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MIHAI BUGARU ∗
"... Abstract: The increased interest for improved gear design has led to extensive research into the field of nonlinear dynamics of such systems. The paper reveals a complex dynamic model to study the behavior in a gearpair system taking into consideration backlash and time-dependent mesh stiffness and ..."
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of the driven ax induce non-linearities. The paper presents the use of asymptotic method in order to compute the amplitude of steady state motion. By this way the paper reveals the phenomena's characteristics of multiple jumps specific to the non-linear dynamic behavior of gear-pair due to: non
A principal-components analysis of the Narcissistic Personality Inventory and further evidence of its construct validity.
- Journal of Personality and Social Psychology,
, 1988
"... We examined the internal and external validity of the Narcissistic Personality Inventory (NPI). Study 1 explored the internal structure of the NPI responses of 1,018 subjects. Using principal-components analysis, we analyzed the tetrachoric correlations among the NPI item responses and found eviden ..."
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evidence for a general construct of narcissism as well as seven first-order components, identified as Authority, Exhibitionism, Superiority, Vanity, Exploitativeness, Entitlement, and Self-Sufficiency. Study 2 explored the NPI's construct validity with respect to a variety of indexes derived from
Lecturer: Mihai Pǎtra¸scu
, 2005
"... In this lecture, we discuss hashing as a solution to dictionary/membership problem. Various results on hashing are presented with emphasis on static perfect hashing and Cuckoo hashing. 2 Dictionary/Membership Problem In dictionary/membership problem, we want to keep a set S of items with possibly so ..."
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, the dynamic version allows items to be inserted to and removed from S. 3 Hashing with Chaining Let U denote the universe of items, and let m be a positive integer. A hash function is a function from U to Zm.
A NOTE ON TCHAKALOFF’S THEOREM MIHAI PUTINAR
"... Abstract. A classical result of Tchakaloff on the existence of exact quadrature formulae up to a given degree is extended to positive measures without compact support. A criterion for the existence of Gaussian quadratures for a class of such measures is also derived from the main proof. 1. ..."
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Abstract. A classical result of Tchakaloff on the existence of exact quadrature formulae up to a given degree is extended to positive measures without compact support. A criterion for the existence of Gaussian quadratures for a class of such measures is also derived from the main proof. 1.
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"... ing ue. s, th ost elec ing e. O Crown Copyright 2010 Published by Elsevier Ltd. All rights reserved. tional ies hav s that morp these c ..."
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ing ue. s, th ost elec ing e. O Crown Copyright 2010 Published by Elsevier Ltd. All rights reserved. tional ies hav s that morp these c
AN OVERVIEW OF ACADEMICIAN MIHAI DRĂGĂNESCU’S CONCEPTUAL CONTRIBUTIONS TO INFORMATION SCIENCE
"... Science, as well as other domains of the human culture and civilization, benefits in its becoming from two important categories of personalities, which I would generically call “creators ” and “catalysts”, respectively. Creators, be they discoverers or innovators, bigger or lesser, are those who, by ..."
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Science, as well as other domains of the human culture and civilization, benefits in its becoming from two important categories of personalities, which I would generically call “creators ” and “catalysts”, respectively. Creators, be they discoverers or innovators, bigger or lesser, are those who, by the power of thought, widen or deepen the knowledge, open new ways for investigation, produce or improve technologies; in short, they generate knowledge. Development of knowledge is not discontinuous, it builds on the common scientific creation and, even when the memorable findings seem to be cognitive breakthroughs, one can find their elements of continuity, their sources of inspiration, analogies in the works of other contemporary or preceding creators. Most often, the important creators manage to generate schools of thinking, in that more and more new researchers walk the ways they have opened. Usually, history records only the pioneers, being somehow unfair with the other creators. Catalysts are decision makers at a social group level and who, by their initiatives, insure the premises of the creators ’ activities, most often with no clear expectations or
CONSIDERATIONS CONCERNING THE SPHERE OF THE ACTIVITIES OF INTERNAL AUDITING MAGDALENA MIHAI, NICU MARCU
"... Abstract: The internal audit has known a continuous evolution, the sphere of the specific activities being gradually extended from the financial and accounting area to the entity's operational area. This aspect is significantly influenced, among others, by the subordination means of the depart ..."
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Abstract: The internal audit has known a continuous evolution, the sphere of the specific activities being gradually extended from the financial and accounting area to the entity's operational area. This aspect is significantly influenced, among others, by the subordination means
MIHAI SILVIU UTESCU THE IMPACT OF ARTERIOVENOUS FISTULAS ON AORTIC STIFFNESS IN PATIENTS WITH CHRONIC KIDNEY
, 2011
"... à la Faculté des études supérieures de l'Université Laval dans le cadre du programme de maîtrise en médecine expérimentale pour l'obtention du grade de maître es science (M.Sc.) ..."
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à la Faculté des études supérieures de l'Université Laval dans le cadre du programme de maîtrise en médecine expérimentale pour l'obtention du grade de maître es science (M.Sc.)
THEORETICAL MODEL OF THE DYNAMIC INTERACTION BETWEEN WAGON TRAIN AND CONTINOUS RAIL MIHAI BUGARU∗
"... Abstract: The paper reveals the vibrations of a wagon with two bogies having elastic links and dampers between the wagon box and the bogie and also between the wheels and the bogie. The entire system has two vertical planes of symmetry therefore the models has 15 d.o.f.. The railway is considered el ..."
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elastic solid in both planes horizontal and vertical that induces forced vibrations of the wagon. The vibrations are studied using the Language’s equations and the Hamilton’s principle. By this way it was found for the first time a mathematical approach for the wagon box forced vibrations in connection
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