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Assessment of the quality of electrical service in industrial sector in
Lubumbashi, DR Congo
Banza Wa Banza Bonaventure
Abstract:
Obviously, there is a great analogy between the size of industry and
the need for electricity. Overall, large industries have high electricity
needs, particularly because of various energy-intensive industrial
activities. The main objective of this article was to assess the quality
of electrical service in industrial sector in Lubumbashi. The survey
covered 60 industries in the city of Lubumbashi out of a total of 125,
representing approximately 48%, this percentage thus surveyed
makes it possible to say that the sample is representative, exceeding
30%. The different industries have been grouped into 5 following
categories: mining industries, food industries, foundries, plastic and
semi-industrial.Whatever the type of industry, the connection to the
electric grid is the connection mode used at 100%. The use of
generators by industries may be justified by the fact that some of
these industries experience some hours or even some day of power
cuts. To alleviate this situation, the use of generators is a necessity
for these industries. Globally, the majority of industrialists describe
bad, the quality of the electrical service they use. This perception
shows that the consumption needs of manufacturers are far from
being met. In the context of an increasing growth of consumption
needs in the industrial sector, the repercussions are felt in households
where the quality of electricity they use is deteriorating
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1-6
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Minimum calculation of an integral with differential constraints
Farid Pour Ofoghi
Abstract:
The aim of this paper is to minimize a constrained integral in the form of differential
equations with constraints.For this purpose, we have learned many methods of obtaining
functions' extremum in
n
and functions' extremal in calculus of variations. Then, we
consider optimal control theory and look at it as a classical development of Euler–
Lagrange theory. In such development, we are dealing with acceptable functions that are
less well-behaved compared to normal functions. All of these cases reach us to
Pontryagin's maximum principle (P.M.P).
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7-13
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VIBRATIONAL MIXING OF FREE-FLOWING FODDER MIXTURES
Raupov Turgun Abduvaitovich
Abstract:
In the article theoretically and experimentally, the ranges of variation of the basic regime and
geometric parameters of the vibratory installation, at which the continuous process of preparation is
realized a multicomponent mixture with guaranteed quality. Mathematical models of pseudo-continuous and discrete movement of bulk material on an inclined vibrating tray. On the basis of
the proposed models and obtained analytical dependences, a simulation model of the process of
continuous preparation of multicomponent mixtures, which allows to predict quality of the finished
mixture. A physical model is proposed based on the functional connection of the potential energy
of a portion bulk material and the rate of change of this energy under the influence of vibration,
which allowed obtain analytical dependencies for calculating the basic parameters characterizing
the distribution loose material relative to the inclined vibrating tray
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14-19
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COLLECTION OF LOCAL WATER FLOW FOR IRRIGATION VINEYERS IN PRE-FORGARD AREAS
Jumanov Azamat Norbutaevich,Turaev Fozil Jurakulovich
Abstract:
The article deals with water supply of farmers in mountainous and fertile
farms, water saving methods in vineyards, construction of vineyards with climate change,
sustainable technologies for water use for irrigation of crops, water-saving irrigation
technologies and their potential, water user associations and their problems, solving the water
deficit problem and effective use of irrigation (rainwater), increased soil fertility, drip irrigation,
emission control, increased production land use in mountainous and foothill areas. The
development of viticulture will meet the needs of the local population in fruits and grapes,
which, in turn, will help enrich the domestic market with cheap and high-quality products.The
article considers new modern and non-traditional methods of irrigation (long-term non-traditional irrigation of intensive orchards and vineyards), by means of which it is possible to
continuously supply plants with water, and if necessary, with nutrients. Dosed supply of water
during the irrigation period allows to create the necessary moisture regime, increase the yield of
agricultural crops. The article deals with the work done with the above-mentioned local methods
of sewage collection, as well as recommendations on the irrigation of vineyards in the foothills.
