Filetype
In this paper it is shown how a convolutional code can be used either to detect errors or to correct erasures. The erasure correction is related to the error detection. Using the active burst distance lower bounds on the error and erasure correction as well as error detection are obtained for convolutional codes.
Popular Abstract in Swedish Under 1980-talet blev riskerna med blodtransfusioner alltmer uppenbara. Störst uppmärksamhet väckte ett antal fall med spridning av HIV- (AIDS) smitta, men ännu vanligare var spridning av ett virus som kunde orsaka leverinflammation. Dessa risker är numera nästan helt försvunna men dels kvarstår en oro för spridning av nya, okända virus, dels har det visat sig att blodtBlood loss in major arthroplasty may be abundant and often necessitates blood transfusions. These may transmit disease and entail an immunological burden to the recipient. After trauma and surgery, the fibrinolytic system reacts with a short period of increased activity, followed by a fibrinolytic shut-down. In this thesis we investigated the impact of the early fibrinolytic activation on blood
The purpose of this paper is to demonstrate the close interaction between epistemic and evidential stance verbs on the one hand and social hierarchy and power on the other. It is hypothesized that there is a correlation between the degree and intensity of stance verbs and the social context in which they are generated. The data for the study comes from an online bulletin board, in which members ar
This thesis concerns the prediction of the fluid mechanical conditions in some specific large vessels in the human body. Large vessels are special in the way that the Reynolds number is relatively high and in the case of arteries the flow is pulsatile. The aim is to contribute to the knowledge of flow patterns in large vessels, and ways to predict and measure fluid mechanical parameters such as sh
In summer 1987 most of the multibody dynamics community met at the JPL, Pasadena, to discuss the needs and the open problems in multibody system simulation, especially for space applications. P. W. Likins stated in his survey [16]: “Computational questions focused initially on the selection of subroutines for numerical integration, matrix inversion, or eigensystem analysis,and lately have shifted
Popular Abstract in Swedish Enterostatin är en peptid (en liten del av ett protein) som bildas i magsäcken och tarmen under en måltid. I djurförsök då råttor behandlas med enterostatin har man funnit att både aptiten och kroppsvikten minskade. Den minskade aptiten gällde speciellt för fett. Enterostatin fungerar som en mättnadssignal för fett och kan därför vara viktig för att hindra uppkomsten avThe presence of procolipase and enterostatin in the rat gastrointestinal tract has been investigated. Procolipase was identified, using in situ hybridization and immunohistochemistry, in exocrine cells of the pancreas as well as in chief cells of the fundus region of the stomach. Enterostatin is the activation peptide of procolipase and it has been found to act as a satiety signal for fat. Using a
The most common situation connection with freshwater production from sea water (desalination) is producing a brine waste stream, usually discharged back into sea water. The purpose of this study is to explore the behavior of a dense jet and bottom plume, composed of brine water of heavier effluent into a quiescent homogeneous ambient, discharged into a receiving body of lighter fresh water (tank).
Popular Abstract in Swedish I hjärnan finns ett fantastiskt effektivt kontrollsystem för utförandet av olika typer av rörelser. Lillhjärnan är en viktig del av detta kontrollsystem eftersom skador på lillhjärnan kan leda till att fint styrda rörelser blir svårare eller kanske helt omöjliga att utföra. En förståelse av lillhjärnans funktion kan därför leda till en bättre generell förståelse av hur A modular organization has recently been described for the cerebellar control system comprising the forelimb areas of the C1/C3/Y zones in the cerebellar cortex and nucleus interpositus anterior (NIA) of the cat. A module is a group of cells in NIA which receives homogenous climbing fibre input via Purkinje cells that belong to the same set of microzones in the C1/C3/Y zones. The organization of i
Popular Abstract in Swedish Jorden är ett ytterst komplext och dynamiskt system. Livet har format planeten och utvecklats i takt med förändrade livsvillkor. Ekosystemen kontrolleras i hög grad av klimatet. Snabbt förändrade villkor innebär betydande påfrestningar för åtskilliga arter och ekosystem, inklusive planetens mest dominerande art, människan. Avhandlingens huvudfokus är att undersöka samsThe Earth is a highly complex and dynamic system. Life has shaped the entire planet and evolved in response to living conditions. Ecosystems are heavily affected by climate. Rapidly changing conditions imply considerable stress on several species and ecosystems, as well as to the most dominant species on the planet. The main focus of this thesis is to investigate climate and anthropogenic interac
This paper describes in what ways hierarchical organizations influence the utilization and dissemination of knowledge. Particular attention will be paid to the role that tacit knowledge has. The reporting system of incidents is one element in a larger institutional process, often termed 'lessons learned' (LL). This process helps to suggest solutions to identify shortcomings and facilitates in maki
The Conference on Computational Natural Language Learning is accompanied every year by a shared task whose purpose is to promote natural language processing applications and evaluate them in a standard setting. In 2008 the shared task was dedicated to the joint parsing of syntactic and semantic dependencies. This shared task not only unifies the shared tasks of the previous four years under a uniq
