scholarly journals Air Bearings Theory, Design and Applications

2021 ◽  
pp. 1-2
Author(s):  
Michael Khonsari
Keyword(s):  
Engineering Students ◽  
Thrust Bearing ◽  
Theory And Practice ◽  
Air Bearings ◽  
Simple Experiment ◽  
Late Professor ◽  
Prolonged Length ◽  
Long Time ◽  
Eye Opening ◽  
Parallel Surfaces

Abstract It is hard to imagine any machine that could operate over a prolonged length of time without a lubricant. It is thus fortuitous that air, with its ubiquitous abundance, can function in this capacity. This is not intuitively obvious, particularly when one deals with parallel surfaces in a thrust bearing. Late Professor Fuller —in his book on the theory and practice of lubrication for engineers, also published by Wiley in 1984—shows the picture of a small thrust bearing with three shoes that can support a 4 lb (17.8 N) thrust runner 5 in. (12.7 cm) in diameter. By simply spinning the runner by hand, one can show that bearing can ride on a thin layer of air for a long time. Running this simple experiment in a classroom has become an eye-opening experience for our engineering students.

scholarly journals On Performance of Sparse Fast Fourier Transform Algorithms Using the Aliasing Filter

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1117
Author(s):  
Bin Li ◽  
Zhikang Jiang ◽  
Jie Chen
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
High Efficiency ◽  
Theory And Practice ◽  
Long Time ◽  
And Performance ◽  
Binary Tree Search ◽  
The One ◽  
Sparse Fast Fourier Transform ◽  
L1 And L2

Computing the sparse fast Fourier transform (sFFT) has emerged as a critical topic for a long time because of its high efficiency and wide practicability. More than twenty different sFFT algorithms compute discrete Fourier transform (DFT) by their unique methods so far. In order to use them properly, the urgent topic of great concern is how to analyze and evaluate the performance of these algorithms in theory and practice. This paper mainly discusses the technology and performance of sFFT algorithms using the aliasing filter. In the first part, the paper introduces the three frameworks: the one-shot framework based on the compressed sensing (CS) solver, the peeling framework based on the bipartite graph and the iterative framework based on the binary tree search. Then, we obtain the conclusion of the performance of six corresponding algorithms: the sFFT-DT1.0, sFFT-DT2.0, sFFT-DT3.0, FFAST, R-FFAST, and DSFFT algorithms in theory. In the second part, we make two categories of experiments for computing the signals of different SNRs, different lengths, and different sparsities by a standard testing platform and record the run time, the percentage of the signal sampled, and the L0, L1, and L2 errors both in the exactly sparse case and the general sparse case. The results of these performance analyses are our guide to optimize these algorithms and use them selectively.

scholarly journals CULTURE OF PERSONAL LANGUAGE AS A HISTORICAL AND SOCIAL EVENT

2018 ◽  
Author(s):  
Tetiana Stambulska
Keyword(s):  
Information And Communication Technologies ◽  
Communication Technologies ◽  
Theory And Practice ◽  
The Public ◽  
Communication Problems ◽  
Long Time ◽  
Information And Communication ◽  
Definition Of ◽  
Communication Culture

The article analyzed the peculiarities of the interpretation of the «communication culture» in the context of scientific researches of the past and contemporary domestic researchers. An analysis was carried out to define the concept of «communication culture of a person», the approaches to the definition of this concept are singled out. The positions of scientists concerning the role of eloquence in the formation of the linguistic personality are analyzed, the language is analyzed as a «social and psychological phenomenon», historical conditions of the formation of the concept of «communication culture» are characterized, in particular, attention is focused on the formation of the linguistic personality. It was found out that studies of the ancient traditions of the formation of the language of culture make it possible to better understand modern trends in the development of the person's communication culture. Modern studies have shown that in linguistics for a long time there was no unity in the interpretation of the concepts of «language» and «communication». Problems of the formation of the culture of broadcasting have become the object of research by eminent thinkers, beginning with the period of Antiquity. The question of the formation of a culture of speech has long traditions. Note that in European linguistics, the first decades of the twentieth century. Theoretical study and approval of the concept of «culture of language» in the scientific circulation is underway. It should be noted that in connection with the introduction of information and communication technologies in all spheres of society life has increased interest in the theory and practice of eloquence. This is explained by the fact that the active use of information and communication technologies involves the search for ways of speaking influence, both on the interpersonal and on the public level. According to authoritative experts in rhetoric, L. Matsko, O. Matsko, N. Mykhailychenko, V. Poltupets, etc., there are also communicative reasons that ensure the actual and further development of the theory and practice of oratory in the XX-beginning of the XXI century.

