Filtyp
Ett viktigt moment vid tillverkning av kartongmaterial till livsmedels-förpackningar är laminatorn. I laminatorn täcks råpappersmaterialet av smält polymer i det så kallade nypet. Nypet i sin tur består av en stor kylvals och en mindre gummiklädd nypvals. Genom att styra kraften som verkar på nypvalsen kan kontakttrycket i nypet regleras. Vinkelhastigheten med vilken nypvalsen roterar är stor och
Nature provides us with a vast source of inspiration. However, given industrial designers' open-mindedness and inquisitiveness, a surprisingly limited set of nature-derived symbols continues to be popular in this creative discipline. Rather than designing products mimicking nature, it is probably more rewarding designing them based on the natural principles leading to its growth and form. However,
Rå biogas är varm, mättad med vatten och innehåller små mängder av korrosiva spårämnen när den lämnar rötkammaren. I detta skick kan gasen inte levereras till uppgraderingsenheten som tar bort koldioxid, vattenånga och andra föroreningar för att leverera biometan som uppfyller fastställda kvalitetskrav. Den höga fuktigheten kombinerat med reaktiva ämnen leder till okontrollerad kondensation och koRaw biogas leaving an anaerobic digester is warm, saturated with water vapor, and contains small amounts of corrosive trace compounds. In this state, the gas cannot be fed directly to an upgrading system, where carbon dioxide, water vapor and other contaminants are removed to produce biomethane that meets a predefined quality. High humidity combined with reactive species promotes uncontrolled cond
Projects with the objective of introducing Finite Element Analysis (FEA) into the early phases of the design process have previously been carried out at the Department of Machine Design, see e.g. the Doctoral thesis by Burman [13]. These works clearly highlight the usefulness of introducing design analysis early in the design process. According to Bjärnemo and Burman [10] the most significant adva
The Swedish Stroke Register (Riksstroke) was founded in 1994. Riksstroke includes registration of acute stroke, with a follow up after 3 months and 1 year. The Stroke policy and quality register research group has several ongoing projects based on data from Riksstroke, and in many studies also using data record linkage to other national registers and data bases. The thesis of Teresa Ullberg explThe Swedish Stroke Register (Riksstroke) was founded in 1994. Riksstroke includes registration of acute stroke, with a follow up after 3 months and 1 year. The Stroke policy and quality register research group has several ongoing projects based on data from Riksstroke, and in many studies also using data record linkage to other national registers and data bases. The thesis of Teresa Ullberg expl
Since 2003, Kamikatsu in Japan has established a sustainable zero-waste practice that has achieved a recycling rate exceeding 80%. By exploring how the community has shaped itself around the zero-waste concept, this paper aims to enhance our understanding of zero waste in practice from a universal design perspective. Interviews and photo documentation were used to gather data. The zero-waste conce
A climatisation controller for a car with multiple objectives is developed, implemented and tested in simulations. The design focuses on electric cars and their specific characteristics. In this context the goal has been to fulfil common comfort and safety standards while having a low energy consumption. The main idea of the control in order to achieve this is to use a simplified model predictive
This report is part of a Master Thesis Project in Mechanical Engineering with Industrial Design at the Faculty of Engineering LTH at Lund University. The project was performed in collaboration with Hammarplast Consumer Ab, a Swedish company founded in 1947 manufacturing household items in plastic. Hammarplast Consumer Ab is part of the Orthex group, which is the leading Nordic company within t
For range, velocity and angle measurements, radar is a common technique to use, be it in the automotive industry, defense industry, or for medical purposes. Radars can achieve accurate measurements while also being unaffected by weather conditions such as rain, fog, or backlight. In many use cases, it might be necessary to use several radar units, which in turn allows for the possibility of causin
The core objective of this project was to design a controller for a drone (or quadcopter) that would allow the drone to keep a target in the center of a video filmed by a camera mounted on the drone. This was done by controlling the pitch of the gimbal, on which the camera was placed, and the yaw of the entire drone combined with using an image recognition program that could identify the target. F
A general method for modelling reflection in a multilayer structure is developed. This is used to simulate how a Gaussian Ti:sapphire femtosecond pulse reflects off of a periodic SiO2/TiO2 dielectric stack at normal incidence. The method is based on a transfer matrix approach combined with the fast Fourier transform in MATLAB. Both a simple Bragg reflector and a linearly chirped mirror is investig
