Chaitanya Bharathi Institute of Technology

Hyderabad, India

Chaitanya Bharathi Institute of Technology

Hyderabad, India
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Ettikyala K.,Chaitanya Bharathi Institute of Technology | Latha Y.V.,Gokaraju Rangaraju Institute of Engineering and Technology
Proceedings of 2016 International Conference on Data Mining and Advanced Computing, SAPIENCE 2016 | Year: 2016

Cloud data centers have become crucial infrastructure for computing and data storage that facilitate the development of varied services offered by the cloud. In every datacenter, thousands of virtual servers or virtual machines run at any instance of time which hosts many tasks and in parallel cloud system should keep receiving the batches of task requests. In this context, out of many powered on servers only few targeted servers should fulfill batch of incoming tasks. Hence, task scheduling is an important issue which greatly influences the performance of cloud. The main objective of the scheduling algorithms in cloud environment is to utilize the resources efficiently while balancing the load between resources, to get the minimum execution time. In this paper we designed a rank based efficient task scheduler which effectively utilizes resources and provides high performance than spaceshared and timeshared task schedulers. This algorithm has been tested using CloudSim toolkit and results were compared with spaceshared and timeshared task schedulers. © 2016 IEEE.


Guda V.,Chaitanya Bharathi Institute of Technology
2016 IEEE International Conference on Recent Trends in Electronics, Information and Communication Technology, RTEICT 2016 - Proceedings | Year: 2016

The notion of events plays a crucial role in narrative texts. Events are the situations that happen or occur at a particular place and time. Extraction and representation of event has a significant role in many of the natural language text and applications like text summarization, question answering systems etc. Several methods were developed so far but they addressed the problem in domain aspect point of view. In this paper we demonstrate a rule based system for event extraction which is generic in nature. A generic rules based event extraction algorithm was developed that maps the framed rules to derive the events from natural language text. Experiments were conducted on the MUC data set and the results are found to be encouraging. © 2016 IEEE.


Uday Kumar R.,Mahatma Gandhi Institute | Ravinder Reddy P.,Chaitanya Bharathi Institute of Technology | Sitaramaraju A.V.,JNTUH College of Engineering
Materials Today: Proceedings | Year: 2017

Hydro forming is new development in the manufacturing of various products in the field of engineering. In the manufacturing area one of the hydro forming process is Hydro forming deep drawing. Hydro forming deep drawing is one of sheet metal forming process to produce seamless shells, cups and boxes of various shapes. In this forming process, an additional element such as fluid pressure is to be contributes positively in several ways. In hydro forming deep drawing process, applying the hydraulic pressure on blank periphery in radial direction. It is obtained through the punch movement within the fluid chamber, which is provided in punch and die chambers. These two chambers are connected with the bypass path and it is provided in the die. During the process punch movement within the fluid chamber the pressure is generated in fluid and it is directed through the bypass path to blank periphery, the fluid film is created on the upper and lower surfaces of the blank and subsequently reduces frictional resistance and is to reduce tensile stresses acting on the wall of the semi drawn blank. The blank is taking at centre place in between blank holder and die surface with supporting of high pressurized viscous fluid. The radial stresses are produced in the blank in radial direction due to punch force applied on it. The shear stresses acted by viscous fluid on the both sides of blank, so apply viscosity phenomenon to this analysis. Due to the viscosity of fluid the shears stresses and shear forces acted on blank during drawing process. This viscosity used for determination of radial, hoop and drawing stresses in this process. The viscosity is maintained major role in hydro forming process. The blank holder pressure is controlled by the radial pressure of fluid and these are equal for uniform deformation of blank to obtained required shape and also elimination of failure of blank in deformation. Newton's law of viscosity is applied for this process for evaluation of stresses. The radial stresses are determined in terms of viscosity of castor oil, shear stresses, blank geometry and process parameters for magnesium alloy. The study on these stresses in castor oil medium with consideration of its viscosity. © 2017 Elsevier Ltd. All rights reserved.


