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Bukowski, Meike [Verfasser], Bernd [Akademischer Betreuer] Siebenhüner i Ulrich [Akademischer Betreuer] Scheele. "Environmental conflicts and conservation justice (CJC) in marine protection : a CJC-analysis / Meike Bukowski ; Bernd Siebenhüner, Ulrich Scheele". Oldenburg : BIS der Universität Oldenburg, 2018. http://d-nb.info/1181325218/34.
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Bukowski, Meike Verfasser], Bernd [Akademischer Betreuer] [Siebenhüner i Ulrich [Akademischer Betreuer] Scheele. "Environmental conflicts and conservation justice (CJC) in marine protection : a CJC-analysis / Meike Bukowski ; Bernd Siebenhüner, Ulrich Scheele". Oldenburg : BIS der Universität Oldenburg, 2018. http://nbn-resolving.de/urn:nbn:de:gbv:715-oops-40556.
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Badenes, Marina Martins. "In vivo evaluation of the role of Delta-like 4/Notch signaling in the development of intestinal tumors". Doctoral thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2016. http://hdl.handle.net/10400.5/11190.
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Tese de Doutoramento em Ciências Veterinárias, especialidade de Ciências Biológicas e BiomédicasColorectal cancer (CRC) is the third most common malignancy and the second leading cause of cancer-related death in the Western world. Dll4/Notch signaling has been shown to regulate tumor angiogenesis and cancer stem cell maintenance in CRC, but how it affects the intestinal precancerous lesions that lead to CRC initiation is not known. Therefore we evaluated the role of Dll4/Notch pathway during intestinal tumorigenesis. For that we used two well-established mouse models of CRC, the ApcMin/+ autochthonous transgenic model and the azoxymethane plus dextran sodium sulphate chemically induced model of chronic colitis associated-cancer (CAC). First we analyzed the protein expression pattern of Dll4 and other Notch pathway members in these settings relatively to that in the normal gut. Then we evaluated the effect of endothelial-specific or ubiquitous Dll4 deregulation and performed a therapeutic trial with the Dll4 inhibitor Dll4-Fc. This protein was administered alone, and in combination with the epidermal growth factor receptor (EGFR)-specific tyrosine kinase inhibitor erlotinib to assess if the anti-Dll4 therapy mediated vascular defects impaired the delivery of other anti-cancer drugs to the tumors. We observed that the Notch pathway is activated in the two studied models of CRC. The normal protein expression pattern of Notch pathway members in the gut is altered in chronic colitis and in ApcMin/+ and colitis-driven intestinal tumors. Dll4 is the most upregulated ligand in the intestinal adenomas in both models of CRC and is present in both tumor epithelium and stroma. Both Dll4 blockade (endothelial-specific and ubiquitously) and activation (endothelial-specific) have an inhibitory effect on intestinal tumor initiation and growth by promoting a noncompetent vasculature or decreasing the vessel density, respectively. Besides its angiogenic related effects, Dll4/Notch pathway promotes excessive inflammation in CAC, sustains the tumor stem cell pool and tumor proliferation synergistically with Wnt signaling, and inhibits differentiation mainly of the secretory cells. In addition, the effectiveness of erlotinib is not affected by Dll4-Fc, where these therapies additively inhibit intestinal tumorigenesis.
RESUMO - Avaliação in vivo da função da sinalização intercelular Dll4/Notch no desenvolvimento de tumores intestinais - O cancro colo-rectal (CCR) é o terceiro tipo de cancro mais comum e é uma das principais causas de morte no Mundo Ocidental. O CCR geralmente desenvolve-se esporadicamente, mas também pode ser hereditário como na síndrome polipose adenomatosa familiar (PAF). A PAF está associada à ativação da via de sinalização Wnt através de mutações no gene supressor tumoral Adenomatous Polyposis Coli (APC), que também ocorre frequentemente nos CCR esporádicos. O desenvolvimento do CCR também pode estar associado a inflamação crónica, nomeadamente à doença de Crohn (CD) e à colite ulcerativa (UC). Infelizmente o desenvolvimento de novas estratégias terapêuticas ou preventivas que tenham como alvo vias de sinalização críticas no desenvolvimento do CCR continua a ser extremamente necessário. Uma dessas estratégias tem como alvo a angiogénese tumoral. O primeiro agente anti-angiogénico a ser aprovado foi o Bevacizumab, que é usado em combinação com outros fármacos no tratamento do CCR metastático. No entanto, a utilização deste fármaco leva ao aparecimento de efeitos secundários e resistência tumoral e em tumores não metastáticos não se tem mostrado eficaz. Assim, continua a ser necessário desenvolver melhores estratégias terapêuticas anti-angiogénicas...
Centro de Investigação Interdisciplinar em Sanidade Animal (CIISA) e União Europeia: Fundo Social Europeu
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Ede, Andrew, i andrew ede@premiers qld gov au. "The Prevention of Police Corruption and Misconduct: A Criminological Analysis of Complaints Against Police". Griffith University. School of Criminology and Criminal Justice, 2000. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030102.114721.
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The reform measures recommended by the Commission of Inquiry into Possible Illegal Activities and Associated Police Misconduct (referred to as the "Fitzgerald Inquiry") radically transformed the face of policing in Queensland. The most significant of these recommendations was the establishment of an external oversight body, the Criminal Justice Commission (CJC), which has independence from executive government and holds the power to investigate not only police but any public servant or politician. Other recommendations included "Whistleblower" legislation, increasing sanctions for serious misconduct, lateral recruitment and promotion by merit rather than seniority. The first main research question tested in this thesis is whether these reform measures have produced improvements in the following areas: the efficiency and effectiveness of the processes for dealing with complaints against police; public confidence in those processes and the public standing of the Queensland Police Service (QPS) generally; standards of police behaviour; the incidence of corrupt conduct; and police attitudes towards reporting misconduct by their fellow officers. These Fitzgerald Inquiry reforms were strategies primarily derived from two schools of thought describing the nature and cause of police corruption: deterrence based theory (including "individual" or "rotten apple" theory) and cultural (also labeled "cultural" or "socialisation") based theory. To date most strategies used to combat police corruption have been underpinned by these theories. A third theory - situational based theory (sometimes titled "environmental" or "opportunity" theory) - which has had success in crime prevention, has been scarcely used in the area of police corruption. However, an extensive body of research has affirmed the effects of situational factors on police behaviour, suggesting the potential for the application of situational crime prevention initiatives in combatting police corruption. The second research question proposed in this thesis is whether situational based theory could also be beneficial in the prevention of police corruption. Data drawn upon to test the first research question were interviews and surveys with police officers, public attitude surveys and statistics from the processing of complaints against police. Although each source has limitations, collectively the data are sufficiently comprehensive - and robust - to defend conclusions about the general direction of the changes which have occurred. These data indicate that the Fitzgerald Inquiry reforms have, at least to some degree, had their intended impact on the QPS. These reforms have contributed to an apparent improvement in public confidence in the complaints system and the QPS generally. Moreover, the available evidence suggests that the Fitzgerald Inquiry reforms have resulted in a weakening of the police code of silence. As far as the specific issue of corruption in the QPS is concerned, it is difficult to draw firm conclusions from existing data sources. However, the weight of the available evidence is that such conduct is less pervasive and occurs at lower levels than was the case in the pre-Fitzgerald Inquiry QPS. It is very difficult to ascertain which reform components were the most effective and which were not helpful at all, as these reform measures were initiated simultaneously. For example, the negative elements of the police culture may have been eliminated or reduced but whether it was the cultural strategies or one of the deterrence based strategies influencing officer behaviour remains unknown. The second main research question the thesis poses is that the use of situational crime prevention techniques has potential for contributing to the prevention of police corruption. A situational analysis of complaints against police data, including the development of a typology for classifying types of police corruption and misconduct, was used as an example of how this may be accomplished in Queensland. The study provides some, albeit limited, support for the hypothesis that situational crime prevention methods are applicable to police corruption. Based upon three years of complaints data, enough homogenous cases were gathered to enable the analysis of four categories of police corruption - Opportunistic Thefts, Driving under the Influence, Assault (while off-duty), and Theft from Employer. Given that this study only used