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Vibrant Energy based Spray and Wait Routing Scheme in Delay Tolerant Network
Nishaben Navinchandra Patel ; Chaita Jani
Computer Engineering
Year: 2014, Volume:1, Issue : 7
Pages: 54 - 58
The Delay Tolerant Network is an Emerging Disruption Network, which usually deals with communications in extreme challenged environments. There is not any end to end path between source and destination means there may not any direct path exist between them even if they communicate with each other because of mobility of nodes and store-carry and forward scheme. Many routing protocols used in DTNs which follow Store, Carry and Forward paradigm and transfer data among disconnected network. To improve delivery ratio, Average delay and overhead ratio in DTNs, this paper used Probability based Spray & Wait Protocol. This paper calculates the probability of the next relay node and utilizes the information about vibrancy of node and remaining energy to allocate the number of copies to the next relay node in the spray phase.
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Optimization & Finite element Analysis of Single Joint Universal Coupling in Automobile Truck
DHWANI SANGHANI ; MR. N.D.GOSVAMI
Mechanical Engineering
Year: 2014, Volume:1, Issue : 7
Pages: 59 - 62
Universal joint in a rigid rod that allows the rod to bend in any direction, and is commonly used in shafts that transmit rotary motion. Due to pin (fork) wear occurs, at the mating surface of the universal coupling. It becomes noisy when rotate at high speed. Our main aim is to replace traditional single joint universal coupling with modern one which having a high strength to withstand desired motion, reduce weight& cost and saving time during assembly of components. It is used in Automobile industry, Food packing machinery, pharma machinery and heavy machinery where Power Torque is to be transmitted between misalign axis.
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A clinical audit on the compliance on hand washing laboratory in a private university in peninsular Malaysia
Regidor III Dioso ; Vitalis Ronald Eden; Lianah Samporna; Mashood Ahmad Shah
Applied Sciences
Year: 2014, Volume:1, Issue : 7
Pages: 63 - 71
Objectives: (1) Identify allied health laboratory users' compliance with hand washing and (2) evaluate effectiveness of hand washing in decreasing the spread of microorganisms found in the hands of laboratory users. Methods: The use of the bacteriostatic liquid soap in a pump dispenser, tap water that are elbow or knee operated, nail brushes to clean the fingers and nails, air dryers or paper towels thrown on waste bins after hand washing and the seven ways of hand washing were audited. Fifty participants were observed in secret. The participants included in the audit are students and laboratory instructors. The participants' washed hands were cultured immediately for the presence of microorganisms. The demographic distribution is divided into age, gender and nationality. Results: Generally, of the 50, there were more participants who complied (28 or 56%) than those who did not comply (22 or 44%) with hand washing laboratory. There were more males who complied than female and there were more Malaysians who complied than non-Malaysians. Cultured results showed that hand washing were effective in decreasing microorganism spread found in the hands of the allied health laboratory users.
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A Review paper on Erosion and Corrosion behavior of Coal combustion chamber
Raj D. Patel ; I. J. Patel
Mechanical Engineering
Year: 2014, Volume:1, Issue : 7
Pages: 72 - 76
Erosion and corrosion of bed coil is a major problem faced by the power plant industry today. The damage caused to the exposed surface of the tubular, due to these phenomena can be enormous. The failure of equipment during treatment can be very expensive both from the point of view of economic losses as well as personnel safety. In order to increase the steam parameters in combustion units, several new approaches have been proposed. New materials have been tested, but they seldom have been a sufficient solution. Metallic coatings sprayed on super heater tubes have been noted to reduce erosion and corrosion in selected cases. New plant designs have been tested. Corrosion of materials may represent a heavy burden for industry in general, especially for the petroleum industry where the oil and gas compositions are responsible for reducing the service life of component materials of equipment due to severe corrosion attack and, consequently, to considerable expenses related to the maintenance and replacement of parts in a processing unit. Corrosion is one of the main causes of reduced reliability in steam generating systems. It is estimated that problems due to boiler system corrosion cost industry billions of dollars per year. Many corrosion problems occur in the hottest areas of the boiler-the water wall, screen, and super heater tubes. Other common problem areas include dearators, feed water heaters, and economizers. Methods of corrosion control vary depending upon the type of corrosion encountered. The most common causes of corrosion are dissolved gases (primarily oxygen and carbon dioxide), under-deposit attack, low pH, and attack of areas weakened by mechanical stress, leading to stress and fatigue cracking.
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Parametric Optimization on Die Steel using Wire Cut EDM - A Review
Rahul M. Chaudhari ; Mr. Vimal P. Salot
Mechanical Engineering
Year: 2014, Volume:1, Issue : 7
Pages: 77 - 79
With the increasing demands of high surface finish and machining of complex shape geometries, conventional machining process are now being replaced by non-traditional machining processes. Wire Electric Discharge Machining (WEDM) is a non-traditional process of material from conductive material to produce parts with intricate shape and profiles. Machining parameters affecting quality characteristics in the machining process is thoroughly studied. Productivity is constantly a matter of concern with a high level of accuracy for any process; rather it is the driver of economic growth of industry. The problem like lower production, higher surface roughness, due to higher tool wear, cutting wire have to change many times also facing vibration problem. Surface roughness and MRR are of crucial importance in the field of machining processes. The input parameters selected for optimization voltage, pulse on time, and current. Dielectric fluid pressure, wire speed, wire tension, resistance and cutting length are taken as fixed parameters. For each experiment surface roughness and MRR was determined by using contact signal to noise ratio measuring system respectively. By using multi objective optimization technique GRA and ANOVA, the optimal value is obtained for surface roughness and MRR and by using Taguchi optimization technique, optimized value is obtained separately. The objective of optimization is to attain the minimum SR and the maximum MRR.
