I dagens samhälle får miljöfrågor allt större betydelse i den offentliga debatten. Dettagör att mer och mer fokus läggs på metoder att begränsa de miljöfarliga utsläppen somförekommer runt omkring oss. Det gäller inte minst fordonsindustrin där stor vikt läggsvid att begränsa avgasemissionerna som fordonen ger upphov till.För att kunna begränsa ett fordons emissioner är det viktigt att känna till motornsemissionsegenskaper vid verklig drift på väg. Detta examensarbete behandlarmöjligheterna att komplettera emissionsprovning på väg med enklare metoder i syfte attskatta och/eller bekräfta dessa egenskaper.Den referensmetod som valts vid undersökningen är prov på ett fordon underdrift påväg, med en emissionsmätutrustning från Horiba. De metoder som sedan jämförts medreferensmetoden är:? Prov på väg med data från motorstyrsystemet? Prov på chassidynamometer? Prov i motorprovcell? Simulering i STARS.Undersökningen visar att metoden att mäta emissioner på väg med data från fordonetsstyrsystem har stor potential för goda skattningar av motorns emissionsegenskaper, förgod skattning av absoluta emissionsnivåer krävs dock att en kalibrerad sensor används.viDe prov som genomförts på chassidynamometer har i denna undersökning inte givitkonsekvent resultat på grund av reglerproblem, och metodens egenskaper har ej kunnatfastställas.Prov i motorprovcell har visat viss potential för skattningar av emissionsegenskaper,men i dagsläget krävs en bättre kunskap om hur i första hand de dynamiskaemissionsegenskaperna påverkas av de termiska skillnader som i många fall existerarmellan prov på väg och i motorprovcell.Det visar sig också att simuleringsprogrammen inte är tillräckligt välutvecklade för attkunna ge bra skattningar av emissionerna vid de dynamiska lastförlopp somkännetecknar drift på väg.

Inom avloppsvattenrening finns ett intresse att mäta olika parametrar, främst i inkommande och utgående vatten, för att få kunskap om hur väl reningen fungerar samt hur reningen eventuellt ska styras beroende på vattnets egenskaper. De vanligaste metoderna för provtagning och analys av avloppsvatten är antingen med fysiska sensorer eller genom analyser på lab. Ytterliggare ett alternativ för att ta reda på egenskaper hos vattnet är att konstruera softsensorer, en sensor som bygger på modellerade värden av den parameter som ska mätas utifrån andra parametrar som mäts med fysiska sensorer.Syftet med denna studie var att undersöka möjligheten att skapa softsensorer för COD, tot-N, tot-P, NH4-N, NO3-N och PO4-P i olika steg av vattenreningen. Skapandet av softsensorer utfördes genom datainsamling, modellering och validering.Datainsamlingen har utförts på en småskalig reningsanläggning på Hammarby Sjöstadsverk i Stockholm. Värden från de befintliga fysiska sensorerna samt analyserade värden från laborativt arbete har tillsammans förbehandlats och använts i mjukvaran SIMCA för att skapa modeller för givna parametrar.

Introduction: First line managers in the public sector, are under a great pressure from both senior management, leadership, politicians and often from a large group of employees. Few studies have been made on the first-linemanagers psychosocial work environment, even though in the studies found that the manager affects their employees work environment.Aim: How first line managers in municipal elderly describes the psychosocial work environment on the basis of demand-control - support model.Methods: The study was conducted through individual interviews with six first line managers. Respondents were recruited through a strategic selection in a medium-sized municipality in Västernorrland. The interviews were conducted using an interview guide. Qualitative content analysis with an deductive approach was used as a method of interpretation of the results.Results: First line managers point out the difficulty in balancing the requirements and several managers also mentioned the importance of having clear role descriptions and objectives.

Quality is the key to a well executed product or service. The construction industry hasn?t highlighted the quality in recent times which have contributed to the construction industry receiving much criticism in the field. The public sees it as an offhanded industry where errors and delays are common.The reason for this is considered to be primarily the lack of time, constant pressure to reduce costs and skills and the ability to communicate between the parties about what the correct quality really means. The industry has begun to realize that it must start setting clearer standards and that there are great opportunities for improvement.This report will give Peab an opportunity to develop their quality work.

In recent years, existing solutions for cooling personal computer CPUs have been supplemented by a new product category, factory sealed water cooling loops. These systems, consisting of a water block with an integrated pump, a fan and a radiator, perform well compared to the air cooling solutions but are less effective than larger, custom-built water cooling systems.This project aims to explore the most important aspects of a factory sealed system and to identify possible cost-effective enhancements of the performance.The most significant differences between the different groups of water cooling loops are the block design and the pumping power. The performance of both categories is also largely dependent on the fan power, but increasing fan power has a large negative impact on the noise level.Both radiator size and fan model choice appear, in tests, to be relatively unimportant, presuming that the noise level is kept constant. The position and direction of the fan, however, has significant impact on both the temperature and the sound level.Water blocks can be designed in several different ways, both regarding the heatsink design and the flow direction. In simulation, flow with the inlet centered above the heatsink result in considerably lower pressure drop and slightly higher temperatures than flow through the block, for heatsinks with fin arrays.Creating a competitive product in this product segment certainly seems possible, as there are performance-increasing changes to be made that seemingly has little impact on the production cost.