three years of complaints data held by the CJC and more than nine years of data exist, productive situational analyses of many other categories of corruption is probable. This study also illustrated that complaints against police data are being under utilised by the QPS and the CJC. For future research in the situational analysis of complaints data, I recommend improving the gathering of data from complaints files for storage in electronic form to enable situational prevention analysis to be conducted more readily. A geographical example was used to illustrate further how complaints against police data could be more extensively utilised as a prevention tool. This analysis was conducted at an organisation unit level determined primarily by geographical factors. The complaint patterns of units of similar "task environments", as measured by unit size and type of duties performed, were compared in an attempt to identify those units experiencing the presence or absence of "bad apples" or a "negative culture". This study led to the conclusion that a divisional analysis of complaints data can provide information valuable in combatting police corruption. When task environment was held constant, it was possible to identify units experiencing the effects of possible "bad apples" and/or "negative cultures". Once these particular units were identified, intervention strategies to address the units' particular problem could be constructed. Future research in this area would involve ongoing divisional data analysis followed-up by individual assessment of officers identified as "bad apples", or a "compare-and-contrast" procedure to distinguish features requiring correction in units identified as having a "negative culture". The research findings presented in this thesis are that progress has occurred in a number of areas in addressing the problems identified by the Fitzgerald Inquiry, but that there is undoubtedly scope for more to be achieved. Despite the very significant increase in the resources and powers available to investigators post-Fitzgerald, it is still difficult to prove that a police officer engaged in misconduct, or that other officers were aware of this fact and had failed to take action, because of the constraints imposed by evidentiary and legal requirements. Thus, while it is vital to maintain an effective and credible independent complaints investigation system and ensure that there is a proper internal discipline process in place, the scope for increasing the "deterrent power" of the present system is limited. Putting more resources into complaints investigations might make a difference at the margins, but is unlikely to lead to a significant increase in the probability of a complaint being substantiated and a sanction imposed. Investing more resources in investigations has an additional cost in that such resources are then lost to other efforts to combat corruption that may provide more fruitful results in the long term. The value of an occasional substantiation is placed above the ability to engage in a large amount of prevention work. Inevitably then, three clear messages are apparent. First, continued effort must be made to modify the organisational climate of the QPS in terms of commitment to integrity. Recommended strategies to accomplish this end are to continue the recruitment of more educated, female and older officers to reduce police-citizen conflict and the negative elements of the police culture, and also to develop a comprehensive, integrated approach to ethics education for QPS officers at all ranks and positions. Second, other forms of deterrence against misconduct are needed such as the use of covert strategies like integrity testing which could be conducted in conjunction with the CJC. Third, a greater emphasis needs to be placed on developing and implementing preventive strategies. This thesis has shown that valuable prevention strategies can be gained from situational and divisional analysis of complaints data, and a range of proactive management options based upon situational crime prevention theory are recommended. These strategies have application in any police service.
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Rezai, Armon. "Demand and distribution in integrated economies". Oxford University Press, 2014. http://dx.doi.org/10.1093/cje/beu060.
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Aggregate demand is influenced by the functional income distribution of an economy and that of its trading partners. This relationship between income distribution and output is analyzed in a short-run two-country Neo-Kaleckian model. The effects of devaluation and redistribution are discussed in detail. Trade and redistribution within one country interact and output increases or decreases with changes in either depending on the specific distributional and exchange rate movements. The Marshall-Lerner condition is shown to be equivalent to the assumption of expansionary devaluation. If devaluation increases output, national redistribution policy toward wage earners is also more likely to be expansionary. (author's abstract)
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Coimbra, Daniel Fernando. "Natureza da ligação Ru-NO em novos nitrosilo complexos de rutênio com ligantes quelantes CCC e CNC contendo carbenos". reponame:Repositório Institucional da UFSC, 2015. https://repositorio.ufsc.br/xmlui/handle/123456789/136460.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2015.Made available in DSpace on 2015-11-17T03:05:39Z (GMT). No. of bitstreams: 1 335949.pdf: 3299080 bytes, checksum: fc7c42f7c1c0103a1f2daa1e2f7d6199 (MD5) Previous issue date: 2015
Compostos capazes de liberar ou sequestrar óxido nítrico são promissores agentes terapêuticos como antimicrobianos, reguladores da pressão sanguínea, no combate ao câncer, dentre outros. Neste trabalho foram investigados novos nitrosilo complexos de rutênio, potencialmente liberadores de óxido nítrico, contendo ligantes pinça quelantes tridentados em que dois sítios coordenantes são carbenos N heterociclos ligados por uma ponte fenila ou piridil que também coordena-se ao centro metálico. Derivados destes complexos são obtidos pela substituição de grupos alquila no átomo de nitrogênio dos grupos imidazolilideno. A estrutura geométrica e eletrônica destes complexos organometálicos e de seus produtos de redução monoeletrônica foram investigadas por métodos computacionais empregando-se a Teoria do Funcional da Densidade (DFT). A natureza da ligação química Ru NO foi estudada utilizando-se as técnicas de Análise de Decomposição de Energia de Su-Li (Su-Li EDA) e Orbitais Naturais de Ligação (NBO). Neste trabalho também foi avaliada uma metodologia para a predição de potenciais de redução dos nitrosilo complexos de rutênio estudados.
Abstract : Compounds capable of releasing or scavenging nitric oxide are promising therapeutic agents as antimicrobials, blood pressure regulators, in cancer treatment and many others. In this work were investigated new ruthenium nitrosyl complexes, potentially capable of releasing nitric oxide, containing chelating tridentade pincer ligands in which two coordinating sites are N-heterocyclic carbenes united by a bridging coordinating phenyl or pyridyl unit. Derivatives of these complexes are obtained by substitution of alkyl groups at the imidazolylidene nitrogen. The geometric and electronic structure of these organometallic complexes and their one-electron reduction products were investigated by computational methods employing Density Functional Theory. The nature of the Ru NO chemical bond was investigated using the Energy Decomposition Analysis of Su-Li and Natural Bond Orbitals. In this work it was also evaluated a methodology for the prediction of reduction potentials of the ruthenium nitrosyl complexes under investigation.
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Coupar, Sally-Anne. "The chronology and development of the coinage of Corinth to the Peloponnesian War". Thesis, University of Glasgow, 2000. http://theses.gla.ac.uk/2557/.
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This study's objective is to elucidate the numismatic history of the city of Corinth from the inception of the coinage to the beginning of the Peloponnesian War in 431BC. The method used in pursuit of the objective was to carry out a comprehensive die study which collected and analysed all known Corinthian dies with curved wing Pegasus type. Hoard and overstrike evidence was used to help order the sequence of the dies, as was the stylistic development. The numismatic, historical and archaeological evidence provided key dates which anchored the sequence and allowed the chronology of the coinage of Corinth to be revealed. The results of this study show that Corinth was one of the earliest Greek cities to issue coins. The silver necessary for the coinage was obtained from the coins of other cities and probably also from mines in the Thrace and Macedonian area. The main mint of Corinth was supplemented by an auxiliary mint at times and it also provided either dies or coins for Corinthian colonies. This study's conclusions indicate that the output from the Corinthian mint was sustained and prolific, and participation in the Corinthian economy was rigorously controlled by the city authorities. This study has also shown that the only evidence for a break in activity at the Corinthian mint is in the mid 450's BC, and that the operation of the mint was not affected by the outbreak of the Peloponnesian War.
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Kandaskalov, Dmytro. "Etude théorique de défauts ponctuels et complexes dans les métaux : application au fer-cc et nickel-cfc". Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0007/document.