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20-27
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FEATURES OF APPLICATION OF FERTILIZERS IN DRY IRRIGATION
Gulamov Sardor Boxodirovich
Abstract:
In this article, the development of innovative irrigation technology and technical
means of a low-pressure drip irrigation system of domestic production, aimed at creating favorable
conditions for the growth and development of crops, increasing the productivity of irrigated land,
irrigation water, increasing the value of KIV, CWI, efficiency of on-farm irrigation systems is the task
which allows solving the issues of sustainable primary economic growth of agriculture and water
management in our country
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28-33
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IMPACT OF CURRENT LEAKAGE IN HIGH SPEED VLSI SYSTEM USING LOW
POWER MANAGEMENT TECHNIQUE: AN ANALYSIS
SupratimSaha,Dr. Amit Kumar Jain
Abstract:
This article explores the experimental analysis of current leakage in high speed VLSI system
using low power management technique. As we know that theHigh-Speed and Low-power are
the major challenges for today’s electronics industries. Power dissipation is an important
consideration in terms of Speed/Performance and space for VLSI Chip design. Power
management techniques are generally used to designing low power circuits and systems. This
thesis presents the various VLSI Design Methodologies for high Speed and Low power
management techniques that can meet future challenges to designs low power high
speed/performance circuits, algorithm level design. It also describes the many issues regarding
circuits design at architectural, logic and device levels and presents various techniques to
overcome difficulties. Present generation of electronic design scenario demands low power
architectures. In earlier days, power was secondary as the field was premature and main concerns
of design engineers were size, throughput and cost. However trade off exists between the metrics
namely, size, throughput, cost and power according to the famous design metric competition
theory of VLSI systems wherein improving one deteriorates the other metric. The performance
of any circuit is affected greatly by its components
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34-42
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ATTEMPTING CLASSIFICATION OF STRUCTURED,
COMMUTATIVE AND CENETEROIDAL MATRICES
Preetika,Dr. Rajiv kumar
Abstract:
The word "matrix" comes as a result of the Latin term for "womb" due to the manner in which that the
matrix functions like a womb for the information which it holds. Matrices are of essential value of 3D
math, exactly where they're largely utilized for describing the connection between 2 coordinate
spaces. They make this happen by defining a computation to change vectors from one coordinate
room to the next. The contemporary technique of matrix remedy was created by a German
mathematician as well as scientist Carl Friedrich Gauss. You will find a variety of kinds of matrices
utilized in various contemporary areas. We present & talk about the various kinds of matrices that
play crucial roles in different areas
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43-47
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ALGEBRAIC PERSPECTIVES OF GROUP THEORY AND ITS APPLICATIONS: A
STUDY
Rahmaan Khan,Dr.Ashwini Kumar Nagpal
Abstract:
The study of groups, which are systems that comprise of a set of components and a binary
operation that can be connected to two components of the set, which together fulfill certain
adages these necessitate that the group be shut under the operation (the combination of any of the
two components creates another component of the group), which complies with the acquainted
law, which contains a component of character (which, joined with some other component, leaves
the last mentioned) no change) and every component has a backwards (which is joined with a
component to deliver the character component). In the event that the group likewise fulfills the
commutative law, it is known as the commutative or abelian group.An algebraic structure is a set
of elements (the carrier of the structure) with an operation (equally denoted application) that
matches any two members of the set uniquely onto a third member. The specificity of an
algebraic structure is given by the axioms that it satisfies. One of the most basic algebraic
structures is the group. This article is main focussed on algebraic perspectives of group theory
and its applications.
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48-53
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Study of Universal Coefficient Theorem for Homology
Dr Gopal Kumar
Abstract:
This paper will give a brief introduction to homological algebra. Starting with various exact
sequences, we will define tensor product and projective modules, which will lead to the object of
interest: homology groups, a more computable alternative to homotopy groups in higher
dimensions. Given a chain complex of free abelian groups Cn, is it possible to compute the
homology groups Hn(C; G) of the associated chain complex of tensor product with G just in
terms of G and Hn(C). The Universal Coefficient Theorem for Homology provides an algebraic
formula that answers this question.
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54-64
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Characteristics of Polyaniline synthesized in green medium Averrhoa bilimbi
fruit extract
Sarun Kumar T.R,Smitha T.R.,Prema K.H.
Abstract:
Organic semiconductors are one of the active research fields in chemistry having promising
applications in science and technology. These are used extensively in nano electronic circuits. In
recent years, centre of attraction of researchers is the development of proficient green chemistry
methods for the synthesis of nano particles. Green synthesis focuses on minimizing hazardous
chemicals and maximizing the use of natural resources. In this work a green medium of
Averrhoa bilimbi fruit extract was used for the synthesis of polyaniline (PANI). Properties of the
prepared sample were analysed and were compared with the sample prepared in the mineral acid
HCl
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65-74
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A STUDY ON THE PARAMETERS RELATED TO THE WEAK
CONSTRAINT VARIATIONAL DATA ASSIMILATION
PROBLEM
SANTOSHIMATA CHANDRAKANT and DR. ASHWINI NAGPAL
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80-87
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