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3026 Uppsatser om Systemsäkerhet - Sida 24 av 202
Ants and termites in small-scale plantain farms in Uganda : a comparison between agroforestry and non-agroforestry farms
This study was conducted in Kkingo district, west of Masaka, Uganda. It compared soil macrofauna abundance in non-agroforestry farms with that of agroforestry farms. The agroforestry farms had participated in the Vi Agroforestry´s program between 1995 and 2006, and continued on their own after 2006, when Vi Agroforestry left the area. The soil macrofauna is important for soil structure and processes that are contributing to soil organ-ic matter decomposition and nutrient mineralization. They are also predators of potential pests.
Glastaket : ett bärande klimatskal
This candidate.?s work includes designing of a house with it.?s structural components andinstallations. The house had to be actual with Building Regulations (Boverkets Byggregler).Beside designing of all the crucial systems necessary for completing of claimed regulations evenan optional topic within building engineering had to be chosen.The task included designing of heating, ventilation, sanitation and electricity systems. Structuralengineering models has been made in compliance with Eurocodes. Materials for facades, floorsand roof were chosen and evaluated.As recessed portion of the work, evaluating of possibilities in designing of a glass roof waschosen.
Positive human to cattle interactions and the possibilities to increase animal welfare, economy and safety for farmers
Cattle production systems are changing to bigger intensified systems with larger numbers of animals per farm and more free range systems while at the same time employing fewer people. Aversive handling has been known to affect cattle production negatively for many years, but lately scientists have started to focus more on what positive effects gentle handling and positive human-cattle interactions may have on beef and dairy production. Fear can cause high stress in production animals and this can contribute to not only reduced production within beef and dairy cattle, but also increased risks for accidents and decreased animal welfare. Therefore, by reducing the fear cattle experience of humans, it could be possible to increase production, decrease accidents and increase the welfare of the animals. Reducing the animals fear and stress can be done by simple means, such as walking and talking calmly around the cattle, associating humans to positive feelings (such as feed) and stroking the cattle?s body regions associated with social grooming.
Energioptimering : Resteffektkylning av mellanlager för använt kärnbränsle (CLAB) Oskarshamn
This thesis is done in cooperation with SWECO Energuide in Växjö. They have been assigned by SKB in Oskarshamn to renew their electrical power supply and the ancillary processing systems in their Central provisional storage of spent nuclear fuel, CLAB. Today in the CLAB facility, the spent fuel is cooled down with water pumps, driven by asynchronous induction motors, where the water is regulated by mechanical valves to the desired flow. After the upgrade, the engines will be powered by AC drives that can control the pumps by changing the rotational speed and thus change the water's cooling effect on the nuclear fuel. In this study, I investigated the interference AC drives causes the feeding network and how to go about averting them.
Identifiering av det logistiska förpackningssystemet En studie av teleutrustningsindustrin
Background: Due to outsourcing, the material flows in the telecom equipment industry have undergone major changes, which in turn has imposed new challenges for packaging supplier Nefab who delivers to the industry. In order to achieve market intelligence, Nefab wants to map the material flows, and investigate possibilities of further reusable logistical packaging systems.Purpose: The purpose of this thesis is to describe the typical features of the logistical material flows in a technically based, rapidly growing industry, and analyze the driving forces and obstacles, which influence the selection of logistical packaging system. Procedure: After developing a theoretical framework consisting of general logistical theories and theories related to logistical packaging, we have interviewed companies in the logistics channel of Ericsson Radio Systems.Results: We have found the main characteristics of material flows in our investigated industry to be Variations in Demand, Focus on Time-to-Customer, and Globalization of Logistics Channels. Regarding driving forces and obstacles in the selection of logistical packaging systems, we have identified Transportation Characteristics, Customer Demands, Quality, Handling & Administration, and Current Packaging System as important factors..
Kommunikationsstrukturens betydelse i planerad organisationsförändring
AbstraktTitel: Kommunikationsstrukturens betydelse i planerad organisationsfo?ra?ndringFo?rfattare: Johan PejrydTermin: Va?rterminen 2014Niva?: MasterAvdelning: Informatik och mediaHandledare: Josef PallasSammanfattning: En studie av kommunikationsstrukturens roll vid planerad organisationsfo?ra?ndring utfo?rdes under va?ren 2014 hos en av de svenska storbankerna med avsikt att fa? ytterligare kunskap om fo?ra?ndringskommunikation. Syftet med studien var att underso?ka informationsdistributionens funktion vid implementeringen av ett nytt arbetssa?tt. Det syftades ocksa? till att underso?ka medarbetares informationsbehov och kommunikationspreferenser.Fem hypoteser sta?lldes upp fo?r att fa? kunskap om antalet kommunikationskanaler som anva?ndes, relationen mellan muntliga och skriftliga ka?llor, samt enhetligheten dessa emellan.
Det koloniala arvet och ekonomisk utveckling - En ja?mfo?relse mellan franska och brittiska kolonier och kolonisationens olika mekanismer
Kolonisationen har format ma?nga la?nder, men i vilken utstra?ckning? Detta a?r ett aktuellt a?mne eftersom kolonialism fortfarande finns idag. I den ha?r uppsatsen underso?ks da?rfo?r kolonisationens pa?verkan pa? ekonomisk utveckling. Med hja?lp av tva?rsnittsdata och OLS-regressioner visar resultatet att brittiska kolonier i va?rlden, relativt franska kolonier, i genomsnitt haft ho?gre BNP per capita a?r 2000 och att detta tycks bero pa? skillnader i humankapital, demokrati och institutioner.
