scholarly journals Numerical analysis of the Ti6Al4V behavior based on the definition of a new phenomenological model

2021 ◽  
Author(s):  
Mariem Yaich ◽  
Yessine Ayed ◽  
Guénaël Germain ◽  
Zoubeir Bouaziz
Keyword(s):  
Numerical Analysis ◽  
Phenomenological Model ◽  
Behavior Based ◽  
Definition Of

Etude taxonomique d'entérobactéries appartenant ou apparentées à l'espèce Escherichia coli

1981 ◽  
Vol 27 (1) ◽  
pp. 98-106 ◽  
Author(s):  
F. Gavini ◽  
D. Izard ◽  
P. A. Trinel ◽  
B. Lefebvre ◽  
H. Leclerc
Keyword(s):  
Escherichia Coli ◽  
Numerical Analysis ◽  
Dna Hybridization ◽  
Dna Relatedness ◽  
E Coli ◽  
Definition Of

Phenetic (numerical analysis) and genetic (DNA–DNA hybridization) studies were carried out on strains belonging or related to the species Escherichia coli. They have shown the diversity of its phenotypes, by the presence of plasmidic characters (citrate+, urease+, H2S+, tetrathionate reductase+, raffinose+, and saccharose+). New strains related phenetically to E. coli are also individualized. They showed less than 30% DNA relatedness with E. coli. A new definition of E. coli is presented.

scholarly journals LEADERSHIP AS A PHENOMENON OF MODERN MANAGEMENT

2020 ◽  
Author(s):  
Іryna Markina ◽  
◽  
Victoriia Voronina ◽  
Іryna Dmytrenko ◽  
◽  
...  
Keyword(s):  
Enterprise Management ◽  
Leadership Qualities ◽  
Distinctive Features ◽  
Modern Management ◽  
Economic Methods ◽  
Common Goals ◽  
Behavior Based ◽  
Enterprise Management System ◽  
Definition Of ◽  
Management And Leadership

Today Ukrainian enterprises operate in difficult conditions. In these conditions, the question of improving management arises. The work of a well-coordinated team is required. We need a leader. There are managers who skillfully manage enterprises. They guide workers towards common goals. But there are those who cannot influence their subordinates. These leaders do not have the necessary leadership qualities. We believe that the issue of leadership in modern management is relevant and timely. The aim of the study is to clarify the concept of "leadership". The place and role of leadership in the enterprise management system has been determined. Some scholars combine leadership with the phenomenon of power. We believe that being a leader and being a leader in an organization are not the same thing. There is no single definition of leadership. Each researcher gives his own definition. The phenomenon of leadership is complex. There are many classifications of leader types. One part of them concerns life and professional experience. The second part relates to psychological characteristics. The third describes habits and style. Leader style is the manner in which the leader behaves with subordinates. Several manners are shown in the article. Leadership is the relationship between the leader and the members of the group. They influence each other and strive to achieve results. We believe that management and leadership are equally important for an enterprise. But, it is necessary to distinguish between a leader and a manager. The definition of management is similar to the definition of leadership: achieving the goals of an organization with the help of people subordinate to a manager. Managers should be leaders. The distinctive features of management and leadership are given. The main difference between a manager and a leader is the source of power. The ideal is the merging of the qualities of a leader and a manager in one person. Leadership is a form of manifestation of influence on people's behavior, based on socio-psychological contact and socio-psychological methods of management. Management is a form of influencing people's behavior, based on administrative, legal and economic methods of management. Leadership does not replace the management process. It complements it when traditional management methods fail to solve the problem. Effective leadership is built on trust. The development of the leadership concept changes the content of modern management. Distinguishes between old and new approaches to management. These approaches are leadership and leadership oriented.

Definition of the flow dynamics by numerical analysis in a filterpress reactor

2007 ◽  
Vol 32 (15) ◽  
pp. 3126-3132 ◽  
Author(s):  
Leticia Vázquez Gutiérrez ◽  
Hugo Lara Marcial ◽  
Sandra Figueroa Ramírez ◽  
Alberto Alvarez Gallegos ◽  
Fernando Sierra Espinosa
Keyword(s):  
Numerical Analysis ◽  
Flow Dynamics ◽  
Definition Of

scholarly journals Static Equivalence Checking for OpenFlow Networks

Electronics ◽  
2021 ◽  
Vol 10 (18) ◽  
pp. 2207
Author(s):  
Hyuk Lee ◽  
Jin-Young Choi
Keyword(s):  
Network Model ◽  
Constraint Satisfaction ◽  
Software Defined Networking ◽  
Equivalence Checking ◽  
Formal Definition ◽  
Network Configuration ◽  
Static Equivalence ◽  
Behavior Based ◽  
Definition Of

Software-defined networking (SDN) provides many advantages over traditional networking by separating the control and data planes. One of the advantages is to provide programmability, which allows administrators to control the behavior of the network. The network configuration may need to be changed for some reason. Whenever such changes are made, it can be required to verify that the forwarding behavior is preserved from the existing configuration, that is, whether the ruleset is properly reflected. In this paper, we propose the forwarding behavior based equivalence checking of OpenFlow networks. We present the formal definition of the network model and the forwarding behavior of the packet flow. Based on the definition, We present a method for checking the equivalence of OpenFlow network forwarding behaviors. Next, we present the implementation of the proposed method, using the constraint satisfaction method, which will be the basis for further extension.

scholarly journals The analysis of gas filtration model with use of fractional derivatives in time

2017 ◽  
pp. 82-89
Author(s):  
Nazariy Lopuh
Keyword(s):  
Numerical Analysis ◽  
Numerical Model ◽  
Finite Elements ◽  
Initial Data ◽  
Pressure Distribution ◽  
Fractional Derivatives ◽  
Finite Elements Method ◽  
Gas Filtration ◽  
Definition Of ◽  
Filtration Model

In work on the basis of a finite elements method it is offered numerical model of gas filtration in porous non-uniform environments with use of fractional derivatives in time. Kaputto and Rimman- Liouville's fractional derivatives are considered. The numerical analysis with use of experimental initial data is made. The received results can be used for a research of filtrational properties of the vicinity of the well, definition of its output depending on pressure distribution.

Hull Bending Moment Due to Ship Bottom Slamming in Regular Waves

1975 ◽  
Vol 19 (02) ◽  
pp. 80-92
Author(s):  
A. Mansour ◽  
J. M. d'Oliveira
Keyword(s):  
Physical Model ◽  
Mathematical Formulation ◽  
Time History ◽  
Bending Moment ◽  
Regular Waves ◽  
Hydrodynamic Problem ◽  
Overall Response ◽  
Behavior Based ◽  
Definition Of

A review of the existing literature on the overall response of ships to bottom slamming is presented. A mathematical formulation of the vibratory bending moment due to bottom impact slamming in regular waves is then developed. The hydrodynamic problem concerning the definition of the loads is first discussed and a particular physical model is adopted for determining the hull vibratory behavior. Based on this formulation, a general computerized procedure leading to the time-history representation of the midship bending moment is developed. Finally, an illustrative example of application to a Mariner ship is described and the results are related to some available data.

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