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Development of a Mathematical Model Using Dimensional Analysis for Predicting the Friction Losses in Drip Irrigation Laterals with Cylindrical Type In-Line Emitters
Drip irrigation emitters friction loss mathematical model dimensional analysis
2009/1/13
This paper presents a prediction model developed using dimensional analysis for friction losses in drip irrigation laterals. Drip irrigation laterals with cylindrical type in-line emitters placed at d...
A mathematical model of train continuous motion uphill
heavy freight trains track line gradient locomotive tractive force train continuous motion coefficient of adhesion
2010/11/1
The determination problem of adhesion coefficient of locomotives’ wheels with rails is described in this paper. The use of methods of mathematical statistics and theory of probability provides wider p...
A mathematical model of selecting transport facilities for multimodal freight transportation
route mathematical model costs time
2010/11/1
A system of functional relationships between speed, traffic safety and costs, based on a set of criteria describing transportation quality is presented. The overall technological costs of transportati...
Complex mathematical model and optimisation of vibration volumetric treatment for surfaces of machine parts
Mathematical modeling Vibration treatment Friable medium
2010/2/10
Purpose: The objective of this work is to develop the principles of the theoretical investigation of vibration volumetric treatment for the surfaces of articles manufactured by friable dry medium and ...
A mathematical model to set speed limits for vehicles on the highway
speed limits seatbelt head-on collision impact force roads or highways
2010/11/1
The purpose of this paper is to develop a mathematical model that could guide certain speed limits for vehicles on roads. Excessive speeds on roads have been a major indirect cause of deaths on highwa...
A mathematical model for evaluating accelerated wear due to inefficient maintenance
wear rate maintenance engineering inefficient maintenance manufacturing system accelerated wear
2010/11/2
This paper examines accelerated wear due to inefficient maintenance practice in the engineering organization, with a special focus on plant machinery. It considers some important parameters, mathemati...
An input-output mathematical model for measuring the productivity of road-transport companies
productivity measurement transport company mathematical model vehicle service input output
2010/11/2
This paper presents a mathematical model for measuring the productivity of a transport company that is engaged in commercial transport activities. The model is input-output based and takes into accoun...
Mathematical model of combined parametrical analysis of indicator process and thermal loading on the Diesel engine piston
diesel engine indicator process piston thermal loading
2010/11/2
In the publication the methodical aspects of a mathematical model of the combined parametrical analysis of an indicator process and thermal loading on the diesel engine piston have been considered. A ...
A mathematical model of the vibrating system equivalent to the vehicle in the mode of emergency braking
mathematical model dynamics of the vehicle equivalent vibrating system flexible mounted and inflexible mounted vehicle masses normal deformation
2010/11/2
A mathematical model of the vibrating system equivalent to the vehicle in the mode of emergency braking is developed and the solution is offered. The problem associated with the comparison of the vibr...
Mathematical model of dynamic interaction between wheel-set and rail track
sleeper rail track tensions wheel-set factorial design dynamic parameters
2010/11/3
The main goal of this title is to show how the effects on maximum bending tensions at different locations in the track caused by simultaneous changes of the various parameters can be estimated in a ra...
A New Mathematical Model for Cluster Calculation in Tetrahedrally Bonded Amorphous Semiconductors
Cluster Calculation Bonded Amorphous Semiconductors
2010/12/15
Tetrahedraily bonded amorphous semiconductors exhibit a structure suitable for applying the so-called extended Hückel theory (EHT) to determine the electronic density of states by means of the cluster...