scholarly journals Mathematical Modelling of the Cost Structure of the Logistics System of Shopping Malls in Budapest

2018 ◽  
Vol 46 (3) ◽  
pp. 142-150
Author(s):  
Krisztián Bóna ◽  
Ádám Róka ◽  
Dávid Lajos Sárdi
Keyword(s):  
Mathematical Modelling ◽  
Point Of View ◽  
Cost Structure ◽  
City Logistics ◽  
Shopping Malls ◽  
Physical Processes ◽  
Logistics System ◽  
The Cost ◽  
The Mathematical Model ◽  
The City

In this paper, we will present the examination of the city logistics system of shopping malls in Budapest. We will introduce the mathematical model of its cost structure which can help us to evaluate this complex system from a financial point of view. The data, we collected earlier, made it possible to simulate the physical processes of the current logistics system and to compare them with innovative new systems as well. However, in case of any new systems it is essential to compare the costs too. The mathematical modelling was based on the observed processes of three shopping malls in Budapest. We added this cost structure to the simulation model to make the simulation of costs possible, so now we have a tool which can help us comprehensively examine the current logistic system of the shopping malls in Budapest as well as a consolidation based proposed solution.

scholarly journals An Optimized Mathematical Model for Items Supplies Planning of a Logistic System

2016 ◽  
Vol 10 (10) ◽  
pp. 133
Author(s):  
Mohammad Ali Nasiri Khalili ◽  
Mostafa Kafaei Razavi ◽  
Morteza Kafaee Razavi
Keyword(s):  
Mathematical Model ◽  
Mixed Integer ◽  
Logistics System ◽  
Proposed Model ◽  
Multiple Objective Decision Making ◽  
System Requirements ◽  
Purchasing Logistics ◽  
The Cost ◽  
The Mathematical Model ◽  
First Time

Items supplies planning of a logistic system is one of the major issue in operations research. In this article the aim is to determine how much of each item per month from each supplier logistics system requirements must be provided. To do this, a novel multi objective mixed integer programming mathematical model is offered for the first time. Since in logistics system, delivery on time is very important, the first objective is minimization of time in delivery on time costs (including lack and maintenance costs) and the cost of purchasing logistics system. The second objective function is minimization of the transportation supplier costs. Solving the mathematical model shows how to use the Multiple Objective Decision Making (MODM) can provide the ensuring policy and transportation logistics needed items. This model is solved with CPLEX and computational results show the effectiveness of the proposed model.

Method of evaluating transport tasks in the army with the use of mathematical modelling

2021 ◽  
Vol 63 (1) ◽  
pp. 24-29
Author(s):  
Eliza Łagowska
Keyword(s):  
Mathematical Model ◽  
Mathematical Modelling ◽  
Empirical Evaluation ◽  
Armed Forces ◽  
Motor Vehicles ◽  
Logistics System ◽  
Material Resources ◽  
Technical Material ◽  
Development Tendency ◽  
The Mathematical Model

The article analyzes military transport operating within the Armed Forces logistics system. The proprietary method of its evaluation was presented. The technical subsystem has been characterized with the specification of the requirements it is faced with. General criteria for the assessment of the technical subsystem were identified, distinguishing the equipment, personnel, technical material resources, training and experience of soldiers, as well as their combat readiness and flexibility. The essential part of the discussion is devoted to empirical evaluation. It was made through the analysis of completed transport tasks. The research conducted with respect to the mileages of motor vehicles allows to ascertain whether the system is sufficient to meet the current needs. The mathematical model proposed allows to estimate the development tendency, based on which it is possible to formulate improvement proposals.

scholarly journals Methods of Goods Delivery to the Historic Core of the City of Šibenik During the Tourist Season

