På uppdrag av uppdragsgivaren skall ett konstruktionsförslag på ett klämskydd tas fram. Detta efter rekommendationerifrån Boverket om att förbättra klämsäkerheten i dörrar. Rekommendationerna baseraspå en rapport från Konsumentverket. Rapporten åskådliggör att cirka 50 % av alla klämskador sker pålåssidan, samtidigt finns det få lösningar för minimering av klämrisken på låssidan.En produktjämförelse genomförs för att se vad marknaden erbjuder för lösningar. Praktiska tester av dörrstängningarutförs samt observationer av dörrstängningar.Konceptframtagning inleds där skisser på koncept tas fram. Inspiration till koncepten hämtas från bådestudenter på närliggande ingenjörsprogram, släkt och vänner samt av diverse besök på företag. För attjämföra de olika koncepten används en viktad konceptvalsmatris. Från ett urval av sex koncept väljs trestycken ut för vidareutveckling.Slutligen väljs ett koncept för att lägga grunden till ett konstruktionsförslag. Konceptet bygger på ettklämskydd med luftdämpning vilket aktiveras vid kraftiga stängningar av dörren. Klämskyddet minimerarrisken för att användaren skadas mellan dörrblad och karmsidostycket på låssidan. FEM - analyser utförspå de ingående delarna för att kontrollera hållfastheten. Funktionen testats genom att undersöka om kompressionuppstår i de prototyper som skapas. Testerna visar att kompression uppstår.Resultatet av examensarbetet leder till ett konstruktionsförslag med tillhörande ritningar och material.Konstruktionsförslaget monteras under överkanten av karmen. Konstruktionsförslaget dämpar dörrensrörelse genom att kompression uppstår i en kammare, vid en långsam rörelse uppstår ingen kompressionvilket medför att dörren kan stängas normalt.I konstruktionsförslaget kan zinklegeringen ZA-27 användas för gjutning av kamrarna och kolvstångenom omkonstruktion utförs. En PVC- elastomer används för gjutning av dämpplattan, vidare tillkommer enkonisk tryckfjäder samt åtta skruvar. Konstruktionsförslagets hållfasthet behöver ses över yttreliggare föratt garantera tillräcklig hållfasthet för framtida arbete då FEM-analyser visar på att materialet utsätts förmycket höga spänningar. / On behalf of the client, a design proposal regarding pinch protection is developed. This follows the recommendationsfrom Boverket to improve the pinch security in doors. The recommendations are based ona report by Konsumentverket. The report illustrates that approximately 50% of all the pinch related accidentshappens on the lock side of the door, while there are few solutions to minimize the risk of pinchingat the lock side.A product comparison is carried out to see what kind of solutions the market offers. Practical tests andobservations of door closure are performed.Concept development begins with the production of simple sketches. Inspiration to the pinch protectionsare taken from both students on the nearby engineering programs, family and friends as well as of variousvisits to retailers. In order to compare the different concepts, a balanced concept selection matrix is used.From a selection of six concepts three is chosen to go through further developed.Finally, one concept laid the foundation for a design proposal. The concept is based on a pinch protectionwith air cushioning, which is activated when someone forcefully try to close the door. Pinch protectionminimizes the risk of injury to the user between door leaf and the lock side of the door. A FEM-analysisis performed on the included parts to analyze the strength of materials. Function is tested by investigatingif compression occurs in the prototypes created. The tests show that compression occurs.The results of the thesis lead to a design proposal with accompanying drawings and materials. The designproposal should be mounted under the top edge of the frame. The pinch protection dampens the doorsmovement by using compression inside the chamber, at a slow movement no compression occurs, whichmeans that the door can be closed normally.The chambers and the piston rod can been made in zinc alloy ZA-27 if reconstruction is made before thecasting. A PVC elastomer is used for molding the damping plate, also a conic pressure spring and eightscrews for assembly are used.Construction of the proposals strength need to be reviewed to ensure adequate strength, as a future workthe FEM analysis shows that the material is exposed to very high tension.

The world-class Buchans Mining Camp hosts a number of high-grade, low-tonnage volcanogenic massive sulfide (VMS) deposits. The Lundberg and Engine House zones form the lower-grade stockwork to the Lucky Strike deposit and have yet to be mined. A detailed study of the Lundberg and Engine House zones was conducted to establish the stratigraphic setting of the deposits, to determine the petrology of the host volcanic rocks and distribution of alteration facies, and to characterize the mineralization with the goal of improving exploration for polymetallic massive sulfide deposits in the Buchans camp.

The world-class Buchans Mining Camp hosts a number of high-grade, low-tonnage volcanogenic massive sulfide (VMS) deposits. The Lundberg and Engine House zones form the lower-grade stockwork to the Lucky Strike deposit and have yet to be mined. A detailed study of the Lundberg and Engine House zones was conducted to establish the stratigraphic setting of the deposits, to determine the petrology of the host volcanic rocks and distribution of alteration facies, and to characterize the mineralization with the goal of improving exploration for polymetallic massive sulfide deposits in the Buchans camp.

