Регулятор для двигателя МС-500 – разработка, испытания, сертификация

2021 ◽  
pp. 87-92
Author(s):  
Анна Григорьевна Буряченко ◽  
Геннадий Степанович Ранченко ◽  
Андрей Олегович Таранишин
Keyword(s):  
Mathematical Model ◽  
Unmanned Aerial Vehicles ◽  
Development Process ◽  
Aircraft Engine ◽  
The State ◽  
Universal Stand ◽  
Turboprop Engine ◽  
Engine Part ◽  
The Family ◽  
Equipment Component

There are shown the features of the development process of the digital engine regulator RDTs-450M-S-500 for the MS-500V-02S turboprop engine as another modification in the family of regulators for engines of helicopter and aircraft (including unmanned aerial vehicles). These regulators are developed and serially produced by Element JSC since 2014 year, when the Appliance Design Approval of the aviation equipment component was received for RDTs-450M type. The creation of a new regulator is described as a modification of the basic design with the simultaneous refinement of a specially developed aircraft engine universal stand-imitator, which provides adjustment and verification of the parameters of the regulator. Information about the requirements differences for the rotor vibrations control compare the previous regulator modifications is given. It is shown that during the development process the need for a significant engine mathematical model correction was revealed. Element JSC specialists corrected this model originally provided by the engine developer Motor Sich JSC. The results of this correction performed based on experimental data are reflected. The results of using a new engine mathematical model, including the metering pump mathematical model, are presented. It is shown that the integration of a new mathematical model into a universal stand-imitator provided RDTs-450M-S-500 regulator adjustment and subsequent successful tests of RDTs-450M-S-500 as engine part, which confirmed the adequacy of the model. During this test, ensuring of the turbocharger rotor acceleration given level was confirmed too. There is provided here information on the regulator qualification in the Aviation Register of the Interstate Aviation Committee, based on the results of which Supplement to Applliance Design Approval for the component were received and information on the preparation for certification as part of the MC-500V-02S engine at the State Aviation Administration of Ukraine. It is mentioned that the experience of JSC "Element" specialists forces them to note the need to strengthen the methodological support of the aviation equipment components developers from the State Aviation Service.

California

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
Roberto Alvarez
Keyword(s):  
The State ◽  
Social Cartography ◽  
Family Network ◽  
The Family ◽  
The Us ◽  
Mexico Border ◽  
Police Surveillance ◽  
Us Mexico Border

I utilize my situated position as anthropologist, academician, and citizen to argue not only that we should “think” California, but also that we should “rethink” our state—both its condition and its social cartography. To be clear, I see all my research and endeavors—my research on the US/Mexico border; my time among the markets and entrepreneurs I have worked and lived with; my focus on those places in which I was raised: Lemon Grove, Logan Heights; the family network and my community ethnographic work—as personal. I am in this academic game and the telling of our story because it is personal. When Lemon Grove was segregated, it was about my family; when Logan Heights was split by the construction of Interstate 5 and threatened by police surveillance, it was about our community; when the border was sanctioned and militarized it again was about the communities of which I am a part. A rethinking California is rooted in the experience of living California, of knowing and feeling the condition and the struggles we are experiencing and the crises we have gone through. We need to rethink California, especially the current failure of the state. This too is ultimately personal, because it affects each and every one of us, especially those historically unrepresented folks who have endured over the decades.

A model of the analysis of the dynamics and structure of socio-economic development (an example of the set of the largest Polish cities in the years 1998–2015)

2019 ◽  
Vol 63 (1) ◽  
pp. 25-37
Author(s):  
Lidia Mierzejewska ◽  
Jerzy Parysek
Keyword(s):  
Principal Component Analysis ◽  
Economic Development ◽  
Development Process ◽  
Principal Component ◽  
The State ◽  
Geographical Research ◽  
Development Policies ◽  
Socio Economic Development ◽  
Development Processes ◽  
State Of Affairs

Abstract The complexity of the reality studied by geographical research requires applying such methods which allow describing the state of affairs and ongoing changes in the best possible way. This study aims to present a model of research on selected aspects of the dynamics and structure of socio-economic development. The idea was to determine whether we deal with the process of reducing or widening the differences in terms of individual features. The article primarily pursues a methodological goal, and to a lesser extent an empirical one. The methodological objective of the paper was to propose and verify a multi-aspect approach to the study of development processes. The analyses carried out reveal that in terms of the features taken into account in the set of 24 of the largest Polish cities the dominating processes are those increasing differences between cities, which are unfavourable in the context of the adopted development policies aiming at reducing the existing disparities. In relation to the methodological objective, the results of the conducted research confirm the rationale of the application of the measures of dynamics and the feature variance to determine the character (dynamics and structure) of the socio-economic development process of cities. Comparatively less effective, especially for interpretation, is the application of principal component analysis and a multivariate classification, which is mainly the result of differences in the variance of particular features.

