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209 articles for “periodic structures”
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Effect of 2D-EBG Structure on Monopole Antenna Radiation and Analysis of Its Characteristics
Abstract: In this paper, we present a two dimensional electromagnetic (2D-EBG) square shaped mushroom structure placed between two monopole antennas. Two artificial properties of this 2D-EBG structure such as PMC and Band Reject Region are investigated here. The radiation characteristics of a monopole antenna over this, 2D-EBG structure is tested by considering two cases. In the first case monopole antenna is made to operate within band rejection region where as in …
Published in Journal of Microwave Engineering and Technologies · Vol. 2, Issue 2, 2015 · pp. 1–4 Read article
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Optimization of reflectance based on SAG Structure using Plane Wave Expansion
Abstract: For future filter applications, we examine the silicon-based ternary grating SAG (silicon on air on glass) structure. Grating is accomplished by a one-dimensional grating structure composed of ternary periodic structure, where ternary period is realized by combining silicon-air-silicon dioxide layers. The plane wave expansion method (PWE) is utilized to mimic the reflections from such periodic structures. The simulation outcome divulges that the number of layers in the periodic structures have …
Published in Journal of Microcontroller Engineering and Applications · Vol. 9, Issue 1, 2022 · pp. 40–45 Read article
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Deploying Optimal Number of Sensors and Damage Detection in Structural Health Monitoring Using SEM-GA Method
Abstract: Detecting damages is the most important criterion in any engineering creation—be it a machine or a building. Among the engineering creation, civil engineering structures need a continuous monitoring to check their operations, performance and the health status of the structures. Damage detection cannot be done manually every time. Automated systems have to be developed in order to monitor the health of the structure periodically. Hence, structural health monitoring (SHM) aims …
Published in Current Trends in Signal Processing · Vol. 6, Issue 2, 2016 · pp. 28–35 Read article
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Overview of the Relationship of Chemical Behavior to Electron Structure of Group VII Elements in the Periodic Table
Abstract: This article examines the intriguing relationship between the chemical properties and electron configurations of Group VII elements, known as halogens: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At), which are located in the periodic table. These elements possess a common electron arrangement characterized by seven electrons in their outermost energy level. This shared arrangement is fundamental to their unique reactivity patterns. As one moves down the group, …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 2, 2025 · pp. 43–58 Read article
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Materials used in Periodontal Therapy for the Treatment of Intra-bony Defects
Abstract: Periodontitis is a condition that affects the supporting structures of a tooth, such as the gingiva, cementum, periodontal ligament, and alveolar bone. Periodontitis is widespread in the American population, although most of the cases are mild to moderate in severity and are treatable by minimally invasive procedures. Intra-bony defects, which develop as manifestation of some periodontal diseases, are treated by regenerative therapy with bone grafts that initiate or facilitate the …
Published in Research and Reviews: A Journal of Dentistry · Vol. 10, Issue 3, 2019 · pp. 7–13 Read article
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Endodontic Considerations: Physiology of the Accessory Canals of the Dental Pulp
Abstract: Access to endodontic therapy by the general population is often limited by the high expense of these procedures (i.e., sometimes requiring the expertise of a dental specialist in Endodontics). The segments of the endodontic apparatus (i.e., periapical complex, accessory canals, and root canal space) with their unique qualities as to spacial relationships, composition of microbial flora, immunological considerations, and host factors, function together leading to the success of initial endodontic …
Published in Research and Reviews: A Journal of Dentistry · Vol. 7, Issue 2, 2016 · pp. 45–49 Read article
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Seismic Hazard Evaluation through Attenuation Law Derivation and Response Spectrum Design: Bangladesh Case Study
Abstract: Bangladesh, positioned at the confluence of the Indian, Eurasian, and Burma tectonic plates, faces significant seismic hazards due to its complex geological setting. This research focuses on formulating empirical attenuation relationships and Creating a design response spectrum for assessing seismic risks in Bangladesh, using data from ten large earthquakes with magnitudes ranging from 6. 7 to 7. 9. The study creates Ground Motion Prediction Equations (GMPEs) for various structural periods …
