IJERA :: International Journal of Engineering Research and Applications

Abstract:

The beam-column joint has been a topic of study for over 30 years now and still there are many things that yet to be completely understood. The joint was considered to be rigid, however researches have shown that failure may occur at the joint instead of the beam or column. This study was carried out to determine the effect of the diameter of longitudinal reinforcement of the beam on the strength, deformation and ductility in the beamcolumn joint using ANSYS. It was seen that the load carrying capacity and the deformation increases as the
Key word: ANSYS, Beam-column Joint, Diameter of Reinforcement, Finite Element

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Harish R, Nambiyanna B, Dr. R Prabhakara, "Analytical Investigation on External Beam-Column Joint Using ANSYS By Varying The Diameter Of The Longitudinal Reinforcement In Beam" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com

Abstract:

Theidentify stadia of interchange exit ramp hasgreat influence on capacity and safety levels of urbanexpressway,combining with car psychological theory and driverscharacteristics,based on design speed and driver's reaction time, driversoperating characteristics and the cause of the accident on interchange exit ramp was analyzed and the identify stadia threshold under different design speedwas determined. The resultindicates that: the requirements of specification for identify stadia has some limitations, it should be modified appropriately.
Keywords: expressway; interchange exitramp; identify stadia

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TAN Hai, "Research onidentify stadia of interchange exit ramp in mountainous urban freeway"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com

Abstract:

Several acoustic techniques have been used to determine elastic and damping properties of trees, logs and beams in different parts of the world but such acoustic data on timber are not available in standard form in Nigeria. Ten species of locally occurring Nigerian timber (five hardwood species and five softwoods species) were sampled and subjected to acoustic analysis using a "Portable Ultrasonic Non destructive Digital Indicating Tester (PUNDIT), with a view to assessing the stiffness and strength characteristics of the timber species by obtaining the velocity of ultrasonic longitudinal stress waves through the timber piece and hence calculating the dynamic Modulus of Elasticity (MoE) of each species. Results obtained showed that the velocity of acoustic waves through a timber piece and hence the dynamic modulus of elasticity (MoE) of the piece is directly proportional to the strength of the wood. Of all the timber species tested, the species with the highest MoE value (8.48GPa) was Mansonia (mansonia altissima) while that with the lowest MoE value (1.64GPa) was Alstonia (alstonia booeneicongensis). This study thus provides for the first time, valuable data on the strength characteristics of ten commercially available species of Nigerian timber represented in terms of their dynamic MoE values.
Keywords: Nigerian timber, PUNDIT, Acoustic velocity, Modulus of elasticity, Timber strength

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Ezeagu C.A and Okolie C.M, "Acoustic Analysis of Commercially Available Timber Species in Nigeria"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com

Abstract:

Graph theory stands as a natural mathematical model for cloud networks, axiomatic cloud theory further defines the cloud with formal mathematical model. keeping axiomatic theory as a basis, paper proposes bipartite cloud and proposes graph database model as a suitable database for data management .it is highlighted that perfect matching in bipartite cloud can enhance searching in bipartite cloud.
Keywords: Graph database cloud,cloudcomputing,bipartite graph.

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Dr.Arunkumar B R, Komala R, "Introducing Novel Graph Database Cloud Computing For Efficient Data Management" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com

Abstract:

The influence of low CaO steel slag, calcined clay and granite dust on the alkali-silica reaction was investigated over a period of 35 days under accelerated curing conditions. The mineral admixtures were used to replace varying portions of high alkali Portland limestone cement up to an admixture content of 25% in order to study their effect on the alkali-silica reaction (ASR). Portland limestone cement used for the study had a total Na2Oeq of 4.32. XRD analysis of hydrated mortar bar samples confirmed the formation of an expansive sodium silica gel in the reference Portland cement mortar bar as the agent responsible for ASR. Stable calcium silicates were formed in the mortar bars containing calcined clay in increasing quantities whilst the presence of the sodium silicate gel decreased.The occurrence of these stable silicates in hydrated samples containing steel slag and granite dust was however minimal, compared to calcined clay cement mortars. The highest expansion was recorded for granite dust mortar bars, reaching a maximum of 25.98% at 35 days. Mortar-bar expansion decreased as calcined clay content in the cement increased;mortar bars with 25% calcined clay were the least expansive recording expansion less than 0.1% at all test ages. Whilst the expansion was reduced by between 42.5% and 107.8% at 14 days with increasing calcined clay content, expansion rather increased between 36.8% and 169.5% at 14 days with increasing granite dust content.Steel slag mortar bars experienced reduction in 14 days expansion between 14.3% - 46.2%.The study confirms that steel slag and calcined clay pozzolan have greater influence on ASR in mortar bars than granite dust and shows that calcined clay and low CaO steel slag could be considered as remedial admixtures for ASR at replacement levels of 25% and 15% respectively.
Keywords - low-CaO steel slag, calcined clay pozzolan, granite dust, alkali-silica reaction, expansion, sodium silicate gel, calcium silicates

