“OPENMODELICA is an open-source Modelica-based modeling and simulation environment intended for industrial and academic usage. Its long-term development is supported by a non-profit organization – the Open Source Modelica Consortium (OSMC).” OpenModelica aims to provide an enhanced, Open Source Modelica modeling and simulation environment and this thesis is an addition in this direction.  The purpose of this thesis is to create a web based graphical connection editor. There are other open-source connection editors available, but these editors were desktop applications. There is one web based editor but it is a textual editor. Desktop applications need installation and space on the local system. OMWeb connection editor is the first web based graphical connection editor that runs on a web browser. It’s a web platform for OpenModelica and provides the environment for modeling and simulation in the Modelica Modeling Language. The OMWeb connection editor can run on any system without the need for an OpenModelica installation. If a system is connected to the internet, and contains a web browser, it can run the OMWeb connection editor. The OMWeb connection editor uses Java Runtime Environment to run an applet in the browser. The user can create models graphically; but they can also be viewed in the textual format. The user can simulate and plot his models. The plot file generated for the model can be downloaded from the server.  The OMWeb Connection Editor uses Servlet to handle requests from the client. The servlet is responsible for the communication with OpenModelica Compiler. It also gets the results from OMC and sends them back to the client. In our case the browser is the client.

No description available.

Thesis deals with use of multicriteria decision methods for selecting internet connection at home with territorial focus on Prague. Teoretical part deals with brief description of technologies used, chooses appropriate providers and their tarifs, describes criterias and principles and methods of multicriteria decision. The practical part describes 3 types of model users with different preferences, which are tested at 3 selected methods of multicriteria decision. Thesis includes a comparison of results with the original values and those of adjusted and overall comparison and the conclusions drawn.

L'assemblage de planches par technique de collage est utilisé pour réaliser des éléments de structure en bois performants. Le collage permet d'obtenir des rigidités et des résistances d'assemblages excellentes. Cependant, ces produits sont souvent polluants à différents degrés et ne permettent pas de s'adapter à une cadence industrielle de fabrication, notamment à cause des temps de pressage. Le niveau de performance s'effondre lorsque l'assemblage par collage est remplacé par des organes de type tige, tels que des pointes, vis ou tourillons en bois, mais ils confèrent un temps de mise en oeuvre instantané. Dans ces types d'assemblages mécaniques, la surface de contact entre les planches n'est plus du tout utilisée pour transmettre des efforts. L'objectif de ce travail est de montrer comment la préparation mécanique des interfaces permet de fortement améliorer le comportement de ces assemblages. La finalité étant de produire des éléments de structure sans composés organiques volatiles (COV), dont la fabrication serait réalisable par un robot industriel, de manière flexible et en utilisant des essences mixtes de bois locaux. La première partie de cette étude est consacrée à répertorier et analyser les différents systèmes reconstitués en bois, ainsi que de montrer comment mener un dimensionnement en tenant compte du caractère imparfait de la connexion. Cette partie montre que la prise en compte du caractère non linéaire des liaisons mécaniques dans les systèmes reconstitués est souvent très imprécise et conduit à des écarts de dimensionnement importants. La deuxième partie décrit une méthodologie pour pallier à ce manque, développée à partir de la modélisation non linéaire d'un élément de construction de type poutre. Cette approche conduit à proposer des raideurs sécantes précises de la liaison permettant le calcul linéaire exact pour les ingénieurs. Cette méthodologie permet de caractériser la raideur d'une liaison par une approche liée au comportement plutôt qu'une approche normative générale. Suite à la mise en évidence de la souplesse de la liaison par organes, une troisième partie expose une réflexion sur l'utilisation des surfaces en contact pour transmettre les efforts. Un traitement mécanique de type rainurage est réalisé à l'interface de contact des pièces à assembler. Il permet de transmettre des efforts de cisaillement et de torsion dans le plan de croisement des planches. Le maintien des éléments en contact est également étudié en développant un principe de vis conique en bois. Pour valider ces principes, des campagnes d'essais sont réalisées afin de mesurer les performances obtenues par le rainurage, la vis conique en bois et leurs utilisations simultanées. La dernière partie est consacrée à la mise en oeuvre de l'assemblage amélioré dans des éléments de structure afin d'en confirmer son potentiel. Le premier élément est une poutre ajourée, le second est un élément de mur contreventant. Les résultats d'essais sont comparés à des modèles numériques incluant le comportement non linéaire des assemblages rainurés vissés. Ces réalisations en grandeurs réelles permettent de valider également leur faisabilité par un robot industriel / Plank bonding connection is used to produce efficient structural timber. The bonding achieves excellent rigidity and connection resistance. However, these products are often pollutants and are incompatible with industrial production rates due to the pressing time. Their performances collapse when the adhesive connection is replaced by rodlike fasteners, such as nails, screws or wooden dowels, but these connections allow a quick assembly. In these assemblies the contact surfaces between planks are not used for transmitting loads. The purpose of this study is to point out how mechanical preparation of the interfaces improves the performance of timber connections. The aim is to produce structural members without volatile organic compounds (VOC), achievable by an industrial robot allowing for flexibility, and using mixed wood local species. The first part of this study consists in identifying and analyzing reconstituted wood systems, as well as showing how to conduct a design by taking into account the partial composite action of connectors. This part explains that the chosen behavior of the mechanical connections in reconstituted systems is frequently very imprecise and leads to significant differences in design. The second part describes a methodology to overcome this lack, developed from the nonlinear modeling of a beamtype component. This approach leads to determine the fastener's secant stiffness for an exact linear calculation for engineers. The outcome of this methodology is the quantification of the fastener's secant stiffness by a related behavior rather than a general normative behavior. Due to the flexibility of members, a third part presents a reflection on the use of the contact surfaces for transmitting loads. The plank interfaces were machined in order to obtain grooves. This binding allows the transmission of shear and torsion forces in the intersection plane of the planks. Maintaining the contact is managed by the development of a wooden conical screw. To validate these principles, test campaigns were carried out to measure the performance of the groove, the wooden conical screw and their simultaneous use. The last section deals with the implementation of the improved assembly in structural members in order to confirm its potential. The first element type is a castellated beams and the second one is a bracing wall. Experimental results are compared with numerical models including the nonlinear grooved screwed connection behavior. Furthermore, these full scale elements validate the feasibility by an industrial robot

