IJSRD - International Journal For Scientific Research and Development: e- Journal

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Tuesday, 12 January 2016

CALL FOR PAPERS : January 2016 | IJSRD


Impact Factor: 2.39
Publication charges : 750 INR
Submission Last Date : 25-Jan-2016
Publication Last Date : 1-Feb-2016
We publish original and high quality papers.


IJSRD is a leading e-journal of india,  under which we are encouraging and exploring newer ideas of current trends in Engineering and Science by publishing papers containing pure knowledge. IJSRD is Trusted by more than 25000 satisfied authors worldwide & growing rapidly.

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Wednesday, 16 September 2015

Manufacturing Techniques of Fibreglass Reinforced Composites

IJSRD found Good research work on Mechanical research area.

Abstract— Combining a high strength fibre with a polymeric matrix produces a composite material with higher stiffness and strength. There are many techniques to produce composite materials, among which few techniques are discussed here based on its process, capabilities and application of composite parts. Among which hand lay-up, vacuum infusion, resin transfer molding and sheet molding compound are widely used. The prepreg is widely used for manufacturing composite parts.

Key words: Fibreglass Cloth, Fibre Reinforced Composites, Prepreg, Vacuum Infusion, Sheet Molding Compound

Introduction

The global nature of today’s reinforced plastics industry creates a demand from all over the world. To produce a composite item, two basic components are required, these being a synthetic resin and a strong fibre [1]. The resin, which can be in the form of a polyester, epoxy or vinyl ester, is normally supplied as a viscous liquid, which sets to a hard solid when suitably activated [1]. The fibre may be glass, carbon, or a combination of some or all of these. What makes composites unique is the fact that the material of construction and the end product are produced simultaneously. Using a suitable mould, layers of fibre are impregnated with activated resin until the required thickness is achieved [1]. After completion, the mould is removed, which further can be used to produce more no. of identical items. These products are FRP cylinders, FRP sheets, FRP components for Transformers, and switchgears products. In the manufacturing of the Fibreglass epoxy sheets are more difficult tasks as it has many intermediate processes to manufactured sheets. The sheets are the combination of the fibreglass cloth and resin matrix that bond with the fibreglass cloth to make highly strength composites. Glass fibres fall into two categories: low-cost general-purpose fibres and premium special-purpose fibres. Over 90 % of all glass fibres are general- purpose products. These fibres are known by the designation E-glass. The remaining glass fibres are premium special-purpose products [2]. Specialpurpose fibres, which are of commercial significance in the market today, include glass fibres with high corrosion resistance (ECR-glass), high strength (S-, R-, and T Eglass), with low dielectric constants (D-glass), high-strength fibres, and pure silica or quartz fibres, which can be used at ultrahigh temperatures[2].

Fig. Schematic Illustration of the Vacuum Enhanced Resin Infusion Technology (Verity)

Vacuum Infusion:

The most popular term to describe vacuum infusion processes are Vacuum Assisted Resin Transfer Moulding (VARTM), Vacuum Assisted Resin Infusion Moulding (VARIM) etc, basically the same technology, and describe methods based on the impregnation of dry reinforcement by liquid thermoset resin driven under vacuum, and this technique made to reduce the void content inside the molded composites. With vacuum bag moulding, the bags are used to evacuate the air from laminate and to generate the atmospheric pressure required for compaction over the mold [7]. Infusion processes are plagued by limitations such as lower fibre volume fraction, lack of uniform resin distribution, higher porosity, control on thickness of part, clogging of resin and vacuum feed lines. CSIR-NAL has developed a proprietary infusion process called VERITy (Vacuum Enhanced Resin Infusion Technology), Kundan et al. (2013), to overcome the above limitations. The process is designed in such a way that it is scalable from a laminate level to a complex cocured primary structure like the wing of a transport aircraft. A schematic of the VERITy process is shown in Fig

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Saturday, 1 November 2014

IIT #Techfest International Student #Conference #IJSRD

Techfest International Student Conference is an initiative to bring together the student community and professors with a common research background. TISC marks a step further in our endeavor to promote science and technology among the students by facilitating the exchange of knowledge between academia and industry.

Techfest International Student Conference presents a unique opportunity for students to present their work in front of fellow students, senior professors from top universities, industrialists and policy-makers. It aims at giving recognition to students for their research at a relatively young age. An enriching experience to research oriented minds, TISC will give young scientists an insight into the topic, learn new ideas and build networks beneficial for the future.

The theme for the conference is Renewable Energy Systems, potentially the most important aspect of human life in forthcoming decades. TISC is being hosted by IIT Bombay, one of the premier institutes of science and technology in India known for its path-breaking research and quality education.