Value Configurations

2010 ◽  
pp. 75-97
Author(s):  
Hans Solli-Sæther ◽  
Petter Gottschalk
Keyword(s):  
Value Chain ◽  
Theory And Practice ◽  
Professional Service ◽  
Insurance Companies ◽  
Service Firms ◽  
Professional Service Firms ◽  
Value Network ◽  
A Value ◽  
Long Time ◽  
Contingent Approach

Understanding how firms differ is a central challenge for both theory and practice of management. For a long time, Porter’s (1985) value chain was the only value configuration known to managers. Stabell and Fjeldstad (1998) identified two alternative value configurations. First, a value shop schedules activities and applies resources in a fashion that is dimensioned and appropriate to the needs of client problems, while a value chain performs a fixed set of activities that enables it to produce a standard product in large numbers. Examples of value shops are professional service firms, as found in medicine, law, architecture and engineering. Next, a value network links clients or customers who are or wish to be interdependent. Examples of value networks are logistic companies, telephone companies, retail banks and insurance companies. In this chapter, we apply the contingent approach to systems outsourcing by making the outsourcing decision dependent on the value configuration of the enterprise. We present the three different value configurations – the value chain, the value shop, and the value network. Next, the three different value configurations are compared according to key characteristics, e.g. use of information systems. Then, we take a look at interfirm relations to be able to identify areas for outsourcing, and value configuration as a determinant and predictor for the extent of outsourcing. Finally, we discuss levels of strategy and we introduce the Y-model for IS/IT strategy work.

USER-INVOLVEMENT AND OPEN INNOVATION: THE CASE OF DECISION-MAKER OPENNESS

2010 ◽  
Vol 14 (03) ◽  
pp. 471-489 ◽  
Author(s):  
KRISTINA RISOM JESPERSEN
Keyword(s):  
Decision Maker ◽  
New Product Development ◽  
Open Innovation ◽  
User Involvement ◽  
New Product ◽  
Theory And Practice ◽  
Decision Makers ◽  
Long Time ◽  
Lead Users ◽  
Successful Collaboration

The promise of customers as an external resource for new-product development (NPD) has been recognized in theory and practice for a long time. Technological progress has increased the interaction between companies and users. Yet the involvement of users in NPD depends on the ability of decision-makers to act as boundary spanners. There is a cognitive distance between NPD decision-makers and users. The larger this distance is, the more novel information is contained in user inputs. True open innovation requires that these cognitive distant inputs are treated in NPD. We find that decision-maker openness is significant for NPD openness to be true. Successful collaboration in form of innovations builds on involvement of launching and lead users in NPD. Our analyses show that decision-maker openness facilitates the involvement process. Further, low decision-maker openness traps the implementation of open innovation.

On-the-Job Training: Demand of Engineering Education Enrichment

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Aniceto R. Rialubin ◽  
Rey M. Basilio ◽  
Florida U. Ursulom
Keyword(s):  
Communication Skills ◽  
Engineering Students ◽  
Job Training ◽  
National Development ◽  
Technical Skills ◽  
Computer Skills ◽  
Theory And Practice ◽  
Engineering Curriculum ◽  
Managerial Skills ◽  
On The Job Training

 On-the-job training provides the venue for developing special manipulative skills for engineering students. If it is integrated in the Engineering curriculum, the gap between theory and practice could be minimized or discarded. The competencies required for OJT are computer skills, technical skills, managerial skills, communication skills, and other skills like getting true design assignments; the preferred number of hours for engineering OJT is 240 hours and should be offered during the summer , and the preferred sequence of activities for engineering OJT are 1) one-day orientation on all the skills/competencies needed for engineering OJT; 2) deep orientation on communication and other skills for four days; 3) computer skills in one week; 4) technical skills in 1 week; 5) managerial skills in one week; and 6) integration of all the competencies in 2 weeks. All the above-mentioned competencies should be strictly observed and implemented. In effect, the students could be developed and become competitive and productive. Indeed, engineers are the key players in national development and global economy.Keywords: Engineering curriculum, on-the-job training , competencies and employment, Vigan City, Philippines

