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Volume 5 Issue 5 (May 2018)

S.No. Title & Authors Page No View
1

Title : Perspective on the High Housing Prices in Shenzhen from the aspect of Economic Information Management

Authors : Mengshan Zhu

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Abstract :

This article uses the systematic analysis method of economic information management to comprehensively analyze the event of soaring house prices in Shenzhen around the Spring Festival in 2016 from three aspects: market supply, government management, and consumers, and points out that this phenomenon is a combination of multiple factors. As a result, and to some extent, it caused the loss of talent in Shenzhen. Finally, the article proposes measures and enlightenment to solve this problem.

1-5
2

Title : Stress analysis and design of cylinder bearings supporting metal bridges

Authors : Andrew Ch. Yiannopoulos

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Abstract :

The present work presents a method for dimensioning solid cylinders supporting metal bridges at the side of the stationary hinge, which is known as cylinder bearing. The hinge constitutes of two plates with curved surfaces in contact with a cylinder between them. The imposed forces on the hinge cause contact pressures distributed on two antisymmetric circular arcs. If the arcs are too large, the Hertz theory can not be used for the calculation of stresses because it gives no sufficient results. For this particular problem an exact solution is given for normal and shearing stresses on the whole cylinder cross section. The octahedral shearing stress is used as a criterion to express the strength of the cylinder according to the maximum distortion energy theory, because it offers a more reliable tool to estimate the strength of the cylinder material. Moreover, a design equation is derived which may be useful to engineers, if they have to calculate the cylinder dimensions. The results show that the cylinder dimensions should be higher than estimated by other designers.

6-11
3

Title : Effect of Discarded Iron and Plastic as Partial Replacement of Sand in Concrete

Authors : S.Krishnaveni, S.Sivaranjani, G.Jothi, D.Dhaarani

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Abstract :

The increasing demand for sand and due to it’s high cost and depletion of natural resource it is necessary to find replacement of sand in concrete. Reuse of solid waste as partial replacement of aggregate in construction activities results in reducing the demand for extraction of natural raw materials. In view of the fact that iron and plastic wastes are widespread types of non biodegradable solid wastes derived as discarded materials form several industrial processes, the knowledge of their combined influence on the strength properties of  concrete is worth to be considered. The purpose of this project is to evaluate the possibility of using mixed iron filings and shredded PVC plastic simultaneously to partially sub statute the fine aggregate in concrete composites.

12-14
4

Title : Smoothing, Sharpening and Segmentation of Image

Authors : Dr Mir Mohammad Azad, M N I Chowdhury

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In smoothing, the data points of a signal are modified so individual points (presumably because of noise) are reduced, and points that are lower than the adjacent points are increased leading to a smoother signal. Sharpening is the process of creating or refining a sharp edge of appropriate shape on a tool or implement designed for cutting. Sharpening is done by grinding away material on the implement with an abrasive substance harder than the material of the implement, followed sometimes by processes to polish the sharp surface to increase smoothness and to correct small mechanical deformations without regrinding Image segmentation is the process of partitioning a digital image into multiple segments (sets of pixels, also known as super-pixels). The goal of segmentation is to simplify and/or change the representation of an image into something that is more meaningful and easier to analyze. Image segmentation is typically used to locate objects and boundaries (lines, curves, etc.) in images. More precisely, image segmentation is the process of assigning a label to every pixel in an image such that pixels with the same label share certain characteristics.

15-18
5

Title : Wet Reclamation for Improving Properties of Waste Silica Sand from Foundry

Authors : Dewi Idamayanti, Ari Siswanto, R. Widodo, Aldy Budhi Iskandar

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Abstract :

Metal casting commonly uses silica sand with water glass as a binder for mold and core. Water glass binder that overlays grain sand was harden by CO2 gas to form silicate bonding.  The   waste silica sand was not able to be  reused as mold and core because its properties changed due to high temperature exposure during casting process that converted silicate bonding become refractory compound. Recently, several methods were developed to recycle  waste silica sand. The methods recommended were mechanical, thermal and wet methods. In this research, wet method has been selected to reclaime  waste  silica sand due to good properties result.  The research methodology involved several processes. Lumps of  waste  silica sand was crushed mechanically then mixed with water at the ratio of 1  : 1 by weight and  stirred at the speed of 1400 RPM. The mixing and washing steps have been done gradually until five times. The properties of reclaimed silica sand resulted sintering point over 1300oC, loss on ignition 0.5%, grain fineness number 76.6, and dust content 0.42. Its physical properties comply standard specification of silica sand. The reclaimed sand after fifth washing was observed under SEM and showed that most of sand grain could be separated and it had the angular shape with medium sphericity.

19-22
6

Title : Pseudo-umbilical time-like submanifolds in locally symmetric pseudo Riemann manifold

Authors : HuiRunBai

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In this paper,  we  studied the pseudo-umbilical time-like SubmanifoldsMimmersed in a  locally symmetric pseudo Riemannian manifold.   when  is compact and with parallel mean  curvature vector,  the sufficient conditions for to be total geodesic are obtained by  using the Hopf  maximum principle.