Published in Journal of Structural Engineering and Management · Vol. 12, Issue 3, 2025 · pp. 54–63 Read article
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Comparative Study of Seismic Performance of Conventional Tube Structures and Diagrid Structure
Abstract: AbstractConstruction of tall building is rapidly increasing throughout the world. Advances in construction technology, structural systems, analysis and design software facilitated the growth of the buildings. Recently, the diagrid structural system has been widely used for tall buildings due to the structural efficiency and aesthetic potential provided by the unique geometric configuration of the system. The “diagrid” is a combination of the two words i.e. diagonal and grid which form …
Published in Journal of Structural Engineering and Management · Vol. 5, Issue 1, 2018 · pp. 32–38 Read article
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Comparative Analysis of using Rubber isolator and Friction isolator in G+8 Building by SAP 2000
Abstract: Base isolation technique has become most popular that improves resistant quality during a seismic earthquake. These bases seclude moves under high pressure and they soak up an earth tremor smash by minimizing oscillating and trembling of ground. Adaptive base solitude system includes the separation system is Lead Rubber Bearing, Friction Isolators, channel Method, Laminated Rubber Bearing. Base separation is the broadly accepted seismic protected skeleton employed in any edifice in …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 479–487 Read article
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Performance Based Seismic Evaluation of G+12 RCC Structures in Seismic Zone IV with and without Corner Shear Walls Considering Soil Types I, II, and III
Abstract: Seismic behavior of multi-storey buildings is significantly influenced by structural stiffness and supporting soil conditions. This study investigates the seismic response of a G+12 reinforced concrete building by comparing two structural configurations, namely buildings with shear walls and buildings without shear walls, under three soil conditions: Type I, Type II, and Type III soils. The analysis is carried out using the response spectrum method in accordance with IS 1893 (Part …
Published in Recent Trends in Civil Engineering & Technology · Vol. 16, Issue 2, 2026 · pp. 1–14 Read article
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Analysis of G+6 Diagrid building to Rectangular building
Abstract: Now a days the various types of building are used in our growing area like conventional building, tall building and diagrid building. But with demanding of building structures are also leads to demand of heavy structure durability and their strength. So this is very important to design building very effectively and durable. The diagrid elements in building is give strengthen to our building. And in present scenario this is very …
Published in Journal of Structural Engineering and Management · Vol. 9, Issue 1, 2022 · pp. 17–25 Read article
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Ascendancy of connecting assymmetrical r.c. towers using sky bridges in improving the dynamic response
Abstract: Structures constructed to serve similar purposes adjacently, are often connected to each other. These connections may be sometimes in the form of sky-bridges. Connecting the structures with each other does not cause any modification in the behaviour of the structures in the static condition, but such modification may cause huge effects on the structural behaviour under dynamically activated condition. This article basically deals with study of connected structures, when connected …
Published in Recent Trends in Civil Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 1–12 Read article
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Second Generation Platelet Rich Concentrates and Their Role in Periodontal Therapy: A Review
Abstract: Periodontal tissue regeneration has always been a challenge for the periodontists. Regeneration of lost tooth supporting structure by periodontitis is a primary goal of periodontal therapy. Platelet rich blood derivatives have been widely used in the field of dentistry. In recent years, platelet rich blood derivatives have gained more attention in periodontal regeneration. Platelet rich blood derivative which include platelet-rich plasma (PRP), platelet-rich fibrin (PRF), platelet-derived growth factors (PDGF), have …
Published in Research and Reviews: A Journal of Dentistry · Vol. 10, Issue 1, 2019 · pp. 24–30 Read article
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Metamaterial-Based Thermal Shielding Structures for Reusable Hypersonic Space Transportation Systems
