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Planning and Scheduling of a School Building by using CPM Network Technique
Shivam Mittal ; R. K. Sharma; Pravendra Yadav
Civil Engineering
Year: 2016, Volume:3, Issue : 4
Pages: 61 - 65
A building should be planned to make it comfortable, economical and to meet all the requirements. The attempt of the planner should be to attain maximum convenience with the limited money available. Functional utility, cost, habits, taste, requirements, etc., should be considered by the planner. Circulation area should be minimum possible without affecting other requirements and convenience. To start with, all the requirements should be collected and then planning should be taken up and a number of alternative proposals are prepared and comparing their advantages and disadvantages, the best one should be adopted. The engineer and architect shall have to satisfy the owner, for which a number of sitting will be required to finalize the plan. By Scheduling, we assign a particular time for completing a particular job. The main objective of scheduling is to arrive at a position where we will get minimum processing time. The basic principles and mechanics of network technique (CPM/PERT) is the application of planning, analyzing and scheduling and controlling of event and activities involved in a project in relation to time and interdependence of each activity. Therefore, this paper aims at planning and scheduling of a school building by using network technique.
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Water Quality Index in Four Sites of the Cherlapally Lake, Telangana State
R. Amrutha kalyani ; Prof. S. Gangadhar Rao; B. Nageshwarao; B. Thirupathi
Environmental Sciences
Year: 2016, Volume:3, Issue : 4
Pages: 66 - 73
The research study was conducted in the water samples collected from, Cherlapally Lake, Cherlapally village, Ranga Reddy district, Telangana state, India. The water quality index was studied in four sites of the Cherlapally Lake and reported during the year 2013. The following physical- chemical parameters like pH, Temperature, Turbidity, BOD, DO, Coli-form, Nitrates, Phosphates, Total solids were analyzed and compared between the WQI ratings. The parameters like BOD, DO, Coli-form bacteria were rating from 0-25, which was considered highly polluted lake. According to the water quality standards the lake is coming under bad quality and unfit for drinking purpose.
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Performance Assessment of High-Rise Building using Diagrid
Hrdya Menon ; Paul Jose
Civil Engineering
Year: 2016, Volume:3, Issue : 4
Pages: 74 - 77
In recent trends, the construction development has been rapidly increasing towards tall building structures. Recently different structural system like braced tube structure, space truss, diagrid structural system etc. are adopted in tall buildings due to its structural efficiency and flexibility in architectural planning. Diagrid is a particular form of space truss. It consists of a perimeter grid made up of a series of triangulated truss system. Diagrid is formed by intersecting the diagonal and horizontal components. Due to inclined columns lateral loads are resisted by axial action of the diagonal in diagrid structure compared to bending of vertical columns in conventional buildings. Generally for tall building diagrid structure steel is used. Analysis and design of 30 RC building with steel is presented. A regular floor plan of 36 x36 m size is considered. ETABS software is used for modeling and analysis of structural members. All structural members are designed as per IS 456:2000 and IS 800:2007 considering all load combinations. Later the optimum angle for a 30 storey RC building with steel diagrid is found out.
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Hybrid Five-Level Inverter using Switched Capacitor Unit
Minu M Sageer ; Rabiya Rasheed
Electrical and Electronics Engineering
Year: 2016, Volume:3, Issue : 4
Pages: 78 - 85
A multilevel inverter is a power conversion device that produces an output voltage in the desired levels by using DC voltage sources at the input. The number of DC voltages and switches increases with number of output voltage levels for the conventional topologies. This is the main drawback of the conventional topologies. Here a new multilevel inverter is presented, which uses switched capacitor units. The switched capacitor multi-level inverter can produce the desired output voltage and also can boost the input voltage without any bulky transformer. Also, the number of switches and DC voltage sources are reduced in this topology. This reduces the size and cost of the inverter. This topology uses series and parallel combination of the basic unit to produce higher level output voltage. In this paper the operation and simulation results of a hybrid five-level inverter is presented using MATLAB/Simulink software. Multilevel inverters have their many applications in renewable energy systems. This new multilevel inverter using switched capacitor units can also be used for renewable energy applications.
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A Clinical Audit on the Compliance with the Innovated Manual Processing X-Ray Film Technique using Darkroom
Regidor 111 Dioso ; Raditya Faradina
Applied Science
Year: 2016, Volume:3, Issue : 4
Pages: 86 - 89
This clinical audit identified darkroom users’ compliance with the innovated manual processing film technique and evaluated it’s effectiveness in decreasing risks of repeating unnecessary x-ray shooting. The steps in the standard operating procedures of radiography, good manual processing film technique, practical protection measures and manual processing film practice in darkroom were audited. Twenty-eight participants were randomly selected. The demographic distribution is divided into, gender, semester and practice experience. Generally, of the 28 students, there were 18 who complied (64.3%) than those who did not comply (10 or 35.7%). Compliance rate was more likely probable (p=0.04) than that of the non-compliance (p=0.157). The factors affecting quality of film processing that was done by the students included film positioning technique, exposure technique, processing film technique, and film exposure to light.
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Preparation and Characterization of Clay based Nanocomposites
B. Sreelatha ; B. Praveen Kumar
Mechanical Engineering
Year: 2016, Volume:3, Issue : 4
Pages: 90 - 93
The incorporation of fillers into a hybrid composite matrix has shown tremendous increase in longevity and achieving the desired mix of tribological properties in dry sliding. The sliding wear performance of hybrid composites filled with clay particles was studied in this paper. For this study, clay nano particles were synthesized by solution combustion process and size was found to be 54 nm from X-ray Diffraction (XRD). Hybrid nano composite were synthesized by Clay nano particles and resin with hardeners like (HY951) with appropriate amounts like 1 wt%, 2wt% and 3 wt% of clay nano particles. The wear performances were studied by using pin-on-disc wear testing machine.
