Application of decision logic trees and game-tree structures in analysis of automatic transmission gearboxes

Trudy NAMI ◽  
2021 ◽  
pp. 6-21
Author(s):  
A. Deptuła ◽  
R. Kh. Kurmaev
Keyword(s):  
Automatic Transmission ◽  
Knowledge Generation ◽  
Practical Significance ◽  
Problem Statement ◽  
Game Tree ◽  
Tree Structures ◽  
Optimal Decisions ◽  
Optimal Programming ◽  
Decision Logic ◽  
Selection Of

Introduction (problem statement and relevance). The graphs, logic and game-tree structures methods have been used in mechanics. The purpose of modeling an automatic gearbox with graphs can be versatile, namely: determining the transmission ratio of individual gears, analyzing the speed and acceleration of individual rotating elements.The purpose of the study. The article presents the application of decision trees in the analysis of automatic gearboxes modeled with the Hsu graph.Methodology and research methods. The paper presents a method of generating game tree structures that allow to change the values of decision parameters in the issues of decision making and knowledge generation. Specifying the rank of importance, in which order you should change individual items to active, allows you to detect the so-called redundant or temporarily redundant components for a given gear currently under consideration.Scientific novelty and results. At each stage of optimization, a tree is generated, selecting the optimal decisions. Then, vertices can be added to the tree that represent the optimal responses of the system to changes in arithmetic construction parameters.Practical significance. The most important in this regard will be the selection of the optimal programming environment with the possibility of installing the program in laboratory

scholarly journals APPLICATION OF COMPLEX GAME-TREE STRUCTURES FOR THE HSU GRAPH IN THE ANALYSIS OF AUTOMATIC TRANSMISSION GEARBOXES

2018 ◽  
Vol 18 (4) ◽  
pp. 96-113
Author(s):  
Adam DEPTULA ◽  
Marian A. PARTYKA
Keyword(s):  
Information Systems ◽  
Automatic Transmission ◽  
Operating Parameters ◽  
Objective Functions ◽  
Logic Tree ◽  
Game Tree ◽  
Tree Structures ◽  
Algorithmic Approach ◽  
Game Trees ◽  
Decision Methods

In the article was discussed the possibility of structures and information systems complex game trees for the analysis of automatic gearboxes. The purpose of modelling an automatic gearbox with graphs can be versatile, namely: determining the transmission ratio of individual gears, analysing the speed and acceleration of individual rotating elements. In a further step, logic tree-decision methods can be used to analyse functional schemes of selected transmission gears. Instead, for graphs that are models of transmission, parametrically acting tree structures can be used. This allows for the generalization and extension of the algorithmic approach, furthermore in the future it will allow further analyses and syntheses, such as checking the isomorphism of the proposed solutions, determining the validity of construction and / or operating parameters of the analysed gears. The game tree structure describes a space of possible solutions in order to find optimum objective functions. There is the connection with other graphical structures which can be graphs in another sense, or even decision trees with node and/or branch coding.

Feature Based Comparison and Selection of SDN Controller

2019 ◽  
Vol 16 (05) ◽  
pp. 1950029
Author(s):  
Mohammed Abdul Rahman AlShehri ◽  
Shailendra Mishra
Keyword(s):  
Network Performance ◽  
Campus Network ◽  
Analytic Hierarchy ◽  
Decision Logic ◽  
Feature Based ◽  
Efficient Processing ◽  
Hierarchy Process ◽  
Entire Network ◽  
Sdn Controller ◽  
Selection Of

Software defined network (SDN) controller selection in SDN is a key challenge to the network administrator. In SDN, control plane is an isolated process and operate on control layer. The controller provides a universal view of the entire network and support applications and services. The three focused parameters for controller selection are productivity, campus network and open source. In SDN, it is vital to have a good device for the efficient processing of all requests made by the switch and for good behavior of the network. For selecting best controller for the specified parameters, decision logic has to be developed that allow us to do comparison of the available controllers. Therefore, in this research we have suggested a methodology that uses analytic-hierarchy-process (AHP) to find a best controller. The approach has been studied and verified for a big organization network setup of Al-Majmaah University, Saudi Arabia. The approach is found to be more effective and increase the network performance significantly.

