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Improving a plant’s operations by applying lean manufacturing on the material flow and layout design

Toyota Motor Company förändrade världen med sitt produktionssystem. Genom att ta bort aktiviteter som inte adderade värde till produkten, kunde företaget bli agilt med korta ledtider till kunden och till en låg produktionskostnad. För att bli konkurrenskraftiga tvingades företag världen över förändra sina produktionsprocesser och en västlig variant av Toyotas produktionsfilosofi uppstod. Denna varToyota Motor Company changed the world with their production system. By removing activities in the manufacturing process that were not adding any value to the product, the company could become agile and offer products to the customer with short lead time as well as to a low cost. Companies in other countries needed to change their manufacturing processes in order stay competitive and a western var

Interspecific competition affects spore germination and gametophyte development of mosses

Even though protonemal development of bryophytes has been well studied, it remains unknown whether interspecific competition among mosses species affects their early growth and development. This study evaluated the effects of interspecific competition on in vitro germination and gametophyte development between each pair-wise combination from six common moss species: Atrichum undulatum, Bryum argen

Unga män och maskuliniteter

The environment surrounding us affects our sense of ourselves, although it isn’t something static or permanent, but rather predetermined by our perception. What we wanted to explore with this study was how men were influenced by their environment in relation to their identity development, and in what way they felt social pressure from the society. Therefore our purpose of the thesis was to investi

Kontroll av skötseln samt skötselplanerna för naturreservaten Linnebjer och Fågelsångsdalen

Naturreservat – områden som behöver vård och omsorg Ett naturreservat är ett skyddat naturområde som många gånger bjuder på varierande och vacker natur. Kanske har du någon gång besökt ett reservat och strövat i lövskogen, tittat på fåglar eller kanske fikat på ängsmarken. Vad du troligtvis inte tänkte på då är hur mycket vård och omsorg som faktiskt kan ligga bakom ett välskött naturreservat. FöThe aim of this study is to examine how the two nature reserves Fågelsångsdalen and Linnebjer are being maintained. Fågelsångsdalen has 16 different management areas whereas Linnebjer has 12. My observations for each of these areas took place out in the field with the help of each management plan and a map of the area. The current status of the different management areas is compared to the managem

"Ett förändrat samhälle" - en kvantitativ studie av föräldrars syn på att hantera och förebygga stress hos barn

It´s a general opinion that stress among children is something that has increased (Stressforskningsinstitutet, 2015). This study aims to investigate opinions among parents about their knowledge in the subject. The study also aims to look at strategies parents use in their everyday life to prevent stress in the family, and how competent parents feel to protect their children against stress. A quest

The Effect of Exposure to Microplastic Particles on Baltic Sea Blue Mussel (Mytilus edulis) Filtration Rate

This study sought to investigate the effect of microplastics on Mytilus edulis’s ability to filtrate water. The mussels were sampled at Hanö bay located in the Baltic Sea, and were transported to a controlled environment. The mussels were exposed to three different solutions, one containing a concentration of 1 000 Microbeads (diameter 10 μm) per liter, one containing the same amount of plastic be

Relatedness and competition between caterpillars of Maculinea alcon within host plants

Competition between related caterpillars on host plant The Alcon Blue is a butterfly with a parasitic lifecycle. The butterfly starts its life on the Marsh Gentian were the caterpillars feed on the seeds within the flower bud. Several females lay eggs on the flower, which could mean that related caterpillars could potentially compete for the resources within the flower bud as there is a limit to

Household registration system and private enterprise’s hiring policy in Shenzhen, China

The purpose of the thesis was to examine how household registration (Hukou) system affects private enterprise’s hiring policy in Shenzhen, China. In addition, this thesis aimed to found out what make Shenzhen different than other city if Hukou play less important role in Shenzhen private company’s recruitment process. In order to reach this topic, this thesis adopted Taste for Discrimination Model

Kontroll av skötseln samt skötselplanerna för naturreservaten Linnebjer och Fågelsångsdalen

Skötselplaner – långa och tråkiga, men viktiga! De flesta av oss tycker nog att det är härligt att ge sig ut i ett naturreservat och strosa runt – uppleva de många typer av växter och djur som området erbjuder. Kanske får man se både fåglar, däggdjur, insekter och med stor sannolikhet får man vandra i både skog och äng. Naturreservat har detta gemensamt – de erhåller en stor variation av naturtypThere are a number of reasons to form a nature reserve - to preserve and promote biodiversity and to assure areas for outdoor life are two of them. To be able to maintain these values, it is important that an adequate management plan is established for the area in question. I have examined two nature reserves in the county of Lund, Sweden – Fågelsångsdalen and Linnebjer. Both of these reserves con

Robust Security Updates for Connected Devices

We are emerging into the IoT (Internet of Things) era as the IoT market is quickly increasing, giving us connected devices everywhere, from personal accessories to smart homes and even whole city infrastructures. The manufacturing companies need to stay competitive in this rapidly evolving market, so they need to minimize the price and optimize the Time to Market (TTM). When new versions of a prod

