Reliability level of the buried Main Pipelines Linear Part

2016 ◽  
pp. 551-558 ◽  
Author(s):  
S Pichugin ◽  
O Zyma ◽  
P Vynnykov
Keyword(s):  
Linear Part ◽  
Reliability Level ◽  
Main Pipelines

In Vitro Incorporation of Sodium Acetate-l-C14 into Leukocyte Lipids of Normal and Leukaemic Subjects as a Function of Incubation Time

1962 ◽  
Vol 02 (02) ◽  
pp. 165-172
Author(s):  
C Miras ◽  
G Lewis ◽  
J Mantzos
Keyword(s):  
Sodium Acetate ◽  
Linear Part ◽  
Lipid Synthesis ◽  
Normal Subjects ◽  
Cytostatic Agents ◽  
Time Intervals ◽  
Total Blood ◽  
Effect Of Treatment ◽  
Product Relation

Summary1. Separated leukocytes or total blood from normal subjects, untreated leukaemic patients and from leukaemic patients treated with cytostatic agents were incubated with CH3COONa-l-C14. Radioactivity of mixed lipids was measured at standard time intervals.2. The time incorporation curve observed with leukocytes from treated leukaemic patients showed after an initial linear part, a more rapid levelling off than the curves observed with leukocytes from untreated and normal subjects.3. Therefore, an indirect effect of treatment on leukocyte lipid synthesis seems to be present.4. Phospholipid and neutral lipid synthesis by leukaemic leukocytes was also studied. The results give no evidence that these fractions as a whole have any precursor-product relation.

Forecasting of Summer Monsoon Rainfall over Gangetic West Bengal, India Utilising Intrinsic Mode Functions, Linear and Neural Regression

2020 ◽  
Vol 12 (1) ◽  
pp. 60-69 ◽  
Author(s):  
Pijush Basak
Keyword(s):  
Neural Network ◽  
West Bengal ◽  
Monsoon Rainfall ◽  
Linear Part ◽  
Intrinsic Mode Functions ◽  
Quasi Biennial Oscillation ◽  
Nonlinear Part ◽  
South West ◽  
South West Monsoon ◽  
West Monsoon

The South West Monsoon rainfall data of the meteorological subdivision number 6 of India enclosing Gangetic West Bengal is shown to be decomposable into eight empirical time series, namely Intrinsic Mode Functions. This leads one to identify the first empirical mode as a nonlinear part and the remaining modes as the linear part of the data. The nonlinear part is modeled with the technique Neural Network based Generalized Regression Neural Network model technique whereas the linear part is sensibly modeled through simple regression method. The different Intrinsic modes as verified are well connected with relevant atmospheric features, namely, El Nino, Quasi-biennial Oscillation, Sunspot cycle and others. It is observed that the proposed model explains around 75% of inter annual variability (IAV) of the rainfall series of Gangetic West Bengal. The model is efficient in statistical forecasting of South West Monsoon rainfall in the region as verified from independent part of the real data. The statistical forecasts of SWM rainfall for GWB for the years 2012 and 2013 are108.71 cm and 126.21 cm respectively, where as corresponding to the actual rainfall of 93.19 cm 115.20 cm respectively which are within one standard deviation of mean rainfall.

Ground of mechanism of pay in a budget for the pipelinetransporting of hydrocarbon commodities

2019 ◽  
pp. 141-152
Author(s):  
Adam Bodіuk
Keyword(s):  
The State ◽  
Practical Significance ◽  
State Budget ◽  
Economic Interests ◽  
State Recognition ◽  
Main Pipelines ◽  
Business Entities ◽  
Combination Of Methods ◽  
Definition Of ◽  
Hydrocarbon Transport

