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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Comportamento de Podium denticulatum F. Smith, 1856 (hymenoptera, Sphecidae) em ninhos-armadilha / Behavior of Podium denticulatum F. Smith, 1856 (Hymenoptera, Sphecidae) in trap-nests

Ribeiro, Favi 24 March 2006 (has links)
Podium denticulatum é uma espécie de vespa solitária que pertence ao gênero Podium, família Sphecidae, sendo encontrada desde o México o Brasil. As fêmeas desse gênero são caçadoras, capturam e aprovisionam o ninho com baratas paralisadas. As espécies de Podium nidificam em cavidades preexistentes, como ninhos abandonados de outras espécies de vespas, cavidades em troncos e em ninhos-armadilha (NA). O principal objetivo do presente trabalho foi estudar os aspectos comportamentais das atividades realizadas pelas fêmeas de P.denticulatum no processo de nidificação, e a obtenção de dados do tempo de desenvolvimento, número de gerações por ano e novas informações sobre a biologia e fenologia da espécie, permitindo uma análise comparativa com aquelas reportadas por outros autores. O estudo foi realizado no Campus da USP de Ribeirão Preto, SP, onde o clima é tropical quente e úmido. Foram utilizados NA que consistiram de gomos de bambus, fechados em uma das extremidades pelo nó, com comprimentos e diâmetros variados. Esses NA foram inspecionados, frequentemente, de setembro de 2003 a setembro de 2005, para constatação de fêmeas trabalhando e coleta de dados. Com isso, pôde-se constatar que as fêmeas exibem comportamento de inspeção e escolha dos NA antes de começar a captura de presas, as quais são representantes da família Blattellidae. Os ovos são colocados entre o primeiro par de pernas da presa e o desenvolvimento total, ou seja, do ovo até o adulto, foi maior nas fêmeas que nos machos. Uma característica importante observada neste estudo é que as fêmeas fecham a célula ao final do dia caso não tenham completado o aprovisionamento, retornado no dia seguinte. Esse comportamento pode ser interpretado como uma forma de proteção ao alimento larval ou ovo. O material utilizado para fechar as células e o ninho consiste de barro coletado no campo. A parede de fechamento pode ser revestida com uma resina de origem desconhecida. A fêmea pode terminar o aprovisionamento de uma célula em até cinco dias; na conclusão do ninho, ela pode demorar até nove dias, e esse tempo está relacionado à fatores externos. Foram observadas 6 gerações e um período de diapausa e a razão sexual não diferiu significantemente da proporção de 1:1. As fêmeas foram produzidas preferencialmente nas primeiras células de cria, que são dispostas em série linear. Cada ninho continha de 1 a 6 células de cria e, em 43,8% dos ninhos a fêmea construiu uma célula vestibular. Foram encontradas ainda ninhos com célula intercalar e célula vazia de fundo. As paredes de fechamento do ninho foram significantemente mais espessas do que as partições celulares. Os casulos eram de coloração castanho-médio, fusiformes, flexíveis, lisos e mais ou menos brilhantes. Foram encontrados parasitóides da família Chrysididae e Eulophidae (Hymenoptera) e Tachinidae (Díptera) atacando ninhos de P. denticulatum. As atividades de nidificação das fêmeas só foram observadas no período quente e chuvoso. / Podium denticulatum it is a solitary wasp specie which belongs to the Podium class, Sphecidae, found from Mexico to Brazil. The females from this class are hunters, they catch and provide the nest with paralyzed cockroaches that are feed for their lavas. Podium species nesting in preexisting cavities, such as abandoned nests from other species, stem cavities and in nest traps. The major objective in this work it was to study the behavior aspects in detail from the P. denticulatum females, during the nesting process, besides the developing time, generation numbers by year and new information from the biology and phenology from the specie, allowing a comparative analysis from other authors. The study was done at the University of Sao Paulo, Ribeirao Preto Campus, where the weather is tropical, hot and humid showing two seasons will defined. Using trap-nests that were bamboo, tied in one end with a diversity of length and diameters. These trap-nests were inspected frequently, from September 2003 to September 2005, to assure that the females were working and to collect data. With this it was observed that the females show an inspection behavior to choose the nest-traps before the prey capture which are from the Blattellidae family. The eggs are placed between the first pair of legs from the prey and the whole development, from egg to adult, it was bigger among the females than the males. An important characteristic observed in this study is that the females close the cell at the end of the day if they didn?t complete the provision, returning next day. This behavior can be understood as a way to protect the lava feed or the egg. The material used to close the nest is mud collected in the country, which is casted by the female. The closing wall can be coated with a unknown resin. The female can finish the provision from one cell in a day or take up to five days, at the nest conclusion it can take up to nine days, and this time is related to outside factors. It was observed six generations and a period of day pause to the studied specie. The sexual cause wasn?t significantly different from the 1:1 proportion and the females were produced on the first brood cell. The cells are placed on a lineal series and the length and diameter in the trap-nests were diversified. Each nest had from one to six brood cell and in 43,8% of the nests the female built a vestibular cell. It was found nests with intercalary cells and empty space. The nest closing walls were significantly thicker than the cell division, fusiforme, flexible, plain and more less shiny. It was found parasitoids from the Chrysididae and Eulophidae (Hymenoptera) and Tachinidae (Diptera) attacking P. denticulatum nests. The nesting activities from the females were only observed at the hot and rainy days.
2

