110 research outputs found
Экспозиционный динамический инженерносейсмометрический мониторинг здания Института геофизики УрО РАН с применением аппаратнопрограммного комплекса «Регистр-SD»
Seismometric monitoring of the building of the Institute of geophysics, located at Yekaterinburg was conducted in the period of 2017-2018. During the measurements, the hardware-software complex "Register-SD" with the electro-dynamic sensor SK-1P was used. The calculation of the period of natural oscillations of the object is given on the example of a vertical profile located in the south-eastern part of the building. The results of monitoring show that there are no failures in the studied section of the facility.В 2017-2018 гг. проведен сейсмометрический мониторинг здания Института геофизики с помощью аппаратно-программного комплекса «Регистр-SD» и электродинамического датчика СК-1П. Сделан расчет периода собственных колебаний объекта на примере вертикального профиля, расположенного в юговосточном крыле. Результаты мониторинга показывают отсутствие нарушений на изучаемом участке
ВЗАИМОДЕЙСТВИЕ ВУЗОВ И ВЕНЧУРНЫХ ПРЕДПРИЯТИЙ В СФЕРЕ ОБЕСПЕЧЕНИЯ ЗАНЯТОСТИ НАСЕЛЕНИЯ И РАЗВИТИЯ ТРУДОВЫХ ОТНОШЕНИЙ
The current economic situation is a consequence of the low innovation activity of the real sector. To go to a new quality of the national economy requires the development of venture business segment. However, along with the problem of lack of investment, this segment was faced with staffi ng problems, the solution of which requires a non-trivial approaches.This article outlines the main aspects of cooperation between higher education institutions and ventures to address staffing issues in the past and generally – in order to ensure the normal employment (through the creation of new high-tech jobs) and the promotion of labor relations in the national economy. In this article the basic scheme, to extend the functions of venture capital funds, which will not only provide funding for innovative projects, but also to coordinate the cooperation of universities and venture companies in the staffing of the past.The purpose / goal. The main purpose of this article is to identify ways to improve staffing activities of venture companies by finding new forms of cooperation between enterprises, research and education sector and institutions of venture capital financing.Methodology. This article used the methods of economic-statistical and comparative analysis and synthesis of scientific solutions of direct practical application.Conclusions / relevance. The practical significance of the results is to develop the basic scheme of trilateral cooperation between higher education institutions, venture capital companies and venture capital funds in order to provide innovative projects need not only financial, but also human resources.Современная экономическая ситуация является следствием низкой инновационной активности предприятий реального сектора. Для перехода к новому качеству национальной экономики необходимо развитие сегмента венчурного предпринимательства. Однако наряду с проблемой недостаточности инвестиций этот сегмент столкнулся и с кадровой проблемой, решение которой требует нетривиальных подходов.В данной статье изложены основные аспекты взаимодействия высших учебных заведений и венчурных предприятий для решения кадровой проблемы последних и в целом – в целях обеспечения нормальной занятости населения (путем создания новых высокотехнологичных рабочих мест) и содействия развитию трудовых отношений в национальной экономике. В данной статье предложена базовая схема, предполагающая расширение функций венчурных фондов, которые будут не только осуществлять финансирование инновационных проектов, но и координировать сотрудничество ВУЗов и венчурных предприятий в части кадрового обеспечения последних.Цель/задачи. Основная цель данной статьи заключается в определении направлений совершенствования кадрового обеспечения деятельности венчурных предприятий посредством нахождения новых форм сотрудничества между этими предприятиями, научно-образовательным сектором и институтами венчурного финансирования.Методология. В данной статье использованы методы экономико-статистического и сравнительного анализа, а также синтеза научных решений, имеющих непосредственное практическое применение.Выводы/значимость. Практическая значимость результатов заключается в выработке базовой схемы трехстороннего сотрудничества между высшими учебными заведениями, венчурными предприятиями и венчурными фондами в целях обеспечения инновационных проектов необходимыми не только финансовыми, но и кадровыми ресурсами
Verification of a rigorous 2D model of rough surface scattering
