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The Tschirnhaus Transform is a method to solve quartic equations. If the quartic equation has four distinct real roots, a low computation complexity algorithm is proposed and applied to the the 10-order Line Spectrum Pairs(LSP).However, during the procedures of calculation, the existence of the inverse trigonometric functions increase the computation load of the hardware implementation. We also propose some methods to solve this problem and increase the speed of the calculation. A table of comparison result with the previous proposed Complex-Free Farrari formula is also included.

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Sammanfattning Inom byggbranschen är det viktigt att ständigt utveckla och förbättra bygglogistik avseende kostnad, effektivitet och klimatavtryck för att behålla företagens konkurrenskraft. Denna studie syftar till att undersöka tjänster och komponenter som ingår i bygglogistikerbjudandet från logistiktjänsteleverantörer (LSP), som hyr ut maskiner, utrustning och hyresrelaterade tjänster. Målet är att beskriva erbjudandet, beställarens behov samt effekterna av bygglogistik på ett byggprojekt. Byggprojekt kännetecknas av temporaritet och materialintensitet. Material och tjänster utgör 60–80% av den totala projektkostnaden, där logistikkostnader står för 40% av den totala kostnaden. Det är därför viktigt att prioritera bygglogistik för att hålla nere kostnader. Traditionellt har logistiktjänsteleverantörer anlitats för enbart leveranser och inte som en strategisk resurs för att förbättra byggprojektens resultat. På senare tid har bygglogistik fått ökad uppmärksamhet. Beställare och entreprenörer har insett fördelarna med effektiv bygglogistik. För att implementera LSP-tjänster krävs ökad kunskap om deras roll och funktion. Studien visar att det är viktigt att involvera LSP redan i projekterings- och planeringsfasen för att uppnå bästa möjliga effekt. Detta kan leda till effektivare produktion och minskade kostnader under byggprojektets produktionsfas. Om LSP-tjänster implementeras i ett senare skede kan det vara svårt att hitta optimala lösningar och många problem kommer att behöva lösas på plats, vilket kan skapa ökade kostnader, ökat klimatavtryck och minskad total effektivitet. Studien indikerar att beställarens behov kan beskrivas i form av processer, verktyg, arbetsmetoder, checklistor och rutiner. För att effektivisera byggprocessen behöver varje byggprojekt tillämpa bygglogistiklösningar som är anpassade till det specifika projektet, i och med att varje projekt är unik på sitt sätt.  Genom att modularisera tjänster som korresponderar till beställarens behov blir det enklare för beställaren att välja rätt tjänster för det unika projektet och känna sig trygg i processen Genom att överlåta hela logistikansvaret till LSP frigörs tid för beställaren, som då kan fokusera på sin befintliga verksamhet och optimera projektets övriga delar. Studien visar exempelvis att logistikcentret möjliggjorde för verksamheten att fortsätta parallellt med byggnationen. Det är viktigt att kontraktet är fullständigt och innehåller beskrivningar av alla övergripande tjänster för att undvika extra kostnader och tvister när logistikansvar överlåts.  För att utforma ett logistiklösningserbjudande inom byggbranschen rekommenderas maskinuthyrare, baserat på fallstudien, att följa de rekommenderade stegen som har presenterats i rapporten  Sammanfattningsvis indikerar studien att LSP-tjänster är effektiva och fungerar väl. Alla modultjänster inom LSP är viktiga, och det behövs ytterligare tjänster och verktyg för att komplettera LSP och bidra till lyckade projekt. Att öka kunskapen om och involvera LSP tidigt i projekt kan leda till bättre effektivitet och minskade kostnader. / Abstract In this study, construction logistics modules (services and components) are evaluated to the needs of the construction industry. These modules need to be constantly developed and improved in terms of cost, efficiency, climate footprint, etc. to be part of the constant development. The purpose of the study was to investigate which services and components can be included in the construction logistics offer from lessors of machinery, equipment, and rental-related services, also known as Logistics Service Providers (LSP). The goal was to describe the offer, what client needs are met, and what effects construction logistics can create. Construction projects are characterized by an element of temporality with new production facilities in each new project, as production is carried out at the final point of assembly. Construction is material-intensive and costs for materials and services constitute to 60–80 percent of the total project cost, where the project cost constitutes 40 percent of all supply chain management costs. This means that construction supply chain management should be prioritized in the construction industry. Logistics management companies have traditionally been hired precisely for their purpose, i.e., to only carry out deliveries and not as an opportunity to improve the results of construction projects. Construction projects have instead solved their day-to-day supply needs and have not had an overarching logistics plan that covered the entire project's continuum, especially during the production phase. Recently, construction supply chain management has received more attention from both the construction industry and the scientific community. The contractors have begun to see the benefits of managing logistics in an efficient manner. In the construction industry, outsourcing is a standard concept and construction projects rely heavily on having a subcontractor and suppliers procured for each project. One of the disadvantages in the construction industry is the view of supply chain management and the knowledge of the modules' efficiency in production. To be able to implement this, knowledge of LSP needs to be increased and where the included modules are used in all parts of the construction industry. Results from the study indicate that it is important to involve LSP in a project already in the design and planning phase, to get the best effect of the LSP service It can contribute to achieve an efficient production and reduce the costs of the project in the production phase. When applying the LSP service at a later stage in a project, it entails certain difficulties in finding the most effective solutions, where many problems need to be solved ad hoc. This way of working is not the most efficient and is usually costly compared to if you had tried to solve such problems already in the design phase. It is difficult to subsequently introduce the LSP service in an ongoing project that is about to fail or is not going well. It works to apply LSP at a later stage, which will also have an effect. In summary, one based on the study that the LSP is an efficient way of working. All module services within LSP are important and additional services/tools are needed to supplement LSP that contribute to a successful project

