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52 Uppsatser om HFT forwarder tracked - Sida 4 av 4
Jämförelse av skattat och kört skotningsavstånd
Skotningskostnaden utgör ca 10 % av skogsindustrins totala råvarukostnad. Medelskotningsavståndet har stark inverkan på skotningskostnaden. Detta medför att skotningsavståndet är viktigt att skatta rätt, för bra planering och korrekta kostnadskalkyler. Vid gallring och föryngringsavverkning skattas terrängtransportavståndet subjektivt av SCA:s planerare. Körning under pålastning och lossning räknas inte in i det skattade avståndet, utan sträckan avser den bästa verkliga körsträckan från virkets tyngdpunkt på trakten till avläggets tyngdpunkt.
Däck-mark Interaktion hos skogsmaskiner
The most predominant method for forest harvesting in Sweden is the cut-to-length method based on two-machines, a harvester that fells trees and cut them in a predefined length, and a forwarder which transports logs to a landing area for further transport to a processing facility. New machine solutions have to be much gentler to the ground than today?s machines. To be able to develop a forestry machine that preserves the terrain requires a proper understanding of the interaction between tire and soil.The goal of the project is to contribute to the existing knowledge of forest machine tire-soil interaction and to develop a tire-soil model that enables dynamic simulations of forest machines operating in rough terrain. The modeling has especially been focused on the interaction between tires and soft ground.A comparison of theoretical data of different WES-based terrain interaction models and a comparison test data from a full scale field test is presented.
Flerpartslogistik med fokus på rutter, fyllnadsgrad och miljö
The globalization has increased the trade between different places and countries. Products are now available from all over the world, but this requires transports that have consequences in the environment as well as the economy. New professions are creates that do formality, organize, administrate and implement other businesses transports. Their operations are between the business and customer and they are called logistics companies. The purpose of this report was to study third-party logistics and why more and more companies use this logistics services.
Förändrad aptering av massaved från 3- till 4-meterslängder vid gallring inom Södra : en systemanalys av effekter från avverkning till levererad virkesråvara
The costs of logging and of transportation with truck are dominating the total cost of wood delivered at industry. To support the profitability for the members' forestry the processing and handling with the timber has to be as efficient as possible. Increased length of pulpwood in thinning is one conduct that can result in higher productivity and/or lower costs. The study is scaled as a system analysis with the aim to exemplify the differences between working with 3- and 4-meter as standard length of pulpwood, related to biological aspects, timber receipts, cost of logging and cost of transportation with truck. Important aspects are if the change is technically and biologically feasible and economically profitable.
Ekonomiska konsekvenser av förändrad röttolerans vid Bravikens Pappersbruk :
The competition for Norway spruce pulp wood in Central Sweden increases, forcing the supply-structure of Holmen to face two important challenges. Firstly, it is of the outmost strategically importance to secure the long-term supply of Norway spruce pulp wood to the industries. Secondly, Holmen desires to increase the obtainable volume of Norway spruce pulp wood. This would enable the company to choose volumes in the lower price-segments and thereby decrease the dependency of costly marginal volumes.
As this work shows, one part in managing these challenges could be to lower the quality standards concerning root rot (Heterobasidium annosum).
Facts presented in the work shows that:
1. Technically, the TMP-industry of Braviken can handle a much more rotted pulp wood than that used today, although the cost of refinement increases.
EFFEKTIVARE UTLASTNING FÖR LAGER UNDER HÖGSÄSONG PÅ HUSQVARNA AB
Husqvarna AB operates two warehouses located in the area of Jönköping. The most important task is to manage the large volume fluctuations during the peak season. DHL Exel Supply Chain (DESC) run the warehouses and the domestic transportations is outsourced to DHL Express. A number of forwarder agents are responsible for distributing the export gods. In the present situation a bottleneck occurs at the warehouse loading section, and the consequence is fulfill the time of delivery for all customer orders.
Styrdokumentskonvertering i praktiken : En kvalitativ studie av fem gymnasielärares förhållningssätt till 2011 års styrdokument i ämnet historia
Policy document conversion in practice ? a qualitative study of five upper grade teachers approach to the 2011 policy documents in history.This essay examines five upper grade teachers approach to the new 2011 policy documents in the history school subject, as well as it?s impact on the teachers class room activities. Also, the study examines what factors have influenced this conversion process. Colleagues, the school management and the Swedish Skolverket (the Swedish school management organisation, controlled by the Swedish government) are in this study the main external influences that are studied. The study is carried out with an organisation theoretical approach, witch states that controlling the schools practical activities is hard, taking in to account a great variety of ?problems? that follow a teachers every day work.