Dynamic Load Balancing Algorithm in Cloud Computing Environment

Abstract

Cloud computing has become a new age technology that has got huge potentials in enterprises and markets. Cloud Computing has Large Scale Distributed Infrastructure which is accessible and scalable infrastructure. To maintain Quality of Service parameters like reliability, elasticity and minimizing the make span time is most challenging problem for cloud service provider. One of the major characteristic of cloud is elasticity in which resources can dynamically increase and decrease as per requirement. Task Scheduling is allocating the task to the available Virtual Machine and Load balancing is used to distribute a larger processing load to smaller processing nodes for enhancing the overall performance of system. Therefore, cloud service provider needs dynamic task scheduling algorithm that reduces the make span time while increases the utilization of cloud resources and meet the QoS parameters. In this paper, Dynamic Scheduling algorithm has been developed to balance the workload among all the Virtual Machine. The load balancer manages workload on VM with elastic provisioning and de-provisioning of resources. The simulation is done on CloudSim and developed algorithm has been tested on number of tasks (10 to 60). The computational result show that the developed algorithm decreases the make span time and increases the task to meet the deadline ratio compared to first-come-first-serve and SJF.

Performance Evaluation of A Run-Flat Tyre

Abstract

Continuous research and development efforts by tyre manufacturers show that tyres can be improved by adding a special supporting sidewall structure that allows the tyre to make it to the nearest service station completely devoid of an air pressure. This work evaluates the performance of a run-flat tyre that combines unique wheels and tyres used for original equipment vehicle applications. It involves the analysis of maximum tangential force at the instant of tyre burst, reaction at the supports and run- flat tyre vibration. It has been shown experimentally that the vibration of a run flat tyre in the region near the contact patch can be represented by a set of decaying waves thus; a run flat tyre was modeled as a lossy wave guide in which decaying waves propagate in the circumferential direction. The gliding times obtained before inserting run flat tyre for gliding distances of 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100 and 1200m are 150, 180, 205, 230, 255, 270, 295, 315, 335, 360 and 400s. Similarly, the gliding times obtained after inserting run flat tyre for the same distances mentioned above are as follows: 100, 120, 150, 170, 190, 225, 255, 275, 290, 320 and 340 respectively. It can be concluded that the vehicle maintained its linear driving at maximum left and right turns. Index Terms—Continuous research, development, gliding times, gliding distance

IMPACT OF BLAST LOADING ON BUILDING

Abstract

The use of movable bombs to attack main city centers has been a visage of expedition by terrorist organizations around the world. A bomb explosion within or immediately nearby a building can cause catastrophic detriment on the building's external and internal structural frames, collapsing of walls, blowing out of large expanses of windows, and shutting down of critical life-safety systems. Loss of life and injuries to occupants can result from many causes, including direct blast-effects, structural collapse, debris impact, fire, and smoke. The indirect effects can collect to forbid or prevent timely migrate, thereby contributing to additional casualties. In addition, major catastrophes resulting from gas-chemical explosions result in large dynamic loads, greater than the original design loads, of many structures. Due to the menace from such extreme loading conditions, efforts have been made during the past three decades to develop methods of structural analysis and design to resist blast loads. The analysis and design of structures subjected to blast loads require a detailed understanding of blast phenomena and the dynamic response of various structural elements. This paper presents a pervasive overview of the effects of explosion on structures.

An Embedded Autonomous Search and Rescue Mobile Robotic System for Alive Human Detection

Abstract

Natural disasters such as earthquakes, wildfires, hurricane, and flooding affect millions of people in the globe yearly. Nowadays, high-rise and skyscraper buildings are becoming prominent due to advanced structural technologies, which in-crease risks of losing life during natural and manmade disasters. In such disasters, many people lose their life by trapping under debris, as their presence cannot detect by the rescue team. Sometimes, it is impossible to reach in certain points of the disasters in such calamity hit zones. In this paper, a rescuing mobile robot system capable to autonomously perform the rescue mission is developed to detect human victims trapped in collapse buildings in an unreachable point of the disaster area. Camera-based target detection, thermal and ultrasonic sensors are used to build the systems. Signals from the sensors and images captured by the camera are displayed on PC at command center through Wireless Sensor Net-work (WSN). Ultrasonic sensor is used for obstacle avoidance detection to enable the mobile robot to navigate its path while the camera is integrated for observation and analyzing the condition of the disaster area. The performance of the propose system is evaluated by simulation and our result show that proposed system is capable to reduce the impact and the losses of human life in disaster areas

THE STUDY ON FLYASH BASED GEO POLYMER CONCRETE

Abstract

It is the experimental investigation done on performance of Geo-polymer concrete subjected to severe environmental conditions. The mixes were designed for molarity of 8M, 10M and 14M. The alkaline solution used for present study is the combination of sodium hydroxide and sodium silicate solution with the ratio of 1:2.5. The test specimens were 150x150x150mm cubes heat cured at 80 and 100 in an oven. It is well known that mechanisms of attack by sulphuric acid & magnesium sulphates are different conventional concretes are generally not resistant to prolonged exposure to very big concentration of this solution because decalcifications of C-S-H will occur. as a result of this, OPC concrete surface becomes soft and could remove, thus exposing the interior concrete layers to deterioration. At the same time as the magnesium sulphates attack, causes decalcification of C-S-H to form magnesium silicates hydrates (M-S-H). it also destroys the binding capacity of C-S-H and leads to a loss adhesion and strength in concrete. Durability of specimen were assessed by immersing OPC specimen in 10% sulphuric acid and 10% magnesium sulphates solutions separately, periodically monitoring surface deterioration and depth of dealkalization, changes in weight and strength over a period of 7, 14, 28 days. At the test result has an excellent resistance to acid and sulphate attack when compared to conventional concrete. Thus we can say that the production of Geo-polymer have a relative higher strength, excellent volume stability and better durability.

FoodPool – An application to pool food orders

Abstract

There is a slow but gradual shift to online services. Cheap internet access, fast internet access and easy to use applications have aided this. While ordering food online and via applications is common, this project proposes a technique to design and implement a model where people in the same area, ordering the same food, can pool their orders and thus, in the process, may be able to avail discounts and save money on delivery charges. A user performs all his transactions on the platform provided on the application, and can also look at potential offers, coupons, and discount options available for that particular restaurant on the application itself. The project also looks to help people pool for their travel expenses when going to particular events. Users just have to enter a waiting time and if someone else around the area is going to the same event around the same time, they will be matched and can go together, thus saving a lot of money and effort that usually comes with travelling to and from such events.

Socio-Economic and Environmental Impacts on agricultural related activities of Flood Disaster in and around Panchganga river basin.

Abstract