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AN EXPERIMENTAL STUDIES ON BEHAVIOUR OF INVESTIGATING SOILS WITH VARYING SAND CONTENT
Mr. Nagaraj H. Koppa ; Prof. Santosh G. Hiremath
CIVIL ENGINEERING
Year: 2014, Volume:1, Issue : 3
Pages: 61 - 69
The behaviour of clay is affected by the content of sand particles. How and to what degree the sand content affects on shrinkage limit, compaction characteristics, stress-strain behaviour, shear parameters (angle of internal friction and cohesion) and coefficient of consolidation studied in detail. In this paper, fine grained soil like BC soil and shedi soil with different percentage of sand (10% to 60%) was prepared and compacted with water content at optimum and a systematic series of UU-Triaxial test is conducted. Results of the laboratory tests shows that at optimum content 10% to 60% of sand, the results reveal that undrained shear strength, as the sand content increases in fine soil mixture the cohesion of soil decreases with increases in frictional angle at optimum content. The percentage increased in friction angle increased at steady state from 130 to 280 and the cohesion decreased from 0.71 to 0.39 kg/cm2 with increasing sand content.
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Implementation of Optimized CORDIC Designs
Bibinu Jacob ; Reneesh Zacharia
Electronics & Communication Engineering
Year: 2014, Volume:1, Issue : 3
Pages: 70 - 80
CORDIC stands for COordinate Rotation DIgital Computer, which is likewise known as Volder's algorithm and digit-by-digit method. It is a simple and effective method to calculate many functions like trigonometric, hyperbolic, logarithmic etc. It performs complex multiplications using simple shifts and additions. It finds applications in robotics, digital signal processing, graphics, games, and animation. But, there isn't any optimized CORDIC designs for rotating vectors through specific angles. In this paper, optimization schemes and CORDIC circuits for fixed and known rotations are proposed. Finally an argument reduction technique to map larger angle to an angle less than 45 is discussed. The proposed CORDIC cells are simulated by Xilinx ISE Design Suite and shown that the proposed designs offer less latency and better device utilization than the reference CORDIC design for fixed and known angles of rotation.
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A Review:Data WareHousing, its Issues, Architecture and Tools
sandeepak bhandari ; sarabjit kaur; Jagpreet singh; Tarun sharma
computer engineering
Year: 2014, Volume:1, Issue : 3
Pages: 81 - 85
Data Warehouse can be defines as a collection of pieces of data that are subject-oriented, time-variant, integrated, and non-volatile. These also support the process of decision-making performed by management.In this paper,we present what exactly the Data warehouse is,its architecture,models,tools and techniques and at its problems and issues which need to be analyzed for a successful data warehouse project.However lot of work has been done in the field regarding design and development of data warehouse,but still lot of areas which need special attention.
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Manufacturing Competitiveness Improvement through Six Sigma ? Analysis of Readiness Level of Micro, Small and Medium Enterprises by Identification and Modelling the critical success factors
Ramadas.T
Mechanical Engineering
Year: 2014, Volume:1, Issue : 3
Pages: 86 - 89
This paper aims at implementing the quality tool six sigma at the micro, small and medium enterprises (MSME) in order to improve the manufacturing competitiveness. MSMEs are the backbones of the industrial growth within India. In this context, it is essential to analyse the MSMEs' readiness to implement the six sigma practices so as to improve their competitiveness. Readiness evaluation has been done using linear multiple regression approach using SPSS
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Exploring technological and architectural solutions for nursing home residents, care professionals and technical staff: Focus groups with professional stakeholders
Joost van Hoof ; A.M.C. Dooremalen; M.H. Wetzels; H.T.G. Weffers; E.J.M. Wouters
Architectural Engineering, Mechanical Engineering, Building Services Engineering
Year: 2014, Volume:1, Issue : 3
Pages: 90 - 105
Buildings with innovative technologies and architectural solutions are needed as a means of support for future nursing homes alongside adequate care services. This study investigated how various groups of stakeholders from healthcare and technology envision the nursing home of the future in the presumed perspective of residents, care professionals and technical staff. This qualitative study gathered data via ten simultaneous monodisciplinary focus group sessions with 95 professional stakeholders. The sessions yielded eight main themes: person and well-being; relatives and interaction; care technology; safety and security; interior design, architecture and the built environment; vision and knowledge; communication; and maintenance and operation. These themes can be used for programming future nursing homes, and for prioritising design and technological solutions. The views between the groups of stakeholders are to a large extent similar, and the personal needs of the residents are the most prominent factor for practice.
