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References: p.41. / Contract DA36-039-AMC-03200(E). Grant DA-SIG-36-039-61-G14. Grant GP-2495. Grant MH-04737-04. Grant NsG-496.

Red rice (Oryza spp.) is one of the main limiting factors to rice (O. sativa L.) yield. After several decades searching for red rice control tools, it was developed imidazolinone tolerant rice, to selectively control red rice. To better understand this technology it were conducted two experiments in 2004/05, in Santa Maria, Rio Grande do Sul state, Brazil. The first experiment (Chapter I) had the objective of: 1) evaluate red rice control by imidazolinone herbicides in Clearfield rice; 2) evaluate the imidazolinone herbicide carryover effect on rygrass and non-tolerant rice (IRGA 417) and 3) evaluate the outcrossing rates between Clearfield rice and red rice. The herbicides tested control red rice. Although injury to Clearfield rice was observed, the herbicide did not affected yield. It was observed herbicide carryover to non-tolerant rice, reducing plant stand. There was natural outcrossing between Clearfield rice and red rice, at rates of 0.065%. The second experiment (Chapter II) had the objective of evaluate the herbicide Only® (imazethapyr 75 g L-1 + imazapic 25 g L-1) in different application rates and timing on two genotypes, IRGA 422 CL and Tuno CL, to the imidazolinones herbicides. When compared with the cultivar, the hybrid was more tolerant to the herbicide Only®. It was possible to apply rates of up to 2.0 L ha-1 in the hybrid, without affecting rice yield. Red rice control was total with split application of Only® in PRE and POST, with rates above 1.25 L ha-1. The most efficient treatment was with application of 0.75 L ha-1 in PRE followed by 0.5 L ha-1 in POS, because, it was the lowest rate that promoted 100% control, with relatively low toxicity to the cultivar and without affecting rice yield. / O arroz-vermelho (Oryza spp.) é um dos principais fatores limitantes da produtividade de grãos do arroz irrigado (O. sativa L.). Após várias décadas de busca de alternativas para o controle seletivo do arroz-vermelho, desenvolveram-se genótipos de arroz tolerante a herbicida do grupo químico das imidazolinonas, o qual controla eficiente e seletivamente esta planta daninha. Para estudar e melhor entender esta tecnologia, conduziu-se dois experimentos em Santa Maria-RS no ano agrícola 2004/05. O primeiro experimento (Capítulo I) teve como objetivos: 1) avaliar a eficiência do controle de arroz-vermelho com o herbicida Only? (imazethapyr 75 g L-1 + imazapic 25 g L-1), 2) avaliar o residual do herbicida no solo através dos danos causados no azevém e em arroz não tolerante e 3) avaliar a taxa de ocorrência de cruzamento natural entre o arroz-vermelho e o arroz cultivado. O herbicida testado controla eficientemente o arroz-vermelho em arroz tolerante. Embora tenha-se observado fitotoxicidade, não houve redução na produtividade da cultivar tolerante. O estande inicial da cultivar IRGA 417 é afetado pelo residual do herbicida presente no solo. Ocorre cruzamento natural entre o arroz-vermelho e o arroz cultivado, sendo que a taxa de ocorrência obtida no experimento foi de 0,065%. O segundo experimento (Capítulo II) teve como objetivo avaliar o controle de arroz-vermelho e o desempenho de dois genótipos de arroz irrigado, IRGA 422 CL e Tuno CL, tolerantes a herbicidas do grupo das imidazolinonas a doses e épocas de aplicações do herbicida Only? , em áreas com alta infestação de arroz-vermelho. Constata-se que o híbrido é mais tolerante ao herbicida Only? , quando comparado à cultivar IRGA 422 CL, sendo possível a utilização de dose total de até 2,0 L ha-1 no híbrido, em áreas com alta infestação de arroz-vermelho, sem afetar a produtividade. O controle de arroz-vermelho é total com aplicação fracionada do herbicida em pré e pós-emergência (PRE + POS), desde que o total aplicado não seja inferior a 1,25 L ha-1. Esta condição é atendida pelo tratamento com 0,75 L ha-1 em PRE mais 0,5 L ha-1 em POS, o qual propicia a menor dose total dentre aqueles com 100% de controle, não afetando a produtividade e com fitotoxicidade semelhante ao tratamento com 1,0 L ha-1 em POS, utilizado como referência.

Detta arbete har utförts i samarbete med Saab Seaeye och rör deras undervattensfarkost Sabertooth. En lokal GPS (global positioning system) genererar en PPS-signal (pulse per second) som används till att synkronisera klockor runtom i farkosten. Om denna signal har för hög överlagrad störning så kommer inte enheter fungera önskvärt. Farkosten ska klara djup ner till 3000 m, varför elektroniken placeras tätt i en tryckbehållare, vilket leder till en störande miljö. Dessutom ska inte redan existerande delar av systemet störas ut om farkosten expanderas genom att koppla in fler enheter. Arbetets syfte var att hitta källan till störningar på PPS-signalen samt undersöka och verifiera metoder som skyddar mot dessa störningar. De metoder som har undersökts är differentiell signalering (RS-422), optoisolering samt buffersteg. De kabeltyper som har undersökts är koaxialkabel, tvinnade kablar utan skärm (UTP) och tvinnade kablar med skärm (STP) som jordas endast hos sändare eller hos både sändare och mottagare. Den störande miljön är fortfarande ett problem i farkosten, men genom användning av antingen koaxialkabeln eller STP så lyckades störningarna reduceras markant. Att även isolera kommunikationsenheten med resterande system och implementera kraftfulla drivkretsar ger möjligheten till expandering utan att påverka redan existerande enheter.

