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Volume 4 Issue 11 (November 2017)

S.No. Title & Authors Page No View
1

Title : Connecting Social Network with Smart Education: A Microblog-Based Experimental System

Authors : Jie Zhao, Chen Chen

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In this paper, we propose a microblog-based experimental system for enhancing smart education. In the age of social network, smart education lacks effective platform to help students practice social-network-oriented tasks, such as information pre-processing and information extraction. For this purpose, we develop a microblog-based experimental system that offers many functions to process microblog information, including microblog crawling, microblog pre-processing, and event detection from microblogs. In particular, we implement a number of state-of-the-art models and algorithms in the system, which enable students to learn existing technologies related to social-network information processing more effectively. After a brief introduction on the system framework, we present the experimental results of microblog-based event detection. Finally, we discuss the impact of our system on smart education.

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2

Title : A generalized approach of form error evaluation for sculptured surface within the framework of the new generation GPS standards system

Authors : Heping Peng

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Abstract :

The form error is an important index used to evaluate the form precision of parts; the accuracy of its evaluation method has a significant influence on the quality and use performance of a mechanical product. With the development of modern measuring techniques, especially the coordinate measuring machines (CMM) and other precision measuring instruments have already been applied to practical production extensively, it has important practical meaning to study sculptured surface form error evaluation method based on the coordinate measuring data. In view of this current situation, based on the related principle of the form error evaluation within the framework of the new generation GPS standards system, a generalized mathematical model of form errors evaluation based on the least square method is proposed in this paper, and then the way of solving the evaluation model by using multiple nonlinear optimization function in MATLAB optimization toolbox is also studied. Finally, a numerical example based on the actual measurement data obtained by CMM is given to verify the evaluation model.

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3

Title : Assessment of Impacts Paper Industrial Effluent on ground water quality

Authors : D.Rama Rao, P.V.S. Machiraju, V. Siddaiah, Y.L.N. Murthy

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Water is an essential component for the survival of the eco systems and all the living organisms on the earth. Due to agricultural activities, rapid industrialization and growth in urban population, the water sources are being contaminated by anthropogenic activities. Keeping  in view the rapid industrialization in East Godavari region, it is proposed to characterize the effluent water generated from the paper industry and ground water collected from the surrounding areas of the industry to assess  the impact of paper industrial effluent  on ground water quality .The present work is focused on characterization of effluent and ground water collected  physiological  parameters viz.,pH, EC,TDS,TH, TA, Chloride, Sulphate, Nitrate,  Phosphate, Na, K,Ca,Mg for assessing the chemical contamination of water. Irrigation parameters like, Percent sodium, SAR, RSC, KR and MH are determined to verify the suitability of water for irrigation purposes. Further the  waters are characterized for metal ions like Li,Be,Al,V,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Se,Rb,Sr,Ag, Cd, Cs, Ba,Pb to assess the metal toxicity. The waters are also characterized for Microbial species. The research results revealed that higher values of TDS, TA and TH in some water samples indicate the presence of soluble solids and alkalinity of water. Higher values of TH in some samples indicate the encrustation nature of waters which make the waters unsuitable for drinking and domestic purposes. Presence of pathogenic bacteria like E.coli, Enterobacter, Pseudomonas, Klebsiella and Basillus indicate the microbial contamination of water and hence these waters can cause waterborne diseases, if consumed for drinking  purposes. It is suggested that these waters are to be treated by using the available treatment methods to remove the chemical contamination and to subject the waters for disinfection methods to remove the microbial contamination befour use for drinking or domestic purposes.

