Neste trabalho foi estudado o desenvolvimento de um pigmento vegetal preto que possui características semelhantes aos já existentes no mercado de transformação de termoplásticos. Atualmente o pigmento preto mais utilizado nas indústrias de transformação de termoplásticos é o negro de fumo, cujo processo de obtenção gera muitos resíduos tóxicos e quando liberados na atmosfera aumenta a poluição do ar. O pigmento em estudo possui a estrutura química formada por 97% de carbono proveniente da moagem e micronização do carvão vegetal. Os objetivos do presente trabalho foram estudar a obtenção do pigmento preto de origem do carvão vegetal, estudar o desempenho deste pigmento comparando-o com o negro de fumo usado atualmente nas indústrias, incorporação do pigmento obtido em polietileno de baixa densidade (PEBD), caracterização do produto obtido e estudo da influência da radiação ionizante no PEBD mais pigmento preto. Como matérias prima foram utilizadas o carvão vegetal (pigmento preto) e o polietileno de baixa densidade (PEBD). Posteriormente, o pigmento preto obtido foi incorporado ao PEBD pelo processo de injeção e caracterizado em relação a sua estabilidade durante processamento, dispersão, migração e cobertura pigmentar. Também foram realizados testes mecânicos com as amostras não irradiadas e as irradiadas em doses de radiação de 100, 200, 300 e 400kGy. O pigmento foi obtido por meio da moagem do carvão vegetal, sua obtenção é menos nociva ao meio ambiente, visto que o mesmo não é um subproduto do petróleo como o negro de fumo e sim um derivado da madeira que é um produto renovável. É importante salientar que é possível canalizar o descarte de maneira inadequada da madeira para uma linha produtiva, produzindo assim o carvão o qual é matéria prima para este pigmento e assim ser inserido em cadeia produtiva. Apesar da aplicação em matriz polimérica ter sido maior que a do negro de fumo 1,4%, o mesmo é de fácil obtenção, proveniente de uma fonte renovável, sendo de baixo custo além de apresentar propriedades colorimétricas compatíveis e próximas às do negro de fumo. Em relação à incorporação do pigmento na matriz polimérica durante o processo de injeção, o mesmo foi de fácil incorporação distribuindo-se de maneira homogênea. Em relação às amostras irradiadas pode-se dizer que houve ganhos na maioria das propriedades estudadas. Dependendo do tipo de artefato a ser fabricado e de quais propriedades são mais importantes, pode-se irradiá-lo em dose mais adequada. / In this work was studied the development of charcoal black pigment which has characteristics similar with those already used in the market of thermoplastics processing. Nowadays, the black pigment most used is the carbon black which generates many toxic residues that when released into the atmosphere increases air pollution. This pigment has 756t aims of this research were to study the obtainment of charcoal black pigment; the performance of this pigment by comparing it with the carbon black; the incorporating the pigment obtained in low density polyethylene (LDPE) and the characterization of the product and the influence of the ionizing radiation on. At first the black pigment obtained was incorporated into LDPE and characterized in relation at their stability during injection, dispersion, migration and color coverage. Mechanical tests were also realized with non irradiated and irradiated samples at irradiation doses of 100, 200, 300 and 400kGy. It was easy the incorporation of the pigment into the polymeric matrix during the injection process. The obtainment charcoal black pigment is less harmful to the environment, since it is not an oil product as carbon black but by incomplete combustion of wood. Thus it will be produced charcoal for the production of the pigment to be inserted in the industrial chain. Despite using 1.4% of this pigment, it is easy to obtain, from a renewable source, and low cost besides presenting colorimetric properties compatible with the carbon black. Regarding the irradiated samples can be said that there was an increase in the majority of properties studied. Depending on the intended use of the polymer can irradiate it in the most appropriate dose which had improvement in their properties.

