Kongu Engineering College

About: Kongu Engineering College is a based out in . It is known for research contribution in the topics: Computer science & Cluster analysis. The organization has 2001 authors who have published 1978 publications receiving 16923 citations.

Improve Efficient Keywords Searching Data Retrieval Process in Cloud Server

Abstract: Over the past several decades there is an exceptionally large improvement in the computer technology which leads to an uncountable number of data and information emerging in and all over the world. Due to this tremendous and huge dump of data as well as web data most popular search engines are experiencing a lot of irrelevant retrieval of data. To distinguish a precise information pursuit furthermore to produce information that originates from anywhere. Too substantial to store on a search engine to such an extent that the PCs are associated with each other by the cloud search engine. Plan of search engines and its foundation grave is fundamentally focused. Search Engine Optimization is gathering of strategy and takes after by which any site can support positioning in internet searcher.

Workplace factors and prevalence of low back pain among male commercial kitchen workers

Abstract: Background The occurrence of specific low back pain (LBP) due to workplace factors has not been well described among kitchen industry workers. This study would claim various risk factors that contributing LBP among kitchen workers. Objective The purpose of the study was to examine the risk factors and the prevalence of LBP among the male commercial kitchen workers at catering industry. Methods The study population comprised of 114 male kitchen workers from nine hostel kitchens in a college campus in South India. The reported musculoskeletal symptoms during past 12 months were determined with the help of standardized Nordic Musculoskeletal Questionnaire (NMQ) survey and by direct observations. Results The statistical analyses were carried out and the highest prevalence of LBP among subjects was reported as 65.8%. Among different work categories, the Chief cooks were reported highest prevalence of LBP (79.2%) than Assistant Cooks (71.4%) and Kitchen Aids (30.0%). Similarly the upper age group ( ≥ 41 years) workers had experienced the highest discomfort in low back as 92.9% than other age groups. Conclusions Results suggest that to undertake further studies on different preventive measures and ergonomics intervention to reduce the risks of LBP among kitchen workers.

Nature inspired preemptive task scheduling for load balancing in cloud datacenter

Abstract: Scheduling of the tasks in the cloud computing is assigning tasks to the particular machine. Load balancing of preemptive independent tasks on the virtual machine (VMs) is an important aspect of the task scheduling in clouds. Load balancing aims to optimize resource, minimize response time, maximize throughput and avoid overload of any of the resources. If the load balancing is not properly done, then it may lead to the condition where some virtual machines may get overloaded while others may become underloaded or even idle. Due to unbalanced load, the tasks are not completed in time and as a result the user satisfaction is not achieved. The proposed algorithm almost reduces makespan through preemptive task scheduling which follows the foraging behavior of honey bees. This algorithm considers the priority of the tasks and their expected remaining completion time with an aim to maximize throughput and minimize latency. Our approach improves the response time of users by effective utilization of available resources.

An alternative scheme to reduce torque ripple and mechanical vibration in direct torque controlled permanent magnet synchronous motor

Abstract: The direct torque control (DTC) technique of a permanent magnet synchronous motor (PMSM) has received increasing attention due to its simplicity and robust dynamic response compared with other control techniques. The classical switching table based DTC presents large flux, torque ripples and more mechanical vibrations in the motor. Several studies have been reported in the literature on classical DTC. However, the studies that actually discuss or evaluate the classical DTC are limited. This paper proposes, an alternative DTC method/switching table for PMSM, to reduce flux and torque ripples as well as mechanical vibrations. This is achieved by a simple modification in the classical DTC structure, by eliminating the two level inverter available in the classical DTC and replacing it with a three level neutral point clamped inverter. To further improve the performance of the proposed DTC, the available 27 voltage vectors are allowed to form different groups of voltage vectors such as Large - Zero, Medium - Z...

Prevalence of work related musculoskeletal disorders among occupational bus drivers of Karnataka, South India

Abstract: Background Work-related health problems result in an economic loss of 4-6% in GDP (Gross domestic Product) of the most countries. In the industrialized countries, 1/3rd of the health-related absence to duty are due to musculoskeletal disorders. Professional driving is one such occupation which looks like sedentary occupation, but involves many risk factors that contribute to work-related musculoskeletal disorders (WMSD) due to its nature of working and work environment. This research describes the various risk factors associated with WMSDs and their effects on drivers health. Objective To assess the prevalence of WMSD and its associated risk factors among the bus drivers of Karnataka State Road Transport Corporation (KSRTC), Karnataka. Methods Subjects considered in this study are 301 full-time bus drivers from the central division KSRTC which consists of 6 depots in Bengaluru. Information regarding reported WMSD symptoms during immediate past 7 days to 12 months, the intervention of WMSD in their day-to-day life and the overall comfort of the body are determined through Standardized Nordic Questionnaire and also by direct observation. The survey questionnaire is conducted by face to face interview. Findings From the statistical analysis, it is found that around 55.8% of the study population has experienced WMSD. The prevalence of WMSD is most common in the age group of 29-39 years (53.5%) followed by the age group of >40 years. Conclusion In this study, some of the work-related and lifestyle/health-related factors show significant association with WMSD in bus drivers of Karnataka. Musculoskeletal disorders can be prevented by designing the driver's workspace ergonomically so that the design suits to all sorts of drivers and the drivers should also be trained on basics of vehicle ergonomics (posture, seat adjustments, in-vehicle controls adjustments). Interpretation KSRTC should educate drivers on the basics of vehicle ergonomics, harmful use of tobacco/alcohol, unhealthy food habits and also to involve in physical exercise at least 75-150 mins weekly. If not, the trend of drivers suffering from WMSD belonging to mid-age will increase exponentially. Scope for future work Statistical result and direct observation insist on undertaking further studies on ergonomic interventions at driver's cabin, lifestyle/occupational health factors which mitigate WMSD in different parts of the body during driving.