Impact factors on lubricant performance of stern bearing with misalignment angle induced by transverse vibration of shaft

2020 ◽  
Vol 216 ◽  
pp. 108051
Author(s):  
Qianwen Huang ◽  
Xinping Yan
2012 ◽  
Vol 17 (3) ◽  
pp. 190-198 ◽  
Author(s):  
Günter Krampen ◽  
Thomas Huckert ◽  
Gabriel Schui

Exemplary for other than English-language psychology journals, the impact of recent Anglicization of five former German-language psychology journals on (1) authorship (nationality, i.e., native language, and number of authors, i.e., single or multiple authorships), (2) formal characteristics of the journal (number of articles per volume and length of articles), and (3) number of citations of the articles in other journal articles, the language of the citing publications, and the impact factors (IF) is analyzed. Scientometric data on these variables are gathered for all articles published in the four years before anglicizing and in the four years after anglicizing the same journal. Results reveal rather quick changes: Citations per year since original articles’ publication increase significantly, and the IF of the journals go up markedly. Frequencies of citing in German-language journals decrease, citing in English-language journals increase significantly after the Anglicization of former German-language psychology journals, and there is a general trend of increasing citations in other languages as well. Side effects of anglicizing former German-language psychology journals include the publication of shorter papers, their availability to a more international authorship, and a slight, but significant increase in multiple authorships.


1980 ◽  
Vol 35 (11) ◽  
pp. 1048-1049 ◽  
Author(s):  
Leighton E. Stamps ◽  
Lawrence A. Fehr
Keyword(s):  

Phlebologie ◽  
1998 ◽  
Vol 27 (03) ◽  
pp. 77-83
Author(s):  
A. Finzen

ZusammenfassungWissenschaftliche Leistungen leben von der Originalität ihrer Urheber. Der Ver-such, sie zu quantifizieren, erscheint als Widerspruch in sich. Um so irritierender ist der Siegeszug des sogenannten Impact Factors, eines Konstrukts des amerikanischen Institute of Scientific Information (ISI), das den Anspruch stellt, über die Häufigkeit der Zitierung von – vom ISI erfaßten – Zeitschriften das Gewicht der in diesen publizierenden Wissenschaftler zu messen. Seit naturwissenschaftliche und medizinische Forschungseinrichtungen und Fakultäten dazu übergehen, den Impact Factor zur Grundlage für die Verteilung von Forschungsgeldern und zur Guillotine für wissenschaftliche Karrieren zu machen, schickt er sich an, die internationale Wissenschaftskultur zu verändern. Deshalb ist es an der Zeit, daß die Öffentlichkeit dieses Zeitgeistphänomen zur Kenntnis nimmt und sich mit seinen Folgen auseinandersetzt.


2020 ◽  
Vol 7 (3) ◽  
pp. 52-56
Author(s):  
MMATMATISA JALILOV ◽  
◽  
RUSTAM RAKHIMOV ◽  

This article discusses the analysis of the general equations of the transverse vibration of a piecewise homogeneous viscoelastic plate obtained in the “Oscillation of inlayer plates of constant thickness” [1]. In the present work on the basis of a mathematical method, the approached theory of fluctuation of the two-layer plates, based on plate consideration as three dimensional body, on exact statement of a three dimensional mathematical regional problem of fluctuation is stood at the external efforts causing cross-section fluctuations. The general equations of fluctuations of piecewise homogeneous viscoelastic plates of the constant thickness, described in work [1], are difficult on structure and contain derivatives of any order on coordinates x, y and time t and consequently are not suitable for the decision of applied problems and carrying out of engineering calculations. For the decision of applied problems instead of the general equations it is expedient to use confidants who include this or that final order on derivatives. The classical equations of cross-section fluctuation of a plate contain derivatives not above 4th order, and for piecewise homogeneous or two-layer plates the elementary approached equation of fluctuation is the equation of the sixth order. On the basis of the analytical decision of a problem the general and approached decisions of a problem are under construction, are deduced the equation of fluctuation of piecewise homogeneous two-layer plates taking into account rigid contact on border between layers, and also taking into account mechanical and rheological properties of a material of a plate. The received theoretical results for the decision of dynamic problems of cross-section fluctuation of piecewise homogeneous two-layer plates of a constant thickness taking into account viscous properties of their material allow to count more precisely the is intense-deformed status of plates at non-stationary external loadings.


