Search
375 articles for “Resonator”
-
Design of Microstrip Yagi Uda Antenna by Using Triangular Patches
Abstract: AbstractA novel design of microstrip yagi uda antenna by using triangular patches at resonating frequency of 9.4 GHz is proposed in this paper. The microstrip antenna is designed by using triangular patches which improves the gain, directivity and efficiency of the antenna. The microstrip yagi uda antenna was simulated by Computer simulation technique (CST) MW studio software. In this paper, the simulated results such as radiation pattern, input impedance, return …
Published in Current Trends in Information Technology · Vol. 3, Issue 1, 2013 · pp. 21–23 Read article
-
A Hybrid voice identification System with Fuzzy Technique and ART2 Neural Network on BPF Technique
Abstract: Abstract:In this work, we evaluate the performance of voice identification through the hybrid method using fuzzy and Adaptive Resonance Theory2. The Voice identification is an important task, which shows the active interaction of natural human-machine, for over last important two decades. The objective of this work, it is consists in working out an identification rate of voice identification. The proposed methodology presented allows evaluating the identification process which considers a …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 1–6 Read article
-
Compact Microstrip Patch Antenna Using Metamaterials To Perform As Narrow Band LTE Receiver Antenna
Abstract: This paper presents the review of various stages of development for improving the parameters of microstrip patch antenna. The main focus of paper is on metamaterials as this material is used to extend the capability of microstrip patch antenna and ultimately antenna can be improved for its utilization in different applications which were not earlier due to limitations of simple microstrip patch antenna. This paper also presented design of compact …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 24–29 Read article
-
Improvement in Return Loss of Power Splitter on EBG
Abstract: ABSTRACTIn this paper, it has been investigated to improve the return loss of a power splitter/ divider designed by partial removal of EBG rods. The EBG used is a rod structure and shows a Band Gap in the range of 1.55 to 2.9 GHz. The Power Splitter has a return loss at 2.45 GHz which falls in the range of the Band Gap. It has been found that in order …
Published in Journal of Communication Engineering & Systems · Vol. 1, Issue 1-3, 2011 · pp. 28–33 Read article
-
Amelioration of Parameters of Antenna using Metamaterial with Negative µ and ε for WLAN
Abstract: AbstractIn this paper, a Rectangular Microstrip Patch Antenna with “Multi Discoidal Rings” shaped metamaterial cover is designed and replicate at a height of 3.276mm from the ground plane. The antenna along with the proposed metamaterial cover is designed to resonate at 3.36 GHz frequency (in S-Band). Proposed metamaterial cover significantly reduces the return loss and increases the bandwidth and efficiency of the antenna in comparison to rectangular microstrip patch antenna …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 1, 2013 · pp. 4–10 Read article
-
Design of Ultra Wideband Square Aperture Shaped Microstrip (ASM) Antenna
Abstract: AbstractA compact coplanar waveguide-fed (CPW) microstrip antenna for ultra-wideband (UWB) wireless communication is presented. The antenna comprises a square aperture (24 mm × 24 mm) etched on the ground-plane of a printed circuit board and a modified rectangular shaped stub, also total size of the antenna is 30 mm × 30 mm. The lower edge of the band is attained by properly decoupling the resonant frequencies due to proper selection …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 2, 2013 · pp. 15–19 Read article
-
Co-planar Waveguide Circular Ring Microstrip Patch Antenna for WLAN Applications
Abstract: AbstractA printed circular microstrip patch antenna with a four rectangular shape strip and co planar rectangular ground plane has been proposed. Four rectangles of dimensions 4.8mm x3mm are arranged in such a manner to achieve both the WLAN frequency band. The bandwidths of 341MHz and 414MHz are achieved having a resonant frequency of 2.37GHz and 5.45GHz respectively. This antenna is printed on the glass epoxy (FR4 lossy) of dielectric substrate …