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Parametric Optimization of the process of Fused Deposition Modeling in Rapid Prototyping Technology- A Review
Vishal N. Patel ; Mr. Kamlesh P. Kadia
Mechanical Engineering
Year: 2014, Volume:1, Issue : 7
Pages: 80 - 82
Rapid prototyping (RP) refers to a class of technology that can automatically construct the physical models from computer aided design (CAD) data. Fused deposition modeling is one of the RP process that produced prototype from plastic material by lying track of semi molten plastic filament on to a platform in a layer wise manner from bottom to top. The quality of FDM made parts are highly depends upon various process parameters of process variable parameters of layer thickness (A), air gap (B), raster width (C), contour width (D), and raster orientation (E) on the mechanical properties viz. tensile, flexural, impact strength and hardness of part fabricated using fused deposition modeling (FDM) technology. To conduct this study, a full Taguchi experiment was used to obtain the test runs. A number of analytical methods Analysis of Variance (ANOVA), used to determine the influence of the variable FDM process parameter settings. Hence optimization of FDM process parameters is necessary in order to improve the quality of parts. The purpose of this paper is to explore the reviews for various optimization methods used for process parameter optimization of FDM process.
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A performance optimize Solar Still using CFD Analysis
Abdulrakib M. Kachwala ; Mr. K. V. Modi
Mechanical Engineering
Year: 2014, Volume:1, Issue : 7
Pages: 83 - 85
Solar still is simple device to convert available saline water into drinkable water. In country like India, single slope solar still is used. Their usages are prohibited by their cost. This required study on the modeling and transport parameters determination of basin solar still for an efficient design. Hence a three-dimensional, two-phase model was developed for evaporation and condensation processes in solar still by using computational fluid dynamics (CFD) method to simulate the model. The simulation results were compared with the available experimental data(Research Paper) of basin solar still. The amount of fresh water productivity and water temperature were in good agreement with experimental data. The objective of the study was to determine a best combination of different parameter for good convective and evaporative heat transfer coefficients.
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An Introduction of Image Fusion Techniques
Sejal M. Baraiya ; Prof.Lokesh P. Gagnani
Information Technology Engineering
Year: 2014, Volume:1, Issue : 7
Pages: 86 - 89
Image fusion is the process in which two more images are combined into single image which retain all the important features of original images. With fused image we will be get more information and complete image than any of the input images. This paper presents two approaches for the fusion, namely spatial fusion & transforms fusion and there are techniques such as principal component analysis (PCA) which is spatial domain technique and discrete wavelet transform (DWT), stationary wavelet transform (SWT) & discrete cosine transform (DCT) which are transform domain techniques. So, in this paper presents comparison of PCA, DWT & DCT with SWT. Then with Morphological processing. We get comparison with parameter like, spatial frequency (SF), standard derivation (SD), PSNR, NCC, etc. this type of parameters are using for getting high resolution and good quality.
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DESIGN, DEVELOPMENT AND FABRICATION OF IMPACT LOAD TESTING MACHINE FOR COT
Sandesh G.Ughade ; Dr.A.V.Vanalkar ; Prof. P.G. Mehar
mechanical engineering
Year: 2014, Volume:1, Issue : 7
Pages: 90 - 95
This paper describes the design of a new pneumatically load applied machine that has been specifically design for studying the dynamic mechanical behavior of COT (wooden bed). Such type of equipment has been used to generate simple and measurable fracture processes under moderate to fast loading rates which produce complicated crack patterns that are difficult to analyze. We are developing the machine as a facility to provide experimental data to validate numerical data of impact load on COT that observe kinetic energy during collision. The machine consists of two main parts, the mechanical structure and the data acquisition system. The development process included the design, development, fabrication, and function tests of the machine.
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DESIGN OF MECHANISM FOR SPECIFIC PROFILE ON EARTHEN POT MAKING
ROSHAN R. SHRIRAO ; Dr. C. C. Handa ; Nandkishor M. Sawai; Ashish S. Raghtate; Smita U. Chakole
MECHANICAL ENGINEERING DESIGN
Year: 2014, Volume:1, Issue : 7
Pages: 96 - 99
The art of pottery is one of the oldest skills known to the Indians. From time immemorial, lumps of clay were moulded by hand to form toys and deities of worship. The advent of the potter's wheel gave man the opportunity to make beautifully shaped pots for his personal use. Over time, this craft evolved into various specialized categories like simple clay pottery, glazed pottery, terracotta pottery, blue pottery, paper thin pottery, etc.which are being practiced in various parts of India today. Today, many schools of pottery are scattered in different parts of the state. The potteries as conventionally made by manually. Manual pottery makes has inherent defects like precision, quality, finish, consistency, low production etc.The skill of labour is the greatest concern of the industry. The mechanisation of the profile making operation is solution to such issues. For that purpose we have developed such mechanism in which, manual process converted into automated manual process from that, the mechanism of specific profile on earthen pot making is designed in this way with the help of that mechanism; it is possible to automate a skilled manual process which would avoid worker fatigue. Also the future scope for developing the generalized mechanism for any profile can be identified.
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Abstract