2009 ◽  
Vol E92-B (4) ◽  
pp. 1233-1243
Author(s):  
Yasuhiro SATO ◽  
Shingo ATA ◽  
Ikuo OKA ◽  
Chikato FUJIWARA

2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Bùi Thị Bích Lan

In Vietnam, the construction of hydropower projects has contributed significantly in the cause of industrialization and modernization of the country. The place where hydropower projects are built is mostly inhabited by ethnic minorities - communities that rely primarily on land, a very important source of livelihood security. In the context of the lack of common productive land in resettlement areas, the orientation for agricultural production is to promote indigenous knowledge combined with increasing scientific and technical application; shifting from small-scale production practices to large-scale commodity production. However, the research results of this article show that many obstacles in the transition process are being posed such as limitations on natural resources, traditional production thinking or the suitability and effectiveness of scientific - technical application models. When agricultural production does not ensure food security, a number of implications for people’s lives are increasingly evident, such as poverty, preserving cultural identity, social relations and resource protection. Since then, it has set the role of the State in researching and building appropriate agricultural production models to exploit local strengths and ensure sustainability.


2019 ◽  
Vol 3 ◽  
pp. 13 ◽  
Author(s):  
Vishnu Chandra ◽  
Neil Jain ◽  
Pratik Shukla ◽  
Ethan Wajswol ◽  
Sohail Contractor ◽  
...  

Objectives: The integrated interventional radiology (IR) residency has only been established relatively recently as compared to other specialties. Although some preliminary information is available based on survey data five, no comprehensive bibliometric analysis documenting the importance of the quantity and quality of research in applying to an integrated-IR program currently exists. As the first bibliometric analysis of matched IR residents, the data obtained from this study fills a gap in the literature. Materials and Methods: A list of matched residents from the 2018 integrated-IR match were identified by contacting program directors. The Scopus database was used to search for resident research information, including total publications, first-author publications, radiology-related publications, and h-indices. Each matriculating program was categorized into one of five tiers based on the average faculty Hirsch index (h-index). Results: Sixty-three programs and 117 matched residents were identified and reviewed on the Scopus database. For the 2018 cycle, 274 total publications were produced by matched applicants, with a mean of 2.34 ± 0.41 publication per matched applicant. The average h-index for matched applicants was 0.96 ± 0.13. On univariate analysis, the number of radiology-related publications, highest journal impact factor, and h-index were all associated with an increased likelihood of matching into a higher tier program (P < 0.05). Other research variables displayed no statistical significance. All applicants with PhDs matched into tier one programs. Conclusions: Research serves as an important element in successfully matching into an integrated-IR residency. h-index, number of radiology-related manuscripts, and highest journal impact factors are all positively associated with matching into a higher tier program.


2020 ◽  
Vol 86 (3) ◽  
pp. 32-38
Author(s):  
B. I. Kovalsky ◽  
Yu. N. Bezborodov ◽  
N. N. Lysyannikova ◽  
E. G. Kravtsova ◽  
V. G. Shram ◽  
...  

Author(s):  
Brendan Luyt

This paper argues that the rise of the JIF is a result of the perceived value of quantification measures in modern society and the restructuring of capitalism. Two key implications of this acceptance are explored: an increase in global academic dependency and a lessening of autonomy in the scientific field.Cet article défend la thèse que la montée du FIRS est le résultat de la valeur perçue des mesures de quantification de la société moderne et de la restructuration du capitalisme. Seront explorées deux conséquences importantes de cette acceptation : une augmentation de la dépendance globale du milieu universitaire et une perte d'autonomie du milieu de la science. 


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