<p>High demands are set on all equipment used in emergency service work, where small margins can be the distinguishing factor between life and death during a rescue operation. It is important that tools such as ladders quickly and easily can be dismounted from a vehicle and still satisfy the regulatory requirements for securing loads during transport. The existing solution for getting ladders down from the roof of a fire engine requires a large manual effort from the user in an ergonomically unsound posture.</p><p>In this degree project a new ladder holder is developed with focus on the user to solve the ergonomic problems and at the same time create a more compact design that can be adapted to several different types of ladders. After an initial pre-study with user-interviews and measurement of forces and distances a set of requirements was formulated that came to govern the project's direction. Creative methods were used to generate concepts that improved the function and through design solutions, calculations and testing in CAD a base for manufacturing of a new product was created.</p><p>The result is a completely new type of ladder holder that minimizes the user's manual effort and simplifies the securing of ladders in the holder. Measures have been taken to reduce material usage and manufacturing cost, while aiming for reliability and durability. Further development and construction of physical prototypes is needed before the new ladder holder can go into production.</p> / <p>Höga krav ställs på all utrustning som används vid räddningstjänstens arbete, då små marginaler kan vara skillnaden mellan liv och död under en utryckning vid olycka. Det är viktigt att verktyg såsom stegar snabbt och enkelt kan monteras av från ett fordon och samtidigt uppfyller lagkrav för säkring av last under färd. Den existerande lösningen för att få ned stegar från taket på en brandbil kräver en stor manuell kraftansträngning från användaren i en oergonomisk arbetsställning.</p><p>I detta examensarbete utvecklas en ny steghållare med användaren i fokus för att lösa de ergonomiska problemen och samtidigt skapa en mer kompakt konstruktion som kan anpassas till flera olika typer av stegar. Efter en inledande förstudie med användarintervjuer och mätning av krafter och avstånd formulerades en kravspecifikation som kom att styra projektets inriktning. Kreativa metoder användes för att generera koncept som förbättrade funktionen och via konstruktionslösningar, beräkningar och tester i CAD skapades ett tillverkningsunderlag för en ny produkt.</p><p>Resultatet är en helt ny typ av steghållare som minimerar användarens manuella kraft-ansträngning och förenklar låsningen av stegarna i hållaren. Åtgärder har tagits för att minska materialåtgång och tillverkningskostnad samtidigt som pålitlighet och hållfasthet har eftersträvats. Mer utveckling och konstruktion av fysiska prototyper är nödvändig innan den nya steghållaren kan gå i produktion.</p>

Oil well blow outs are investigated to determine methods to quickly and accurately respond to an emergency situation. Flow rate is needed to guide containment and dispersal operations. The Stratified Integral Multiphase Plume, SIMP, model was used to investigate the range of initial conditions available to integral modeling. Sensitivity to initial conditions is modest, but without experimental data at the appropriate scale the most accurate condition is unable to be determined. Flow rates are difficult to directly measure in blow out situations, so another method must be determined; therefore, sensitivity of several parameters to flow rate was also evaluated. Methane concentration in the first intrusion can be used in conjunction with velocity and trap height measurements to determine flow rate using an integral model. Plume width and temperature were determined to have little sensitivity. Separately, a containment dome was tested in the laboratory to determine if a full scale dome can be used to contain an oil leak in the field. The dome was found to have satisfactory entrapment in the designed position.

The objective of this article is to present the importance of implementing the Closure Planfor Mineral Projects. To this purpose, the author studies and analyzes success stories of closing mining projects, in particular, focuses its analysis on Colombian and Peruvian cases. / El objetivo de este artículo es dar a conocer la importancia de la implementación del Plan de Cierre de Proyectos Mineros. Para tal fin, el autor parte del estudio y análisis de casos exitosos de cierre de proyectos mineros, en particular, centra su análisis en los escenarios colombiano y peruano.