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L’étude des défauts ponctuels (lacunes, impuretés) et des complexes (cavités, joints de grains, etc.) est un domaine important de la physique du solide. Les propriétés physiques et chimiques des matériaux (élasticité, plasticité, fragilité, etc.) sont très souvent corrélées à la présence de ces défauts. Les techniques expérimentales ne sont cependant pas toujours en mesure de fournir une compréhension suffisante de ceux-ci. Dans ce cas-là, les simulations numériques et la modélisation à l’échelle atomique sont des outils utiles pour interpréter les résultats expérimentaux. Mon travail de thèse se situe dans ce cadre. Le manuscrit comporte 4 principales parties. Dans la première et la deuxième partie, nous présentons les principes de la DFT et la méthodologie utilisée dans cette thèse. La troisième partie de ce manuscrit résume l’étude théorique par DFT de la formation, la migration et la diffusion de différentes configurations de multi-lacunes Vn(n=1-15) dans le fer cubique centré. Les configurations de Vn les plus stables y sont décrites en détail : les énergies de formation, de liaison et de piégeage. La migration de différentes multilacunes est discutée en détail d’un point de vue énergétique et configurationnelle. Dans la dernière partie, nous nous intéressons à l’absorption du soufre dans différents sites (interstitiel et substitutionnel) du massif de Ni et sa ségrégation vers les surfaces Ni (100) et Ni (111). L’étude du soufre en volume permet de clarifie sa position en solution solide. Nous discutons des interactions soufre-soufre et avec le métal de base. La ségrégation et l’absorption sur des surfaces libres du nickel est aussi abordée en détailThe study of point defects (vacancies, impurity) and complex defects (cavities, grain boundary etc.) is a major challenge for solid state physics. The physical and chemical properties of materials (such elasticity, plasticity, embrittlement etc.) are correlated to the presence of these defects. The experimental study is not always able to bring sufficient information about them. In this way computational simulations and the modeling on the atomic level is efficient to interpret the experimental results and to obtain new informations. This PhD work consists also in a theoretical study of defects in metals. This manuscript is organized in four main parts. In the first and second part, we present the theoretical principles and the methodology used in this work. In the third part, we report a long discussion on the study of formation, migration and diffusion of multivacancies Vn in the bcc-iron system. The main objective of this study is to identify and to analyze most stable configurations of multivacancies for different sizes of Vn (n=1-15) in Fe. The migration is also investigated. In the last part, we present a study of S atoms in nickel. The different sites (interstitial and substitutional sites) in solid solution of nickel-fcc and the segregation of sulfur on and in the Ni(100) and Ni(111) surfaces are discussed. The study of sulfur in the bulk shows that the atoms S occupy the substitutional sites. The S-S and S-Ni interactions are also presented. We conclude by a discussion on the segregation and the adsorption on free surfaces
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Cima, Franciele Fatima. "Capacidade de combinação de genitores, parâmetros genéticos de aparência e de rendimento de tubérculos e características de qualidade funcional e industrial de clones de batata". Universidade Federal de Pelotas, 2018. http://guaiaca.ufpel.edu.br:8080/handle/prefix/4111.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
Batatas com polpa colorida contêm altas concentrações de antioxidantes, incluindo ácidos fenólicos, antocianinas e carotenoides. Esses fitoquímicos apresentam efeitos terapêuticos e promotores da saúde humana, exercendo papel-chave na prevenção e/ou tratamento de doenças crônicas. O crescente interesse nos benefícios à saúde adquiridos através da alimentação tem contribuído para o aumento do consumo dessas batatas “especiais” e crescimento de um mercado especializado. Para atender a demanda desse nicho de mercado é imprescindível o desenvolvimento de cultivares de polpa colorida e, para o rápido progresso, é fundamental a escolha correta dos genitores e procedimentos eficientes de seleção. Nesse sentido, foram desenvolvidos três estudos. O primeiro visou estimar capacidade de combinação de clones de batata de polpa colorida e de polpa creme e amarelo claro para caracteres de aparência externa e interna e de rendimento de tubérculos. Foram avaliadas oito famílias segregantes de batata, em modelo de dialelo parcial (3x3). Verificou-se que há predomínio de efeitos aditivos de genes no controle de caracteres de aparência e de rendimento de tubérculos. O segundo estudo visou estimar parâmetros genéticos de caracteres de aparência externa e interna e de rendimento de tubérculos, e suas implicações na seleção, em uma população híbrida constituída de 12 famílias segregantes para cor da polpa. Os resultados sugerem que pode se aplicar forte pressão de seleção para os caracteres cor da película, cor predominante da polpa, cor secundária da polpa e distribuição da cor secundária, e seleção leve a moderada para profundidade de gemas, formato e aparência geral de tubérculo, na primeira geração clonal. O terceiro estudo visou caracterizar 12 clones de batata de polpa colorida quanto à concentração de compostos bioativos, caracteres de qualidade industrial e de rendimento de tubérculos. Os clones C2715-01-09, C2721-22-09 e C2743-01-09 apresentam elevadas concentrações de compostos bioativos e alta capacidade antioxidante, além de boas características de qualidade de processamento e bom potencial produtivo. O clone C2743-09-09 é o mais produtivo e possui atributos para fritura, porém apresenta teores mais baixos de compostos bioativos e atividade antioxidante mediana.
Colored fleshed potatoes contain high concentrations of antioxidants, including phenolic acids, anthocyanins and carotenoids. These phytochemicals have therapeutic effects and promoters of human health, playing a key role in the prevention and/or treatment of chronic diseases. The growing interest in the health benefits acquired through food has contributed to increase consumption of these "special" potatoes and growth of a specialized market. In order to meet the demand of this market niche, the development of colored fleshed varieties is essential, and for a fast progress it is fundamental the correct parental choice and efficient selection procedures. In this sense, three studies were developed. The first aimed to estimate combining ability of colored fleshed and cream and light yellow fleshed potato clones in the external and internal tuber appearance, and tuber yield. Eight segregating potato families were evaluated using a partial diallel design (3x3). It was verified that there is a predominance of additive effects of genes in the control of tuber appearance and yield traits. The second study aimed to estimate genetic parameters of tuber external and internal appearance and yield traits, and their implications on selection, in a hybrid population consisting of 12 segregating families for flesh color. The results suggest that a high pressure of selection can be applied to the traits color of the skin, predominant color of the flesh, secondary color of the flesh and distribution of secondary color, and mild to moderate selection for bud depth, shape and overall appearance of tuber, in the first clonal generation. The third study aimed to characterize 12 colored flesh potato clones as to the concentration of bioactive compounds, processing quality traits and tuber yield. Clones C2715-01-09, C2721-22-09 and C2743-01-09 present high concentrations of bioactive compounds and high antioxidant capacity, besides good processing quality traits and good yield potential. The clone C2743-09-09 is the most productive and has frying attributes, but presents lower levels of bioactive compounds, and medium antioxidant activity.
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Machado, Gilmara de Oliveira. "Preparação e caracterização de CMC e CMC graftizada". Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/88/88131/tde-11092001-160555/.
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Polpa celulósica, para obtenção de carboximetilcelulose (CMC), foi obtida a partir do bagaço de cana-de-açúcar através de separação do material em fração fibrosa e medula, sua pré-hidrólise, posterior polpação soda/antraquinona e etanol/água. A polpa soda/antraquinona da fração fibra foi submetida ao processo de branqueamento para obter um material rico em celulose de alta pureza. A polpa branqueada da fração fibra foi utilizada na preparação da CMC na forma de sal de sódio e lítio. Para reações de enxertia foram utilizadas amostras de CMC preparadas no laboratório e comerciais usando isocianatos comerciais e sintetizados. Tanto a CMC como a CMC enxertada foram caracterizadas através de análises térmicas (DSC, TGA), espectroscopia no infravermelho (IV), ressonância magnética nuclear de carbono 13 (RMN 13C) e por microscopia eletrônica de varredura (MEV) e Espectroscopia Dispersiva de Raios-X (EDX). A análise detalhada dos espectros de IV e RMN 13C indica a formação de ligações uretanas em diferentes números de onda e deslocamentos químicos dependendo da CMC e isocianato utilizado. Também observa-se uma pequena mudança na linha de base da curva de DSC indicando uma possível transição vítrea da CMC que diminui após a enxertia da CMC com isocianato. Micrografias de MEV mostraram mudanças estruturais com as reações e a análise através de (EDX) um aumento no teor de carbono e diminuição no de oxigênio com as graftizações. Medidas de condutividade demonstraram que a NaCMC graftizada com isocianato de poli(óxido de propileno) apresenta condutividade de 10-5 S/cm a 100oC, comparável com outros eletrólitos sólidos poliméricosThe cellulosic pulp obtained from sugar cane bagasse was used to synthesize carboxymethylcellulose (CMC), the substrate for the grafting reactions with mono and di-isocyanathes. The sugar cane bagasse was separated into fiber and non-fiber fractions that then were submitted to the pre-hydrolyses and pulping reactions (sodium hydroxide/anthraquinone and ethanol/water). After that the sodium hydroxide/anthraquinone pulp of the fiber fraction was bleached to obtain a high purity cellulosic material. This cellulose was used to obtain the sodium and lithium salts of CMC (NaCMC and LiCMC respectively). Then these samples were used for grafting reactions with commercial octadecylisocyanate and hexamethylene-diisocyanate and synthesized monoisocyanate of poly(propylene oxide). All the samples were characterized through thermal analyses (DSC/TGA), infra-red spectroscopy (IR), solid state 13C nuclear magnetic resonance (13C-NMR), scanning electron microscopy (SEM) and X-ray diffraction (XRD). The thermal analysis indicate a possible glass transition of CMC at about 65oC that decreases for to about 29oC after the grafting reaction with isocyanate. The micrographs show structural changes occurred during the several reactions confirmed by thermal analysis. The detailed analysis of IR and NMR 13C spectra of grafted samples indicated the formation of urethane bonds. Conductivity measurements of NaCMC grafted with the poly(propylene oxide) isocyanate gave the value of 10-5 S/cm at 100oC that is comparable with other polymeric solid electrolytes.
