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Vibration Analysis and Its Influences on Performance of Centrifugal Pump
Jayesh Bhuva ; Ashok Kumar Gupta
Mechanical Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 63 - 70
The ever increasing applications of centrifugal pump have resulted in a growing awareness on addressing various performance demands. Early detection of failures in equipment is one of the most important concerns to industry. The condition monitoring of rotating machine has received considerable attention in recent years. Many techniques have been developed for early failure detection in centrifugal pump. Recent years have seen the rise of vibration problems associated with structures, which are more delicate and intricate, machines, which are faster and more complex, and production processes, which are automated and interlinked. The occurred problems are direct related with demands of lower investment, running and maintenance costs in coincidence with the requirements of increased productivity and efficiency. Consequently, there has been the necessity for a better understanding of vibration causes and the dynamic response of complex machinery as well as single components. Centrifugal pumps play a vital role in many critical applications and therefore continuous availability of such mechanical components become absolutely essential. This paper focuses on a problem of vibration-based condition monitoring and fault diagnosis of centrifugal pumps. The vibration based machine condition monitoring and fault diagnosis incorporate a number of machinery fault detection and diagnostic techniques.
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Fully Secured Adhoc Wireless Network by using on Demand Half Full Weighing Matrices
Subhash Chandra Dutta ; Sudha Singh; D K Singh
Computer Science and Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 71 - 77
An ad hoc wireless network is a collection of nodes that are dynamically and arbitrarily located in such a manner that the interconnections between nodes are capable of changing on a continual basis. Providing security support for such network is a challenging task. Masquerading, eavesdropping, resource consumption, interference and jamming are some of the major threats to such network. The scheme proposed in this paper gives a general framework to solve the security threats by designing on demand Half-full weighing matrix based cryptography scheme (ODHFWMBCS). It provides almost complete secure communication. ODHFWMBCS is a combination of code containing node identity and public key cryptography. For code, on demand half full weighing matrix have been constructed. The proposed scheme ODHFWMBCS gives a new direction towards more effective and efficient security design for ad hoc wireless networks.
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Conjunctive Keyword Search with Designated Tester and Timing Enabled Proxy Re-Encryption in Health Cloud
Soumiya. Y. Patil ; Archana J. N
Computer Science and Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 78 - 85
An application has been developed for the incredible accommodation in the health care. Here the protection and safety of the personal information of the users are the major issue. So here we have introduced a multiple keyword search in order to access the data that is present in the cloud by the delegatees. The patient or the delegator will give the rights to access the data to the users by providing a particular time period in order to access the data. The time has been enabled for the users and data can be accessed. It can likewise bolster the conjunctive catchphrases inquiry and oppose the watchword speculating assaults the keywords that are provided by the data owner will be encrypted and will perform the search operation. This is done because the hackers cannot guess the keyword. In this case we are preventing the keyword guess attacks. This will provide hundred percent security to store the patients’ health record in the cloud than the oracle model.
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Frequency Reconfigurable Log Periodic Microstrip Dipole Antenna Array for Wideband Applications
Budireddi Siva Prasad ; M. G. Sumanth; Prof. P. Mallikarjuna Rao
Electronics & Communication Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 86 - 92
The concept of reconfigurable antenna is widely used as an additional feature of reconfigurable ability for future wireless communication systems especially for cognitive radio applications, radar system and multi-frequency communications. There are various configurations of reconfigurable antenna such as monopole, dipole and log-periodic wideband antenna. This paper describes the design and simulation of frequency reconfigurable log periodic microstrip dipole array (FRLPMDA) using dipole patch elements with an useful frequency range for C band (4-8 GHz), X band ( 8-12 GHz ) and Ku band (12-18 GHz ). The integration of reconfigurable antennas with radio frequency (RF) switches are needed to perform the switchable ability [3-6]. In this paper, a frequency reconfigurable LPMDA has been designed to perform a wideband frequency operations by connecting fifteen dipole antennas using coaxial feed line technique. Then, the diversity in frequency is achieved by switching ON and OFF of the PIN diodes connected at every transmission line. It is compact in size and useful to support on board Radar and many wireless applications where they can reduce the size of front circuitry in communication systems.
