21 research outputs found

    DEVELOPMENT AND TESTING OF A SOUND SIMULATOR FOR ACTIVE MUSIC THERAPY

    Get PDF
    Abstract. the objective of this paper is to substantiate the developed sensory neuropsychological simulator for active music therapy (AMTS), functioning according to the program of the comprehensive author's methodology of systematization of auditory means of influence on the functional state of a person. This is a new psychocorrectional tool used to develop sanogenic thinking and the formation of functional comfort in people with disabilities. From the point of view of the system-structural approach, the theoretical and methodological basis of the correction tool, flow chart of the device and layout manufacture, the interface design of the mobile application from the point of view of UX design are presented. The simulator contains built-in sound samples developed on the basis of the author's method “Profiling of the psychoacoustic effect of musical means of expressiveness”, which is based on a system of concepts, models and methods for identifying a person’s psychological profile. The reliability of the results is presented by a number ofneurobiological studies both in laboratory and in real life conditions.Keywords: functional comfort, sanogenic thinking, accessible environment, universal design, music therapy,psychoacoustics

    Background-Free Transitions in Spectra of Molecules and Selective Laser Spectroscopy of Porphirines in Amorphous Matrices

    No full text
    Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio

    Semi-markov model of processing requests to the cloud storage

    No full text
    This paper presents a semi-Markov model as an important part of the computer-aided manufacturing and a modular system of cloud storage, which affects the functioning of the whole process. The residence times of the system in states and the probability of system transitions are determined. There is a stationary distribution of the embedded Markov chain. The residence times of the system in states with allowance for repeated hits are determined by the theorem on the distribution functions of the residence times of the system in states with allowance for repeated hits. When using the trajectory method, the distribution function of the time for the complete processing of the read request by such a system is determined. A comparison of the expectation time complete processing the read request obtained in this study and obtained by the known formula for determining from the literature the expectation residence time in the subset of the system states

    Application of Tagged Neutron Method for Detecting Diamonds in Kimberlite

    No full text
    The results of testing a prototype of a separator for detecting diamonds in kimberlite ore using tagged neutron method are discussed. Kimberlite ore was irradiated with fast tagged neutrons with an energy of 14.1 MeV. The elemental content of the tray with kimberlite ore was determined. The criterion for detecting diamond was the presence of excess carbon concentration in a certain region of a kimberlite sample

    Semi-markov model of processing requests to the cloud storage

    No full text
    This paper presents a semi-Markov model as an important part of the computer-aided manufacturing and a modular system of cloud storage, which affects the functioning of the whole process. The residence times of the system in states and the probability of system transitions are determined. There is a stationary distribution of the embedded Markov chain. The residence times of the system in states with allowance for repeated hits are determined by the theorem on the distribution functions of the residence times of the system in states with allowance for repeated hits. When using the trajectory method, the distribution function of the time for the complete processing of the read request by such a system is determined. A comparison of the expectation time complete processing the read request obtained in this study and obtained by the known formula for determining from the literature the expectation residence time in the subset of the system states

    Measurement of shock N-waves using optical methods

    No full text
    National audienceAccurate measurement of broadband acoustic signals in air, particularly shock N-waves, remains a challenge. Bandwidth of existing microphones typically does not exceed 140 kHz, which results in significant overestimation of the shock rise time. Various optical methods may be used to design acoustic sensors with improved high-frequency response. Two approaches are examined in this work: focused shadowgraphy and Mach-Zehnder interferometry. The shadowgraphy method was applied to measure shock front of a high amplitude spherical N-wave generated by a spark source. The shock was illuminated by 20 ns short pulses of white light from a flash lamp; shadowgrams were captured by a CCD camera. The rise time of the shock was calculated from the shadow using numerical modeling of light propagation through inhomogeneities of refraction index caused by the shock wave. Diffraction of the light beam was accounted in parabolic approximation. Simulation results showed that diffraction effects were important in interpretation of shadowgrams and only those captured within few millimeters of a point where the light grazes the shock were informative. Experimental results were in a good agreement with theoretical predictions of the shock rise time. However, while the shadowgraphy method is simple and provides good resolution of the shock, its sensitivity to smooth parts of the waveform is very poor. More complex optical method based on a Mach-Zehnder interferometer to measure a whole waveform with high resolution was tested theoretically. Comparison of the spectra of the optically measured waveform and acoustic signal obtained with the microphone also gives absolute frequency calibration of the microphone. A distance between the microphone and a light beam can be taken into account by acoustic wave propagation modeling. The combination of optical and acoustic experimental methods and modeling therefore can be used as an effective instrument for aeroacoustic measurements and calibration of broadband microphones
    corecore