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704 articles for “transmissivity”
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Smart Grid: The Future of the Intelligent Power Mechanism
Abstract: The improvement and implementation of a clever grid for electricity deliver is one of the urgent troubles in present day electricity economy, provide excessive country wide precedence and big investments, despite the fact that the whole problem continues to be in its infancy stage. The clever grid provides power from manufacturers to customers the usage of two-manner virtual technology, and permits manage of home equipment within side the customers' homes …
Published in Trends in Electrical Engineering · Vol. 12, Issue 2, 2022 · pp. 28–34 Read article
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A Literature Review on Electrical Nanogrids
Abstract: The unified power grid bears significant weight when shoppers expect a continuous dependable power supply, a decrease in fossil fuel by-products, expanded efficiency inside the public matrix, and power provided to distant networks. As assumptions increment, it turns into the assignment of force frameworks examination and plans to foster new constructions to satisfy these needs. This has prompted options being looked for incorporated power production, which is inclined to blackouts …
Published in Trends in Electrical Engineering · Vol. 12, Issue 3, 2022 · pp. 1–11 Read article
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Performance Comparison of FBG as Dispersion Compensator with Different Frequency Chirp in an Optical Fiber Link
Abstract: AbstractRecent day’s optical communication is a most popular technique for transmission of data. We share most of our data through optical network, but the main huddle in performance is dispersion. However, the compensation of dispersion by Dispersion Compensating Fiber (DCF) and Fiber Bragg Grating (FBG) can boost significantly the system. Our proposed work investigates and analyzes the performance of optical transmission system at 1550 nm using FBG as dispersion compensator. …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 3, 2018 · pp. 1–7 Read article
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Performance Analysis of EDFA Amplifier for Different Ion Density and Doping Radius
Abstract: AbstractIn communication sector, optical communication is playing a vital role since many years. Efficient transmission of data through optical fiber is one of the major concerns now days to the researchers. Several optical instruments are used to get efficient output after transmission. There are many kinds of optical amplifier. EDFA (Erbium Doped Fiber Amplifier) amplifier is one of the mostly used amplifiers in the recent optical communication system. This paper …
Published in Trends in Opto-electro & Optical Communication · Vol. 5, Issue 3, 2015 · pp. 16–32 Read article
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25 Gbps Downstream, 3 Gbps Upstream, 20 Km Reach PON Using Duobinary Modulation Based on Reflective-ONU Utilizing R-SOA for Remodulation
Abstract: AbstractThe paper demonstrates 3 Gbps upstream transmission, 25 Gbps of downstream transmission of a single channel PON over 20 Km utilizing the wavelength reuse scheme using R-SOA in the ONU. NRZ and duobinary modulation scheme is considered and compared and the duobinary modulation scheme is selected for its better performance.Keywords: Reflective semiconductor optical amplifier, Passive Optical Network (PON), duobinary modulation, fiber to the x (FTTx)
Published in Trends in Opto-electro & Optical Communication · Vol. 4, Issue 3, 2014 · pp. 1–7 Read article
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Performance Analysis of Free Space Optics with Optsim Simulator
Abstract: ABSTRACT Free space optics (FSO) is an expanding technology that is gaining acceptance in an increasing number of sectors of science and industry in tropical region, such as Malaysia. It provides an effective line of sight, wireless and high bandwidth communication between two points. However, FSO does have an uncontrolled drawback which is highly sensitive to atmospheric phenomena such as environmental temperature, rain, fog, smoke, and haze. Thus, the impact …
Published in Trends in Opto-electro & Optical Communication · Vol. 2, Issue 1, 2012 · pp. 28–34 Read article
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Performance Estimation of Link-Compensated DWDM RoF and FSO Based Hybrid Network
Abstract: The demand for data rate is increasing rapidly as well as the number of users is also increasing. So, to fulfill both demands and also taking care of necessary optical bandwidth. A dense wavelength division multiplexing (DWDM) technology-based 48 channels with 40Gbps data rate free-space optical (FSO) communication system using symmetrical compensation technique is designed. In this paper, an attempt is made to increase the link range of the transmission …
