نتایج جستجو برای: electromechanical

تعداد نتایج: 6991  

2015
Kang Xu Ke Wang Wei Zhao Wenzhong Bao Erfu Liu Yafei Ren Miao Wang Yajun Fu Junwen Zeng Zhaoguo Li Wei Zhou Fengqi Song Xinran Wang Yi Shi Xiangang Wan Michael S Fuhrer Baigeng Wang Zhenhua Qiao Feng Miao Dingyu Xing

As the thinnest conductive and elastic material, graphene is expected to play a crucial role in post-Moore era. Besides applications on electronic devices, graphene has shown great potential for nano-electromechanical systems. While interlayer interactions play a key role in modifying the electronic structures of layered materials, no attention has been given to their impact on electromechanica...

2012
Vitya Vardanyan Olaf Pongs

The activation of voltage-dependent ion channels is initiated by potential-induced conformational rearrangements in the voltage-sensor domains that propagates to the pore domain (PD) and finally opens the ion conduction pathway. In potassium channels voltage-sensors are covalently linked to the pore via S4-S5 linkers at the cytoplasmic site of the PD. Transformation of membrane electric energy ...

2012
Luigi Vanfretti Sebastian Bengtsson Vemund H. Aarstrand Jan O. Gjerde

For power networks such as the Nordic Grid, that have operation constraints limits imposed by the existence of low-damped electromechanical oscillations, the estimation of electromechanical mode properties is of crucial importance for providing power system control room operators with adequate indicators of the stress of their network. This article addresses the practical application of differe...

2000
Matthew I. Campbell Jonathan Cagan Kenneth Kotovsky

A new automated approach to engineering design known as A-design is presented that creates design configurations through the interaction of software agents. By combining unique problem solving strategies, these agents are able to generate solutions to openended design problems. The A-design methodology makes several theoretical claims through its combination of multiagent systems, multiobjectiv...

Journal: :American journal of physiology. Heart and circulatory physiology 2011
Natalia A Trayanova Jason Constantino Viatcheslav Gurev

Computational modeling has traditionally played an important role in dissecting the mechanisms for cardiac dysfunction. Ventricular electromechanical models, likely the most sophisticated virtual organs to date, integrate detailed information across the spatial scales of cardiac electrophysiology and mechanics and are capable of capturing the emergent behavior and the interaction between electr...

2017
Abdallah Almomani Wei Hong Reza Montazami

Ionic polymer-metal composite (IPMC) actuators have considerable potential for a wide range of applications. Although IPMC actuators are widely studied for their electromechanical properties, most studies have been conducted at the ambient conditions. The electromechanical performance of IPMC actuators at higher temperature is still far from understood. In this study, the effect of temperature ...

2016
Özlem Arıcan Özlük Mustafa Yılmaz Serkan Yazıcı Tezcan Peker Dursun Topal Kemal Karaagac Fahriye Vatansever Alkame Akgumus Erhan Tenekecioglu Lale Dinç Asarcıklı Selçuk Kanat Yeşim Güray Burcu Demirkan

Objectıves: Many systemic diseases including cardiovascular disturbances have been described in psoriatic patients. In the previous studies, left ventricul (LV) subclinical myocadial dysfunction was reported in the psoriasis patients. To evaluate the effect of psoriasis on left atrial (LA) functions, which is an important determinant left ventricular filling, atrial electromechanical coupling a...

2012
D R Schmid P L Stiller Ch Strunk A K Hüttel

A suspended, doubly clamped single-wall carbon nanotube is characterized at cryogenic temperatures. We observe specific switching effects in dc-current spectroscopy of the embedded quantum dot. These have been identified previously as nano-electromechanical self-excitation of the system, where positive feedback from single-electron tunneling drives mechanical motion. A magnetic field suppresses...

2007
YUNG-SUNG CHUANG SHU-CHEN WANG CHI-JUI WU PEI-HWA HUANG

This paper is used to investigate a novel decentralized pole placement design method of lead-lag type power system stabilizers using hybrid differential evolution (HDE). Since the local speed deviations are used as the feedback signals, the stabilizers could be easily implemented. In the design procedures, it wants to place the electromechanical modes within a designated region in the complex v...

2003
G. M. Odegard

A new modeling approach is proposed for predicting the bulk electromechanical properties of piezoelectric composites. The proposed model offers the same level of convenience as the wellknown Mori-Tanaka method. The electromechanical properties of four piezoelectric polymer composite materials are predicted with the proposed, Mori-Tanaka, Self-consistent methods, and detailed finite element anal...

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