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734 Uppsatser om Forestry processing - Sida 3 av 49
Klassificering av processutrustning - en grund för riskbaserat underhåll
In this report a systematic working procedure for risk classification of processing equipment from a maintenance point of view is described. How this system has been worked out is also an important part of the report. The classification system is adapted for use in complex processing plants. Preemraff Göteborg has been subject for the underlying study and application of the system.The system aims to give a good overview of the maintenance related risks at the plant. Furthermore, the analysis result is a good motivation for the suggested maintenance activities and as motivation for extended or decreased maintenance resources in total.
Tätortsnära skogsbruksplan i Borås stad
This report is part of an Bachelor of Science work in forestry, conducted for the community of Borås, Sweden. In order to create a forest management plan for the area of Hestra, a survey was conducted. People living in the area were given the opportunity to reply to the survey. The questions in the survey are both personal and forestry-related. The aim is to reach out to the different categories of people when it comes to age, living and the different aspects of visiting the woods.
Smaken av en god recension : En studie i hur konsumenters smakupplevelsepåverkas av experters utlåtande
Consumer Information Processing (CIP) handlar om hur vi som konsumenter tar till ossoch påverkas av den information som ständigt omger oss vid en beslutssituation. Ämnethar länge varit i fokus för forskning inom marknadsföring då detta naturligtvisintresserar företagen i hög grad. Tidigare forskning hävdar att när vi som konsumentertar till oss av de intryck som omger oss, bearbetas dessa intryck tillsammans med dekunskaper vi har sedan tidigare (bottom-up processing och top-down processing).Studier har visat att information som tilldelas oss kan ha direkt påverkan på våra sinnenoch hur vi upplever en produkt.Denna studie undersökte hur olika typer av tilläggsinformation påverkade konsumentersupplevda smak av vin. Tolv testpersoner studerades i ett experiment bestående av tresteg där olika betyg presenterades på de viner testpersonerna bedömde. Resultatet avstudien visade att kvinnor i högre grad påverkas av negativ tilläggsinformation medanmän i högre grad påverkas av positiv tilläggsinformation..
Fotots väg från arkivboxen till allmänheten : En dokumentation av DiBiS digitaliseringsprocess samt en studie av digitaliseringens följder
The purpose of my one year master?s thesis is to add a documentation of a data processing-process of photo- graphs to the administration of archives. The thesis is written from an archival science perspective which is to be seen in my choice of literature, method and questions at issue. To be able to form a documentation of a data processing-process I studied DiBiS, a company specialized in digitalizing old photographs and publish them on a online database. I also added a chapter where I studied how archival institutions used to handle their old photo- graphs in a traditional manner so the reader of this thesis will be able to understand and see the differences be- tween traditional and modern photograph management.
Automatiserad inlärning av detaljer för igenkänning och robotplockning
Just how far is it possible to make learning of new parts for recognition and robot picking autonomous? This thesis initially gives the prerequisites for the steps in learning and calibration that are to be automated. Among these tasks are to select a suitable part model from numerous candidates with the help of a new part segmenter, as well as computing the spatial extent of this part, facilitating robotic collision handling. Other tasks are to analyze the part model in order to highlight correct and suitable edge segments for increasing pattern matching certainty, and to choose appropriate acceptance levels for pattern matching. Furthermore, tasks deal with simplifying camera calibration by analyzing the calibration pattern, as well as compensating for differences in perspective at great depth variations, by calculating the centre of perspective of the image.
Swedish Meats : motiven bakom försäljningen av kooperationen
In 2007 Swedish Meats, the dominant Swedish meat-producers cooperative sold its slaughtering and processing industry. The goal of a producer cooperative structure is to create value for members through vertical integration, and to strengthen members? market position. When Swedish Meats sold the slaughtering and processing components, it ceased in some respects to serve the function of a cooperative. This is a lost opportunity for both members and non-members, because Swedish Meats as a functioning cooperative could have exploited its dominant market position to positively effect producer?s prices.