Abstract: The rapid development of reusable hypersonic space transportation systems has intensified the need for advanced thermal protection technologies capable of withstanding extreme aerodynamic heating conditions encountered during atmospheric re-entry and sustained hypersonic flight. Conventional thermal shielding materials often suffer from high structural weight, limited adaptability, thermal fatigue, and degradation under repeated thermal cycling. This study proposes a novel Metamaterial-Based Thermal Shielding Structure for Reusable Hypersonic Space Transportation Systems, integrating engineered …
Published in Journal of Aerospace Engineering & Technology · Vol. 16, Issue 2, 2026 Read article
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Non-linear Photonic Crystals and their Applications: A Review
Abstract: The nonlinear photonic crystals (NLPCs) are periodic material structures in which nonlinear materials are used for photonic structure formation. In nonlinear photonic crystals, the optical response mainly depends on the intensity of the light beam that propagates through the photonic crystal. These structures show new optical properties with improved or enhanced or new functionalities that cannot be observed in linear photonic crystals. In addition to this, using nonlinear materials in …
Published in Trends in Opto-electro & Optical Communication · Vol. 12, Issue 2, 2022 · pp. 36–39 Read article
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Erthquake Response of Shear Wall Integrated Step-Back Set-Back Structures on Sloped Ground
Abstract: The study examines how well step-back set-back structures perform seismically when they are resting on a 27° slope in terms of base shear, maximum story displacement, story drift, and time period. Shear walls 200 mm thick are positioned at various points. The seismic performance of the square plan structure having shear wall at corner locations is presented in this study. The study's findings indicate that the shear wall's position affects …
Published in Journal of Geotechnical Engineering · Vol. 11, Issue 2, 2024 · pp. 22–31 Read article
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A Comparative Seismic Assessment of Structures Utilizing Various Angles: Shear Walls vs. Diagrid Structural Systems
Abstract: The diagrid structural system has emerged as a cutting-edge approach to designing tall buildings in recent times. It represents a significant innovation in the construction industry, combining both structural strength and striking architectural aesthetics. The versatility of the diagrid system has led to its widespread adoption in the construction of tall buildings. In-depth research into the design methodology of diagrid structures has unveiled their exceptional structural capabilities and distinctive architectural …
Published in Journal of Structural Engineering and Management · Vol. 10, Issue 2, 2023 · pp. 23–30 Read article
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Experimental Investigation of Effect of Soil Structure Interaction on Buildings
Abstract: In the conventional analysis and design, buildings are generally considered to be fixed at their bases, but in actual practice, the support condition depends on the type of soil on which it is founded. The flexibility of the soil medium allows the movement of soil and foundation, which decreases in the overall stiffness of building frames and results in a subsequent increase in natural periods of the system. Thus, the …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 3, 2019 · pp. 32–45 Read article
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Ayurveda and Periodontal Disease: A Review
Abstract: Periodontal disease is inflammation of the surrounding structures of teeth. Prevalence of periodontal disease is significantly high in India. Modern dentistry suggests various measures to treat it. But because of being expensiveness of treatment and unavailability of trained dental professionals, especially in rural India, prevalence of periodontal disease is increasing day by day. Indian traditional medicine, ‘Ayurveda’ too suggest various treatment modalities which are inexpensive, effective and readily available even …
Published in Research and Reviews: A Journal of Dentistry · Vol. 3, Issue 3, 2012 · pp. 1–6 Read article
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Investigating the Quality of Online Education from University-level Students’ Perspective in Bangladesh
Abstract: Coronavirus disease has disrupted the global education system in the year 2020. An online teaching platform was the only alternative to the face-to-face classroom teaching to continue educational activities. The main purpose of the study was to assess the quality of online education from the perceptive of university-level students in Bangladesh. The research found that the class materials, the interaction between teacher and students, interaction among students, technical support availability …
Published in Research & Reviews : Journal of Statistics Read article