11-19
4

Title : Factors Influencing Job Satisfaction and Retention: English Medium School in Bangladesh

Authors : Mohitul Ameen Ahmed Mustafi, Farhana Mitu, Tarana Azmi, Mohammed Jahirul Islam

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The objective of the study is to investigate the factors that influence teacher perceptions on job satisfaction and retention of English Medium School. The data has been taken mainly from primary sources. This study has been conducted on 200 respondents, with structured questionnaire, who have continued their job in different English medium schools in Dhaka city of Bangladesh. For collecting data, the simple random sampling method has been used. For analyzing and testing data and reliability, multivariate analysis techniques like factor analysis and Structural Equation Modeling (SEM) have been used. Descriptive statistics has been used for explaining the demographic characteristics of the respondents. By using SEM, the results show that the job satisfaction factors like the availability of the resources, decision making role, students’ behavior, workload are the influential factors on retention in English medium school teachers of Bangladesh. This study suggests that in the education sector like English medium school of Bangladesh the policy makers and concerned authorities should focus more on the factors like availability of the resources, decision making role, workload, student’s behavior for better improvement of their institution.

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5

Title : Comparaison des proprietes chimiques de lhuile et tourteaux darachide et de noix de cajou vendus sur les marches de Daloa, Cote dIvoire

Authors : Diomande Masse, Kouame Kan Benjamin, Koko Anauma Casimir

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The objective of this study is to evaluate and compare the physico-chemical properties of peanut and cashew nut oils and cakes sold in the Daloa markets with a view to identifying their appropriate uses in nutrition and food technology. The seeds and nuts were shelled, dried, crushed and pressed to separate the oil from the cake. The chemical parameters of the sample oils were evaluated by thiosulphate (for peroxide index), hydrochloric acid (for saponification index), and sodium hydroxide (for acidity) assays. The moisture, protein, ash, carbohydrate content of groundnut cake and cashew nuts were determined using the AOAC method (1995). The energy value is calculated using the specific coefficients of Atwater and Benedicte (1902) for proteins, lipids and carbohydrates. The results show that the fat yields of peanut seeds (28.26 ± 0.08 g / 100gMS) are substantially identical to those of cashew (29.37 ± 0.06 g / 100gMS). It is the same for their cakes (71.74 ± 0.21 g / 100gMS against 70.63 ± 0.05 g / 100gMS). The peroxide value of the ARA oil (7.87 ± 0.15) is twice as high as that of the CAJ oil (3.16 ± 0.31). The saponification value of the ARA oil (173.98 ± 0.6) is also higher than that of the CAJ oil (167 ± 1.86). On the other hand, the total acidity of the oil is high for CAJ (1.62 ± 0.01 meq / 100g) and low for ARA (1.25 ± 0.20 meq / 100g). The chemical characterization of the cake shows that that of CAJ (3.95 ± 0.01g / 100gMS) is richer in moisture than that of ARA (3.95 ± 0.01g / 100gMS). On the other hand TX ARA (47 ± 0.01g / 100gMS) is richer in protein than that of TX CAJ (44.21 ± 0.1g / 100gMS). The fat contents (31.14 ± 0.10 g / 100gMS against 31.91 ± 0.09 g / 100gMS), in ash (3.57 ± 0.04 g / 100gMS against 3.57 ± 0.02 g / 100gMS) and carbohydrates (15.48 ± 1.7g / 100gMS versus 16.35 ± 0.10g / 100gMS) are identical for TX ARA and TX CAJ. It is the same for the energy value (530.23 ± 0.6 Kcal / 100g) against 529.51 ± 0.56 Kcal / 100g). TX ARA and TX CAJ cakes could contribute to the fight against protein-energy diseases, and also be used in livestock feed because of their high protein and energy content and minerals.

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6

Title : Nutrition in Rheumatoid Arthritis

Authors : Kourkouta L., Theodoridis X., Iliadis C., Ziogou T.

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Rheumatoid arthritis (RA) is a systemic inflammatory autoimmune disease of unknown etiology, resulting in the progressive destruction of cartilage and bone resulting in structural destruction and functional impotence Purpose: The purpose of this work is to highlight the contribution of diet to rheumatoid arthritis. Methodology: The material in the study was articles on the subject that were found mainly in electronic databases such as Medline, PubMed, Google Scholar, and the Hellenic Academic Libraries Association (HEAL-Link). Results: Nutrition can play an important role in preventing the onset of the disease as it is directly related to improving bone mass and maintaining bone and joints. Of particular importance are the contribution of various nutrients, vitamins and antioxidants to reducing the risk of fractures, inflammation and pain and energy consumption. Conclusions: Proper information of patients on the disease and the available therapeutic methods can make a significant contribution to their activation and activation for participation in various therapies that will contribute significantly to the control of the disease with as few consequences as possible.