2020 ◽  
Vol 11 (1) ◽  
pp. 88-98
Author(s):  
Darijo Šego ◽  
Martina Ljubić Hinić ◽  
Ana-Mari Poljičak
Keyword(s):  
City Centre ◽  
City Logistics ◽  
Negative Effects ◽  
Logistics System ◽  
Electric Cars ◽  
Urban Freight ◽  
Urban Freight Transport ◽  
Urban Public Transport ◽  
The City

AbstractCity logistics has the goal of optimizing the entire logistics system within the city area and thus positively impact the quality of life. Different measures and initiatives, aimed at the optimisation of city logistics and reduction of the negative effects of urban freight transport are access zones or goods (freight) receiving points in the city centre, restrictions of vehicle dimensions, time schedule of delivery, consolidation strategies, use of urban distribution or consolidation centres, use of electric cars, use of urban public transport and mobility management. In the last couple of years, the city of Šibenik has experienced a tourism boom, which includes the organisation of numerous festivals in the old town core, an increase in the number of visitors, an increase in the number of catering and shopping facilities, private accommodation units, hotels and hostels. The increased number of tourists and commercial establishments also broaches the question of delivery of food and non-food products into the old part of the city, especially during the tourist season.

scholarly journals Development of the principles of mathematical modelling and management of behaviour of fine dust fractions of various nature in non-uniform electric field

2018 ◽  
Vol 226 ◽  
pp. 02029 ◽  
Author(s):  
Maksim Minkin ◽  
Denis Kuimov
Keyword(s):  
Electric Field ◽  
Mathematical Modelling ◽  
Fine Fraction ◽  
Uniform Electric Field ◽  
Ionic Wind ◽  
Fine Dust ◽  
Physical Processes ◽  
Behaviour Models ◽  
The Mathematical Model

The main fundamental objective of this work is the research of behaviour of fine dust fractions (aerosols) of various nature in non-uniform electric field (the crown category) in the conditions of action of electric, gravitational, aerodynamic and other indignations. Determination of the fundamental principles and also development of methods of management of particles of fine fraction with the set physical characteristics will allow to develop adequate mathematical behaviour models of aerosols in nonuniform electric field. In the real work mathematical modelling of electrostatic field in the device is described and the mathematical model is presented. The analysis of physical processes in the device of blocking of dust emissions – “an electrostatic lock” taking into account influence of Aerodynamic effort is carried out from such phenomenon as “Ionic wind”.

scholarly journals PRICES FOR PAID VETERINARY SERVICES IN ELISTA CITY, REPUBLIC OF KALMYKIA

2021 ◽  
Vol 246 (2) ◽  
pp. 222-226
Author(s):  
E.N. Trofimova ◽  
◽  
Keyword(s):  
The State ◽  
Cost Structure ◽  
Veterinary Services ◽  
The Cost ◽  
Relationship Of ◽  
The Relationship ◽  
The City

The article describes the methodology for setting prices for paid veterinary services when providing services for unproductive animals. The analysis of the work of the state veterinary institution for 2020 was carried out; the list of veterinary work (services) was clarified; 146 prices for paid veterinary work (services) provided by the institution for the maintenance of unproductive animals were developed, taking into account the cost structure of the institution; the methodology for using prices for the relationship of the state veterinary institution of the city with consumers of veterinary services was explained.

scholarly journals A Geometrical Structure-Based New Approach for City Logistics System Planning with Cargo Bikes and Its Application for the Shopping Malls of Budapest

2021 ◽  
Vol 11 (8) ◽  
pp. 3300
Author(s):  
Dávid Lajos Sárdi ◽  
Krisztián Bóna
Keyword(s):  
Graph Theory ◽  
Geometrical Structure ◽  
Smart Cities ◽  
Geometric Model ◽  
Geometrical Model ◽  
City Logistics ◽  
Shopping Malls ◽  
Logistics System ◽  
New Approach ◽  
Logistics Network

