Volume 6 | Issue 2 |

 Abstract

A circuit breaker is an electrical switch which is invented to protect an electrical circuit from destructions due to overload or short circuit. Circuit breakers are used in AC and DC systems but compared to AC system interruption of dc fault current in DC system is more unreliable due to the absence of natural zero crossing. A solid state DC breaker in a DC system offers rapid response to faults, but it has greater power losses. The Z-source breaker is a type of solid state circuit breaker which was used conventionally in the systems. Nowadays researchers found that the Z-source circuit breaker topology along with the transformer coupling will allow us to detect fault and isolate the circuit suddenly. The proposed system consists of a thyristor based transformer coupling circuit for quick desolation purposes.

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 Keywords

Dc circuit breaker, Z source breaker, transformer coupling, Fast isolation, Thyristor circuit

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Sustainable development, Indian Railways, Sanitation, Public Utilities

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Creative Commons Attribution 4.0 and The Open Definition

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In this research work a sequence in timing of the traffic signals are used which are closer distance to each other so that we can move easily and vehicles does not get red signals. Advantages of sequence wise traffic signals is Low traffic, saving of time, saving of fuel, reduces probability of accidents, avoid heavy traffic. To have a proper sequenced system of traffic signals, here all the signal system arrange in a proper way so that each vehicle get green signal at every signal i.e. possibility of getting red signal is rare. Hence this sequencing minimizes the traffic jam at the signal.

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 Keywords

Traffic signal; Green signals; Red signals; Traffic; Sequence

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Abstract: The need of strength and durability of products or materials used in concrete is more considerable on the aspects of low cost in concrete applications. This project deals with the experimental analysis on strength and durability of concrete by partially exchanging fine aggregate with oyster shell which is an illegitimately disposed waste from oyster farm places. To pursue for a chance to recover the waste as building ingredients, crushed oyster-shell were partially substituted for fine aggregate. To estimate the real-world application of crushed oyster shells as building constituents, the effort has been made to analysis the compressive strength of oyster shell concrete.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Analysis, segmentation, Feature extraction, speaker identification, matching, LPC, MFCC, RASTA filtering

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The Portrayal of Culture in Banana Yashimoto’s Novels The Kitchen and The Lake

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Culture, Contemporary Period, Modernity, Kitchen, Lake

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The issue of unintentional islanding in pv grid interconnection still remains as a challenge in grid connected pv system. Anti-islanding methods generally can be classified into four major groups, which include passive methods, active methods, hybrid methods and communication based methods. This study conclude that the setup and operation cost is the vital factor for anti-islanding method selection in order to achieve minimal compromising between cost and system quality. It is difficult to pinpoint generic methods for a specific application.

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 Keywords

Active method, hybrid method, islanding detection, Passive method, photovoltaic (PV), utility method

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Reconfigurable antennas, Wireless communications, MIMO systems, Mobile terminals, Cognitive radio, Wireless LAN, Wireless sensing Terahertz, communication Millimeter, waves Space communication, Small satellites, Self-biasing Graph models, Arduino Neural networks, FPGA PIN diodes, Varactors RF MEM

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

As we all know in space dimension we have distance ,speed and time. According to einstein general theory of relativity space and time are related to each other. But einstein theory also say that time and space are depending on each other. instead of assuming time as quantity we take it as dimension . according to Hilbert space we have n dimensional space means it have x1,x2,x3......xn co ordinate. similarly we can have time dimension which have co ordinate t1 , t2, t3. tn. a well proved fact projection of 3 dimension can be taken in two dinensions(space.). similarly we are living in projection time. our time is projection 6th dimension time co ordinate. so time and space dimension can be independent of each other under following conditions. *** if velocity of space is very high. we live in time dimension. as time is constant *** if velocity of time is high we live in space dimension which is what we are living. so from above time dimension is inversely proportional to time dimensions. T,=1/S or D=exp(T)

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3

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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foggy weather, poor visibility, haze thickness, Laplacian-based, single input image, transmission map, dark channel prior.

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Creative Commons Attribution 4.0 and The Open Definition