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Bergamini, Jeffrey Albert. "Virterrain 3D visual earth environment simulation /". View Senior Project online:, 2003. http://srproj.lib.calpoly.edu/projects/CSC/bbergamini.
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Pratt, Stephen Wells. "The design and implementations of a push down automaton simulator senior project /". Download online PDASimulator Zip file, 2004. http://srproj.lib.calpoly.edu/projects/csc/spratt/.
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Passi, Emilio C. "Bloom's taxonomy agent /". View online record:, 2000. http://srproj.lib.calpoly.edu/projects/csc/Passi%5FEmilio/.
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Zanotelli, Tiago. "Técnicas multivariadas para detecção das respostas auditivas em regime permanente". Universidade Federal de Minas Gerais, 2011. http://hdl.handle.net/1843/CJTC-8T7LY6.
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Auditory Steady-State Response (ASSR) is a potential elicited in the brain due to stimulation rapid stimulation enough that the response to a given stimulus overlaps the response the next stimulus. Detection of ASSR has been used to estimate a physiological audiometric, especially in individuals who do not respond to conventional tonal exam. Multivariate techniques of Objective Response Detection (ORD) which use energy information (F Spectral Test), phase (Component Synchrony Measure CSM) and coherence (Magnitude Square Coherence MSC) have been used to identify ASSR. One of the problems of the ASSR exam is its duration, which varies from 45 to 60 minutes. The present dissertation aims to investigate the use of Multivariate ORD (MORD) to detect ASSR with AM tones, to reduce detection time. The MORD techniques used were: Multiple Component Synchrony Measure (MCSM) and Multiple Magnitude Squared Coherence (MMSC). The EEG signals were collected from eight (8) healthy volunteers in F3, F4, Fz, C3, C4, Cz, P3, P4, Pz, T3, T4 and Oz during two sessions of 16 minutes stimulation with intensities of 60 and 40 dB SPL. In each session, a stimulus was presented simultaneously on the left and right ears composed of 4 AM tones carriers of 0.5, 1, 2 and 4 kHz for both ears and modulated, respectively, at 78, 83, 88 and 92 Hz for the right ear and 81, 85, 90 and 95 Hz for the left. Results showed that the use of MORD techniques with 5 channels can reduce ASSR detection time in up to 25.15% (MMSC) compared to the ORD techniques (MSC). Thus, MORD techniques were seen as a promising tool, for ASSR detection, and can be used to reduce acquirement times for physiological auditory threshold.A Resposta Auditiva em Regime Permanente (ASSR) é um potencial eliciado no córtex devido a uma estimulação rápida o suficiente para que a resposta a um dado estímulo sobreponha à resposta do estímulo seguinte. A detecção da ASSR tem sido utilizada na estimação de um perfil audiométrico fisiológico abrangente, principalmente em indivíduos que não podem responder aos exames convencionais. Técnicas univariadas de detecção objetiva (ORD) que utilizam informação de energia (Teste Espectral F), fase (Medida de Sincronismo de Componente - CSM) e coerência (Magnitude Quadrática da Coerência - MSC) têm sido utilizadas para identificar a ASSR. Um dos problemas do exame de ASSR é a sua duração, entre 45 e 60 minutos. A presente dissertação tem por objetivo investigar a utilização de técnicas ORD Multivariadas (MORD) para detectar a ASSR com tons AM, visando reduzir o tempo de sua detecção. As técnicas MORD utilizadas foram: a Medida de Sincronismo de Componente Múltipla (MCSM) e a Magnitude Quadrática da Coerência Múltipla (MMSC). Os sinais de EEG foram coletados de oito (8) indivíduos saudáveis em F3, F4, Fz, C3, C4, Cz, P3, P4, Pz, T3, T4 e Oz durante duas sessões de 16 minutos de estimulação auditiva com intensidades de 60 e 40 dB SPL. Em cada sessão, apresentou-se simultaneamente na orelha esquerda e na direita um estímulo constituído por quatro tons AM portadoras de 0,5, 1, 2 e 4 kHz para ambas as orelhas e modulantes de 78, 83, 88, 92 Hz para a orelha direita e 81, 85, 90, 95 Hz para a esquerda. Os resultados mostraram que, com a utilização das técnicas de MORD com cinco canais, é possível reduzir o tempo de detecção da ASSR em até 25,15% (MMSC) em relação às técnicas ORD (MSC). Assim, as técnicas de MORD se apresentam como uma ferramenta promissora, para detecção da ASSR, podendo ser utilizada para reduzir o tempo da obtenção dos limiares fisiológicos auditivos.
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Claesson, Göran, i Jonas Silverborn. "Multifunktionell CNC-maskin". Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-24576.
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Doody, Aaron L. (Aaron Lee). "CNC router modernization". Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40405.
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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.Includes bibliographical references.
A large-format CNC router has been stored in the Pappalardo Laboratory wood shop for several years in an unusable state. A need assessment determined that it would be cost effective to bring the router online for use in the mechanical engineering curriculum. The router was cleaned and inspected; it was determined that the router was in sound mechanical condition. The stepper motors, control system, and power supply were also functional, but the CNC interface software was outdated. To ensure the long term viability of the router as an effective teaching tool the most cost effective solution was to upgrade the motors, control system, and CNC interface software using a package provided by the original supplier, Techno-Isel Inc. The motors, control system, and software were installed, bringing the router to a fully functional state. Dust and ejected cuttings cause a safety hazard and cleanliness problem when operating the router. An enclosure was designed and installed in order to trap the majority of debris and reduce noise levels in the workspace, and a brief user guide has been compiled to ensure safe and effective usage.
by Aaron L. Doody.
S.B.
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Direne, Filho Hellinton. "MIG/MAG CCC". reponame:Repositório Institucional da UFSC, 2014. https://repositorio.ufsc.br/xmlui/handle/123456789/129663.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2014.Made available in DSpace on 2015-02-05T21:21:27Z (GMT). No. of bitstreams: 1 328837.pdf: 3599401 bytes, checksum: e5820867f869d6e549fde5af56c60012 (MD5) Previous issue date: 2014
Nas indústrias de petróleo e gás e de construção naval, a união entre componentes metálicos, caracterizada por grandes espessuras e soldagem multipasse, é, em sua maioria, executada de forma manual por soldadores previamente qualificados. Desta forma, a qualidade da solda está intimamente ligada à habilidade do soldador em adequar as condições do arco voltaico e da transferência metálica à junta que está sendo soldada. A obtenção de soldas com mínima formação de defeitos é principalmente agravada na soldagem do passe de raiz. Nesta situação é necessário um meticuloso controle da poça de fusão a fim de obter a penetração desejada, sem promover o escorrimento da poça, fenômeno conhecido como burn-through. Outro agravante está na preparação da junta a ser soldada, que nem sempre oferece dimensões repetitivas, apresentando irregularidades como gaps e ângulos variáveis, high-low, entre outras variações nas dimensões da junta. A influência destes defeitos sobre o passe de raiz é minimizada ao se garantir um maior controle da energia aportada à peça, proposição das tecnologias de controle da transferência por curto-circuito. Contudo, atualmente, a maioria do suprimento desta tecnologia advém de empresas de fontes de soldagem situadas no exterior. Além da escassez de informações sobre as várias soluções disponibilizadas por diferentes fabricantes, ainda, se está restrito a soluções para aplicações pré-definidas de fábrica. Dentro deste cenário é que se insere o presente trabalho. Ele aprimora uma tecnologia nacional, denominada de CCC (Curto-Circuito Controlado), com início de desenvolvimento em 1999. O objetivo é a criação de uma base sólida para o desenvolvimento e consolidação deste tipo de tecnologia em território nacional. Isto assegura melhor feedback com efetiva adaptação contínua. Por intermédio de implementações de software e hardware na fonte de soldagem, foi atingido um controle de alta dinâmica na forma de onda de corrente, na faixa dos microssegundos, além de melhorias nas rotinas de realimentação e controle das variáveis elétricas do processo. Cada fase da transferência metálica por curto-circuito foi avaliada em ensaios práticos de soldagem, resultando em maior precisão no controle da transferência das gotas e na dinâmica da poça de fusão. Foram desenvolvidos programas sinérgicos para os arames ER70S-6 de 1,0 e 1,2 mm de diâmetro, utilizando como gás de proteção uma composição de 75% de argônio e 25% de CO2. Procurando aumentar a facilidade de utilização do processo por parte do soldador, definiram-se apenas duas variáveis de regulagem para o processo CCC, a velocidade de alimentação de arame, entre 2 e 6 m/min, e o parâmetro ?a?, responsável por regulagens finas na potência. Os testes foram monitorados com auxílio de câmera de alta velocidade e sistemas de aquisições de dados. Com a utilização destas ferramentas de avaliação foi possível obter explicações concisas sobre a influência de cada fase da forma de onda de corrente na dinâmica da transferência metálica e da poça de fusão. Como resultado dos desenvolvimentos realizados neste trabalho, atualmente o processo de soldagem CCC apresenta alta regularidade na transferência metálica, baixa formação de respingos e adequado controle da poça de fusão, além de oferecer programas sinérgicos.
