Sökresultat:
497 Uppsatser om Limits of stability - Sida 10 av 34
Att optimera samhället inför klimatförändringar : Sårbarhet och anpassning på dagordningen
This thesis examines the ways in which adaptation and vulnerability are framed in national and sectorial policy-documents dealing with expected societal impacts of climate change. By using theories of discourse and ideology, the analysis aims to find and understand important ideas and presuppositions that are explicitly or implicitly expressed in these documents in order to make possible and tangible the institutional production of policy within the potentially far-reaching problematique of climate change adaptation and vulnerability. The analysis shows that there are two main perspectives through which vulnerability and adaptation are framed; one focusing limits to societal robustness; and one contesting the institutional capacity to implement adaptations. The author understands these framings as complementarily optimizing preconceived social and economic relations, something that might, in fact, reduce the response capacity of people..
Regulatorer med styrsignalsbegränsning
This thesis studies the negative impact that control signal saturation may have on a controlled system. Different methods that are used to compensate for this problem are also studied and evaluated. Both sensitivity to disturbances and the effect the method has on the systems'ability to follow a reference signal will be examined. Stability will be discussed, but no conclusions whether the systems are stabilized or not can be drawn. Control signal saturation will lead to a slower behavior in general.
Varför tycker du inte som mig!? : Livsåskådningars struktur, funktion och immanenta konflikt
This report is an attempt to clarify how religious and non-religious views-of-life [livsåskådningar] are created through the collaboration and opposition of religious and scientific elements/ideas. This with the hope of reaching a fruitful result related to the solution of world-view related conflicts, such as the ones existing between science and religion, on an individual and societal level.This is accomplished with the help of two assertions: (1) Mankind has a need to explain its existence and surroundings. (2) Religion and science has their origins in the same seed and aim to serve the same purpose, or function. Together these two assertions lay the theoretical foundations of this report which implies that all humans have an innate need of sustaining a stable world-view.The result of this report is that a final solution to world-view related conflicts are beyond reach as our mental and physical nature limits us. However there are strategies for minimizing world-view related conflicts effect on society..
Utveckling av generell testklient för Nordic Growth Market
Development and accuracy tests of advanced exchange trading systems require well adjusted tools for testing. Aptness of these tools are probable to have a major impact on identification of bugs and verification of new functionality. Identifying erroneous parts and bottlenecks of the trading system is of outmost importance for the exchange as a whole since stability and correctness are two of the determinant factors its viability is measured by. This paper covers how this test-tool was created and the motivation behind the design choices made. The tool was created with the goal to be broad enough to cover the majority of cases that could arise, fast enough to be able to test the trading systems speed limitations (i.e.
Temperature monitoring during transport of test samples
Quality is the main focus in management of all laboratories. Accurate results of the analyses are not only determined by the analytical procedure but also by preanalytical factors. In the total analytical process of clinical specimens, there are many possible preanalytical sources of error. Monetoring of temperature on test samples of the transport boxes is one way to reduce the mistakes in the preanalytical phase.In this study, four laboratories from primary health care were invited to participate. The temperature has been measured on test samples of the transport boxes being delivered to the laboratory.In three cases the temperature remained within the limits, but in the fourth case the temperature varied more than the allowed interval.
Lyftkraftsberäkning för vingprofiler: Virvelpanelmetoden
The problem presented in this report is that of finding a method to calculate the lift force from a single-element airfoil of arbitrary shape. A number of restrictions are used in order to simplify calculations while retaining reasonable accuracy. The problem is solved for the two-dimensional case only and no finite-wing effects are taken into account. Furthermore, inviscid and incompressible flow is assumed. The method used to solve the problem is the vortex panel method, with vortex singularities distributed over simplified airfoil geometry.
I sökandet efter framtidens destinationer : Ur researrangörers perspektiv
Background: The fast growing tourism industry increases the need for new destinations to meet the markets demand. Because of this, destination development becomes a part of tourism development and it can therefore be interesting and relevant to study this phenomenon. It requires consciousness about the destination?s conditions and to what extent tourism can be developed. The study of these conditions can be useful as they are fundamental for future tourism development at a destination.Purpose: The purpose of this study is to describe and analyze which conditions and characteristics a place should have to become an attractive destination.Methodology: This study has been executed from a positivistic point of view and a quantitative approach.
Partialkoefficienter för stabilitetsanalys av betongdammar
I Sverige finns det idag ett stort antal dammar och nära hälften av Sveriges elproduktion kommer ifrån vattenkraft. Höga säkerhetskrav ställs på dammarna då konsekvenserna av ett dammbrott kan orsaka stor ekonomisk skada både i form av minskad produktion och som uppbyggnadskostnader. Dammbrott kan även utgöra risk för skador på människor och omkringliggande miljö samt byggnader.Det finns flera dimensioneringsmetoder för att uppfylla gällande säkerhetskrav på konstruktioner. De tillämpningsvägledningar som används vid stabilitetsanalys av betongdammar baseras på gamla deterministiska metoder med säkerhetsfaktorer. Det arbetas med att ta fram nya tillämpningsvägledningar baserat på sannolikhetsbaserade metoder.