The goal of my bachelor thesis is to introduce Debtor and Creditors to readers. In every topical unit there are both teoretical and practical parts (accounting schematics and examples).

This dissertation examines data transfers along the existing lines of cable TV. PLC equipment has been selected as the focus of this examination. The essay examines the question of Multicarrier modulation and focuses more specifically onto the problem of OFDM modulation, which is being used by the selected equipment. It further describes the process of integration of PLC equipment into the cable TV network, modifications of the CATV and the basic topology of the created data networks. The essay also offers a closer look onto a PLC modem and Head End from Corinex that have been used in the implementation of a data network in a selected rural settlement. The author has also raised the issue of the problems connected with cable wires connected with this particular type of data transfers and the solutions of some of the encountered problems. The characteristics of this network have then been measured during normal operation of the created network. Measurements have been carried out in order to determine the transfer speed on a physical and transfer level, the SNR of specific connections and the signal attenuation. The measurements have confirmed the suitability of the used PLC equipment for the purposes of data transfer along the cable TV lines as far as data speed and signal strength was concerned. A map of the particular cable TV lines and the PLC equipment has been included in the attachment.

The design of plastic parts for presure valve filter (Reverse rinsing filter combination with pressure reducing valve. Fine filter and rotary connector flange for installation in horizontal or vertical pipe work). Optimization of fixture of existing device Additional function record of cleaning filter (date rocord) Optimization of easy makeability Design of concept of filter base on study from external company Description of function of device Proposal of design changes of selected components Creation of 3D model and drawings of selected components Stress – strain analysis in Pro/Mechanica Simulation of molding process with using Plastic adviser tool Basic calculation of hydraulic mechanism

Steel structures have been in use in high-rise structures since its more economical as compared to the use of concrete. The steel frames constructed fall under ordinary moment-resisting structures or special moment-resisting structures. Since the occurrence of Northridge earthquake in 1994 and Kobe earthquake in 1995, a lot of research has been done on causes of structural failure as well as remedies to the faults previously present in the building before the occurrence of the earthquake.

Nationalmuseum är en fantastisk byggnad som har en unik placering på Blasieholmen med utsikt över bl.a. slottet, skeppsholmen och operan. En förbättring av Nationalmuseums verksamhet är dock nödvändig då inlastningen inte tycks fungera och det finns behov av utökat utrymme. En ny tillbyggnad behövs. Utöver det givna programmet för lösning av inlastning, så ville jag undersöka om det fanns fler problem med plats och program som behövde lösas. Jag identifierade ytterligare två problem, vilket resulterade i totalt tre åtgärdspunkter:  1.Inlastning. Konstens nuvarande väg till museet är inte funktionell. 2.Parken. I nuläget är parken enbart en bakgård. Många markerade gränsdragningar på Blasieholmen gör att området känns överbestämt, dvs. otydligt och ofokuserat. 3.Publiken. Dragningskraften till museer i allmänhet har svalnat. Jag vill väva samman alla tre problemområden. Jag vill göra både museet och parken mer publika och levande samtidigt som inlastningen förbättras. Alltså: jag vill förbättra konstens väg in i museet, konstens yta genom att koppla ihop parken och konstens tillgänglighet för publiken. Jag delar upp programmet i tre delar och i fem huskroppar där den ledande principen är att utnyttja mindre ytor för att skapa en större helhet. / The Nationalmuseum in Stockholm is a remarkable building with a unique location at Blasieholmen with an astounding view of the Royal Palace, Skeppsholmen and the Royal Opera. The Nationalmuseum, today, has certain problems that need to be resolved to improve the museum’s operation. These problems are the loading- place for art to and from the museum and an increasing need of space. Thus a new extension to the museum is needed. In addition to the specified requirement, solving the loading-place for art, I wanted to investigate the site and the program to see if I could find other problems that required solution. Furthermore, I identified two more problems which resulted in three areas requiring alterations.  The loading- place for art. The current path of art to and from the museum is not functional. The park. The park, in the present situation, seems more like a backyard than an attractive space for the public. The public. The attraction to museums in general seems to be decreasing. I want to work with the problem areas simultaneously. I want the museum and the park to become more open, connected and alive and at the same time improve the art’s path into the museum. So, I aim to improve the path of the art and the spaces of the art by enhancing both the accessibility of the park and the art and join them together. I have divided the program into three parts and into five building volumes, where the guiding principle is “smaller space to create a larger whole”.

No description available.