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322 Uppsatser om Ear protective devices - Sida 21 av 22

Stadsodling : möjligheter och begränsningar

Urban farming can be viewed in several contexts. The first part of this work brings up the beneficial effects of farming on our physical and mental health, knowledge as well as on social life in cities. The introduction of gardening in schools can contribute to an increased awareness on both agricultural practices and importance as well as ecological processes. It can also be used in teaching of other subjects. Farming can also contribute to improving the household economy, and the economy on a municipal or national level.

Monitoring and pest control of Fruit flies in Thailand : new knowledge for integrated pest management

Fruit flies (Tephritidae) are serious pests that cause enormous losses for farmers in many countries. The frequent use of insecticides in controlling fruit flies in fruits and vegetable has not resulted in sustainable management of the pest. Problems associated with this complete reliance on chemical control are many residues of insecticides in crops, health problems for farmers, contamination of water and soil, insecticide resistance development and decrease in natural enemy populations. The implementation of control measures that do not imply an added burden to the environment and/or the farmers is urgent. More knowledge about the ecology of fruit flies is the basis for finding new and better ways to control this pest.

Mätning av partikelmassa i avgaser från en dieselmotor

This master thesis was a continuation of a previous study in the diesel exhaust characterization, which is part of the academical work embedded in the EMIR-1 project. The main objective of this thesis work was to finish the installation and make the proper modifications of the particulate mass measuring system located in one of the engine test cells at KTH, in order to be able to measure the mass of the particles from the exhaust of diesel engines.This experiment requires a diluted flow sample from the exhaust that should be sent to the device that makes possible the measurement of particle mass, called TEOM. In the first stage of this project, the objective was to study and make the proper modifications in the existing KTH diluter because there were several problems to obtain a constant dilution ratio from it during tests.This modifications were made and it resulted in a great improvement in the maximum inlet and outlet flow that this diluter can handle. Therefore another modification is proposed for controlling the inlet exhaust flow so it will be possible to regulate the dilution ratio and make it constant along a wide range of engine loads and speeds.The second and most important stage was to make particulate mass measurements possible by analyzing the frequency signal from the TEOM device. The idea was to obtain the frequency of oscillation from the tapered element in the TEOM, and therefore with the proper correlations, be able to predict the particulate mass concentration in the exhaust flow from the engine.An electrical problem in the TEOM circuit was detected and corrected, so the signal that carries the frequency from the TEOM can be analyzed properly.

Smartphones som ny marknadsföringskanal : Nya möjligheter inom precision, segmentering och relationer

Syfte: Syftet med den här uppsatsen är att öka förståelsen för hur samhällets och teknikens senaste utveckling har bidragit med nya marknadsföringskanaler och vad detta innebär för företags marknadsföringsstrategier. Med detta syfte som utgångspunkt har tre forskningsfrågor formulerats för att avgränsa forskningen än mer:Hur kan smartphones som marknadsföringskanal hjälpa företag att precisera sin marknadsföring till kunden?På vilket sätt har den nya mobila tekniken, i form av smartphones, påverkat företags segmenteringsmöjligheter?Hur kan ett företag använda sig av smartphones, som ett verktyg för att hantera kundrelationer?Metod: Uppsatsen är resultatet av en kvalitativ studie med en huvudsaklig induktiv inriktning. Primärdatainsamlingen har skett genom kvalitativa semistrukturerade intervjuer.Slutsats: Efter att ha undersökt detta ämne har vi dragit slutsatsen att valet av smartphones som kanal kan hjälpa företag att precisera sin marknadsföring genom att telefonen är tillgänglig och personlig för kunden. Därför menar vi att kunders integritet och acceptans kommer att vara avgörande faktorer och viktiga att beakta.

Viltets inverkan på vegetationsutvecklingen i en Sydsvensk skogsföryngring :

Herbivore impact on the Swedish forest has under a long time been a common subject of debate. There are many different opinions depending on what direction the forest owner has with his/her forest. Populations of moose and roe deer have increased significantly in Sweden during the last decades. The purpose of this study is to get a full picture of the herbivore impact on the regeneration areas. The field work was done once a year for seven years (1999?2005).

