Results 21 to 30 of about 8,075 (157)

Investigating dynamics of machine tool spindles under operational conditions [PDF]

open access: yes, 2011
Chatter is one of the major problems in machining and can be avoided by stability diagrams which are generated using frequency response functions (FRF) at the tool tip.
Budak, Erhan   +4 more
core   +1 more source

Analytical Modeling of Transverse Vibrations and Acoustic Pressure Mitigation for Rotating Annular Disks

open access: yesMathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
This paper gives an analytical approach for investigating free and forced transverse vibrations of a clamped‐free rotating annular disk and obtaining the acoustic pressure distribution around the spinning disk. In the beginning, a modal analysis based on new analytical methods is carried out to find natural frequencies and mode shapes of the disk ...
Hamed Norouzi, Davood Younesian, Ji Wang
wiley   +1 more source

Ergenlerde Dindarlık, Narsizm ve Özgüven

open access: yesTurkish Academic Research Review, 2019
Buaraştırma, lise öğrencilerinde dindarlık, narsizm ve özgüven arasındakiilişkiyi incelemeyi amaçlamıştır. Çalışmada, Antalya ilinin Korkuteli ilçesindealtı farklı lisede öğrenim gören 606 öğrenciyle anket çalışması yürütülmüştür.
Orhan Gürsu   +1 more
doaj   +1 more source

Modelling of Elastic Gearboxes Using a Generalized Gear Contact Model [PDF]

open access: yes, 2012
The object of this paper is to present an universal model that describes the gear contact between two gears in a planar environment. The model includes elastic effects between the gear wheels.
van der Linden, Franciscus
core   +1 more source

Examination of parental and special education teachers' attitudes towards sports activities of students with intellectual disability [PDF]

open access: yes, 2018
The purpose of this study was to examine the attitudes of parents of students with intellectual disability and special education teachers working in special education schools to the sports activities of students with intellectual disability (ID).The ...
Aslan, Şehmus
core   +1 more source

Öğretmen Adaylarının Özgüvenleri ile Teknoloji Kullanımları Arasındaki İlişkinin İncelenmesi

open access: yesNecmettin Erbakan Üniversitesi Ahmet Keleşoğlu Eğitim Fakültesi Dergisi, 2019
Bu çalışmada öğretmen adayların özgüvenleri ile teknoloji kullanımları arasındaki ilişki incelenmiştir. Tarama modeli kullanılarak yapılan araştırmada 345 kişilik çalışma gurubu kullanılmıştır.
Ahmet Çoklar, Mahmut Çalışkan
doaj   +1 more source

Futbolcuların Antrenörleri ile Bağlanma Stillerinin Belirlenmesi

open access: yesSportif Bakış Spor ve Eğitim Bilimleri Dergisi, 2021
Bu çalışmada futbolcuların antrenörleri ile bağlanma stillerinin belirlenmesi ve çeşitli değişkenlere göre karşılaştırılması amaçlanmıştır. Sporcuların antrenörleri ile arasındaki ilişki hedefler doğrultusunda hareket edebilmek için önemli bir unsurdur ...
Fatih Kayhan, Ali Kızılet
doaj   +1 more source

Effect analysis of bearing and interface dynamics on tool point FRF for chatter stability in machine tools by using a new analytical model for spindle-tool assemblies [PDF]

open access: yes, 2007
Self-excited vibration of the tool, regenerative chatter, can be predicted and eliminated if the stability lobe diagram of the spindle–holder–tool assembly is known.
Budak, Erhan   +4 more
core   +1 more source

Chemical–physical characteristics, polyphenolic content and total antioxidant activity of three Italian-grown pomegranate cultivars [PDF]

open access: yes, 2019
Background In Mediterranean countries, there is an increasing demand for pomegranate fruits due to their antioxidant properties and nutritional values.
Farina, Vittorio   +6 more
core   +1 more source

Selection of design and operational parameters in spindle-holder-tool assemblies for maximum chatter stability by using a new analytical model [PDF]

open access: yes, 2007
In this paper, using the analytical model developed by the authors, the effects of certain system design and operational parameters on the tool point FRF, thus on the chatter stability are studied.
Budak, Erhan   +4 more
core   +1 more source

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