A rigorous two-dimensional (2D) model of electromagnetic surface scatter has been developed, based on a boundary element method (BEM) established by Simonsen [1]. Simulated far-field scatter is compared to that measured from a laser scatterometer for a sinusoidal grating, with a mean difference of 3% of the peak intensity
Orbital glass and spin glass states of 3He-A in aerogel
Glass states of superfluid A-like phase of 3He in aerogel induced by random
orientations of aerogel strands are investigated theoretically and
experimentally. In anisotropic aerogel with stretching deformation two glass
phases are observed. Both phases represent the anisotropic glass of the orbital
ferromagnetic vector l -- the orbital glass (OG). The phases differ by the spin
structure: the spin nematic vector d can be either in the ordered spin nematic
(SN) state or in the disordered spin-glass (SG) state. The first phase (OG-SN)
is formed under conventional cooling from normal 3He. The second phase (OG-SG)
is metastable, being obtained by cooling through the superfluid transition
temperature, when large enough resonant continuous radio-frequency excitation
are applied. NMR signature of different phases allows us to measure the
parameter of the global anisotropy of the orbital glass induced by deformation.Comment: 7 pages, 6 figures, Submitted to Pis'ma v ZhETF (JETP Letters
Phase diagram of superfluid 3He in "nematically ordered" aerogel
Results of experiments with liquid 3He immersed in a new type of aerogel are
described. This aerogel consists of Al2O3 strands which are nearly parallel to
each other, so we call it as a "nematically ordered" aerogel. At all used
pressures a superfluid transition was observed and a superfluid phase diagram
was measured. Possible structures of the observed superfluid phases are
discussed.Comment: 6 pages, 8 figures. Submitted to Pis'ma v ZhETF (JETP Letters
Suspension high velocity oxy-fuel spraying of TiO2: a quantitative approach to phase composition
A range of coatings from a water based suspension of anatase has been prepared by suspension high velocity oxy-fuel spraying with the aim to study effects of heat power of the flame on phase composition, microstructure and surface topography. Three most commonly used approaches of quantitative phase analysis have been scrutinized with respect to their applicability and as some of the coatings showed presence of preferred orientation and it was argued that quantitative Rietveld refinement is the most accurate method for phase composition determination. Coatings had a layered duplex anatase/rutile microstructure with fraction of rutile increasing exponentially with heat power. Spraying at the lower heat power led to a lower surface roughness and higher power resulted in surfaces with pronounced humps, which were distributed homogeneously on the surface. The emergence of humps is related to an increase in macroscopic surface area of up to 30% with respect to the flat coating
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Chitin oligosaccharide N,N′-diacetylchitobiose (GlcNAc2) as antimicrobial coating against listeria monocytogenes on ready-to-eat shrimp
N,N′-diacetylchitobiose, also known as GlcNAc2, is a chitin oligosaccharide and is reported to possess antimicrobial activity against pathogenic bacteria. In this study, 1% (w/v) GlcNAc2 solution was applied on ready-to-eat (RTE) shrimp and evaluated as an antimicrobial coating against Listeria monocytogenes during storage at 4 °C for 16 days. Texture properties, colour, TBARS values, moisture content and bacterial counts were monitored and analysed every four days. The results indicated that the GlcNAc2 coating retarded the changes in texture properties, TBARS values and moisture content of the RTE shrimp during storage. The presence of GlcNAc2 showed no significant changes in RTE shrimp colour in contrast to the control. However, the growth of L. monocytogenes inoculated on the GlcNAc2-coated RTE shrimp was slower than that of the control sample with the highest log reduction of 0.5 log CFU/mL being observed. This study showed that the GlcNAc2 used as an antimicrobial coating was able to inhibit the growth of L. monocytogenes, while maintaining the quality of the RTE shrimp during refrigerated storage
Durability of coconut shell powder (CSP) concrete
The rising cost of construction in developing countries like Malaysia has led
concrete experts to explore alternative materials such as coconut shells which are renewable
and possess high potential to be used as construction material. Coconut shell powder in varying
percentages of1%, 3% and 5% was used as filler material in concrete grade 30 and evaluated
