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71.
Yasin Cotur Michael Kasimatis Matti Kaisti Selin Olenik Charis Georgiou Firat Güder 《Advanced functional materials》2020,30(16)
A highly flexible, stretchable, and mechanically robust low‐cost soft composite consisting of silicone polymers and water (or hydrogels) is reported. When combined with conventional acoustic transducers, the materials reported enable high performance real‐time monitoring of heart and respiratory patterns over layers of clothing (or furry skin of animals) without the need for direct contact with the skin. The approach enables an entirely new method of fabrication that involves encapsulation of water and hydrogels with silicones and exploits the ability of sound waves to travel through the body. The system proposed outperforms commercial, metal‐based stethoscopes for the auscultation of the heart when worn over clothing and is less susceptible to motion artefacts. The system both with human and furry animal subjects (i.e., dogs), primarily focusing on monitoring the heart, is tested; however, initial results on monitoring breathing are also presented. This work is especially important because it is the first demonstration of a stretchable sensor that is suitable for use with furry animals and does not require shaving of the animal for data acquisition. 相似文献
72.
73.
This paper describes the characteristics of a new CAD tool that enables the creation of layout libraries of selected analog modules. This Analog Modules Generator (AMG) automatically creates multiple layout versions of two commonly used analog structures: the differential pair and arrays of series-connected or stacked devices, for the subsequent generation of layout libraries. Based on the number of devices and rows defined by the user for the layout implementation, the tool validates all possible implementations, which are later saved in a database. Additionally, an extraction process can be optionally executed over all the layout views saved in the database. The AMG generates several reports with all the characteristics of the implemented layouts, including area and parasitic components, facilitating further statistical processing. We describe the features and capabilities of the proposed AMG tool, and several test cases are presented. Results show that suitable layout implementations can be achieved by layout and circuit designers in a very reduced amount of time. 相似文献
74.
液晶微透镜阵列研究进展 总被引:1,自引:0,他引:1
王建国 《激光与光电子学进展》2013,50(1):10005-63
液晶微透镜阵列是基于微透镜光子技术和液晶技术而发展起来的学科交叉研究领域。就液晶微透镜阵列的工作原理、主要设计方法及其研究进展进行了论述,并对微透镜阵列的发展趋势及尚待解决的问题进行了总结。 相似文献
75.
Jesus E. Molinar-Solis Felipe Gomez-Castaneda Jose A. Moreno-Cadenas Victor H. Ponce-Ponce 《The Journal of VLSI Signal Processing》2007,49(1):207-216
At present, the Cellular Neural Network (CNN) is a potential parallel structure able to perform image processing tasks in
real-time when is effectively implemented in CMOS technology. The CNN silicon integration success is due mainly to the local
connectivity of processing cells. In this work, an alternative design based on floating-gate MOS inverters is presented, which
uses unipolar signals for solving binary tasks. The approach brings a fast response in a reduced silicon area, as shown through
electrical simulations. A prototype cell in CMOS technology (AMI, 1.2 micron) was fabricated and tested for eight image processing
tasks.
相似文献
Victor H. Ponce-Ponce |
76.
The effect of Rasba spin–orbit interaction (SOI) on the magnetocapacitance of the 2DEG in a MODFET is investigated. We present calculations on the density of states (DOS) of the 2DEG in a MODFET under the influence of both Rasba SOI and weak two-dimensional periodic modulation. Adopting a Gaussian broadening of magnetic-field-dependent width, we present a simple expression for the DOS, valid for the relevant weak magnetic fields and modulation strengths. In the presence of Rasba SOI and for weak potential modulation strengths, a typical beating pattern of the magnetocapacitance oscillations is observed in the low magnetic filed range. A simple relation that predicts the positions of nodes in the beating patterns is obtained. The interplay between the SOI and the periodic potential modulation is discussed. 相似文献
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79.
César O. Avellaneda Karim Dahmouche Luis O.S. Bulhões Agnieszka Pawlicka 《Journal of Sol-Gel Science and Technology》2000,19(1-3):447-451
Electrochemical lithium intercalation in thin films of CeO2-TiO2 and WO3, prepared by the sol-gel technique was investigated with cyclic voltammetry and spectroelectrochemical techniques in propylene carbonate solutions. A solid state system having the configuration WO3/Ormolyte/CeO2-TiO2 has been assembled. The solid electrolyte, an organically modified electrolyte (ormolyte), was prepared with different [O]/[Li] ratios. The transmittance variation of this system during a potentiostatic step from –0.7 V to 0.8 V was about 35% at 550 nm. 相似文献