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7

Title : Using Virtual Instrument in Teaching Automatic Measurement Technology Course

Authors : Kai-chao Yao, Wei-Tzer Huang, Li-Chiou Hsu

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The use of an automatic measurement technology is highly important in current industries. The technology has been sued in various applications such as environment monitoring, quality control of production line, and medical disease analysis. Automatic measurement technology requires programming, facilities integration, control application, function innovation, and maintenance technology. Developing suitable teaching equipment that can satisfy the demand of industry-orientation Automatic Measurement Technology Course (AMTC) is a challenge. In this study, a virtual instrument is introduced to solve the problem. LabVIEW, which is utilized to design virtual instruments, provides powerful functions for instrument control and measurement. Therefore, in this proposed AMTC, a  LabVIEW-based virtual instrument system is established as teaching equipment for undergraduate students in colleges of engineering or technology.

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8

Title : Prototype Development of a Dimensional Model of Data Warehouse for the Engineering Education Information System in West Bengal, India

Authors : Abhijit Pramanik, Somsubhra Gupta

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An attempt had been made to develop a prototype dimensional model of data warehouse for the Engineering Education Information System in West Bengal, India using Kimball’s methodology. A bus matrix has been established using fact tables and some selected dimension table. Depending on this a prototype of dimensional model based on the engineering education system has been established. Validation and testing also be adopted. This model may provide subject oriented data support for query servicing in order to smooth the progress of educational activities.

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9

Title : MIMO-OFDM System with ZF and MMSE Detection Based On Single RF Using Convolutional Code

Authors : Djoko Santoso, I Gede Puja Astawa, Amang Sudarsono

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MIMO-OFDM system with detectors Zero Forcing (ZF) and Minimum Mean Square Error (MMSE) is used to eliminate fading and using convolutional code that can help the performance of channel coding in order to work optimally. This coding technique is expected to generate a low BER curves. MIMO-OFDM based on single Radio frequency (RF) has the function to efficiency power consumption. In a previous study discusses the performance of MIMO-OFDM system based on single RF, the result that a single RF antenna symbol rate may change periodically and does not require a high power consumption. Computer simulation results shows that channel estimation in MIMO-OFDM system based on single RF working properly shown by the curve magnitude and phase,  showing the performance of MIMO-OFDM system based on single RF with some parameters such as detectors, modulation, convolution code on the curve BER on the SNR.

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10

Title : Fourier Descriptor Based Static Sign Language Recognition

Authors : Yong HU, Wei-yan SHEN, Wei ZHENG

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Sign language recognition is an important and challenging research area in the field of human-computer interaction. The work presented in this paper aims at developing a robust system for automatic translation of static gestures of alphabets. The proposed methods used the Support Vector Machine classifier and features extracted from a novel signature, Inner-Centroid Distance. In the experiments, a comparison between the proposed methods and Zernike moments is performed by using a public sign database. Experiments show that the proposed approach is effective and simple to implement.

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11

Title : The Effect of Drilling and Charging Design on Cost of Blasting in Some Selected Rocks in Nigeria

Authors : Saliu M. A., Ajaka E.O., Ohere S. A.

