Towards assessing simulated service qualities by business stakeholders outside the system boundary

The paper describes an approach for collecting opinions on quality of service-oriented systems from the specific category of real business stakeholders (which do not interact with such systems directly on theirboundary). This approach enhances the ISAREAD-S method for collecting assessments of simulated service qualities on the system boundary in context defined by the service usage process. We introduce special Service Dependency Model taking into account dependencies between usage process activities accessible by real stakeholders and boundary activities representing services under development.В работе описана технология сбора мнений реальных заинтересованных лиц (которые не взаимодействуют с системой на ее границе) о качестве сервис-ориентированных программных систем. Данная технология является расширением метода ISAREAD-S, реализующего сбор таких мнений на основе оценивания характеристик качества программных сервисов, представленных имитационными моделями, на границе системы в контексте процессов их использования. Это расширение сводится к реализации специальной модели зависимости сервисов, учитывающей зависимости между показателями качества деятельностей процессов, доступных для реальных заинтересованных лиц и показателями качества деятельностей, определенных на границе системы, которые представляют разрабатываемые сервисы

Towards quality-aware predesign model

An approach to capturing the semantics of qualityrequirements into an intermediate predesign model is outlined. This approach combines Klagenfurt Conceptual Predesign and Aspectual Predesign techniques. Proposed extensions in corporate the hierarchy of quality characteristics into the predesign model and represent crosscutting relationships between the quality concerns and the main functionality of the system. Some directions of integration of the proposed model into quality-driven software process are discussed.У статті розглядаються основи підходу до збирання семантики вимог якості у проміжну предпроектну модель. Цей підхід є поєднанням технологій Клагенфуртського концептуального предпроектування та аспектного предпроектування. Запропоновані додатки дозволяють включити до моделі іерархію характеристик якості та подати наскрізні відношини між інтересами якості та основною функціональністю системи. Обговорені деякі напрямки інтеграції запропонованої моделі у процесс розробки програмного забезпечення, що керується якістю

On Partial Optimality by Auxiliary Submodular Problems

Доказаны определенные соотношения между тремя различными методами минимизации энергии. Предложено новое достаточное условие частичной оптимальности, основанное на LP-релаксации и названное LP-автаркией.Some relations between three different energy minimization techniques are proved. A new sufficient condition of the optimal partial assignment which is based on the LP-relaxation and called LP-autarky is suggested.Доведено певні співвідношення між трьома різними методами оптимізації енергії. Запропоновано нову достатню умову часткової оптимальності, яка базується на LP-релаксації і названа LP-автаркією

Scalable Full Flow with Learned Binary Descriptors

We propose a method for large displacement optical flow in which local matching costs are learned by a convolutional neural network (CNN) and a smoothness prior is imposed by a conditional random field (CRF). We tackle the computation- and memory-intensive operations on the 4D cost volume by a min-projection which reduces memory complexity from quadratic to linear and binary descriptors for efficient matching. This enables evaluation of the cost on the fly and allows to perform learning and CRF inference on high resolution images without ever storing the 4D cost volume. To address the problem of learning binary descriptors we propose a new hybrid learning scheme. In contrast to current state of the art approaches for learning binary CNNs we can compute the exact non-zero gradient within our model. We compare several methods for training binary descriptors and show results on public available benchmarks.Comment: GCPR 201

Fly ash particles spheroidization using low temperature plasma energy

The paper presents the investigations on producing spherical particles 65-110 [mu]m in size using the energy of low temperature plasma (LTP). These particles are based on flow ash produced by the thermal power plant in Seversk, Tomsk region, Russia. The obtained spherical particles have no defects and are characterized by a smooth exterior surface. The test bench is designed to produce these particles. With due regard for plasma temperature field distribution, it is shown that the transition of fly ash particles to a state of viscous flow occurs at 20 mm distance from the plasma jet. The X-ray phase analysis is carried out for the both original state of fly ash powders and the particles obtained. This analysis shows that fly ash contains 56.23 wt.% SiO[2]; 20.61 wt.% Al[2]O[3] and 17.55 wt.% Fe[2]O[3] phases that mostly contribute to the integral (experimental) intensity of the diffraction maximum. The LTP treatment results in a complex redistribution of the amorphous phase amount in the obtained spherical particles, including the reduction of O[2]Si, phase, increase of O[22]Al[20] and Fe[2]O[3] phases and change in Al, O density of O[22]Al[20] chemical unit cell