Programmer en un langage de programmation peut être une tâche ardue. Même les plus chevronnés ne sont pas à l’abri de commettre des erreurs. Il est donc important pour les programmeurs d’avoir des aides pour écrire leur code plus efficacement et plus rapidement. Typer est un jeune langage de programmation en développement. Actuellement, le langage a beaucoup de limitations d’aides pour les programmeurs. En effet, on ne peut coder en Typer que dans un terminal, dans un fichier et compiler le fichier ou dans des environnements primitifs. On apporte une solution à ce problème en offrant, dans ce travail, un serveur LSP au langage qui va offrir des fonctionnalités comme la complétion de code, le surlignement des erreurs, etc, pour permettre aux programmeurs Typer de coder plus facilement et de pouvoir le faire dans leur éditeur/IDE préféré. / Programming in a programming language can be a daunting task. Even the most seasoned are not immune to make mistakes. It is therefore important for programmers to have helpers to write their code more efficiently and quickly. Typer is a young programming language in development. Currently, the language has a lot of helper limitations for programmers. Indeed, we can code in Typer only in a terminal, in a file and compile the file or in primitive environments. We solve this problem by offering in this work, an LSP server to the language which will offer features such as code completion, error highlighting...etc, to allow Typer programmers to code more easily and efficiently, and also, to be able to do it in their favorite editor/IDE.

Recently some language courses based on so-called “fashion language” were developed in different countries, particularly in England, Italy and France. We predict that Chinese “fashion language” will become important in the world of fashion design and a course on Chinese “fashion language” will be in great demand by people working in the fashion industry. It is noticed that students studying Chinese in regular classes are not able to read fashion magazines and utilize “fashion language” because it includes special terminology and stylistics. “Fashion language” is a language for specific purpose (LSP) and as any LSP it has specific features. This study focuses on the features of “fashion Chinese” by analyzing the texts of Elle Taiwan, Vogue Taiwan, Marie Claire Taiwan magazines and fashion resource Style.com.tw. We have applied corpus ananlysis in our research, and recommendations for a language course on “fashion Chinese” are given in the final part of the study.

In the introduction of this thesis the reasons for transition from older to a new technology called MultiProtocol Label Switching are mentioned – the modern technology enables simple network extension. The theoretical part contains basic principles of this techno- logy and their practical application for supplying private networks to the customers using provider’s network. In practical part packets are analyzed considering the theory. In addi- tion. All the technologies tested on a real network. Experience gained while working on this thesis are assessed during creating laboratory task for class Architecture of Networks intended for students of Bachelor’s study programme.

In the modern era there exist applications that require very high resources and generate a tremendous amount of traffic so they require considerable amount of bandwidth and QOS to operate and perform correctly. MPLS is a new and a fast technology that offers much remuneration both in terms of providing trouble-free and efficient security together with the high speed of switching. MPLS not only guarantees quality of service of IP networks but in addition to provides scope for traffic engineering it offers many enhanced features of IP networks as it does not replace IP routing, but works along with existing and future routing technologies to provide high-speed data forwarding between label-switched routers (LSRs) together with QOS. Many network carriers are facing the problem of how to accommodate such ever-growing demands for bandwidth. And the static nature of current routing algorithms, such as OSPF or IS-IS, the situation is going even worse since the traffic is concentrated on the "least cost" paths which causes the congestion for some links while leaving other links lightly loaded. Therefore, MPLS traffic engineering is proposed and by taking advantage of MPLS, traffic engineering can route the packets through explicit paths to optimize network resource utilization and traffic performance. MPLS provides a robust quality of service control feature in the internet. MPLS class of service feature can work in accordance with other quality of service architectures for IP networks.