Arbetsmätningssystem på Scania Vehicle Service Information : En analys av nuläget samt framtagande av rekommendation för framtida utveckling
Scania CV is one of the world's largest truck manufacturer. It is not only the directproduction of vehicles and methods that are important for Scania but also the servicemarket handling spare parts, repairs and workshops. The department Vehicle ServiceInformation construct standard times through work measurement for particularworks in the workshops. The software application STAM is used in the servicemarket to create and store standard times which then are exported to theworkshops' own systems.The purpose of this master thesis is to analyse and evaluate the internal workmeasurement system that includes standard times and the software STAM. Also,based on external analysis and benchmarking of other systems suggest appropriatefuture development within the area for Scania Vehicle Service Information.In order to perform the investigation, interviews and studies have been doneinternally at the departments that are involved in work measurement as well asexternally at Scania workshops.
Elektronisk motorstyrning för ottomotorer
The combustion engines in today?s vehicles are getting more and more advanced and there are increasing demands on that the engines should operate during optimal conditions. Examples of internal combustion engine parameters which may be carefully controlled are the rate between fuel and air, that this gas mixture is homogenous enough and that it is ignited at the correct moment. Moreover, the requirements of these parameters vary depending on, among other, engine speed and load. To meet these requirements in all occurring operation conditions, it is required that many subsystems work together.
Industriella kundrelationer i teori och praktisk tillämpning
The purpose of this master?s thesis is to contribute to the development of business relationships between a supplier and its customers. The research area and research problem was further developed into three research questions. The research questions concerns the following subjects: the substance of business relationships and dimensions within relationships management that can be used in order to contribute to the development of a company?s business relationships.
Soil carbon, pH and yield development in a long-term humus balance trial
Agriculture has to be performed in a sustainable way in order to sustain high yields and to support a globally growing population. Functional soil properties are fundamental for high yields and in order to achieve good soil conditions sustainable management is a key. Loss
of soil organic material and increased soil acidity are problems associated with degradation of soils and hence less sustainable agriculture. In this thesis, the effect of different agricultural systems on soil organic matter, pH and yield was examined. The systems examined are a cereal system with straw removal or returning and a ley system, all with different nitrogen levels.
Employee Referral Vad driver ansta?llda att rekommendera potentiella medarbetare till en tja?nst? : - Fo?r fo?retag med rekryteringsbehov.
Problem: Fo?r att skapa ett starkt employer brand ska arbetsgivaren inneha positiva associationer hos potentiella medarbetare, vilket bidrar till att mindre resurser kra?vs fo?r att finna den efterfra?gade kompetensen. Da? en rekommendation handlar om att yttra sig fo?rma?nligt blir betydelsen av medarbetares rekommendationer viktig fo?r fo?retagets employer brand. Resultaten av att anva?nda sig av medarbetares rekommendationer i rekryteringsprocessen a?r ka?nt inom forskningen.
Remburser och andra säkerhetsarrangmang vid internationell handel
AbstractWe live in a world today that is characterized by the Internet. We can get hold of people on the other side of the globe whenever we want and we can purchase what ever we want, from who ever we want, anytime we want. This development has made it important to find systems of dealing with the payment in a safe and secure way, both for a private person as well as for a company, when you do transactions with people far away, and those systems is the core of this essay. As a private person you sometimes need to transfer money to family members who live abroad and you can then use clean payments. This means that banks all over the world has systems which makes it easier when their customs wishes to transfer money abroad.
Underha?llet i en vindkraftpark : En utredning om behov och kostnad
Denna rapport a?r en del av en sto?rre fo?rstudie som handlar om lo?nsamheten i en liten vindkraftsanla?ggning besta?ende av tre vindkraftverk placerade pa? O?land. Syftet fo?r denna del a?r att underso?ka kostnaden fo?r underha?llet, olika underha?llsstrategier och lagerha?llning. Rapporten beskriver a?ven de olika komponenterna i ett vindkraftverk, vilka fel som intra?ffar samt hur ofta de intra?ffar.
Metodutveckling för planering och genomförande av dikesrensning med moderna metoder
?Development of methods for the planning and implementation of ditch clearing with modern methods?, is a long title for an exam work but that is what this report describes.
In Sweden, we have a limited area available, and with the present development with increasing market oil prices, and enormous forces on the renewable energy sources, we need every hectare possible to protect the output of the forests.
So with this in mind, many people are now considering how to increase the production of the forests that are already available. A part of production increases is to manage the existing forests, and not to allow this area to go to cultivation or become marshland.
We manage our forests in a way that benefits the environment, and we consider that our working practice over the years has shown us to be correct and well functioning.
A part of our way of producing forests is to ensure that we have functioning drainage systems in the forest holdings which we administer. The responsible at Holmen Skog requested a good method to make inventories of the drainage systems of Holmen forests.
This Degree Project is about ways to identify and implement drainage systems with modern methods. It deals with authorities regulations, and how they operate in different counties.