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James Sarfo-Ansah, Mark Bediako, Trinity A. Tagbor, Kwabena Appiah Boakyeand Delali Adjei, "The Influence of Calcined Clay Pozzolan, Low-Cao Steel Slag and Granite Dust On the Alkali-Silica Reaction in Concrete"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com

Abstract:

Kaolin, usually referred to as "hyire" in Ghana is commonly used for traditional religious ceremonies or medicinal purposes. However, there exist abundant kaolin deposits in Ghana whose potential is under-utilized. This work therefore has studied the potential use of kaolin from Anfoega, a small town in the Volta Region of Ghana as a mineral admixture in Portland cement. The raw kaolin was calcined at 700oC to produce metakaolin and milled to cement fineness. The physical, chemical as well as mineralogical properties were conducted on the raw and calcined kaolin. Compressive strength test on the mortars, prepared by replacing ordinary Portland cement with 5% to 40% metakaolin was also conducted. XRF analysis of the metakaolin identified SiO2 and Al2O3 as the dominant oxides whilst the presence of pyrophilites, magnetite and quartz were identified by XRD. Compressive strength decreased as metakaolin content in the cement increased. The optimum replacement was 25%, recording compressive strengths of 11.2MPa, 16.8MPa and 43.0MPa for 2, 7 and 28 days respectively. At 25%, water permeability was improved by 38.7%. Co-efficient of water permeability (Kα) decreased with increasing metakaolin content. This investigation has shown that Anfoega kaolin has good pozzolanic properties and can be used as a mineral admixture in Portland cement.
Keyword— Kaolin, metakaolin, compressive strength, mineralogical composition, permeability

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Tagbor, T, A., Boakye, K. A, Sarfo-Ansah J. and Atiemo, E, "A Study of the Pozzolanic Properties of Anfoega Kaolin" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com

Abstract:

Energy consumption and generation is increasing day by day due to rapid industrialization & urbanization. A major portion of the energy is generated by Thermal Power Plants. Pond ash (PA) and other by-products from these plants are disposed in large quantities. Pond ash utilization helps to reduce the consumption of natural resources. Hence there is scope for using Pond ash as Fine Aggregate (FA). Use of alternative material in concrete such as industrial by-products like Coal Ash (Fly Ash and Pond Ash) is eco-friendly. This study reports the results of experimental studies carried out on the use of Pond ash as Fine Aggregate (FA) in concrete with and without fibre reinforcement. The properties of Pond Ash were compared to the standard sand. The pond ash added by weight is 10%,20%,30%,40%,50% and 60% respectively as replacement of FA in concrete and 2% low tensile steel fibre was used for reinforcement. Experiments carried out indicate that Pond ash as partial replacement of sand has beneficial effect on the mechanical properties. The strength properties are determined for various percentages (10-60%) of replacement of Fine Aggregate with Pond ash with and without fibre reinforcement. The test results indicate that the optimum PA replacement is 20% for both the cases.

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Anand G Patil, Lokesh Gupta, "Studies on Strength Characteristics of Pond Ash Replaced Fibre Reinforced Pavement Quality Concrete"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

Integration and combined utilization of renewable energy sources are becoming increasingly attractive. This paper is a review of hybrid renewable energy systems technologies for power generation, important issues and challenges in their design stage. Generation technology selection and unit sizing, System configurations and Energy management and control are discussed. Applications of hybrid energy systems, advantages of hybrid energy systems, issues and problems related to hybrid energy systems and an overview of energy storage technologies for renewable energy systems are presented. This paper also highlights the future trends of Hybrid energy systems, which represent a promising sustainable solution for power generation.
Keywords: HRES, PV system and fuel cell, HOMER.