Nowadays, cargo bikes are seeing an ever-greater role in city logistics with an increasing number of deliveries, and it is essential to examine their future role in green and smart cities. In our work, we examine the application of cargo bikes in the city logistics system of the urban concentrated sets of delivery locations, focusing first on shopping malls, with the investigation of the geometrical structure of the logistics network. In the examined concept, the use of cargo bikes will be combined with electric trucks to make possible green deliveries of urban concentrated sets of delivery locations. In this paper, we present the experiences of the existing systems and the related research, the simulation model of the examined new concept with cargo bikes and its results, the graph theory-based geometric model of the examined city logistics system with graph theory-based notation, and the application of the new approach for Budapest. The main output of this research is the geometrical model of the urban concentrated sets of delivery locations and its application. Based on this geometrical model, it will be possible to decide about the suitability of the examined cargo bike-based city logistics concepts for given cities.

New Technical Means In The System Of Control And Logistics Of Construction

2019 ◽  
pp. 39-44
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Learning Technologies ◽  
Point Of View ◽  
Construction Process ◽  
Monitoring And Control ◽  
Logistics System ◽  
Advantages And Disadvantages ◽  
Aerial Vehicles ◽  
The Cost ◽  
And Control

The emergence and development of machine learning technologies, unmanned aerial vehicles, 3D-modeling technologies integrated with the concept of "smart construction" significantly expand the possibilities of creating and applying the concept of an effective logistics system for building production at the stage of construction and installation works. At the same time, there is a need to develop a model for creating, processing, storing, issuing and visualizing information on the state of construction production from the point of view of the material and technical support system. The article formulates and considers the concept in the form of electronic automated model with the use of unmanned aerial vehicles, presents the mechanism of monitoring and control of construction and installation works and logistics. The capabilities of unmanned aerial vehicles, such as visual inspection of buildings, measurements of structures, monitoring of the construction process, control of work performed, monitoring of the timing and cost of work, etc. were determined. Advantages and disadvantages of this system are revealed. The concept developed on the basis of the use of unmanned aerial vehicles makes it possible to create a 3D model, compare its graphic and digital characteristics with the project, identify deviations and defects, the amount of material and technical resources necessary for the uninterrupted construction process, automate and reduce the cost of the process of logistics.

scholarly journals The Proposition of a Mathematical Model for the Location of Electrical and Electronic Waste Collection Points

2020 ◽  
Vol 13 (1) ◽  
pp. 224
Author(s):  
Ítalo Ruan Barbosa de Aquino ◽  
Josenildo Ferreira da Silva Junior ◽  
Patricia Guarnieri ◽  
Lucio Camara e Silva
Keyword(s):  
Mathematical Model ◽  
Reverse Logistics ◽  
Electronic Waste ◽  
Waste Collection ◽  
Logistics System ◽  
Current Scenario ◽  
Electrical And Electronic Waste ◽  
The Cost ◽  
The Mathematical Model ◽  
Test Scenarios

Given the environmental impacts produced by the growing increase in waste electrical and electronic equipment (WEEE) and their current inadequate management, this article proposes a mathematical model to define the best location for installing WEEE collection points. The objective is to minimize the cost of the reverse logistics system concerning transportation, installation, opportunity cost, and distance between points and demand. We used a heuristic created from the greedy randomized adaptive search procedure and genetic algorithm meta-heuristics to solve the model, with part of the model variables being defined by another heuristic or by the JuMP v.0.21.2 and CLP Solver v.0.7.1 packages, to guarantee an optimal response to a subproblem of these variables. The model and its solver were written in the Julia Programming Language and executed in two test scenarios. In the first, three vehicles with small loads must collect at five points. In the second, a vehicle with greater available capacity must collect at five points. The results obtained show that the mathematical model and the heuristic are adequate to solve the problem. Thus, we understood that the proposed method contributes to the literature, given the criticality of the current scenario concerning the management of WEEE, and it can assist managers and public policymakers when providing inputs for decision-making related to the choice of the best location for installing collection points.

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