Dissertation--Stockholm, 1995. / Bibliogr. p. 236-247.

The world-class Buchans Mining Camp hosts a number of high-grade, low-tonnage volcanogenic massive sulfide (VMS) deposits. The Lundberg and Engine House zones form the lower-grade stockwork to the Lucky Strike deposit and have yet to be mined. A detailed study of the Lundberg and Engine House zones was conducted to establish the stratigraphic setting of the deposits, to determine the petrology of the host volcanic rocks and distribution of alteration facies, and to characterize the mineralization with the goal of improving exploration for polymetallic massive sulfide deposits in the Buchans camp.

We study the infinite time ruin probability for an insurance company in the classical Cramér-Lundberg model with finite exponential moments. The additional non-classical feature is that the company is also allowed to invest in some stock market, modeled by geometric Brownian motion. We obtain an exact analogue of the classical estimate for the ruin probability without investment, i.e., an exponential inequality. The exponent is larger than the one obtained without investment, the classical Lundberg adjustment coefficient, and thus one gets a sharper bound on the ruin probability. A surprising result is that the trading strategy yielding the optimal asymptotic decay of the ruin probability simply consists in holding a fixed quantity (which can be explicitly calculated) in the risky asset, independent of the current reserve. This result is in apparent contradiction to the common believe that 'rich' companies should invest more in risky assets than 'poor' ones. The reason for this seemingly paradoxical result is that the minimization of the ruin probability is an extremely conservative optimization criterion, especially for 'rich' companies. (author's abstract) / Series: Working Papers SFB "Adaptive Information Systems and Modelling in Economics and Management Science"

Diss. Stockholm : Tekn. högsk., 1999.

Made available in DSpace on 2014-06-12T18:02:35Z (GMT). No. of bitstreams: 2 arquivo3986_1.pdf: 982526 bytes, checksum: 3aabf87c90647c2e73b2af56499bc80e (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2008 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Neste trabalho apresentamos um embasamento teórico sobre a probabilidade da ruína de uma seguradora, ou seja, a probabilidade de uma seguradora ficar com uma reserva insuficiente para pagar as indenizações resultantes de um sinistro. Mais especificadamente, estudamos o modelo clássico de risco desenvolvido por Cramér-Lundberg, o qual utiliza um processo de Poisson homogêneo para modelar o número de indenizações que chegam à seguradora até um período de tempo t. Apresentamos também diferentes distribuições para diversos tipos de indenizações a fim de modelar a probabilidade da ruína eventual de uma seguradora, bem como algumas aproximações para esta probabilidade, a saber: De Vylder, Beekman-Bowers e Cramér- Lundberg. Adicionalmente, descrevemos o modelo de reserva apresentado por Erik Sparre Andersen, o qual estende o modelo clássico de risco de reserva de Cramér-Lundberg, e com este modelo calculamos a probabilidade da ruína em tempo contínuo e horizonte temporal infinito. Os resultados de simulação levaram a conclusões semelhantes às disponíveis na literatura no sentido de poder afirmar que não existe uma aproximação melhor para estimar a probabilidade da ruína, pois esta depende não só das distribuições de probabilidade como dos valores de seus parâmetros. Os resultados de simulação realizados revelaram também que quando o tempo entre duas ocorrências sucessivas de indenizações tem função de densidade gama, as estimativas simuladas da probabilidade de ruína convergem mais rapidamente para zero quando as indenizações têm função de densidade com caudas leves do que quando as indenizações têm função de densidade com caudas pesadas

The world-class Buchans Mining Camp hosts a number of high-grade, low-tonnage volcanogenic massive sulfide (VMS) deposits. The Lundberg and Engine House zones form the lower-grade stockwork to the Lucky Strike deposit and have yet to be mined. A detailed study of the Lundberg and Engine House zones was conducted to establish the stratigraphic setting of the deposits, to determine the petrology of the host volcanic rocks and distribution of alteration facies, and to characterize the mineralization with the goal of improving exploration for polymetallic massive sulfide deposits in the Buchans camp.

The goal of this master thesis was to develop a method for real-time classification of market trading data at the Foreign Exchange (FX) department at the Skandinaviska Enskilda Bank (SEB). The characteristics in the market data sets were analyzed using Principal Component Analysis (PCA). The analysis showed that the principal component subspaces for two different types of market data, normal and abnormal, for the EUR/USD instrument where significantly different. The result from the PCA naturally led into the construction of a Single-class detector, for detecting if quote updates were normal or abnormal based on training data. The market data sets were shown to possess multicollinear characteristics, resulting in low-rank properties of the covariance matrices. To overcome this problem the solution was to transform the data using PCA, resulting in full-rank properties of the covariance matrices of the transformed data. This vital step made it possible to classify quote updates for the EUR/USD instrument. The project resulted in a classification algorithm which is able to successfully classify if a quote update is normal or abnormal with respect to training data in real-time. The algorithm is versatile in the sense that it can be implemented on any market for any currency pair, and can easily be extended to classify the relative behaviour between several currency pairs in real-time.