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893 articles for “SR”
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New Analytical Expression of OPRA Over InverseGamma Shadowed Fading Channel with Selection Combining Diversity
Abstract: Abstract: Considering wireless communications, different factors are responsible for attenuation and degradation of signal which is term as fading. Generally fading is divided into two parts large scale fading and small scale fading. It is very essential to develop a fading model that characterizes the channel considering that effects. In this paper analysis of channel capacity under Optimal Power Rate Adaption (OPRA) over Inverse-Gamma shadowed distribution with Selection Combining diversity …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 1, 2019 · pp. 18–21 Read article
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A Novel Closed form Expression of OPRA Over κ-μ/Inverse-Gaussian and η-μ/Inverse-Gaussian Fading Channel with Diversity Reception
Abstract: Abstract: In authentic wireless propagation scenario, the execution of the wireless communication is critically degraded by fading phenomenon which is generally multipath and shadowing. Considering more realistic scenario it is very necessary to develop a composite fading model and further analyze its performance metrics. In this work closed form equation of channel capacity under adjustable transmission policy with OPRA over κ-μ/Inverse-Gaussian and ημ/Inverse-Gaussian fading channel with and without maximal ratio …
Published in Journal of Microelectronics and Solid State Devices · Vol. 6, Issue 1, 2019 · pp. 7–11 Read article
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A Review on Waste Heat Recovery Processes and a Proposed Scheme for Commercial Establishments
Abstract: AbstractWhen the matter of harvesting waste heat is considered, the major questions that arise are the amount of waste heat generated and the efficiency of conversion of the same into useful energy. This paper reviews recent research on waste heat recovery and also proposes an idea of how we can harness waste heat from commercial establishments using Thermopiles / Thermoelectric Generators and use that electrical energy for low power loads. …
Published in Journal of Nuclear Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 1–8 Read article
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Effect of Fillers on Electrical Conductivity of Epoxy Composites
Abstract: AbstractThis paper reports, electrical conductivity studies carried out on RT cure epoxy resin (LY556+HY951) containing three different particulate fillers graphite (Gr) a soft material, silicon carbide (SiC) a hard material and a hybrid graphite and silicon carbide (Gr-SiC). The weight fractions of three different fillers were varied from 10% to 40 wt% in steps of 10%. Increased filler fraction increases the electrical conductivity of epoxy composites for all the three …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 25–30 Read article
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An Overview on Carbon Fibre Reinforced Polypropylene
Abstract: AbstractThis review article describes the methods of fabrication of composites using carbon fibre and polypropylene and improving the mechanical properties of composites. Recycled carbon fibre/polypropylene (reCF/PP) wrap-spun yarns were compared to the virgin carbon fibre. The aim is to enhance the tensile properties of the CFRPP/SRPP intralayer hybrid composites under tensile stresses; observations of different kinds of weave patterns and layups are resulted. Keywords: Recycled carbon fibre, polypropylene, carbon fibre …
Published in Journal of Polymer & Composites · Vol. 5, Issue 2, 2017 · pp. 12–17 Read article
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Characterization and Gamma Irradiated MA-EMA Copolymer by ESR and FTIR Techniques
Abstract: AbstractGamma irradiation effect of methacrylamide-ethyl methacrylate (MA-EMA) copolymer has been investigated by electron spin resonance (ESR) and Fourier Transform infrared (FTIR) spectroscopic techniques. The ESR spectrum observed for gamma irradiated MA-EMA copolymer has shown resolved hyperfine (hf) pattern at lower temperatures (77K) while at higher temperatures the spectrum is appeared to be broadened. Fourier Transform Infrared spectra of pure and gamma irradiated MA-EMA copolymer have been recorded for the copolymer …
Published in Journal of Polymer & Composites · Vol. 4, Issue 3, 2016 · pp. 40–44 Read article
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Dielectric Responses of Hybrid Polymer Matrix Composites at 2–3 GHz Microwave Frequencies
Abstract: AbstractMeasurement of dielectric properties of polymeric materials in the 2–3 GHz frequency region is very important for strategic applications such as communication electronics, rapid prototyping, and radiation assisted heating. As per international standards for industrial, scientific and medical applications (ISM) 0.9, 2.45 and 5.8 GHz microwaves can be used both for heating and communication purposes, of this 2.45 GHz is most widely used frequency, hence it is important to characterize …
Published in Journal of Polymer & Composites · Vol. 3, Issue 1, 2015 · pp. 1–11 Read article
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Fault Tolerant Inverter for BLDC Drives
Abstract: In this study, fault tolerant inverter for BLDC drives is used for aerospace application. In such application, the human intervention is limited. So, the fault tolerant control of BLDC motor is of great importance for its continuous operating capacity even under the faulty situation. Over voltage and over current phenomenon occur in system due to switching faults, so a fault isolation and system reconfiguration method is presented. This method can …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 3, 2018 · pp. 31–38 Read article
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Emerging Trends in Applications of Semiconductor Alloys in Wireless Communications
Abstract: AbstractArsenide semiconductor alloys provide a natural means of tuning the magnitude of the forbidden gap and other material parameters so as to optimise and widen the application of semiconductor devices. With the advent of small-structure systems, for instance quantum wells and superlattices, the special effects of alloy composition, size, device geometry, doping and controlled lattice strain can be collective to accomplish maximum tunability. In this article, the concepts and ideas …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 1, 2016 · pp. 31–41 Read article
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Analysis of Wireless Tactical Network (WTN)
