Method, models and information technology of decision making about the state of technical objects under non-stationary input influences

There is a significant increase in the amount of measuring information at complex and large technical objects, such as bridges. Decision making about these objects states under non-stationary input influences is a difficult task. The article proposes to make the transition from single-channel information processing to multi-channel one. Each channel processes one of the Hilbert-Huang modes, into which each realization of the nonstationary signal decomposes. It is shown that the first three modes of decomposition are often enough, which in most cases create a stationary process. If a mode is non-stationary, it is possible to decompose it into these modes. The final decision according to statistical criteria is made not on realizations as it is traditionally carried out, but on Hilbert-Huang modes.

Markers of emotionality in Russian news coverage of the 75-th anniversary of WWII Victory

The article explores how emotionality is manifested in the news texts covering politically sensitive topics, using as the case study coverage of the 75th anniversary of WWII Victory in news programmes of the Russian TV Channel One, Russia TV and RT. Proceeding from the key theoretical assumption of medialinguistics defining media texts as an integral unity of verbal and media components, the author singles out and analyzes markers of emotionality at both - language and media levels, paying special attention to lexis and the way it is supplemented by illustrations and video footing. The analysis of the news flow is based on the information model, which allows to structure the process of news formation according to the following stages - selection of events for news coverage, interpretation of facts, shaping images, forming stereotypes and cultural-ideological context. The goal of the study was to identify markers of emotionality and analyze how emotionality affects the interpretation and the perception of facts, paying special attention to realization of the category of broadcasting style defined as the tone of voice, or tonality news media use when addressing their audience. Conceiving emotionality as both explicitly manifested and implicitly present quality, the study singles out its three types as represented in the analyzed media texts - 1) specific pretentious style, used by newsreaders and commentators to stress the dignity and solemnity of the event; 2) deliberate affectation disguised as emotionality on the part of news anchors while presenting topically sensitive news items; 3) emotionality as spontaneous display of sincere emotions observed in interviews, dispatches of correspondents and commentaries of the participants of the events. The results of the study could serve as a basis for further analysis of emotionality markers in different types of media discourse, including news, commentary and debate on politically sensitive issues in traditional media and social networks.

Pilot-Assisted OFDM for Underwater Acoustic Communication

Multicarrier techniques have made it possible to wirelessly transmit data at higher rates for underwater acoustic (UWA) communication. Several multicarrier techniques have been explored in the past for wireless data transmission. OFDM is known to fight off inter-symbol interference due to the orthogonality of its subcarriers. However, due to time variations, OFDM suffers from intercarrier interference. As the UWA channel is both a time and frequency variant, channel estimation becomes complex. We propose a pilot-based channel estimation technique and explore two equalizers for improving the error performance of an OFDM-based UWA system. Both the equalizers employ pilot subcarriers to estimate the UWA channel. One equalizer is a least squares (LS) equalizer and the other is a zero forcing (ZF) equalizer. Using computer simulations, it is observed that, for an acceptable error performance, the number of pilots should be one-fourth the number of subcarriers. Moreover, if the energy of the pilots is increased without changing the overall symbol energy, the error performance degrades. It is also noted that both the LS and ZF equalizers give an acceptable error performance with the ZF performing marginally better than the LS. Furthermore, the error performance of the proposed system is evaluated as a function of the transmitter-receiver distance and an acceptable error performance is observed even at 1250 m.

Experimental Achievements in Mini- and Micro- Channel Cooling

There are a significant number of cooling techniques for micro- and mini-sized devices. One of them is mini-channel cooling. In this review, a large amount of experimental work on mini-channel cooling by various liquids is conceptually considered, in which the threshold in the removal of specific heat flux of >1 MW/m2 has been reached. A comparison of mini-channel cooling with other cooling techniques is performed. It was established that 1) micro-channel cooling has practically no thermophysical advantages over macro- or mini-channel one; 2) single-phase cooling in mini-channels gives comparable results compared to two-phase cooling; 3) only a small set of conceptual techniques allows the mini-channel heat exchanger to overcome the limit of 10 MW/m2 or to reach the heat transfer coefficient larger than 0.2 MW/(m2*K).

STUDYING CHINESE CULTURE IN THE PRACTICE OF TEACHING RUSSIAN AS A FOREIGN LANGUAGE

The paper defines the role of Chinese culture in the process of teaching Russian as a foreign language on the example of Chinese universities. Textbooks on the course “Chinese Culture” are presented, as well as some authentic video materials about China. Step-by-step work with the plots of the television program “I want to know” (Channel One) is described. The conclusion is made about the possibility of using such videos as educational material in RFL classes. The obtained results showed that the Chinese cultural component should be taken into account when developing courses for Russian language faculties at Chinese universities.

