Energy Flux of Solar Plasma in a Sectorial Structure of the Interplanetary Magnetic Field

Energy flux values calculated for solar plasma in sectorial structure of interplanetary magnetic fiel

Narrowing Uncertainty of Projections of the Global Economy-Climate System Dynamics via Mutually Compatible Integration within Multi-Model Ensembles

Any model used to derive projections of future climate or assess its impact constitutes a particular simplification of reality. To date, no model building process can guarantee full “objectivity” in the choice of model assumptions and parameterization. In this connection, researchers have introduced a number of stylized integrated assessment models, which attempt to represent the full time-dynamic non-linear causal loop between accumulated emissions, economy and climate, yet in a aggregated, simplified fashion to enable extensive uncertainty analysis with respect to both structural and parametric uncertainty. In this work, we put forward a simplified system dynamics integrated assessment model which simulates the global economic growth, corresponding emissions, global warming and caused by its secondary effects economic losses. While generally our model follows the same logic as DICE and other models of this kind, it pays more attention to the mechanism of the emission reduction. Mitigation is assumed to be done through the allocation of a certain fraction of the total output into enhancing carbon and energy efficiency. The model enables exploring effects of mitigation scenarios defined via carbon tax. We explore the structural sensitivity by examining five alternative climate sensitivity functions and use the "mutual compatibility integration" approach to synthesize the information from the five alternative model versions

GNSS TECHNOLOGY DETERMINATION OF FLYING MACHINE GUIDANCE PARAMETERS

An algorithm of calculating the guidance parameters for GNSS aircraft landing technology was considered. The simulation and evaluation of calculation parameters error were performed as wellNational Aviation Universit

Narrowing uncertainty of projections of the global economy-climate system dynamics via mutually compatible integration within multi-model ensembles

Any model used to derive projections of future climate or assess its impact constitutes a particular simplification of reality. To date, no model building process can guarantee full ?objectivity? in the choice of model assumptions and parameterization. In this connection, researchers have introduced a number of stylized integrated assessment models, which attempt to represent the full time-dynamic non-linear causal loop between accumulated emissions, economy and climate, yet in a aggregated, simplified fashion to enable extensive uncertainty analysis with respect to both structural and parametric uncertainty. In this work, we put forward a simplified system dynamics integrated assessment model which simulates the global economic growth, corresponding emissions, global warming and caused by its secondary effects economic losses. While generally our model follows the same logic as DICE and other models of this kind, it pays more attention to the mechanism of the emission reduction. Mitigation is assumed to be done through the allocation of a certain fraction of the total output into enhancing carbon and energy efficiency. The model enables exploring effects of mitigation scenarios defined via carbon tax. We explore the structural sensitivity by examining five alternative climate sensitivity functions and use the "mutual compatibility integration" approach to synthesize the information from the five alternative model versions

Concept of group debris cleaning using unmanned servicing spacecraft

A concept of an approach to the debris cleaning using a group of servicing spacecraft to provide reliable navigation and efficiency. Some of the results of mathematical modelling are providedNational Aviation University, Ukrain

The character of fracture of iron based thermal coating during fretting

The character of destruction of thermal coatings during fretting has been investigated. An iron based plasma coating has been tested with oscillation amplitude from 30 to 200 microns. The tests were conducted in air. It has been determined that the main factor influencing the rate of the wear of the coating during fretting corrosion is the size of the coating area involved into the wear process. The coating exhibits high wear resistance when the amplitude of the oscillation is commensurate with the size of the sprayed particles. During destruction of the coating the leading role belongs to fatigue-oxidation processes. The wear of the coating acquires a catastrophic character when coating macro defects - pores and interlayer boundaries - are involved into the wear process

Papillomavirus E1 helicase assembly maintains an asymmetric state in the absence of DNA and nucleotide cofactors.

This is a freely-available open access publication. Please cite the published version which is available via the DOI link in this record.Concerted, stochastic and sequential mechanisms of action have been proposed for different hexameric AAA+ molecular motors. Here we report the crystal structure of the E1 helicase from bovine papillomavirus, where asymmetric assembly is for the first time observed in the absence of nucleotide cofactors and DNA. Surprisingly, the ATP-binding sites adopt specific conformations linked to positional changes in the DNA-binding hairpins, which follow a wave-like trajectory, as observed previously in the E1/DNA/ADP complex. The protein's assembly thus maintains such an asymmetric state in the absence of DNA and nucleotide cofactors, allowing consideration of the E1 helicase action as the propagation of a conformational wave around the protein ring. The data imply that the wave's propagation within the AAA+ domains is not necessarily coupled with a strictly sequential hydrolysis of ATP. Since a single ATP hydrolysis event would affect the whole hexamer, such events may simply serve to rectify the direction of the wave's motion.Wellcome TrustYorkshire Cancer ResearchBBSRCEPSRCMR

Design of the thermal fields by electro-impulse lathe hardening in programmatic complex of ANSYS

Проаналізовано результат моделювання у програмному комплексі ANSYS, що дозволило аналітичним методом визначити вплив технологічних факторів на глибину зміцненого шару при ЕІЗТ, а також отримати математичну модель для порівняння з експериментальними результатами.The analysis of results of design in the programmatic complex of ANSYS allowed by an analytical method to define influence of technological factors on the depth of the hardening layer at the EILH, and also to get a mathematical model for comparison with experimental results