Tuesday, 21 October 2014

#IJSRD & TechFest 2014-15 (IIT-Bombay) presents TISC(Conference)

IIT Bombay presents Asia’s Largest Science and Technology Festival. TISC(Conference) event is supported by IJSRD. For more details, please visit the following link
http://www.techfest.org/conference

Tuesday, 7 October 2014

A Glimpse into the 3-D brain | #IJSRD

People who wish to know how memory works are forced to take a glimpse into the brain. They can now do so without bloodshed: Ruhr Univ. Bochum (RUB) researchers have developed a new method for creating 3-D models of memory-relevant brain structures. They published their results in the trade journal Frontiers in Neuroanatomy.

3-D image of the hippocampus of a rat. Image

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Information become memories

In future, this method may help us understand how animals, for example, combine various information to form memories within the hippocampus, in order to memorise food sources or dangers and to remember them in certain situations.

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Tuesday, 19 August 2014

#IJSRD Digital Watermarking Methods in Spatial Domain and Transform Domain

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Digital Watermarking Methods in Spatial Domain and Transform Domain

Abstract--- The ease of digital media modification and dissemination necessitates content protection beyond encryption. Information hidden as digital watermarks in multimedia i.e. text, image, video, audio enables protection mechanism in decrypted contents. In a way that protects from attacks several common image processing techniques are used in Spatial Domain and Transform Domain. In Spatial Domain Least Significant Bit(LSB) is used and in Transform domain Discrete Cosine Transform(DCT) & Discrete Wavelet Transform(DWT) are used. Among these DWT is best method due because of using embedded zero tree wavelet image compression scheme and high frequency sub bands.

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Friday, 15 August 2014

#IJSRD advanced persistent threat (APT)

Advanced Persistent Threats (APTs) are a cybercrime category directed at business and political targets. APTs require a high degree of stealithiness over a prolonged duration of operation in order to be successful. The attack objectives therefore typically extend beyond immediate financial gain, and compromised systems continue to be of service even after key systems have been breached and initial goals reached.

to know more about APT go to this link https://www.damballa.com/advanced-persistent-threats-a-brief-description/

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#IJSRD MOBILE PROTECTION VICTIMISATION VOICE VERIFICATION

Cellular communication business has developed leaps and bounds to become the core of day to day science. Mobile phones is that the spirit of cellular business. the quantity of mobile phones users is rising exponentially. however the privacy of user and security of mobile phones leftovers a difficult question. Theft of mobile phones has become the attention catching business for offender. There ought to be a reliable methodology of protective the instrument from thief. My paper proposes a brand new innovative, reliable, trick proof precautions for mobile phones victimization VOICE VERIFICATION. Voice verification is that the identification of a personal identity victimization speech because the spotting quality. The voice of the user is processed employing a digital gesture processor that is that the prime a part of a mobile. we have a tendency to are programming this DSP to implement this safety technique. For most a resourceful voice record of the user is formed. This record is hold on within the Flash read-only storage that is out there within the mobile. Then whenever the user speaks through the mobile phones a part of the speech sample is taken and hold on. This processed voice of the user is compared with the first folder to examine the identity of the user. If the user is allowed, he’s allowed to continue his speak. If not the transmission is cut unexpectedly by creating the DSP in inactive state. Therefore the mobile is being shielded from any extralegal user. Not with standing the mobile phones was purloined or lost it won’t be helpful for the other individual. The programmability of DSP and generality of Voice based mostly classification has given our methodology a twin advantage. Our set up demands neither external hardware nor additional price. The on top of methodology cause no hardship for the user not like this safety systems. This methodology may be adopted universally altogether models of Mobile phones and mobile phones for cover.

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Wednesday, 13 August 2014

#IJSRD Cost effective and innovative housing technology

The current paper describes how quaternions are used successfully and effectively in simulations of unmanned aerial vehicles (UAVs) and satellite motion through definition of the UAV airframe or satellite body as a rigid body. By such means the authors try to raise interest among students and scientists in the mathematical formalism of quaternions that was very popular more than 100 years ago, but was replaced by vectors and matrices. Nevertheless, quaternions benefits make them valuable in numerous tasks, among others the numerical integration of rigid body motion dynamics equations.Simulations, part of the current project, can be viewed on http://ialms.net/sim/ web address.

Tuesday, 12 January 2016

Impact Factor: 2.39 Publication charges : 750 INR Submission Last Date : 25-Jan-2016 Publication Last Date : 1-Feb-2016 We publish original and high quality papers.

IJSRD is a leading e-journal of india, under which we are encouraging and exploring newer ideas of current trends in Engineering and Science by publishing papers containing pure knowledge. IJSRD is Trusted by more than 25000 satisfied authors worldwide & growing rapidly.

Wednesday, 16 September 2015

Saturday, 1 November 2014

Tuesday, 21 October 2014

Tuesday, 7 October 2014

Tuesday, 19 August 2014

Friday, 15 August 2014

Wednesday, 13 August 2014