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5389 Uppsatser om Systematic literature review - Sida 14 av 360
Delta X : Utveckling av värmeväxlare
Stockholms vattenskärning AB in Kungsängen has through the acquisition of a company begun to design and produce aircraft heaters whose origin is early 1970s which follows a high inefficiency in terms of energy consumption and size.The aircraft heater, which is sold worldwide, serves its purpose for customer satisfaction and has done so ever since it was developed in the 70s.Stockholms vattenskärning AB is now investigating the possibility in making the aircraft heaters more efficient, both in terms of energy consumption but also on a more efficient design with the belief that it would lead them to an edge in the market. The aircraft heater consists of several main components whose function altogether is to keep passenger aircrafts warm while they are on the ground.This project has been limited to the further development of the heat exchanger package which accounts for the conversion of the hot medium to the fresh air being carried in to the aircraft cabin. Work has been divided into different phases in order to create a better understanding of the project range and to make it easier to divide the various elements in the time available, 10 weeks. These phases are literature review, situation analysis, concept generation, CAD, concept comparison and writing reports.After the initial literature review was made, a fundamental theory was written which is essential in understanding the remaining parts of the project.With the theoretical part as support, measurements and calculations were made on the current heat exchange package in a situation analysis to ensure its operation and efficiency.In the concept generation phase, the collected facts from the literature review was used as the basis for creating a matrix. The purpose of the matrix was to indicate the two most suitable types of heat exchangers to develop four new concepts out of.In the CAD phase the four concepts was drawn up and then described with text and images.The last phase is the concept comparison where a concept selection matrix is used to function as a decision basis for further production at Stockholms vattenskärning AB. The four concepts have been developed based on the current heat exchanger and is gradually changed into a design of a cross-flow heat exchanger constructed out of stainless sections. The purpose of this is to have gradual upgrading of the heat exchanger as an option, in order not to saturate the market..
Energiaspekter på gestaltning : fallstudie Energihuset i Uppsala
This thesis has been carried out at the Department of Urban and Rural Development at SLU Ultuna during the spring semester 2009. The topic of the paper is how energy consumption can be influenced through design and if the conditions for good design decreases when solutions based on energy efficiency are used. The report is divided into one literature study and one part where energy efficient solutions are used in a design. The thesis work has its origin in a project called "Energihus i Uppsala." The planned building will be a center for energy research in Uppsala. The project aims to demonstrate to the public what is currently happening in research related to energy.
Tillämpning av utvärdering inom operativt förbättringsarbete
In the fall of 2014 a literature review and a scientific study of the topic; "... in the extent to which companies in the industry applies the evaluation of continuous improvement? was conducted at Mälardalen University. These studies are the foundation of this thesis.A strategic improvement is often divided into smaller steps of improvements at each hierarchical level from the top down through the organization. But if there is no response system that can confirm the results of these improvements back through the organization it is very hard to see if the improvements really are improvements or just changes and a waste of resources.
Perioperativ överrapportering-En systematisk litteraturstudie
Background: A patient undergoing surgery will meet many caregivers in different settings pre-, intra- and postoperative in the surgical pathway. Lack of communication is a common digression and the handoff is such an occasion. The purpose is to describe current knowledge about the patients´ right to safe care perioperative. The study is a systematic review (pilot). Result: The handoff was informal, unstructured and inconsistent.
Kalvhyddans utformning : påverkan på kalvens hälsa och komfort
This paper aims to, through a literature review, examine how to best design and adapt calf huts to meet the calf's physiological requirements and reduce the infection pressure for enteric and respiratory diseases. It illuminates how the calf relates to different temperatures and climate, which temperature control mechanisms it uses and its ability to perform these regulations, as well as providing a summary of the past decades´ research on the calf huts housing system. These two theory chapters, along with a concluding discussion, provide a better understanding of how to, especially in temperate climates, design the most suitable calf hut, which cater to the calf's both thermal comfort and physical health. The literature suggests that the calf's own temperature control works well to counteract the temperature outside the desired range, and that one of the most important factors rather is ventilation of a calf hut, which reduces moisture and pathogens. The conclusion of this paper is mainly that there is not an obvious way to place and construct a calf hutch and that most design principles contribute to both positive and negative effects simultaneously.
Självskadebeteende hos unga flickor : en studie om sambandet mellan självskadebeteende och kamkamratgrupper och Internet
Self-destructive behaviour is a more and more occurring phenomenon in today?s society and there are mostly young girls who are affected by this behaviour. There are different explanations to why the phenomenon appears. The purpose of this research essay is to give a literature overview of the phenomenon of self-harming behaviour of young girls. Two research questions have been used to study this phenomenon; How can groups of friends contribute to reinforce an identity with the self-destructive behaviour among young girls? How can Internet contributes to reinforce an identity with the self- estructive behaviour among young girls? For the analysis this research essay uses the social constructive theoretical perspective.
Hej Litteraturen! : En studie av ett läromedel i litteraturhistoria ur ett genusperspektiv
The purpose of this study is to examine, from a gender perspective, Utbildningsradions TV-program Hej Litteraturen! in the light of feminist literature studies conducted during the last twenty years. I want to examine if the feminist literature studies have had any impact on contemporary teaching material regarding the question of how much space in time is given to men versus women and which female authors are included in the literary canon. Hej Litteraturen! is a TV program produced in 2010 intended for high school teaching of literature history. By conducting a content analysis in which I divide the study in a quantitative and a qualitative component, I have investigated how much space and time is given to female writers and how they are presented. My analysis draws on use Yvonne Hirdman?s theory of the gender system. The result shows that the female authors get 37 percent of the total reference space and 42 percent of the time-space. The program has sought to describe male and female authors equally and gives them weight and relevance to the sections in a similar manner. In conclusion, Hej Litteraturen! is a tutorial which embraces parts of the criticisms that have existed in historical literature review papers in general and literary history textbooks in particular. Hej Litteraturen! has worked on gender aspects of the program and by picking up contemporary authors as reference points for literary history in the present, the program contributes not only not only in renewing the literary canon, but also in balancing out the dominance of male writers in the history of literature..
