In today’s world, concrete is most popular and widely used material in construction sector due to its good compressive strength and durability. Depending upon its usability the mix proportion (cement, fine aggregate, coarse aggregate and water) are prepared to produce plain concrete. Plain concrete needs ambient atmosphere for curing for a minimum period of 28 days in order to attain desired strength. Any laxity in curing will badly affect the strength and durability of concrete. Self-curing concrete is one of the special concretes in mitigating insufficient curing due to human negligence, paucity of water in arid areas, inaccessibility of structures in difficult terrains and in areas where the presence of fluorides in water will badly affect the characteristics of concrete. The present study involves the use of shrinkage reducing admixtures like POLYETHYLENE GLYCOL (PEG 400) as internal curing compound and CUREFREE-C as external curing compound. These curing compounds are used in concrete which helps in self curing and helps in better hydration and hence good compressive strength. They trap the moisture within the structure and prevent it from evaporation (by creating a thin film or by block the pores containing water) which normally occurs due to the hydration process .In the present study, the affect of curing compounds on compressive strength and flexural strength is studied. From the previous studies by various researchers, we vary the percentage of PEG by weight of cement from 0% to 2% as the dosage of internal curing compound and 0.25% of CUREFREE-C by weight of cement was fixed as the dosage of external curing compound The test results were studied both for M25 and M30 mixes .The results shows that PEG 400 and CUREFREE-C could help in self curing by giving strength on par with that of the conventional curing method.

The paper deals with reliability analysis of a system composed of three non-identical units G, P and C.Initially unit G is in operating state while as unit P and C are in idle state. System failure occurs if either unit G fails when unit P and C are in idle state or G and P fails when C is in idle state or when all the units’ viz. G, P and C fails totally. Single repair facility is available to repair the failed unit in which unit G gets priority for repair over P and C and then if unit P and C fails, second priority is given to unit Pover C and finally unit C is repaired by repairman till the system becomes operative. Once the repairman starts repair of the failed unit, he does not leave the system till all units are repaired during his stay in the system as per priority. The failure time distributions of unit-G, P and C are taken exponential. The distribution of time to repair of unit-G, P and C is assumed to be general. After repair a unit becomes asgood as new

In this paper a new modified explicit-pulsed clock gated sense-amplifier flip-flop (MCG-SAFF) is proposed for low power and high performance applications. By embedding dual-edge triggering mechanism and conditional pre-charging in the new symmetric latch, the MCG-SAFF is capable to achieve low power dissipation and delay. The simulations are carried out in mentor graphics tools of 130nm technology. From this it is evident that with the proposed design there is 22.1% reduction in power dissipation and 76.5% in delay. When the switching activity is less than 0.5, the proposed MCGSAFF shown its superiority in terms of power reduction. During zero input switching activity, MCGSAFF can realize upto 86% in power saving

In this study, a gear shifting mechanism was designed and applied to make the shifting process faster and less destructible for the driver. The main objective of this concept is used to apply the gear by using automation system in automobile vehicles. This is the new innovative model mainly used to control the vehicle. Here, we are concentrating to design the automatic gear changing mechanism in two wheeler vehicles by using the electronic devices. This is very useful for the gear changing mechanism in automobile vehicles. By using this we can easily control the vehicle and improve the performance of the vehicle also we can avoid the wear and tear of the gear. Here, we are using eccentric cam to change the gears for two wheelers. By using this eccentric cam operation, we can eliminate the more disadvantages in gear changing system. By using this system, we can reduce space of locating gear box, gear damage, bleeding of pneumatic and hydraulic energy flow tubes, less noisy operation, less cost and doesn’t require frequent maintenance

This research application suggests elevating a search query log evaluation by enchanting into account the conceptual attributes of query provisions. We first illustrate a strategy for removing a conceptual description of a search query log after which reveal how we will utilize it to comparatively extract outcomes without ambiguity. The notion relation is consisting of set provisions consistent collectively concept relations as well as of a function to determine the concept spacing between provisions, which even more called as TF (termfrequency). We then drain TF with feedback sessions, which we construct upon click using logs. Furthermore,a query terminology clustering algorithm is used on the log description to extract user pursuits.

