This article illustrates a system for stabilizing objects in space based on integral fiber elements. The proposed system showed results commensurate with similar systems with a length of tens of kilometers of SMF-28 optical fiber, while using PANDA type optical fiber is only 200 m. In the work, a model of the system was developed and experimental studies of the response and angular velocity of the gyroscope were carried out.
The problem of parallel solution of partial differential equations with the help of the method of lines that ensures the reduction of the initial problem to the Cauchy problem described by a system of ordinary differential equations is considered. As a basic method, collocated multi-step block difference schemes are proposed. Obtaining a numerical solution in this case becomes possible only with the use of high-performance computing, usually with parallel architecture. This problem becomes especially important in the implementation of mathematical models based on systems of partial differential equations when it comes to the need for discretization of the solution search area, which can be significantly complicated by the geometric configuration of the boundaries. Solution of systems of this order cannot be obtained without involving multiprocessor computers. But by simply increasing the processing power, this problem cannot be solved. Only by combining the advantages of supercomputers and modern numerical simulation methods we can expect a significant improvement in the numerical solution of partial differential equations (PDEs).
KEYWORDS: Photonic integrated circuits, Data compression, Statistical analysis, Associative arrays, Data processing, Data modeling, Computer programming, Data conversion, Binary data, Algorithm development
Basic coding methods for data compression in optical transmission are considered. A parallel-hierarchical transformation is proposed as a means of addressing the shortcomings of the methods considered. Pyramid-linear and pyramid-nonlinear coding at the functional level are given. The corresponding number of elements in the masks was calculated. The efficiency of the developed method compared to known methods was analyzed. The compression ratio and data compression conditions were determined.
The work is aimed at the development and experimental testing of the polarization-spectral method for analyzing the polycrystalline structure of the synovial fluid films of a human joint. comparing the sensitivity, specificity and accuracy of the methods of polarimetry in the diagnosis and differentiation of the above pathological conditions of the joints, we can conclude: the highest sensitivity, specificity and accuracy are demonstrated by the method of spectropolarimetry, sensitivity reaches 92 - 93%, specificity - 82 - 86%, and accuracy - 88% - 89%. additionally, the possibility of diagnosing the type of brain stroke by changing the polarization spectral characteristics is considered.
Synthesis of (Ag2S)x(As2S3)1-x superionic glasses for x<0.2 are carried out. The spectrometric studies of optical absorption edge in (Ag2S)x(As2S3)1-x glasses are performed in the temperature range 77-390 K. Optical absorption edge of (Ag2S)x(As2S3)1-x glasses with addition of Ag2S is strongly smeared and has an exponential shape.The influence of temperature and composition on the absorption edge behavior, parameters of optical absorption edge and electronphonon interaction as well as ordering-disordering processes in (Ag2S)x(As2S3)1-x superionic glasses are studied.
Influence of respondents' state of health among the employed population was revealed, in particular, depending on the status of the settlement. It is found out that the preservation, strengthening and accumulation of human capital for the health of citizens depends, in particular, on the effectiveness of the combination of decentralization reform and medicine. The model of electronic management of public health (on the example of the territorial community of Vinnitsa region) is offered. It is reasonable that an important element of the above model at the initial stage of implementation is to obtain synergies from the introduction of electronic document flow, which allows motivating members of territorial communities to self-preserve human health capital.
This article examines the dependence of the set of parameters of the phase portrait of an EMG signal on age, sex, and the diagnosis of the examined by methods of statistical analysis. the work is carried out on the basis of the results of the examination in four groups of patients: practically healthy without complaints; conditionally healthy with complaints of back pain; vertebral patients; patients with scoliosis. the studies were conducted in collaboration with the laboratory of pathophysiology of the Sitenko institute of spine and joint pathology Ukrainian academy of medical sciences. the study was performed with 102 people of both sexes aged 18 to 76 were examined. statistical processing of samples to identify statistically significant correlations of the parameters of the phase portrait of the EMG signal with the age and sex of the subject was conducted. statistically significant differences were not found. statistical processing of the sample to identify statistically significant correlations between the group to which the patient belongs, and each indicator of the phase portrait was conducted. the groups of practically healthy patients without complaints and conditionally healthy patients with complaints of back pain are not statistically significantly different for each parameter of the phase portrait. However, between patients without pathologies, vertebral patients and patients with scoliosis, a statistically significant difference was found for seven parameters of the phase portrait. The perspective of the work is the construction of models for classifying patients according to the parameters of phase portraits of surface electromyography data.
Additional approaches of gold nanoparticles manipulation in evanescent wave were proposed in the given paper. Vertical spin excited under the birefrigent biotissue section is transmitted to particles causing their complex motion in a surrounding fluid of tissue near the surface layer. The theoretical and experimental confirmation of the existence of the extraordinary spin momentum of the evanescent wave is proposed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.