Recent Development of the Fast Multipole Boundary Element Method for Modeling Acoustic Problems

2009 ◽  
Author(s):  
Yijun Liu ◽  
Milind Bapat
Keyword(s):  
Boundary Element Method ◽  
Acoustic Wave ◽  
Boundary Element ◽  
Large Scale ◽  
Boundary Integral ◽  
Practical Significance ◽  
Fast Multipole ◽  
Tree Structures ◽  
Wave Problems ◽  
Element Method

Some recent development of the fast multipole boundary element method (BEM) for modeling acoustic wave problems in both 2-D and 3-D domains are presented in this paper. First, the fast multipole BEM formulation for 2-D acoustic wave problems based on a dual boundary integral equation (BIE) formulation is presented. Second, some improvements on the adaptive fast multipole BEM for 3-D acoustic wave problems based on the earlier work are introduced. The improvements include adaptive tree structures, error estimates for determining the numbers of expansion terms, refined interaction lists, and others in the fast multipole BEM. Examples involving 2-D and 3-D radiation and scattering problems solved by the developed 2-D and 3-D fast multipole BEM codes, respectively, will be presented. The accuracy and efficiency of the fast multipole BEM results clearly demonstrate the potentials of the fast multipole BEM for solving large-scale acoustic wave problems that are of practical significance.

Rumen degradation of straw 4. Selection and degradation of morphological components of barley straw by sheep

1988 ◽  
Vol 47 (1) ◽  
pp. 105-110 ◽  
Author(s):  
P. K. Bhargava ◽  
E. R. Ørskov ◽  
T. K. Walli
Keyword(s):  
Leaf Blade ◽  
Dry Matter ◽  
Leaf Sheath ◽  
Practical Significance ◽  
Barley Straw ◽  
Rumen Degradation ◽  
Whole Plant ◽  
Ad Libitum ◽  
The Mathematical Model ◽  
Selection Of

AbstractExperiments were made to study the proportion, chemical composition, and rumen degradability of the morphological components of barley straw (Corgi variety) and to study the selection of these components by sheep. The proportions in the harvested straw dry matter (DM) as leaf blade, leaf sheath, stem and chaff were 128, 314, 500 and 58 g/kg DM, respectively. The different components of straw on analysis proved to have very different concentrations of nitrogen and neutral-detergent cellulase digestibility. The leaf blades had the highest and the stems the lowest values. The degradabilities of DM in the components and in the whole straw were determined by measuring DM loss from samples incubated in nylon bags for various periods in the rumen of sheep. Responses were measured using the mathematical model p = a+b (1–e−ct) where p is DM loss, (a+b) potential degradability, c the rate constant of DM loss and t is the time of incubation. DM losses decreased in the order leaf blades > leaf sheath > whole plant > chaff > stems. Leaf blades also had the highest potential degradability and rate of degradation.In another trial, five sheep were offered unchopped barley straw ad libitum. There were five treatment periods in which sheep were allowed to leave uneaten proportionately 0·2, 0·3, 0·4, 0·5 and 0·7 of the straw on offer for assessing the animal's selection of the morphological components of that straw. The amount of leaf blade in the material consumed increased in largely a linear (P < 0·01) fashion with the amount of excess allowance. The proportion of stem eaten varied conversely. The selection of leaf sheath was less apparent. Little stem was consumed until the proportion of leaf blade in the food available decreased below proportionately 0·4. The practical significance of the study is discussed.

scholarly journals Certain historical, practical and scientific aspects of prenatal diagnostics in st. Petersburg

2004 ◽  
Vol 53 (1) ◽  
pp. 82-88
Author(s):  
V. S. Baranov
Keyword(s):  
Prenatal Diagnosis ◽  
High Risk ◽  
Research Methods ◽  
Rapid Growth ◽  
Medical Genetics ◽  
Practical Significance ◽  
Non Invasive ◽  
Methodological Problems ◽  
Biochemical Research ◽  
Selection Of

Prenatal diagnosis (PD), as a relatively new area of ​​medical genetics, is experiencing a period of rapid growth. Methodological problems of PD associated with the selection of women at high risk of congenital and hereditary pathology, complex examination of the fetus using non-invasive (ultrasound) and invasive (cytogenetic, molecular, biochemical) research methods have already been resolved. Further increase in the effectiveness of PD, its scientific and practical significance depends entirely on the level of organization of this service in the field and its funding. An important role in the development of modern PD in Russia was played by the PD laboratory of the N.I. BEFORE. Otta RAMS.

scholarly journals DEVELOPMENT OF TOURIST ORIENTED FARMS OF LVIV REGION

2020 ◽  
pp. 36-42
Author(s):  
Olga Tsymbala ◽  
Julia Dorosh
Keyword(s):  
Dairy Products ◽  
Raw Materials ◽  
Relevant Information ◽  
Educational Process ◽  
Practical Significance ◽  
Dominant Group ◽  
Current State ◽  
Tourism Sector ◽  
Scientific Results ◽  
Selection Of

