نتایج جستجو برای: piezo resistor

تعداد نتایج: 4682  

2017
Laipan Zhu Longfei Wang Fei Xue Libo Chen Jianqiang Fu Xiaolong Feng Tianfeng Li Zhong Lin Wang

The piezo-phototronic effect is about the enhanced separation, transport, and recombination of the photogenerated carriers using the piezoelectric polarization charges present in piezoelectric-semiconductor materials. Here, it is presented that the piezo-phototronic effect can be effectively applied to improve the relative conversion efficiency of a flexible solar cell based on n-ZnO/p-SnS core...

2016
Changhai Ru Peng Pan Ruihua Chen Kohji Masuda

Conventionally, intracytoplasmic sperm injection (ICSI) in the mouse is conducted with piezo-drills that use a droplet of mercury for damping. The use of mercury causes concerns of toxicity and contamination. Although Fluorinert can be used as a substitute for mercury to reduce piezo-drill’s lateral vibration, the damping effect is not as satisfactory as mercury. In this work, a modified piezo-...

Journal: :Frontiers in Mechanical Engineering 2022

The mode shapes of piezoelectric metamaterials are tuned by manipulating spatially the electrical boundary conditions piezo-elements, in a desired and controlled manner, order to tailor wave propagation characteristics through these metamaterials. piezo-elements using inductive shunting networks. With appropriate tuning optimization spatial distribution conditions, it would be possible alter sh...

2005
Chih-Jer Lin Sheng-Ren Yang

The piezo-actuated stages are composed of the piezo-electric actuator and the positioning mechanism. The positioning accuracy of the piezo-actuated stage is limited due to hysteretic nonlinearity of the PEA and friction behaviour of the positioning mechanism. To compensate this nonlinearity of piezoelectric actuator, a PI feedback control associated with feedforward compensating based on the hy...

Journal: :The Journal of biological chemistry 2014
Sviatoslav N Bagriantsev Elena O Gracheva Patrick G Gallagher

Piezo proteins have recently been identified as ion channels mediating mechanosensory transduction in mammalian cells. Characterization of these channels has yielded important insights into mechanisms of somatosensation, as well as other mechano-associated biologic processes such as sensing of shear stress, particularly in the vasculature, and regulation of urine flow and bladder distention. Ot...

2009
Paula Stein

Intracytoplasmic sperm injection (ICSI) is not only used in human assisted reproduction (ART), but it is also widely employed for veterinary in vitro fertilization during rare species preservation, germ-line rescue of transgenic animals or for any veterinary assisted conception. Piezo-assisted ICSI, which was first described in 1995 [1], can be employed for assisted conception in animals in whi...

2007
Shahzad Khan Ahmet Ozcan Nergiz Asif Sabanovic Volkan Patoglu

Bu bildiride, açık döngülü piezo-elektrik doğrusal sürücüler için yüksek çözünürlükte histerez telafisi gösterilmektedir. Piezo-elektrik malzemelerde yapıları gereği mevcut olan doğrusalsızlıklar, Bouc-Wen modeli kullanılarak model tabanlı bir kontrol algoritması ile telafi edilmiştir. Telafi için kullanılan yöntemin histerez davranışında zaman, değişen frekans ve farklı hareket genişliği neden...

2007
Motonori Okumura

Micro Piezo technology is offering superior features in ink ejection performance, compatibility with a wide variety of inks, and durability. As a result, this technology has already being utilized effectively in various commercial and industrial fields such as photo lab printing, digital printing, textile printing, and color filter manufacturing. However, new printheads that have a larger numbe...

Journal: :I. J. Bifurcation and Chaos 2007
Yoko Uwate Yoshifumi Nishio

In this study, synchronization phenomena observed in van der Pol oscillators coupled by a timevarying resistor are investigated. We realize the time-varying resistor by switching a positive and a negative resistor periodically. By carrying out circuit experiments and computer calculations, interesting synchronization phenomena can be confirmed to be generated in this system. Namely, the synchro...

In this paper, we report on the design and fabrication of a low-cost phase shifter for application in phase shifting interferometry. Phase shifting interferometry is a powerful method for surface characterization. It uses interference data recorded during a series of predetermined phase shifts to recover the induced phase by the object surface. These controlled phase shifts are typically perfor...

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