Sök:

Sökresultat:

12220 Uppsatser om Material transport - Sida 3 av 815

Fordonsgas ur gödsel och vall

AbstractThe dependency of fossil fuels in the transport sector causes large emissions of carbondioxide. This problem can we reduce by using vehicle gas from digested solid manure and leftover of pasture. I have studied the potential for this in the county of Västernorrland. Thepurpose is to investigate how much vehicle gas that can be extracted.One central, large scale digestion and upgrade plant should be placed in Härnösand. Theamount of pasture and manure that is economical and practical available is enough to produce2,7-3,5 millions Nm3 vehicle gas.

Patientsäker intrahospital transport av intensivvårdspatient

Bakgrund: Den intensivvårdskrävande patienten är många gånger i behov av transport utanför intensivvårdsavdelningen för diagnostiserande undersökning eller behandling. Transporten är riskfylld då patienten kräver komplicerad utrustning och avancerad medicinsk behandling. Studier visar att patientsäkerheten ökar om policydokument används vid transportprocessen.Syfte: Studiens syfte var att kartlägga antalet policydokument som reglerar intrahospital transport i Stockholms län och jämföra dem med en guideline.Metod: Urvalet bestod av policydokument från 11 intensivvårdsavdelningar i Stockholms län. Metoden utgjordes av deskriptiv dokumentinnehållsanalys.Resultat: Sex av elva intensivvårdsavdelningar i Stockholms län hade policydokument som reglerar intrahospital transport. Policydokumenten hade fem gemensamma huvudämnen: Riskbedömning, bemanning, förberedelse, övervakning och utrustning vilka överensstämde med dem i guidelinen.

Vätning på mikroskala

Individual cellulose ?bers were studied to identify the transport and absorbtion phenomena as well as the in?uence of drying. A Chalmers University of Technologydeveloped method within ESEM (Enviromental Scanning Electron Microscope) has been used in this study. The results from the laborations gave the following conclu-sions: The transport of water occurs in ?bers in the ?ber wall surface and the lumen.

En studie av ledarskap, organisationsklimat, tillfredsställelse och extra ansträngning på Faiveley Transport Nordic AB

The aim of this study is to examine if the leadership style in Faiveley Transport Nordic Ltd has an impact on the psychosocial climate in the workplace. Henceforth, we have checked if the psychosocial climate influences the feeling of satisfaction that exists in the organization and if this in turn influences the degree of extra effort the employee chooses to impose on his or her task. In order to measure the leadership in the organization we have used the Multifactor Leadership Questionnaire (MLQ). The climate, in turn, has been measured through Ekvalls GEFA. All 125 employees in Faiveley Transport Nordic Ltd got the possibility to attend the survey, 58 participated.

Lindehults handelstr?dg?rd: en fallstudie med fokus p? j?rnv?gens nytta f?r en ?kad marknad

This case study's aim was to strengthen the state of knowledge about how horticultural companies in Sweden used railway transports between 1900s and the 1950s. Economic theories and a micro-historical perspective have been used to analyze the collected source material, and to describe Lindehult's market garden. The investigation is based on document analyzes, qualitative interviews, archive studies and literature studies to evaluate the sources' information through a source pluralistic method. The work has been based on historical source material in the form of payment vouchers, giving an insight into how the company's products were transported by rail across Sweden. Sture Hjalmarsson's diary and interviews have described the case and events that affected the company internally.

Transport av volymelement : Förutsättningar ur ett företags perspektiv

Building with volume element is relatively new and has started to increase more and more. The regulations that exist to regulate and determine how the transports of volume elements are to be conducted are diffuse and not very well adjusted to address the issues with transporting volume elements. Today there are a number of instances that a company has to turn to in order to get a somewhat different view, what regulations say and interpret it in order to know what applies and not applies regarding the transportation of volume elements. regulations. The rules that are in place make it tough for the volume element producing companies to develop and continue to be active on the market.

TOMO Hugglink

Tomo Hugglink (TOMO Skog) is an innovation for harvest and transport of biofuels. The system consists of a truck, a chipping unit and crane mounted on a link and a wood chip trailer. The system works in such a way that the chipping unit is disconnected and placed on the site and wood chips are loaded directly into the wood chip trailer.The aim of this study was:- To examine the performance of the TOMO Hugglink system under different conditions such as the size, placement and quality of the pile.- To calculate the cost per raw ton for two vehicle combinations at different transport distances and to examine the effect of a reduction in set-up time and an increase in load weight.- To identify possible improvements with the TOMO Hugglink system.A time study was conducted within the thesis work to make it possible to determine production and time consumption. In the subsequent economic analysis the cost per tone at different transport distances was calculated for two different lorry concepts. Furthermore the effect of a reduction in set-up time and an increase in load weight was calculated.Under current conditions the utilization of the chipper is low and only 29 % of the total system time is occupied by chipping.

Transportbranschen : Miljöanpassning utan negativa företagsekonomiska konsekvenser, är det möjligt?