after a curing period of 7 days and 28days respectively. Compressive strength, water
absorption and carbonation tests were conducted to evaluate the strength and durability of CSP
concrete in comparison with normal concrete. The test results revealed that 1%, 3% and 5% of
CSP concrete achieved a compressive strength of 47.65MPa, 45.6MPa and 40.55%
respectively. The rate of water absorption of CSP concrete was recorded as 3.21%, 2.47%, and
2.73% for 1%, 3% and 5% of CSP concrete respectively. Although CSP contained a carbon
composition of 47%, the carbonation test showed that CSP no signs of carbon were detected
inside the concrete. To conclude, CSP offers great prospects as it demonstrated relatively high
durability as a construction material
Serum IgE Reactivity Profiling in an Asthma Affected Cohort
BACKGROUND: Epidemiological evidence indicates that atopic asthma correlates with high serum IgE levels though the contribution of allergen specific IgE to the pathogenesis and the severity of the disease is still unclear. METHODS: We developed a microarray immunoassay containing 103 allergens to study the IgE reactivity profiles of 485 asthmatic and 342 non-asthmatic individuals belonging to families whose members have a documented history of asthma and atopy. We employed k-means clustering, to investigate whether a particular IgE reactivity profile correlated with asthma and other atopic conditions such as rhinitis, conjunctivitis and eczema. RESULTS: Both case-control and parent-to-siblings analyses demonstrated that while the presence of specific IgE against individual allergens correlated poorly with pathological conditions, particular reactivity profiles were significantly associated with asthma (p<10E-09). An artificial neural network (ANN)-based algorithm, calibrated with the profile reactivity data, correctly classified as asthmatic or non-asthmatic 78% of the individual examined. Multivariate statistical analysis demonstrated that the familiar relationships of the study population did not affect the observed correlations. CONCLUSIONS: These findings indicate that asthma is a higher-order phenomenon related to patterns of IgE reactivity rather than to single antibody reactions. This notion sheds new light on the pathogenesis of the disease and can be readily employed to distinguish asthmatic and non-asthmatic individuals on the basis of their serum reactivity profile
Assembling the Marine Metagenome, One Cell at a Time
The difficulty associated with the cultivation of most microorganisms and the complexity of natural microbial assemblages, such as marine plankton or human microbiome, hinder genome reconstruction of representative taxa using cultivation or metagenomic approaches. Here we used an alternative, single cell sequencing approach to obtain high-quality genome assemblies of two uncultured, numerically significant marine microorganisms. We employed fluorescence-activated cell sorting and multiple displacement amplification to obtain hundreds of micrograms of genomic DNA from individual, uncultured cells of two marine flavobacteria from the Gulf of Maine that were phylogenetically distant from existing cultured strains. Shotgun sequencing and genome finishing yielded 1.9 Mbp in 17 contigs and 1.5 Mbp in 21 contigs for the two flavobacteria, with estimated genome recoveries of about 91% and 78%, respectively. Only 0.24% of the assembling sequences were contaminants and were removed from further analysis using rigorous quality control. In contrast to all cultured strains of marine flavobacteria, the two single cell genomes were excellent Global Ocean Sampling (GOS) metagenome fragment recruiters, demonstrating their numerical significance in the ocean. The geographic distribution of GOS recruits along the Northwest Atlantic coast coincided with ocean surface currents. Metabolic reconstruction indicated diverse potential energy sources, including biopolymer degradation, proteorhodopsin photometabolism, and hydrogen oxidation. Compared to cultured relatives, the two uncultured flavobacteria have small genome sizes, few non-coding nucleotides, and few paralogous genes, suggesting adaptations to narrow ecological niches. These features may have contributed to the abundance of the two taxa in specific regions of the ocean, and may have hindered their cultivation. We demonstrate the power of single cell DNA sequencing to generate reference genomes of uncultured taxa from a complex microbial community of marine bacterioplankton. A combination of single cell genomics and metagenomics enabled us to analyze the genome content, metabolic adaptations, and biogeography of these taxa
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