The well-crystallized ZnO nanoparticles were synthesized by a simple and facile soft chemical approach, their induction of oxidative stress in Cloudman S91 melanoma cancer cells was studied. characterized for morphology, structure, optical properties. with the average size approximately 10 nm grew high density, possessing wurtzite hexagonal phase. To study cells, various doses treated 24 h incubation at 37 degrees C. viability analyzed MTT method, whereas morphology observed via confocal...

A novel frequency selective surface (FSS)-based spatial bandpass filter for TM-polarized waves is reported. The unit cell of the proposed FSS consists a dielectric substrate with two conducting layers on opposite sides. One magnetic resonator placed top layer, while pairs electric resonators are positioned bottom layer to provide fast roll-off characteristic. simulated values −3 dB −10 factor (RF) structure 140 and 280 dB/GHz lower upper sides its passband, respectively. To validate...

A close association between microwave (MW) radiation exposure and neurobehavioral disorders has been postulated but the direct effects of MW on central nervous system still remains contradictory. This study was performed to understand effect short (15 days) long-term (30 60 low-level hippocampus with special reference spatial learning memory its underlying mechanism in Swiss strain male mice, Mus musculus. Twelve-weeks old mice were exposed 2.45 GHz (continuous-wave [CW] overall average...

Microwave (MW) radiation induced oxidative stress reduces dendritic arborization, spine density and number of hippocampal pyramidal neurons hence, impair learning spatial memory through p53-dependent/independent apoptosis neuronal nonneuronal cells. However, the mechanisms responsible for MW impairment in formation remains still unknown. This study elucidates effect short (15 days) long-term (30 60 low level 2.45 GHz radiation-induced local on pathway adult male mice. Twelve-weeks old mice...

In this study, the simulation and experimental studies of a single‐sided broadband multiple‐input–multiple‐output (MIMO) antenna with without dual band‐rejection characteristics are discussed. The proposed consists two castor leaf‐shaped quasi‐self‐complementary elements, which arranged side‐by‐side in mirror‐image configuration. provides good isolation between its ports using any technique. simulated impedance bandwidths optimally designed 142.5% (2.2–13.1 GHz) 133.3% (2.6–13.0 GHz),...

This paper presents a secure spread-spectrum watermarking algorithm for digital images in discrete wavelet transform (DWT) domain. The is applied embedding watermarks like patient identification /source or doctors signature binary image format into host radiological potential telemedicine applications. Performance of the analysed by varying gain factor, subband decomposition levels, size watermark, filters and medical modalities. Simulation results show that proposed method achieves higher...

High angular stability dual-band (C- and X-band) stop frequency selective surface based spatial filter is proposed in this article for blocking the satellite downlink frequencies. The unit cell of structure consists vertical horizontal dipoles having two folded arms. transmission coefficient designated bands, i.e., 3.7–4.2 GHz 7.25–7.75 has been obtained less than −10 dB. current distribution equivalent circuit model have illustrated to explain resonance behavior response filter. gives a...

ABSTRACT In this article, the simulation and experimental studies on a novel compact broadband coplanar waveguide (CPW)‐fed flower‐shaped microstrip patch antenna are reported. The proposed is modified version of circular patch. Although has largest radius (= 12.5 mm) equal to patch, it provides much wider impedance bandwidth lower first resonant frequency as compared with CPW‐fed antenna. itself capable providing good match CPW feed without any modification line ground plane. simulated...

This paper presents the simulation and experimental studies of a conformal microstrip slot antenna integrated with artificial magnetic conductor (AMC) for hyperthermia application. In proposed applicator, an AMC consisting array modified ring patches on grounded dielectric substrate is located at optimized distance (=4 mm) from improved performance applicator. The feed configuration consists tapered line curved tuning stub. configurations are to widen its bandwidth so that changes in...

Abstract Deleterious effects of MW radiation on the male reproduction are well studied. Previous reports although suggest that 2.45 GHz irradiation induced oxidative and nitrosative stress adversely affects reproductive function but detailed molecular mechanism occurring behind it has yet to be elucidated. The aim present study was investigate underlying pathway testicular apoptosis by free radical load redox imbalance due exposure degree severity along with increased duration. Twelve‐week...