Rajendra Prasad M.,Vidya Jyothi Institute of Technology | Krishna Reddy D.,Chaitanya Bharathi Institute of Technology
Lecture Notes in Electrical Engineering | Year: 2017

An embedded system is an integration of customized hardware and optimized software designed for a specific function running continuously. In recent years, with the advent of increasing embedded telecom, an application running on dedicated platforms and the evaluation of system-level performance are essential. This paper proposes the procedure to analyze the low-level performance of three embedded platforms. These values are useful for GSM protocol stack developers for MS (Mobile Station), BTS (Base Transceiver Station), BSC (Base Station Controller) and MSC (Mobile Switching Center) to investigate system level issues at early stages. Lmbench is a powerful micro-benchmarks used to evaluate the latency and bandwidth measurements for embedded systems. These are very much useful for telecommunication signaling applications used with different protocol stacks. Lmbench is also used to characterize the early system-level performance of the processor board and real-time operating system (RTOS). At present, embedded Linux has become a heart of research in embedded system domain, so this paper focused on RTLinux as an RTOS. An experiment with the three processor boards, MPC 8548E, ARM920T, and ARM1176JZF-S, is set up to analyze the system-level performance of these processor boards. By comparing the system-level performance analysis of these platforms at the early stages, a telecom application developer can decide which board/processor is suitable for their application. Thus, we can reduce the time and cost by investigating the performance of processor boards and increasing the quality of embedded system testing for different telecom applications. This paper elaborates and discusses the system-level performance with the results for three processor boards. © Springer Nature Singapore Pte Ltd. 2017.


Rajendra Prasad M.,Vidya Jyothi Institute of Technology | Krishna Reddy D.,Chaitanya Bharathi Institute of Technology
Proceedings - 7th IEEE International Advanced Computing Conference, IACC 2017 | Year: 2017

IP-BTS (Internet Protocol Based Base Transceiver Station) is a small computing hardware module designed for integration into an industry standard tower PC housing which provides a complete GSM Access Point. It is used to optimize cost of transmission line for high density multi-band base stations. This paper describes the detailed procedure to develop system level boot loader software (universal boot loader-u-boot) for IP-BTS which is a customized hardware with PowerPC based processor board running on RTLinux operating system. This paper also discusses the brief presentation of the customized hardware platform at system level and the boot loader software development procedure for embedded telecom application IP-BTS. Designing suitable boot software at system or boot level is a complex and challenging task which is included in development of an embedded system for telecom applications. The boot loader connects application software through customized hardware and Real-Time Operating System (RTOS). It is not only responsible for initialization of the processor board and other module of IP-BTS software also upgrades operating system images and IP-BTS software versions. The early initialization code is always developed in the processor's native assembly language. In this paper we presented detailed procedure to transplant boot loader (u-boot) on Power PC based customized board and tested successfully with results. © 2017 IEEE.


Kishor K.,Chaitanya Bharathi Institute of Technology
International Journal of Mechanical and Production Engineering Research and Development | Year: 2016

To test the performance of different versions of SI engines (conventional engine, CE and catalytic coated engine, CCE, copper being coated on the piston crown and on the inner surface of cylinder head) with any new fuel or fuel blend, the possibility of deterioration of lubricating oil placed in between piston and liner of the engine is to be checked, which results in damaging the mechanical stability and decrease in the engine efficiency. As it is difficult to check practically, FE thermal analysis was adopted. FEA is important in evaluating the lubricating oil deterioration, as the liner is subjected to high temperatures and the piston crown and inside of the cylinder head are coated with copper. Thermal analysis includes the determination of temperature distribution and heat flow rate across the components (piston, liner and cylinder head) of SI engine. The prediction is important which determines the efficient combustion by means of catalytic coating on the surface of piston crown and over the inside surface of cylinder head. These studies are conducted on CE and also on CCE in order to emphasize the advantage of CCE over CE in producing efficient combustion. The temperature and heat flux rate at the component surfaces was found to be increasing along both axis and radius of piston, liner and cylinder head of CCE over CE. The temperature of lubricating oil was also found to be increasing with CCE over CE but it was found to be within the safe temperature limits to avoid deterioration. © TJPRC Pvt. Ltd.


