scholarly journals Choosing a logistics scheme for cargo delivery

2021 ◽  
Vol 2021 (4) ◽  
pp. 65-74
Author(s):  
Guzel’ I. NIKIFOROVA ◽  
◽  
Tatyana G. SERGEEVA ◽  
Keyword(s):  
Practical Importance ◽  
Gravity Center ◽  
Logistics Center ◽  
Cargo Delivery ◽  
Freight Forwarder ◽  
Selection Factors ◽  
Transport Type

Objective: To choose a logistics scheme for cargo delivery considering the vehicle selection factors, to calculate the location of a transport and logistics center. Methods: The analysis of the logistics scheme of cargo delivery, the ranking of the parameters of the transport types, and the method of determining the gravity center of the places of origin/extinguishment of the cargo traffic have been used to determine the transport and logistics center. Results: Typical logistics schemes for cargo delivery are presented, the parameters of the transport types are ranked for selecting a vehicle, the coordinates of the transport and logistics center are calculated depending on the places of origin/extinguishment and the capacity of cargo traffic, and a diagram of the next stage of designing the logistics chain is developed. Practical importance: The article presents an opportunity for a cargo owner and a freight forwarder to choose a logistics scheme for delivering cargo based on standard options and transport type ranking by a number of parameters. The sequence of determining the location of the transport and logistics center is shown

Construction of a descriptive model of the logistics chain for the delivery of goods in the interaction of rail and sea transport

2020 ◽  
Vol 17 (4) ◽  
pp. 545-551
Author(s):  
G. I. Nikiforova ◽  
Keyword(s):  
Practical Importance ◽  
Transport Modeling ◽  
Descriptive Model ◽  
Sea Transport ◽  
Railway Station ◽  
Study Methods ◽  
Cargo Delivery ◽  
Initial Stage ◽  
Effi Ciency ◽  
Multimodal Transport

Objective: To consider the issue of phased modeling of the logistics chain for the delivery of goods using rail and sea transport. To establish the goal and results of each stage of the simulation. To move to the construction of a descriptive model of the process under study. Methods: The analysis of the logistics chain of cargo delivery in multimodal transport, modeling of the logistics chain of cargo delivery with the construction of a descriptive model at the initial stage is applied. Results: A detailed diagram of the modeling stages is presented with the set goals and results of each stage. A fragment of the descriptive model was built at the stage of dispatching cargo traffi c from a railway station. Practical importance: The importance of consistent modeling of the logistic process is shown in compliance with the principles of the adequacy and effi ciency of the model. The importance of routing cargo fl ows to seaports is estimated

INTEGRATED SECURITY OF TRANSPORT LOGISTICAL SYSTEM OF MULTIMODAL TRANSPORTATION

2017 ◽  
pp. 101-119
Author(s):  
Yevgeniy Zaytsev ◽  
Yelena Konikova ◽  
Ilya Tetslav ◽  
Ivan Shaidurov
Keyword(s):  
Traffic Control ◽  
Practical Importance ◽  
Transport Processes ◽  
Security Requirements ◽  
Transport Systems ◽  
Conceptual Approach ◽  
Multimodal Transportation ◽  
Transportation Services ◽  
Cargo Delivery ◽  
Management Concept

Objective: To study the conceptual approach to the problem of integrated security, involving cooperation of transport logistical system participants of multimodal transportation (TLS SP), including aerial cargo delivery system, on the principles of the unity of information environment and intellectualization of transport systems management using the global positioning system GLONASS/GPS. Methods: The methods of TLS SP systematization and structural decomposition were applied, as well as the method of TLS SP matrix simulation, considering collaboration of the means of production in case certain operations are performed by each traffic participant on all route stages from a manufacturer to a receiver. Results: Horizontal decomposition of TLS SP was performed on the principle of the unity of the main transport process, taking into account integrated security requirements at each stage of goods traffic from a manufacturer to a receiver: making up, loading, transportation on different types of transport, cargo transfer and unloading at a receiving point. The main areas of transport intellectualization in Russia and abroad were studied. The new requirements for intellectualization of airport systems, air traffic control systems and aviation services were considered, presenting a unified aviation system and determining further directions of systems study, taking into account the perturbing factors at all stages and activities of the system in question. The suggestions on TLS SP intellectualization areas at all stages of planning and transportation fulfillment from a manufacturer to a receiver were given, making it possible to provide further development of supply chain management concept and formation of 5PL-provider transportation services at the market. Practical importance: The suggestions on the formation of TLS SP integrated security system were developed, using the latest data management technologies – intellectual transport systems, in order to improve the security and efficiency of transport processes, to minimize the delays and to improve working conditions.

scholarly journals Investigation of the logistics chain of cargo delivery in the context of choosing a freight forwarding company

