INFLUENCE OF DESIGN FEATURES ON THE REGULATING CAPACITY OF INJECTION WATER OUTLETS

2021 ◽  
pp. 91-97
Author(s):  
V. L. SNEZHKO ◽  
◽  
D. M. BENIN ◽  
D. D. KOBOZEV

The high degree of deterioration of hydraulic structures of reclamation systems and a decrease in the efficiency of using reclaimed land required the adoption at the state level of a number of programs The high degree of deterioration of hydraulic structures of reclamation systems and a decrease in the efficiency of using reclaimed land required the adoption at the state level of a number of programs aimed at the development and modernization of the reclamation complex of Russia. Ensuring the water regime on irrigated lands requires the introduction of technological innovations that can ensure the regulation of the water supply of hydraulic structures without involving non-renewable energy sources with maximum savings in water resources. The injection flow controllers considered in the work are able to use the hydraulic energy of the flow and carry out the control process with feedback.With a decrease in water consumption downstream, the regulator changes its capacity, providing the circulation of excess incoming water at the end of the structure. The operation of water outlets is based on the injection process, in which the regulator is a kind of jet pump located under the structure blocking the channel or under the dam of a small pond. The energy of the flow passing through the pipe from the upper stream is used to inject excess water coming from the reverse wave current through the diverting channel. The results of theoretical studies, physical and numerical modeling of injection water outlets with various forms of execution of the flow part are presented. Particular attention is paid to the execution of the output section of the structure – the diffuser and the prismatic section in front of it – the mixing chamber. The values of the hydraulic resistance coefficients of pyramidal diffusers with a high degree of expansion were studied and obtained for the first time. To prevent flow failure, the diffusers are equipped with shortened separate walls. The processing of the experiment data is carried out in accordance with international standards. When numerically modeling the flow in the regulator, the data of the physical experiment are used as the initial and boundary conditions. There is given a comparison of the fl ow rate of the studied regulators, the values of the parameters necessary for performing the hydraulic calculation are determined.

Author(s):  
V. L. Tolstykh

INTRODUCTION. The concept of nationality of an aircraft is borrowed from the law of the sea; it is currently enshrined in the Chicago Convention on International Civil Aviation of 1944. Registration performs several functions: firstly, it allows the identification of an aircraft; secondly, it implies the obligation of the state of registration to control its operation; thirdly, it implies the responsibility of the state of registration in the event of failure to exercise such control.MATERIALS AND METHODS. The research was done on the basis of the Chicago Convention of 1944, Cape Town Convention on International Interests in Mobile Equipment 2001, Protocol on Matters Specific to Aircraft Equipment 2001, acts of Russian legislation and acts of offshore legislation, primarily Air Navigation Order 2013. The research involved historical method, methods of formal logic and comparative legal method. The main objective was to develop proposals aimed at increasing the attractiveness of the Russian registry.RESEARCH RESULTS. The Russian registration system has several shortcomings: lack of a codified act; presence of two authorities with overlapping competencies (the Interstate Aviation Committee and the Federal Air Transport Agency); high customs duties on the import of certain types of aircrafts. To this should be added the shortcomings relating to the organization of the registration process: a high degree of its bureaucratization, lengthiness, shortage of qualified specialists, etc. The registration of an aircraft in offshore, on the contrary, implies a number of advantages: speed and “friendliness”, confidentiality of beneficiary data, absence of VAT and customs duties, quality of airworthiness control.DISCUSSION AND CONCLUSIONS. The problem can be resolved imperatively – by fixing the strict obligation of airlines to register aircraft in the domestic registry under the threat of non-issuance or revocation of the operator’s certificate. If, however, this registry does not meet international standards, this measure will adversely affect the development of the aviation sector and the safety of transport. In this regard, the creation of a transparent, holistic and efficient registration system meets the interests of the state no less than the interests of airlines. With regard to the Russian Federation, achieving this goal involves completing a number of tactical tasks, aimed at simplifying formalities, ensuring recognition of the Russian registration system and stimulating trade turnover.


