Metal Cutting Analysis: Introduction to a New Theoretical Approach

1967 ◽  
Vol 89 (3) ◽  
pp. 543-548
Author(s):  
Jessen Vidal
Keyword(s):  
Comparative Analysis ◽  
Theoretical Approach ◽  
Metal Cutting ◽  
Cutting Mechanism ◽  
Empirical Parameter ◽  
New Approach

In this work, the author develops a new approach to the theory of the cutting mechanism based on the comparative analysis of classical theories. He suggests the introduction of an empirical parameter E, related to the efficiency, which modifies the Lee-Shaffer solution; at E = 1, the theory reduces to the latter theory.

ON COMPARATIVE ANALYSIS OF PERFORMANCE OPTIMIZATION METHODS OF MULTI-PUMP UNITS

2020 ◽  
pp. 23-28
Author(s):  
A.I. Glushchenko ◽  
M.Yu. Serov
Keyword(s):  
Energy Efficiency ◽  
Control System ◽  
Comparative Analysis ◽  
Performance Optimization ◽  
Optimization Methods ◽  
Online Optimization ◽  
New Approach ◽  
Advantages And Disadvantages ◽  
Analysis Of Performance

В статье рассматривается вопрос совершенствования системы управления параллельно-работающими насосными агрегатами с целью повышения энергоэффективности их работы. Проведено сравнение и выявление недостатков существующих методов решения рассматриваемой проблемы. Предложена идея нового подхода на базе онлайн оптимизации. The problem under consideration is improvement of the energy efficiency of a control system of parallel-running pump units. Known methods used to solve this problem are considered. Their advantages and disadvantages are shown. Finally, the idea of a new approach, which is based on online optimization, is proposed.

scholarly journals Configuration-Based Promotion: A New Approach to Destination Image Sustainability

2021 ◽  
Vol 13 (21) ◽  
pp. 12174
Author(s):  
Yanan Li ◽  
Honggen Xiao ◽  
Naipeng Bu ◽  
Jianji Luo ◽  
Hui Xia ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Fuzzy Set ◽  
Qualitative Comparative Analysis ◽  
Destination Image ◽  
Logical Thinking ◽  
Analysis Method ◽  
Entire Region ◽  
Tourist Destination ◽  
New Approach ◽  
Tourism Image

The assessment of tourist destination images should not only be the arrangement of multiple influencing factors. This study explores the complex causal relationship for tourist destination images based on a configuration perspective to enhance the overall tourism image using the fuzzy-set qualitative comparative analysis method. The configurational paths for promoting tourism image can be categorized into two types and nine configurations in Shandong Province. Therefore, this study recommends augmenting the tourism image of the entire region with the logical thinking of “segmentation–integration” and “enhancing strengths–supplementing weakness” and finally realizing a sustainable tourist destination image.

scholarly journals New Perspectives on the Urban–Rural Dichotomy and Dialect Contact in the Arabic gələt Dialects in Iraq and South-West Iran

Languages ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 198
Author(s):  
Bettina Leitner
Keyword(s):  
Comparative Analysis ◽  
Urban Space ◽  
Native Speakers ◽  
Small Scale ◽  
Alternative Analysis ◽  
Dialect Contact ◽  
New Approach ◽  
Geographic Context ◽  
Urban Rural

This paper reevaluates the ground on which the division into urban and rural gələt dialects, as spoken in Iraq and Khuzestan (south-western Iran), is built on. Its primary aim is to describe which features found in this dialect group can be described as rural and which features tend to be modified or to emerge in urban contexts, and which tend to be retained. The author uses various methodical approaches to describe these phenomena: (i) a comparative analysis of potentially rural features; (ii) a case study of Ahvazi Arabic, a gələt dialect in an emerging urban space; and (iii) a small-scale sociolinguistic survey on overt rural features in Iraqi Arabic as perceived by native speakers themselves. In addition, previously used descriptions of urban gələt features as described for Muslim Baghdad Arabic are reevaluated and a new approach and an alternative analysis based on comparison with new data from other gәlәt dialects are proposed. The comparative analysis yields an overview of what has been previously defined as rural features and additionally discusses further features and their association with rural dialects. This contributes to our general understanding of the linguistic profile of the rural dialects in this geographic context.

scholarly journals Methodology of designing integrated technological processes for manufacturing CNC machined parts

2018 ◽  
Vol 224 ◽  
pp. 01057
Author(s):  
Viktor I. Guzeev ◽  
Danil Yu. Pimenov
Keyword(s):  
Simulation Modeling ◽  
Metal Cutting ◽  
Cutting Tool ◽  
New Approach ◽  
Integrated Production ◽  
Technological Processes ◽  
Machined Parts ◽  
Processing Accuracy ◽  
Processing Steps ◽  
Production Conditions

The article presents a new approach to the design of technological processes of processing parts on metal cutting machines in the integrated production conditions based on the expected forecast of the parts processing accuracy. The stages of choosing the parameters of processing steps are combined with determining the parameters of the cutting tool and machining attachments by simulation modeling. The design sequence begins with the first operation.

scholarly journals The influence of hydrojet surface processing on the adhesive strength of wear-resistant coatings deposited on a metal-cutting tool of oxynitride ceramics

2018 ◽  
Vol 224 ◽  
pp. 01066
Author(s):  
Anton Seleznev ◽  
Anton Smirnov ◽  
Pavel Peretyagin
Keyword(s):  
Metal Cutting ◽  
Cutting Tool ◽  
Surface Defects ◽  
New Approach ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Cutting Ceramics ◽  
Nitride Ceramics ◽  
Cutting Inserts ◽  
Metal Cutting Tool

The work represents a new approach of preliminary surface treatment of replaceable polyhedral cutting ceramics inserts for significant increase of adhesion strength with deposited wear-resistant nitride ceramics. By this method the hydrojet treatment was used to repair surface defects occurring during manufacturing process of any required geometry of cutting inserts.

