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1964 articles for “5” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Efficient Data Transmission through Fiber Optic Communication System using SOA
Abstract: AbstractThis paper represents the characteristic of Semiconductor Optical Amplifier (SOA) by varying frequency of Vertical Cavity Surface Emitting Laser (VCSEL) which is used as a source at the transmitter end and also injection current of SOA. It is observed that by varying the injection current up to 1 ampere, maximum output power of 0.74935 watt can be achieved at the frequency of VCSEL of 193.1 THz when the optical fiber …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 2, 2014 · pp. 27–32 Read article
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Performance Optimizing of a Simulated Model of a Fabry-Perot based Tunable Laser Operating at 1550 nm
Abstract: AbstractThe paper presents data for an optimized Fabry-Perot tunable laser, with a wavelength tuning range of 56.3 nm, with a high output power of 17.4307 dBm. Incentive for this research has been due to the cause that Fabry–Perot semiconductor laser diodes have been fine contenders as transmitters to be used in WDM optical networks. The proposed system is capable of modulating a maximum bit rate of 26.58 Gb/s, with an …
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 3, 2014 · pp. 23–31 Read article
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Optimization of Indium Concentration for Obtaining Enhanced Performance of 980nm InxGa1-xAs/GaAs MQW VCSELs
Abstract: AbstractIn this work, an optimization of Indium concentration of 980 nm InxGa1-xAs/GaAs MQW VCSELs is presented with the aim of improving dynamic performance of the VCSEL. An improved modulation performance is obtained by optimizing Indium concentration of x=0.2. A high modal gain and low transparency carrier density contributes to a high optical output power for In0.2Ga0.8As/GaAs MQW VCSEL. A highest modulation bandwidth of 11.625 GHz is obtained for In0.2Ga0.8As/GaAs MQW …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 2, 2013 · pp. 14–21 Read article
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Performance Analysis and Optimization of a 1550 nm MQW VCSEL by Varying Differential Gain and Injection Current
Abstract: AbstractIn this work, the performance characteristics of a 1550 nm top emitting multi quantum well (MQW) vertical cavity surface emitting laser (VCSEL) using AlGaInAs/InP are presented. Using this material the peak material gain is obtained as 1652.3 cm-1. A high performance designed VCSEL is obtained with the optimized value of differential gain and injection current. The optical output power of 31.37 dBm and the resonance frequency of 2.5 GHz are …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 3, 2013 · pp. 31–37 Read article
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A Case Study on Analysis of Road Safety concerns on a stretch of National Highway 12 in Rajasthan
Abstract: AbstractRoad safety is a growing social concern in the present day world. Rapid expansion in the road network and high motorization growth has led to serious impacts on road safety levels in India. The analysis of road accident data 2015 reveals that about 1,374 accidents and 400 deaths took place every day on Indian roads, which further converted into 57 accidents and loss of 17 lives on an average every …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 3, 2017 · pp. 1–7 Read article
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Influence of Polymer Additives on Physical Properties of Asphalt Concrete under Marshal, Flexure and Compressive Stresses
Abstract: AbstractThe polymer modified asphalt cement is used today to reduce early pavement distress and extend service life by enhancing adhesion, cohesion, and elasticity. This work studies the impact of polymer additives (SBS, LDPE, and rubber) to asphalt cement on the physical properties of asphalt concrete subjected to compression and flexure stresses, and Marshal volumetric properties. Asphalt concrete cylindrical specimens of 101.6 mm diameter and 127 mm height for compressive strength …
Published in Trends in Transport Engineering and Applications · Vol. 4, Issue 3, 2017 · pp. 8–17 Read article
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Flexural Behavior of Warm Mix Asphalt Concrete
Abstract: Research work on implementation of Warm Mix Asphalt (WMA) for roadway paving has been undertaken by many researchers due to its beneficial impact on the environment and reduction in the fuel consumption. In this investigation, two WMA mixtures have been prepared in the laboratory using medium curing cutback (MC-30) and Cationic emulsion. Hot mix asphalt (HMA ) mixture was also prepared for comparison. Beam specimens of (380 mm) in length, …
Published in Trends in Transport Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 10–20 Read article
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Studies on Polymer Modified Bitumen with various Fiber Impregnation
Abstract: Transportation sector is showing immense growth in the recent decades, modern vehicles introduced require a more stable platform to run better. In terms of road construction, we are not yet reaching the modernized standards adopted by other countries and usage of modern and innovative road construction materials are yet to be used in transportation infrastructure sector. The available roads are also getting damaged due to improper maintenance of top layer …
Published in Trends in Transport Engineering and Applications · Vol. 1, Issue 3, 2014 · pp. 19–24 Read article
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Implementation of Image Processing Technique to Assess the Surface Free Energy of Asphalt Binder
Abstract: The adhesive properties of asphalt binder are considered as a major issue in the durability of the pavement. When asphalt cement does not match the standard specification required for paving work, one of the existing remedy processes is to implement modifiers to enhance the quality. Image processing technique can detect the variation in the adhesive properties through the assessment of surface free energy of the binder. In the present assessment, …
Published in Trends in Transport Engineering and Applications · Vol. 9, Issue 1, 2022 Read article
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Evaluation of Biometric Technology for Class Control
Abstract: ABSTRACTThe productivity of a classroom has a direct correlation with students’ attendance and recording of its effectiveness. The current technology revolution oversees the gradual substitution of the age-old call method, bringing biometrics to the forefront. As a viable alternative to the traditional personal identification system, the concept of biometrics promises tremendous accuracy and speed as it automatically verifies or recognizes the identity of students. Locally, in a large class of …
