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899 articles for “M-shape”
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Experimental Investigation of Surface Modification on Copper (Cu) with Pen-Shaped Plasma Torch
Abstract: The paper presents an experimental investigation on surface modification of copper (Cu) material by plasma treatment using pen-shaped plasma torch. Plasma is used for a variety of industrial applications like surface modifications, surface activation, and surface treatment for coating technology. The plasma device construction here is simple and effective. This development was required because available device is not useful for practical applications due to limited effective surface treating area. In …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 40–47 Read article
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Comparative Study of Structure-from-Motion Algorithms 3D Shape Reconstruction
Abstract: 3D shape reconstruction from multiview photographs and video sequences (2D images) is an active area of research. Existing face recognition systems are based on 2D facial images and exhibit well-known deficiencies. Accordingly, the face recognition research is gradually shifting from classical 2D to sophisticated 3D or hybrid 2D/3D. Currently the 3D reconstruction algorithms may be grouped in to four categories. These are shape-from-X, 3D morphable model (3DMM), structure from motion …
Published in Current Trends in Signal Processing · Vol. 6, Issue 1, 2016 · pp. 1–10 Read article
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Rectangular Micro Strip Patch Antenna Interconnected with Symmetrical Cut Hexagonal Shaped between Horizontal Lines Meta Material Structure Enhancement Bandwidth at 1.80 GHz
Abstract: This paper proposes a new generation of antenna that applies Metamaterial (MTM) properties at ground plane. The paper analyzes the performance of Microstrip Patch Antenna with and without using the MTM structure. Rectangular Microstrip Patch Antenna (RMPA) interconnected with symmetrical cut hexagonal shaped between horizontal lines MTM structure is proposed for enhancement of bandwidth and reduction of return loss at operating frequency of 1.80 GHz. The proposed antenna is designed …
Published in Journal of Microwave Engineering and Technologies · Vol. 1, Issue 3, 2014 · pp. 15–20 Read article
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Two Port Ring Shaped DRA Based MIMO (Multiple Input Multiple Output) Antenna for WLAN Application
Abstract: This paper presents multiple input and multiple output (MIMO) antenna which is based on dielectric resonator with very good isolation. This antenna consists of two hybrid resonator and is fed by microstrip feedline through H-Shaped aperture is cut in ground plane just below the Ring DR. Area of this antenna is 40x50 mm². Impedance bandwidth (S11<-10dB) of this antenna is 5.15 to 6.15 GHz. The radiation efficiency and total gain …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 1, 2019 · pp. 17–24 Read article
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Wi-Fi Shaped Quad-band Microstrip Antenna for RF Energy Harvesting Applications
Abstract: AbstractIn this paper, author proposed a Wi-Fi shaped microstrip antenna for the RF energy harvesting applications. The proposed antenna is operating at the frequencies 0.9, 1.7, 1.9 & 2.4 GHz. The antenna radiates at the quad-band frequency having an application in GSM Band and Wi-Fi Bands. The antenna consists of four different strips which correspond to each frequency in the result. The co-axial probe is connected from the side of …
Published in Journal of Microwave Engineering and Technologies · Vol. 5, Issue 3, 2018 · pp. 11–19 Read article
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Characterizing Electromagnetic Behavior of X-Band Rectangular Waveguide with Convex and Concave Shaped Ridges Using Hp-Finite Element Method
Abstract: In this research study, we explore the behavior of electromagnetic waves as they propagate through ridge waveguides with convex and concave shapes, having both single and double walls. To analyze the waveguide's characteristics, we employ the highly accurate hp-finite element method (hp-FEM). The focus is on investigating the impact of these ridge deformations on cutoff frequencies and bandpass for TE10 and TE20 modes. To benchmark our findings, we compare the …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 1, 2023 · pp. 27–34 Read article
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Temperature-Dependent Viscoelastic Response of Magnetorheological Grease with Varying Particle Shapes