Larynxmask eller endotrachealtub prehospitalt ? styrkor och svagheter : Litteraturstudie
ABSTRACTBackgroundWhen faced with an unexpected cardiac arrest the ambulance nurse is in responsible for taking advanced actions to create a clear airway. Two accepted methods for this is endotracheal intubation and application of laryngeal mask.AimThe purpose of this study was to examine the use of endotracheal intubation compared to application of the laryngeal mask in unexpected cardiac arrest.MethodLiterature study with quantitative approach. A systematic search of 21 articles comparing the laryngeal mask with the endotracheal intubation has been made using Pub-Med and CINAHL. A quality review according to Forsberg and Wengström has been made.ResultsLaryngeal mask had a higher rate of successful applications compared with endotracheal intubation. Time for applying the laryngeal mask was shorter in seven out of ten of the studied articles.
Skönlitteraturens roll i svenskundervisningen : Litteratursynen som speglas i läroplanen och motiveringar till litteraturundervisning
The aim of this study is to investigate the view of literature that shines through in the Swedish curriculum for secondary school, Läroplan, examensmål och gymnasiegemensamma ämnen för gymnasieskola 2011. The idea is that this view of literature becomes visible when analyzing the curriculum?s ways of legitimating the teaching of literature and its relation to the use of a literary canon. The analysis compares the phrases from the curriculum regarding the teaching of literature and compares these phrases with the various literary visions that earlier scholars advocate. Based on these comparisons, discussions are raised about the pros and cons of the curriculum's ways of legitimating the teaching of literature and its relation to the use of a literary canon.
Utvärdering av offentlig verksamhet: begrepp kontext, motiv, strategier, användningen och aktörerna
Based on a review of literature on evalution of public activities and in purpose to introduce amore general framework, this study describes a picture of the concept, context, motives,strategies, use and actors in Evaluation as these are experienced outside the field of libraryand information. The background is the increased need for" evaluations in public libaries and aneed for new LIS knowledge about it. The reviewed literature has its origin in differentdisciplinary contexts and the study include contributions from policy studies, sociologi,education research, business administration, philosophy and anthropology. The focus, though,is not placed upon differences in the literature but on similarities.The review is organised in six parts. In the first part a presentation is given of how evaluationsare conceptualized and its meaning in a historical perspective.
SwiftSense Wardrobe
Addressing increasing global environmental problems requires greater resource efficiency, and one way of working towards this is through industrial symbiosis. Industrial symbiosis means that companies collaborate through sharing of resources for collective benefits. The documented benefits of working with industrial symbiosis indicate that there is potential for companies to operate commercially with facilitation of industrial symbiosis. An interesting company to study within this context is Econova. Econova operates within the recycling and gardening industry and has been identified as a possible catalyst for industrial symbiosis.
En brännskadad kropp och vägen tillbaka : En litteratur studie ur ett patient- och närståendeperspektiv
Background: Being subjected to an extensive burn injury affects the victim´s physique, social life and its psyche. A burn injury can be determined as a trauma. Burn injuries often make the patient suffer from pain, anxiety and lack of a social life. Sister Callista Roy´s theory was used to analyze the result of the study. One of her goal is to promote the adaptive function of self-perception.
INVERKAN AV HAVSF?RSURNING P? PROTONERBARA ORGANISKA F?RORENINGARAS EKOTOXICITET
Resulting from anthropogenic carbon dioxide emissions, average surface seawater pH is estimated to decline from today's approximately 8.05 to between 7.78 and 8.03 towards 2100. For ionisable organic pollutants, changes in pH can lead to a change in the degree of ionisation, which could influence the ecotoxicity of a compound by altering its bioavailability. In this study, potential changes in ecotoxicity of ionisable organic compounds resulting from ocean acidification are examined. This is achieved partly by conducting a literature review, analysing existing literature that investigates this relationship. Potential changes are also evaluated by examining marine ecotoxicity data for ionisable organic compounds on the watch list pursuant to Directive 2008/105/EC of the European Parliament and of the Council, as well as on the list of priority substances according to the 2022 proposal for amending the Water Framework Directive (2000/60/EC).
Demokrati och lagprövning - Om rättfärdigandet av en positiv respektive negativ inställning till lagprövning som institution i demokratin
This essay concerns the issue of democracy and judicial review. The main focus is on the justification of both a positive and a negative attitude towards judicial review, and the values these justifications are based on. The analysis is made by textual analysis of four authors with different opinions of the subject matter: Robert Dahl and Jeremy Waldron who has a negative attitude towards judicial review, and Erwin Chemerinsky and Ronald Dworkin who are positive about it. In the analysis an analytic frame is used which consists of different dimensions and aspects of the problem of democracy and judicial review. The study shows that there are important differences in democratic values between a positive and a negative justification of judicial review.
"Anhörigsjukan". En litteraturstudie om hur det är att vara anhörig vårdgivare till en person med Alzheimers sjukdom i hemmet.
The purpose of this literature review is to examine how a relative is affected by and handles the situation of caring for a relative with Alzheimer's Disease at home and to examine how they experience social support..