Abstract: AbstractIn the present paper the goal of the WTN program was to develop an adaptive networking capability that dramatically improved performance and reduced communication failures in complex communication networks. The past decades have witnessed advances in computing and communication technologies. Faster, smaller and more reliable devices enable communications with rapid, efficient information dissemination between mobile. These advantages are on demand setup, fault tolerance, node’s increased mobility, self-organizing connectivity, adaptive, scalable …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 6, Issue 3, 2019 · pp. 31–37 Read article
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Smart Garbage Management System for Hygienic and Healthy Environment
Abstract: AbstractIn metropolitan cities, garbage management is serious problem. It is not possible to check each place where the garbage dump yard is full or not. In many places, even though dustbins are filled, authorities are not cleaning them due to lack of information. As a result, harmful gases are evolved causing illness to human beings and animals. To avoid these problems, a system for monitoring Garbage is designed. Sensors are …
Published in Recent Trends in Sensor Research & Technology · Vol. 6, Issue 2, 2019 · pp. 21–27 Read article
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Smart Wireless Door Lock System based on GSM Technology
Abstract: AbstractThe project idea was to build a knock detecting door lock which can identify the specific knocking pattern and unlock the door if the pattern is correct. This door locking system provides much security than systems which are currently using. When there are many users who use the door, problems may occur because there is only one key to open the door. But here in this door locking system this …
Published in Recent Trends in Sensor Research & Technology · Vol. 7, Issue 1, 2020 · pp. 10–15 Read article
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Comparison Study of Longitudinal Rectangular and Helical Fins in the Annulus Side of Double Pipe Heat Exchanger
Abstract: A comparison of experimental study is made between the enhancement of heat transfer in the horizontal double pipes with helical fins and longitudinal rectangular fins in the annulus side. The material is copper with inner tube internal diameter 10 mm, inner tube thickness 1 mm, outer tube external diameter 40 mm, outer tube thickness 1.5 mm, pitch length of 50, 75 and 100 mm, heat exchanger length 1100 mm for …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 29–35 Read article
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Optical Characteristics of Amorphous Se-Ge-Ag Thin Films
Abstract: AbstractDetailed studies on impurity dependence of the optical structural properties have been carried out on Se-Ge-Ag thin film samples prepared by thermal evaporation technique. The effect of the addition of varying amounts of silver in concentrations from 5 to 15 molar percent to Se-Ge system were analyzed systematically under the room temperature. The optical transmission and reflection spectra of these films were measured in the range of 300–900 nm. The …
Published in Trends in Opto-electro & Optical Communication · Vol. 6, Issue 3, 2016 · pp. 33–38 Read article
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IoT Protocol for Hybrid Hub-Node Topology
Abstract: AbstractCommunication between two or more smart devices can be established using various topologies and protocols like wifi, bluetooth, zigbee, LoRAWAN, Sigfox, etc. All these protocols have a limitation, no device can talk to other directly or in other words (M2M) or broadcast, it should always have a hub or gateway through which it can connect. This paper will provide an overview on the protocol that is engineered to allow devices …
Published in Current Trends in Information Technology · Vol. 7, Issue 3, 2017 · pp. 36–41 Read article
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Cost-Effective Smart Home Automation using Internet of Things
Abstract: AbstractA smart home is a concept of connected inside and outside home services using a network with the help of smart devices. These smart devices can share information enabling proper control and management over the home through network integrations. Portable Internet of Things (IoT) Board is a system that uses smartphones for controlling essential home functions and features of the internet from anywhere around the world remotely. This paper suggests …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 1–6 Read article
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Wearable Navigation for Blind People
Abstract: ABSTRACT- To help the visually impaired and blind people walk to the destination efficiently and safely in indoor & outdoor environment, a wearable navigation device is developed in this project. The main components of the system are a microcontroller, various sensor, IOT modules. The locating, way-finding, route following and obstacle avoiding modules are the essential components in a navigation system. A set of sensors used to track the path and …
Published in Journal of Computer Technology & Applications · Vol. 10, Issue 2, 2019 · pp. 10–17 Read article
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Inpainting an Image based on Enhanced Resolution
Abstract: AbstractInpainting is the measure of reconstructing damaged parts of images. The main goal of inpainting is to remove unwanted objects from images and fill this region with the background. At first a part of the input image is inpainted by a non-parametric patch sampling. The inpainted part of the input image allows reducing the computational complexity and less sensitive to noise. The advantage is it is easier to inpaint low …
Published in Journal of Computer Technology & Applications · Vol. 6, Issue 1, 2015 · pp. 23–26 Read article
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Detection of Fake Request and Response using Certificates Information and IP Address of SDN
Abstract: Data communication in network facilitates access of the content stored at the remote servers using the IP address. In SDN (software-defined networking), these communications are monitored centrally to be out in network operation. The attackers can change the IP address and block the communication to authenticate services or certified IP address authorities generate security certificate to the remote servers. Attackers are also able to modify the host address of the …
Published in Journal Of Network security · Vol. 8, Issue 1, 2020 · pp. 1–10 Read article
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Role of Sarvanga Takradhara with Siddarthak Kwatha in Psoriasis: A Review
Abstract: Psoriasis is a chronic, non-infectious, inflammatory and an auto-immune disorder characterized by sharply demarcated erythematous plaques with mica like silvery scales. It occurs primarily on elbow, knee, and scalp and by chronic fluctuating course. It not only ruins the quality of life of afflicted individuals but also has substantial psychological and social impact on patient’s life, as the appearance of patient may be embarrassing. In Ayurveda, all skin diseases have …
Published in Research and Reviews : A Journal of Ayurvedic Science, Yoga and Naturopathy · Vol. 6, Issue 3, 2019 · pp. 31–37 Read article