Abstract: This study examines the effect of temperatures on the magnetic and rheological properties of magnetorheological greases (MRGs) comprised of different particle shapes, under oscillatory shear mode test. Two samples were prepared with 70 wt.% flake-shaped electrolytic iron particles (EIP) and spherical carbonyl iron particles (CIP) which dispersed in 30 wt.% lithium-based grease, separately. Respective to magnetic properties test, the vibrating sample magnetometry (VSM) revealed that MRG-EIP exhibited 11.4% higher magnetic …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 139–147 Read article
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Comparative CFD Analysis of Major and Minor Aerodynamic Modifications for Tall Building Shapes under Wind Loading
Abstract: Aerodynamic performance of tall buildings is significant to structural safety and serviceability under wind. The major and minor aerodynamic changes of the tall building shape are compared with the computational fluid dynamics (CFD) simulation. The base model was a rectangle of 75 m × 75 m × 300 m. Various aerodynamic modifications of shapes were examined: circular, elliptical, tapered, twisted, rounded-corner, and chamfered-corner shapes. Simulations were carried out in the …
Published in Journal of Offshore Structure and Technology · Vol. 13, Issue 2, 2026 · pp. 9–35 Read article
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An Approach of Likelihood Ratio Score Fusion for Appearance and Shape based Face Recognition
Abstract: AbstractThis paper deals with an approach of likelihood ratio based score fusion technique where appearance and shape based facial features have been used to enhance the efficiency of existing face recognition system. Active Shape Model (ASM) has been used to extract the appearance and shape based facial features. Two different types of features have been used in this work in such a way that when the appearance based feature contains …
Published in Journal of Computer Technology & Applications · Vol. 4, Issue 3, 2013 · pp. 1–8 Read article
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Application of Smart Material Technology: A Review
Abstract: These days, smart materials are employed in every aspect of technology and human life. Much work is being done to explore their potential in different engineering applications that could benefit the average person. Shape memory alloys, piezoelectric materials, magneto rheological materials (MR), and electro rheological materials (ER) are just a few examples of the many diverse kinds of smart materials. The electric supply can be adjusted to change the viscosity …
Published in Trends in Mechanical Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 34–39 Read article
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Application of Smart Material Technology: A Review
Abstract: These days, smart materials are employed in every aspect of technology and human life. Much work is being done to explore their potential in different engineering applications that could benefit the average person. Shape memory alloys, piezoelectric materials, magneto rheological materials (MR), and electro rheological materials (ER) are just a few examples of the many diverse kinds of smart materials. The electric supply can be adjusted to change the viscosity …
Published in Trends in Mechanical Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 34–39 Read article
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Design and Analysis of Microstrip Band Stop Filter with Modified Circle and Dumbbell Shape Ground Structure
Abstract: In this proposed paper the performance of Band stop filter with modified ground structure is analyzed in this specific work; the modified ground structure includes a circle and dumbbell etched shapes in ground plane. Parameters of the proposed configuration were calculated at the cut off frequencies of f1=1 GHz, f2=1.62GHz and also proposed designs having substrate height of 1.6 mm, loss tangent of 0.02 and dielectric constant of 4.4. Results …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 26–31 Read article
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Design and Analysis of Microstrip Band Reject Filter with Modified Rectangular and Hexagonal Shape Ground Structure
Abstract: In this proposed paper, the performance of band stop filter with modified ground structure is examined; the modified ground structure includes four rectangular and a hexagonal etched shapes in ground plane. Parameters of the proposed design were calculated at the cut off frequencies of f1=1.16 GHz, f2=1.89 GHz and also proposed designs having substrate height of 1.6 mm, loss tangent of 0.02 and dielectric constant of 4.4. Results are calculated …
Published in Journal of Microwave Engineering and Technologies · Vol. 4, Issue 2, 2017 · pp. 1–5 Read article
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Maxillary Second Molar with two palatal root canals: a Case Report.