Abstract : In the oil and gas and shipbuilding industries, the welds between metal components are characterized by large thicknesses and multipass welding. This job is mostly performed manually by previously trained welders. Thus, the weld quality is closely linked to the ability of the welder to adjust the conditions of the arc and the metal transfer mode to the joint. Achieving healthy welds is particularly aggravated in the root pass welding. In this situation is necessary a meticulous control of weld pool in order to obtain the desired penetration without causing burn-through. Another problem is in the joint preparation, it does not always provide exact dimensions, presenting irregularities such as inconstant gaps and angles, high-low and other dimensions variations. The technologies that propose the controlled short circuit technology minimize the influence of these defects on the root pass with greater control of heat input. However, currently, most of the supply of this technology is in the international power sources, and the high-tech products stay in these regions and local industry just uses this technology. To create a solid foundation and develop this technology in Brazil, providing greater feedback with effective continuous adaptation, evolution and a potential success in the application of the process to the local industry, was planned out the main objective of this work, that is the improvement of the welding process CCC (Controlled short circuit), seeking to optimize its current waveform and the formulation of a synergistic program. Through software and hardware implementations and improvements in routines and feedback control of electrical process variables, the welding source is working in a high dynamic control of the current waveform, at a microsecond range. In experimental welding tests each phase of short circuit transfer was evaluated, resulting in greater precision in controlling the transfer of droplets and weld pool dynamics. Based on these results, were developed synergistic programs to mild steel consumables 1.0 to 1.2 mm in diameter, using protective gas as a composition of 75% argon and 25% CO 2. Seeking facilitate the use of the process by the welder, were set up just two variables for adjusting the CCC process, the wire feed speed, between 2 and 6 m / min, and the  a parameter responsible for fine adjustments in output power. The tests were monitored with high-speed camera and data acquisition systems. The use of these assessment tools enabled to obtain concise explanations of the influence of each phase of the current waveform and of metal transfer and weld pool dynamics. As a result this work, currently, the CCC welding process has high regularity of metal transfer, low spatter and good weld pool control, and provides synergistic programs.
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Krejčí, Jan. "CNC řízení frézky". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442459.
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This diploma thesis deals with rebuild of manual drill-mill machine BF20L into CNC mill machine, 3D model of that and eventual control using PLC. All axes are powered by stepper motors, with encoders, connected to control cards and industrial computer from company Beckhoff. For this control is made full switchboard, supplemented by electrical wiring diagram. Program control along with visualization is made in software TwinCAT 3. Drill-mill machine can be controlled manually or automatically by program.
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PERSSON, LINUS, i NATALIJA ZIVANOVIC. "Picasso : CNC plotter". Thesis, KTH, Mekatronik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-233002.
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In today’s society, CNC machines are used for various purposes. In this project, a CNC plotter is created to analyze how the performance of the plotter differs when using two different motors: a DC motor controlled by a potentiometer in the horizontal direction and a stepper motor in the vertical direction. A CNC plotter is built and used to do tests in order to answer the research question. The results show that a DC motor with a potentiometer is more precise than a stepper motor and the mean value of the relative errors in the vertical direction is always higher. The values differ with 1 percentage point to 3 percentage points. The difference in the performance of the two motors depend on several factors and one of the main factors is considered to be the fact that the stepper motor sometimes skips steps.I dagens samhälle används CNC-maskiner för olika ändamål. I detta projekt skapades en CNC-plotter för att analysera hur plotterns prestanda skiljer sig vid användning av två olika motorer: en DC motor kontrollerad av en potentiometer i horisontell riktning och en stegmotor i vertikal riktning. En CNC-plotter byggdes och användes för genomförande av tester för att kunna svara på forskningsfrågan. Resultaten visar att en DC motor med en potentiometer är mer exakt än en stegmotor och medelvärdet av de relativa felen i vertikala riktningen är alltid högre. Värdena skiljer sig från 1 procentenhet till 3 procentenheter. Skillnaden i prestanda för de två motorerna beror på flera faktorer och en av huvudfaktorerna anses vara det faktum att stegmotorn ibland hoppar över steg.
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Kovář, Pavel. "Model CNC frézky". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219700.
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The master's thesis deals with the basic parts and principles of CNC machines with a focus on a CNC milling machine. There are also comparisons of several CNC machines sold. Furthermore, the project deals with the description of the manipulator, which is situated in laboratory E-132 in area Kolejní 4, Brno. The work also includes a description of the device, which is located in the manipulator model. We can find there a description of the program generating G-code from the image that you create in the editor. The next section describes possible modifications of the manipulator for its reconstruction on a CNC milling machine. The last chapter deals with the description of program developed for controlling the manipulator as a CNC milling machine.
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Moštěk, Jiří. "Malý CNC stroj". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220350.
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This diploma thesis deals with the design and construction of a three-axis CNC machine primarily designed for PCB drilling and production of front panels for various electronic devices. All three axes are driven by stepper motors NEMA 23 which are connected to stepper motor drivers L6470. Processor STM32F407 is used to control the whole machine. The wiring is completed by a LCD display with touchscreen which is used to communicate with user. Data for drilling can be entering manually or via USB inerface. Part of this thesis is the selection of a suitable construction and components, assembling equipment, wiring design of electronic circuits and writing the code to control the machine. Finally, the parameters of the designed device have been measured.
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Vondrák, Jan. "Technologie CNC frézování". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228933.
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Common possibility analysis on milling machine, analysis possibility for programming in workshop oriented milling in system Sinumerik 840D ShopMill. Project alternative manufacturing technology including creation NC programme and technical economic valuation for part of Suspension globular screw in axis X.
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Drlík, Michal. "Souřadnicová CNC vrtačka". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229482.
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This thesis deals with designing and realization of a CNC drill. The body of the thesis is divided into three parts: Firstly, a design of a mechanical construction, secondly, an electronic scheme with its realization using industrial components and lastly, a design of a data export from an application for DPS EAGLE designing to G-KOD formate. The whole process should make drilling of plates with DPS or eventually the whole plate manufacturing more efficient and the quality and accurancy of a whole work should increase.
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Žák, Petr. "Konstrukce CNC frézky". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231996.
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The diploma thesis includes design of vertical CNC milling machine. It also includes research in the field of CNC milling machines on the world market, which is carried out to select the appropriate machine parameters and the structural configuration of the machine. Another part of the thesis deals with the selection of suitable components, design calculations, manufacturing drawings and the 3D model showing the final design solution of proposed machine.
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Pospíšil, Jiří. "Hobby CNC frézka". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232104.
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This diploma thesis serves as experimental proof of real world capabilities of computer designed hobby CNC milling machine with its parts printed on a 3D printer. First half is a brief introduction of CNC technologies to non-professional audience. Second part together with 3D model works as manual to build your own machine. Priority was to keep costs to minimum with decent accuracy still in mind.
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Kalina, Vladimír. "Malá CNC frézka". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-319489.
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The content of this diploma thesis is the design and construction of small vertical CNC milling machines. In the thesis are listed and machines that appear in today's production on the market. The components are designed for tools, for ball screw, linear guide. Parts are attached to the 3D models with vertical machine and drawings of the proposed machinery.