Markexploateringsfrågor i gruvsamhällen : En studie av minerallagen, miljöbalken och plan- och bygglagen

Det här examensarbetet tar upp en del av den problematik som uppstår då gruvverksamheten kommer in på tättbebyggt område. Arbetet består av att studera stadsomvandlingen av Kiruna och Malmberget utifrån tre valda problem: en samhällsekonomisk bedömning, miljöskada samt skyddszon mellan gruva och samhälle.Avsikten med den samhällsekonomiska bedömningen har varit att belysa huruvida de prövningar som görs för gruvverksamheten tar hänsyn till de ekonomiska konsekvenser som en statsflytt innebär.  För gruvan görs förvisso en ekonomisk bedömning av fyndighetens förutsättningar, men inga beräkningar på hur mycket intrånget som en avveckling och flytt av bebyggelse och infrastruktur innebär.Det andra problemet handlar om rätt till ersättning för miljöskada för dels isoleringen av östra Malmberget och dels randbebyggelse till gruvan. Störningen som förekom i östra Malmberget var en isolering av området gentemot övriga områden på orten, medan randbebyggelsens störningar utgjordes av förfulad omgivning, buller och skakningar samt en oro till följd av gruvverksamheten.  De störningar som inte ansågs vara orts- eller allmänvanliga kunde ge ersättning för miljöskada. I undersökningen så kom vi fram till att isoleringen av bebyggelsen i östra Malmberget inte var orts- eller allmänvanlig, däremot så ansågs störningen för randbebyggelsen vara det, dvs. rätt till ersättning förelåg inte.Det tredje och sista problemet tar upp en skyddszon mellan gruvan och samhället.

Möjligheter och hinder för att utöka omfattningen av RoHS-direktivet

The RoHS Directive was introduced in order to restrict hazardous substances in Electrical and Electronic Equipment, EEE. It currently restricts the use of six hazardous substances/compounds; cadmium, lead, mercury, hexavalent chromium, PBB, and PBDE. The RoHS Directive currently includes category 1-7 and 10 in the categories of EEE listed in Annex 1A to the WEEE-Directive (Waste of EEE). The aim with the report is to investigate and elucidate prospects and obstacles to increase the scope of RoHS. This report mainly considers the inclusion of product categories 8 (Medical Devices) and 9 (Monitoring and Control Instruments).

Internationellt Adopterades Psykiska Ohälsa under 16-26 års åldern - en hemeunetisk narrativ text analys av tidigare forskning

Problem area of this Bachelor thesis is the mental illness of internationally adopted at the age of 16-26. Our study focuses on a compilation of previous results from positivistic researches in the first question formulation. In the second and third question formulations a narrative text analysis, through hermeneutically interpret risk and prevention factors, is carried out for the life of internationally adopted that can lead to mental health/illness and how they apprehend to be adoptees. The purpose is to get a comprehensive understanding at individual, group and society's view of their lives. Further intention is to interpret the material for possible approach angles on further research.

Arbetsmiljöutredning med Åtgärdsförslag för Svetsare vid Svetsning i Koppar : ABB Transformers Plåtverkstad

Examensarbetet har utförts vid ABB Power Transformers i Ludvika i plåtverkstaden, där stora transformatorlådor svetsas ihop. Tillsammans med vår handledare på företaget utformades ämnet för examensarbetet att bedöma luftkvalitet och arbetsmiljö vid punktsvetsning i koppar. Det fanns misstanke om att exponeringen för koppar var hög och en utvärdering av luftkvaliteten behövde därmed göras. Ingen tidigare exponeringsmätning vid svetsning i koppar har genomförts i plåtverkstaden. Syftet med examensarbetet var att utvärdera och komma fram till tre åtgärdsförslag för att skapa en bättre arbetsmiljö vid punktsvetsning samt att begränsa exponeringen av svetsrök som bildas vid svetsning i koppar. Tre åtgärder var företagets önskemål.