The subject of the study is the mechanism for determining the fiscal fee forthe main transportation of hydrocarbon goods as a resource concept. The purposeof this article is to justify the nature and prospects of using, instead of currentrent, hydrocarbon fiscal-main income as a fiscal payment, which is brought intothe state budget by operators of the main hydrocarbon-transport system as business entities for their transportation of hydrocarbons and products of their processing through main pipelines appropriate to the economic requirements. Theresearch methodology is determined by a combination of methods: a) cognition:legal analysis (study of the regulatory framework for the use of rent); b) justification: abstract logical analysis (definition of the concepts of hydrocarbon fiscalmain income); c) generalization (substantiation of conclusions and proposals).Results of work. In the process of analyzing the regulatory legal acts that regulate the use of current annuity as payment to the budget for the main transportation of hydrocarbons, it was established that it is not a tax in the interpretationof PKU, since the essence does not meet the official definition of tax, does notmeet the accepted definition of the concept of rent. The accepted nature andmechanism of paying rent for the transportation of hydrogen resources and associated revenues of the state and users of the main hydrogen transport systemand the unpromising nature of its use as a fiscal payment are analyzed. Conclusions.It is proposed that the state pay for the territorial pumping of hydrocarbon resources according to our triple principle as hydrocarbon fiscal-main income, whichcorresponds to its essence, and accordingly change the mechanism for calculatingand depositing funds to treasury accounts. Since the funds come to the revenueside of the state budget, that is, inherently belong to state revenue. The creationof such a mechanism needs certain studies, justifications and government decisions. The same applies to land use, since the quality indicators of soils, wherethe laid pipelines are territorially different. In addition, there is a process ofchanging land for its intended purpose, for the property. The fee for movinghydrocarbon resources should be calculated depending on the type of transport,including pipelines, for a set of indicators: quantity and quality of goods, time,main tariffs and distance of its movement. The amount may be adjusted usingfactors officially established by the CMU. Since the pipelines are located in territorial lands, part of this fee should be transferred to the territorial local budgets.Theoretically, the economic use of trunk pipelines should be considered as a typeof economic environmental management. Therefore, this type of government revenue should be determined by a set of indicators, as well as taking into account the economic interests of business entities authorized by the CMU. Thus, theimplementation of our proposed fiscal payment is relevant, has scientific noveltyand promising practical significance, therefore, for state recognition it is proposedto include it in the Tax Code of Ukraine.

Recording of the Cavitation Phenomena when Modeling Flows in the Trunk Pipelines

2020 ◽  
pp. 7-14
Author(s):  
A.M. Sverchkov ◽  
◽  
S.I. Sumskoy ◽  
Keyword(s):  
Occupational Safety ◽  
Linear Part ◽  
Simple Wave ◽  
Pressure Profile ◽  
Real Problem ◽  
Flow Modeling ◽  
Oil Pipeline ◽  
Emergency Situations ◽  
Hydraulic Shocks ◽  
The Waves

In the article, it is proposed to use a numerical method based on the approach of S.K. Godunov to simulate boiling in a pipeline. The paper presents a statement of the real problem of modeling a water hammer, considering possible boiling of the transported liquid on a real object — an oil pipeline. When solving the problem, two variants of flow modeling when closing the valve installed at the end of the pipeline were carried out. In the first Наука и техника 14 Безопасность Труда в Промышленности • Occupational Safety in Industry • № 11'2020 • www.safety.ru case, the possibility of liquid boiling was not considered. In the second case, this opportunity was considered. The performed numerical simulation showed that in the pipeline in emergency situations, liquid columns can be formed, separated by the cavitation zones and oscillating in different phases, respectively, at the collapse of the cavitation zones, which serve as a kind of pressure dampers, the collisions of liquid columns occur, which can lead, depending on the ratio of velocities, to hydraulic shocks that occur not on the valves, but on the linear part of the pipeline (local hydraulic shocks). The waves from these collapses, interacting with each other, create the new pressure peaks that do not coincide with the pattern of simple wave circulation, which are predicted in the simulations that do not consider possible liquid boiling. As a resul t, the pressures reached in the pipeline during fluid hammer is significantly different from what it would be in the absence of boiling. When boiling is considered, the maximum reached pressures are 40 % higher. Moreover, this excess is repeated. The detailed analysis of the pressure profile in the pipeline is given in the article. Based on the results of solving this problem, it is concluded that when modeling pre–emergency and emergency situations in the pipeline, it is necessary to consider the process of possible liquid boiling, since sometimes, as in the presented case, the values of the pressure surges can be higher than the values of the pressure surges in the liquid without considering boiling, which increases the likelihood of emergency depressurization.

Sign in / Sign up

Export Citation Format

Share Document