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Effect of Rapeseed Oil Methyl Ester-Butanol Blend at Various EGR and VCR on Emission Characteristics of Diesel Engine
Mr. P. V. Swami ; Prof. Sardar Shaikh; Prof. R. H. Yadav
Mechanical Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 93 - 98
The main aim of these work is to investigate the effect butanol blending at various EGR and VCR at full load condition, On the emission and performance characteristics the testing results are compared with the pure diesel and rapeseed oil methyl ester (B100). The rapeseed oil methyl ester-butanol blend were 20% butanol by volume basis at EGR rate 0%, 5%, 10%, 15% and VCR 14, 16, 18. The blending result shows that the viscosity and density is decreased and close to the diesel fuel. As compared to biodiesel the butanol blending fuels are showing less nitrogen oxide(NOx) Emission. On the other hand high carbon monoxide(CO) and unburned hydrocarbon emissions. The 20% butanol is a highest concentration of blend in biodiesel causes higher CO and HC emission and lower the NOx emission than biodiesel. The EGR achieves lower NOx as the percentage of EGR is increased. The performance diesel engine increases with the increase in compression ratio.
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Analysis of Action of Polypropylene Fiber on M-30 Concrete by Supplementing Cement with Fly ash and GGBS
Poornima M Reddy ; Dr. Shreenivas Reddy Shahapur; Maneeth P D; Brijbhushan S
Civil Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 99 - 103
The paper deals with the effects of addition of various proportions of polypropylene fibers on the properties of concrete. Main objectives of this experimental investigation is to characterize the selected mechanical properties of PPFRC and to study the effect of volume fraction of (PPF). The present dissertation work is carried out with M30 grade concrete with w/c ratio of 0.363. Cement is replaced by 20% of fly ash and 10% of GGBS. Polypropylene fibers are added by 0%, 0.50%, 1.00%, 1.50% & 2.00% of volume fraction. For all mixes compressive, split tensile, flexural tests are carried out and they are compared with conventional concrete.
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Design and Analysis of an Unfired Pressure Vessel for Conducting Pressure Test
Ujwal Teja Mallampalli ; M Varadanam; A Jawahar Babu
Mechanical Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 104 - 110
A pressure vessel is defined as a container with a pressure differential between inner and outer surface. The inside pressure is usually higher than the outside, except for some isolated situations. Pressure vessels often have a combination of high pressures together with high temperatures both internally and externally. Any leak under operating pressures may lead to failure of the vessel which causes extensive physical injury and property damage. Because of such hazards it is imperative that the design be such that no leakage can occur. In addition these vessels have to be designed carefully to cope with the operating temperature and pressure. This project set out to design and analyzes a custom made pressure vessel for the required application. Explore applicable methods using finite element analysis in pressure vessel analysis. Having tested three ax symmetric models, the preliminary conclusion is that finite element analysis is an extremely powerful tool when employed correctly. Problems such as local stress risers, unrealistic displacements and understanding how to use such data become extremely important in this kind of analysis. The difficulty in analysis of stress and strain in structural engineering depends on the structure involved. As the structure grows in complexity, so does the analysis. However, these Calculations often provide solutions only for the maximum stress and strain at certain points in the structure. This highlights the key to proper use of finite element analysis. Process starts with performing basic calculations of pressure vessel by using ASME Pressure Vessel code and BIS Unfired pressure vessel code. Once we obtain results from basic calculation we develop software for iteration of vessel parameters. This gives a fine refinement and accurate parameters that require to design a pressure vessel. Later these parameters are developed to 3D modeling in Solid Works 2013, followed by analysis of stress and deflection by ANSYS WORKBENCH 13.0. The dissertation deals with design and analysis of Pressure Vessel with Integral Type Flange.