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Uninterrupted Green Power using Floating Solar PV with Pumped Hydro Energy Storage & Hydroelectric in India
Aseem Kumar Sharma ; D. P. Kothari
Renewable Energy
Year: 2016, Volume:3, Issue : 4
Pages: 94 - 99
The 100 GW Solar capacity by 2022 is a target which is being aggressively pursued by India. However, the intermittent nature of Solar PV makes it essential that adequate energy storage capacity is created to ensure uninterrupted power for consumers from renewable sources. Pumped Hydro Energy Storage (PHES) is a dominant form of energy storage being used since long by utilities. This paper aims at combining FSPV with PHES & Hydroelectric to try & create a model for a source of Uninterrupted Green Power. It attempts to estimate the potential of this model in large reservoirs in India. It also discusses the advantages, challenges & environmental impact related to the concept. It estimates that Uninterrupted Green Power Supply of 13GW round the year can be obtained from the mentioned reservoirs using FSPV+PHES & Hydroelectric. The reduction in evaporation loss is expected to be 1692 MCM per year in these reservoirs. This involves installation of around 60 GWp of FSPV & 30GW of PHES capacity.
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Paper on Friction Stir Welding on Magnesium Alloys - A Review
V. Prasanna ; K. Sharath
Mechanical Engineering
Year: 2016, Volume:3, Issue : 4
Pages: 100 - 102
The modern technologies are gaining more and more importance in almost every field and Manufacturing industry not an exception. More and more research has been going on related to welding techniques [1]. Friction stir welding is one of the latest welding techniques that have found a major part in automotive sector. Magnesium alloy one of the major raw material used in these industries due to its light weight, good thermal conductivity, excellent specific strength and stiffness, exceptional dimensional stability, high damping capacity, and high recycle ability [2]. Magnesium alloys can be divided into cast magnesium alloys and wrought magnesium ones in terms of difference in processing [3]. Main commercial magnesium alloys include the AZ series (Mg-Al-Zl), AM series (Mg-Al-Mn), AE series (Mg-Al-RE), EZ series (Mg-RE-Zn), ZK series (Mg-Zn—Zr), and WE series (Mg-RE-Zr)[4]. It is thi property which entices automobile manufacturers to replace denser materials, not only steels, cast irons and copper base alloys but even aluminium alloys by magnesium based alloys. Statistically, more than 90% of the magnesium alloy structural components are produced by casting process, especially by various die-casting processes. .Magnesium has a density two-thirds that of aluminium and only slightly higher than of fibre-reinforced plastics and possesses excellent mechanical and physical properties. Compared to using alternative materials, using Mg alloys results in a 22% to 70% weight reduction. Recent developments in coating and alloying of Mg improved the creep and corrosion resistance properties of magnesium alloys for elevated temperatures and corrosive environments. The introduction of this paper gives a detailed review about Friction Stir Welding of Mg alloys. This review work may be a ready reference for subsequent researchers.
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Comparison of Geotechnical Engineering Properties of Black Cotton Soil by Adding Lime and Sugarcane Straw Ash
Rahul Jatav ; Prof. A.K. Singhai
Geo Technical Engineering
Year: 2016, Volume:3, Issue : 4
Pages: 103 - 105
Black cotton soil or expansive soil covers almost more than 20% of Indian geographical area. Madhya Pradesh has approximately 44% area under this category. This soil has peculiarity of good fertility with respect to grains but poor for construction activities. In this study the results of laboratory investigation on the use of Lime and Sugarcane Straw Ash with this soil are compared for different engineering properties. Black cotton soil mixed with Lime and Sugarcane straw ash (SCSA) in different proportion and its effects are compared for different geotechnical properties. It is observed that when Lime is added to this soil, significant variation in Optimum Moisture Content (OMC) increased from 19.50% to 23.50% and Maximum Dry Density increased from 1.63g/cc to 1.80g/cc. The soaked CBR also increase from 2.22% to 9.72%. Also observed that in case of Sugarcane Straw Ash (SCSA) significant variation in Optimum Moisture Content (OMC) increased from 19.50% to 19.62% and Maximum Dry Density increased from 1.63g/cc to 1.82g/cc. The soaked CBR also increased from 2.22% to 4.90%.
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Superior Electrochromic Performance of Tungsten Oxide Embedded with Polypyrrole
Miss. Nilam Yashwant Bhosale ; Dr. Anamika V. Kadam
Physics
Year: 2016, Volume:3, Issue : 4
Pages: 106 - 110
The electrochromic (EC) properties of inorganic-organic hybrids of tungsten oxide/polypyrrole (WO3/PPy) thin films were analyzed. Using electrodeposition, WO3 was coated on a conducting glass substrate (Indium doped tin oxide), followed by thermal treatment. In sequence, the PPy thin film was deposited using chemical bath deposition. The structural, morphological, optical, and EC responses of WO3, PPy, and WO3/PPy films are described. The EC properties indicates considerable enhancement in redox kinetics (response time) and coloration efficiency of WO3/PPy films compared with those of the solitary WO3 and PPy films, with a significant increase in EC stability.
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Abstract