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Beránek, Jakub. "Bezpečnost CNC brusek". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382265.
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This thesis deals with safety of the CNC grinding machines. The first part of this thesis is focusing on legislative requirements of EU and Czech Republic, which concern with topic of this thesis. The second part of the thesis is focusing on the safety of the chosen grinding machine. The main parts of the machine which are important for safety are described and then the checklists for verification of the safety requirements are made.
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Hanulík, René. "Řízení CNC pískovačky". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413120.
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The diploma thesis clarifies the issue of creating inscriptions on stone slabs. It describes some types of sensors, actuators, their physical principles and possibilities of their use. The work mentions the limitations and specifics of sandblasting, design solutions and implementation of equipment for patternless sandblasting.The functionality of the device is demonstrated and verified on illustrative examples.
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Chaňo, Patrik. "Hobby CNC frézka". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416606.
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This diploma thesis serves as a design and implementation of a hobby CNC milling machine, for the modeling community. The work is conceived as an overview of the most common machining technologies. The following is an introduction to the construction of CNC milling machines and an introduction to the basic components used. Furthermore, the actual design proposals and a description of the implementation of two of them are presented. When designing the machine, emphasis was placed on the lowest possible price and availability of individual components.
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Persson, Linus, i Natalija Zivanovic. "Picasso : CNC plotter". Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230244.
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In today’s society, CNC machines are used for various purposes.In this project, a CNC plotter is created to analyzehow the performance of the plotter differs when using twodifferent motors: a DC motor controlled by a potentiometerin the horizontal direction and a stepper motor in thevertical direction. A CNC plotter is built and used to dotests in order to answer the research question. The resultsshow that a DC motor with a potentiometer is more precisethan a stepper motor and the mean value of the relative errorsin the vertical direction is always higher. The valuesdiffer with 1 percentage point to 3 percentage points. Thedifference in the performance of the two motors depend onseveral factors and one of the main factors is considered tobe the fact that the stepper motor sometimes skips steps.I dagens samhälle används CNC-maskiner för olika ändamål.I detta projekt skapades en CNC-plotter för att analyserahur plotterns prestanda skiljer sig vid användning avtvå olika motorer: en DC motor kontrollerad av en potentiometeri horisontell riktning och en stegmotor i vertikalriktning. En CNC-plotter byggdes och användes för genomförandeav tester för att kunna svara på forskningsfrågan.Resultaten visar att en DC motor med en potentiometer ärmer exakt än en stegmotor och medelvärdet av de relativafelen i vertikala riktningen är alltid högre. Värdena skiljersig från 1 procentenhet till 3 procentenheter. Skillnaden iprestanda för de två motorerna beror på flera faktorer ochen av huvudfaktorerna anses vara det faktum att stegmotornibland hoppar över steg.
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Mravec, Filip. "Agreagační chování polysacharidů ve vodných roztocích". Doctoral thesis, Vysoké učení technické v Brně. Fakulta chemická, 2008. http://www.nusl.cz/ntk/nusl-233278.
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Tato práce je zaměřena na agregační chování nativního a hydrofobně modifikovaného hyaluronanu, v různých molekulových hmotnostech a stupních substituce, ve vodném prostředí. Pro studium bylo vybráno šest fluorescenčních sond s různými vlastnostmi (Pyren; Nilská červeň; Perylen; Akridinová oranž; 6-(p-Toluidino)-2-nafthalenesulfonová kyselina; PRODAN). a výsledky získané pomocí těchto sond byly porovnány s jednoduchým anionaktivním tenzidem (Dodecylsíran sodný). U všech použité sond byly testovány jejich spektrální vlastnosti v závislosti na polaritě okolí a/nebo na koncentraci. Pro stanovení vlastností nepolárního jádra hyaluronového agregátu byly vybrány dvě sondy (Pyren, Nilská červeň). U domén byly sledovány polarita a viskozita vnitřního prostředí a jejich závislost na iontové síle a teplotě. Pro modifikované hyaluronany bylo stanoveno, že jejich kritická agregační koncentrace klesá s rostoucí molekulovou hmotností a stupněm substituce. Pro vlastní doménu platí, že její kompaktnost roste s rostoucí iontovou silou, ale klesá s rostoucí teplotou.
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Park, Kyoung-Joo Jenny. "Multi-Parameter Fluorescent Analysis and Quantitative Magnetophoresis Study as Two Different Technologies to Detect and Characterize Cells and Its Various Applications as Biomarkers". The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1512018964871473.
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Weylandt, Karsten-Henrich. "Towards a functional role for human CIC-3 and human CIC-4, two members of the CIC chloride channel family". Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341009.
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Soca, Guzmán Omar Paul. "Informe sobre Expediente acumulados N° 10-2004/CLC y 12/2004/CLC". Bachelor's thesis, Pontificia Universidad Católica del Perú, 2021. http://hdl.handle.net/20.500.12404/18941.
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La controversia en el expediente se origina a partir de la solicitud de arrendamiento de material tractivo y rodante de Ferrocarril Santuario Inca Machupicchu S.A.C. (Fersimsac), nuevo operador de servicios de transporte ferroviario. Fersimsac solicita a Ferrocarril Trasandino S.A. (Fetrans) el arrendamiento del material tractivo y rodante que este había recibido como parte de la concesión del Ferrocarril Sur Oriente. No obstante, Fetrans alegó que este material había sido arrendado en su totalidad a su empresa vinculada Perurail, quien prestaba los servicios de transporte ferroviario de acuerdo con lo previsto en su contrato de concesión.
Lo anterior fue analizado por la Comisión de Libre Competencia del Instituto Nacional de Defensa de la Competencia y de Protección de la Propiedad Intelectual (INDECOPI) a raíz de una denuncia de Organismo Supervisor de la Infraestructura de Transporte (OSITRAN) y Fersimsac en contra de Fetrans por presunto abuso de posición de dominio en la modalidad de negativa injustificada de trato y discriminación. Esta es la controversia que da origen al presente Expediente y cuyos aspectos controvertidos comprenden materias la interpretación del Contrato de Concesión, el análisis de competencia sobre el material tractivo y rodante, así como la participación de OSITRAN en el procedimiento administrativo sancionador. Al respecto, considero que INDECOPI no realizó una correcta interpretación del Contrato de Concesión, la misma que tuvo impacto en una incorrecta delimitación del mercado relevante. Finalmente, OSITRAN no fue incorporado en el procedimiento como correspondía, lo cual fue corregido por el Tribunal.
Finalmente, es importante notar que esta controversia se mantiene a nivel judicial. Esta controversia fue materia de pronunciamiento de la justicia constitucional, debido a una acción de amparo presentada por Perurail en la cual cuestionaba la admisión de la apelación de OSITRAN y que tuvo como consecuencia permitir a la Sala conocer la controversia. Si bien ya se contaba con un pronunciamiento de la Primera Sala Civil de la Corte Superior de Justicia de Lima que declaraba nula la admisión de la apelación y
firme la decisión de la Comisión, todo lo actuado fue declarado nulo por el Tribunal Constitucional en la sentencia del 18 de agosto de 2020 recaída en el Expediente No. 1484-2015-PA/TC. Así, el Tribunal Constitucional ha ordenado volver a la etapa de admisión de la demanda y la controversia sobre la admisión de OSITRAN en el procedimiento sigue pendiente
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Sers, Rickard, i Victor Wiberg. "Konstruktion av CNC-Router". Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-23611.