23-25
7

Title : Adsorption Capacities of Modified Substrates in Bioremediation of Toxic Water Pollutants

Authors : Omotoso Toyin, Oluwasegun O Aluko

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Abstract :

This paper unveils the potency of bioremediation as a cost effective and environmental friendly method of soil and ground water pollution remediation. A review of conventional methods was carried out in order to evaluate various success of bioremediation in its ability to alleviate toxicity in water and soil. The paper further presents the results and findings of an experimental research on the adsorption of some toxic metals (found in an industrial central sewage treatment site) onto EDTA modified bagasse, coconut fiber and groundnut shell. The trend of the sorption capacity was found to be Fe>Mg>Cu>Cr for bagasse, Fe>Cr>Cu>Mg for groundnut shell and Fe>Cu>Cr>Mg for coconut fiber. Generally, the results show that the EDTA modified bargese possesses the highest adsorption capacity among the substrates for the elements cadmium, and chromium, copper and silver.

26-29
8

Title : Mean Excess over a Threshold for Number of Customers in Discrete-time Geo^x/D/Queue

Authors : Kye Sang Lee, Yutae Lee

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Abstract :

This paper considers a discrete-time Geo^x/D/queueing system where customers arrive at a facility with a single server according to a batch geometric process with customer service times assumed to be one slot. This paper investigates the mean excess over a threshold for the number of customers in the queueing system.

30-31
9

Title : Isolation and Characterization of Solventogenic Clostridia for Biobutanol Production

Authors : Bhutada V, Shrivastava S

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Abstract :

Screening of solventogenic Clostridia was carried out by enrichment of different samples such as compost, soil and mangroves in DRCM broth and thioglycollate broth anaerobically. On Subsequent isolation, 38 different catalase negative and weakly positive isolates were obtained on DRCM agar. Two isolates BS1 obtained from soil of rhizosphere near cactus plant produced maximum of 7.5 g/L of butanol in AAM medium. Butanol, butyric acid and sugar tolerance BS1 was found to be 18 g/L, 4 g/L and 200 g/L respectively. The ability of organism to produce butanol in medium such as RCM, ANS and TYE was tested, RCM was found to be equally effective like AAM, but was found to be uneconomical then AAM.  An isolate CD1 obtained from cow dung was also able to produced 6.1 g/L of butanol did not give reproducible butanol thus BS1 was selected for further study. Growth curve of BS1 was studied in AAM medium to determine the onset of acidogenic and solventogenic phases for optimum butanol production. Growth of BS1 was observed after 16 hours of incubation and it was in the log phase of growth till 36 hours. Maximum pH drop was observed and reached to a steady pH. When the smears of endospore staining were observed under microscope it was observed that cells of BS1 entered sporulation stage after 36hours. At the same time gas chromatography of withdrawn fermentation revealed onset of solvent production and maximum 7.54 g/L butanol was produced by metabolizing 42 g/L of glucose on 68hours of incubation. Biochemical and molecular characterization of BS1 was carried out. It was identified as Clostridium beijerinckii and it shared 99% homology with strain E092 accession no JX267108.

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10

Title : A Review-Improvement of Bearing Capacity of Soft Clay by Stone Column Technique

Authors : N Ramu, P Prem Narayan

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Bearing capacity is the important factor in the construction of buildings. There are many trending methods which are used to improve the bearing capacity of soft clay. One such method is stone column technique. Now a day’s most of industries and buildings are being constructed away from city limits i.e. in the agricultural lands, ponds etc. This technique is very helpful in construction of buildings in soft clay and agricultural lands. Industrial wastes such as quarry waste, bagasse ash, silica fume are widely used. In this paper, a review of researchers about the industrial waste is being presented.

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11

Title : Study Of Influence Of Mineral Admixtures On Crushing And Buckling Load Of Columns

Authors : A.Kumar, K.Sita Hemanth

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Abstract :

Glass fibre reinforced polymer (GFRP) Rebar’s has an innovative material it’s been a potential application in construction practices due to its high tensile strength, corrosive resistance ease in its applications and relatively simple construction technique. To tap such potential, the existing body of knowledge on GFRP must be expanded to provide a proper basis for officials to add this method of construction to the provisions of the building code. This thesis aims to add to that body of knowledge through experimental investigation on performance of Glass fibre reinforced rebars in compression members. Load carrying capacities of long and short columns reinforced longitudinally with glass fibre reinforced polymer rebar and laterally with steel rebar’s were compared with steel reinforcement. in this research. Test series consisted of 6 columns having 150 Ø mm diameter and 2000 mm in length of 3 long columns, and 660 mm length of 3 short columns The main study in this program is on replacing the longitudinal reinforcement partially with GFRP rebars and cement replaced by 20% with ground granulated blast furnace slag(GGBS). Comparing such differently reinforced column with fully steel reinforced and GFRP reinforced columns. Load carrying capacities and failure behaviours of columns were observed by experimental investigation and compared with theoretical values. And the circular column behaviour analysed with help of P-M interaction diagrams. Ductility Factor also find out for short columns. From the obtained results, it is observed that the replacement in longitudinal reinforcement partially with GFRP rebars in short & long columns show the higher load carrying capacities. And the failure of the column is changed for both the short &long columns.