MEASUREMENT OF C-REACTIVE PROTEIN IN CANINE SERUM ON KONELABAUTOANALYZER 20
An inflammatory reaction is induced after release of proinflammatory mediators such asinterleukin 1 and 6 and tumour necrosis factor ?. These mediators stimulate the liver tosuppress the syntheses of albumin and endure the syntheses of acute phase protein forinstance C-reactive protein. The aim of this paper was to perform a method validation on animmune turbidimetric assay to quantify C-reactive protein in canine serum at the laboratory atSkara Animals Hospital, Skara, Sweden. The validation involved evaluation of the assaylinearity, precision, stability and recovery.The method was proved to be linear for both TruLab control and Medinor control.
Skolvalet: en investering i framtiden? : En narrativ studie om föräldrars resonemang kring grundskolevalet ur ett Bourdieu-inspirerat perspektiv
The thesis aims to increase our understanding about parents reasoning about the elementary school choice by studying which factors parents perceive as important during the decision making process and also by giving meaning to Pierre Bourdieu?s concept of capital through the parents perspective. The empirical material comes from seven BNIM-interviews made with parents, which has been analyzed according to the thematic field analysis.The results show that the parents are not especially concerned about making an active school choice. Stability, closeness, friends, rumors, development and adaptability to the reality are the factors that are perceived as the most important in the decision making process. The school choice has a limited meaning as an investment in social capital, from Bourdieu?s perspective.
Utveckling av modellbaserad reglering i kommersiella styrsystem
In industrial control systems PID-control remains the prevalent strategy, also for processes that would benefit from model based control. The purpose of this thesis is to evaluate whether model based control can be readily implemented in an industrial control system. To this end a simulated surge tank with a simulated industrial control system is studied. For evaluation two scenarios with specified objectives are selected.Following a review of LQR and versions of MPC, Predictive Functional Control (PFC) is considered the most suitable for implementation. PFC is a form of MPC developed with industrial applications in mind and therefore has several advantages for implementation in an industrial control system.
Pre-treatment of grain for ethanol production during storage
Ethanol for automotive purposes is an issue much debated and researchers disagree about the benefits of bioethanol. Converting energy-rich crops into ethanol suitable as motor fuel is a complex process and continuous development and improvements of processes and material used are important steps in the work of developing environmental friendly fuels. Grain is usually preserved by drying which consumes a lot of energy. Alternative storage of high-moisture grain in airtight storage systems reduce the energy required to produce bioethanol and studies have also shown that ethanol yields are increased more than 10% in ethanol fermentations of moist grain compared to dry. Airtight storage is often not perfectly airtight so biocontrol agents are necessary in order to preserve the grain.
Autonomi och gemensamma strävanden
The liberal state, it has been argued, must be neutral between different conceptions of the good. Embodying ideals such as fairness and impartiality, state neutrality is intuitively appealing, but working as a restraint for state actions it is somewhat unsatisfactory. People make mistakes about their lives and people live less valuable lives than they could do. To then restrain the state from doing as much good as it can seems just as unappealing as neutrality at first seemed appealing. In this paper, a possible solution to this dilemma is presented.
En analys av kostnadseffektiva metoder för inköp och logistik
This thesis aims to find a more cost effective model for purchasing and logistics at asmall company. The studied company is a BMX (bicycle motocross) and MTB(mountain bike) retailer. The questions to be answered are: How large parties shouldbe ordered and what mode of transportation is to be used? A literature orientation ofthe field was followed by visits to the company, obtaining information from twodifferent logistics companies and interviews of four other companies in the sameindustry. The study shows that it´s difficult to develop an optimum order quantity fora small company since there often are other factors affecting how large amountshould be ordered.
Förskolans lekmiljö : En studie om hur pedagoger tänker om lekmiljöernas betydelse för barns utveckling och lärande
The purpose of my study is to describe how educators think about the play environment, the nature and its importance for the children's development and learning in preschool. The study is based on qualitative interviews with four active educators. The results of the study show that the teachers regarded the children's interests to a great extent when the different play environments were structured. They are also based on different themes that they have seen that the children were interested in, such as the fire station, hair salon or shop and café. Educators designing not only these play areas for different types of play for the children, but the different environments also have a learning purpose. The outdoor environment however attracts greater interest from children, to where they have more space to move freely in and outdoors, there are no limits to the children.