Neste trabalho foi estudado o desenvolvimento de um pigmento vegetal preto que possui características semelhantes aos já existentes no mercado de transformação de termoplásticos. Atualmente o pigmento preto mais utilizado nas indústrias de transformação de termoplásticos é o negro de fumo, cujo processo de obtenção gera muitos resíduos tóxicos e quando liberados na atmosfera aumenta a poluição do ar. O pigmento em estudo possui a estrutura química formada por 97% de carbono proveniente da moagem e micronização do carvão vegetal. Os objetivos do presente trabalho foram estudar a obtenção do pigmento preto de origem do carvão vegetal, estudar o desempenho deste pigmento comparando-o com o negro de fumo usado atualmente nas indústrias, incorporação do pigmento obtido em polietileno de baixa densidade (PEBD), caracterização do produto obtido e estudo da influência da radiação ionizante no PEBD mais pigmento preto. Como matérias prima foram utilizadas o carvão vegetal (pigmento preto) e o polietileno de baixa densidade (PEBD). Posteriormente, o pigmento preto obtido foi incorporado ao PEBD pelo processo de injeção e caracterizado em relação a sua estabilidade durante processamento, dispersão, migração e cobertura pigmentar. Também foram realizados testes mecânicos com as amostras não irradiadas e as irradiadas em doses de radiação de 100, 200, 300 e 400kGy. O pigmento foi obtido por meio da moagem do carvão vegetal, sua obtenção é menos nociva ao meio ambiente, visto que o mesmo não é um subproduto do petróleo como o negro de fumo e sim um derivado da madeira que é um produto renovável. É importante salientar que é possível canalizar o descarte de maneira inadequada da madeira para uma linha produtiva, produzindo assim o carvão o qual é matéria prima para este pigmento e assim ser inserido em cadeia produtiva. Apesar da aplicação em matriz polimérica ter sido maior que a do negro de fumo 1,4%, o mesmo é de fácil obtenção, proveniente de uma fonte renovável, sendo de baixo custo além de apresentar propriedades colorimétricas compatíveis e próximas às do negro de fumo. Em relação à incorporação do pigmento na matriz polimérica durante o processo de injeção, o mesmo foi de fácil incorporação distribuindo-se de maneira homogênea. Em relação às amostras irradiadas pode-se dizer que houve ganhos na maioria das propriedades estudadas. Dependendo do tipo de artefato a ser fabricado e de quais propriedades são mais importantes, pode-se irradiá-lo em dose mais adequada. / In this work was studied the development of charcoal black pigment which has characteristics similar with those already used in the market of thermoplastics processing. Nowadays, the black pigment most used is the carbon black which generates many toxic residues that when released into the atmosphere increases air pollution. This pigment has 756t aims of this research were to study the obtainment of charcoal black pigment; the performance of this pigment by comparing it with the carbon black; the incorporating the pigment obtained in low density polyethylene (LDPE) and the characterization of the product and the influence of the ionizing radiation on. At first the black pigment obtained was incorporated into LDPE and characterized in relation at their stability during injection, dispersion, migration and color coverage. Mechanical tests were also realized with non irradiated and irradiated samples at irradiation doses of 100, 200, 300 and 400kGy. It was easy the incorporation of the pigment into the polymeric matrix during the injection process. The obtainment charcoal black pigment is less harmful to the environment, since it is not an oil product as carbon black but by incomplete combustion of wood. Thus it will be produced charcoal for the production of the pigment to be inserted in the industrial chain. Despite using 1.4% of this pigment, it is easy to obtain, from a renewable source, and low cost besides presenting colorimetric properties compatible with the carbon black. Regarding the irradiated samples can be said that there was an increase in the majority of properties studied. Depending on the intended use of the polymer can irradiate it in the most appropriate dose which had improvement in their properties.

This research study was designed to help illuminate if there is a relationship between the quality of career and technical education programs from centralized and decentralized-controlled systems in relation to the level of authority exerted by state governing/coordinating boards over the community college system. This study included data from the 50 states that are part of the United States of America. This study used a quasi-experimental, nonequivalent design. This study did not include randomly selected groups and was a nonequivalent control group design. The independent variables included: centralized or decentralized governance, median household income, the percent of community colleges that are rural, unemployment rate, and amount spent per full time enrolled community college student. The independent variable data that was collected came from the Bureau of Labor and Statistics, the United States Census Bureau, and the Integrated Post-Secondary Education Data System (IPEDS). The dependent variable was the mean score of Carl Perkins Act reporting data that each state is required to report to federal authorities every year. The states were divided in two separate groups, centralized or decentralized form of governance. A regression analysis was performed in order to analyze if a relationship exists between the independent and dependent variables for each group. The research indicated that the form of governance does impact Carl Perkins Act reporting scores in a decentralized form of governance in relation to median income, but overall the model is not a good predictor of overall scores. A significant difference was found in states that have a decentralized form of governance and median household income in relation to Carl Perkins Act reporting data. However, the model, as a whole, did not produce significant results in relation to the independent and dependent variables. Considerations for future research are discussed.