Published in Journal of Communication Engineering & Systems · Vol. 6, Issue 3, 2016 · pp. 1–6 Read article
-
Fusion of CT and MRI Scanned Medical Images Using Image Processing
Abstract: ABSTRACTIn the field of medicine, to evaluate or to examine the inner body parts, different radiometric scanning techniques can be used. Some most commonly used scanning techniques include the computerized tomography (CT) scan and magnetic resonance imaging (MRI) scan but the images of various body parts taken by using these scanning techniques have their own merits and demerits. MRI scans can show the images of soft tissues very clearly but …
Published in Journal of Computer Technology & Applications · Vol. 3, Issue 3, 2012 · pp. 17–20 Read article
-
CPW feed Flexible Antenna for Wireless Applications
Abstract: Flexible Microstrip CPW Feed Antenna using flexible FR-4 substrate is analyzed and presented over here. The Copper is used as conductive material for patch and CPW feed respectively. The performance in terms of return loss, gain, VSWR and radiation pattern is evaluated. The impedance bandwidth and gain of flexible antenna is 20.25% (2.179 GHz-2.665 GHz), 21.44% (3.232 GHz-4.026 GHz) and 1.4 dBi, 0.009 dBi respectively. The flexible property of the …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 6, Issue 3, 2018 · pp. 18–24 Read article
-
Value of Antenatal Diagnosis and Outcome in Dandy-Walker Malformation
Abstract: Dandy-Walker malformation is a rare congenital brain malformation characterized by hypoplasia and upward rotation of the cerebellar vermis, cystic dilation of the 4th ventricle and enlargement of the posterior fossa. Ultrasonography of the central nervous system is an integral part of a prenatal scan, and the development of imaging technologies have led to better diagnostic possibilities. Here, we present an antenatal diagnosis of a case of Dandy-Walker malformation at 40 …
Published in Journal of Nursing Science & Practice · Vol. 5, Issue 2, 2015 · pp. 37–41 Read article
-
Medical Healthcare Applications
Abstract: Medical imaging may be a heatedly contested field wherever winning merchandise maximize healthcare price by providing the simplest pictures within the shortest quantity of your time to assure correct designation and treatment for patients whereas maximizing the potency of workers and facilities. The advancement of medical imaging has resulted in terribly giant knowledge sets and progressively advanced algorithms golf stroke ever-growing demands on process power and gap plenty of opportunities …
Published in Research and Reviews: A Journal of Medicine · Vol. 9, Issue 3, 2019 · pp. 35–38 Read article
-
Analysis of Discrete Wavelet Transform for Denoising of Breast CT Image
Abstract: During acquisition of medical images noise gets induced in the digital image by various effects. The state of art devices used for capturing the images introduces complex type of addition noise in the images. No medical imaging devices are noise free. The most commonly used medical images are acquired from MRI (Magnetic Resonance Imaging), CT (Computed Tomography) and X-ray equipment’s. Additive noise into medical image decreases the visual quality that …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 7, Issue 1, 2018 · pp. 27–31 Read article
-
A Rare Cause of Parkinsonism—Manganese Toxicity
Abstract: A 43-year-old male presented with six months history of gradual onset and progressive bradykinesia, tremors of upper limbs and walking difficulty in the form of imbalance and short shuffling gait. He also had slurring of speech with hypophonia. Neurological examination revealed slow broken saccades, rigidity with cogwheeling, bradykinesia and short shuffling, festinant gait. He had action and postural tremors of upper limbs. Pull test was positive. Thus, a diagnosis of …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 9, Issue 1, 2019 · pp. 29–32 Read article
-
Cure Fraction Estimation for Traumatic Lumbar Puncture in Patients with Acute Lymphoblastic Leukemia
