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This Dissertation presents that when water is magnetised, it exhibits structural changes which increases the specific surface area of water. When this magnetised water is used in concrete instead of normal water, it is found that the compressive strength increases considerably. The additional strength attained by the use of magnetised water is used to address the need for reducing cement usage in concrete. In this attempt to reduce the usage of cement, fly ash which has immense potential to be used in construction industry, can be used to replace cement in concrete to a considerable extent. Based on the experimental results obtained by conducting tests on fresh concrete i.e. workability & compaction factor test, and test on hardened concrete i.e. compressive strength, flexural strength, split tensile strength for various grades of concrete i.e.M15, M20, M25, M30, M40 are achieved.
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Pradnya Siddhartha Ubale and Dr. A. P. Wadekar. "Performance Evaluation of Magnetic Field Treated Water on Conventional Concrete." International Journal for Scientific Research and Development 4.6 (2016): 1104-1110.
This paper describes the design and construction of an automotive brake pad testing equipment that can be fitted into an existing diesel engine output rotor. The functionality of the design was tested by using the test equipment to evaluate the performance of three types of commercially available brake pads (i.e. asbestos, semi-metallic and ceramic). The wear rate of each brake pad was determined at different brake disc speed and the applied force on the brake pedal. The braking effectiveness of each brake pad was evaluated in terms of stopping time. The effect of brake disc temperature rise on wear rate was also evaluated for each of the brake pads. The results show that the wear rates of the three brake pads are satisfactory and are comparable with standard values. The ceramic brake pad is the most effective from the viewpoint of braking time and hence stopping distance. This is followed by the asbestos type while the semi-metallic brake pad is the least effective. The ceramic brake pad was observed to wear faster than either the asbestos or the semi-metallic brake pads.
David A. Aderibigbe, Michael Sani and Opeoluwa A. Awodehinde. "Design, Construction and Testing of an Automotive Brake Pad Test Rig." International Journal for Scientific Research and Development 4.6 (2016): 1115-1119.
This paper is concerned with calculating the optimum rating for two dynamic voltage restorers (DVRs) when used in an interline DVR (IDVR) structure. An IDVR consists of two or more DVRs which have a common dc link and, thus, can exchange active power. This can increase the compensation range of an IDVR compared with separate but otherwise similar DVRs. The basic operation of the DVR and IDVR is briefly explained. The limitations of IDVR operation in terms of active power exchange are explained and, based on that, the expressions governing the steady-state operation of IDVR are derived. The compensation range of an IDVR is compared with that of two separate DVRs. This paper also explores how the limitations in absorbing power from a healthy feeder can narrow the compensation range of an IDVR. After identifying and formulating various limitations in IDVR operation, a design procedure is presented to determine the optimum size (or rating) of the DVRs in an IDVR structure. In the proposed approach, all possible scenarios concerning healthy and faulty feeders are taken into consideration. Examples along with graphs and tables aid in conveying the proposed approach.
Mallika Mooli and N Visali. "Comparing the Compensation Range of IDVR with DVR." International Journal for Scientific Research and Development 4.6 (2016): 1120-1127.
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