The goal of this thesis is to evaluate travelers' experience with Highway Advisory Radio (HAR) and Citizens' Band Radio Advisory System (CBRAS) technologies on both Florida Interstate Highway system (FIH) and the Florida Turnpike Enterprise (FTE) toll roads. To achieve this goal, two different survey tools were used. The first tool is a random digit dialing phone survey known as CATI (Computer-Assisted Telephone Interviewing). The second tool is a field survey that intercepts travelers at the Florida Turnpike Enterprise (FTE) service plazas and the Florida Interstate Highway (FIH) rest areas. HAR and CBRAS are traditional components of the Advanced Traveler Information Systems (ATIS). This thesis pays special attention to the effectiveness of HAR and CBRAS in improving travelers' experience. Feedback to analyze these two technologies was collected via a telephonic survey and a field survey. Two different field surveys (one for HAR and one for CBRAS) were designed and implemented to obtain feedback on these technologies. The field survey for CBRAS is unique and has never been done before for this purpose. A sample size of 1000 HAR surveys was collected through the CATI phone survey. Field surveys were collected at five locations across the state, including central, southeast, and southwest regions of Florida. The HAR field survey sample size was 1610 and the CBRAS field survey sample size was 613. All field surveys were conducted by UCF students at each of the five locations, over a 13-week data collection period. The HAR messages were designed to alert drivers of any adverse roadway traffic or weather conditions. The CBRAS is limited to truck drivers with the closed system radio pre-installed in their vehicles. However, truck drivers were also asked some questions on HAR if they do not use CBRAS. Basic statistical analysis was used to determine a number of performance indicators which include system's use and awareness, usability of provided information, route diversion, and travelers' demographics. In addition, the two HAR phone and field samples were combined together and examined using a decision tree model. Target questions were selected from the survey to build the tree network. The tree model aimed at identifying trends between categorical differences of travelers with respect to specific questions. Understanding travelers' satisfaction with HAR is critical to knowing its benefits. The ending results indicated that both basic statistical analysis and the decision tree model are in agreement. A comparison between HAR phone and field surveys indicates the following. Travelers interviewed for the HAR field survey were more aware of the HAR than travelers surveyed by phone. A small portion of the surveyed samples used HAR (22% and this was consistent between the phone and the field surveys). Also, 80% or more were satisfied with HAR for both phone and field samples and the majority (85% or more) supported its continuation as an indication of willingness to use it in the future, especially in emergency conditions. In terms of the types of messages they want to hear from HAR, traffic congestion was the most common. Dynamic Message Signs (DMS) were the most preferred source of travel information and were the alternative for HAR, if HAR gets terminated. This was followed by smartphone applications which received twice as much support from field surveyed travelers (28%) when compared to phone surveyed travelers (15%). The CATI Phone Survey was biased towards elderly people (60% of the sample) and mainly females (58%) that use the FTE roadway system. Users satisfied with the system are those who only use these roadways once per week or less. The survey ultimately shows that travelers rely on modern modes of obtaining traffic information than traditional ones, such as HAR. DMS, and smart phone applications are leading communication tools among all type of travelers. The HAR field survey was less biased with respect to age and gender distribution (56% were under 50 and 62% were males). Both surveys indicate that the sample is well educated (about 60% have an associate degree or higher). CBRAS serves a small segment of commercial truck drivers (only 12% out of 613 used CBRAS). However, this small segment used it heavily (84% used it sometimes, often, or always). And 92% of CBRAS users were satisfied or strongly satisfied with it. CBRAS was used mostly for route divergence, with 72% of the drivers relying on it for this purpose. Truck drivers who never used CBRAS (88% of the sample) were asked questions about HAR. Only 27% of them used HAR and 57% of these used it sometimes, often, or always with 72% of the truck users being satisfied with HAR compared to the 92% satisfied with CBRAS. The most common complaint about HAR by truck drivers was that it is not easy to access or understand. Based on responses of truck drivers for both HAR and CBRAS field surveys above, it seems that GPS navigation was the most preferred source of travel information (28%). In addition to the basic statistics, a decision tree model, using SAS Enterprise Miner was performed. The statistical analysis results indicated satisfaction of travelers. The