Abstract: The foremost aim of this research was to estimate the proportion of long-term survivors for traumatic and bloody lumbar puncture in patients suffering from acute lymphoblastic leukemia (ALL). To decide the resonance point of platelet for predicting traumatic event the receiver operating characteristics curve was used. Logistic regression and Cox proportional hazard regression was used to detect risk factors for the traumatic event and any relapse, respectively. To appraise the …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 7, Issue 3, 2018 · pp. 12–21 Read article
-
A Short Review on Breast Fibroadenomas
Abstract: Breast Fibroadenomas are the most common type of benign breast lumps found mainly in adolescent women. These are unilateral, smooth, demarcated, rubbery, mobile, and painless masses. They are believed to be formed by the influence of changes in the female reproductive hormone, estrogen and sometimes the combination of both estrogen and progesterone which mainly occurs at the time of puberty. Fibroadenomas are mostly found in women till the age of …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 11, Issue 2, 2022 · pp. 8–14 Read article
-
A Case of Low-Grade Fibromyxoid Sarcoma: A Rare Soft Tissue Sarcoma
Abstract: Sarcomas are heterogeneous group of tumours that can occur throughout the body. Approximately two third of soft tissue sarcomas (STS) arises in the extremities. These rare tumours accounts for less than 1% cancers in adults. Treatment algorithm for STS depends on tumour stage, site and histology. A 28-year-male patient presented with complaint of swelling over the right anterior aspect of leg since past six months. He had a history of …
Published in Research and Reviews : Journal of Surgery · Vol. 7, Issue 1, 2018 · pp. 1–4 Read article
-
Cystic Duct Adenocarcinoma: A Case Report and Review of Literature
Abstract: Cystic duct adenocarcinoma is a rare tumour arising from biliary epithelium. It may occur anywhere in the biliary tree. Many patients come in advanced stages, however surgical resection is the only chance offered for cure. A 35 year old female presented with obstructive jaundice along with intense itching all over body, at the surgical OPD. On examination gall bladder was palpable. Her USG abdomen and pelvis was suggestive of obstructive …
Published in Research and Reviews : Journal of Surgery · Vol. 4, Issue 1, 2015 · pp. 12–15 Read article
-
Potential Role of Unani Herbs in Management of Hypertensive Cardiomyopathy: A Review
Abstract: AbstractHypertensive cardiomyopathy (HTN-CM) is a structural heart disease associated with concentric left ventricular hypertrophy (LVH) along with systolic or diastolic dysfunction in primary hypertensive patients in the absence of other cardiac diseases causing myocardial hypertrophy or cardiac dysfunction. The structural and functional myocardial abnormalities due to persistent hypertension result in myocardial ischemia, fibrosis, and hypertrophy. HTN-CM is primarily a disease of impaired ventricular relaxation rather than impaired contractility; thus patients …
Published in Research & Reviews : A Journal of Unani, Siddha and Homeopathy · Vol. 7, Issue 1, 2020 · pp. 1–6 Read article
-
Electron beam irradiation studies of polyethylene maleic anhydride on their Chemical and Thermal properties.
Abstract: The electron beam (e-beam) irradiation effects on polyethylene maleic anhydride (MANPE) are investigated by spectroscopic and thermal methods. The MANPE irradiated with electron beam to a radiation dose of 30, 60 and 90 K Gy and the resultant changes in their chemical structure and thermal properties have been investigated by Electron spin resonance (ESR), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy …
Published in Journal of Polymer & Composites · Vol. 6, Issue 2, 2018 · pp. 17–30 Read article
-
Machine Learning Approach to Detect and Analyze Attention-Deficit/Hyperactivity Disorder
Abstract: Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by difficulties with attention, impulse control, behavioral regulation, and daily functioning that persist across childhood and adulthood. Clinical diagnosis is predominantly based on behavioral assessments and expert interpretation, which may result in subjectivity and delayed clinical decisions. To reduce reliance on subjective evaluation, this study introduces an automated ADHD identification framework that integrates resting-state functional Magnetic Resonance Imaging (rs-fMRI) with advanced machine …
Published in Research and Reviews: A Journal of Neuroscience · Vol. 16, Issue 2, 2026 · pp. 22–26 Read article