Sökning: "differential measurements"

Visar resultat 1 - 5 av 229 avhandlingar innehållade orden differential measurements.

1. 1. Differential Magnetic Biosensor using HTS SQUID Gradiometer

   Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

   Författare :Sobhan Sepehri; [2019]
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high-Tc SQUID; magnetic bioassay; diagnostics; RCA; microfluidics; magnetic nanoparticle; point-of-care; rolling circle amplification; differential ac susceptibility; biosensor;

   Sammanfattning : A fundamental tool for containing an epidemic outbreak and mitigating its effects is early diagnostics. Currently, most of the diagnostic tests are performed by trained staff in centralized labs, which are expensive and time-consuming to establish and operate. Lack of access to such facilities could have devastating effects. LÄS MER

3. 2. Local Polynomial Regression with Application on Lidar Measurements

   Detta är en avhandling från Gothenburg : Chalmers tekniska högskola

   Författare :Torgny Lindström; [2004]
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik; differential equations; Funktioner; differentialekvationer; variance-function estimation.; spatial dependence; nonparametric; local polynomial regression; local bandwidth selection; lidar; heteroscedasticity; Bivariate estimation; differential absorption; Functions;

   Sammanfattning : This thesis deals with the problem of estimating a function or one of its derivatives from a set of measurements, mainly of a bivariate or spatial nature which is so common in environmental applications. In this work particular attention has been on the lidar (light detection and ranging) application which is a versatile technique for measurement of among other things atmospheric trace gases. LÄS MER

4. 3. Cosmological Dark Matter and the Isotropic Gamma-Ray Background Measurements and Upper Limits

   Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

   Författare :Alexander Sellerholm; Jan Conrad; Karl Mannheim; [2010]
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dark matter theory; dark matter simulations; dark matter experiments; isotropic gamma-ray background; Fermi gamma-ray space telescope; NATURAL SCIENCES Physics Astronomy and astrophysics Astroparticle physics; NATURVETENSKAP Fysik Astronomi och astrofysik Astropartikelfysik; Theoretical Physics; teoretisk fysik;

   Sammanfattning : This thesis addresses the isotropic diffuse gamma-ray background, as measured by the Fermi gamma ray space telescope, and its implications for indirect detection of dark matter. We describe the measurement of the isotropic background, including also an alternative analysis method besides the one published by the Fermi-LAT collaboration. LÄS MER

5. 4. Submerged Transmission in Wave Energy Converters Full Scale In-Situ Experimental Measurements

   Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

   Författare :Erland Strömstedt; Mats Leijon; Hans Bernhoff; Jan-Olov Aidanpää; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wave energy converter; direct drive; submerged transmission; piston rod; seal housing; sealing system; laser triangulation sensor; offshore measurements; relative displacement; vibrations; tilt angle; tilting; wear estimation.; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

   Sammanfattning : Different wave power technologies are in development around the world in different stages of prototype testing. So far only a few devices have been deployed offshore at full scale for extended periods of time. Little data is published about how these different devices perform. LÄS MER

7. 5. Echocardiographic measurements at Takotsubo cardiomyopathy transient left ventricular dysfunction

   Detta är en avhandling från Örebro : Örebro university

   Författare :Micael Waldenborg; Kent Emilsson; Ole Fröbert; Per Lindqvist; [2014]
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Echocardiography; takotsubo; annulus motion; cardiac autonomic function; broken heart; diastolic; ventricular mass; concentric wall motion; Medicine; Medicin; Biomedicin; Biomedicine;

   Sammanfattning : Takotsubo cardiomyopathy (TTC) is a disease characterized by transient left ventricular (LV) dysfunction and typical wall motion abnormalities in apical parts, without obvious signs of coronary influence. Due to its elusive natural cause and the lack of clarified pathology, further studies are needed. LÄS MER