decision tree model was used to predict and profile responses to all answered questions that each survey shared. Training data was included in the model and the model was able to leverage the questions. Results of the decision tree model predicted high user satisfaction rates. Analyses of the three implemented surveys show that HAR and CBRAS technologies are not used by a large proportion of travelers, but their users are typically satisfied with these technologies. A small portion of the surveyed sample of truck drivers uses CBRAS but they use it heavily and were very satisfied with it. The travelers' satisfaction level with HAR was high. The HAR and CBRAS systems are in the middle of a heated competition lead by digital communication, it may be a sign of the time to create HAR/CBRAS smart phone applications for the longevity of these traditional technologies.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-05-03T22:56:48Z No. of bitstreams: 1 FelipeDenisMendoncaDeOliveira_TESE.pdf: 5762435 bytes, checksum: f710387481b7dc41c1ff916b28138dbf (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-05-05T19:51:58Z (GMT) No. of bitstreams: 1 FelipeDenisMendoncaDeOliveira_TESE.pdf: 5762435 bytes, checksum: f710387481b7dc41c1ff916b28138dbf (MD5) / Made available in DSpace on 2016-05-05T19:51:58Z (GMT). No. of bitstreams: 1 FelipeDenisMendoncaDeOliveira_TESE.pdf: 5762435 bytes, checksum: f710387481b7dc41c1ff916b28138dbf (MD5) Previous issue date: 2015-08-03 / Uma Rede de Sensores sem Fio (RSSF) consiste de dispositivos distribu?dos em uma ?rea com a finalidade de monitorar vari?veis f?sicas, tais como temperatura, press?o, vibra??o, movimento e condi??es ambientais em locais onde as redes cabeadas seriam complicadas ou impratic?veis de serem implementadas, por exemplo, aplica??es industriais de dif?cil acesso, monitoramento e controle de po?os petrol?feros terrestres ou mar?timos, no acompanhamento de extensas ?reas de cultivo agr?rio e animal, entre outros. Para ser vi?vel, uma RSSF deve possuir requisitos importantes, tais como baixo custo, baixa lat?ncia e, principalmente, baixo consumo de energia. Entretanto, para garantir tais requisitos, essas redes sofrem limita??o de recursos, al?m de, eventualmente, serem utilizadas em ambientes hostis, levando a altas taxas de falhas, tais como roteamentos segmentados, perda de mensagens, reduzindo a efici?ncia podendo chegar, inclusive, a comprometer a rede como um todo. Este trabalho tem por objetivo apresentar o FTE-LEACH, um protocolo de roteamento energeticamente eficiente e tolerante a falhas, mantendo a efici?ncia na comunica??o e na dissemina??o de dados. Tal protocolo foi desenvolvido baseado no padr?o IEEE 802.15.4 e voltado ?s redes industriais com recursos energ?ticos limitados. / A Wireless Sensor Network (WSN) consists of distributed devices in an area in order to monitor physical variables such as temperature, pressure, vibration, motion and environmental conditions in places where wired networks would be difficult or impractical to implement, for example, industrial applications of difficult access, monitoring and control of oil wells on-shore or off-shore, monitoring of large areas of agricultural and animal farming, among others. To be viable, a WSN should have important requirements such as low cost, low latency, and especially low power consumption. However, to ensure these requirements, these networks suffer from limited resources, and eventually being used in hostile environments, leading to high failure rates, such as segmented routing, mes sage loss, reducing efficiency, and compromising the entire network, inclusive. This work aims to present the FTE-LEACH, a fault tolerant and energy efficient routing protocol that maintains efficiency in communication and dissemination of data.This protocol was developed based on the IEEE 802.15.4 standard and suitable for industrial networks with limited energy resources

ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada / This paper describes new concepts of test mean and processes to perform flight test for all Airbus aircraft family. The FTI (Flight Test Installation) designed for A320, A340, A380 and A350 programs include acquisition system, recorder, data processing, visualisation, Flight Test Engineer Station and optional functionalities (video acquisition, DGPS, telemetry ...) In the past, these test means were specific for each test aircraft. Due to the large number of Aircraft development in parallel Airbus has designed and standardized new tests means for development and production aircraft. The first goal is to generate significant benefits regarding time and costs savings by simplifying installation and reusing all the test installations components. This paper shows the opportunities and challenges of these new concepts.

This item contains the agenda, minutes, and attachments for the Faculty Senate meeting on this date. There may be additional materials from the meeting available at the Faculty Center.

This item contains the agenda, minutes, and attachments for the Faculty Senate meeting on this date. There may be additional materials from the meeting available at the Faculty Center.