This paper presents the simulation study of a wideband modified fractal rectangular curve iteration-1 (FRC-1) dielectric resonator antenna (DRA) along with conventional FRC DRAs different iteration levels for WiMAX application. The has been carried out using CST Microwave Studio software. design procedure and radiation performance characteristics are described results FRC-1 DRA compared those identical outer dimensions. material constant dependent both also presented. presented here may be...

This study presents the design of water‐loaded metal diagonal horn antenna at 2450 MHz along with simulation and experimental studies specific absorption rate (SAR) temperature distributions in a bio‐medium (muscle) direct contact for hyperthermia application. The is multimode antenna, identical aperture field distribution E ‐ H ‐planes. SAR phantom muscle measured nearly agreement corresponding simulated distribution. results owing to are also compared those square horn/box horn, same...

In this paper, an efficient atlas based approach for multiple abdominal organ segmentation is presented.This automatic of different organs such as spine, kidneys, liver, aorta, spleen image on allocation spine landmark.In current years several researches has been done developing techniques CT images however still it incredibly challenging task to segment efficiently and appropriately.This paper proposed a fully system by marking landmark extract using fuzzy system.The technique uses the fact...

A wideband dual segment three element triangular dielec- tric resonator antenna (TDRA) has been proposed for applications in X-band. Proposed fabricated and tested. The simu- lation study of the is carried out using Ansoft HFSS simulation software. results input characteristics radiation patterns are compared with corresponding ex- perimental at resonant frequency. agreement measurement results. return loss-frequency also those single element, TDRAs.

In this study, a new compact broadband two‐port multiple‐input–multiple‐output (MIMO) antenna using shared radiator is proposed. The making an angle of 135° from X ‐axis symmetrically by two tapered microstrip feed lines in orthogonal polarisations. MIMO more as compared with conventional which uses separate for each port. proposed designed on low‐cost FR4 substrate (dielectric constant = 4.4, and loss tangent 0.02) size 39 × mm 2 provides bandwidth 136.63% (2.4–12.75 GHz) reflection...

Present study was carried out to investigate the effect of long‐term mobile phone radiation exposure in different operative modes (Dialing, Receiving, and Stand‐by) on immature male mice. Three‐week old mice were exposed (1800 MHz) for 3 hr/day 120 days modes. To check changes/alteration testicular histoarchitecture serum testosterone level, HE staining ELISA performed respectively. Further, we have checked redox status (ROS, NO, MDA antioxidant enzymes: SOD, CAT, GPx) by biochemical...

In this letter, a simple, effective, and computationally efficient approach for the synthesis of uniformly excited unequally spaced linear antenna (USLA) arrays is proposed. The proposed deals with determination optimum elements' density on aperture, which empowers technique flexibility increased search competency in attaining maximum possible reduction peak sidelobe level (PSLL). present study, an inertia-weight particle swarm optimization (IW-PSO) algorithm employed USLA arrays. Numerical...

A new type of antenna named as compound box-horn is designed and analyzed for its radiation pattern.The present analysis based on plane wave spectra three-dimensional fields.The obtained by combining modified pyramidal horn antennas, in which coupled to excite TE 10 -and 30modes at the input horn.Thus, boxhorn has properties advantages both antennas.The patterns corresponding half-power beam widths (HPBWs) free-space are computed GHz compared different flare angles E-and H-planes larger size...

A novel, potential and efficient microwave direct contact hyperthermia applicator referred to as water-loaded box-horn for therapeutic heating of bio-medium is designed developed at 915 2450 MHz.Also, theoretical expressions fields in produced by a have been derived using plane wave spectral technique.The special type dual mode horn antenna which supports TE 10 -and 30modes.Therefore, the aperture field distribution over H-plane nearly uniform prevents steep temperature gradients...

The simulation and experimental studies of an aperture-coupled wideband dual segment rectangular dielectric resonator antenna with metamaterial for C-band applications are presented in this paper. consists Alumina (Al2O3) ceramic as upper Teflon lower segment. combination circular-shaped coplanar split-ring conducting strip has been used superstrate. With the use superstrate, bandwidth is increased by 48% through 22% experimentally. broadside radiation pattern converted into directive...