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This research investigates the effects of drilling and charging specifications on blasting cost in three selected rocks; granite, limestone and marble in Nigeria. In order to achieve this, the three rock types were characterized to determine some rock properties; uniaxial compressive strength, point load strength, Schmidt hardness and unit weight. Drilling and charging design parameters; burden, spacing, blasthole diameter, blasthole depth, stemming height, and specific charge were obtained by blast design variations using Langerford model. The cost of blasting was estimated from all input parameters; cost of explosives and explosives accessories, drill tools and accessories, and costs of other related items and activities. Sensitivity analysis was performed by selecting combination of controllable and uncontrollable (design and rock) factors over a range of value to determine the variation of cost with drilling and charging specifications for each of the selected rock types. The results obtained show that hole diameter increase with corresponding increase in blasting cost and no significant change in the drilling cost for all the three rock types. Also, increase in bench height brings about a corresponding increase in both drilling and blasting cost. Increase in burden or spacing decreases the number of holes to be drilled and consequently the amount of explosives needed for the blast. The optimum cost for granite, marble and limestone are; ₦15,000,000, ₦10,000,000 and ₦8,000,000 respectively.  It can then be observed that the optimum drilling and blasting cost is dependent on the strength properties of a rock to be blasted and that the higher the strength of the rock, the higher the optimum cost required to achieve desired fragmentation. The research shows that optimum cost analysis is an important parameter required to find a common ground between optimum costs and desired fragmentation.

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12

Title : Effects of Weathering on some Physical and Mechanical Properties of Ewekoro Limestone, South-western Nigeria

Authors : Ogunsola N. O., Olaleye B.M., Saliu M. A.

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The study is on the investigation of the effects of weathering on physical and mechanical properties of Ewekoro limestone, south-western Nigeria with the aim to establish the strength of the rock samples for design and engineering purposes. In order to achieve the set objectives, twenty representative samples were collected from each of the study area representing particular group of unweathered, slightly weathered, moderately weathered and highly weathered rocks using the field study indicators of colour, texture and friability, and International Society for Rock Mechanics (ISRM) classifications for the laboratory determination of physical and mechanical properties of the selected rocks.  Thin sections were prepared for textural and mineralogical studies of the unweathered and weathered samples of the two rock types. The chemical composition analyses of the samples were done using X-ray Fluorescence spectrometry (XRF).The physico-mechanical variations with progressive weathering grades were statistically evaluated using Excel and Statistical Package for Social Sciences (SPSS) and mathematical models were generated. Quantitative test results show the dry and bulk densities, dry unit weight and specific gravity decreases with an increase in weathering state while the water content, water absorption and porosity increases with an increase in weathering state. The average values of dry density decreases from 2.69 g/cm³ in unweathered samples to 2.42 g/cm³ in highly weathered samples. The average porosity values increases from 7.60 % in unweathered samples to 11.27 % in highly weathered samples. The range of mechanical properties tests results decreases with an increase in weathering state with overlap of values across the different weathering grades. The average uniaxial compressive strength and point load strength values decrease respectively from 45.13 MPa and 2.30 MPa in unweathered samples to 16.30 MPa and 1.50 MPa in highly weathered samples. Textural, mineralogical and chemical studies conducted on the unweathered and weathered samples in both rock types show that noticeable textural, mineralogical and chemical changes occur in the rock fabric as a result of increase in weathering state. The results of geochemical studies show that calcium oxide (CaO) and potassium oxide (K2O) values decrease with increasing degree of weathering respectively, with 82.32 % and 0.82 % in unweathered sample to 45.21 % and 0.45 % in highly weathered samples. Silica (SiO2) and iron oxide (Fe2O3) increase as the weathering progresses respectively with 8.43 % and 2.35 % in unweathered sample to 19.93 % and 4.30 % in highly weathered sample. The regression analysis reveals strong relationships between some of the correlated parameters incorporating weathering states. The laboratory tests conducted indicate that weathering reduces strength of the rocks which could affect slope stability and performance of these rocks in engineering applications.

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13

Title : The Model of Shoreline Change in Estuary of Porong River after Mud Volcano