Purpose. Characterize the development trends of the network of tourist-oriented farms which operate within the Lviv region. Systematize information about their specialization and key areas of work, identify and describe the main groups of farms in Lviv region in view of the priority of their activities, as well as reveal the features of the tourist offers for visitors and tourist groups. Methods. The research used the method of analysis to study the literature and information sources on the research topic; the method of scientific systematization is applied to the selection of tourist oriented farms of Lviv region and the characteristic of key areas of their activities; the cartographic method allowed to visualize the location of the studied farms within the region by forming a map of Lviv region with the indication of settlements where the tourist-oriented farms operate. Results. The role, place and significance of tourist-oriented farms for the development of rural tourism are outlined. The farms of Lviv region that are involved in the tourism sector, focused on the reception of tourists and presented in the information space are highlighted. The dominant group of tourist-oriented farms in Lviv region is formed by those farms that are engaged in the cultivation of cows, goats, sheep, specializing in the manufacture and sale of dairy products, especially various types of cheese. At the same time, a number of cheese factories have been formed within the region, operating on the basis of purchased raw materials. A separate group includes honey eco-farms, berry farms, snail farms, ostriches, etc. Systematized data on the specifics, features of the development of the studied farms are presented in the table, the main products and tourist services they offer on the market of tourist services are highlighted. A map of Lviv region with a presentation of the geography of location of tourist-oriented farms within the region are developed. The scientific novelty of the obtained results lies in the generalization of information about the existing tourist-oriented farms of Lviv region and the analysis of their offer on the tourist market. The practical significance lies in the systematization of relevant information about the current state of development of tourist oriented farms in Lviv region. The obtained scientific results can be used in the process of forming tours in Lviv region as well as in the educational process in the training of future specialists in the specialty «Tourism».

scholarly journals Development of a decision logic for the selection of a flexible robotic system for the automated manufacturing in tooling

Procedia CIRP ◽  
2019 ◽  
Vol 81 ◽  
pp. 435-440
Author(s):  
Marcel Wilms ◽  
Thomas Bergs ◽  
Kristian Arntz ◽  
Lars Johannsen ◽  
Simon Strassburg
Keyword(s):  
Robotic System ◽  
Automated Manufacturing ◽  
Decision Logic ◽  
Selection Of

Onset Times and Detection of Colored Signal Lights

2005 ◽  
Vol 1918 (1) ◽  
pp. 123-127
Author(s):  
John D. Bullough
Keyword(s):  
Visual Detection ◽  
Practical Significance ◽  
Light Sources ◽  
Significant Potential ◽  
Color Characteristics ◽  
Signal Light ◽  
Wide Range ◽  
The Impact ◽  
Transportation Applications ◽  
Selection Of

Light sources used in signal lights for transportation applications have a variety of temporal onset characteristics, including a wide range of onset times. These characteristics, along with luminous intensity and color characteristics, can have important impacts on the ability to detect and respond to colored signal lights. Studies of the impact of these factors on responses to colored signals are reviewed, along with potential implications for the selection of light sources used in traffic and vehicle signals. The onset characteristics of recently developed light sources might offer significant potential to improve visual detection of signal lights. Nonetheless, it is important to understand the context in which a signal light is presented to determine whether such improvements in visual detection have practical significance.

Melbourne's Advanced Rail Transportation

2020 ◽  
Vol 3 (2) ◽  
pp. 24-36
Author(s):  
Koorosh Gharehbaghi ◽  
Ken Farnes ◽  
Matt Myers
Keyword(s):  
Transportation Systems ◽  
Operating Costs ◽  
Rail Transportation ◽  
Operational Flexibility ◽  
Rail Network ◽  
Optimal Decisions ◽  
Commuter Rail ◽  
Passenger Satisfaction ◽  
Selection Of

Melbourne's commuter rail transportation is ageing and outdated. As Melbourne's population is ever-increasing, its rail transportation infrastructure planning also needs to be developed, based on long-term technological advancements. Subsequently, Melbourne's rail network and its systems need to be continuously scrutinized. This study thus reviews Melbourne's advanced rail transportation systems, and determines its future perspectives. This research initially found that, for Melbourne, one of the important aspects of long-term technological innovation is the inclusion of the three specific automation measures of; moderate intrusion control systems; revamp signaling technologies; and new rail lines and systems. Further examination recommended that advanced rail transportation systems including enhanced communications systems, be carefully integrated. Such outcomes will in turn boost Melbourne's rail performance through, a) increase safety and passenger satisfaction; b) enhance system reliability; c) intensify train frequency and capacity; d) improve operational flexibility; and e) reduce the overall operating costs. It is expected that these findings will ultimately assist the relevant rail transportation planners, to make optimal decisions when deciding on the selection of the most advanced rail transportation strategies.

Sign in / Sign up

Export Citation Format

Share Document