Systems Analysis of Driving Simulation

1964 ◽  
Vol 6 (4) ◽  
pp. 383-392 ◽  
Author(s):  
Lawrence E. Schlesinger ◽  
Bernard Karmel ◽  
Stanley Cohen
Keyword(s):  
Systems Analysis ◽  
System Analysis ◽  
Careful Analysis ◽  
Point Of View ◽  
Driving Simulation ◽  
Driving Simulators ◽  
Response Characteristics ◽  
Simulation Process ◽  
Experimental Variation ◽  
System 2

System analysis procedures as applied to driving simulators must accomplish several bask tasks: (1) they must identify the system components and interactions that are to be simulated; (2) they must specify the degree of simulation of each component in the system. In this case, the extent to which the automobile and the environment are to be reproduced by the simulator must be adequately established; (3) the input and output to the simulator, plus the process of introducing variability and measuring the response to it, must be subjected to careful analysis; (4) finally, the simulation process requires that a major portion of any driver-related systems analysis be devoted to an examination of each component in the system, its input, functioning, and response characteristics. The basic components of the driving situation were analyzed from a systems point of view. In order to summarize some existing simulation attempts, the particular focus of each study with respect to the component or method of handling a component, was utilized. The driving simulation literature was reviewed to provide an integrated conceptual framework of the accomplishments of research in this field The basic component relations were explored and the primary functions of simulation were then analyzed. These primary functions were: (1) the introduction of experimental variation into the system; (2) the representation of the components of the system; (3) the measurement of component response; and (4) the measurement of system performance.

Payment System Analysis

2016 ◽  
pp. 209-224
Author(s):  
Alexander Pascal Müller
Keyword(s):  
Central Bank ◽  
Systems Analysis ◽  
System Analysis ◽  
Central Banks ◽  
Payment System ◽  
Point Of View ◽  
Broad Sense ◽  
Payment Systems ◽  
Practical Point ◽  
System Data

Together with the growing importance of stable and efficient payment systems, payment systems analysis has gained importance in the recent years. Central banks play the most prominent role in this field since they have unique responsibilities but also unique opportunities. This chapter will systematize the different aspects of payment system analysis and show their respective importance from a central bank perspective. This will be done both from a theoretical but also from a practical point of view by giving examples of actual work in this field. Three types of Payment system analysis will be distinguished: Payment system analysis in the broad sense of the term, the analysis of particular payment systems and the use of payment system data.

Groundwater flow systems analysis on a regional and nation-wide scale in the Netherlands; the use of flow systems analysis in wetland management

1995 ◽  
Vol 31 (8) ◽  
pp. 375-378 ◽  
Author(s):  
F. H. Kloosterman ◽  
R. J. Stuurman ◽  
R. van der Meijden
Keyword(s):  
The Netherlands ◽  
Groundwater Flow ◽  
Systems Analysis ◽  
System Analysis ◽  
Drainage Basin ◽  
Flow System ◽  
Wetland Management ◽  
Groundwater Flow Systems ◽  
Flow Systems ◽  
Strong Relation

The project “National Groundwater Flow System Analysis” in The Netherlands was initiated in 1991 and will last until 1995. Financed by three Dutch Ministries, the project aims at the mapping of the regional groundwater flow systems to support policy makers at national levels and water/nature resources management. Much emphasis is put on biotic aspects such as the relation between groundwater and patterns in vegetation. The results are used in a detailed flow system analysis of the eco-hydrological valuable drainage basin of the brooks Beerze and Reusel in the southern parts of the country. In this study vegetation patterns and hydrological situations were analyzed in present and in historical settings to unravel the changes in the last decades leading to severe deterioration of habitats and wetlands. Historical data on flora from the beginning of this century on the basis of km-grid cells show a strong relation with the historical exfiltration areas where deep alkaline groundwaters rich in calcium-carbonate emerged. Agriculture and man-made changes to the natural drainage systems have led to diminishing nature values. Combining a sound understanding of the groundwater flow systems and the changes in the last decades produced a number of practical and viable measures to restore historical wetland settings and to preserve existing ones.