Faith-Based Diplomacy under Examination

2008 ◽  
Vol 3 (3) ◽  
pp. 209-231 ◽  
Author(s):  
Jodok Troy
Keyword(s):  
Science Research ◽  
Theory And Practice ◽  
Peace Building ◽  
Western World ◽  
International Affairs ◽  
Faith Based ◽  
Political Reality ◽  
The Enlightenment ◽  
Faith Traditions ◽  
Long Time

AbstractReligion has been largely absent in diplomacy, particularly in the Western world, for a long time. Some would even say since the Enlightenment. Moreover, religion has been ignored in present-day theories of international relations, and thus also in diplomatic studies. A recent 'resurgence' of religion in international affairs, however, presents an opportunity to apply moral insights and religious concepts towards the development of peaceful settlements of conflicts through diplomatic techniques. The approach of faith-based diplomatic approaches may infuse those insights into today's political reality, thereby incorporating important initiatives, such as reconciliation and forgiveness, into conflict resolution.This article examines the concept of faith-based diplomacy as declared track-two diplomacy in the context of classical track-one diplomacy. It starts with a brief overview of political science research of track-one and track-two diplomacy. Additional focus is applied to the principles and practices of Christian faith traditions and their potential contributions to peace-building. Finally, the article also evaluates the 'spiritual roots' of diplomacy. It assesses how 'diplomatic theory and practice can be informed and enriched by experimenting with spirituality'. The success of faith-based diplomacy lies in its insights and applications of religious values and methods. But it is also its realistic approach that makes faith-based diplomacy a promising, needed and additional style of diplomacy even though it cannot be properly located within either track-one or track-two diplomacy.

scholarly journals Prologue: Tropical Meteorology 1960–2010—Personal Recollections

2016 ◽  
Vol 56 ◽  
pp. vii-xv ◽  
Author(s):  
Taroh Matsuno
Keyword(s):  
Early Period ◽  
Tropical Meteorology ◽  
Point Of View ◽  
Late Professor ◽  
The Past ◽  
Personal Reminiscence ◽  
Past Half Century ◽  
Long Time ◽  
The University ◽  
Past Half

This volume consists of some papers presented at the AMS Symposium held to honor the memory of the late Professor Michio Yanai as well as additional works inspired by his research. By the nature of this volume, many of the contributed papers describe the development of tropical meteorology over the past half-century or so in connection with Professor Yanai’s influence on it. While most of the chapters address specific areas and discuss timely issues, in this prologue I will describe some of Professor Yanai’s contributions during the early period of his career from my own point of view. As this is a personal reminiscence, I would like to emphasize how Professor Yanai influenced me. Both Professor Yanai and I became graduate students at the University of Tokyo to begin our career as meteorologists in 1956 and 1957, respectively. Since we studied and worked together so closely for a long time, in this article I will call him Yanai-san as I have done in our personal interactions.

scholarly journals Efficiency of the construction market and need for government regulation

2017 ◽  
Vol 19 (1) ◽  
pp. 37-49
Author(s):  
Aneta Marichova
Keyword(s):  
Government Regulation ◽  
State Intervention ◽  
Theory And Practice ◽  
Regulatory Function ◽  
Construction Market ◽  
Oligopolistic Markets ◽  
Long Time ◽  
The Government ◽  
And Control

Abstract For a long time in economic theory and practice, regulation is only linked to the need for state intervention in monopolistic markets, by developing uniform, simple regulatory rules to limit and control the monopoly power, the monopoly price, mergers and acquisitions between companies in the same industry and others. In recent years the prevailing opinion that government regulation is particularly necessary in oligopolistic markets where there are several leading, dominant companies that can influence the price, quantity and quality of the product offered. However, this regulatory policy should not apply to common rules and taking into account the specifics of the market/industry, market structure (concentration level) of the various market segments and the relevant economic activity. The aim of the study: 1) Evaluation of the efficiency of the construction market, 2) Demonstrate the need for government intervention, 3) Guidelines for the implementation of the regulatory function of the government.

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