Industrialization is the key to development where energy is the driving force. Fossil fuel is not anunending source of energy and hereby can be supported from renewable energy. This paper addresses an experimental study of a new dimension of energy that can be a good support of fossil energy as well as meet the environmental concern. All sorts of municipal plastic waste except PET have been successfully converted into fuel and hereby prevent their unhygienic exposure in environment that might lead emission of carbon-monoxide by burning as well as degrading soil fertility. The majority of plastics are derived from ethylene, propylene, butadiene and benzene. With the presence of Al2O3 and ZnO catalyst, the plastic wastes are heated up to 350°C temperature into a reactor and the gaseous stream were condensed and collected in receiving chamber. Performance and property tests are conducted of the derived fuel. The produced fuel contains long carbon chain lengths C3-C27 determine by GC. ASTM test result showed low sulfur contents resulting high performance and environmentally friendly at the same time. The experiment has been met the highest standards of safety, quality,reliability and environmental sustainability in converting hydrocarbon fuel of this locality.

The aim of this paper is to present the reliability analysis of a two unit complex system with the assumption that unit A is a combination of hardware and software components and other unit B (which has two sub-unit) stops working due to external cause. The unit A is replaced by new one if the repair is not completed within maximum repair time. Unit B is not reparable and is to be replaced by a new one upon its failure. The failure time distributions of the units are taken as exponential whereas the repair and replacement time distributions are general. Using regenerative point technique, important measures of the system effectiveness are obtained. The graphical behaviours of MTSF and Profit function have also been studied

Antenna is an electronic device which is the source of electromagnetic (energy) wave[1].Antenna is a radiantly element which radiates electromagnetic energy in free space in all directions.Dipole is radiantly element which radiates directionally. The dipole is characterized by its length[11]. When the length of the dipole antenna is increased the radiation pattern becomes change and introduced side lobes.In the pattern work Design of dipole and its array antenna systems are presented. In modern communication systems such as Satellite links, GPS, wireless local networks often require antennas with low cost high gain with narrow beams. The dipole array antennas are an useful in such cases. In this work design of dipole arrays are presented and compare with ideal array system slots are obtained with good agreement.

Library robot is an assistant system used to assist the user who wants to search, locate and collect the required book in the library. The request of the user is processed in the computer based system to have the robot informed about the particular shelf or location. Using this information, the robot has its movement towards the informed location and performs barcode scanning across the shelf to find the requested book.The robot with its sliding arm can scan the books in a particular shelf and barcode matching is done in the control based system. The robot exerts force on the book which is found to be matched by the scanning system and collects the book in the tray. This robot based assistant system is reliable to be incorporated in the library and assists the user to collect the required book. The system with its integrated automatic object recognition and force feedback make the robot to deliver the book as soon as possible by minimizing the search time of the user.

The increasing demand on mobile service providers to support high rate applications has prompted the development of 4G networks. LTE Advanced is one of the promising technologies to meet the rising demand.This paper studies performance of LTE Advanced Network through relay deployment to enhance cell edge coverage and using of decode and forward (DF) protocol by evaluating of many scenarios using Matlab program, and WINNER-II which is used to investigate different channel model or propagation environments.Results have shown that cooperative relay number has significant effect in enhancing network performance.And by using couple of modulation types QPSK, 16QAM and 64QAM for relay link and access link, 64QAM has higher BER even by increasing SNR

This paper deals with building an application model of an automated fire protection system in an indoor environment. This model is a highly localized and targeted Fire Extinguishing system. The system consists of an arm which ends with the turret mounted with dispenser. An Infra-Red camera is used to detect the fire using the rays received and the processor inside the camera converts them into an image using various colours for different temperatures. The acquired image is then processed and the sources of heat are isolated. The position of the source of fire is mapped from the camera coordinates to the real world coordinates using a microcontroller and the turret is aimed at the fire by a targeting control system which triggers the servomotor used to move the turret. When the turret is targeted towards the center of the fire source, water is released using the sprinkler controlled by a solenoid valve. Thus the sources of fire in the field of view of the camera are suppressed.