Tsallis-Statistical Approach to the Specific Heat of LIQUID 4HE: Comparison with Other Results

1997 ◽  
Vol 11 (19) ◽  
pp. 2303-2310 ◽  
Author(s):  
Sergio Curilef ◽  
Andrés R. R. Papa
Keyword(s):  
Experimental Data ◽  
Comparative Analysis ◽  
Quantum Group ◽  
Specific Heat ◽  
High Precision ◽  
Theoretical Approach ◽  
Statistical Approach ◽  
Precision Measurements ◽  
Best Fitting ◽  
Theoretical Results

A theoretical approach within a quantum-group formalism has recently been proposed and successfully compared to Greywall's high precision measurements of the liquid 4 He specific heat. We calculate here the specific heat for 4 He using Tsallis' non-extensive thermostatistics. A comparative analysis reveals that there is a temperature range where our theoretical results yield the best fitting to experimental data.

Major Portraits and Minor Series in Eignteenth-Century Theatrical Portraiture

1997 ◽  
Vol 22 (3) ◽  
pp. 234-254
Author(s):  
Maria Ines Aliverti
Keyword(s):  
Eighteenth Century ◽  
Theoretical Approach ◽  
Set Design ◽  
Documentary Evidence ◽  
History Painting ◽  
New Approach ◽  
New Methods ◽  
Interdisciplinary Field ◽  
Art Historians

In recent years, eighteenth-century actors' portraits have deservedly received growing attention from both art and theatre historians. For its extent, variety and quality, for its social and aesthetic implications, eighteenth-century theatrical portraiture demands a refined theoretical approach: it has helped to create an interdisciplinary field where new methods in dealing with theatre iconography have been profitably deployed. English and American scholars have contributed to develop this field in a specific way, devoting single studies and monographs to portraits of actors. In spite of the importance of French theatrical portraiture, French contributions are less significant. In most cases theatrical portraits are considered exclusively by art historians, and in the context of catalogues or monographs on a single painter. In France the stage portrait is often undervalued: it is relegated to a pictorial genre considered as inferior (tableaux de théâtre), or it is thought to derive from a disreputable theatricalization of history painting; in any case there has been a real difficulty in submitting these images to critical and specific investigation. In short, even if a new approach to theatrical iconography prevails over the strict utilitarianism of the theatre historians, who—in the best cases—sought in actors' portraits only documentary evidence of acting practice, costume or set design, more work has to be done by art historians, to accord theatrical images the independent status of an iconographic text.

scholarly journals A New Approach to the Question of the Political Spectrum Polarization

2019 ◽  
Author(s):  
Allen Gindler
Keyword(s):  
Comparative Analysis ◽  
Political Science ◽  
Private Property ◽  
Qualitative Comparative Analysis ◽  
The Political ◽  
Individual Freedom ◽  
Mathematical Apparatus ◽  
New Approach ◽  
Wealth Redistribution ◽  
Political Spectrum

The article introduces a new approach to the problem of political spectrum polarization. Political science has introduced a multitude of spectrograms based on different factors, dimensions, axes, and cardinal points. Most often the graphics do not complement each other, and it seems that each of them describes a completely different reality. There was an urgent need to conduct an objective analysis of political philosophies and find the factors that influence the political spectrum polarization. For these purposes, the Qualitative Comparative Analysis (QCA) was used, as it allows to introduce a fraction of objectivity due to the use of a formalized mathematical apparatus of the theory of sets. Thirteen main political doctrines were analyzed and obtained that spectrum polarization depends on three conditions: attitude to private property, individual freedom, and wealth redistribution. As the factors that influence the political spectrum polarization were firmly determined, it became possible to build a spectrogram unambiguously.

scholarly journals Methods for assessing the enterprise economic security as a tool to diagnose threats to development

2020 ◽  
Vol 16 (5) ◽  
pp. 835-859
Author(s):  
I.V. Vyakina
Keyword(s):  
Comparative Analysis ◽  
Cumulative Effect ◽  
Business Environment ◽  
Economic Security ◽  
New Approach ◽  
Scientific Methods ◽  
Analog Approach ◽  
Unique Approach ◽  
Pros And Cons ◽  
General Scientific

Subject. The article addresses issues of enterprise economic security, its assessment, and measures to prevent threats, taking into account the scale and nature of the latter. Objectives. The focus is on underpinning a unique approach to devising a new method intended to identify and diagnose external and internal threats that negatively affect the level of economic security and have a potential to jeopardize the development of economic entities. Methods. The study rests on methods of theoretical, systems, logical, and comparative analysis of academic literature, general scientific methods, like analysis, synthesis, induction, deduction, comparison, generalization, the analog approach, and graphics simulation. Results. The paper offers a concept for assessing the enterprise economic security, which is based on the diagnosis of threats and identification of opportunities for development. I explored the modern methodology for monitoring the economic security at the micro level, conducted a comparative analysis of existing methods and approaches, revealed their pros and cons, and presented a new approach to the evaluation of enterprise economic security. Conclusions. The level of enterprise economic security is assessed in conjunction with the current and projected state of enterprise’s potential and risk factors of business environment. If the cumulative effect of risks is significantly higher than the potential, the threats will arise, which may impede the enterprise operation and development.

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