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AASS (Applied Autonomous Sensor Systems, Centrum för Tillämpade Autonoma Sensorsystem) arbetar med forskning inom autonoma system. Deras stora användningsområden är utveckling av automatiska system till fordonsindustrin samt system till äldrevården. AASS, har ett önskemål om en enklare modell av en CNC fräs för enklare fräsning till bland annat prototyptillverkning. Fokus ska ligga på kostnaden då precisionen inte är av största intresse. Uppdraget innebär att ta fram en konstruktion av en cnc- router med tre axlar med ett arbetsrum på 600x450x150mm. Maskinen ska kunna skära i mjuka material som trä, plaster men även mjukare aluminium. Resultatet är en tre axlig cnc- router som drivs av tre stycken stepmotorer som är kopplade till respektive kulskruv. Cnc routern har ett arbetsrum på cirka 600x450x150mm. Den klarar av skärkrafter på 150N utan att deformationer kommer ge stora felaktiga värden på bearbetad detalj. Konstruktionen består till huvuddel av aluminiumprofiler som finns tillängliga på Örebro universitet. De rörliga delarna består av Quadro Tables som tillverkas av Rollco. Konstruktionen ger en bra lösning till en relativt låg kostnad.AASS (Applied Autonomous Sensor Systems, Center for Applied Autonomous Sensor) works with research in autonomous systems. Their major application is the development of such systems for the automotive industry as well for the elderly. AASS, have a desire for a simple model of a CNC milling machine for milling smaller parts for prototyping. The focus should be on cost when precision is not of great interest. The mission is to develop a design of a CNC router with three axes with a workspace of 600x450x150mm. The machine should be able to cut soft materials such as wood, plastics as well as soft aluminum. The result is a three-axis CNC router which is driven by three stepper motors which are coupled to respective ball screw. The Cnc router has a workspace of about 600x450x150mm. It is capable of cutting with cutting forces up to 150N without deformations that will produce large errors in values of processed detail. The design consists of main body of aluminum profiles available at Örebro University. The movable parts consist of Quadro Tables manufactured by Rollco. The design provides a good solution to a relatively low cost.
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Mitáš, Daniel. "Ovládací rozhraní CNC frézky". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219821.
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This project deals with portal-type CNC milling machine design and construction. CNC milling machine should be able to machining light metals and alloys. This document contains description of mechanical components selection, machine frame design and building, design and construction of USB motion control unit and also contains control software description and user manual.
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Podloucký, Milan. "Konstrukce malého CNC soustruhu". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230138.
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The aim of this master thesis is construction a small CNC lathe ideal for small series of mostly minor workpieces or for learning needs. In the first part of the work is carried out general literature search containing turning technology, tools for turning and the allocation of turning machines. There is also retrieval of small lathes located not only in our market. Based on research are selected technical parameters of the machine and carried out construction calculations. Also included is a 3D model of the entire assembly and assembly drawings of machine nodes.
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Jagoš, Roman. "Konstrukce malé CNC frézky". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230234.
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This master´s thesis deals with design of small CNC milling machines and comparing CNC tabletop milling machines in the world market. It is also done design of small CNC milling machine through the use of contemporary and modern trends, used in design of machine tools.
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Sobotka, Ondřej. "Návrh CNC řídicího systému". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231279.
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The thesis describesthedesign of a controlsystemfor CNC applicationswhich do not requiresynchronizedmotionofseveral axis atonce. Thegoaliscompatibilitywith G-codethatallowsyou to controlthedevicewith a Cartesiancoordinatesystem. Withthe use ofthenormal PC to run thesystem and communicate via serial line.
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Cherepanov, Maksym. "Ruční programovaní CNC strojů". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-317201.
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Kučera, David. "CNC obrábění rotační součásti". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417437.
Pełny tekst źródłaStreszczenie:
The diploma thesis concerns CNC machining of rotary part. The first part briefly introduces options of multipurpose CNC machines and robotized workplaces. The main body of the thesis analyses two production departments; one of them operated by a robotic manipulator. The conclusion summarises the accomplished results of the thesis.
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Buš, Martin. "Návrh hobby CNC frézky". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417754.
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This master thesis is focused on design of CNC hobby milling machine.In the first part of master thesis there are brief information about construction of CNC milling machines with varios types of milling machines available on market. After that, is made a selection of suitable machine componets for selected parameters. Futhermore, the masters thesis include a solutions of the component on all axes CNC milling machines.
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Guedes, Vagner. "CARACTERIZAÇÃO FÍSICO-QUÍMICA DO LODO GERADO NUM SISTEMA ANAERÓBICO DE TRATAMENTO DE EFLUENTES DE ORIGEM RESIDENCIAL". UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2013. http://tede2.uepg.br/jspui/handle/prefix/2112.
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Made available in DSpace on 2017-07-24T19:38:09Z (GMT). No. of bitstreams: 1
Vagner Guedes.pdf: 1132706 bytes, checksum: b60ded5d1361a2188f123ba34a1a0614 (MD5)
Previous issue date: 2013-06-19To avoid pollution and damage to the environment, Effluents need of treatment. The appropriate target these effluents should be the (STP), which are responsible for the removal of contaminants. The wastewater treatment plants seek to apply the same natural principles, using the same organisms that proliferate in soil and water, improving processes and minimizing costs to get the highest possible efficiency and can use aerobic or anaerobic processes. There is worldwide increasing production of waste, among which stands out the sewage sludge, generated by the sheer volume and complexity of management, which typically involves several processing steps. Chemical study was made of the sludge from the sludge blanket reactor (UASB) during the period of one year, using as the main techniques Fluorescence X-ray Absorption Spectroscopy Atomic Emission Spectroscopy for Flame, UV-vis spectroscopy and metal extraction by Tessier method, the parameters analyzed were pH, cation exchange capacity, sum of bases, exchangeable acidity, potassium, phosphorus mineral, organic phosphorus, nitrogen and metals: barium, cadmium, lead, copper, chromium, iron , nickel, manganese, silver, and zinc. x
Os efluentes necessitam de tratamento, evitando a poluição e os danos causados ao ambiente. O destino adequado destes efluentes deve ser a (ETE), que são responsáveis pela remoção dos contaminantes. As estações de tratamento de efluentes procuram aplicar os mesmos princípios naturais, utilizando os mesmos organismos que proliferam no solo e na água, melhorando os processos e minimizando custos para obter a maior eficiência possível, podendo utilizar os processos aeróbios ou anaeróbios. Verifica-se em todo mundo a produção crescente de resíduos urbanos, entre os quais se destaca o lodo de esgoto, pelo grande volume gerado e pela complexidade de gerenciamento, que normalmente envolve diversas etapas de processamento. Fez-se estudo químico do lodo proveniente do reator de manto de lodo, (UASB) durante o período de um ano, utilizando como técnicas principais a Fluorescência de raios X, Espectroscopia de Absorção Atômica, Espectroscopia Emissão pela Chama, Espectroscopia UV-vis e Extração de metais pelo Método de Tessier, os atributos analisados foram pH, capacidade de troca catiônica, soma total das bases, acidez trocável, potássio, fósforo mineral, fósforo orgânico, nitrogênio e metais: bário, cadmio, chumbo, cobre, cromo, ferro, níquel, manganês, prata e zinco.
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Wallberg, Elin, i Amanda Wallberg. "En kväll på Karlstad CCC". Thesis, Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-14442.
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Alla drömmer om att komma bort från vardagen även om det bara är för några timmar. När en person betalar för en upplevelse vill denne ha tid att njuta av flera minnesvärda händelser som erbjuds av ett företag, och som berör personen på ett personligt sätt. Karlstad CCC är en tillflyktsplats där gäster kan få energi och drömma sig bort för en kväll, genom bland annat en minnesvärd föreställning. Syftet med denna studie är att beskriva gästens upplevelse under en föreställning på Karlstad CCC. Denna upplevelse ska analyseras genom observationer, intervjuer, enkätundersökningar och experiment. Vidare syftar uppsatsen till att baserat på dessa resultat kunna konstruera en förbättrad tjänsteprocess. Teorin som används behandlar områden som tjänst, tjänsteprocess, upplevelse och reciprocitet. Genom informationen som samlades in utformades ett experiment där en del av tjänsteprocessen ändrades. Under detta experiment delades även en gåva ut för att undersöka om reciprocitetsregeln påverkade gästerna till merköp. Resultaten av gästerna upplevelse visade på varierande åsikter. Majoriteten av gästerna var tillfredsställda med den totala upplevelsen. De ändringar som gjordes av tjänsteprocessen vid experimentet gav ingen större genomslagskraft. Reciprocitetsregels påverkan gav en svag inverkan på gästerna.
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Cleary, Matthew John. "CMC Modelling of Enclosure Fires". University of Sydney. Aerospace, Mechanical and Mechatronic Engineering, 2005. http://hdl.handle.net/2123/696.
