Micro and Nanosystems - Volume 13, Issue 4, 2021

Background: Iron tailing causes great environmental and social problems. They contaminate water, air and soil. Therefore, it is of important significance to prepare iron tailing ceramsites with microscale pores which can recycle the deposited iron tailing. Objective: The aim of the research is to obtain iron tailing ceramsites with microscale pores and good mechanical performance. Methods: The iron tailing ceramsi Read More

Background: Current comparators are useful in many analog circuits and communication systems. With the increasing demand to integrate wearable health monitoring systems in telemedicine and biomedical applications that help in early detection of abnormal conditions in patients, comparator is one of its cores. Objective: Wearable and implantable medical devices work primarily on the signal acquisition and wireles Read More

Background: Experimental data on the conditions for the formation of gravel materials containing hollow aluminosilicate microspheres with a possibility to receive optimum structure and properties depending on humidity with the use of various binders are presented in this article. This article focuses on the scientific study of the possibility to optimize the physical and mechanical properties of composite materials. Object Read More

Background: The formation and modification of the surface of polypropylene fibers provide a versatile material for a variety of applications. Objective: This research examines the production of new materials by pneumatic spraying of a polypropylene melt jet, on the surface of which metal and metal oxide nanoparticles are prepared using the sol-gel technique and photoreduction followed by ultra-high frequency proc Read More

Background: Scaling of the dimensions of semiconductor device plays a very important role in the advancement of Very Large-Scale Integration (VLSI) technology. There are many advantages of scaling in VLSI technology such as increment in the speed of the device and less area requirement of the device. Aggressive device scaling causes some limitations in the form of short channel effects which produce large l Read More

Background: Energy is a major concern in every aspect of our life. Solar energy is a renewable environmentally friendly source of energy. Therefore, solar cells are vastly studied with different technology and different material. Objective: The main objective here is to analyze InGaN material for solar cell applications with less complicated structures of MQW solar cells on revising solar cell with the recombination struc Read More

Background: An analysis of equivalent circuits used to interpret the impedance of bioelectrode for electrocardiography shows that the best description is achieved using a double-time constant model of the skin-electrode interface. However, for the measurements, it is necessary to use equipment with high input impedance, which leads to the loss of information about the real change in the bio-potential. Objective: The ai Read More

Fill factor in the negative permittivity materials are tailored within the physically permissible limits to characterize the Brillouin zone for two-dimensional crystal under the propagation of both s and p-polarized waves. Two lowermost band-gaps are computed along with corresponding mid-band frequencies, where the plane wave expansion method is invoked for computational purposes. The rectangular geometrical shape i Read More

Background: The porous SHS–TiNi alloy is a widely used material for repairing defects in bone tissues. Objective: The objective of the study is to comprehensively investigate porous SHS–TiNi alloy samples for fatigue strength under cyclic bending, to study deformation characteristics under quasistatic tension and bending, and to carry out the fractographic analysis of fracture features. Methods: The study employed the elect Read More

Objective: This paper presents the design and simulation of double bridge-type capacitive RF MEMS switch by using FEM Tool. Methods: It is mainly concentrated on a low pull-in voltage, capacitance, and RF analysis. The beam is considered as a gold metal having the length of 595 μm along with the 1μm thickness and the dielectric is taken as Silicon nitride (Si3N4) by using Ashby’s method. The non-uniform meandering technique Read More

Background: Microcantilever devices are widely used in biomedical because of their high sensitivity, better performance, low fabrication cost, robustness, and improved reliability over other equipment. The dynamic response of the device in different mediums, i.e., air, water and gas, depends on the vibrational mode. Vibrational modes decide how effectively the cantilever is going to respond while operating in a partic Read More

Aim: The aim of this study is the derivation and assessment of quantum scaling length of Cylindrical Surrounding Double-Gate (CSDG) MOSFET with respect to Silicon body thickness. Objectives: To derive the quantum natural length of CSDG MOSFET with respect of Silicon body Thickness, observe the behaviour of the CSDG MOSFET at the nanoscale regime and compare the behaviour of the CSDG MOSFET with Cylindrical Surroundi Read More