Comportamento de Podium denticulatum F. Smith, 1856 (hymenoptera, Sphecidae) em ninhos-armadilha / Behavior of Podium denticulatum F. Smith, 1856 (Hymenoptera, Sphecidae) in trap-nests

Favi Ribeiro 24 March 2006 (has links)
Podium denticulatum é uma espécie de vespa solitária que pertence ao gênero Podium, família Sphecidae, sendo encontrada desde o México o Brasil. As fêmeas desse gênero são caçadoras, capturam e aprovisionam o ninho com baratas paralisadas. As espécies de Podium nidificam em cavidades preexistentes, como ninhos abandonados de outras espécies de vespas, cavidades em troncos e em ninhos-armadilha (NA). O principal objetivo do presente trabalho foi estudar os aspectos comportamentais das atividades realizadas pelas fêmeas de P.denticulatum no processo de nidificação, e a obtenção de dados do tempo de desenvolvimento, número de gerações por ano e novas informações sobre a biologia e fenologia da espécie, permitindo uma análise comparativa com aquelas reportadas por outros autores. O estudo foi realizado no Campus da USP de Ribeirão Preto, SP, onde o clima é tropical quente e úmido. Foram utilizados NA que consistiram de gomos de bambus, fechados em uma das extremidades pelo nó, com comprimentos e diâmetros variados. Esses NA foram inspecionados, frequentemente, de setembro de 2003 a setembro de 2005, para constatação de fêmeas trabalhando e coleta de dados. Com isso, pôde-se constatar que as fêmeas exibem comportamento de inspeção e escolha dos NA antes de começar a captura de presas, as quais são representantes da família Blattellidae. Os ovos são colocados entre o primeiro par de pernas da presa e o desenvolvimento total, ou seja, do ovo até o adulto, foi maior nas fêmeas que nos machos. Uma característica importante observada neste estudo é que as fêmeas fecham a célula ao final do dia caso não tenham completado o aprovisionamento, retornado no dia seguinte. Esse comportamento pode ser interpretado como uma forma de proteção ao alimento larval ou ovo. O material utilizado para fechar as células e o ninho consiste de barro coletado no campo. A parede de fechamento pode ser revestida com uma resina de origem desconhecida. A fêmea pode terminar o aprovisionamento de uma célula em até cinco dias; na conclusão do ninho, ela pode demorar até nove dias, e esse tempo está relacionado à fatores externos. Foram observadas 6 gerações e um período de diapausa e a razão sexual não diferiu significantemente da proporção de 1:1. As fêmeas foram produzidas preferencialmente nas primeiras células de cria, que são dispostas em série linear. Cada ninho continha de 1 a 6 células de cria e, em 43,8% dos ninhos a fêmea construiu uma célula vestibular. Foram encontradas ainda ninhos com célula intercalar e célula vazia de fundo. As paredes de fechamento do ninho foram significantemente mais espessas do que as partições celulares. Os casulos eram de coloração castanho-médio, fusiformes, flexíveis, lisos e mais ou menos brilhantes. Foram encontrados parasitóides da família Chrysididae e Eulophidae (Hymenoptera) e Tachinidae (Díptera) atacando ninhos de P. denticulatum. As