Syfte: Syftet med föreliggande litteraturstudie var att beskriva vilka omvårdnadsåtgärder sjuksköterskan kan använda sig av i det trycksårspreventiva arbetet. Syftet var även att granska urvalsmetoden som de inkluderade artiklarna har använt sig av.Metod: Artiklar publicerade mellan 2007 och 2013 söktes i databaserna CINAHL och PubMed. Resultatet baserades på tretton artiklar.Resultat: Resultatet utmynnade i fyra kategorier: 1) Riskbedömning; med användandet av ett riskbedömningsinstrument i det dagliga omvårdnadsarbetet minskade förekomsten av trycksår. Det framkom att sjuksköterskans kliniska blick var viktig för att upptäcka patienter med risk för att utveckla trycksår. 2) Tryckavlastande underlag; användande av tryckavlastande underlag var en viktig åtgärd för att förebygga uppkomst av trycksår.

Background: Long-term stress can lead to reduced health among nurses which can result in impaired quality of care. Stress in nurses' work needs to be studied in order to prevent stress and impaired quality of care. Aim: The aim of this study was to describe nurses' experience of occupational stress and factors that contribute to occupational stress. Method: The method used was a literature review. Results: The analysis resulted in five themes which describe nurses' experiences of occupational stress and factors that contribute to occupational stress.

Background:Incoming medical alarm is a common routine for emergency nurses. Working in these situations may represent a major burden on the individual nurse. Purpose: To investigate emergency room nurses' experiences in receiving medical alerts focused on education, safety, security, skills and experience, and andherence to guidelines. The purpose was also to investigate whether there were any differences in action between the emergency room nurses who had worked longer or shorter period than two years with this.Method:The design was quantitative, comparative and descriptive. Surveys were distributed to 30 nurses who worked in the emergency room at a Swedish hospital.

This study is based on interviews with four managers in public elderly care and four managers in private elderly care. The aim of this paper is to examine how these managers are experiencing their leadership in relation to conflict management, and if the managers leadership differs depending on private or public elderly care. Leadership and conflict management are theories that have been used in order to analyze the empirical findings. Previous research that has been used in the study concerns ?leadership/leadership styles?, ?conflict management?, ?to be active in the private/public elderly care?.

Background:When the patient is critically ill the family is in a vulnerable position. The nurse's role is to support and help the family to find meaning in the difficult situation and to provide realistic hope. Balancing between the patient's and the family's needs is difficult. Knowledge about how nurses experience difficulties in the interaction with family is required in order to grant good care too critically ill patients and their family-members.Aim:To describe nurses' perceived difficulties in the interaction with family-members of critically ill patients.Method:The study is a qualitative literature-based study based on qualitative research. Results: The analysis resulted in four main themes; difficult disunion, environmental constraints, interpersonal difficulties and communicative difficulties.

Hägglunds Drives in Mellansel, Sweden, manufacture radial piston hydraulic motors foremostwithin applications in the industry. These motors have several sliding contacts, one of these, isthe contact between piston ring and cylinder bore. The radial piston hydraulic motors advantageis to produce high torque in very low rotation velocity, this result in that the maximum slidingvelocity between piston ring and cylinder bore, during the whole stroke, is very low. Theconsequence of this low sliding velocity is that the contact between piston ring and cylinderbore, during the whole stroke, is bound to the boundary lubrication regime. This result in, thatthe piston ring is exposed to wear, thus affect the service life of the complete hydraulic motor.To minimize wear of piston ring, it is essential to determine the oil film thickness between thepiston ring and cylinder bore.

Background:Patients with mental disabilities are more prone to somatic illnesses than the general public. Unhealthier lifestyles and side effects of medication might be causes of conditions that lead to diabetes, cardiovascular diseases and premature death. According to the Social Board patients with mental disabilities receive poorer treatment than patients with only somatic diagnosis.Aim:The aim of the study was to describe nurses' experiences to identify, assess and manage somatic symptoms and problems within the psychiatric care.Method:The study is based on interviews with 12 nurses working in psychiatric outpatient and inpatient care. A qualitative content analysis was chosen.Result:The nurses performed nursing through talking, blood sampling and measuring for example blood pressure. They followed up side effects of medication.

Bakgrund: Trycksår är idag en vanligt förekommande vårdskada. Få studier har gjorts gällande trycksår i samband med buklägeskirurgi.Syfte: Syftet var att undersöka trycksårsprevalensen bland patienter som genomgått kirurgi i bukläge och identifiera möjliga riskfaktorer för trycksår.Metod: En prospektiv deskriptiv studie med kvantitativ design. Datainsamlingen utfördes på neurokirurgiska och ortopediska kliniken under nio veckor, vid ett stort sjukhus i mellansverige. Hudobservationer och journalgranskning skedde på totalt 29 patienter. Frågeställningarna besvarades med deskriptiv statistik och analyserades med Mann Whitney U test och Chi2.Resultat: Var tredje patient som genomgått buklägeskirurgi utvecklade trycksår.

Hydropericardium or pericardial effusion (PE) is the accumulation of fluid in the pericardial sac and is often secondary to pericardial diseases or diseases related to the heart. It is unusual with clinically relevant pericardial diseases in cats but pericardial effusion is the most common one. Since PE causes serious symptoms and may lead to death it is important with a quick diagnosis and treatment. PE can be acute and cause cardiac tamponade, which gives severe clinical signs. Cardiac tamponade needs to be treated immediately or else the cat will die from cardiogenic chock. More common is chronic PE where the fluid accumulates during a longer period of time and the pericardial sac stretches.

The main purpose of this Master Thesis has been to investigate issues concerning apple fruit quality in orchards of Äppelriket Österlen. The goal has been to develop a document, for future benefit towards growers and company management in the production of high quality apples.In order to investigate main issues of fruit quality, focus has been on statistics concerning apple varieties, age of the apple trees, new planting, orchard size and growers opinions. Nine growers have been interviewed to investigate opinions and contribution of different growing techniques to increased fruit quality. The investigation showed high age of the trees in production and low rate of planting of new trees. Differences in fruit quality were highest between small orchards. Most growers were satisfied with their fruit quality and with their own measures made to improve it.