Sökning: "Error spectra"

Visar resultat 1 - 5 av 29 avhandlingar innehållade orden Error spectra.

  1. 1. Lifetime Surface Phosphor Thermometry - Technique Developments, Sources of Error, and Applications

    Författare :Henrik Feuk; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phosphor thermometry; thermographic phosphors; decay time; lifetime; laser-induced phosphorescence; thermometry; high temperature; surface thermometry; maximum entropy method; Kubelka-Munk; Fysicumarkivet A:2023:Feuk;

    Sammanfattning : Temperature is not only a fundamental aspect of everyday life, but it is also an essential metric for thermal conversion systems concerning efficiency, emissions, and component lifetime estimation. Therefore, a vast range of different methods to measure temperature has been developed. LÄS MER

  3. 2. Long-range intermolecular dispersion forces and circular dichroism spectra from first-principles calculations

    Författare :Auayporn Jiemchooroj; Bo Sernelius; Patrick Norman; Kenneth Ruud; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; van der Waals forces; dispersion forces; dispersion coefficients; polarizability; electronic circular dichroism; Physics; Fysik;

    Sammanfattning : This work presents first-principles calculations of long-range intermolecular dispersion energies between two atoms or molecules and of electronic circular dichroism spectra of chiral molecules. The former is expressed in terms of the C6 dipole-dipole dispersion coefficients Δε, and the latter is given in terms of the extinction coefficient. LÄS MER

  4. 3. Aspects of Electrical Bioimpedance Spectrum Estimation

    Författare :Farhad Abtahi; Kaj Lindecrantz; Fernando Seoane; Mart Min; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Bioimpedance Spectroscopy; Thoracic Bioimpedance Spectroscopy; Sub-Nyquist Sampling; Undersampling; Aliasing in Electrical Bioimpedance; Bioimpedance Estimation Error.; Medicinsk teknologi; Medical Technology; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Electrical bioimpedance spectroscopy (EBIS) has been used to assess the status or composition of various types of tissue, and examples of EBIS include body composition analysis (BCA) and tissue characterisation for skin cancer detection. EBIS is a non-invasive method that has the potential to provide a large amount of information for diagnosis or monitoring purposes, such as the monitoring of pulmonary oedema, i. LÄS MER

  5. 4. Codes on Graphs and More

    Författare :Florian Hug; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; convolutional codes; woven graph codes; Low-density parity-check LDPC codes; tailbiting codes; bit error probability; MacWilliams Identity;

    Sammanfattning : Modern communication systems strive to achieve reliable and efficient information transmission and storage with affordable complexity. Hence, efficient low-complexity channel codes providing low probabilities for erroneous receptions are needed. LÄS MER

  7. 5. Chemometric and signal processing methods for real time monitoring and modeling : applications in the pulp and paper industry

    Författare :Anders Björk; Lars-Göran Danielsson; Guy Dumont; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Acoustic; Vibration; Multivariate; Chemometrics; PLS; OSC; PCA; FFT; Wavelets; WT-MRS; CWT-FLE; Pulp Quality; CSF; Brightness; Tensile Strength properties; Optical Properties; Measurement Technology; On-line; Non-invasive; Process Control; Process Analysis; Process Analytical Technology; PAT.; Akustik; Vibrationer; Multivariat; Kemometri; PLS; OSC; PCA; FFT; Wavelets; WT-MRS; CWT-FLE; Massakvalitet; CSF; Ljushet; Dragstyrkeegenskaper; Optiska egenskaper; Mätteknik; On-line; Icke berörande mätning; Processtyrning; Processanalys; Processanalytisk Teknologi; PAT.; Analytical chemistry; Analytisk kemi;

    Sammanfattning : In the production of paper, the quality of the pulp is an important factor both for the productivity and for the final quality. Reliable real-time measurements of pulp quality are therefore needed. LÄS MER