Volume 6 | Issue 2 |

 Abstract

Abstract : Bamboos are a valuable and precious gift of nature to man. Bamboo play a dominant role as woody raw material for a variety of products in the tropical regions. Bamboo is the fastest growing plant in the world having growth up to 60 cm or more in a day. Bamboo has social, economic and cultural significance and is used extensively for building materials along with thousands of uses. It is highly versatile raw material for different works. The bamboo is light weight, flexible, tough, high tensile, cheap material than the other building material like steel. Bamboo structures are flexible, earthquake resistant, light weight and cheap. There are various species of bamboo found all over the world. Dendrocalamus strictus is the predominant specie found in India. Male bamboo or Dendrocalamus strictus or Lathi bans occupies total 53 percent of total bamboo area in India. Various quality parameters are conducted by the author on the specie. This paper investigates the various quality parameters of Dendrocalamus strictus.

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 Keywords

Index Terms- Bamboo, quality parameters, male bamboo, Dendrocalamus strictus or Lathi bans

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The technology of pneumatics plays a major role in the field of automation and modern machine shops and space robots. The aim is to design and develop a control system based intelligent electronically controlled automotive bumper activation and automatic braking system which is called as AUTOMATIC PNEUMATIC BUMPER AND BRAKING SYSTEM FOR FOUR-WHEELER. This project consists of Ultra-sonic transmitter and receiver circuit, Control Unit, Pneumatic bumper system and braking system. The Ultra-sonic sensor senses the obstacle. If there is any obstacle closer to the vehicle (within specified distance), the control signal is given to the bumper activation system and also braking system simultaneously. The pneumatic bumper and braking system is used to protect the man and vehicle.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Ultrasonic sensors, Pneumatic bumper, Automatic braking system.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

A power quality issue is due to the any deviation on fundamental voltage, current and frequency. Due to power quality issues more electrical equipments are damage.non linear load with power electronic switches and higher frequency switching devices more affect to power quality. For improvement of power quality use a n shunt active power filter. In this paper introduced two different control techniques for shunt active power filter. One is the instantaneous active reactive power theory and second is synchronous reference frame theory. There are comparative analysis between two control techniques. The simulation results are presented by MATLAB/SIMULINK software.

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 Keywords

Active power filter, Hysteresis control, THD, power quality

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 Abstract

Many cities over India are now becoming smart cities to achieve well developed status. In process of this development and urbanization there is lack of space and food in cities where we require the concept of smart farming. To fulfil the growing need of food we are developing this smart farming project using aeroponics technique, and our main objective is to make the aeroponics technique automatic plus making the setup universal for multiple vegetable crops. In this automatic aeroponics system water and nutrition is fed to crops as per periodic cycle inside roots section. Temperature, humidity, pH and level of nutrition solution in reservoir are monitored. In absence of sunlight artificial light will be provided for photosynthesis. Overall automated system helps to reduce human efforts and increase the growth rate of plants.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Smart Farming, Aeroponics, Monitoring and Controlling, Humidity, Growth rate of Plants.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Purpose of this investigation is to augment HTC with minimum pressure drop inside pipe carrying cold water surrounded by hot water using passive technique with turbulent flow. The passive technique used in this paper is helical coil wire as turbulator. The CFD Analysis is done for Divergent Convergent Turbulator in simulation software and the turbulator is analyze for various wire diameter of 0.7, 1.0, 1.5, 2.0, 2.5 and 3 mm and also by varying the mass flow rate of working fluid. From the results obtained by this analysis the most optimum dimension of the turbulator is selected for manufacturing and further experimentation is performed for validation with simulation software results. Also, the experimental result of Divergent Convergent Turbulator is compare with Twisted Tape Turbulator for same boundary condition and comparison has proven that Divergent Convergent Turbulator increases the HTC by 33% more than Twisted Tape Turbulator.

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 Keywords

Pressure drop, HTC (Heat Transfer Coefficient), Divergent Convergent Turbulator, Twisted Tape Turbulator, CFD

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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

Regression testing,Test case prioritization, Search algorithms,Nature based algorithms.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The strength and durability of the concrete is dependent on curing. Self curing concrete can be used where curing is a constraint because of inadequacy of water, fluoride content in water which affects concrete characteristics and where structures cannot be accessed for curing. Poly Ethylene Glycol (PEG), Poly vinyl Alcohol (PVA), paraffin wax, acrylic acid is some of the commonly available hydrophilic materials in market. As aggregate represents about 70-80% of concrete components so it will be beneficial to recycle the aggregate for construction works and also to solve the environmental problems. To minimise the problem of excessof waste material it is a good step to utilize the recycled aggregates provide that the desired final product will meet the standards. Current practice assesses the quality of concrete based Primarily on strength. It has been suggested that the quality of concrete should be characterized not only by strength but also its durability characteristics. In the present investigation the individual effect of curing agents like PEG 600 ana PVA on strength and durability properties of concrete with varying dosages of 0.5%, 1%, 2% was investigated for M30 grade of concrete using recycled aggregate. Compressive strength, flexural strength, tensile strength and sorptivity, acid attack and permeability were evaluated to determine the strength and durability properties of hardened concrete. It was found that PEG600 and PVA could help in gaining the strength of conventional curing. The results indicate that PEG600 of dosage of 2% and PVA of dosage of 1% was optimum by giving strength on par with conventional concrete. The results indicate that self-curing concrete performs similar to the conventional concrete in all aspects of durability.

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 Keywords

recycled aggregate, concrete properties,Poly ethylene glycol (PEG-600), Poly vinyl alcohol (PVA), mechanical properties, durability properties.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

raveendranaath taigor ke anusaar maanav jeevan mein svatantrata ka mahatv

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Creative Commons Attribution 4.0 and The Open Definition

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raveendranaath taigor ke anusaar maanav jeevan mein svatantrata ka mahatv

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Filtering is the significant criteria to keep up power quality improvement in the three stage three wire framework.Presently active power filters are generally preferable for this reason.Taditional PI control techniques are disadvantageous in killing higher harmonics, created by the second harmonics at the DC link of a shunt APF. This paper proposes PR control strategy which invalidates second harmonics and provides better execution exactness contrasted with the conventional positive succession control technique and DC link voltage control technique separately regarding quality improvement and cost adequacy.

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 Keywords

Shunt active power filter,proportional integral controller

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The greater part of the business and mechanical establishment in the nation has expansive electrical burdens which are severally inductive in nature causing slacking power factor which gives overwhelming punishments to shopper by power board. This circumstance is taken care by PFC. Power factor rectification is the limit of engrossing the reactive power created by a heap. It comprise of a small scale controller which recognizes the power factor value, if the power factor goes low it consequently associate capacitor bank to enhance it. The primary point of the model is to keep up the power factor as high as conceivable which builds the proficiency of the framework.

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 Keywords

POWER FACTOR, POWER FACTOR CORRECTION, REAL POWER, APPARENT POWER, REACTIVE POWER, CAPACITOR BANK, RECTIFIER.

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Creative Commons Attribution 4.0 and The Open Definition