Authors : Mahmud Mustain

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The basic research of this paper is to produce the result of the model of extended area or/and degradasion area in estuary of Porong river after mud volcano phenomenon. The model is the part of conception of coastal management in the sector of coastal protection. This sector is concerning to the stability of shoreline change. This is obviously the extended area from sedimentation or/and degradasion area due to erosion processes in coastal vicinity.  It means stable from the sedimentation and/or erosion processes that may not be wanted. This research is to create the model of shoreline change, based on the previous years to the recent condition, and then to estimate the feature condition.  This model based on the conception of longshore transport (lonsgshore current) in the certain location of estuary of Porong river. The model works on the two stages.  (1). Using data of  year 2000 for initial condition, the model produced three difference results for next 14 years from three difference sediment transport formulations.  This is to find the most apropriate result when to be compared to the existing data of 2014 among those formulatios. The formulation of Komar-Inman [6] is the best one due to getting result that have the smallest error of   7 % to the existing data 2014.  (2). By using data of  year 2014 as initial condition, the model have produced the  estimation of shoreline change for the next period of; 5, 10, 15 and 20 years. After 20 years implementation, the model gives result  of extended land area to the offshore direction in around of 1000 meters. The accuration of the result is depend on the accuration of Komar-Inman [6] formulation in the transport sediment conception.

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14

Title : Translucent Coatings of Modern Construction Systems

Authors : Abramyan S.G.

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It is impossible to imagine modern-time cities without construction systems with translucent insulation coatings. Translucent-coated structures not only ornate any building, but also serve as a life-supporting element. Considering this, the author, based on the review of foreign and national publications, describes the main trends in the application of translucent coatings for engineering and construction of long-span, high-rise and unique buildings. Over the past ten or twelve years, the preference in the global practice of using the above construction systems has been consistently given to polycarbonate and membrane coatings based on ETFE (ethylene tetrafluoroethylene) film. The key reasons for the high popularity of these materials are: blending the boundary between the ambient environment and the inner space of a building; utmost utilization of natural light and solar energy to ensure energy efficiency of a building and maximum comfort during its operation; creation of facilities embodying a new architectural idea involving the most recent engineering achievements; ensuring multi-functionality of a building while preserving traditions and national flavor. Following the analysis of a number of studies, the paper compares the characteristics of glass units filled with aerogel with the characteristics of conventional double and triple-pane glass units, describing their benefits and drawbacks as applied to specific climatic conditions. It is noted that some studies insufficiently explore the safety of spider systems for glazing high-rise and unique buildings in seismically active regions or exposed to hurricane winds. 

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Title : Investigation on Turbo-matching of Trim 67 Turbo-charger for a TATA Commercial Vehicle

Authors : Badal Dev Roy, Dr.R.Saravanan

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Commercial vehicles and heavy vehicles require boosting of charge specifically at higher load. The turbocharger is such charge booster for automobile engines. Selection and matching are needed more attention and care. Because the mismatch of turbo charger for the desired engine may lead to disadvantages like surge and choke at engine air flow. Test based matching is adopted in this research. The initial matching performance is identified by the simulation method. The data-logger type matching method is used for confirming or validating the performance of matching. The objective of this research is to find the appropriateness of matching of B60J67 Turbo Charger for the TATA 497 TCIC -BS III engine. The compressor map is used for evaluating the solutions yielded both methods. The appropriateness was evaluated at various route conditions and presented.

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16

Title : Hydrogeological Characterization of Hard Rock Aquifers in Tropical West Africa Based on Borehole Data: Case of Man Area (West of Ivory Coast)

Authors : Koffi Theodore YAO, Franck M. GNAMBA, Koffi Blaise YAO, Moussa OUATTARA

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This study was carried out aims to characterize the fractured aquifers by highlighting the level of alteration and to establish the possible links between the boreholes parameters and aquifers productivity in the region. Elementary and multi-varied statistical analyses performed and permitted to correlate borehole parameters with the yields. We noticed that the most productive depths are between 40 and 75 m and a portion of 5 to 30 m section of regolith offers the best flow rates. In addition, the majority of the borehole in the region is into the category of medium flow with high flow rates. The most productive groundwater discharge is located in the first 60 m under the base of regolith. Also, the most productive geological formations providing an excellent flow are the granites. The power of regolith positively influences the productivity of the structures, especially when these saprolite are saturated and permeable enough to release the water they contain in a fractured underlying layer.

