, generating a great difficulty for developers, because an IC with a reasonable amount of inputs and outputs becomes extremely susceptible to human failure. These files are generally used by all EDA tools as well as by the Design kits suppliers, moreover, the tools have different syntaxes for the files. This work shows a tool with a GUI (Graphical User Interface) able to provide to the developers an easy and intuitive way to manage both the mapping and positioning of the pads, making the process faster and less susceptive to human failure. To validate the work, the tool is tested on some IC projects
As ferramentas EDA (Electronic Design Automation) são utilizadas para facilitar o projeto e desenho de circuitos integrados (CI). O Floorplaning é uma importante etapa na fase de design do layout no desenvolvimento de um CI. Nesta etapa, os macroblocos são posicionados no chip, além de serem decididas: a localização dos pads de entrada e saída, a localização dos pads de alimentação e as estratégias de distribuição da alimentação e do sinal de clock pelo núcleo. Comumente, é feito um wrapper em HDL que mapeia as portas de entrada e saída do projeto em instâncias de Pads, com seus diferentes tipos, definidos pelo desenvolvedor e um arquivo que indica a posição de cada Pad no circuito. Dessa maneira, tanto esse mapeamento quanto tal posicionamento, em geral, são feitos manualmente por meio de scripts, gerando uma dificuldade para os desenvolvedores, pois para um CI com uma quantidade razoável de entradas e saídas esses procedimentos são susceptíveis a falhas. Esses arquivos, em geral, são utilizados em todas as ferramentas EDA e também pelos fornecedores de Design Kits, além disso, as ferramentas possuem sintaxes diferentes para os arquivos. Este trabalho propõe a construção de uma ferramenta com interface gráfica capaz de fornecer aos desenvolvedores uma maneira mais fácil e intuitiva de gerenciar tanto o mapeamento quanto o posicionamento dos pads, tornando o processo mais rápido e menos susceptível a falhas humanas. Para validar o trabalho, a ferramenta é testada em projetos de CI s.
Fernández, Garcés Lidia. "T-REX PHACO: enabling PaaS application using Twelve-Factor App." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235711.
Full textFör att dra nytta av det omfattande utbudet av cloud computing, bör traditionella applikationer anpassas för att överensstämma med de molnbaserade principerna. I det här arbetet omvandlas en traditionell Java-företagsansökan till en cloud-native applikation som kan köras i en plattform som en tjänst med hjälp av molnrelaterade teknologier (Docker, Kubernetes, Openshift) och en automationsserver (Jenkins). Den resulterande tillämpningen följer Twelve-Factor App metodiken och cloud-native principer.