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International Journal of Engineering and Advanced Research Technology

Volume 2 Issue 3 (March 2016)

S.No. Title & Authors Page No View
1

Title : Based on the thermal insulation pipe eccentricity detection of eddy current sensor design

Authors : Jing Shu, Dong-lin Tang

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Abstract :

Thermal insulation pipe eccentricity detection has important influence on the service life of anti-corrosion insulation pipe. But eccentric detection using wide-range eddy current sensor is less and in high prices.  Based on Biot-Savart Law, the analytic design for eddy current sensor; Using electromagnetic field numerical analysis methods, the analytic design of the coil parameters for the numerical analysis, analysis results are consistent with the results of analytical design. In order to illustrate the correctness of the analytical design method and numerical model, for the design of the eddy current sensor and the design parameters of impact analysis provide some guidance.

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2

Title : Global attractivity and positive almost periodic solution of a discrete multispecies Gilpin-Ayala competition system with feedback control

Authors : Hui Zhang

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Abstract :

This paper discusses a discrete multispecies Gilpin-Ayala competition system. We first achieve the permanence of the system. Assume that the coefficients in the system are almost periodic sequences, we obtain the sufficient conditions for the existence of a unique almost periodic solution which is globally attractive. One example together with numerical simulation indicates the feasibility of the main results.

5-10
3

Title : Suitability of High Temperature and High Strain Rate Superplastic Deep Drawing Process for AA5052 Alloy

Authors : Chennakesava R Alavala

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Abstract :

In the present work, the suitability of high temperature and high strain rate deep drawing process was assessed for AA5052 aluminum alloy. The assessment was carried out using Taguchi technique and finite element analysis. The process parameters were temperature, strain rate, coefficient of friction and blank holder velocity. The formability limit diagrams were drawn for all the trials. 

11-14
4

Title : Physical Characterization of Granular Aggregates and the Incidence on Concrete Strength

Authors :

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Abstract :

The resistance of concrete cores to uniaxial compression has been proved to be sensitive to the physical properties of the granular materials used in their production. In the present work, we demonstrate that a simple and easy protocol for measuring some physical properties like shape factors, apparent density and specific surface of the granular aggregates before being added to the concrete, can predict, at least qualitatively, the future behavior of a core made of that concrete and subjected to uniaxial compression. But, unlike in previous works, we find an important physical factor that has a crucial role: the presence of cleavage planes in the aggregates. This assessment is contrasted here with experimental evidence using granular materials resulting from huge waste deposits of flagstone and granite coming from the mining production. These discards provoke a significant environmental pollution, in addition to economic losses. Besides the correlation between the physical parameters of grains and the resistance response of concrete cores, we also prove that granular discards may be used as part of the aggregates in the concrete mixture if proper proportions are chosen. This last issue is promising when environmental recovery is on course.

15-21
5

Title : Acoustics Reduction in Marine Vessel Using Active Noise Cancellation System

Authors : R. Bala Anand, K.S. Arun, K. Baskaran, R. Daniel

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Abstract :

Noise from anthropogenic sources is considered as a world-wide problem for marine biosphere, and recent studies have shown a wide range of adverse effects in various species. Underwater noise from shipping is widely accepted as a vital and prevalent pollutant with the capability to impact marine ecosystems on a global scale. Recent researches have confirmed an alarming effect of shipping noise on aquatic life. It is clear from previous researches that the noise is proportional to the speed of ship and their size. The smaller ships had little effect on noise and the military ships were comparatively quiet but their technology is unrevealed. However, we have proposed a possible solution to reduce the noise from ships. The active noise cancelling principle could be effectively installed in large ships. A three dimensional wave cancellation technique has been developed to reduce the noise. The main idea is to actively cancel the noise and phase out in order to reduce the amplitude which will in turn reduce the effect of noise pollution on flora and fauna.

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6

Title : Development of Microbially Induced Calcium Carbonate Precipitation Technology in Soil Improvement

Authors : Tang Junfeng, Zhao Yu, Ruan Yuanyuan, Lin Xiaoyu

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Abstract :

Bacteria plays an important role in the mineralization process in nature. It participates, induces or controls the formation of inorganic mineral deposit. This paper presents an overview of soil reinforcement techniques based on MICP. In this paper with the discussion of research results and status in both domestic and international areas, the role of microorganism in calcite precipitation and the modification mechanism is systematically summarized. Comparison and selection of several MICP methods are made. And it also offers the great application prospect of the introduction of microbe debris flow prevention and control which are urgently needed to be solved and described.

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7

Title : Voltage Stability for Hybrid Power System Feeding Loads in Isolation

Authors : Mukesh Sahi, Dr. Dinesh Birla

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Abstract :

Reactive power limit of the system affects its Voltage stability. The wind driven self excited induction generator and permanent magnet synchronous generator (PMSG) with solarphotovoltaic (SPV) power generating system are combined to feed the linear/non-linear balanced/unbalanced loads in isolated regions. Powers from all sources are combined at common coupling point.  Nonlinear and unbalanced loading condition demands reactive power from the system.Whole system with load side controller is simulated in the matlab simulink to show the voltage stability during nonlinear and unbalanced loading condition. Load side controller provides required reactive power flow in the system thereby improving voltage stability.