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Effect of Steel Fiber on M30 Grade Concrete by Substation of Fly Ash in Varying Percentage of Cement and Fine Aggregate Replaced by M Sand by 60%
Rakesh Patil ; Maneeth P.D; Brijbhushan.S
Civil Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 111 - 115
Manufactured sand and natural sand in concrete with a partial substitute for the fresh and hardened properties of the water-cement ratio, the outcome of the investigation. M30 of concrete mix design part was done in accordance with the IS Code (that is, 10262:2000). Concrete cube, prism and cylinder respectively compressive, flexural strength and split-tensile strength were tested to evaluate. Workability was measured as far as the reason for compaction and slump. This M-sand in concrete can be utilized as a practical contrasting option to normal sand. 60% of M-sand have good strength with replacement. This work puts forward the sand applications (manufactured) as practical advancement in India. In addition, steel fiber is a good idea to use a sequence of concrete strength and workability. Are carried out using a number of tests, including tests of workability, compressive test, tensile test and flexural test. Fly ash use in concrete, cement consumption reduction and reduced permeability is required as benefits. Fly ash use in concrete leads to an improvement in the original strength, but there is a long-term increase in strength.
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The OSI Model: Overview on the Seven Layers of Computer Networks
Priti V. Jasud
Computer Science and Engineering
Year: 2017, Volume:4, Issue : 3
Pages: 116 - 124
Due to the urgency in the need for standards for heterogeneous computer networks, International Standard Organization (ISO) created a new subcommittee for “Open System Interconnection†(ISO/TC97/SC16) in 1977. The first priority of subcommittee 16 was to develop architecture for Open System Interconnection which could serve as a frame work for the definition of standard protocols. As a result 18 months of studies and discussions, SC16 adopted a layered architecture comprising seven layers (Physical, Data Link, Network, Transport, Session, Presentation, and Application). In july 1979 the specifications of this architecture, established by SC16, were passed under the name of “OSI Reference Model†to Technical committee 97 “Data processing†along with recommendations to start officially, on this basis a set of protocols standardizations to start projects to cover the most urgent needs. These recommendations were adopted by TC97 at the end of 1979 as the basis for the following development of standards for Open System Interconnection within ISO. The OSI Reference Model was also recognized by International Telegraph and Telephone Consultative Committee (CCITT) Rapporteur’s Group on “Layered Model for Public Data Network Servicesâ€. This paper explains the OSI Reference Model, which comprises of seven different layers. Each layer having their own responsibilities.
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Black Money and it Eradication for Sustainable Economic Development
Priya Kumari ; Ashok Kumar Saha
FINANCIAL SECTOR
Year: 2017, Volume:4, Issue : 3
Pages: 125 - 127
The money is in circulation but none accounted is generally termed as Black money or black money runs the non-accounted parallel economy is a global dilemma. It is not only a concern of a single country but it is a common challenge like terrorism, poverty, racial discrimination or recession in the era of globalization. Recently, it has observed that the black money based parallel economy jeopardise the health of the global economy as we have inter- dependent, inter- connected chained world economy in the present times of globalization. Series of studies have been conducted and revealed some bolt from the blue facts and figure in India. In the last decade alone, India has lost approximately $125 billion in non-accounted or illegitimate money or sometimes claimed that the black money even exceeds 10% of Gross Domestic Product in India. The transformation of manual or cash based system to processing of digital based transaction will ease the economic pressure on Indian economy as well it will contribute in the world economy so there is an important role of Digital based economic transactions(DBET) in the globalized economic system. The connection of Digital based economic transactions (DBET) will lead to an amazing output in the form of Revenue generation for the Government. This enhancement in the public revenue generation will lead to end less benefits and mass of India will reap the benefits of it and foster sustainable economic development. This type of economic system will endow with the arsenals of circulation of accounted money; fair collection of revenue streaming, accounted economic transactions will yield the benefits in terms of poverty alleviation, health for all, education to mass, Hygienic and sanitation facility, drinking and safe water can be availed to all. When it comes to flow of black money world -wide, India is ranked in eighth. The flow of black money can seriously affect the entire economic system of India. Black Money causes the prices of commodities to increase to a level beyond normal. People with black money are able to give bribes to the administrators and politicians for getting whatever they want. To control the generation of black money there should be a strong and appropriate legislative framework. The triangle of Economic transaction, Digital based economic transaction and tax system will emerge as a triangle and curb the horrible demon shaped black money parallel economy and fiasco for sustainable economic development.
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Abstract