Published in Trends in Opto-electro & Optical Communication · Vol. 9, Issue 2, 2019 · pp. 9–13 Read article
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Bluetooth Based Wireless Digital Stethoscope with Mobile Integration
Abstract: AbstractAcoustic stethoscopes operate on the transmission of sound from the chest piece, via air-filled hollow tubes, to the listener's ears. In the stethoscope, the chest piece and the connecting cable are known to facilitate transmission of pathogens from patient to patient and from patient to the user. Replacing the connecting cable with a wireless system may help reduce the potential risk and further allow broadcasting of the signals to multi-user …
Published in Trends in Opto-electro & Optical Communication · Vol. 10, Issue 2, 2020 · pp. 1–4 Read article
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Comparison of Advance Data Modulation Formats in 4×10 Gbps WDM Optical Communication System using YDFA-EDFA and Raman-EDFA Hybrid Amplifiers
Abstract: In this paper, comparison of various advance data modulation formats in 4×10 Gbps wavelength division multiplexing (WDM) optical communication system using various hybrid optical amplifiers (YDFA-EDFA and Raman-EDFA) has been carried out. The advance modulation formats under study include non-return-to-zero (NRZ), return-to-zero (RZ), carrier-suppressed return-to-zero (CSRZ), Duobinary return-to-zero (DRZ) and modified Duobinary return-to-zero (MDRZ). The WDM hybrid system has been analyzed over 100 km fiber for 10 Gbps system. It …
Published in Current Trends in Information Technology · Vol. 10, Issue 1, 2020 · pp. 23–29 Read article
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EXPLORING BODY TO BODY COMMUNICATION USING HEALTH MONITOR APPLICATION
Abstract: The paper presents a Advanced technology of communication method called as body to body communication in biomedical field. Human body is used as a medium of transmission of data. The use of this technology in medical monitoring systems eliminates the complexity of existing technologies that involves cables wires for transmission of data. The proposed model provides a secure and simple communication system that consists of wearable devices to measure heart …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 1, 2018 · pp. 52–58 Read article
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Recent Advances of Distributed Optical Fiber Raman Amplifiers in Ultra Wide Wavelength Division Multiplexing Telecommunication Networks
Abstract: ABSTRACTRecently, many research works have been focused on the fiber optic devices for optical communication systems. One of the main interests is on the optical amplifiers to boost a weak signal in the communication systems. In order to overcome the limitations imposed by electrical regeneration, a means of optical amplification was sought. The competing technology emerged: the first was Raman amplification. One reason was that the optical pump powers required …
Published in Journal of Communication Engineering & Systems · Vol. 1, Issue 1-3, 2011 · pp. 44–59 Read article
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Block SLM Scheme for Efficient PAPR Reduction in OFDM Systems
Abstract: AbstractOrthogonal frequency division multiplexing (OFDM) is an attractive technique due to its high-speed data transmission and robustness for time-selective channels. However, the major drawback of OFDM system is high peak-to-average power ratio (PAPR). In this paper, two PAPR reduction schemes have been introduced; one is conventional selected mapping (SLM) scheme and a new proposed block selected mapping (BSLM) scheme to obtain PAPR reduction performance in OFDM system. In the proposed …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 3, 2013 · pp. 10–16 Read article
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Improvement of BER in Wavelet Transform-based OFDM System with Kalman Filter
Abstract: AbstractWe know that bandwidth is the most precious commodity in all communication systems such as 2G, 3G and 4G. Each service provider is now searching how to accommodate a large number of users within a limited allocated bandwidth, In order to increase the data rate of wireless medium with higher performance, orthogonal frequency division multiplexing (OFDM) is chosen. In this paper, the bit error rate analysis (BER) of discrete wavelet …
Published in Journal of Communication Engineering & Systems · Vol. 4, Issue 1, 2014 · pp. 21–28 Read article
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Innovative Developments of Optical Fiber using Multiplexing/Demultiplexing