atividades de nidificação das fêmeas só foram observadas no período quente e chuvoso. / Podium denticulatum it is a solitary wasp specie which belongs to the Podium class, Sphecidae, found from Mexico to Brazil. The females from this class are hunters, they catch and provide the nest with paralyzed cockroaches that are feed for their lavas. Podium species nesting in preexisting cavities, such as abandoned nests from other species, stem cavities and in nest traps. The major objective in this work it was to study the behavior aspects in detail from the P. denticulatum females, during the nesting process, besides the developing time, generation numbers by year and new information from the biology and phenology from the specie, allowing a comparative analysis from other authors. The study was done at the University of Sao Paulo, Ribeirao Preto Campus, where the weather is tropical, hot and humid showing two seasons will defined. Using trap-nests that were bamboo, tied in one end with a diversity of length and diameters. These trap-nests were inspected frequently, from September 2003 to September 2005, to assure that the females were working and to collect data. With this it was observed that the females show an inspection behavior to choose the nest-traps before the prey capture which are from the Blattellidae family. The eggs are placed between the first pair of legs from the prey and the whole development, from egg to adult, it was bigger among the females than the males. An important characteristic observed in this study is that the females close the cell at the end of the day if they didn?t complete the provision, returning next day. This behavior can be understood as a way to protect the lava feed or the egg. The material used to close the nest is mud collected in the country, which is casted by the female. The closing wall can be coated with a unknown resin. The female can finish the provision from one cell in a day or take up to five days, at the nest conclusion it can take up to nine days, and this time is related to outside factors. It was observed six generations and a period of day pause to the studied specie. The sexual cause wasn?t significantly different from the 1:1 proportion and the females were produced on the first brood cell. The cells are placed on a lineal series and the length and diameter in the trap-nests were diversified. Each nest had from one to six brood cell and in 43,8% of the nests the female built a vestibular cell. It was found nests with intercalary cells and empty space. The nest closing walls were significantly thicker than the cell division, fusiforme, flexible, plain and more less shiny. It was found parasitoids from the Chrysididae and Eulophidae (Hymenoptera) and Tachinidae (Diptera) attacking P. denticulatum nests. The nesting activities from the females were only observed at the hot and rainy days.
3

Vespas solitárias (Hymenoptera: Aculeata) ocupando ninhos-armadilha no Parque Estadual da Ilha Anchieta, Ubatuba, SP / Solitary wasps (Hymenoptera: Aculeata) occupying trap nests in the Anchieta Island State Park, Ubatuba, SP.

