Ara
Toplam kayıt 59, listelenen: 1-10
Linear analysis of chatter vibration and stability for orthogonal cutting in turning
(2011)
The productivity of high speed milling operations is limited by the onset of self-excited vibrations known as chatter. Unless avoided, chatter vibrations may cause large dynamic loads damaging the machine spindle, cutting ...
Two new pyridine-2,3-dicarboxylate coordination polymers prepared from zerovalent metal precursor: Syntheses, luminescent and magnetic properties
(Academic Press Inc Elsevier Science, 2014)
Two new K+/Cu(II) and Zn(II) coordination polymers with pyridine-2,3-dicarboxylate (pydc), {K-2[Cu(mu-PYdc)(2)] center dot 3H(2)O}(n) (1) and {[Zn(mu-pydc)(H2O)(4-mim)] center dot H2O}(n) (2) (4-mim=4-methylimidazole) have ...
Effect of substituent groups on the structures of two semi-flexible bis(imidazole) directed Zn(II)-5-sulfoisophthalate coordination polymers: Syntheses, structures and photoluminescent properties
(Pergamon-Elsevier Science Ltd, 2018)
Two new metal organic architectures, formulated as {(pbetixH(2))(0.5)[Zn(mu-sip)(mu-pbetix)(0.5)]}(n) (1) and {[Zn-2(mu-sip)(2)(pbisopix)(pbisopixH)(2)]center dot 4H(2)O}(n) (2), were synthesized based on the rarely employed ...
A Fixed Speed Induction Generator Model for Unbalanced Power Flow Analysis
(Ieee, 2014)
This paper proposes a model of the induction generator for the phase-domain power flow analysis of fixed speed wind turbine generating systems connected to balanced or unbalanced three-phase distribution systems. The ...
Decomposition of Process Damping Ratios and Verification of Process Damping Model for Chatter Vibration
(2012)
In the previous study, by the same authors, titled ‘‘A new process damping model (PDM) for chatter vibration (Measurement, 44 (8) (2011) 1342–1348)’’, a new approach has been presented for obtaining process damping ratios ...
A simple approach to analyze process damping in chatter vibration
(2014)
This paper investigates how changes in chatter amplitude and frequency depend on process damping effect in dynamic turning process. For this purpose, the two degrees of freedom (TDOF) cutting system was modeled, and for ...
A Study Based On To Determine University Students' Perspective Intended For European Union Membership
(2012)
Bu çalışmada; üniversite eğitimi alan gençlerin Türkiye’nin AB’ye üyelik sürecine bakış açıları ve üniversite eğitimi alan gençlerin AB üyeliğinden ekonomik ve özgürlükler anlamında beklentileri belirlenmeye çalışılmıştır. ...
Optimization of tool geometry parameters for turning operations based on the response surface methodology
(2011)
This investigation focuses on the influence of tool geometry on the surface finish obtained in turning of AISI 1040 steel. In order to find out the effect of tool geometry parameters on the surface roughness during ...
A Comparative Analysis of Alternative Energy Sources Used in Automobiles
(2014-06-18)
Due to the rapid decline of oil reserves and the environmental regulations that lower the limit values of exhaust emissions released into the atmosphere the car makers and the scientific communities have been accelerating ...
Halk Kütüphanelerinde Çocuklara ve Gençlere Yönelik Yenilikçi Bilgi Hizmetleri:Türkiye’de Durum
(2013)
Çocukların ve gençlerin kütüphane kullanma alışkanlığının günden güne azaldığı günümüzde; halk kütüphanelerinin amaçlarına ulaşması ve varlıklarını devam ettirmeleri için her geçen gün hızla farklılaşan koşullara uyum ...