Les structures périodiques de surface induites par laser femtoseconde(fs-LIPSS) attirent l'attention scientifique et technique en raison de la possibilité de produire des nanostructures en dessous de la longueur d'onde optique. Ces éléments sont essentiels pour l'ingénierie de surface et les procédés, notamment en tribologie, mouillabilité, la mécanique, le marquage et la lutte contre la contrefaçon. Selon le régime d'interaction laser, en particulier la fluence du laser, le nombre d'impulsions et le type de matériaux, les impulsions ultracourtes peuvent induire des basses et des hautes fréquences spatiales-LIPSS (LSFL et HSFL), avec l'orientation perpendiculaire (┴E) ou parallèle (║E) à la polarisation du laser. Compte tenu de leur potentiel pour la nano-fabrication, ce travail se concentre sur les mécanismes potentiels de formation des LIPSS, en particulier la formation des HSFL sur les alliages métalliques. Afin d'étudier les indices optiques transitoires de matériaux excités dans la formation fs-LIPSS, nous avons d'abord développé de l’ellipsométrie résolue en temps afin de mesurer les indices optiques dynamiques des matériaux excités. Ainsi, nous avons obtenu un aperçu de la dynamique de la fonction diélectrique intrinsèquement liée à la configuration électronique et au réseau cristallin. Des simulations de premiers principes sont ensuite utilisées pour révéler la façon dont la configuration électronique change au cours de l'excitation, responsable d’indices optiques transitoires. Les effets des indices optiques transitoires sont pris en compte dans les mécanismes de formation de LIPSS. Sur la base d’expériences de formations des fs-LIPSS sur six matériaux différents, incluant du tungstène métallique, du silicium semiconducteur, de la silice fondue diélectrique, un superalliage monocristallin CMSX-4, un alliage amorphe de Zr-BMG et son alliage cristallin correspondant Zr-CA, nous étudions les mécanismes de formation des LIPSS dans le domaine électromagnétique par des simulations de différences finies dans le domaine temporel (FDTD), liées à la distribution d'énergie électromagnétique suivie par la dynamique de l'excitation optique et par l'évolution de la topologie avec le nombre d’impulsions et les matériaux. Nous nous concentrons sur l'origine électromagnétique de la formation des LIPSS et révélons un facteur principal potentiel de leur formation. Elle peut être expliquée par la modulation de l'énergie déposée sur la surface par des effets électromagnétiques. La modulation de l'énergie provient principalement de l'interférence entre le laser incident et les ondes de surface diffusées (pour LSFL ( ┴ E)), complétée par l'interférence entre les ondes de surface diffusées (pour HSFL (┴E)). Spécialement, pour HSFL (║E) sur Zr-CA, nous avons proposé que les scénarios de formation reposent sur des processus individuels d’exaltation anisotrope du champ. La topologie de surface, évoluant avec le nombre d'impulsions laser, induit une modulation d'énergie déposée sur la surface définie et amplifiée par la rétroaction / Femtosecond laser-induced periodic surface structures (fs-LIPSS) attract the scientific and technical attention due to the ability to produce nanostructures below the optical wavelength. These are essential for surface engineering and treatment, notably in tribology, wettability, mechanics, marking and counterfeiting. Depending on the regime of laser interaction, particularly on the laser fluence, pulse number and material type, ultrashort pulses can induce the low- and high-spatial-frequency-LIPPS (LSFL and HSFL), with the orientation perpendicular (┴E) or parallel (║E) to the laser polarization. Considering their potential in the nano-manufacturing, this work focuses on potential mechanisms for LIPSS formation, especially HSFL formation on the metallic alloys. In order to investigate the transient optical indices of excited materials in fs-LIPSS formation, we first developed time-resolved ellipsometry to measure dynamic optical indices of excited materials. Thus we gain insights in the dynamics of the dielectric function where this is intrinsically related to the electronic configuration and lattice structure. First principle simulations are then used to reveal how the electronic configuration changes during the excitation, responsible for the transient optical indices. The effects of transient optical indices are considered in the LIPSS formation mechanisms. Based on the experiments of fs-LIPSS formations on six different materials, involving metal tungsten, semiconductor silicon, dielectric fused silica, single-crystal superalloy CMSX-4, amorphous alloy Zr-BMG and its corresponding crystal alloy Zr-CA, we investigate the LIPSS formation mechanisms in the electromagnetic domain by finite-difference time-domain (FDTD) simulations, related to the electromagnetic energy distribution followed by the dynamics of optical excitation, evolving topologies with pulse number and materials.We focus on the electromagnetic origin of LIPSS formation and reveal a potential primary factor for LIPSS formation. LIPSS formation can be explained by deposited energy modulation on surface via electromagnetic effects. The energy modulation mainly comes from the interference between incident laser and scattered surface wave (for LSFL(┴E)), being complemented by the interference between scattered surface waves (for HSFL(┴E)). Specially, for HSFL (║E) on Zr-CA, we proposed that the formation scenarios rely on individual anisotropic field-enhancement processes. The evolving surface topology with laser pulse number leads to a feedback-driven energy modulation deposited on surface

In this thesis 5 Swedish companies that use logistics service providers (LSPs: carriers, intermediaries and third party logistics providers) are interviewed to establish how Swedish LSPs fare in terms on coordination. More specifically, the research is focused on answering 3 questions: (1) what are users’ perceptions about their LSPs’ coordination, (2) what coordination behaviors are the LSPs most and least successful in, and (3) what factors are affecting LSPs’ coordination.