scholarly journals Ensuring Competitiveness of Logistics Service by Selecting the Type of Storing Single-Piece Cargoes

2018 ◽  
Vol 7 (4.3) ◽  
pp. 537 ◽  
Author(s):  
Iryna Trunina ◽  
Volodymyr Zahorianskyi ◽  
Olena Zahorianska ◽  
Dmytro Moloshtan
Keyword(s):  
Mathematical Model ◽  
Recursive Algorithms ◽  
Single Item ◽  
Graphic Interface ◽  
Logistics Service ◽  
Single Piece ◽  
Software Product ◽  
Logistics Services ◽  
Rack Storage ◽  
Selection Of

Efficient transportation of cargoes from the point of the cargo traffic start to the final consumers can significantly influence competitiveness of logistics service that leads to the necessity of analysing the known approaches to substantiating the selection of the storing type (pile storage or rack storage) when warehousing single-piece cargoes. To formalize the problem of selection based on the analysis, the authors develop the model, which is suggested to use the quantity of the stored pallets with single item cargoes. The calculations according to the suggested mathematical model envisage intensive computations with repeated calculations; therefore the corresponding recursive algorithms are developed for this mathematical model. The corresponding recursive algorithms for the model are easily realized in the software product. The developed algorithms can be easily realized in the software product with graphic interface on the enterprises delivering logistics services to enhance their competitiveness.  

Distribution Mathematical Model of Logistics Platform Based on Computer Evaluation System

2014 ◽  
Vol 543-547 ◽  
pp. 4366-4369
Author(s):  
Wei Xun ◽  
Guo Ping Cheng
Keyword(s):  
Mathematical Model ◽  
Evaluation System ◽  
It Services ◽  
Computer Evaluation ◽  
Logistics Service ◽  
Logistics Services ◽  
Rational Choices ◽  
Enterprise Logistics ◽  
Integrated Logistics ◽  
The Way

Integrated logistics platform based on the computer ebaluation system. It services for e-commerce businesses on the platform in the way of helping them choosing a better logistics service. In this paper, we explained the business allocation methods on the platform of integrated logistics, and on this basis, to build a business distribution mathematical model that helps make rational choices for enterprise logistics services provided.

scholarly journals Energy Savings Analysis in Logistics of a Wind Farm Repowering Process: A Case Study

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5452
Author(s):  
Andrzej Jezierski ◽  
Cezary Mańkowski ◽  
Rafał Śpiewak
Keyword(s):  
Cost Effectiveness ◽  
Wind Farm ◽  
Energy Savings ◽  
Wind Farms ◽  
Business Practice ◽  
Optimal Variant ◽  
Logistics Service ◽  
Logistics Services ◽  
Selection Of

The process of wind farm operation requires proper logistics services, consisting of the supply of all resources necessary in this process. A critical moment in the operation of wind farms is the implementation of the repowering process, in the form of replacement of the basic elements of wind farms: blades, hub rotors, nacelles or even towers. The replacement of these basic elements of the wind farm relates to the necessity to provide logistics services for heavy and oversized deliveries. Therefore, this article presents a unique analysis of logistics processes related to wind farms. Therefore, the aim of the article is to identify the most energy-saving variant of logistics service of the wind farm repowering process. However, the criterion of selecting the optimal variant is based on the original methodology of energy consumed during logistics services, as opposed to the traditionally used cost-effectiveness criterion. The SolidWorks software with other methods and tools were used for this purpose. As a result of the conducted research, it was found that the differences in individual variants of logistics service implementation may range from 4.7% to even 19.4% in terms of energy savings. Due to the increasingly common need to implement the process of repowering wind farms, the presented original methodology for the analysis and selection of the delivery variant with lowest energy consumption fills the literature gap and formulates a model of business practice, thus constituting both theoretical and practical value.

DIFFERENTIAL EQUATIONS FOR TRAIN STARTING WITH ELASTIC CONNECTIONS

2021 ◽  
Vol 2 ◽  
pp. 18-26
Author(s):  
I.P. POPOV
Keyword(s):  
Mathematical Model ◽  
Differential Equations ◽  
Friction Force ◽  
Static Friction ◽  
Longitudinal Vibrations ◽  
Maximum Tension ◽  
Inert Mass ◽  
The Moment ◽  
Elastic Couplings ◽  
Selection Of

The starting mode for the train is the most difficult. An effective method of pulling is the selection of coupling clearances. In this case, the cars are set in motion sequentially and the inert mass, as well as the static friction force immediately at the moment of starting, are minimal. This method has two significant drawbacks - a small fixed value of the gaps in the couplings and the shock nature of the impulse transfer. These disadvantages can be avoided by using elastically deformable couplings. The aim of this work is to construct a mathematical model of "easy" starting of a train with elastic couplings. The softening of the train start-off mode is essentially due to the replacement of the simultaneous start-off of the sections with alternate ones. To exclude longitudinal vibrations of the composition, after reaching the maximum tension of the coupling, the possibility of its harmonic compression should be mechanically blocked.

scholarly journals Framework built on resource based view for outsourcing strategy on hiring logistics service provider

2018 ◽  
Vol 25 (3) ◽  
pp. 458-484 ◽  
Author(s):  
Geraldo Cardoso de Oliveira Neto ◽  
Moacir Godinho Filho ◽  
Marilson Alves Gonçalves ◽  
Benny Kramer Costa ◽  
Dirceu da Silva ◽  
...  
Keyword(s):  
Supply Chain ◽  
Service Provider ◽  
Theoretical Study ◽  
Resource Based View ◽  
Chain Management ◽  
Logistics Service ◽  
Logistics Service Provider ◽  
Outsourcing Logistics ◽  
Selection Of ◽  
Operational Structure