Innovationssystem för medicinsk teknik i Stockholm : En undersökning av centrala omständigheter för organisatorisk samverkan

Introduction In order to foster innovation of medical devices within the healthcare sector, a collaboration project, PUSH, has been initiated including the hospitals managed by the Stockholm County Council. The collaboration aims to capture ideas from employees and turn them into so called ?high-practice? products as well as facilitate the possibilities for medical device companies to try out their products in the settings of healthcare. Collaborations for innovation, comparable to the PUSH project, can be found in both Swedish and foreign regions, but some of them fail to survive due to obstacles affecting the progress of each collaboration. Avoiding the same destiny will be a challenge to the PUSH project.Purpose The purpose is to search for factors affecting organizational collaboration concerning innovation systems for medical device development.

Ursprungs- och kvalitetsmärkningens betydelse för konsumentens val av krukväxter : en studie om mervärdet av Mäster Gröns co-branding med Svenskt Sigill

This essay has been made on behalf of the co-operative society Mäster Grön, which is selling ornamental plants to retailers in Sweden. The aim of this study has been to find out what added value Mäster Grön gets from their co-branding with the Swedish Seal of quality. The main topic of discussion was; how much value added does this co-branding give to Mäster Gröns pot plants? Are there differences from a customer point of view in value added between a garden center and a retail store? How much weight does the costumer put on the branding when buying a plant? Does the customer know what the values of Mäster Grön and Swedish Seal of quality mean? Two questions of lesser worth were asked to the consumers about what they thought about the protective plastic around the plant, and if they were interested in getting more information about the origin as well as the method of production of the plant. The study was divided into two parts, one in which customers were observed and one where the customers answered a survey.

Evaluation of indirect blood pressure measurement, plasma endothelin-1 and serum cortisol in clinically healthy horses

Equine metabolic syndrome (EMS) it?s a clinical condition that includes obesity, regional adiposity, insulin resistance (IR) and laminitis. A similar syndrome exists in human medi-cine, the metabolic syndrome (MS), were systemic hypertension also is a prominent fea-ture. The systemic hypertension seen in humans with MS is partly due to a vascular endo-thelial dysfunction with an enhanced endothelin-1 (ET-1) mediated vasoconstriction. There are indications that systemic hypertension might be a feature in EMS as well but if ET-1 is involved in the development of the systemic hypertension in horses is not known.

Portabla enheter : Hot, risker, sårbarheter, lösningar och skyddande motåtgärder

Detta examensarbete har utförts på uppdrag av Försvarsmakten. Arbetets målsättning är att undersöka hot, risker och sårbarheter som portabla enheter kan orsaka eller bidra till inom en organisation. Bärbara datorer med operativsystemet Windows och Mac, samt surfplattor och smartphones med operativsystemet Android, iOS och Windows Phone är de portabla enheter som är utvalda att ingå i denna rapport. Vidare diskuteras förslag på hur man kan förebygga olika säkerhetsrisker. Rapporten tar även upp dagens BYOD-lösningar (Bring Your Own Device).

How to build a rein tension meter

A large part of the interactions between horse and rider during horseback riding takes place through the reins and the bit and devices for measuring the tension on the reins, rein tension meters, has fairly recently been developed. To safeguard the welfare of the ridden horse riders need to be aware of the rein tension they apply and actively work to decrease it. Furthermore, there is a need to develop the study of rein tension through new techniques and refined analysis procedures. A good-quality rein tension meter should be small in size, sensitive, durable and as accurate for light rein tension as for strong forces. Rein tension meters used in research on horse and rider interaction commonly depend on strain gauge technique for generating rein tension data.

Utnyttjandet av ligghallar hos dikor och kvigor av köttras under vintern :

Cattle used for meat production can be held outside all year round and due to the legislation they should have access to shelters or other buildings for protection against the elements giving them a dry and clean bedding. There are different opinions concerning their need of protection and the question about necessity of shelters for cattle is of current interest due to a less profitable economy in meat production and the investment costs for shelters. The aim of this study was to acquire more knowledge about the natural behaviour of cattle concerning their use of shelters. The basis of the study was a series of questions regarding when animals choose to stay in shelters, if shelters were used less when they had access to protecting vegetation, how temperature and weather conditions affected the use of shelters and the influence of distance between shelter and feed. Behavioural studies was conducted at five different farms where six groups of suckler cows and heifers of following breeds and crossbreeds were observed; Aberdeen Angus, Charolais, Hereford, Scottish Highland Cattle, Simmental and the Swedish breeds SKB and SRB.

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