2021 ◽  
Vol 2021 (4) ◽  
pp. 491-498
Author(s):  
Guzel I. NIKIFOROVA ◽  
Keyword(s):  
Quality Function Deployment ◽  
Practical Importance ◽  
Logistic Models ◽  
Expert Assessment ◽  
Delivery Methods ◽  
Logistics Company ◽  
Cargo Delivery ◽  
Initial Stage ◽  
Freight Forwarding ◽  
The Given

Objective: The choice of a logistics and freight-forwarding company by the cargo owner at the initial stage of planning the logistics chain of cargo delivery. Methods: The analysis of the logistics chain of cargo delivery, methods of deploying quality functions when choosing a transport company and expert assessment are applied. Results: A system of traditional and logistic models of forwarding, a scheme for differentiating the requirements of a cargo owner is presented, a matrix for the deployment of quality functions is built, an example of expert assessment of the parameter of a transport and logistics company is developed. Practical importance: Using the quality function deployment method makes it possible to translate the cargo owner’s requests into specifi cations and requirements. The competitiveness of the given transport and logistics company is assessed.

Practical Importance of Spatial Resolution and Analytical Sensitivity in AEM X-ray Microanalysis

1990 ◽  
Vol 48 (2) ◽  
pp. 432-433
Author(s):  
J. Zhang ◽  
D.B. Williams ◽  
J.I. Goldstein
Keyword(s):  
Spatial Resolution ◽  
Practical Importance ◽  
Beam Current ◽  
Specimen Thickness ◽  
Analytical Sensitivity ◽  
Related Factors ◽  
X Ray ◽  
Probe Size ◽  
Excitation Volume ◽  
Two Parameters

Analytical sensitivity and spatial resolution are important and closely related factors in x-ray microanalysis using the AEM. Analytical sensitivity is the ability to distinguish, for a given element under given conditions, between two concentrations that are nearly equal. The analytical sensitivity is directly related to the number of x-ray counts collected and, therefore, to the probe current, specimen thickness and counting time. The spatial resolution in AEM analysis is determined by the probe size and beam broadening in the specimen. A finer probe and a thinner specimen give a higher spatial resolution. However, the resulting lower beam current and smaller X-ray excitation volume degrade analytical sensitivity. A compromise must be made between high spatial resolution and an acceptable analytical sensitivity. In this paper, we show the necessity of evaluating these two parameters in order to determine the low temperature Fe-Ni phase diagram.A Phillips EM400T AEM with an EDAX/TN2000 EDS/MCA system and a VG HB501 FEG STEM with a LINK AN10 EDS/MCA system were used.

Contrasts of planar defects in reflection electron microscopy

1993 ◽  
Vol 51 ◽  
pp. 1004-1005
Author(s):  
Feng Tsai ◽  
J. M. Cowley
Keyword(s):  
Electron Microscopy ◽  
Surface Defects ◽  
Practical Importance ◽  
Theoretical Treatment ◽  
Crystal Surfaces ◽  
Planar Defects ◽  
Surface Steps ◽  
Surface Reconstructions ◽  
Domain Boundaries ◽  
Reflection Electron Microscopy

Reflection electron microscopy (REM) has been used to study surface defects such as surface steps, dislocations emerging on crystal surfaces, and surface reconstructions. However, only a few REM studies have been reported about the planar defects emerging on surfaces. The interaction of planar defects with surfaces may be of considerable practical importance but so far there seems to be only one relatively simple theoretical treatment of the REM contrast and very little experimental evidence to support its predications. Recently, intersections of both 90° and 180° ferroelectric domain boundaries with BaTiO3 crystal surfaces have been investigated by Tsai and Cowley with REM.The REM observations of several planar defects, such as stacking faults and domain boundaries have been continued by the present authors. All REM observations are performed on a JEM-2000FX transmission electron microscope. The sample preparations may be seen somewhere else. In REM, the incident electron beam strikes the surface of a crystal with a small glancing angle.

Speech Therapy Services in a Large School System: A Six-Year Overview

1976 ◽  
Vol 7 (4) ◽  
pp. 207-219 ◽  
Author(s):  
Constance P. DesRoches
Keyword(s):  
School System ◽  
Speech Therapy ◽  
Factors Affecting ◽  
Case Load ◽  
Number Of Children ◽  
School Population ◽  
System A ◽  
Therapy Services ◽  
And Shifts ◽  
Selection Factors

A statistical review provides analysis of four years of speech therapy services of a suburban school system which can be used for comparison with other school system programs. Included are data on the percentages of the school population enrolled in therapy, the categories of disabilities and the number of children in each category, the sex and grade-level distribution of those in therapy, and shifts in case-load selection. Factors affecting changes in case-load profiles are identified and discussed.

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