Day-Care Standards: Need and Impact

PEDIATRICS ◽  
1993 ◽  
Vol 91 (1) ◽  
pp. 234-236
Author(s):  
Sue Bredekamp
Keyword(s):  
Health And Safety ◽  
Point Of View ◽  
Professional Organization ◽  
Accreditation System ◽  
Safety Standards ◽  
System 2 ◽  
Quality Programs ◽  
Eligibility Requirements ◽  
The Impact ◽  
Licensing Standards

Any discussion of standards, no matter how brief, must first acknowledge that there are different types of standards established for different purposes. As the director of the national voluntary accreditation system for child care centers and schools established by the National Association for the Education of Young Children (NAEYC), I am most familiar with the need and impact of accreditation standards, which are, by definition, standards for distinguishing high-quality programs established by a professional organization. In any case the implementation of a national accreditation system is heavily influenced by local and state licensing standards, which are mandatory government regulations that establish a baseline of protection. Accreditation and licensing standards are both influenced by model standards such as the health and safety standards of the American Academy of Pediatrics and the American Public Health Association.1 These standards establish a model, based on the best professional evidence, that serves as a reference for the other two systems but does not carry an enforcement system of its own. This paper will discuss the need for and impact of all three types of standards from the point of view of my experience in operating NAEYC's accreditation system.2 Because our accreditation process is nationally administered, we have the opportunity to observe the impact of diverse licensing standards on quality. In order to maintain accessibility we have relatively few eligibility requirements, and because we do not require 100% compliance with our criteria, we also have the opportunity to observe the interrelationships among standards and other effects. One caveat must be offered at the outset.

Reflective backward analysis to assess the operational performance and eco-efficiency of two industrial districts

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Andrea Appolloni ◽  
Idiano D'Adamo ◽  
Massimo Gastaldi ◽  
Morteza Yazdani ◽  
Davide Settembre-Blundo
Keyword(s):  
Economic Trend ◽  
Careful Analysis ◽  
Point Of View ◽  
Industrial Districts ◽  
Management Approach ◽  
Ceramic Tiles ◽  
Data Set ◽  
Content Type ◽  
Sectorial Analysis ◽  
Backward Analysis

PurposeThe best strategy to apply for the future cannot disregard a careful analysis of the past and is the one capable of seizing opportunities from outside. Manufacturing sectors are characterized by sudden changes, and in this work, we analyze the ceramic tiles sector characterized by a mature technology in which innovation has played a key role.Design/methodology/approachThis study aims to provide a sectorial analysis based on a historical data set (2004–2019) to highlight how an industry is performing both operationally and in terms of eco-efficiency. For this purpose, from a methodological point of view, the data envelopment analysis (DEA) was used.FindingsThe results of the analysis show that the Spanish ceramics industry shows a growing economic trend by taking advantage of lower industrial costs, while the Italian industry is characterized by a modest decline partially mitigated by exports. The industrial districts are an aggregation of companies that in the ceramic sector has allowed to combine innovation, sustainability and digitalization and is a model toward the maximization of sustainable efficiency because it is a place of aggregation of resources and ideas.Originality/valueThis study experiments with an innovative way of addressing traditional industry analysis, namely, integrating the reflective management approach with DEA-based backward analysis. This provides decision makers with the basis for new interpretations of variable trends.

Master curves for the response of layered systems to compressional seismic waves

1967 ◽  
Vol 57 (3) ◽  
pp. 515-543 ◽  
Author(s):  
Luis M. Fernandez
Keyword(s):  
Seismic Waves ◽  
Transfer Functions ◽  
Point Of View ◽  
Time Lags ◽  
Master Curves ◽  
Layer System ◽  
Crust And Upper Mantle ◽  
Response Characteristics ◽  
Families Of Curves ◽  
Short Time

abstract The layers of the earth's crust act as a filter with respect to seimic energy arriving at a given station. Consequently the motion recorded at the surface depends not only on the frequency content of the source and on the response characteristics of the recording instrument, but also on the elastic parameters and thicknesses of the transmitting layers. This latter dependence is the basis for a method of investigating the structure of the crust and upper mantle. To facilitate this investigation a set of master curves for the transfer functions of the vertical and horizontal component of longitudinal waves and their ratios is presented. The calculation of these curves is in terms of a dimensionless parameter. This calculation allows one to group the curves corresponding to different crustal models into families of curves. The characteristics of these curves are discussed from the point of view of their “periodicity” in the frequency domain and of their amplitude in order to investigate the influence of the layer parameters. Considerations, either of constructive interference or of Fourier analysis of a pulse multiply reflected within the layer system, reveal that the amplitudes of the transfer curves depend on the velocity contrasts at the interfaces of the system. The “periodicity” or spacing of the peaks depends on the time lags between the first arrivals and the arrivals of the different reverberations. Closely spaced fluctuations correspond to large-time lags, and widely spaced fluctuations to short-time lags.

