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India as a country is absolutely leading in terms of the number of published scientific research papers on the topic of the two-stage mechanical oscillator of academician Veljko Milković. The latest work was published on the subject of a pendulum water pump at the Buddha Institute of Technologysituated in the city of Gorakhpur, located in the Indian state of Uttar Pradesh.

In this paper, authors Rahul Srivastava, Arshad Habib, Mohd Aquib, Ramjeet Prasad and Rahul Kumar Singh clearly state the advantages of applying a two-stage mechanical oscillator to a reciprocating hand water pump. The introductory part states:

One important thing of a pump with a pendulum is that the work is alleviated or in simple terms it makes work rather easier when is compared with a traditional hand water pump. By the use of pendulum based water pumping system we can increase the efficiency of the plant and reduce the effort, cost of production, production time, and manpower requirement. The research done fill today is concentrated on the working and effectiveness of the mechanism only. Considering all of the advantages of the mechanism it was decided to use it for lifting water with the help of reciprocating pump such that the input to the mechanism is given by humans which is comparatively less than the effort applied by humans to lift water using hand pumps directly

For the purposes of this student scientific-research work, a prototype was made that was used to perform measurements and prove the high efficiency of the water pump with a pendulum. This proof is, among other things, performed in relation to another type of mechanism, the so-called rotary inverted pendulum (RIP) presented by the Indian Institute of Communication Technology in Roorkee, India. This mechanism has been proposed and is already being used by farmers in India. In this scientific research paper, they state that the pendulum water pump is a far more efficient model than the proposed one.

Read the scientific research paper below.

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