Nascimento, Ana Luiza de Oliveira 17 June 2011 (has links)
O objetivo desse estudo foi examinar a composição de espécies e a abundância de vespas solitárias que nidificam em cavidades preexistentes no Parque Estadual da Ilha Anchieta, Ubatuba, SP, Brasil. As amostragens foram feitas durante dois anos, de setembro de 2007 a agosto de 2009, utilizando como ninhos-armadilha gomos de bambu e tubos feitos com cartolina preta. Os ninhos-armadilha foram inspecionados uma vez por mês e aqueles contendo ninhos completos foram coletados e levados para o laboratório. Para cada ninho-armadilha retirado, outro similar foi disponibilizado. No laboratório, os ninhos foram mantidos à temperatura ambiente e foram observados diariamente para a coleta dos indivíduos conforme eles emergiam. Foram obtidos um total de 142 ninhos com 457 células de cria construídos por fêmeas de 14 espécies: nove espécies foram da família Crabronidae, duas espécies da família Vespidae, subfamília Eumeninae, duas espécies da família Pompilidae e uma espécie da família Sphecidae. Além desses ninhos, de outros 112 contendo 311 células todos os imaturos estavam mortos ou apenas emergiram inimigos naturais. Nesses casos, apenas o gênero ou subfamília puderam ser identificados. Crabronidae foi a família mais abundante em número de células de cria construídas (67,6%), seguida por Vespidae (Eumeninae), Sphecidae e Pompilidae. As espécies mais abundantes foram: Trypoxylon lactitarse, Pachodynerus nasidens, Trypoxylon sp 2 aff nitidum e Podium denticulatum e Trypoxylon albitarse, Trypoxylon (Trypargilum) sp2, Trypoxylon punctivertex e Auplopus pratens foram as espécies mais pobremente representadas. Os inimigos naturais associados com os ninhos incluíram: Hymenoptera (Chrysididae, Ichneumonidae e Chalcididae) e Diptera (Sarcophagidae). O inimigo mais abundante foi o parasitóide Amobia floridensis (Diptera) responsável por 58.3% de todas as células de cria atacadas e foi encontrado em ninhos de Trypoxylon, Pachodynerus e Podium enquanto crisidídeos atacaram somente ninhos de Trypoxylon. As maiores freqüências de nidificação ocorreram durante o período mais quente e mais chuvoso do ano e uma correlação significativa foi encontrada entre os números mensais de ocupações dos ninhos-armadilha e os valores de temperatura. A razão sexual para Pachodynerus brevithorax e P. denticulatum não foi significantemente diferente de 1:1, mas para Trypoxylon lactitarse e Trypoxylon sp2 aff nitidum ela foi fortemente desviada para machos enquanto para Trypoxylon sp5 aff nitidum e P. nasidens ela foi fortemente desviada para fêmeas. / The aim of this study was to examine the species composition and the abundance of solitary wasps that nest in preexisting cavities at Parque Estadual da Ilha Anchieta (Anchieta Island State Park), Ubatuba, SP, Brazil. Sampling was made during two years, from September 2007 to August 2009, utilizing bamboo canes and tubes made of black cardboard as trap-nests. The traps were inspected once a month and those containing completed nests were collected, replaced with empty ones and taken to the laboratory. In the laboratory, the nests were kept at room temperature and observed daily until the adults emerged. A total of 142 nests with 457 individual brood cells of 14 species were obtained: nine species of digger wasps (Crabronidae), two species of mason wasps (Eumeninae, Vespidae), two species of spider wasps (Pompilidae), and one species of the roach-hunting wasps (Sphecidae). The most abundant family were digger wasps with 67.6% of all brood cells, followed by mason wasps (23.6%), roach-hunting wasps (5.9%) and spider wasps (2.9%). The most abundant species were: Trypoxylon lactitarse, Pachodynerus nasidens, Trypoxylon sp 2 aff nitidum, Podium denticulatum and Trypoxylon albitarse, Trypoxylon (Trypargilum) sp2, Trypoxylon punctivertex and Auplopus pratens were the rare species. The natural enemies associated with the nests included Hymenoptera (Chrysididae, Ichneumonidae and Chalcididae) and Diptera (Sarcophagidae). The most abundant enemy was the parasitoid Amobia floridensis (Diptera) accounting for 58.3% of all attacked brood cells and it was found in nests of Trypoxylon, Pachodynerus and Podium, whereas the chrysidids were found only in nests of Trypoxylon. The highest nesting frequencies occurred during the hottest and wettest period of the year and a significant correlation was found between the number of occupied trap-nests per month and the values of temperature. The sex ratio for Pachodynerus brevithorax and P. denticulatum was not significantly different from 1:1. On the other hand, for Trypoxylon lactitarse and Trypoxylon sp2 aff nitidum the sex ratio was strongly male-biased whereas for Trypoxylon sp5 aff nitidum and P. nasidens the sex ratio was strongly female-biased.
4