Le perçage vibratoire auto entretenu propose la rupture technologique nécessaire à une augmentation de la performance du perçage profond. Un porte outil spécifique a été conçu pour permettre les vibrations axiales, et se présente sous la forme d'un système masse ressort, dont les caractéristiques sont identifiés par l'utilisation de la théorie des lobes de stabilité. L'identification des caractéristiques géométriques d'un outil optimal passe par la caractérisation des aspects tribologiques, des caractéristiques mécaniques du matériau usiné, ainsi que la définition d'une préparation d'arête adéquate. Enfin, ce procédé étant piloté par l'énergie de la coupe, deux modèles d'effort ont été identifiés. La méthode CAM repose sur la discrétisation de l'effort de perçage lors de la phase de pénétration, alors que l'approche analytique permet de prédire l'effort à partir d'un modèle de coupe analytique identifié à partir d'essais de coupe oblique. / Self-sustained vibration drilling offers the technological breakthrough needed to increase the performance of deep drilling. A special tool holder is designed to allow axial vibration, and comes as a spring mass system, whose characteristics are identified by the use of the theory of stability lobes. Identification of the geometric characteristics of an optimal tool requires the characterization of tribological aspects, mechanical properties of the machined material, and the definition of a proper edge preparation. Finally, this process is driven by the energy of the cut, and two types of effort have been identified. The Edge-Material-Pair Method is based on the discretization of the drilling thrust force during penetration phase, while the analytical approach can predict forces from a cut pattern identified from oblique cutting tests.

Nous considérons certaines séries de Fourier liées à la théorie des formes modulaires. Nous étudions leurs propriétés analytiques : la dérivabilité, le module de continuité et l'exposant de Hölder. Nous utilisons deux méthodes différentes. La première revient à trouver et itérer une équation fonctionnelle de la fonction étudiée (méthode d'Itatsu) et la deuxième provient de l'analyse en ondelettes (méthode de Jaffard). L'étape essentielle de chacune dépend de la modularité sous-jacente. Nous trouvons que les propriétés analytiques de ces séries aux points irrationnels sont liées aux propriétés diophantiennes de ces points. Ce travail a été motivé par l'étude de la fonction de Riemann. / We consider certain Fourier series which arise from modular or automorphicforms. We study their analytic properties: differentiability, modulus of continuity and theH¨older regularity exponent. We use two different methods. One is based on finding anditerating a functional equation for the function studied (Itatsu’s method), the second onecomes from wavelet analysis (Jaffard’s method). The crucial steps in both of them arebased on the underlined modularity. We find that the analytic properties of these seriesat an irrational x are related to the fine diophantine properties of x, in a very precise way.The work was motivated by the study of the Riemann series.

The thesis is focused on the research and development of a new hybrid one-wire bus with special use enabling microelectronic integration. The bus, its physical layer and protocol have been developed based on applied research to meet the complex requirements of a new application group. These requirements are especially laid on the bus robustness and its immunity to interference and to work under real operating conditions. Part of the thesis is a description of existing solutions of one-wire buses, definition of current solutions and setting of goals for research of the new bus. Further are made the design of protocol and operating parameters of the bus operating in low power and power mode. In conclusion, the thesis deals with the practical verification of the proposed solution and there is also suggested a perspective of follow-up research in this area.

The diploma work seeks for a personality of an ideal manager in chosen institutions of public administration, defines, who is an ideal manager and compares theoretical knowledges with reality. It contains a concept of training and a manual conductive to increasing in professionalism of managers in public administration.

JURČA Jan: The manufacturing of sheet metal part by deep draw technology. Thesis of Master´s Studies, the 5th Year of Study, the School-year 2008/2009, The Institute of Manufacturing Technology, Department of Machining, FSI VUT Brno.The thesis deals with the project of manufacturing the part of the car body – the fifth door by deep draw technology. The material is zinc-coated sheet metal HX220YD EN 10292. Mechanical properties and suitability of the material are evaluated by mechanical tests. The structure of the material is evaluated by metalography scratch pattern. The analysis of draw process and manufacturability of the part is made by calculations and AutoForm software. The production line, necessary machinery and construction solution of draw tool for the manufacturing the part are determined. Last section deals with economical evaluation of the production.

This diploma thesis deals with the creation of engineering design of holder of projector lens. The thesis is created in cooperation with department of development in Varroc Lighting Systems, s.r.o. Initial part provides a brief description of the development of lighting technology used in car´s headlamps. The following part describes solutions currently used in clamping the lens in holder. The main part of the thesis focuses on the design of holder of projector lens itself. Projector lenses testing provide critical values of cohesive failure of the lens material, which cannot be exceed during the process of lens fitting and its subsequent clamping. In the final part the engineering design is verified and optimized using finite element analysis.

PHDRDV / Institute for Rural Development