Author(s):  
Inna Makarchuk ◽  
Oksana Perchuk ◽  
Oksana Perchuk

However, with all the prerequisites for the development of tourism, Ukraine did not pay due attention to the development of this sector of economy. Due to this situation, the problem of increasing the tourist attractiveness of the territory remains urgent. Having an important potential of natural resources, historical and cultural monuments, considering the great importance of the tourism industry, it has been declared one of the priority directions of development of the national economy at the state level in Ukraine. Among Ukrainian scientists, the development of tourist infrastructure was studied by A. A. Beidik, M. P. Malskaya, A. T. Makarov, F. Kifiak, A. A. Lubitseva, S. P. Kuzyk, I. M. School. Certain infrastructure elements of the tourist and recreational complex of the Kiev region are analyzed in the works of L. M. Volovik, V. L. Glibovets, A. M. Poltavets, S. V. Rogovsky, etc. Pereiaslav-Khmelnitsky district is a territory of historical land, which is located in the eastern part of the Kiev region. It played a great importance in the processes of formation of Ukrainian nationality and state. This land was a source of inspiration for Taras Shevchenko himself and other outstanding heroes of Ukraine. It is over-saturated with both sad and joyful big events. Pereiaslav-Khmelnitsky district, without exaggeration, can be called a unique place on the map of our country. The purpose of the study is to assess tourist resources and develop the tourist infrastructure of Pereiaslav-Khmelnitsky district, to determine its role in creating the basis for the economic growth of the district as a whole and to improve the tourism sector in particular. The study of this problem is based on general scientific methods of knowledge of economic phenomena and processes (analysis and synthesis, system approach, dialectical method, etc.). It was revealed the conditions of formation and the current state of formation of tourist infrastructure in Kyiv region, in particular in Pereiaslav-Khmelnitsky district. It was made the comparison of the state of its components (communication network, accommodation establishments, and mass catering establishments). Without exaggeration, Pereiaslav-Khmelnitsky district can be called a unique place on the map of our country. Today, there are 51 settlements, 15 objects of nature reserve fund of Ukraine, among which is a park-monument of landscape art of a national importance «Tashanskyi» and National natural park «Biloozerskyi», and there are more than 10 large and small rivers and hundreds of potential tourist sites that need to be preserved, promoted and attracted by tourists. It was highlighted the key advantages inherent in the tourism infrastructure of Kyiv region. The value of material and technical base and tourism infrastructure has been established as a determining factor for increasing the tourist attractiveness of Pereiaslav-Khmelnitsky district. The main reasons for hindering the development of the tourist services market in Pereiaslav-Khmelnitsky district are: the imperfection of the system of state regulation of tourist activity; the low level of investments in the development of the material base of tourism; the inconsistency of tourist establishments with international standards; the insufficient provision of the tourism industry by qualified specialists; the extremely unsatisfactory condition of transport infrastructure; the low awareness of potential consumers of the tourism product. It was highlighted the main problems in the formation and promotion of tourism products of the district, as well as the problems of development of existing tourism potential, which is certainly one of the richest in Ukraine. It was offered the directions of development of tourist infrastructure market in Pereiaslav-Khmelnitsky district and activation of using of tourist potential in the area.


2011 ◽  
Vol 12 (1) ◽  
pp. 3-11
Author(s):  
Janet Deppe ◽  
Marie Ireland

This paper will provide the school-based speech-language pathologist (SLP) with an overview of the federal requirements for Medicaid, including provider qualifications, “under the direction of” rule, medical necessity, and covered services. Billing, documentation, and reimbursement issues at the state level will be examined. A summary of the findings of the Office of Inspector General audits of state Medicaid plans is included as well as what SLPs need to do in order to ensure that services are delivered appropriately. Emerging trends and advocacy tools will complete the primer on Medicaid services in school settings.


2013 ◽  
Author(s):  
Stephen Buka ◽  
Jasmina Burdzovic ◽  
Elizabeth Kretchman ◽  
Charles Williams ◽  
Paul Florin

2020 ◽  
Vol 1 (2) ◽  
pp. 189-193
Author(s):  
Aisha Naiga ◽  
Loyola Rwabose Karobwa

Over 90% of Uganda's power is generated from renewable sources. Standardised Implementation Agreements and Power Purchase Agreements create a long-term relationship between Generating Companies and the state-owned off-taker guaranteed by Government. The COVID-19 pandemic and measures to curb the spread of the virus have triggered the scrutiny and application of force majeure (FM) clauses in these agreements. This article reviews the FM clauses and considers their relevance. The authors submit that FM clauses are a useful commercial tool for achieving energy justice by ensuring the continuity of the project, despite the dire effects of the pandemic. Proposals are made for practical considerations for a post-COVID-19 future which provides the continued pursuit of policy goals of promoting renewable energy sources and increasing access to clean energy, thus accelerating just energy transitions.


2020 ◽  
Vol 4 (2-3) ◽  
pp. 170-184
Author(s):  
Suvi Nenonen ◽  
Kaj Storbacka

In reconnecting marketing to more plastic and malleable markets, we need more understanding about market evolution. In this research we explore how to assess the state of a market, and how the roles of a market-shaping actor vary depending on this state. We view markets as configurations of 25 interdependent elements and argue that well-functioning markets have a high degree of configurational fit between elements. The level of configurational fit describes the state of a market as a continuum from low to high marketness. The clout of a market actor to influence a market configuration is an amalgamation of the actor’s capabilities, network position and relative power. By exploring marketness and clout as contextual contingencies, we identify four market-shaping roles: market maker, market activist, market champion, and market complementor. The focus of a market-shaping actor, in terms of which elements to influence and in which order, vary significantly between roles.


2019 ◽  
Vol 118 (12) ◽  
pp. 32-48
Author(s):  
Mr. Arun Gautam ◽  
Dr. Saurabh Sharma ◽  
CA Narendra Kumar Bansal

GST that is Goods and Services Tax has been in compel since first July, 2017 and which is, in constrain on numerous countries globally and they all were thinking about it as their business assessment framework. The principle reason for GST is to realize single tax on products at both centre and the state level in the nation.


Sign in / Sign up

Export Citation Format

Share Document