Published in Current Trends in Information Technology · Vol. 2, Issue 1, 2012 · pp. 1–25 Read article
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Design of Triple Band Microstrip Yagi Uda Antenna
Abstract: Abstract A microstrip yagi uda antenna with triple band is proposed in this paper. The design antenna consists of CPW feeding in which the ground plane and the yagi antenna are on the same plane. The resonating frequency of design antenna is 6.29, 7.97 and 9.26 GHz. The antenna had achieved the directivity of 5.232, 5.704 and 6.062 dBi. The impedance of antenna is completely matched at all the three …
Published in Current Trends in Information Technology · Vol. 3, Issue 2, 2013 · pp. 7–10 Read article
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Designing an Energy Efficient Induction Motor: Advanced Computational Intelligence Technique
Abstract: Abstract—This paper presents an advanced computational intelligence technique (CIT), modified particle swarm optimization (MPSO) for designing energy efficient three-phase induction motor (DEEIM) including active power loss effect. PSO performs well for small dimensional and less complicated problems but fails to locate global minima for complex multi-minima functions. Even if PSO algorithm is easy to implement and has been shown to perform well on various power system optimization problems, they may …
Published in Current Trends in Information Technology · Vol. 9, Issue 2, 2019 · pp. 5–13 Read article
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Collaboration Research on IEEE Publications Field of Computer Science in India with Other Countries
Abstract: This article work attempts to evaluate the IEEE publications field of computer science in India with others’ collaboration based on research indexed in the Web of Science (WoS) online database for 12-years during the period from 2010 to 2021. A total of Indian 63,793 research publication, and 1,83,803 citations with 108 h-index were received. Of which, a maximum of 9,708 (15.22%) with 26,122 (14.21%) citations received research publications are contributed …
Published in Current Trends in Information Technology · Vol. 13, Issue 2, 2023 · pp. 29–37 Read article
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Investigations on PAPR Reduction using PTS Technique for OFDM Communication Systems
Abstract: AbstractOrthogonal Frequency Division Multiplexing (OFDM) is a spectral efficient technique for high data rate communication systems. It also provides robustness to multipath frequency selective fading but suffers from high peak-to-average power ratio (PAPR) and causes high power amplifiers to operate in the nonlinear region. In this paper partial transmit sequence (PTS) as PAPR reduction technique has been investigated. Mathematical modelling and Matlab simulation have been carried out to analyse its …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 19–26 Read article
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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
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A CPW Feed Compact UWB Antenna with Five Band Notches
Abstract: AbstractA novel small CPW feed UWB antenna with five notch bands is projected to suppress the potential interferences in ultra-wideband systems. This projected antenna has a small dimension of 30x32x1.6 mm3 and an operating bandwidth (VSWR<2) from 2.8 to 11.6 GHz. By introducing five U-shaped slots, five notches are achieved in WiMAX (3.1–4 GHz), WLAN (5–5.4 GHz and 5.7–5.9 GHz), X-band downlink (7.2–7.75 GHz), and ITU service band (8–8.4 GHz). …
Published in Journal of Communication Engineering & Systems · Vol. 7, Issue 2, 2017 · pp. 27–33 Read article
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Bandwidth Extension of Speech Signal Artificially & Transmission & Coding for Wireless Communication
Abstract: AbstractIn today’s next generation wireless communication, decoded speech quality at recipient side initiate quiet and slim; mainly recognized to intrinsic band limitation (300-3400 Hz). so as to increase clearness and genuineness of improved speech signal. Narrowband speech coders be supposed to promote to wideband coders supports bandwidth of 50-7000Hz. extensive time duration has been left for advancement from narrowband to fully wideband well-suited systems. Many smart devices at the present …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 111–116 Read article
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Empirical Method of Designing a Coaxial Line
Abstract: AbstractThis paper is meant to give a concise and correct method to design a coaxial cable using standard design formula. Simulation is done using empirical methods designing of coaxial transmission line. The coax is designed with a cut-off frequency of 1 GHz in TEM mode. The characteristic impedance of the coax is 50Ω. The aim here is to help the reader design a correct coaxial cable at the port of …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 8, Issue 3, 2020 · pp. 33–36 Read article
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Postprandial Elevation of Body Temperature – A Diagnostic Tool for Diq (Tuberculosis)
Abstract: AbstractDiq (tuberculosis) is one of the oldest diseases. The writings from different civilizations represent its clues. The man has been striving to know, to identify, to diagnose, to cure, to prevent and to eradicate this emaciating disease. All renowned Unani physicians have paid due attention towards the description of this disease. They are of the opinion that Diq is a condition in which Hararat Ghair Tabayee (abnormal heat) is associated …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 2, Issue 2, 2013 · pp. 37–44 Read article
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Use and Perceived Effectiveness of Complementary and Alternative Medicine (CAM) among COVID-19 Survivors in UT Chandigarh
Abstract: Objectives: China originated virus popular as COVID-19 has threatened the current healthcare system of the world. Due to unavailability of its definitive treatment, alternate treatment practices like Complementary and Alternative Medicine (CAM) are being considered for management. The present study aimed to assess the use and perceived effectiveness of complementary and alternative medicine (CAM) among COVID-19 survivors. Methods: The study was conducted on the employees of selected 15 government banks …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 12, Issue 1, 2023 · pp. 25–36 Read article