Abstract: AbstractAs of late, numerous exploration works have been centered around the fiber optic gadgets for optical correspondence frameworks. One of the principle hobbies is on the optical intensifiers to support a powerless flag in the correspondence frameworks. Keeping in mind the end goal to conquer the confinements forced by electrical recovery, a method for optical intensification was looked for. The contending innovation developed: the first was Raman enhancement. One reason …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 1, 2015 · pp. 21–29 Read article
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PAPR Reduction using Selective Mapping Method for OFDM Communication Systems
Abstract: AbstractSelective mapping method (SLM) is one of the most important techniques used for peak-to-average power ratio (PAPR) reduction of orthogonal frequency division multiplexing (OFDM) communication system. It is simple in implementation, gives distortionless transmission and reduces PAPR significantly. Mathematical modelling and Matlab simulation have been carried out to analyse its performances. At of CCDF, PAPR values for OFDM signal without applying any reduction technique is 11.5, 11.8, 12.1, 12.4 and …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 50–57 Read article
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Study and Performance Analysis of Orthogonal Frequency Division Multiplexing with Different Modulation for Rayleigh Channel Model
Abstract: AbstractFor the advancement of wireless communication systems, methods such as MIMO, OFDM and integrating them together as MIMO-OFDM are very useful. OFDM is used in numerous wireless transmission standards nowadays. In OFDM, high rate data stream is divided into low-rate streams which are transmitted together over a number of subcarriers. A broadband and frequency-selective channel are transformed into a multiplicity of parallel narrow-band single channels by the OFDM modulation. By …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 76–80 Read article
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Corona virus Smart Mask
Abstract: The threat of influenza pandemic is likely to be with us for some time, as new viral-strains will continue to emerge and travel quickly through the new global economy. In the absence of vaccines or effective treatments, non-pharmacological interventions such as hygiene, social distancing, and the medical masks must be implemented as primary means of preventing or slowing down the transmission. Of these, many public health practitioners regard the use …
Published in Journal of Computer Technology & Applications · Vol. 11, Issue 3, 2020 · pp. 8–11 Read article
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Low-power, High-speed, Full-swing Hybrid Full Adder
Abstract: Abstract: Nowadays VLSI design demands low area and low-power consumption. In this study, a low-power, high-speed, full-swing 1-bit hybrid full adder is proposed. The hybrid full adder is decomposed into three sub-modules. For each sub-module, designs are different. Module 1 and 2 are designed using pass transistor logic (PTL) and Module 3 uses transmission gates to produce carry signal. Then by proposed low-power, high-speed hybrid full adder circuits play a …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 3, 2019 · pp. 22–29 Read article
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A Study to Assess the Effectivness of Planned Teaching Program Regarding Use of Personal Protective Equipments to the Staff Nurses Working In Specific Area of Govt. Hospital in Dist. Hisar (Haryana)
Abstract: PPE continues to play an integral role in prevention of transmission of infection in health care setting. The use of PPE is one way to help avoid harming ourselves and harming others. Selecting of PPE must be based on an assessment of risk of transmission of microorganism to the patients and the risk of contaminations of the health workers. Contamination of Clothing and skin by patient blood, body fluids, secretions …
Published in Journal of Nursing Science & Practice · Vol. 12, Issue 2, 2022 · pp. 9–13 Read article
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A Short Review on Nipah Virus Infection (NIV).
Abstract: As an author in the present review, I have provided all the available information of Nipah virus infection (NiV) like definition, taxonomy, structure, outbreaks, mode of transmission, symptoms, diagnosis, treatments available, prevention of Nipah virus after thoroughly searching in all available resources, I hope this can be helpful to all the health care professionals and students to understand, to grasp easily and to recall quickly. Keywords: NIPAH virus infection, definition, …
Published in Research and Reviews : A Journal of Immunology · Vol. 8, Issue 1, 2018 · pp. 31–33 Read article