This thesis investigates the phonology of loanword adaptation focusing on English loanwords in Urban Hijazi Arabic (UHA). It investigates the segmental adaptations of English consonants that are absent in UHA as well as the various phonological adaptations of illicit syllabic structures. It is based on dataset of around 100 English loanwords that were integrated into UHA that contain several illicit consonants and syllable structures in the donor language. This dataset is compiled from different published sources along with a data collection exercise. The first significant source is Abdul-Rahim (2011) a dictionary of loanwords into Arabic, while the other one is Jarrah's (2013) study of English loanwords into Madinah Hijazi Arabic (MHA) adopting the on-line adaptation. The third source is original pronunciation data collected from current UHA speakers. Furthermore, the Oxford English Dictionary (OED) was consulted for the etymology and transcription of the English words. The goal is to provide a thorough analysis of these phonological patterns whether consonantal or syllabic ones found in the adaptation of English loanwords into UHA. To accomplish this, the adaptations have been analysed according to two theoretical frameworks: the Theory of Constraints and Repair Strategies Loanword Model (TCRSLM) proposed by Paradis and LaCharité (1997) and Optimality Theory (OT) introduced by Prince and Smolensky (1993). The different proposed analyses in this study facilitated an evaluation of the adequacy of each of these theories in accounting for the discussed phonological patterns found in UHA loan phonology. The thesis concludes that OT better explains the adaptations, but neither theory fully accounts for the variety of adaptations found in UHA.

The thesis deals with the analysis, software design and the study of 3D kinematic model of robotic manipulator ROB 2-6. It creates the control software for this manipulator, containing user interface based on MFC applications. Moreover, the thesis is concentrated on the solution of various problems, e.g. non-linearity of servomotor or the limitation of manipulator´s attainability. Finally, it poses a documentation of the single project and offers new possibilities of further development in the control of this manipulator.

En el presente trabajo de investigación se analizó el proceso de pilado de arroz en la empresa Molino Chiclayo S.A.C, una empresa molinera de Lambayeque, con el objetivo principal de aumentar su productividad. Este análisis consistió en realizar un diagnóstico de la situación actual de la empresa, lo que permitió identificar los problemas que reducen la eficiencia del proceso, sobre la base de indicadores de producción, productividad, eficiencia y capacidad. Identificando de esta manera las actividades que limitan la productividad en el proceso de pilado de arroz, realizando el diagrama de operaciones para el estudio de métodos. Se observó que el principal limitante es la etapa del secado, debido a que en la empresa realizan esta etapa de manera artesanal, con una duración de 586 minutos y un bajo rendimiento del grano (56,22%). Otra limitante del proceso es la falta de mantenimiento preventivo, ocasionando un gran número de fallas, en el año 2016 se obtuvieron un total de 188 paradas y un tiempo de parada total de 688 horas. Una vez identificado las actividades que limitan la productividad, fue necesario proponer e implementar un nuevo método, esto implicaría adquirir nueva tecnología. Es por ello que se propuso implementar una máquina de secado, lo cual reducirá el cuello de botella y aumentará el rendimiento del grano. Además, se elaboró un plan de mantenimiento preventivo para minimizar y prever fallas a lo largo de su operación en el año. Con la propuesta, la eficiencia en la empresa Molino Chiclayo S.A.C. fue aumentada en 12,78%, lo que conllevó el aumento de la productividad de materia prima 0,011 sacos de arroz pilado/kg arroz cáscara a 0,014 sacos de arroz pilado/kg arroz cáscara, se disminuyó la capacidad ociosa de 320 a 142 sacos de arroz pilado/día. En cuanto al beneficio, se obtuvo que la empresa al aplicar las propuestas de mejora es de 2,44 soles por cada sol invertido.

<p>This report is a result of a thesis work done for Linköping University at Contraves Space AG in Zürich, Switzerland. The aim was to perform an analysis of 12 interface standards and construct a simple breadboard, which should function as a testsystem for the data communication interface MIL-STD-1553. </p><p>The conclusion of the extensive analysis is that SpaceWire, MIL-STD-1553 and CAN are the most interesting interfaces for future data communication in spacecrafts. In the breadboard part of the work, a test system was built and data gathered with help from a demonstration program that came with one of the components.</p>

This report is a result of a thesis work done for Linköping University at Contraves Space AG in Zürich, Switzerland. The aim was to perform an analysis of 12 interface standards and construct a simple breadboard, which should function as a testsystem for the data communication interface MIL-STD-1553. The conclusion of the extensive analysis is that SpaceWire, MIL-STD-1553 and CAN are the most interesting interfaces for future data communication in spacecrafts. In the breadboard part of the work, a test system was built and data gathered with help from a demonstration program that came with one of the components.

No description available.