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Acoustic particle palpation for measuring tissue elasticity

Körük, Hasan; El Ghamrawy, Ahmed; Pouliopoulos, Antonios N.; Choi, James J. (American Institute of Physics, 2015-12-01)

We propose acoustic particle palpation—the use of sound to press a population of acoustic particles against an interface—as a method for measuring the qualitative and quantitative mechanical properties of materials. We ...

The age of anxiety? It depends where you look: changes in STAI trait anxiety, 1970-2010

Booth, Robert William; Leader, Tirza I.; Sharma, Dinkar (Springer, 2016-02)

Purpose Population-level surveys suggest that anxiety has been increasing in several nations, including the USA and UK. We sought to verify the apparent anxiety increases by looking for systematic changes in mean anxiety ...

Application of ultrasonic vibrations for minimization of the accumulation of limescale in steam irons

Körük, Hasan; Serenli, Muzaffer; Şanlıtürk, Kenan Yüce (Elsevier Ltd., 2018-06-01)

The accumulation of limescale in steam irons can significantly reduce the ironing efficiency. It is this problem that inspired us to introduce ultrasonic vibrations to irons in order to minimize limescale accumulation. ...

The Architecture of a Library in a Digital World

Çimen, Ertuğrul (Emerald Group Publishing Limited, 2016-11-18)

Introduction: As a librarian with over 25 years of experience, I can say that the past five years have seen more rapid change than the rest of my time in the field. Technological disruptions are changing how libraries ...

Arıkanlı Holding'in kurucusu İbrahim Arıkan hayatını kaybetti

haberturk.com (haberturk.com, 2016-02-02)

Arıkanlı Holding'in kurucusu İbrahim Arıkan hayatını kaybetti 02 Şubat 2016 Salı, 13:15:36Güncelleme: 14:09:21 Yurtiçi Kargo ve MEF okullarını da bünyesinde barındıran Arıkanlı Holding'in kurucusu Dr. İbrahim Arıkan ...

Arıkanlı Holding'in kurucusu İbrahim Arıkan hayatını kaybetti

zaman.com.tr (zaman.com.tr ( DHA), 2016-02-02)

Arıkanlı Holding'in kurucusu İbrahim Arıkan hayatını kaybetti. MEF Okulları'nı da içinde barındıran Arıkanlı Holding'in kurucusu, İbrahim Arıkan vefat etti. 22 Ocak 1941 tarihinde doğan Arıkan'ın cenazesi için ilk tören ...

Arıkanlı Holding'in kurucusu İbrahim Arıkan hayatını kaybetti

hurriyet.com.tr (2016-02-02)

Yurtiçi Kargo ve MEF Okulları'nın bağlı olduğu Arıkanlı Holding’in kurucusu İbrahim Arıkan hayatını kaybetti. 22 Ocak 1941 tarihinde doğan Arıkan’ın vefatının ardından Arıkanlı Holding bir taziye mesajı yayımladı. ...

An assessment of the performance of impedance tube method

Körük, Hasan (Institute of Noise Control Engineering, 2014-07-01)

The impedance tube method is widely used for measuring sound absorption (or reflection) coefficients of acoustic materials as a function of frequency. However, the sound absorption coefficients obtained using the impedance ...

Brief time course of trait anxiety-related attentional bias to fearconditioned stimuli: Evidence from the dual-RSVP task

Booth, Robert William (Elsevier, 2016-07-01)

Background and objectives Attentional bias to threat is a much-studied feature of anxiety; it is typically assessed using response time (RT) tasks such as the dot probe. Findings regarding the time course of attentional ...

Characterization of Viscoelastic Materials Using Free-Layered and Sandwiched Samples: Assessment and Recommendations

Özer, Mehmet Sait; Körük, Hasan; Şanlıtürk, Kenan Yüce (Polish Physical Society, 2015-04-01)

Viscoelastic materials are widely used in many applications in practice. However, determination of the elastic and damping properties of these materials is quite difficult in the sense that the identified results may contain ...

Detection of air leakage into vacuum packages using acoustic measurements and estimation of defect size

Körük, Hasan; Şanlıtürk, Kenan Yüce (Elsevier Ltd., 2019-01-01)

Air leakages in food and ingredient packages which are sealed in vacuum environments may cause a marked deterioration of the product, leading to a loss of functionality. Manufacturers of such products have very stringent ...

The effects of ultrasound parameters and microbubble concentration on acoustic particle palpation

Saharkhiz, Niloufar; Körük, Hasan; Choi, James J. (Acoustical Society of America, 2018-08-17)

The elasticity of tissue—an indicator of disease progression—can be imaged by ultrasound elasticity imaging technologies. An acoustic particle palpation (APP) has recently been developed—the use of ultrasonically driven ...

Identification of crack noises in household refrigerators

Körük, Hasan; Arısoy, Ahmet (Elsevier Ltd., 2015-03-01)

The crack noises propagating from a refrigerator disturb residents in a household; however, the reasons behind the mechanisms of such noises have not been identified yet. In this study, the crack noises in modern household ...

Identification of the Dynamic Characteristics of Luffa Fiber Reinforced Bio-Composite Plates

Genç, Garip; Körük, Hasan (NC State University, 2017-06-07)

Luffa cylindrica plant fiber is a new biodegradable engineering material. However, the dynamic behaviors of these new green materials or their composites should be explored to consider them for practical applications. The ...

Investigation of the acoustic properties of bio luffa fiber and composite materials

Körük, Hasan; Genç, Garip (Elsevier, 2015-10-15)

Considering the adverse effects of petroleum-based materials on nature, finding and developing new materials as alternatives to these chemical materials become a necessity in practice. On the other hand, these new materials ...

Investigation of the vibro-acoustic behaviors of luffa bio composites and assessment of their use for practical applications

Genç, Garip; Körük, Hasan (The International Institute of Acoustics and Vibration, 2016-07-10)

New materials as alternatives to petroleum-based composite materials are needed due to adverse effects of chemical materials on nature. On the other hand, there is a need to characterize and evaluate new alternative materials ...