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Md. Ibrahim, Abul Khair, Shaheer Ansari, "A Review of Hybrid Renewable Energy Systems for Electric Power Generation"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

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Abstract:

Cloud computing is a huge area which basically provides many services on the basis of pay as you go. One of the fundamental services provided by cloud is data storage. Cloud provides cost efficiency and an efficient solution for sharing resource among cloud users. A secure and efficient data sharing scheme for groups in cloud is not an easy task. On one hand customers are not ready to share their identity but on other hand want to enjoy the cost efficiency provided by the cloud. It needs to provide identity privacy, multiple owner and dynamic data sharing without getting effected by the number of cloud users revoked. In this paper, any member of a group can completely enjoy the data storing and sharing services by the cloud. A secure data sharing scheme for dynamic cloud users is proposed in this paper. For which it uses group signature and dynamic broadcast encryption techniques such that any user in a group can share the information in a secured manner. Additionally the permission option is proposed for the security reasons. This means the file access permissions are generated by the admin and given to the user using Role Based Access Control (RBA) algorithm. The file access permissions are read, write and delete. In this, owner can provide files with options and accepts the users using that option. The revocation of cloud user is a function generated by the Admin for security purpose. The encryption computational cost and storage overhead is not dependent on the number of users revoked. We analyze the security by proofs and produce the cloud efficiency report using cloudsim.
Keywords - Cloud computing, data sharing, data-privacy, role based access control and encryption.

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Rekha Chandankere, Masrath Begum, "Secure Data Sharing In an Untrusted Cloud"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

Theoretical analysis for performance studies of SS316, SS44OC and Titanium Alloy used as a cutting tool is presented in this paper. Tool temperature, tools wear and life of the tool is investigated analytically. These theoretical values are compared with the experimental studies conducted by the author. The values obtained from experimental studies are comparable with analytical values and variation is the correlation between theoretical and experimental values is of the order of 15%.

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Mr. Amaresh Kumar Dhadange, Dr. H.G. Hanumantharaju, Mr. Suresh, Mr. Karthik K Kallur, Mr. Anand S, "Analytical Investigation and Comparison on Performance of Ss316, Ss440c and Titanium Alloy Tool Materials Used As Single Point Cutting Tool"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

This paper presents some common fixed point theorems for weakly compatible mappings via an implicit relation in Fuzzy Menger spaces satisfying the common property (E.A)
Key words: Weakly compatible mappings, Fuzzy Menger space, Semi-compatible mapping, Implicit function, common fixed point.

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Ruchi Singh, A D Singh and Anil Goyal, "Fixed Point Results In Fuzzy Menger Space With Common Property (E.A.)"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

The motors and drives have wide applications from servos to traction and it is mainly used in automation industry, CNC machines and robots. The application of interfacing and commissioning of motor and drive to the tandem test jig helps to achieve improved reliability and cost effectiveness. This paper mainly describes how motors and drive system is interfaced to tandem test jig.BG605 motor grader vehicle is used for grading operation and bank cutting operation of roads. Tandem is a part of BG605 Motor grader equipment and it is used for transmission of power in the equipment. Testing of the tandem before assembling on to the vehicle is very much essential.
Keyword— BG605 Motor Grader, Tandem equipment, Variable frequency drive, AC Motor.

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Varshitha N Gowda, Mrs. Radha R, Arun H, "Interfacing and Commissioning of Motor and Drive to the Tandem test jig" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

AC susceptibility (X_ac=X'+iX") and X ray diffraction (XRD) are very useful for characterizing high Tc superconductors. We report here on the preparation, X-ray diffraction with Rietveld refinement, resistivity p, AC magnetic susceptibility measurements and effect of heat treatments in (Y_1-xNd_x)SrBaCu₃O_6+z. Each sample was subject to two types of heat treatment: oxygen annealing [O] and argon annealing followed by oxygen annealing [AO]. For each x, the [AO] heat treatment increases the orthorhombicity ε = (b-a)/(b+a) (for 0≤x<1), T_c (for x>0.2), the distance d[Cu(1)-(Sr/Ba)] (for x>0.25) and reduced the linear resistivity parameters. The irreversibility line, investigated by AC susceptibility measurements, fit well with the power law relation: H=K'(1-T_p/T_c)ⁿ. Results show that the effect of annealing under argon flux leads to an enhancement of irreversibility line for low applied magnetic field which is justified by the improvement of crystallographic quality and the intergranular coupling of the samples heated under argon flux [AO]. Remarkable correlations were observed. A combination of several factors such as decrease in d[Cu(1)-(Sr/Ba)] for x>0.25; increase in cationic and chain oxygen ordering; psh and in-phase purity for the [AO] samples may account for the observed data.
Keyword— Heat treatments control of T_c, irreversibility line, (Y_1-xNd_x)(SrBa)Cu₃O_6+z, ceramic cuprites