scholarly journals USE OF ORGANIZATION AND ENGINEERING IN EVENT TOURISM

2020 ◽  
pp. 22-28
Author(s):  
Svitlana Tyshchenko ◽  
Taisiіa Chernyshova ◽  
Snizhana Mutasova
Keyword(s):  
System Analysis ◽  
Technical Support ◽  
Point Of View ◽  
Practical Significance ◽  
Wide Audience ◽  
Main Research ◽  
Goal Development ◽  
Effective System ◽  
Event Tourism ◽  
First Time

The article discusses the main problems of the implementation of event tourism in certain territories, which primarily include: short-term event; the scale of the event; placement in a natural area; lack of sufficient means of accommodation and services for tourists; style of events and the like. Goal. Development of an effective system of organizational and technical support for event tourism events. Methodology. The main research methods, in order to achieve the goal, are the analysis of engineering support, the classification of mobile homes for event tourism and the modeling of requirements for them based on the system analysis of event tourism technologies. Results. The organizational and technical support of event tourism activities proposed in the article will reduce the technogenic load on the local natural landscapes of natural areas in the places where event events are held. This will contribute to the formation of a higher culture, the style of their conduct, which will make it possible to undertake events of event tourism in regions that are even more attractive to a wide audience of tourists not only in our country, but also abroad. This method of organizational and technical support can also be used for holding rallies, forums, conferences and other events. Important for the success of the development of event tourism and the correct organization of organizational and engineering support is the formation of a calendar of events, which makes it possible to approach all future events in a planned manner, from the point of view of engineering and technical support, later will give its positive results. Scientific novelty. The current state of the use of mobile houses in event tourism on the territory of Ukraine is analyzed for the first time. For the first time, the calendar of the territory of the Stanishovskaya OTG of the Zhytomyr region was compiled for 2020-2021. Practical significance of the study lies in the fact that the compiled calendar of event tourism will be used by OTG "Stanishovskaya" in full and taking into account our recommendations regarding the holding of mass events.

scholarly journals EFFICIENT ENGINEERING IN DEVELOPMENT OF CONSTRUCTION SECTOR COMPETITIVENESS

2021 ◽  
Vol 21 (3) ◽  
pp. 90-99
Author(s):  
O.N. Bekirova ◽  
◽  
S.A. Barkalov ◽  
M.S. Trifonova
Keyword(s):  
System Analysis ◽  
Consumer Preferences ◽  
Optimal Solution ◽  
Real Estate Market ◽  
Point Of View ◽  
Economic Conditions ◽  
Construction Sector ◽  
Construction Enterprise ◽  
Modern Economic ◽  
Optimal Construction

The COVID-19 pandemic has really become a real shock for the whole world. The way of life has changed not only for people, but also for companies in various industries. Today, the real estate market, like many other industries, is in conditions of economic instability. The study highlights the problems faced by the construction sector in the current conditions of the coronavirus pandem-ic. One of these problems is the sustainable competitiveness of construction and its compliance with new consumer preferences. Aim. The study of the influence of engineering solutions and other fac-tors on the competitiveness of construction in modern economic conditions, the definition of key criteria. Development and description of the decision-making methodology for choosing the optimal construction enterprise from the point of view of competitiveness. Materials and methods. The methods of system analysis, optimization methods, hierarchy analysis and decision theory are ap-plied in the work. Within the framework of the proposed methodology, the author's method of identifying key competitiveness criteria has been developed. Since the problem of choosing the optimal solution from among the alternatives is based on a multi-criteria approach, the use of this method is quite appropriate. The template for the formation of the methodology was identified based on the analy-sis of existing research in this area. Results. The author summarizes and supplements the criteria and factors affecting the competitiveness of construction organizations in the study. The author's method of making a decision on determining the optimal construction enterprise from the point of view of competitiveness based on the criteria considered by the author is presented. This technique includes several stages: 1) forming a goal; 2) formation of criteria by which organizations will be evaluated; 3) calculation of criteria for each organization and bringing them to a homogeneous type of data; 4) building a tree of goals and a matrix of priorities; 5) Determining the values of priority vectors for each organization under study. Conclusion. The total influence of criteria and engineering solutions on the competitiveness of construction is determined. In this regard, the implementation of the con-struction project should be carried out taking into account the strategic goals of the organization and binding to the identified criteria. The proposed methodology is developed for Russian construc-tion companies operating in modern economic conditions.

scholarly journals MODELING THE DEVELOPMENT OF THE GAS INDUSTRY IN UKRAINE

2021 ◽  
Author(s):  
Vitaliy Makarov ◽  
◽  
Mykola Kaplin ◽  
Keyword(s):  
Linear Programming ◽  
Natural Gas ◽  
System Analysis ◽  
Statistical Information ◽  
Point Of View ◽  
Annual Production ◽  
Production Volume ◽  
Gas Industry ◽  
Unit Costs ◽  
Gas Fields