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This thesis describes the implementation of the conditional moment closure (CMC) combustion model in a numerical scheme and its application to the modelling of enclosure fires. Prediction of carbon monoxide (CO) in the upper smoke layer of enclosure fires is of primary interest because it is a common cause of death. The CO concentration cannot be easily predicted by empirical means, so a method is needed which models the chemistry of a quenched, turbulent fire plume and subsequent mixing within an enclosed space. CMC is a turbulent combustion model which has been researched for over a decade. It has provided predictions of major and minor species in jet diffusion flames. The extension to enclosure fires is a new application for which the flow is complex and temperatures are well below adiabatic conditions. Advances are made in the numerical implementation of CMC. The governing combustion equations are cast in a conserved, finite volume formulation for which boundary conditions are uniquely defined. Computational efficiency is improved through two criteria which allow the reduction in the size of the computational domain without any loss of accuracy. Modelling results are compared to experimental data for natural gas fires burning under a hood. Comparison is made in the recirculating, post-flame region of the flow where temperatures are low and reactions are quenched. Due to the spatial flux terms contained in the governing equations, CMC is able to model the situation where chemical species are produced in the high temperature fire-plume and then transported to non-reacting regions. Predictions of CO and other species are in reasonable agreement with the experimental data over a range of lean and rich hood-fire conditions. Sensitivity of results to chemistry, temperature and modelling closures is inves- tigated. Species predictions are shown to be quite different for the two detailed chemical mechanisms used. Temperature conditions within the hood effect the for- mation of species in the plume prior to quenching and subsequently species predic- tions in the post-flame region are also effected. Clipped Gaussian and ß-function probability density functions (PDFs) are used for the stochastic mixture fraction. Species predictions in the plume are sensitive to the form of the PDF but in the post-flame region, where the ß-function approaches a Gaussian form, predictions are relatively insensitive. Two models are used for the conditional scalar dissipation: a uniform model, where the conditional quantity is set equal to the unconditional scalar dissipation across all mixture fraction space; and a model which is consistent with the PDF transport equation. In the plume, predictions of minor species are sensitive to the modelling used, but in the recirculating, post-flame region species are not significantly effected.
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Rautava, J. P. (Jori-Pekka). "CNC-jyrsimen tärinän mittaus värinäsensorilla". Bachelor's thesis, University of Oulu, 2017. http://urn.fi/URN:NBN:fi:oulu-201710072962.
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Tässä työssä tehdään ensin kirjallisuuskatsaus LTE-tekniikan perusteisiin sekä 5G-tekniikan käyttöön ja mahdollisuuksiin IoT-sovellutuksissa. Teoriaosuudessa tarkastellaan mistä osista LTE-tekniikka koostuu ja mitkä ovat keskeisiä asioita LTE-tekniikan mahdollistamassa suuremmassa datan siirtonopeudessa verrattuna 3G tekniikkaan. 5G-tekniikkaan liittyen esitellään 5G:n perusideat ja miksi se mahdollistaa entistä suuremmat datan siirtonopeudet ja pienemmät latenssit kuin 4G-tekniikka. Tämän työn lopussa on esitelty tekemäni IoT-sovellus, jossa CNC-jyrsimestä voidaan mitata tärinäarvoja käyttäen ADIS16227 värinäsensoria, joka on liitetty Raspberry Pi -tietokoneeseen. Lopuksi pohditaan tämän sovellutuksen rajoitteita ja käyttökohteitaIn the beginning of this thesis I make a literature overview of the basics of LTE technology and the possibilities of 5G technology and IoT applications. In the theory part I review what makes LTE technology and what are the key principles that allow greater data rates compared to 3G. The very basics of 5G technology is introduced. I also review why 5G technology allows greater data rates and lower latency compared to 4G technology. In the end of this thesis I present IoT application I have made that allows to examine vibration from CNC milling machine. For measuring the vibration ADIS16227 vibration sensor is connected with Raspberry Pi computer. Finally, I consider what can be done with this IoT application and what constraints it may have
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Pérez, Cosavalente Carlos Enrique. "Consulting report - CAC Oro Verde". Master's thesis, Pontificia Universidad Católica del Perú, 2017. http://tesis.pucp.edu.pe/repositorio/handle/123456789/9412.
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CAC Oro Verde is a Peruvian coffee and cocoa cooperative located in San Martín,
Peru which is seeking to explore a niche market of cocoa beans located in Canada. Thus, the
main objective of this consulting report is to identify and develop a plausible business
opportunity within this market. For that purpose, a marketing strategy, a marketing mix and a
financial assessment were developed in order to have a clear implementation plan for this
business opportunity. Based on the analysis, the main opportunity identified is the fine
flavour Fair Trade and Organic certified cocoa beans market. Moreover, considering the
possibilities of the cooperative and the segments that were analyzed, the bean-to-bar segment
was identified as the target market. Moreover, direct exporting and developing a partnership
are the two most suitable entry methods for the bean-to-bar segment and British Columbia
was identified as the best location to penetrate. The marketing mix suggested was deployed in
an implementation plan with a timeline of 30 weeks and a cost estimated in 109,000 USD.
Due to the fact that the recommended product to enter the market is considered a
premium and high-quality product and, considering other benchmarks of the market, then the
prices proposed are from 5,000 USD to 6,500 USD. Furthermore, the project was financially
assessed considering 18 different scenarios varying prices and percentages of market share.
From that, it was determined that the breakeven points in terms of market share are from
approximately 4.9% for the 6,500 USD price to 6.1% for the 5,000 USD price. These
percentages of market shares represent between 8.9 TNE to 11 TNE per year in order to
break even in such a niche market. For the best-case scenario, CAC Oro Verde has the
potential to make a net profit of approximately 530,000 PEN in year one if the cooperative is
able to attain 20% market share which in five years would represent a net present value of
approximately 3’400,000 PEN which indicates a 192.4% internal rate of return on the initial
investment showing that the project is feasible and viableCAC Oro Verde es una cooperativa peruana ubicada en la región de San Martín, Perú con mucho interés en explorar el mercado nicho canadiense de cacao. Así, el principal objetivo del proyecto de consultoría es identificar y desarrollar una oportunidad de negocio viable en este mercado. Para ello, se evaluó y planteó una estrategia de marketing, un marketing mix y se realizó una evaluación financiera con el fin de determinar una solución viable que pueda ser implementada. A través de este estudio, se identificó que la mejor oportunidad de negocio y mercado nicho para la cooperativa se encontraba en el mercado de cacaos de fino aroma que cuentan con certificaciones de comercio justo y orgánico. Asimismo, tomando en cuenta las necesidades del mercado y las posibilidades de producción de la cooperativa, se eligió al segmento bean-to-bar como el mercado a penetrar. Del mismo modo, se identificó que exportar directamente hacia socios comerciales es el mejor método de entrada hacia la provincia elegida, British Columbia. Por otro lado, el marketing mix propuesto se desplegó en un plan de implementación cuyo costo y duración estimados son 109,000 USD y 30 semanas, respectivamente. Debido a que el producto ofrecido es considerado de alta calidad y, tomando en cuenta otros puntos de referencia en cuanto al precio del producto, se determinó que el rango más aproximado de precio sugerido es desde 5,000 USD a 6,500 USD. A partir de ello, se realizó la evaluación financiera a 18 diferentes escenarios variando el precio y la cuota de mercado posible de alcanzar. De ese análisis, se determinó que el punto de equilibrio se alcanza cuando la cuota de mercado es entre 4.9% y 6.1% de la demanda, es decir, desde 8.9 TNE a 11 TNE vendidas por año. En el mejor escenario, CAC Oro Verde es capaz de lograr utilidades netas por 530,000 PEN en el primer año si es que se logra alcanzar una cuota de mercado de 20% lo que en cinco años significaría un valor presente neto de 3’400,000 PEN y una tasa interna de retorno de 192.4% demostrando que el proyecto es viable y factible
Tesis
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Matoušek, Vojtěch. "Návrh a řízení CNC stroje". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218945.
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My task was to build a smaller structure triaxial CNC milling. I designed electronics for motion control. The main part is the implementation of the control unit, which will provide control of the machine. The work includes the complete design, PCB design and program description for the uP ARM. The unit can work independently as well as hardware interpolator connected to the PC.
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Vlček, Michal. "Integrace měření do CNC obrábění". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229070.
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This master thesis deals with integration of measuring into process of machining. The object of this work is making summary of using measuring probes, description of the probes working principles and their division by construction and usage. The practical part of this work deals with creation of measuring cycles in softwaru Productivity+ and their implementation to machining cycles in MCV 1210. In the last part, two testing workpieces were created and the economic evaluation of introduction of the probes into machining process was performed.
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Michele, Jiří. "Konstrukce malé vertikální CNC frézky". Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230492.
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This diploma thesis designs a small vertical CNC milling machine. The thesis includes selection of suitable structural design of the machine based on market analysis and requirements. The listed components, constructional calculations and 3D model are chosen in order to minimize the costs.