Sökning: "fingerprint recognition"

Visar resultat 6 - 10 av 10 avhandlingar innehållade orden fingerprint recognition.

1. 6. Recognition and Evaluation by Video Synthesis Methods and Symmetry Features

   Författare :Dereje Teferi Lemma; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Biometrics; eye detection; video synthesis; liveness detection; camera calibration; damascening; Generalized Structure Tensor; symmetry codes;

   Sammanfattning : Biometrics is being increasingly utilized for person authentication. It requires little or no efforts from the user as compared to traditional non-biometric systems where the user has to memorize PIN codes and passwords or carry pass cards and keys that can be easily forgotten or lost. LÄS MER

3. 7. Analysis of Metabolites in Complex Biological Samples Using LC/MS and Multivariate Data Analysis : Metabolic Fingerprinting and Detection of Biomarkers

   Författare :Helena Idborg; Sven Jacobsson; Per-Olof Edlund; Jonas Bergquist; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Metabolomics; Metabonomics; Metabolic Fingerprinting; Drug Metabolism; Biomarkers; Human Plasma; Rat Urine; LC MS; ZIC-HILIC; UPLC; UHPLC; ToF; Curve Resolution; Peak Detection; Pattern Recognition; Classification; PCA; PLS; PARAFAC; N-PLS; Data Fusion; Hierarchical Modeling; Batch modeling; Data Concatenation; Breast Cancer; Phospholipidosis; Analytical chemistry; Analytisk kemi; Analytical Chemistry; analytisk kemi;

   Sammanfattning : To facilitate early diagnosis of diseases and elucidation of the processes involved in their development and progression, various specific compounds or ‘biomarkers’ are often monitored. The first step is to decide which compounds to analyze. LÄS MER

4. 8. Regulation, structure and function of glutathione reductase and its transcriptional regulator NtcA from the cyanobacterium Anabaena PCC 7120

   Författare :Fanyi Jiang; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

   Sammanfattning : Glutathione reductase (GR) is an important antioxidant enzyme in all aerobic life. Theenzyme was purified from cyanobacterium Anabaena PCC 7120 and overexpressed inEscherichia coli. It has physicochemical and kinetic properties similar to GR fromother sources, but unique features in the pyridine nucleotide-binding site. LÄS MER

5. 9. Heparan Sulfate Biosynthesis – Clues from Knockout Mice

   Författare :Johan Ledin; Lena Kjellén; John Gallagher; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cell and molecular biology; heparan sulfate; biosynthesis; gene targeting; embryonic development; proteoglycans; NDST; N-deacetylase N-sulfotransferase; Cell- och molekylärbiologi; Cell and molecular biology; Cell- och molekylärbiologi;

   Sammanfattning : In the extracellular space, many specialized proteins are located to support cells and to mediate cell-cell signalling. One class of such molecules is heparan sulfate (HS) proteoglycans, which are proteins with different properties and locations but all of them decorated with long unbranched HS polysaccharide chains. LÄS MER

7. 10. Methods to Improve the Selectivity of Gas Sensor Systems

   Författare :Tomas Eklöv; Corrado Di Natale; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : In several situations it is essential to be able to measure the composition of a gas mixture, discriminate between or quantify different gases mixtures (odors), or in some cases to give a 'fingerprint', which represents the gas mixture. A gas sensor system is designed to measure certain attributes of a gas mixture. LÄS MER