Kishor K.,Chaitanya Bharathi Institute of Technology
International Journal of Mechanical and Production Engineering Research and Development | Year: 2016

Experiments were conducted for evaluating the performance parameters, control of pollution levels and combustion characteristics of a single cylinder, air-cooled, Bajaj make, 2.2 kW BP, 3000 rpm, two-stroke, catalytic coated (copper coated on the piston crown and on the inner surface of cylinder head), methyl alcohol-gasoline blend (80% gasoline, 20% methyl alcohol, by volume) operated SI engine with a compression ratio of 7.5:1, connected to an electrical swinging field dynamometer with resistive loading for. The engine performance parameters are brake thermal efficiency (BTE), brake specific energy consumption (BSEC), exhaust gas temperature (EGT) and volumetric efficiency (VE), while, the engine exhaust emissions are carbon monoxide (CO), un-burnt hydro carbons (UBHC) and aldehydes (formaldehydes and acetaldehydes). The combustion characteristics are peak pressure (PP), time of occurrence of peak pressure (TOPP), maximum rate of pressure rise (MRPR), maximum heat release (MHR) and temperature of exhaust emissions at exhaust port opening (EPO). The performance parameters, exhaust emissions and combustion characteristics were determined at full load operation of the engine, while, BTE was determined at peak load operation. Alcohol-gasoline blend fueled copper coated combustion chamber considerably improved the performance, reduced the pollutants with sponge iron catalyst in the catalytic converter fitted to the exhaust pipe, and improved the combustion parameters over conventional engine with pure gasoline operation. © TJPRC Pvt. Ltd.


Gopinath D.,Chaitanya Bharathi Institute of Technology | Sushma C.V.,Chaitanya Bharathi Institute of Technology
Materials Today: Proceedings | Year: 2015

Every vehicle that uses an internal combustion engine requires at least one connecting rod depending upon the number of cylinders in the engine. It undergoes high cyclic loads of the order of 108 to 109cycles, which range from high compressive loads due to combustion, to high tensile loads due to inertia. Therefore durability of the component is of critical importance. Due to these factors the connecting rod has been the topic of research for different aspects such as production, materials, performance simulation, etc. The main objective of research was to explore weight reduction opportunities for the production of forged steel, aluminium and titanium connecting rods. This has entailed performing a detailed load analysis. Therefore, this study has dealt with two subjects, first, static load stress analysis of the connecting rod for three materials, and second, optimization for weight of forged steel connecting rod. In this research, firstly a proper geometrical model was developed using CATIA. Then the model is imported to the HYPERMESH which is a finite element pre-processor that provides a highly interactive and visual environment to analyse product design performance and the Finite Element model was developed. The stresses were found in the existing connecting rod for the given loading conditions using Finite Element Analysis software ANSYS 11.0. The topology optimization technique is used to achieve the objectives of optimization which is to reduce the weight of the connecting rod. © 2015 Elsevier Ltd.


Reddy N.J.M.,Chaitanya Bharathi Institute of Technology
Frontiers in Energy | Year: 2016

There has been an immense endeavor to mitigate global warming in spite of which it has only been worse. This paper presents the design and implementation of a low power and eco-friendly refrigeration system using the thermoelectric effect. The conventional refrigerators make use of complex mechanisms which involves synchronous operation of various units, namely the compressor, condensers, expansion valves, evaporator, refrigerant and so on. But a thermoelectric refrigerator exploits the principle of the Peltier effect, thus avoiding the utilization of these complex components. This even helps curb the release of harmful chlorofluorocarbons (CFCs) into the atmosphere which contributes to the increase in global temperature. Moreover, the temperature can be controlled and set to required values with the help of a microcontroller. Hence, this can be used both for domestic and commercial purposes. The unit does not eject any harmful gases. Therefore, the heat expelled from the unit can be tapped for heating utilities, making the use of this device versatile in its application. Thus this proposal aims not only at reducing the air pollutants by not contributing to it but also at reducing the power consumption. © 2015, Higher Education Press and Springer-Verlag Berlin Heidelberg.


Reddy Y.S.,Chaitanya Bharathi Institute of Technology
Acta Physica Polonica A | Year: 2016

The polycrystalline bulk samples of R0:67Sr0:33MnO3 (R = Pr, Nd, Gd) were prepared by solid state reaction method and characterized by powder X-ray diffraction. The room temperature elastic behavior of these materials was investigated by employing ultrasonic pulse transmission technique at 1 MHz. The values of elastic constants were computed from longitudinal and shear velocities. The measured values were corrected to zero porosity using Hasselman and Fulrath's formulae. The variation of elastic moduli with the size of rare earth ion is interpreted in terms of strength of interatomic bonding.

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