LogForum
The initial analysis of the work of the automated guided vehicle (AGV) in the assembly line was conducted. The method of defining a number of cells operated by one AGV was described. The method of the calculation of the optimal movement route and the stop spot in the initial setting was indicated. The formulas enabling to calculate the indicators of ways of the line functioning for various numbers...
Condition of roads in Poland, despite the on-going modernisation works is still unsatisfactory. One reason is the excessive wear caused by overloaded vehicles. This problem also applies to rail transport, although to a much lesser extent. One solution may be the system of automatic weight control of road and rail vehicles. The article describes the legal and organizational conditions of oversize vehicles...
Background: There is a growing problem of the increasing amount of unsorted municipal wastes with the resulting consequences for the environment. The aim of this study was to present a new solutions of the system for the decentral fractioning of municipal wastes, which enable simplification and improvement of the process together with the reduction of total costs. Methods: The description of the problem...
Background: Computer technologies allow more and more to model as well as to perform simulation experiments of various processes. The simulation analysis provides a better understanding of the interdependencies between various stages of production processes. Methods: The results of simulation studies were presented, the aim of them was to show the opportunities of the analysis of the process according...
Background: The economics globalization leaded to the growth of the number of international and global supply chains, possessing potentially vulnerable places due to the reason of their high duration and existence of cultural and other barriers between the participants of supply chains. Intensification of international competition, in its turn, conditioned the increase of supply intensity, reduction...
Background: The concept of integrating the theory of constraints tools in reorganizing management system in a mechanical engineering company was presented in this article. The main aim of the concept is to enable the enterprise to satisfy the customers' expectations at reasonable costs, which allows for making a profit and creating an agile enterprise in the long run. Methods: Due to the individual...
Background: Today it is virtually impossible to operate alone on the international level in the logistics business. This promotes the establishment and development of new integrated business entities - logistic operators. However, such cooperation within a supply chain creates also many problems related to the supply chain reliability as well as the optimization of the supplies planning. The aim of...
Background: Supply chains are a kind of business networks although both of these concepts are still defined in different ways in Poland. It seems that the paradigms of economics subdisciplines absorbed the knowledge of business networks in various ways and on various levels. In Poland, the networks are still treated as a novelty in many areas of management science. Methods: The paradigms of four subdisciplines...
Background: International network-carriers span the globe by linking airports on all five continents. At the core of those networks are hub-airports that serve as the centers for (inter-)national in- and outbound traffic flows. From a business model point of view, the major international carriers are so-called network-carriers, for their core concept is based on transfer-oriented hub-and-spoke-systems...
Background: As it is well know, the implementation of instruments of logistics management is only possible with the use of the latest information technology. So-called agent technology is one of the most promising solutions in this area. Its essence consists in an entirely new way of software distribution on the computer network platform, in which computer exchange among themselves not only data,...
Background. The study of control and maintenance of production inventories of deteriorating items with and without shortages has grown in its importance recently. The effect of deterioration is very important in many inventory systems. Deterioration is defined as decay or damage such that the item cannot be used for its original purpose. Methods: In this article order level inventory models have been...
Background: Traffic congestion is nowadays probably one of the greatest problems of urban transportation systems and infrastructure. Unfortunately, it frequently happens that road work investments connected with the construction of new and re-construction of old road networks, contrary to original intentions, fails to improve urban transportation or even deteriorate it significantly. Methods: The...
Background: A trend to create groups of enterprises can be observed; whose model of operation makes use of assets of large, small and medium sized companies. It is a higher level of organisational changes. This trend is described as network organisation. It is based on the so called supply chain. The Authors of this paper proposed authors' analysis dynamic configuration of the supply chain and presents...
Background: Logistic Service Providers main concern was to ensure reliability for a low price (Christopher, 2005). Dutch Logistic Service Providers still have these two aspects at the top of their list, but also have to take in a new aspect: sustainability. 88% Of the investigated Logistic Service Providers have included sustainability in the company's goals. These Logistic Service Providers have...
Background: The production efficiency is one of the most important problems of the present-day logistics, both at operational as well as strategic levels. Increasing the level of the efficiency of the production process can be achieved in many ways. The reason of the selection of the issues covering the problems of the production efficiency is the lack of a comprehensive model for analyzing the efficiency...
Background: During the last two decades Pakistan was one of the most attractive countries that received Foreign Direct Investment (FDI) among developing economies, and especially in first half of the last decade the growth was so rapid and sustainable in different industries as well as in agriculture. In Pakistani economy the role of Foreign Direct Investment is very important. Policies are clear...
Background: The nature of the relations between group members is a very important part of the integrity of the logistics process. The identification of rating among the participants is certainly the most necessary condition for the quality of the logistics process. It can distinguished four types of emergence rating: direct participation rating, direct impact rating, participation rating and impact...
Background: The results of the research conducted in March 2009 on a representative sample of the citizens of the Republic of Croatia using a highly structured survey questionnaire in households have shown that the majority of the respondents (76.6%) are familiar with organic food. In the survey, special emphasis is put on the purchase of organic food, especially among regular buyers. Methods: Regular...
Background: Deterioration is a natural process for most of the items as such it cannot be ignored in study of inventory control and management. In recent years great deal of study is devoted in developing inventory models for deteriorating items considering various practical situations. Price discount for partially deteriorated items is considerably a new concept introduced in developing various models...
Background: Background: Quadratic assignment problem (QAP) is one of the most interesting of combinatorial optimization. Was presented by Koopman and Beckamanna in 1957, as a mathematical model of the location of indivisible tasks. This problem belongs to the class NP-hard issues. This forces the application to the solution already approximate methods for tasks with a small size (over 30). Even though...