The results of development of an adjustment block for regulating the angular position of output mirror of a lidar in a semi-automatic mode are presented. The possibility of implementing an adjustment block using economical, widely used electronic components, such as an Arduino board and stepper motors, as well as 3D-printed mounting components, is shown. Appropriate software was developed to control this unit. The program for the automatic formation of a tuning curve of the laser with parametric generation of light and the program for the automatic measurement of the dependence of the pulse energy on the generation wavelength was developed.
A stationary lidar system for atmospheric gas analysis in the spectral ranges of 1800–2120 and 2120–2550 nm has been developed and is being modernized. Variants of the technical design of the near-infrared lidar system are presented. Tuning curves of the lidar radiation source and echo signals on the surface horizontal sounding paths were obtained.
The calibration of a mobile IR laser source of a DIAL system near ~ 3400 nm for the study of methane in the atmosphere has been carried out. The technical characteristics of the IR lidar have been determined. The first test experiments to collect the atmospheric response at the calibrated wavelengths (3428.428 and 3431.708 nm) of methane sounding using a mobile IR OPO laser source were carried out.
The concept of an airborne IR differential absorption lidar for the study of methane in the atmosphere (in particular, in the Russian sector of the Arctic) is presented. The description of the main nodes and elements of the transceiver part of the IR lidar is given. The results of calculation of informative methane sensing wavelengths for polar latitudes are presented.
The results of a study of geomagnetic activity, meteorological parameters and cardiovascular activity of a group of healthy volunteers are presented. Variations of the northern, eastern and vertical components of the geomagnetic field, as well as meteorological parameters (temperature, humidity, atmospheric pressure) are considered as parameters of physical fields. Registration of physical fields is carried out in the synchronous monitoring mode in Tomsk, in the immediate vicinity of the place of residence of volunteers participating in the study. The indices of cardiovascular activity are calculated on the basis of simultaneous 24-hour monitoring of the electrocardiogram, arterial pressure and blood saturation of the subjects. The calculated correlation coefficients reflect different conjugation of the dynamics of the parameters studied in the work.
The incidence of malignant neoplasms in the territories with different levels of magnetic induction of the industrial frequency was investigated. The measurement of magnetic induction was performed using an automated complex including a laptop, a GPS receiver and magnetic induction testers oriented in accordance with the three components of the magnetic field vector. The measured data were subjected to spectral transformation with filtering harmonics of the industrial frequency, the magnetic induction module was calculated, which was displayed on the electromagnetic pollution map of the city. Data on cases of diseases for 2004–2012. were obtained from the cancer registry of the Tomsk Regional Oncology Center. The incidence was calculated in the territories with low (20–140 nT), medium (141–950 nT) and high (951–2511 nT) values of magnetic induction. An increase in the incidence of malignant tumors has been noted as the induction of the magnetic field produced by overhead power transmission lines increases. According to the Wilcoxon test, differences in morbidity are significant for incidence in areas with low and medium levels of magnetic induction at a significance level of p = 0.038; for morbidity in areas with low and high, medium and high levels of magnetic induction at a significance level of p = 0.007. The received epidemiological data demonstrate the role of magnetic fields of industrial frequency as a risk factor for occurrence of oncological diseases in the population.
The results of a study of the functioning of the human cardiovascular system in the epicentral zone of the Chui earthquake on a tectonic fault characterized by a sharp gradient zone of a regional magnetic field are presented. It is shown that in the dynamics of the daily distribution of RR-intervals, events corresponding to the time of visit by volunteers of sites characterized by the presence of a spatially inhomogeneous geomagnetic field are singled out. In particular, there is a decrease in the average period of cardiac contractions.
The results of the study of variations in the electromagnetic background parameters of the Schumann resonator frequency range and the variability indices of the human heart period during its free activity are presented on the basis of 24-hour synchronous monitoring data. It is shown that the integral evaluation of the conjugacy of the heart rate variability indices from the Schumann resonance parameters is extremely weak. In this case, the differential evaluation of this dependence with separation into characteristic time intervals of the day, characterized by different motor activity of the subjects, becomes significantly higher. The number of volunteers whose conjugacy is characterized by a strong correlation in some cases reaches 35 percent of the sample.
The results of expeditionary studies in August 2013 at the Chui region of the earthquake epicenter (2003), in the area, characterized by an abnormal performance of the spatial distribution of the geomagnetic field vector values are presented. The adaptive response of the human body by analyzing the variability of the cardiovascular system activity in a short stay in the area of natural character geomagnetic anomalies is investigated. It is shown that a person entering the zone with abnormal magnetic field gradient levels can disrupt adaptive human body reaction that is accompanied by an increased level of the cardiovascular system functioning after visiting zone and increasing the power spectral density of oscillations several RR intervals of heart rate in the range of 0,04 -0,15 Hz and 0,5-1 Hz while in a zone.
The results of the ambulance call data analysis, during one of the most powerful disturbances in the history of geomagnetic disturbances observations in 2003 are presented. The effect of the X-rays flux and the local geomagnetic disturbances in Tomsk on the ambulance calls frequency was investigated. It was found that patients with diseases of the cardiovascular and central nervous systems are characterized by a high sensitivity to variations of heliogeophysical parameters. It was found that variations of epidemiological indicators related both to the influence of geomagnetic perturbations every, and the influence of the X-ray flux absorbed by the Earth's atmosphere.
Technological advances have led to a substantial modification of the physical fields of the environment, which could affect the status of living organisms under their constant exposure. In this study, the activity of human cardiovascular system under the influence of a complex natural physical environmental factors investigated. The study was conducted on a representative homogeneous sample (44 persons aged 19 to 22 years) by simultaneous monitoring of electrocardiograms and natural physical fields in Tomsk (geomagnetic field, meteorological parameters - temperature, pressure and humidity, surface wind speed, the parameters of the Schumann resonance - amplitude, frequency and quality factor of the first four modes in the range of 6 to 32 Hz, the power spectral density infrasonic background in the range of from 0,5 to 32 Hz). It was shown that among the set of parameters of physical fields present field that can resonate in the functioning of the human organism. The greatest coherence with heart rate variability detect variations eastern component of the geomagnetic field.
The results of experimental studies on the cardiovascular system response to the impact of weak low-frequency acoustic fields using EСG characteristics are presented. The slowing of the heart rate under the impact of frequencies 10Hz and 100Hz is shown.
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