The subject of the research is the directions of development of the gas industry of Ukraine. The purpose of the study is to develop a mathematical model for calculating the program of development of the country's gas industry to solve the problem of choosing options for commissioning of new natural gas fields and intensification of existing fields. The methods of system analysis, linear programming, comparative analysis and expert evaluations are used in the work. A model for calculating a program for the development of the gas industry is proposed to solve the problem of choosing options for commissioning new natural gas fields and intensifying existing fields. The model is based on representing development options with achievable volumes of annual production increase in integer linear programming problems. New and operating natural gas fields can be presented in the model with statistical information on their distribution by reserves and depths with the corresponding development costs, as well as the dependences of the predicted annual production volume on the measures taken and technologies to improve the efficiency of gas extraction. Model calculations provide a two-stage method for determining the options for the development of the industry. At the first stage, a variety of options are optimized according to the criterion of unit costs per 1,000 m3 of gas produced during the entire program period. The second stage ensures the optimal distribution of the selected options between the periods of the program using the criterion of the production volume and with the limited costs of the previous period for the preparation, prospecting and exploration of deposits. The results of calculating feasible options for the development of the gas production industry based on statistical information on volume, mining and geological and cost indicators of the development of resources and natural gas reserves are presented. The calculations investigated the options for the uniform distribution of investment, as well as their growth from the first stage to the next. For both cases, the priority is set for the selection of fields with large reserves at the same depths. Such a procedure for putting fields into operation is expedient, both from the point of view of the criterion for the optimal functioning of the industry over a long period of time – the unit costs of production, and on the basis of considerations of achieving the highest volumes of extraction in the shortest possible time. In the case of small capital investments in the development of the industry, the model selects small-volume reserves of deposits according to the structure of Ukrainian reserves.

Educational work at the university as an element of the quality management system

2021 ◽  
pp. 3-12
Author(s):  
Ya.A. Vavilin ◽  
◽  
V.A. Soldatov ◽  
I.G. Mankevich ◽  
N.YU. Chistokletov ◽  
...  
Keyword(s):  
System Analysis ◽  
Quality Management System ◽  
Educational Process ◽  
Point Of View ◽  
Educational Work ◽  
Intercultural Interaction ◽  
The Russian Federation ◽  
The University ◽  
Formation Of Groups

The article deals with an important component of the learning process - educational work, in terms of the formation of a moral and patriotic portrait of a graduate, as well as the formation of groups of universal competencies related to intercultural interaction and civic position. The task of improving upbringing work at the university received particular urgency in connection with the implementation of the strategy for the development of education in the Russian Federation. The authors attempt to evaluate and analyze educational work from the point of view of the process approach and system analysis. A hierarchical model of educational work is proposed and the components of the process are highlighted, and a system of indicators for assessing the quality of educational work is developed. The proposed approach can be applied in the formation and evaluation of the strategy for the development of the educational process in higher education and the development of work programs for educational work, as an obligatory element of the main professional educational program.

Natural Frequency Analysis of Hydraulic Quadruped Robot and Structural Optimization of the Leg

2019 ◽  
Vol 142 (1) ◽  
Author(s):  
Qingjun Yang ◽  
Rui Zhu ◽  
Zhenguo Niu ◽  
Chen Chen ◽  
Qi Mao ◽  
...  
Keyword(s):  
Natural Frequency ◽  
Load Capacity ◽  
Structural Parameters ◽  
Multiple Input Multiple Output ◽  
State Equation ◽  
Point Of View ◽  
System Response ◽  
Response Characteristics ◽  
Research Fields ◽  
Natural Frequency Analysis

Abstract Hydraulic quadruped robots can adapt to very complex ground conditions, as they have good maneuverability and high load capacity and, therefore, have received great attention in military research fields all over the world. However, there is no mature theory on how to ensure stable, efficient, and fast walking of robots. In this paper, from the point of view of the natural frequency of the hydraulic system, we first calculate the natural frequency of the robot's legs during the whole motion period of the robot and verify the accuracy of calculation through system identification. Then, through the analysis of the state equation and transfer function matrix of the multiple-input multiple-output system, it is found that the zero and pole of the system are very close, this is why the natural frequency is low but the system response is acceptable and then we prove that no parameter for the simultaneous zero-pole cancelation of two hydraulic cylinders exists. With the goal of increasing the natural frequency, we optimized the leg structure of the robot to find the best structural parameters. Finally, a single-leg test bench was built. The experimental results show that the optimization of the structure can actually increase the natural frequency of the system and significantly improve the response characteristics of the robot.

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