UV-tork - analys av drift :
The company Somas, Säffle, has assigned Fredrik Kjellin the project of finding out how ?KVTF DN250?, one of their own valves, reacts on cutting forces under production. They wish to know if and then how much it?s possible to minimize the wall thickness of the valve with neither plastic nor to big elastic deformations caused by processing.The most critical processes have been identified as rough lathing. The study has shown that the marginal for a wall thickness of two millimeters, to fall short of the yield stress in the most critical process, is good.
Anpassat växtmaterial för skärgårdsmiljö - Tjörn
In 2007 Swedish Meats, the dominant Swedish meat-producers cooperative sold its slaughtering and processing industry. The goal of a producer cooperative structure is to create value for members through vertical integration, and to strengthen members? market position. When Swedish Meats sold the slaughtering and processing components, it ceased in some respects to serve the function of a cooperative. This is a lost opportunity for both members and non-members, because Swedish Meats as a functioning cooperative could have exploited its dominant market position to positively effect producer?s prices.
Kontorslandskap och sensory-processing sensitivitet : Vilken betydelse har de för välbefinnande, hälsa och arbetsvillkor hos designstudenter?
Kontorslandskap är en vanligt förekommande kontorsdesign och fördelar och nackdelar med att arbeta i sådan miljö är oklara. Syften med denna studie var att a) undersöka hur individer upplever att arbeta i kontorslandskap och vad det kan ha för konsekvenser för hälsa och arbetsvillkor, och b) undersöka deras grad av känslighet i förhållande till kontorslandskap, hälsa och arbetsvillkor. Studenter vid Beckmans designhögskola deltog i studien genom att fylla i en enkät. Resultaten visade att upplevelse av kontorslandskap var relaterat till anspänning av arbete och arbetstillfredsställelse men inte till sensory-processing sensitivitet vilket är delvis i linje med tidigare forskning. Att uppleva kontorslandskap som positivt kan kopplas till högre arbetstillfredsställelse och lägre anspänning av arbetet.
Ekonomiska konsekvenser för skogsbruket vid avsättning av mark för viltvårds- och jaktändamål : en fallstudie på Svenska Jägareförbundets fastighet Öster Malma
The value of game for hunting from a social economic viewpoint is an interesting topic
that is currently being investigated in a Swedish research program. The amount of
damages that the game stocks cause to the forestry is, and has been in focus for a longer
period of time. Something that I saw as missing was an investigation of how much an
active game keeping measure might cost in lost incomes for forestry in terms of reduced
acreage for forest production.
This question was the foundation for this investigation, which purpose is to give
interested persons with decent knowledge of forestry an example of how cost estimation
for forestry resembling the example that is studied can look like.
The measures that has been taken is a felling of forest in different ages on both sides of
a forest dirt road to create increased asset of forage for the game, and at the same time
give hunters that have their post along the dirt road a better chance of seeing passing
animals early and increasing the possibility to shoot good shots. The area, which is a
part of The Swedish Association for Hunting and Wildlife Management estate Öster
Malma, is also used as an example for guests who wish to learn more about managing
ungulates. These guests have now got the opportunity to get information on how big the
costs are for the measures that have been taken.
The main conclusions of this work is that changed timber prices and foremost a change
of interest rate makes big differences on the result of the calculations.