ANALISIS SALURAN PEMASARAN KERIPIK GADUNG (Dioscorea hispida L.) PADA USAHA HOME INDUSTRY DUA PUTRA JAYA DI KABUPATEN JOMBANG

This study aims to determine the form of marketing channels, marketing margins, share of the price received by producers and marketing efficiency of gadung chips in the "Dua Putra Jaya" home industry in Jombang Regency. This study uses a quantitative descriptive method. Determination of sampling is done purposively. Respondents include producers, retailers, collectors, and consumers. Data were obtained from direct observation in the field through interviews, distributing questionnaires and tracing. The results showed that the marketing channel for Gadung chips "Dua Putra Jaya" consists of three marketing channels, namely; zero-level channels consist of producers (consumers, Level 1 channels consist of producers( retailers (consumers; Level 2 marketing channels consist of producers( collectors( retailers( consumers. The total margin on the zero level channel is non existent, the level 1 marketing channel is IDR 20,000 and the level 2 marketing channel is IDR 20,000. The share of the price received by on the zero level channel does not exist, the price share on the level 1 channel is 75%; while the channel level 2 is 55.5%. There is no efficiency value in the zero level marketing channel, the marketing channel level 1 is 31.6% and the marketing channel level 2 is 35.5%, so that it can be seen that the marketing channel in channel one is more efficient because of the marketing costs incurred in channel one. less first.

Three Concentric Tube Heat Exchange With NTU-Effective Method

Heat exchanger is an exchange device with three concentric pipe tubes with direct flow used to reduce hot fluid to cold fluid using cold water fluid. the research was carried out triple pipes that flowed in the same direction with 3 variationsin the temperature pipe of the hot water fluid th with a temperature of 50oC, 55oC and 60oC with temperature of cold water fluid tc 25oC and this study used a flow rate of 0.000025 m3/s = 0.000033 m3/s and 0.000041 m3/s.The results of this study showed that the equilibrium temperature obtained from the experimental results of the effectiveness of the one-way pipeline flow was 1 = 32.99% the effectiveness of thr second channel pipe of 2 = 66.48% and ont the effectiveness of the third channel pipe of 3 = 33.57% 3rd data with a debut of 0.000025 m3/s and the effectiveness of the opposite flow the channel one pipe is 1 = 55.16% on the effectiveness of the second channel pipe of 2 = 66.48% and on the effectiveness of the third channel pipe of 3 = 60.59% it is obtained in the with to 7 with a discharge of 0.000041 m3/s.

Convective drying performance of porous moist objects under turbulent flow conditions: effects of object shape and material

Purpose The purpose of this paper is to examine the coupled heat and mass transport of different shaped porous moist objects in a rectangular channel under the effects of convective drying. Numerical simulations were performed under turbulent conditions for cylindrical, triangular and rectangular shaped different food products in a two-dimensional channel. Design/methodology/approach Finite element method was used for the unsteady problem and, effects of drying air velocity (AV) and temperature on transport mechanism were evaluated. Three different food materials were used for the circular shaped object and drying performance of the products under different conditions was compared. Findings Results showed that, changing the air temperature has an important effect on drying for all shaped objects and all materials. The same effect was seen for the AV as, increasing the velocity had positive effects on drying. Two identical objects were placed in the channel one behind the other, and this configuration showed that location of the object in the channel is also important for drying. The moisture content in the object at the front is lower than in the object behind at the end of drying. Originality/value This paper can provide technical support to optimize drying performance in the industry with comprehensive data for the process.

A new family of “megaphages” abundant in the marine environment

Megaphages, bacteriophages harbouring extremely large genomes, have recently been found to be ubiquitous, being described from a variety of microbiomes ranging from the animal gut to soil and freshwater systems. However, no complete marine megaphage has been identified to date. Here, using both short and long read sequencing, we assembled >900 high-quality draft viral genomes from water in the English Channel. One of these genomes included a novel megaphage, Mar_Mega_1 at >650 Kb, making it one of the largest phage genomes assembled to date. Utilising phylogenetic and network approaches, we found this phage represents a new family of megaphages. Genomic analysis showed Mar_Mega_1 shares relatively few homologues with its closest relatives, but, as with other megaphages Mar_Mega_1 contained a variety of auxiliary metabolic genes responsible for carbon metabolism and nucleotide biosynthesis, including a NADP-dependent isocitrate dehydrogenase [Idh] and nicotinamide-nucleotide amidohydrolase [PncC], which have not previously been identified in megaphages. Mar_Mega_1 was abundant in a marine virome sample and related phages are widely prevalent in the oceans.

Visions of Europe in Crisis: Strategic narratives and their alternatives in Russian state and independent media coverage of the 2015-16 ‘Refugee Crisis’

What stories do states tell about themselves and their neighbours, and how are these narratives challenged? This study takes the case of the European ‘refugee crisis’ of 2015-2016, a period of hostile relations between Russia and the European Union, to examine the vision of Europe disseminated by Russian state-controlled media, and the alternative offered by independent media. It analyses 609 news reports on the ‘refugee crisis’ from state-controlled broadcaster Channel One and 181 news pieces from the independent web-based outlet TV Rain. Adopting the strategic narrative framework proposed by Miskimmon, O’Loughlin and Roselle (2013), this study both provides new detail on the narratives found on Russian state-controlled media, and asks the previously unresearched question: how do independent media outlets react to the dominant narratives seen on state broadcasters? It uses a grounded theory approach to elaborate new findings on the behaviour of independent media. The importance of independent media has traditionally been understood in terms of its ability to hold government to account, but the findings of this study suggest independent media can also act as a watchdog and corrective to state-controlled media. This study thus contributes to the literature on both strategic narratives, and media theory.