Ramsvikslandets Naturreservat; en utvärdering av skötseln, kopplat till hotade gentianaväxter

Liten blomma i backen, formad av bondens blod, svett och tårar En bit innan semesterparadiset Smögen, ligger en liten ö med mångårig historia. Här har marken odlats under många hundra år. På sommaren slåttrade man gräset, bar det till höbalar, och korna betade lojt på med utsikt över klipporna och havet. Störningarna var stora på gräsmarkerna, lien skar av växterna och korna betade, för många växWith the gain of productivity in farming the last decades, there has been great loss in species richness. Many plant species that have evolved and adapted alongside to traditional farming and benefiting to the managed land use, are now disappearing in great numbers. Three thirds of Sweden’s endangered plant species are those who thrive in managed grasslands like meadows and grazing areas. The trad

När livet inte längre känns värt att leva- en kvalitativ intervjustudie om sex professionellas syn på orsaker till suicidalitet

Suicide among young people are a serious problem worlwide as well in Sweden. The main purpose with this study was to examine and understand how suicide can be explained- to identify possible causes to suicide behaviour among young people. Through a qualitative approach, I interviewed six people who are working with young people in different ways. The main- result from this study shows that suicid

Domstols riskbedömning - ett alltför stort risktagande? En studie av domstols bedömning av risk för återfall i allvarlig brottslighet vid omvandlingsprövning av livstidsstraff

Genom införandet av lag (2006:45) om omvandling av fängelse på livstid (OmvL) skapades ett nytt frigivningssystem för livstidsdömda genom en rätt att ansöka om omvandling hos Örebro TR efter att ha avtjänat tio år av det utdömda livstidsstraffet. Omvandlingsprövningen består av fem kriterier, varav ett innebär en bedömning av om det föreligger risk för återfall i allvarlig brottslighet. Om konkretBy the passing of the Act (2006:45) on conversion of imprisonment for life (OmvL), a new system for the release of a prisoner serving life sentence was created, by enabling an entitlement to apply for conversion after having served ten years of the imprisonment. The adjudicate consists of five conversion criteria, one of which involves an assessment of whether there is a risk of a recidivism into

Arbetsrättsliga villkor i offentlig upphandling - Särbehandling av inhemska leverantörer samt alternativa kontraktsvillkor

Denna uppsats utreder två förslag på ändringar i den svenska lagstiftningen om offentlig upphandling som presenterats av utredningen "Upphandling och villkor enligt kollektivavtal". Utredningen föreslog, bland annat, att det skall vara möjligt för upphandlande enheter att ställa mer långtgående arbetsrättsliga krav på inhemska leverantörer än de som använder sig av utstationerad personalThis thesis studies two proposed changes in the Swedish public procurement legislation put forth by the government inquiry, "Upphandling och villkor enligt kollektivavtal". The government inquiry suggests, among other things, that it should be possible for contracting entities to require higher labor standards by domestic tenderers, than by tenderers that uses posted workers. This negati

Modeling of soot emission for heavy-duty diesel engines in transient operation

The soot emissions from diesel engines are much higher in transient operation than during steady state operation. In this thesis, a method for estimating the soot mass flow emission in transient drive cycles is presented. The proposed method uses stationary emission maps in combination with step responses. Bandpass filters are used to filter the engine torque/power to provide transient detection a

Deriving and implementing a model of the fifth generation Haldex AWD actuator

The objective for this master thesis has been to develop a mathematical model of the actuator parts of the fifth generation Haldex AWD system. The parts to be modeled are the DC-Machine and the pump. Also a model of the elasticity of the clutch has to be derived as well as a model for the hydraulic fluid. These models were then to be implemented in Matlab Simulink. The model was derived by means o

Lean Production - Identification of essential KPIs in a medical production process and design of a visual interface

Introduction: Rockwell Automation needs to understand how a lean company wants to visualize different KPIs. Ambu wants to see the value of using such visualization in their company and the effect it might have.Thus the two parts fulfill each other's needs and are the perfect match. Purpose: The purpose of the master thesis is to identify essential KPIs in a medical production process and desi

Resource reservation and power management in Android

Saving battery time for mobile devices has been a goal for the industry for many years. With the advent of smartphones, reduction of energy consumption is even more important since they consume a lot more energy than the generation of mobile phones before them. Consumers are demanding longer battery life and greener electronics. One way to meet these demands is to reduce energy consumption. In ord

Function of Cerebellar Microcircuitry within a Closed-loop System during Control and Adaptation

The human motor control is both robust and stable, despite large delays and highly complex motor systems with an abundance of actuators, sensors and degrees of freedom. The cerebellum is thought help accomplish this by compensating for external loads and internal limitations and disturbances through adaptation, creating inverse models of the motor system dynamics. The cerebellum does also exhibit

Design and evaluation of a distributed control architecture over switched Ethernet in active filters

The area of power quality has received more and more attention during the last decade. Poor power quality is a growing problem, especially for the industry because it has a negative effect on production efficiency, power consumption and equipment life-span. Active filters are one of the more widespread solutions to these problems. An active filter is often sized and installed to compensate a speci