Magnetic Resonance Imaging of Human High
... responses to visual stimuli with unknown origin have been observed. • The cause of these low frequency oscillations are not exactly known • but may be attributed to extra-cerebral activities such as respiration. • One method of removing the low frequency artifact is to convolve the response signal w ...
... responses to visual stimuli with unknown origin have been observed. • The cause of these low frequency oscillations are not exactly known • but may be attributed to extra-cerebral activities such as respiration. • One method of removing the low frequency artifact is to convolve the response signal w ...
Two laser wavelength Thomson Scattering for high electron
... Nd:YAG lasers as light source with a wavelength at λ=1064 nm, together with interference filter polychromators for spectral analysis of the scattered light in the near infrared region (typically between 700-1060 nm). Such a system is able to measure electron temperatures up to approximately 15 keV w ...
... Nd:YAG lasers as light source with a wavelength at λ=1064 nm, together with interference filter polychromators for spectral analysis of the scattered light in the near infrared region (typically between 700-1060 nm). Such a system is able to measure electron temperatures up to approximately 15 keV w ...
P1.192 Sample holder design for e ective thermal
... the thermal property of the material is very important for thermal-structural and thermo-hydraulic analysis. In particular, the thermal conductivity is one of necessary input data for these analyses performed in order to understand the heat transfer phenomena and estimate the thermal stress. Since f ...
... the thermal property of the material is very important for thermal-structural and thermo-hydraulic analysis. In particular, the thermal conductivity is one of necessary input data for these analyses performed in order to understand the heat transfer phenomena and estimate the thermal stress. Since f ...
High Resolution Biomedical Imaging with Light and Sound
... High resolution imaging systems are invaluable tools for biomedical research and clinical practice. Photoacoustic microscopy (PAM) is an emerging hybrid technique that can overcome the limitations of conventional optical and ultrasonic imaging modalities. A pulsed laser illuminates tissue, where opt ...
... High resolution imaging systems are invaluable tools for biomedical research and clinical practice. Photoacoustic microscopy (PAM) is an emerging hybrid technique that can overcome the limitations of conventional optical and ultrasonic imaging modalities. A pulsed laser illuminates tissue, where opt ...
AFM-IR
AFM-IR refers to atomic force microscope (AFM) based infrared (IR) spectroscopy. AFM-IR is a technique for chemical analysis of samples at nanoscale spatial resolution. AFM-IR is related to techniques including Tip-Enhanced Raman Spectroscopy (TERS) and scanning near-field optical microscopy (SNOM) and other methods of vibrational analysis with scanning probe microscopy. The AFM-IR technique uses a sharp tip of an AFM probe to measure the absorption of infrared light by a sample. Recording the amount of IR absorption as a function of wavelength or wavenumber creates nanoscale IR absorption spectra, which can be used to chemically characterize and even identify unknown materials. Recording the IR absorption as a function of position can be used to create chemical composition maps that show the spatial distribution of different chemical components. AFM-IR can overcome the diffraction limit that limits the spatial resolution of conventional infrared microscopy and microspectroscopy to the scale of several microns. AFM-IR can achieve spatial resolution down to around 20 nm, limited in some case only by the sharpness of the AFM probe tip and sensitivity down to the scale of molecular monolayers.