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17

Title : Research on Objective Auscultation of TCM Using Wavelet Packet and Support Vector Machine

Authors : Jianjun Yan, Xiaojing Shen

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The goal of this study is to provide objective analysis and quantitative research for the auscultation in Traditional Chinese Medicine (TCM) using wavelet packet transform (WPT) and support vector machine (SVM). Based on WPT, the voice signals are decomposed into six layers wavelet coefficients. This paper proposed Shannon entropy as feature parameter extracted from wavelet packet coefficients to make analysis of health, qi-vacuity and yin-vacuity subjects. Then the feature values used as vectors were put into SVM to be trained and predicted, and the classification results showed that the overall accuracy of the health group, qi-vacuity group and yin-vacuity group reached to 80.84%. It is proved that our method is effective for auscultation research of TCM.

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18

Title : The Impact of Service Quality Dimension on Job Satisfaction of Construction Workers in Bangladesh: Structural Equation Modeling Approach

Authors : Sardar Mohammad Tauhidul Islam

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Job satisfaction is an important phenomenon at the workplace. It functions as a catalyst for the overall development of an organization. It is influenced by a number of factors like Human Relations, Workload, Supervisor’s Behavior, and Motivation etc. Job satisfaction of construction workers in Bangladesh is also very important as it is concerned with and is playing a vital role in the rapid infrastructural development of the country. As such, the purpose of this paper is identifying the factors influencing Job Satisfaction of construction workers in Bangladesh. A questionnaire survey has been conducted among the construction workers engaged in Dhaka one of the largest cities in Bangladesh. A total of 425 workers were interviewed with a structured questionnaire. Exploratory Factor Analysis (EFA) and Structural Equation Modeling (SEM) of data concerning job satisfaction of construction workers are performed to determine the empirical relationships among the different variables. SPSS and SmartPLS software have also been used for analysis and presentation of data in this study. This study has emphasized mainly on the four main factors identified through factor analysis with twenty-five dimensions which are related to job satisfaction in the construction sector of Bangladesh. From Structural Equation Model analysis it is found that only four factors such as Human Relations, Motivation, Supervisor’s Behavior and Workload are the significant factors of job satisfaction of construction workers in Bangladesh. This study suggests that in the construction sector of Bangladesh the policymakers and concerned authorities should focus more on the factors like Human Relations, Motivation, Supervisor’s Behavior and Workload.

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Title : Effect of solvent vapor annealing on TiOPc thin films and the application on hybrid solar cells

Authors : Rongbin Ye, Koji Ohta, Mamoru Baba

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This article reports on effect of solvent vapor annealing on TiOPc thin films and the application on hybrid solar cells based on ZnO/TiOPc with DH-α6T as an electron blocking layer. The band gap shows a change for the TiOPc thin film solvent vapor annealed with various solvents, which may be due to the phase transition from amorphous to α-phase, β-form or α+β-form. The phase separation could be responsible for the variations of the optical properties. No significant change is observed in the π-π* transition at various phase behaviors. Device performance of hybrid solar cells could be improved and open-circuit voltage (VOC), short-circuit current (ISC) and power conversion efficiency (η) were enhanced by solvent vapor annealing, which originated from amorphous TiOPc films transformed into crystalline α-phase, β-form or α+β-form.  At α-TiOPc, the device achieved the highest performance with VOC, ISC and η of 0.57 V, 1.40 mA/cm2, and 0.22 %, respectively, which originated from α-TiOPc with the widest red and near-IR absorption band.

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Title : Electronic Information Resources as Means of Diagnosis of the Status of Nutrition Persons of Younger Age