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Abdeljabar Aboulkassim, Abdelhakim Nafidi, Keltoum Khallouq, Redwane Morghi, Essediq Youssef EL Yakoubi, Mohammed Bellioua, Abdellatif Elanique, Ahmed Taoufik, "Enhancement of Structure, Tc and Irreversibility Line in High Tc Superconductors by Heat Treatments"Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

This paper explains the implementation of data encryption and decryption algorithm using hamming code and arithmetic operations with the help of Verilog HDL. As the days are passing the old algorithms are not remained so strong cryptanalyst are familiar with them. Hamming code is one of forward error correcting code which has got many applications. In this paper hamming code algorithm was discussed and the implementation of it was done with arithmetic operations. For high security some arithmetic operations are added with hamming code process. A 3-bit data will be encrypted as 14-bit and using decryption process again we will receives 3-bit original data. The implemented design was tested on Spartan3A FPGA kit.
Keyword— Encryption, Decryption, Hamming Code, Arithmetic, Verilog HDL, FPGA.

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Kurapati Sundar Teja, Shanmukha Mallikarjuna Bandaru, Kurapati Pavan Teja, Fazal Noorbasha, "Data Encryption and Decryption Algorithm Using Hamming Code and Arithmetic Operations" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

Aggressive CMOS scaling results in lower threshold voltage and thin oxide thickness for transistors manufactured in nano regime. As a result, reducing the sub-threshold and tunneling gate leakage currents has become crucial in the design of ICs. This paper presents a new method to reduce the total leakage power dissipation of static random access memories (SRAMs) while maintaining their performance.
Keyword— Leakage currents, SRAM, power consumption

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N.geetha Rani, DR.P.Chandrasekhar Reddy, "Design of Memory Cell for Low Power Applications" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

Settlement prediction methods of soft subgrade based on the soil mechanical theories and mathematical statistics emerges in endlessly, but together with its limitations; the single theoretical calculation method maybe sometimes good, sometimes bad without the capacity to consider the change of the load; however the study of the theory of the combined forecast method is far from perfect. Under this situation, in view of the engineering practice in soft soil subgrade deformation law research in order to put forward a reasonable settlement prediction method, which is a problem urgently to be solved at present. Relying on gravel pile in soft soil subgrade construction in the highway K9+420-K9+550 section, and analyzing the data measured according to the soft soil foundation in the loading and constant loading period, taking classification of embankment load into account, and based on the related parameters of soil at the same time using the numerical analysis of saturated soft soil subgrade deformation-seepage coupling calculation, comparing the measured data with the finite element results and checking the fit, based on detailed sedimentation data by using curve-fitting method for calculating ultimate settlement value and compared with the finite element method settlement value for several years under broaden embankment. The two values differ by 1.5cm, which is in a controllable range for soft soil. Then thus the results are true and reliable in order to have implications for similar projects.
Keyword— soft soil subgrade; large deformation; numerical analysis; curve fitting; sedimentation prediction

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Tang Ransong, Zhou Pan, Lu Jing, "Settlement prediction research on the gravel pile in soft soil subgrade" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×

Abstract:

Under the leadership of the Kyoto agreements on reducing emissions of greenhouse gases, the automotive sector was forced to review its methods and production technologies in order to meet the new environmental standards. In fuel consumption reduction is an immediate way to reduce the emission of polluting gases. In this paper, the study of the formability of sheet submitted to the hydroforming process is proposed. The numerical results are given to validate the proposed approach. To show the influence of uncertainties in the study process, we take some characteristics of the material as random and the probabilistic approach is done. The finding results are showing the effectiveness of the proposed approach.

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Mohammed Nassraoui, Bouchaib Radi and Abdelghani Saouab, "Probabilistic approach to study the hydroformed sheet" Vol. 5 - Issue 8 (August - 2015), International Journal of Engineering Research and Applications (IJERA) , ISSN: 2248-9622 , www.ijera.com ×