THE IMAGE OF AN ACTIVE WOMAN IN THE SPIRITUAL HERITAGE OF EASTERN THINKERS

2020 ◽  
Vol 7 (3) ◽  
pp. 97-105
Author(s):  
Feruza Davronova ◽  
Keyword(s):  
The State ◽  
Political Activity ◽  
Spiritual Values ◽  
Social Significance ◽  
Active Woman ◽  
State And Society ◽  
The Family

The purpose of this article is to study the image of socio-political activity of women, their role and importance in the life of the state and society.In this, we referred to the unique books of orientalists and studied their opinions and views on this topic. The article considers the socio-political activity of women, their role in the state and society, the role of the mother in the family and raising a child, oriental culture, national and spiritual values, traditions and social significance of women

THE VALUE OF LOVE IN THE SYSTEM OF FORMATION OF THE PROFESSIONAL MATURITY OF THE EDUCATOR

2020 ◽  
Vol 1 (10(79)) ◽  
pp. 12-18
Author(s):  
G. Bubyreva
Keyword(s):  
Russian Federation ◽  
The State ◽  
Educational Process ◽  
Wide Range ◽  
The Family ◽  
The Russian Federation ◽  
The Government ◽  
The Individual ◽  
The Right

The existing legislation determines the education as "an integral and focused process of teaching and upbringing, which represents a socially important value and shall be implemented so as to meet the interests of the individual, the family, the society and the state". However, even in this part, the meaning of the notion ‘socially significant benefit is not specified and allows for a wide range of interpretation [2]. Yet the more inconcrete is the answer to the question – "who and how should determine the interests of the individual, the family and even the state?" The national doctrine of education in the Russian Federation, which determined the goals of teaching and upbringing, the ways to attain them by means of the state policy regulating the field of education, the target achievements of the development of the educational system for the period up to 2025, approved by the Decree of the Government of the Russian Federation of October 4, 2000 #751, was abrogated by the Decree of the Government of the Russian Federation of March 29, 2014 #245 [7]. The new doctrine has not been developed so far. The RAE Academician A.B. Khutorsky believes that the absence of the national doctrine of education presents a threat to national security and a violation of the right of citizens to quality education. Accordingly, the teacher has to solve the problem of achieving the harmony of interests of the individual, the family, the society and the government on their own, which, however, judging by the officially published results, is the task that exceeds the abilities of the participants of the educational process.  The particular concern about the results of the patriotic upbringing served as a basis for the legislative initiative of the RF President V. V. Putin, who introduced the project of an amendment to the Law of RF "About Education of the Russian Federation" to the State Duma in 2020, regarding the quality of patriotic upbringing [3]. Patriotism, considered by the President of RF V. V. Putin as the only possible idea to unite the nation is "THE FEELING OF LOVE OF THE MOTHERLAND" and the readiness for every sacrifice and heroic deed for the sake of the interests of your Motherland. However, the practicing educators experience shortfalls in efficient methodologies of patriotic upbringing, which should let them bring up citizens, loving their Motherland more than themselves. The article is dedicated to solution to this problem based on the Value-sense paradigm of upbringing educational dynasty of the Kurbatovs [15].

Status of Family Fissidentaceae in Gujarat

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
D.G. Shah ◽  
D.N. Mehta ◽  
R.V. Gujar
Keyword(s):  
Distinct Species ◽  
The State ◽  
The Other ◽  
Land Plants ◽  
Reproductive Structures ◽  
The Family ◽  
The Status ◽  
Vegetative Characters ◽  
First Time ◽  
Different Parts