Abstract The process of Outsourcing Logistics Service (OLS) is deemed incipient in the management of organizations, not only because of the operational problems it presents, but also of its difficulties fitting into the company’s overall strategy. The present theoretical study, building on the resource-based view of the firm, aims to propose a framework that guides managers in developing strategies to OLS starting from the operational structure to establish the necessary resources, capabilities, and routines. In addition, taken into account is the importance of analyzing risks and resilience in the environment, concomitantly with the analysis of the operational structure. Thus, four questions were developed, aimed at leading operations managers to reflect on the development of the strategy. The framework proposed for OLS considers the supply chain management department as the main interlocutor of the strategy. This framework can be adapted according with the necessity of the contracting company, and its main intention is to enable the establishment of a project that contemplates the necessary resources, the capabilities (criteria), and the operational routines (subcriteria) for the selection of a logistics service provider in the market, one which truly addresses the needs of the organization. This framework is already intrinsic in the practical actions of the authors, because of their extensive advisory activity over the last five years in OLS to logistics service provider. In addition, it is worth mentioning that so far in the tacit applications of this framework there has been no application similar to another.

Logistics service providers’ engagement in disaster relief initiatives

2017 ◽  
Vol 9 (3/4) ◽  
pp. 269-291 ◽  
Author(s):  
Alessandra Cozzolino ◽  
Ewa Wankowicz ◽  
Enrico Massaroni
Keyword(s):  
Service Providers ◽  
Disaster Relief ◽  
Humanitarian Logistics ◽  
Content Type ◽  
Logistics Service ◽  
Disaster Relief Operations ◽  
Logistics Service Providers ◽  
Logistics Services ◽  
Relief Operations ◽  
Humanitarian Supply Chain

Purpose The purpose of this paper is to explore the contribution of logistics service providers’ (LSPs) initiatives to disaster relief and how LSPs are engaged with humanitarian sector. In recent years, the importance of logistics services in disaster relief operations and the capacity of LSPs to improve humanitarian supply chain management have become an increasingly interesting topic for both professionals and academics. Design/methodology/approach This research follows a qualitative approach based on multiple case studies. Findings The current research, after considering the differences and similarities among collaboration, cooperation and coordination and underlining how crucial these mechanisms are in the humanitarian context, explains the contribution of LSPs to relief operations alongside humanitarians. Research limitations/implications There has been increased interest in humanitarian logistics on the part of international academic and professional communities. This study constitutes a first exploratory step in the research to build a platform for benchmarking analysis of logistics services that aims to ensure the effective implementation of social responsibility principles. Practical implications The managerial implications arising from the research offer a range of current responsible actions from which strategic and operative directions to contribute can be derived. Originality/value Humanitarian logistics represents a crucial field in logistics management. This paper addresses the innovative socially responsible initiatives undertaken by the main international LSPs in the area of humanitarian logistics.

scholarly journals Evaluation and Selection of Nigerian Third-Party Logistics Service Providers Using Multi-Criteria Decision Models

2021 ◽  
Vol 12 (1) ◽  
pp. 135-146
Author(s):  
E.A. Ejem ◽  
C.M. Uka ◽  
D.N. Dike ◽  
C.C. Ikeogu ◽  
C.C. Igboanusi ◽  
...  
Keyword(s):  
Service Providers ◽  
Service Level ◽  
Decision Makers ◽  
Third Party ◽  
Decision Models ◽  
Third Party Logistics ◽  
Logistics Service ◽  
Logistics Service Providers ◽  
Selection Of

Abstract This paper is focused on solving the evaluation and selection of 3PL’s by applying multi-criteria decision-making methods. Nigerian Breweries, Nigerian Bottling Company (NBC), AG Leventis, Kobo logistics, and Flour Mills of Nigeria (FMN) were understudied. The main criteria on which evaluation is based were established: Cost, Service level, Financial Capability, Reputation and Long-term relationship. A combination of two quantitative models was adopted in the study. Relevant data were collected through an oral interview with managers and key decision-makers at the companies. SWARA was first applied to the collated data to determine the relative weights of the criteria. Afterwards, the TOPSIS was applied to the weights developed using SWARA and on the performance of the selected service providers. After the analysis, the best service provider was identified as supplier 2 while the worst was supplier 5.

scholarly journals Analysis of the Modified Construction of the Column Mechanism MacPherson

2018 ◽  
Vol 19 (11) ◽  
pp. 41-44
Author(s):  
Marek Kwietniewski ◽  
Tadeusz Bil
Keyword(s):  
Mathematical Model ◽  
Steering Wheel ◽  
Passenger Cars ◽  
Proper Selection ◽  
Front Suspension ◽  
Change Of Direction ◽  
Partial Elimination ◽  
Selection Of

The McPherson column name comes from the inventor of this Earle S. MacPherson solution, which was first manufactured at the Ford plant in 1949. This is one of the most commonly used types of front suspension in popular passenger cars. The advantage of this type of suspension is a compact construction, but the disadvantage is. The influence of the damping motion on the position of the steering wheel may result in an unintentional change of direction of travel. At the same time, there is a slight additional tilt of the wheels when the "spring" movement. In the proposed solution, partial elimination of this type of incorrectness is proposed by changing the type of connection of the steering rod end to the steering wheels of the vehicle. The introduced change consists in replacing one of the spherical joints in these joints into two rotary joints. Such a change introduces a mathematical model describing the behavior of the suspension under the influence of the depreciation of additional parameters. Proper selection of these parameters allows for significant reduction of unnecessary direction changes during driving. The described model of the structure of the mechanism allows to analyze the influence of all its dimensions on the selected parameters of the behavior of the wheels during the ride, resulting from the movement of the suspension and steering.

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