Simulation of Sawmill Yard Operations Using Software Agents

Bergkvist insjön AB is a sawmill yard which is capable of producing 350,000 cubic meter of timber every year this requires lot of internal resources. Sawmill operations can be classified as unloading, sorting, storage and production of timber. In the company we have trucks arriving at random they have to be unloaded and sent back at the earliest to avoid queuing up of trucks creating a problem for truck owners. The sawmill yard has to operate with two log stackers that does several tasks including transporting the logs from trucks to measurement station where the logs will be sorted into classes and dropped into pockets from pockets to the sorted timber yard where they are stored and finally from there to sawmill for final processing. The main issue that needs to be answered here is the lining up trucks that are waiting to be unload, creating a problem for both sawmill as well as the truck owners and given huge production volume, it is certain that handling of resources is top priority. A key challenge in handling of resources would be unloading of trucks and finding a way to optimize internal resources.To address this problem i have experimented on different ways of using internal resources, i have designed different cases, in case 1 we have both the log stackers working on sawmill and measurement station. The main objective of having this case is to make sawmill and measurement station to work all the time. Then in case 2, i have divided the work between both the log stackers, one log stacker will be working on sawmill and pocket_control and second log stacker will be working on measurement station and truck. Then in case 3 we have only one log stacker working on all the agents, this case was designed to reduce cost of production, as the experiment cannot be done in real-time due to operational cost, for this purpose simulation is used, preliminary investigation into simulation results suggested that case 2 is the best option has it reduced waiting time of trucks considerably when compared with other cases and it showed 50% increase in optimizing internal resources.

Thomas-Fermi ground state of dipolar fermions in a circular storage ring

Recent developments in the field of ultracold gases has led to the production of degenerate samples of polar molecules. These have large static electric-dipole moments, which in turn causes the molecules to interact strongly. We investigate the interaction of polar particles in waveguide geometries subject to an applied polarizing field. For circular waveguides, tilting the direction of the polarizing field creates a periodic inhomogeneity of the interparticle interaction. We explore the consequences of geometry and interaction for stability of the ground state within the Thomas-Fermi model. Certain combinations of tilt angles and interaction strengths are found to preclude the existence of a stable Thomas-Fermi ground state. The system is shown to exhibit different behavior for quasi-one-dimensional and three-dimensional trapping geometries.

Bättre utnyttjande av nya och befintliga förrådslokaler på SSAB Tunnplåt

The purpose of this assignment at SSAB Tunnplåt in Borlänge was mainly to investigate and describe the circumstances for the spare parts stored in storage facilities within the area of operation. Even new facilities which could serve as storage rooms and their opportunities for storing spare parts were an important part of the investigation. This because of the need for improved storing of spare parts. Furthermore, market offers where reviewed for storage of spare parts in more tailored designs. The work will culminate in proposals for improvement which is of importance for the development surrounding the storage and handling of spare parts. This is since the design and management of existing storage facilities is not perceived as satisfactory with regards to spare parts characteristics. Moreover, the amount of stock locations is too few in relation to the actual need. The approach used to achieve objectives of the work was an advanced mapping for collection of vital data. The mapping consisted of interviews with involved parties, both internal and external, for the most comprehensive picture of the problems as possible. In addition, a literature survey was conducted to identify possible options for the objectives of the work as well as a personal study of existing and new storage facilities. Furthermore, the market offers for improved conditions in storage rooms were examined. A clear picture of internal logistics and warehouse activities for spare parts at SSAB Tunnplåt has been obtained during this work. From this picture, it is concluded that work in and around storage facilities can be made more efficient. SSAB Tunnplåt should additionally make efforts in the storage facilities for better use of the available storage space. A number of proposals for improvement for each studied storage facility and spare parts management in general have been conducted. These proposals for improvement include presentations to improve the design of the studied storage facilities towards enabling more stock locations. The proposals also include additional equipment for handling spare parts, scrap handling, as well as expansions of the maintenance system which supports activities in the spare parts management.

Handläggning av intrauterin fosterdöd : En kartläggning av vårdprogram vid Sveriges kvinnokliniker

Background: Parents that loose a child in connection to labour are in great need of support.Health care provider treatment and support is of great importance to how the parents will experience something that is doomed from the beginning to be one of the most tragic events the parents will ever experience. For care givers to live up to this it is incredibly important that there are worked out guidelines to follow at these situations.Aim: To chart and describe Swedish maternity wards care program with reference to “IUFD”.Method: All clinics in Sweden have been questioned regarding care program for handling of “IUFD”. Care programs has been gathered, charted and described.Results: 87% (29 of 33) off the maternity wards has a plan for treatment and guidelines for “IUFD”. Care programs are more or less explanatory and a number of variables are present in different extents.Conclusion: That ones children die is the most tragic thing that can happen to a parent.The writer is of the opinion that it is of outmost importance that these parents get the best thinkable nursing and care.There are good guidelines regarding “IUFD” at the majority of the clinics, but to safeguard the quality the writer is of the opinion that it would be good if there where national guidelines for the shaping of these care programs.