Abstract: Vagaries of endodontic configurations are frequent phenomenon in Clinical settings. Numerous variations are reported in Maxillary Second Molar like C-shaped canals, Second Mesiobuccal canal (MB2) and more than one palatal root and canal. A case is presented where Maxillary Second Molar is exhibiting two widely separated palatal roots with individual canals.
Published in Research and Reviews: A Journal of Dentistry · Vol. 13, Issue 1, 2022 · pp. 11–13 Read article
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Modular and Prefabricated Design: Shaping the Future of Interior Spaces
Abstract: This paper explores the emerging trend of modular and prefabricated design in the interior design industry, highlighting its potential to revolutionize the creation of residential and commercial spaces. The study examines the advantages of these approaches, including cost efficiency, sustainability, and design flexibility, while also addressing the challenges such as design constraints and regulatory hurdles. Through the analysis of contemporary projects and innovative case studies, the research demonstrates how modular …
Published in Research & Reviews : Journal of Statistics · Vol. 13, Issue 1, 2024 · pp. 12–19 Read article
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Broadband Rectangular Top Shaped Slotted Antenna at 2 GHz for WLAN Application
Abstract: The present study is regarding the design of a broadband rectangular top shaped slotted microstrip antenna with linear polarization radiation. The glass epoxy dielectric material is used for substrate and single rectangular microstrip radiating patch. Rectangular antenna is designed for WLAN technology. We first analyze the characteristics of microstrip antenna and design for the high bandwidth. The results show that the proposed antenna is able to achieve a bandwidth of …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 2, Issue 1, 2015 · pp. 1–4 Read article
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Quad-Band Notched Small Monopole Antenna with U-shaped Slots and SRRs for UWB Applications
Abstract: A quad-band notched small monopole antenna with U-shaped slots and SRRs for UWB applications is presented in this study. The quadruple band-notched characteristics can be achieved by embedding three U-shaped slots on the radiation patch and two split ring resonators (SRRs) near feed line, respectively. It has a tiny size, only 17 mm23 mm0.508 mm. The experimental and measured results demonstrate that the proposed antenna offers an impedance bandwidth across …
Published in Journal of Communication Engineering & Systems · Vol. 15, Issue 1, 2025 · pp. 21–31 Read article
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ZnO Nanostructure Shape Effects in Photocatalysis of Methylene Blue
Abstract: Nowadays, dyes are used in the food industry, textile industry, paper industry, hair coloring, light-harvesting arrays, photoelectrochemical cells, etc. Most of the dyes are nonbiodegradable, toxic, carcinogenic, and consist of organic compounds. These dye wastages are discharged into water bodies and the environment causing serious hazards to the marine ecosystem as well as the humans extensively. To treat toxic dyes traditional methods such as adsorption, activated carbon, ultrafiltration, and reverse …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 722–727 Read article
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Design and Implementation of UWB-MIMO Triangular Antenna with Notch Technology
Abstract: The paper proposes a quad-element UWB-MIMO triangular monopole antenna with triple notched bands and high isolation. The antenna comprises four triangular-shaped elements arranged orthogonally, printed on a low-cost FR-4 substrate with a dielectric constant of 4.4. Its dimensions are 50 × 50 × 1.6 mm³, and it operates within the frequency band of 2.97 to 11 GHz. To achieve high isolation of 22 dB between the four radiatingelements, a square …
Published in Journal of Microwave Engineering and Technologies · Vol. 10, Issue 3, 2023 · pp. 8–15 Read article
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Advances in Polymer-Based Orthodontic Materials for Enhanced Treatment Efficiency
Abstract: Polymers, particularly shape-memory polymers, fiber-reinforced composites, and elastomeric materials, provide enhanced mechanical properties such as flexibility, durability, and controlled force application, leading to improved treatment outcomes. These materials offer superior biocompatibility, reducing irritation and discomfort for patients while ensuring efficient and predictable tooth movement. It is important to note one of the key advancements in orthodontics is the use of shape-memory polymers, which can respond to temperature or external stimuli, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 1016–1024 Read article