Vol. 13 No. 4

Research Papers

• Solar radiation in relation to altitude and humidity

  N. C. Majumdar, S. B. Kaushik

  243-248

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• Propagation of V.H.F. radio waves in mountainous terrains-polarisation effects

  B.L.N. Rao, B. K. Roy, H. B. Mathur, U. C. Gupta, Jai Prakash, P. P. Verma

  249-256

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• An amplifier for fourth order systems

  G. K. Aggarwal

  257-262

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• Stochastic law of the busy period for the simple machine interference problem

  K. Thiruvengadam, N. K. Jaiswal

  263-270

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• Pointwise availability of a system having a general failure time distribution

  R. C. Garg

  271-276

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• On the change of phase when both the phases have different thermal properties

  K. L. Ahuja

  277-282

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• Obique reflection of shock wave

  R. S. Srivastava

  283-284

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• How to improve the buffer stock

  D. K. Kulshrestha

  285-288

• Standardization of method for determining the production of movies picture projective situations

  S. L. Dass

  289-294

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• Insecticidal properties of the fungus trichoderma sp.

  P. N. Agarwal, C. F. Paul

  295-297

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