Sökresultat

Filtyp

Din sökning på "*" gav 532035 sökträffar

Laboratory evaluation of a gasifier particle sampling system using model compounds of different particle morphology

The objective of this work was to design and evaluate an experimental setup to be used for field studies of particle formation in biomass gasification processes. The setup includes a high-temperature dilution probe and a denuder to separate solid particles from condensable volatile material. The efficiency of the setup to remove volatile material from the sampled stream and the influence from cond

Anaerobic digestion of crop residues at low temperatures

Biogas is a renewable source of energy. Residues from agriculture contain considerable energy potential and are suitable substrates for biogas production, but in Sweden the utilization of these residues is low. The economic feasibility of biogas production in general is low, and only limited subsidies are provided by the state. In the present work, the feasibility of low-temperature digestion of c

Providing flexibility in a convolutional encoder

In future radio systems, flexible coding and decoding architectures will be required. In case of the latter, implementing architectural flexibility with regard to low power issues is a challenging task. The flexible encoding platform in this paper is a first step toward this envisioned decoder. It generates a wide class of codes, starting with convolutional codes. As an extension to this, turbo co

Pathogenesis of infections related to foreign devices within the cerebral ventricles

Popular Abstract in Swedish Vid det tillstånd som kallas för vattenskalle, hydrocephalus, uppstår övertryck innanför skallen på grund av att vätskan, som cirkulerar där inte kan dräneras. Redan efter andra världskriget började man sätta in shuntar för att avleda överskottsvätskan till andra hålrum i kroppen, hjärtats förmak eller bukhålan. Runt 1960 kom emellertid de första rapporterna om infektioCoagulase-negative staphyloccoci (CoNS) are the most frequently isolated micro-organisms from infected cerebrospinal fluid (CSF) shunts and temporary ventricular drainage catheters, used in modern neurosurgery. CoNS originate from the skinflora of the patient or the surgeon and gain access to the surface of the implant at the insertion, but the infection can erupt up to a year later or more. Immed

Optical parametric oscillator based lidar system applied to atomic mercury monitoring

Field measurements of mercury emissions has been performed by using a mobile lidar system. In this system an Nd:YAG-pumped OPO (Optical Parametric Oscillator) laser system is employed to generate a narrow band (better than 0.2 cm-1) UV beam at the mercury resonance absorption line at 253.65 nm. An inter-comparison of the lidar system and two different point monitoring systems has been performed sh

Stora döden. Den värsta katastrof som drabbat Europa

Boken handlar om digerdöden 1347-52 och dess kulturella följdverkningar, främst i Europa (men även i Främre Orienten). Steg för steg skildras epidemins härjningar i hela den kända världen, men dessutom skildras dåtidens orsaksförklaringar, medicinska experiment, religiösa rörelser, judepogromer, agrarkriser, med mera, vilka alla på ett eller annat sätt kan länkas till digerdöden. Boken belönades

Conference • NNHSH 2014 Theme: Creative and able citizens: managing health and illness during the life course

As the Nordic welfare states evolve – with ideologies that focus on an increased consumption of health services – citizens are required to be productive throughout their life course. And because fewer economic resources are being invested into basic health care, and there is a move to shift more responsibility onto the individual (patient), it is becoming essential to illuminate practices that sho