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Power Generation from Vibrations on the Sleepers beneath Railway Tracks for Railway Stations
Sajid P P Kunhabdulla ; Praveen Merala; Ashutosh Sahoo
Mechanical and Electrical
Year: 2014, Volume:1, Issue : 3
Pages: 106 - 113
A railway track undergoes mechanical vibrations when a train passes. The weight of a train rake is around 40 - 240 tons depending on the type of the train. Assuming the general weight of the train as 80 tons then it is sure that the mechanical vibrations produced are high. So, if we convert these mechanical vibrations into other forms of energy, a lot of energy would be created. Here we can use piezoelectric crystals which will be able to convert these mechanical vibrations into equivalent electrical energy. But the stress directly on the tracks is too large to be made useful for conversion by the use of the piezoelectric crystals because the maximum load that piezoelectric crystals can take is 25000 psi (available in the market). Hence, we are trying to generate electricity using the vibrations on the sleepers beneath the railway tracks because the vibrations, there are reduced and can fall in the range of the available piezoelectric crystals. The electricity thus generated will be in the form of sudden bursts as the pressure is experienced only when the train rake will pass over the plates. A continuous supply of electricity can be obtained by storing these sudden bursts of electricity in batteries and can be utilized as and when required. The frequency of train in Mumbai region is one every three minutes. There are other places with similar high frequency of trains. Such places will be highly benefitted by this concept. Massive wastage of power takes place at railway stations due to continuous and sometimes unnecessary usage of electrical appliances. The power thus generated can be used at nearby railway stations thereby saving precious energy, eliminating transmission losses and saving money as the power is now generated at a cheaper rate. This power generated by this concept can also be used at farms near railway tracks. The power thus generated is pollution free. The future scope of the concept is that we can implement helical coil springs in between the Crystals to generate double the amount of power as previous.
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PHYSIO-CHEMICAL ANALYSIS OF WASTE WATER USING SURFACTANT ASSEMBLIES
Mrs.Pratibha S.Kurup ; DR.Supriya Biswas
ENVIRONMENTAL SCIENCE
Year: 2014, Volume:1, Issue : 3
Pages: 114 - 122
This paper presents the effect of surfactant on the physiochemical analysis of waste water. Eight different locations were selected for the study and compared. The parameters studied were pH, total alkalinity, total hardness, total dissolved solids, conductivity, Acidity, free carbon dioxide, metal analyzed are Calcium, Magnesium, Copper , Nickel , Iron. From overall analysis, it was observed that the physico-chemical parameters of the waste water samples studied with the addition of surfactant showed remarkable changes. Metal analysis showed reduction in data which clearly shows that metal formed complexes with surfactant assemblies and surfactants can be used for metal detection.Corelation analysis was also carried out.
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Energy Efficient Compressed Air Production System
Ms. Snehal Bhende ; Dr. Shubhada Muley
Electrical Engineering
Year: 2014, Volume:1, Issue : 3
Pages: 123 - 128
Compressed air is often referred to as the fourth utility. We all know the generation of compressed air consumes energy but at the same time the compressor and downstream components are often neglected, which means there are significant savings to be made. It is suggested that savings of around 33 % on average in a compressed air system are possible. It follows that cost effective compressed air production is energy efficient compressed air production, as energy is by far the biggest lifetime cost factor.Many of the different levers for cost reduction may be known, but just not applied, due to lack of knowledge about the financial savings possible. This paper shows and explains the different ways to efficient compressed air production (leakages, compressor selection, pressure losses) and gives simple calculation examples that are easy to follow and to be reproduced in your compressed air stations.
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Diversity of exotic fishes and their ecological importance in Southwestern part of Bangladesh.
Bidhan Chandra Biswas ; Ashis Kumar Panigrahi
Science( Fisheries and Aquaculture,Zoology)
Year: 2014, Volume:1, Issue : 3
Pages: 129 - 131
Survey was conducted in different water bodies of Jhenidah district situated in south western part of Bangladesh. 15 species of exotic fishes were identified during the study period from 2012 May to June 2013 Oreochromis mossambicus,.Hypothelmix molitrix and Pangasius were the most dominance species among all exotic fishes .Attempts were made to estimate the diversity of exotic fishes and their role in the ecology of the water bodies as a means of successful aquaculture practices.
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