Search for dissertations about: "Vector sensors"

Showing result 6 - 10 of 32 swedish dissertations containing the words Vector sensors.

2. 6. Extracting Cardiac Information From the Pressure Sensors of a Dialysis Machine

   Author : Mattias Holmer; Avdelningen för Biomedicinsk teknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hemodialysis; extracorporeal pressure signals; cardiac pressure signal; heart rate; ventricular premature beats; venous needle dislodgement;

   Abstract : This doctoral thesis in biomedical engineering deals with cardiac monitoring using the built-in extracorporeal blood pressure sensors of a hemodialysis machine. Patients treated with hemodialysis often suffer from cardiovascular disease. READ MORE

4. 7. Measuring and modelling parameters from hyperspectral sensors for site-specific crop protection

   Author : Anders Larsolle; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Abstract : This thesis sought to optimise systems for plant protection in precision agriculture through developing a field method for estimating crop status parameters from hyperspectral sensors, and an empirical model for estimating the required herbicide dose in different parts of the field. The hyperspectral reflectance measurements in the open field took the form of instantaneous spectra recording using an existing method called feature vector based analysis (FVBA), which was applied on disease severity. READ MORE

5. 8. On-chip terahertz characterisation of liquids

   Author : Juan Cabello Sánchez; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dielectric permittivity; Through-Reflect-Line TRL calibration; vector network analyzers VNA ; terahertz spectroscopy; isopropyl alcohol IPA ; coplanar waveguides CPW ; water; on-wafer measurements; planar Goubau line; Chip; liquids; microfluidic channels; scattering parameters; material properties;

   Abstract : Spectroscopy at terahertz frequencies can be used in a wide range of applications including radio-astronomy, pharmaceutical manufacturing control, and the study of processes in molecular biology. Biomolecular samples should preferably be studied in their native environment, water, however, water poses extreme attenuation for THz-frequency waves, deteriorating or even impeding analysis using these waves. READ MORE

6. 9. A Computational Approach for Modelling Context across Different Application Domains

   Author : Alisa Lincke; Marc Jansen; Marcelo Milrad; Barbara Wasson; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; context modelling; multidimensional vector space model; contextualisation; recommender systems; rich context model; Media Technology; Medieteknik; Computer Science; Datavetenskap;

   Abstract : Nowadays, people use a wide range of devices (e.g., mobile phones, smart watches, tablets, activity bands, laptops) to access different digital applications and services. The ubiquitous distribution of these devices allows them to be used across different settings, in different situations, and in a large number of different domains. READ MORE

7. 10. Sensor Fusion for Smartphone-based Vehicle Telematics

   Author : Johan Wahlström; Peter Händel; Erik Gudmundson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

   Abstract : The fields of navigation and motion inference have rapidly been transformed by advances in computing, connectivity, and sensor design. As a result, unprecedented amounts of data are today being collected by cheap and small navigation sensors residing in our surroundings. READ MORE