Modul parního generátoru / Steam generator module

Kaláb, Ctibor January 2010 (has links)
The thesis deals with a project of a steam generator heated with liquid sodium. The first section describes some types of steam generators at nuclear power plants which have been projected or put into use. The next part presents a draft concept of the steam generator, solved by this work. The implementation of the steam generator module has been selected from several options, based on the thermal, hydraulic and stress calculations and on the chosen criteria. The conclusion of this thesis deals with the evaluation of the final solution in terms of nuclear safety and technical solutions, and compares this solution to similar projects following various criteria.
5

Posuvná a zvedací plošina / Sliding and Lifting Platform

Kučo, Stanislav January 2014 (has links)
This thesis describes a project of a mobile stage device that will be used for a concert tour of Lucie. The first part characterizes the given task and expounds description and function of the device itself. The second part focuses on the design concept of supporting frames. This is followed by design and calculation of all mechanisms, actuators and construction of individual moving parts of a sliding and lifting platform. The last part verifies stability of the whole construction in accordance with appropriate standards. The thesis also contains technical documentation, which is to be found in appendix.
6

Centrum Ponava Brno, Královo Pole / Ponava Centre Brno, Královo Pole

Vjaclovský, Jaromír January 2014 (has links)
My diploma thesis is mainly focusing on analyzing the potential of chosen site and it’s possibilities to be used for building a community center. Designed building should serve as a starting point for revitalization of Ponava. It is designed in a way, which makes this building an icon of the whole revitalization process and also is offering a wide variety of cultural events. In a combination with proposed solution for traffic and people flow a meeting point for a wide spectrum should be achieved with designed building as a podium for city life. Office block is then stepping out a bit from this coulisse and is the most dominant part which is supporting the other cantilevered volumes. By doing so, the important role of municipality is captured in the image of the building itself.
7

Návrh optimálního průběhu montáže strojů "Multinip" ve vybraném podniku / Proposal for Optimizations the Process Machine Bulding Conditions in Company

Valouch, Jiří January 2008 (has links)
Making of an analysis of the assembly process. Presentation of safe and efficient assembly with the help of platforms or scaffolding for all types of machines according to the working width. Choosing the most suitable alternative of machine assembly. Suggestion about the assembly workstation's placement in a hall. Storage and logistics. Advantages of the chosen solution. Summary of the conclusions.
8

Koncertní sál v Brně / Concert-Hall Brno

Špondrová, Hana January 2012 (has links)
This study addresses the design of a new cultural center in the Moravian Square – a polyfunctional object with a great concert hall, a small multifunctional hall with operating and technical facilities, parking, customer services for visitors, and areas for employees and musicians. Also, a restaurant & cafe is a part of this proposed project. New space replaces the unsatisfactory conditions of the current residence of Brno Filharmony in Besední dům – too small, unsatisfactory acoustics, and complicated operation. The cultural center, also, serves as a congress center that is currently missing in Brno - a city of trade fairs and exhibitions. The proposition respects the existing character of the park. The capacity of the new proposed design is from three-quarters underground, and therefore makes a way (nebo „space“) for greenery and pedestrians. The designed object consists of one ground and two underground levels. It has a simple shape with a greenery roof, and is incorporated into the existing spaces of the square. The distinctive element of the design is an open outside atrium in the first underground level. The facase is covered with boards (nebo „panels“) made out of Corian® material in a white shade of Glacier White in contrast to glass windows. The supporting construction is designed from monolithic iron concrete.

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