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8

Title : A Reputation Management Policy Based on the User Credibility for Cloud Services

Authors : Xiao-gang Cai, Qing-tao Wu, Ming-chuan Zhang

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Abstract :

In order to ensure the high availability of the cloud service credit system, and for that there are some problems such as disloyal evaluation existed in the system, the lack of enthusiasm for evaluation and so on, a cloud service resource management strategy based on the credibility is proposed. This paper uses the "credibility" of the user nodes to modify reputation value of cloud services, which based on the distributed computing of cloud service reputation, introduces the dynamic incentive mechanism to improve the enthusiasm of user evaluating cloud services simultaneously, and combines calculation credibility, the modification reputation and evaluation incentives to build a distributed reputation evaluation model of high credibility. The simulation results verify its feasibility and effectiveness, and improve the enthusiasm of the user evaluating cloud services while improve the accuracy of the results is improved.

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9

Title : The Analysis of Influencing Factors of Steel Bars Property by Neural Network

Authors : Shen-Whan Chen, Yu-Ju Chen, Chuo-Yean Chang, Chun-Yi Wu, Rey-Chue Hwang

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Abstract :

This paper presents an analysis of influencing factors of rolled steel bar’s property by a novel neural network (NN) computational method. Through the learning process of NN, the nonlinear and complicated relationships among bar’s mechanical properties, billet chemical compositions and rolling parameters could be clearly obtained in accordance with the influence rates (IR) calculated for all possible influencing inputs. Such an analysis method could be further developed into an artificial intelligent mechanism which can not only help the technician without full experience to precisely set the relevant control parameters in the steel bar’s manufacturing process, but also help the company to produce the high quality steel bar.

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10

Title : Zhe yins energy and Wave theorem

Authors : Zhe yin

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Abstract :

This paper presents new findings about energy and wave. We present three results : firstly, the force has a function of reflection and refraction; secondly, the energy and the wave coexist; thirdly, the field change is the necessary and sufficient conditions of energy conversion.

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11

Title : Experimental Investigation on Strength and Shrinkage Properties of Concrete Mixed with Magnetically Treated Water

Authors : T.Manjupriya, Dr. R.Malathy

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Abstract :

The most important challenge for concrete construction is to improve the performance of concrete. Till now potable water is used for mixing different ingredients of concrete. This paper finds new technology called magnetic water technology has been used in making concrete. As per this technology, by passing water through a magnetic field, some of its physical properties tends to change and, as a result of such changes, the cluster size in water molecules breaks down due to decrease in the bond angle between the hydrogen atoms, which causes decrease in the hardness of water, with an improvement in the workability and strength of concrete when compared to use of potable water in concrete. It also has an advantage that the quantity of cement content in concrete mix can be reduced when the magnetized water is used in concrete. Some of the most beneficial claimed water applications from magnetically treated water include improvement in scale reduction in pipes and enhanced crop yields with reduced water usage. Strength tests conducted on this magnetic water concrete showed encouraging results and one can easily replace normal water with magnetic water for mixing of concrete. Drying shrinkage properties has been studied and that results are compared with specimen mixed with potable water.

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12

Title : Using Remote sensing technique for estimation of real evapotranspiration

Authors : Hassan Fathizad, Bijan Azad, Ali Yousefi, Azin jafarian

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Abstract :

Evapotranspiration is not easy to measure; Specific devices and accurate measurements are required to determine evapotranspiration. In this research, using the RS technique, the amount of real evapotranspiration will be determined in Chaviz sub-basin of Ilam dam catchment. n this study, there has been employed the image of ETM+ Landsat satellite dated June the 15th 2010. ENVI4.7 software was used to obtain the needed information from the image of ETM+ Landsat satellite. The daily information for estimation of evapotranspiration of reference crop was provided from Ilam weather forecast station. Finally, geometric calculations were done using ArcGIS9.3 software and there were obtained outputs from the prepared maps. In this work, real evapotranspiration has been estimated using bands 3&4 of ETM+ satellite and also vegetation fraction index. This is a new method for evaluating real evapotranspiration in the catchment and regional scale. The results show that real evapotranspiration with values of the 0-2.92 mm/day is dominant in Chaviz sub-basin. The most largest area in which evapotranspiration happens is the area of ranges (%63). Forest land use in the next rank. The maximum evapotranspiration happens in gardens (8.9 to 11.71 mm/day) but they cover only a little area of the basin (%10) and the minimum evapotranspiration happens in the land use of the ranges (0 to 2.92 mm/day) which covers a large area of the basin (%63). Base on the results of this study, it can be claimed that the rate of evapotranspiration is low in Chaviz sub basin (Ilam dam). Also, since this range of evapotranspiration coincides the area of ranges, it can be said that land use of the ranges enjoys less evapotranspiration comparing with other kinds of land uses and its water needs are accordingly lower than others. 

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13

Title : An Analysis on the Velocity Field of Decanter Centrifuge on the Basis of Fluent

Authors : Qiyun Cheng, Hongbin Liu, Yuxin Tian

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Abstract :

Because of the complex internal structure and the high-speed operation inside, the real-time monitoring of decanter centrifuge’s internal flow field is impossible. The natures of internal flow field directly effects the production capability, separation and operating life of centrifuge. The paper is finished upon the basis of high-speed decanter centrifuge LW355-1235. We use Fluent, the large-scale commercial fluid computation software, to obtain the distribution of velocity field by simulating the internal flow field with the use of RNG turbulence model under different circumstances. The whole process is carried out with existence of revolving speed discrepancy. The result shows that every velocity component of fluid is getting bigger when we increase the revolving speed of drum. Besides, the gap between the simulation value and theoretical value is getting wider, and the axial velocity turns to be slower. For fluid phases with different concentrations, the declining rates of axial velocity are tend to be the same. Besides, the separation is getting worse when the speed discrepancy gets smaller. It also provides basis for the further analysis of high-speed decanter centrifuge.

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