Bryophytes are the second largest group of land plants and are also known as the amphibians of the plant kingdom. 67 species of bryophytes have been reported from select locations across the state of Gujrat. The status of family fissidentaceae which is a large moss family is being presented in this paper. Globally the family consists of 10 genera but only one genus, Fissidens Hedw. has been collected from Gujarat. Fissidens is characterized by a unique leaf structure and shows the presence of three distinct lamina, the dorsal, the ventral and the vaginant lamina. A total of 8 species of Fissidens have been reported from the state based on vegetative characters as no sporophyte stages were collected earlier. Species reported from the neighboring states also showed the absence of sporophytes. The identification of different species was difficult due to substantial overlap in vegetative characters. Hence a detailed study on the diversity of members of Fissidentaceae in Gujarat was carried out between November 2013 and February 2015. In present study 8 distinct species of Fissidens have been collected from different parts of the state. Three species Fissidens splachnobryoides Broth., Fissidens zollingerii Mont. and Fissidens curvato-involutus Dixon. have been identified while the other five are still to be identified. Fissidens zollingerii Mont. and Fissidens xiphoides M. Fleisch., which have been reported as distinct species are actually synonyms according to TROPICOS database. The presence of sexual reproductive structures and sporophytes for several Fissidens species are also being reported for the first time from the state.

scholarly journals Modelling the impact of delaying vaccination against SARS-CoV-2 assuming unlimited vaccine supply

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Marcos Amaku ◽  
Dimas Tadeu Covas ◽  
Francisco Antonio Bezerra Coutinho ◽  
Raymundo Soares Azevedo ◽  
Eduardo Massad
Keyword(s):  
Mathematical Model ◽  
Vaccination Campaign ◽  
Vaccination Rate ◽  
Sao Paulo ◽  
The State ◽  
São Paulo ◽  
Health Authorities ◽  
The World ◽  
The Moment ◽  
The Impact

Abstract Background At the moment we have more than 177 million cases and 3.8 million deaths (as of June 2021) around the world and vaccination represents the only hope to control the pandemic. Imperfections in planning vaccine acquisition and difficulties in implementing distribution among the population, however, have hampered the control of the virus so far. Methods We propose a new mathematical model to estimate the impact of vaccination delay against the 2019 coronavirus disease (COVID-19) on the number of cases and deaths due to the disease in Brazil. We apply the model to Brazil as a whole and to the State of Sao Paulo, the most affected by COVID-19 in Brazil. We simulated the model for the populations of the State of Sao Paulo and Brazil as a whole, varying the scenarios related to vaccine efficacy and compliance from the populations. Results The model projects that, in the absence of vaccination, almost 170 thousand deaths and more than 350 thousand deaths will occur by the end of 2021 for Sao Paulo and Brazil, respectively. If in contrast, Sao Paulo and Brazil had enough vaccine supply and so started a vaccination campaign in January with the maximum vaccination rate, compliance and efficacy, they could have averted more than 112 thousand deaths and 127 thousand deaths, respectively. In addition, for each month of delay the number of deaths increases monotonically in a logarithmic fashion, for both the State of Sao Paulo and Brazil as a whole. Conclusions Our model shows that the current delay in the vaccination schedules that is observed in many countries has serious consequences in terms of mortality by the disease and should serve as an alert to health authorities to speed the process up such that the highest number of people to be immunized is reached in the shortest period of time.

scholarly journals Organic Rankine cycle for turboprop engine application

2021 ◽  
pp. 1-21
Author(s):  
G.E. Pateropoulos ◽  
T.G. Efstathiadis ◽  
A.I. Kalfas
Keyword(s):  
Waste Heat ◽  
Organic Rankine Cycle ◽  
Weight Ratio ◽  
Rankine Cycle ◽  
Aircraft Engine ◽  
Working Fluid ◽  
Engine Fuel ◽  
Exhaust Gases ◽  
Waste Heat Recovery System ◽  
Turboprop Engine

ABSTRACT The potential to recover waste heat from the exhaust gases of a turboprop engine and produce useful work through an Organic Rankine Cycle (ORC) is investigated. A thermodynamic analysis of the engine’s Brayton cycle is derived to determine the heat source available for exploitation. The aim is to use the aircraft engine fuel as the working fluid of the organic Rankine cycle in order to reduce the extra weight of the waste heat recovery system and keep the thrust-to-weight ratio as high as possible. A surrogate fuel with thermophysical properties similar to aviation gas turbine fuel is used for the ORC simulation. The evaporator design as well as the weight minimisation and safety of the suggested application are the most crucial aspects determining the feasibility of the proposed concept. The results show that there is potential in the exhaust gases to produce up to 50kW of power, corresponding to a 10.1% improvement of the overall thermal efficiency of the engine.

The Family, the Law and the State

Living ◽  
1940 ◽  
Vol 2 (1) ◽  
pp. 20
Author(s):  
Max Rheinstein
Keyword(s):  
The State ◽  
The Family ◽  
The Law
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