Konstruktion av sök/räddningsrobot
Volvo Human Monitoring (VHM) is an ongoing project at Volvo Cars where they measure, amongst other parameters, inhalation and exhalation through a device called Respiratory Inductance Plethysmograph (RIP), on drivers. RIP measures changes in the cross-sectional area of the chest and abdomen. When the driver is in motion, such as when she is turning the vehicle, the cross-sectional area changes and noise in the RIP signal may arise.The noise results in a large number of manual adjustments in the analysis of the RIP signal, which is very time consuming and the validity of the device for measuring inhalation and exhalation is questioned.The purpose of this study was to improve the efficiency of the analysis of the RIP signal. The goal was to create a new data processing tool in Matlab that automatically detects inhalation and exhalation from a RIP signal with higher validity compared to the previous data processing tool.In this study, nine tests were performed on drivers while they were driving in different scenarios such as highway, country road and in city traffic. Inhalation and exhalation was measured using a RIP, a pneumotachograph with a tightly sealed facemask and a thermocouple placed between the nose and mouth, which was used as reference to the RIP.The result of this study was a data processing tool that automatically detects inhalation and exhalation with higher validity compared to the previous data processing tool.
Grafisk utvecklingsplattform för signalbehandling - Design och implementation
We have different kinds of signal processing everywhere around us in our everyday life, in our cellphones, when we are listening to music, watching TV etc. This makes signal processing a very interesting and important technical area, where the demand of skilled engineers sets the limit of what is possible.Working with signal processing requires in-depth knowledge in areas such as mathematics, physics, electronics, and other related areas. For this, it has traditionally been demanded by a talented developer to also master the advanced programming languages such as C / C + + and Assembler.This has begun to change; today there are several companies that offer graphical development environments for signal processing, environments where programming skills are not needed anymore, and the focus can be on signal processing instead.The goal with this project is to build a corresponding graphical development environment to reach an understanding of what is required of these systems, and also to grasp what opportunities that are available within graphic programming. Inspiration for the work has partly arise from some of the tools available on the market, and partly from previous theses that have been written about graphic programming.The challenge lies in creating a program that can execute signal diagrams in real time from given signal blocks, and be able to handle feedback loops in an efficient way and to do so at the lowest "cost" in terms of clock cycles as possible. This should also be compared against to code, compile and run a complete signal diagram directly.To increase the usability it should also be possibility to externally manage in real time the parameters of the signal diagram during execution.The interface is a separate program, which is to some extent similar to Matlab Simulink, where a signal diagram is drawn up graphically by connecting wires between different signal blocks.
Användning av CAD-data vid NC-programmering
The degree project is performed at Metso Kamfab. The production is aimed on machines everything from handling of fiber to paper pulp. Metso Fiber and Kamfab are using Pro/Engineer for design and blueprint production. The processing department types the NC-programs in notepad on the basis of the blueprints, the CAD-dates that already is there are not used. The aim with the work is to study if Kamfab can use CAM-system for processing and production of programs for their NC-machines.
Dimensionering av ventilhus med avseende på skärkrafter
The company Somas, Säffle, has assigned Fredrik Kjellin the project of finding out how ?KVTF DN250?, one of their own valves, reacts on cutting forces under production. They wish to know if and then how much it?s possible to minimize the wall thickness of the valve with neither plastic nor to big elastic deformations caused by processing.The most critical processes have been identified as rough lathing. The study has shown that the marginal for a wall thickness of two millimeters, to fall short of the yield stress in the most critical process, is good.
Hägn i skogsbruket :
This survey was made during the autumn of 2002 and the beginning of 2003, on commission
from the National Board of Forestry. The purpose with the survey was to gather experience
and knowledge in the organisation about fencing and this was made through interviews. The
ambition was also to get knowledge from people outside the organisation that have great
experience of forestry and fencing.
The interviews were based on questions that have been composed by the author with help
from the supervisors. The questions were the same to both the personal from the National
Board of Forestry and to the foresters. Interviews were also made with private landowners, gamekeepers, game researcher, the County Administrative Board, the National Road Administration, pole and net retailers and contractors.
The target group for this work is the National Board of Forestry to be forwarded to persons interested in forestry with the ambition to spread knowledge about how to prevent damage on the forest by browsing animals.
The deer populations are big in the south of Sweden and growing populations have increased the damage on plantations of broadleaves of the most species.