Определение направления на источник акустического излучения с использованием устройств регистрации упругих волн на оптических, СВЧ и ультразвуковых лучах

The article considers the principles of defining the direction to the acoustic radiation source. The results of the research in the field of directing properties of the registrating devices when operating these beams are cited.Рассматриваются принципы определения направления на источник акустического излучения c использованием продуктов параметрического взаимодействия колебаний в оптических, СВЧ и ультразвуковых лучах с акустической волной. Приводятся результаты исследования направленных свойств регистрирующих устройств при использовании этих лучей

VNTR loci as indicators of proline-dependent plague microbe strains (Yersinia pestis) in the central caucasian mountain natural plague focus

Y. pestis MLVA typing is used both to seek for similarities and differences between individual isolates upon conducting epidemiological investigations as well as for clonal clustering of intraspecies phylogenetic groups while analyzing microevolution and taxonomy issues. It cannot be ruled out that the most variable loci may be indicators allowing to approximate the unique strain-related properties circulating in certain natural plague foci. The Central Caucasian Highland Natural Plague Focus distinguished by heterogeneity of the circulating strains therein, including proline pro- and auxo-trophy, may represent a convenient model for testing this hypothesis. The purpose of our work was to assess the frequencies of the VNTR alleles associated with proline dependence among the Y. pestis strain VNTR loci, determined during previous MLVA-25 typing in the Central Caucasian Highland Natural Plague Focus. The main task was to identify the most informative sets of VNTR loci suitable for predicting proline pro— and auxotrophy (pro+, pro—). It was found that the loci ms45, ms56, ms46, ms07, ms69, ms62 displayed peak variability by allele frequencies and/or exhibited significant differences of mean allele frequencies in the pro— and pro+ strains. In particular, it was showed that the alleles of the ms45 locus contained 6 tandem repeats suggesting probability for pro+ reaching 0.944, whereas the alleles of the ms45 locus contained 7 tandem repeats with expected probability for pro— reaching 0.783. Moreover, the ms56 and ms46 contained 9 and more than 18 tandem repeats, respectively, thereby pointing at probability for pro+ equal to 0.933 and 0.818, respectively. Diagnostics for pro+/pro— phenotype by using specific statistical methods demonstrated statistical error 13.33% and 26.67% for the pro— and pro+ strains, respectively. All pro+ strains bearing a 6 tandem repeat complex from the ms45 locus, 9 tandem repeats derived from the ms56 locus and ms46 locus-derived 29—30 tandem repeats were accurately diagnosed solely based on these 3 loci. Thus, it is possible to predict some properties of Y. pestis strains based on determining the allele frequencies. While the number of MLVA typed plaque strains isolated in such natural focus has been progressively increased, it may be expected that opportunities for prognosing their properties based on determining locus tandem repeat composition having diagnostic value would be elevated

Влияние параметров зондирующего луча в параметрических устройствах регистрации волновых возмущений в среде на качество приема сигнала

Influence of width and distortion of boring beam in environment on quality of signal reception in parametric register arrangements on different beams is considered.Рассматривается влияние ширины и искривления зондирующего луча в среде на качество приема сигнала в параметрических регистрирующих устройствах на различных лучах

Определение акусто-эмиссионных характеристик воздушных судов с использованием параметрических регистрирующих устройств на СВЧ и оптических лучах

This article describes the method of definition of acoustic-emission characteristics of aircraft with the use of parametric registering devices on superhigh frequencies and optical beams. The results of the research of acoustic response and bandwidth of registering devices when using those beams are given.Рассматривается метод определения акусто-эмиссионных характеристик воздушных судов (ВС) с использованием параметрических регистрирующих устройств на СВЧ и оптическом лучах. Приводятся результаты исследования акустической чувствительности и ширины полосы регистрирующих устройств при использовании этих лучей

Анализ характеристик устройств регистрации волновых возмущений в среде с использованием оптических, СВЧ и ультразвуковых лучей

Рассматриваются характеристики устройств регистрации акустических волн в воздухе и воде с использованием оптических, СВЧ и ультразвуковых лучей. Приводятся результаты исследования акустической чувствительности, направленных свойств и ширины полосы устройств при использовании этих лучей

Biological Earth observation with animal sensors.

Space-based tracking technology using low-cost miniature tags is now delivering data on fine-scale animal movement at near-global scale. Linked with remotely sensed environmental data, this offers a biological lens on habitat integrity and connectivity for conservation and human health; a global network of animal sentinels of environmen-tal change

DISCLOSURE OF WIND SHIFT ON SMALL HEIGHT AND ATMOSPHERIC TURBULENCE ON TAKE-OFF - LANDING STRIPE WITH USE REGISTER ARRANGEMENTS ON MICROWAVE AND OPTICS BEAMS

The method of detecting of wind shear at low height and atmospheric turbulence on take-off and landing runways with the use of parametric register arrangements on microwave and optics beams are considered. The results of the research of register arrangements response when these beams are being used

DEFINITION OF DIRECTION ON SOURCE OF ACOUSTIC RADIATION WITH USE OF ARRANGEMENTS OF REGISTRAITION OF RESILIENT WAVES ON OPTICS, VICROWAVE AND ULTRASONIC BEAMS

The article considers the principles of defining the direction to the acoustic radiation source. The results of the research in the field of directing properties of the registrating devices when operating these beams are cited