Instruments of investment attraction in order to fulfill the structural priorities of sustainable regional development (study based on the Rostov Region)

The aim of the study is devoted to defining most effective tools of investment funds attraction. These funds can be used in implementation of strategic priorities for socio-economic regional development requiring, in areas that are in need of economic restructuring. The authors have selected the Rostov region as the research target, the economy of which is in need of structural change in the direction of increasing innovational, high-tech and scientific production, in order to reduce import dependency and move closer towards the post-industrial model of economic development. The study considers currently available instruments of attraction of private sector closer to solving the stated problems of Rostov region, analyzing their regulatory, financial and organizational consulting security on both state and federal level. Main directions of economic restructuring of Rostov region are also defined. Authors also outline the main problems that private enterprises come across while doing business in the investigated area. On the basis of the research, investigating federal and regional instruments of private sector involvement authors form a number of proposals and recommendations focusing on regional improvement. As a result of the conducted study, the authors reached the conclusion, that there is a number of strategic measures that should be performed in the Rostov region. These don't only include the improvement of financial instruments, but also best available technologies, national technology initiative, and clustering.peer-reviewe

Use of Vanadium for Low-alloy Steel Manufacturing at JSC “EVRAZ NTMK”

Joint Stock Company “EVRAZ Nizhniy Tagil Metallurgical Plant” ( JSC “EVRAZ NTMK”) is the World’s largest processor of vanadium-rich titanium magnetite ores. This work describes the results of the research performed to test various combinations of vanadium and nitrogen microalloying targeted at repeatable quality and strength properties of the rolled steel products. In particular the benefits are described of using vanadium mass fractions in steel for manufacturing railway steel (rails, wheels, rings/tires), railcar body products (Z-beams, I-beams, etc.), API grades including large diameter X70 and X80 pipes. To optimize the analysis of different steel grades for the shaped sections manufacturing EVRAZ NTMK has taken efforts to identify the impact of the vanadium mass fraction in steel grade 09G2S on the mechanical properties of rolled steel with the elements of various thickness. During the effort, the mechanical tests were performed, the extent of vanadium reduction in the form of carbonitrides during the rolling and cooling process and its impact on the mechanical properties, the macrostructuring of rolled products was also studied. Recommendations were given on the chemical composition of steel 09G2S for manufacturing rolled steel of strength classes 375 and 390. Keywords: EVRAZ NTMK, vanadium, I-beams, mechanical properties, impact strengt

Non-equilibrium melting processes of silicate melts with different silica content at low-temperature plasma

This article is devoted to research the possibility of high-temperature silicate melts producing from different silica content at low-temperature plasma taking into account non-equilibrium melting processes

Non-equilibrium melting processes of silicate melts with different silica content at low-temperature plasma

This article is devoted to research the possibility of high-temperature silicate melts producing from different silica content at low-temperature plasma taking into account non-equilibrium melting processes

In search of an optimal acid-base indicator for examining surfactant micelles:Spectrophotometric studies and molecular dynamics simulations

We report on combined experimental and theoretical investigations of the water/micelle interface of cationic, anionic, zwitterionic, and non-ionic surfactants using a new hydrophobic acid-base indicator 2,6-dinitro-4-n-dodecylphenol. The indices of the so-called apparent ionization constant, pKa app, of the indicator fixed in the micellar pseudophase are determined by the spectrophotometric method. The data allows estimating the Stern layer's electrostatic potential of the ionic micelles Ψ. Molecular Dynamics modeling was used to locate the dye molecule and, in particular, its ionizing group OH→O– within the micelles of the studied surfactants. The comparison of the Ψ values estimated using 2,6-dinitro-4-n-dodecylphenol with both our computer simulation and literature experimental results reveals obstacles in monitoring electrical interfacial potentials. In particular, the Ψ values of the surfactant micelles with alkylammonium groups determined via 2,6-dinitro-4-n-dodecylphenol are overestimated. The reason is specific interactions of the indicator anion with the surfactant head groups. For anionic surfactants, however, this indicator is quite suitable, which is confirmed by the location of HA and A– equilibrium forms in the pseudophase