This paper is about how transport companies in the future will be able to adapt their activity to an environmentally sustainable development without the effect of negative company economic consequences. Today, the environmental threat is a global problem and knowledge about that effluent of carbon dioxide have a negative impact on the climate is generally known. A transport system that works well is important for Sweden, but the sector has a negative impact on the environment. Regulation and legislation for increased environmental requirements often meets resistance and fear that the work will be hampered by increased costs for environmental work that can lead to an international decrease in competitiveness. The transport companies have outside pressure from the society to do something about the environmental issue, however the companies? customers are not ready to pay a higher price for environmental work.

Slitage på skogsbilvägar vid virkestransporter

This report discusses questions concerning wear on forest roads. The purpose of the work is to investigate if the wear on the roads will decrease when the speed limit gets lower for the trucks that transport the wood. A normal forest road, class B, was used in the study. In total 5000 m3f timber was transported on the road. Data about the road was measured with a profilograph car before and after the timber transport.

Studie i materialrörelser orsakade av fartygsvågor

Examensarbetets målsättning var att studera de materialrörelser som uppkommer i direkt anslutning till stranden genom påverkan av fartygsvågor. Intressant var just att studera sådant material som Daleke et al (1989) finner en överensstämmelse med ? mellan sina iakttagelser och en felaktig version av Hjulströmskurvan ? men även annat material skulle studeras. Arbetet utfördes i Furusundsleden och i farleden vid Lidingö där trafiken av Finlandsfärjor är tät.I farleder som till vattenvolym är begränsade uppstår kraftiga vattenrörelser, sugeffekter förutom de vanliga svallvågor som bryter mot stranden. Dessa båda typer av vattenrörelser påverkar materialet längs stränderna..

Numerisk modell för global transport av spårämnen i atmosfären

The aim of this project was to develop a numerical model simulating the global transport of air pollution. The model currently used by SMHI, the Swedish Meteorological and Hydrological Institute, was intended to perform such simulations at regional scales. However, the usage of a grid based on longitudes and latitudes makes this model work poorly in global simulations. The problem with this grid is that the nodes are concentrated near the North and South Poles. Due to this characteristic, the Courant, Friedrich and Lewy-condition for numerical stability puts a sharp bound on the timestep length.

En studie av sedimenttransport, död ved och kantzoner längs två vattendrag i Kilsbergen - från skog till slätt :

Headwater streams are affected by anthropogenic impacts at multiple scales. One aspect of human impact is sediment transport associated to the abundance of stream structures as large woody debris and the composition of the riparian zone from forest to agricultural landscapes. Riparian buffer zones and stream structures like dead wood are considered as generally important structures for protection against an increasing amount of sediment particles in the water. Hence, in this study these structures were quantified in thirty different stream segments on land and in the water. To measure the transport of sediment Whitlock-Vibert boxes were used in three different types of landscapes; forest, transition and fields. The boxes were left in the stream segments for three months, the taken up and dried and weighed. The results showed that the transition-land in Frösvidalsån had the highest sediment transport. The second highest transport of sediment was in Blackstaån at the fields.

Två nya trailerkoncept för transport av rundvirke hos Stora Enso : en analys av prestation och flexibilitet

The need for roundwood transport capacity vary throughout the year. The need during a period is influenced mainly by the volume transported the period, the number of days during which transport can be carried out, seasonal variations in road conditions and the weight of the roundwood, and the origin of the wood (private forest owners/ forest companies). The need for transport capacity generally increase during the winter and in spring, after thawing. Lack of logging trucks combined with a lack of drivers for these trucks make it hard to hire extra help during periods of increased transport capacity needs. It is also very expensive to keep logging trucks for use only during these periods. In this thesis, two new concepts based on the partial transport by truck tractors have been examined, to find out the possibility for increased performance and flexibility.

ÄTA-arbeten på Trafikverket

?ÄTA-work? (Changes, Supplementary and Retiring works) is more or less common in all construction projects whether it is about houses, roads or railways, in the planning stage, or in the construction stage. For the Swedish Transport Administration, which is the largest purchaser of infrastructure in Sweden, ÄTA-work is a hotter topic than ever.Economists and managers want to draw conclusions on the projects share ÄTA-work, while the project manager is concerned about whether it is possible to draw any conclusions at all as each project is unique in itself and has its own merits. There is a big variation in the amount of ÄTA-work in different geographic districts in the Swedish Transport Administration.This study shows that the Swedish Transport Administration does not have a unanimous approach regarding the management of ?ÄTA-work?.

Trevlig resa!

Kan man förhöja hela upplevelsen av att resa kollektivt genom att förändra textilierna i denna miljö? Hur anpassar man sin estetik till en miljö som är så hårt utsatt för smuts, slitage och skadegörelse? Kan man genom att förändra textilien skapa en bättre relation mellan passageraren och sätet?Textile design for public transport..

<- Föregående sida 3 Nästa sida ->