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12

Title : Weapon Selection Problem With AHP And Topsis Methods In Multi Criteria Decision Making

Authors : Muhammed Furkan Karaburun, Kemal Alaykiran

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It is obvious that the people in the security sector are at more risk than other individuals in different job disciplines in society due to their working conditions. For this reason, it is expected that individuals working in the security sector to choose a weapon to be suitable for the field of use as a decision maker. In recent years, Multiple Criteria Decision Making (MCDM) has been a field of interest where researchers have been increasingly studying on due to its simplicity, ease to understand, and also ease of implementation. MCDM methods also help the decision maker to choose the best alternative by evaluating conflicting criteria. In this study, a solution proposal is presented to decision makers using AHP (Analytic Hierarchy Process) and TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) method. First of all, criteria and alternatives are obtained using the fishbone diagram at the end of the wide participation brainstorming meetings with individuals working in the security sector. The criteria weight values are calculated by the AHP method, then alternatives are ranked by using the TOPSIS method. It is considered that the findings obtained through the study will contribute to the decision makers to be more careful in selecting weapons, especially against the hazards arising from machine and human errors. In addition, the findings obtained from this study are considered to contribute positively to management and production processes in order to obtain better quality products by the companies operating in the arms sector.

48-52
13

Title : Positive Solutions of Periodic Boundary Value Problems for a Class of Second-order Ordinary Differential Equations

Authors : Hongliang Kang

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In this paper, we consider the existence of positive solutions to the second-order periodic boundary value problems. 

53-55
14

Title : Constructing a Linearly Combined Similarity Measure with High Accuracy for Assessing the Similarity between Linguistic Items

Authors : Xiaolan Cui, Shuqin Cai, Yuchu Qin

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Selecting local similarity measures and weighting their contributions to construct a linearly combined similarity measure with high accuracy is a key problem in assessing the similarity between linguistic items. Focusing on this problem, a number of approaches have been presented during the past few decades. Each approach can construct a linearly combined measure with high accuracy in its specific case. However, constructing such a measure for arbitrary cases remains a challenge. In this paper, an approach for constructing different linearly combined measures with high accuracy in different cases is proposed. This approach uses the Pearson correlation coefficient between the computed and judged similarities to quantify the accuracy of a linearly combined measure. For different cases, different local measures are selected and different weights are assigned by maximizing this coefficient. Thus the approach can ensure high accuracy in arbitrary cases. The effectiveness of the approach is theoretically proved and a set of experiments are carried out to verify the result of this proof. The proof and experiment results show that the linearly combined measure constructed by the approach has high accuracy and the weight assignment and local measure selection ways are helpful to improve the accuracy of the linearly combined measure.

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15

Title : Determination of Outdoor Radon Concentrations at Madenat Al-Elem University College using CR-39 detector

Authors : Shaker M.M.Al-Jobori, Khalid H.Mahdi, Wasof O.Hatab, Haziml.Mansour

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In the present work , radon gas concentration ,effectiveradium content  and both area (surface ) and mass exhalation rates in soil samples collected from different locations in Madenat Al-Elem have been measured using CR-39 track detectors . Values of the average radon gas concentration were found to vary from (25.370 Bq /m3 ) to ( 40.580 Bq / m3 ) . Radium equivalent content values were found to vary from ( 10.186 Bq / kg ) to ( 16.293 Bq / kg ).Area ( surface ) exhalation rate values were found to vary from ( 0.439 Bq/ m h ) to ( 0.700 Bq/m h) . Mass exhalation rate values were found to vary from ( 0.017Bq/ kg h ) to ( 0.027Bq/kg h). All the results obtained in the present work were found to be less than their corresponding world limits .Thus, the present results have revealed that , radon gas concentration , radium equivalent content and both area and mass exhalation rates in the studied area do not pose risk to human health. 

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16

Title : A Washout Filter Aided Design for the Stabilizing Control of Electric Power Systems

Authors : Der-Cherng Liaw, Yun-Hua Huang

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A feedback stabilizing control law is proposed in this paper for the electric power systems to delay and/or eliminate the appearance of the so-called “voltage collapse.” The phenomenon of voltage collapse is known to be possibly attributed to the occurrence of the saddle-node bifurcation or Andronov-Hopf bifurcation. Based on a previous study (Liaw et al, 2005), in this study a washout filter aided linear stabilizing control law is designed for the power systems to delay and/or eliminate the appearance of the bifurcation phenomena. Numerical simulations demonstrate the success of preventing the occurrence of voltage collapse by the proposed schemes.

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