Authors : Natallia Bashun, Natallia Chuhai, Anastasiya Kuchar

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The objective of this paper is to find out the possibility of using electronic information resources as means of diagnosis of the status of nutrition persons of younger age.The analysis of anthropometrical and biophysical (bioimpedance) data of structure of a body and the metabolic status of student youth of University of Applied Sciences (Kaunas, Lithuania) and Yanka Kupala State University of Grodno (Grodno, Belarus) is carried out, recommendations about organization of a system of assessment of a nutritional status with development of a computer program, which based on complex of indicators are developed: personal data taking into account the level of physical activity, anthropometrical data, an assessment of nutritional status on the profile of nutrient consumption, frequency of consumption. The regularity of the development of deviations from the physiological norm in the content and ratio of fatty and lean (fat-free) mass, the specific basic metabolism, extracellular and intracellular liquid of the body composition of youth with insufficient and excess body weight, depending on the level of their physical activity and nutritional status is determined. The established imbalance of the body composition indicators by the bioimpedance analysis method allows to assess the nutritional status in the youthful age for the purpose of detecting the violations of tissue hydration and lipid metabolism. The developed information resource "Analysis of a condition of nutrition" allows you to identify deviations in the nutrition of student youth on a complex of indicators and to optimize solutions of these problems. Scientific and practical recommendations on the organization of the system of assessment of the actual nutrition, including a group of indicators (somatometric: anthropometric, bioimpedance, functional, clinical) are developed. The use of modern information technology, non-invasive procedures of a research on volunteers represents an optimal balance between traditional classical techniques and modern technologies that allow to maintain the proper quality of teaching. Active participation of students in studying of the actual nutrition and determination of parameters of a body lays the foundation for the formation of their representations and habits of proper nutrition and a healthy lifestyle.

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Title : Design Study of 500kW Fully Superconducting Synchronous Motor

Authors : K.Yun, K. Tamura, M. Iwakuma, S. Miura, S. Sato, K. Yoshida, A. Tomioka, M. Konno, T. Izumi

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The optimum structure of a 500 kW-300 rpm fully superconducting motor was studied with Re1Ba2Cu3O7- (Re: Rare Earth, Y, Gd, Eu, REBCO) superconducting tapes. The ac loss and critical current properties of recently developed REBCO tapes were actually investigated and adopted to the design and analysis. Setting the operating temperature and the magnitude of magnetic field at the gap as a parameter, various kinds of 500 kW fully superconducting motors were designed and the motor properties in each case were evaluated by numerical simulation with a two-dimensional analysis software on the market. The motor size, ac loss in the windings, iron loss and efficiency, length of required REBCO tapes and so on were evaluated and the dependences of these parameters on T and Bg were demonstrated. The ac loss induced in the armature windings was reduced by our original technique, which is composed of scribing into a multifilamentary structure and special winding of the tapes. As a result, the efficiency of the motor in the optimum case attains to 97 % in the supposition that the REBCO tape is scribed into a 10-filament structure.

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Title : A Review Analysis of Neckline Diversification for Womens Wear Industry, Factors and Overall Significance & Challenges for Bangladesh Prospect

Authors : S. M. Sudrul Amin, Farhana Akhtar Luna, Md.Mizanur Rahman

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Neckline is the top edge of a garment that surrounds the neck, especially from the front view. It is really amazing how such a small part of a garment can radically modify one’s whole appearance. Neckline is an important thing to consider when trying to look the very best. It also a great feature for adding personality. Therefore, when deciding which necklines to wear women need to be aware of several factors. Everyone notices a good or bad neckline when speaking or looking at someone. It is the focal point of women garments, which need to get right no matter what, they wear or what the occasion is.

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Title : Study of Photocatalytic activity of ZnO and TiO2 nanoparticles

Authors : Fauzia Khan, Seraj Anwar Ansari, Anees Ahmad

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Dye discharge from the textile industries are one of the major aquatic pollutant which was investigated by photocatalytic methods. ZnO and TiO2 nanoparticles are the photocatalysts for the degradation of different dyes i.e. Methylene blue, Amido black 10B, Methyl red and Rose Bengal. A comparative study of photocatalytic degradation of different dyes under solar light was monitor up to 1 hour duration. It was found that Amido Black 10 B shows 99.90 % degradation with ZnO nanoparticle while 39.65 % with TiO2. The percentage degradation for methylene blue was found to be 88.83% and 47% with ZnO and TiO2 NPs respectively. Rose Bengal shows a highest percentage of degradation of 88.8% and 62% with ZnO NPs and TiO2 NPs respectively. The percentage degradation of Methyl Red was found to be 50.5% and 3.11% with TiO2 and ZnO NPs. Comparison of result shown that ZnO nanoparticle is more efficient photocatalyst than TiO2.

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