Frihet i handläggningsarbetet? : En studie om handläggarnas handlingsutrymme vid beslut i sjukförsäkringsärenden på Försäkringskassan

Syftet med vår uppsats var att få en djupare insikt i och kunskap om hur de människor som arbetar med försäkringsärenden på Försäkringskassan upplever och ser på sitt arbete. Våra frågeställningar söker svaret på hur handläggarna uppfattar sina möjligheter till egna initiativ i handläggningsarbetet. För att få svar på dessa frågor från ett ”inifrånperspektiv” har vi valt att hämta empirin från en fokusgruppintervju med fyra tjänstemän som arbetar med handläggning på en Försäkringskassa i Mellansverige. Vårt teoretiska utgångsläge var Johan Asplunds teori om den sociala responsiviteten och Roine Johanssons teori om organisatoriska begränsningar i kundrelaterat arbete. En annan utgångspunkt för vår studie har varit tidigare forskning inom områden som berör Försäkringskassan. Vi har genom vår studie kommit fram till att den teori som Roine Johansson tar upp om handläggningsutrymme bekräftas utifrån de slutsatser vi dragit från vår analys. Den sociala relationen som utspelas mellan handläggarna i det dagliga arbetet får sin förklaring genom Asplunds teori om den socialt responsiva människan och ger upphov till en intern policy som formar ärendehanteringen för lokalkontoret på ett specifikt sätt. Vi har kommit fram till att det finns ett handlingsutrymme i Försäkringskassan som grundar sig på interna överenskommelser och egna initiativ i arbetet. Detta bekräftas av Roine Johanssons teori om handlingsutrymme inom Försäkringskassans arbetsområde.

För Sverige i framtiden : Bio-objektifiering av ny medicinsk teknologi

Taking Sweden into the future – Bio-objectification of new medical technology In this article, we analyze how contemporary discursive silences around new biotechnologies such as cybrids and induced pluripotent stem cells (iPSC), have been enabled by earlier policy processes in the area, e.g. boundary work around what is human and non-human, living and non-living, subject and object. The analysis of policy processes around xenotransplantations and the use of human embryonic stem cells, shows that the stem cells’ and xenografts’ “bio-identities” become stabilized through high expectations for the future, a lack of therapeutic possibilities and struggles over definitions of life. The policy processes around human embryonic stem cells and organs from other animals, are characterized by a normalization of certain understandings of ”life”, trust in scientific progress and it’s national financial potentials and a categorization of criticism as irrational. Through these “bio-objectification processes”, debate and decision making has been moved from a political and public context into ethical committees and research funding bodies. The article concludes by discussing consequences of this political non-handling of biomedical technologies and how these bioobjects could be re-politicized.

Situationen för anhöriga och sjuksköterskan vid plötsligt dödsfall – en litteraturöversikt

Bakgrund: Att förlora en anhörig är något som är väldigt traumatiskt och omtumlande. Reaktioner på krisen brukar visa sig enligt olika faser, dessa är chockfasen, reaktionsfasen, bearbetning- och reperationsfasen samt nyorienteringsfasen. Det är viktigt att kommunikationen är ärlig och ska alltid vara hjälpande för patienten eller anhöriga. Syfte: Syftet med den här studien är att sammanställa befintliga vetenskapliga artiklar för att belysa situationen för anhöriga och personal vid plötsligt dödsfall. Metod: En litteraturstudie gjordes som baserades på 13st vetenskapliga artiklar. Litteratursökningen gjordes med hjälp av databaserna CINAHL och PubMed. Resultat: Resultatet av studien visade på att anhöriga behövde olika stöd i olika stadier och att informationen gavs på ett så rakt och ärligt sätt. Personalen upplevde att utbildning var viktigt för hantering av omhändertagande och att de sökte stöd och kunskap hos mer erfarna kollegor. Slutsats: Informationen om dödsorsaken till de anhöriga var mycket viktig och att personalen var öppna och ärliga. Anhöriga uppskattade att personalen fanns tillgängliga. Att som sjuksköterska ha tillräcklig utbildning gör att självförtroende ökar och hanteringen av svåra situationer underlättas samt kunskapen hjälper att kunna stödja anhöriga bättre.