Browsing Article by Issue Date

Browsing Article by Issue Date

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  • MUKHERJEE, R.N.; PRASAD, SHIV (1987)
    An existence theorem for optimal control is obtained for a general nonstandard cost functional of fractional type in this work. As an application of our result we can derive an existence theorem for optimal control given ...
  • Srivastava, V.K.; Prakash, R. (Springer India, 1987-03)
    This paper presents the cumulative damage in glass fibre reinforced plastic composite during loading and unloading at regular intervals using the continuous monitoring of ultrasonic test instrument. The result shows that ...
  • Kumar, D.; Prasad, Ch.D.; Parkash, O. (Springer India, 1987-06)
    Measurements of DC electrical resistivity and Seebeck coefficient on the perovskite system La1-x Pb x-δ Co1-x Ti x O3-δ for 0·2≤x≤0·9 have been made in the temperature range 300-800 K. AC conductivity, σ a.c, of all the ...
  • Chaubey, S.; Singh, V.; Ramachandrarao, P. (Springer India, 1987-11)
    In the zinc-bismuth system, a monotectic reaction occurs at 689 K and 0·6 at.% Bi composition. Rapid solidification of the as-cast monotectic alloy led to a micromorphology in which bismuth was uniformly and bimodally ...
  • Parkash, O.M.; Kumar, D.; Kumar, R. (Springer India, 1988-05)
    Scebeek coefficient and DC resistivity of the solid solution Lal _~Na~Col _~Nb~O3 (001 ~< x <~0-99) have been measured in the temperature range 300-900 K. Seebeck coefficient is positive for all compositionsover the ...
  • Srivastava, V.K. (Springer India, 1988-05)
    An ultrasonic technique has been used to evaluate the degradated fatigue life of glass fibre/zirconia hybrid composites in different concentrations of sodium chloride and sulphuric acid. Results indicate that reduction in ...
  • Parkash, O.M.; Kumar, D.; Kumar, R. (Springer India, 1988-05)
    Seebeck coefficient and DC resistivity of the solid solution La1 -x Na x Co1 -x Nb x O3 (0·01 ≤x ≤ 0·99) have been measured in the temperature range 300-900 K. Seebeck coefficient is positive for all compositions over the ...
  • Parkash, O.M.; Kumar, D.; Kumar, R. (Springer India, 1988-05)
    Seebeck coefficient and DC resistivity of the solid solution La1 -x Na x Co1 -x Nb x O3 (0·01 ≤x ≤ 0·99) have been measured in the temperature range 300-900 K. Seebeck coefficient is positive for all compositions over the ...
  • Parkash, O.M.; Durga Prasad, Ch.; Kumar, D. (Springer India, 1988-09)
    The possibility of the formation of solid solution in the system Ca1 -x La x Ti1 -x Co x O3 for x≤0·5 has been investigated. X-ray diffraction studies show that compositions with x=0·05, 0·1, 0·2, 0·3 and 0·5 prepared by ...
  • Parkash, O.M.; Durga Prasad, Ch.; Kumar, D. (Springer India, 1988-09)
    The possibility of the formation of solid solution in the system Ca1 -x La x Ti1 -x Co x O3 for x≤0·5 has been investigated. X-ray diffraction studies show that compositions with x=0·05, 0·1, 0·2, 0·3 and 0·5 prepared by ...
  • Durga Prasad, C.; Tewari, H.S.; Kumar, D.; Parkash, O. (Springer India, 1988-12)
    Dielectric behaviour of samples of the system Ca1 -x La x Ti1 -x Co x O3 with x ≤ 0·20 has been studied in the temperature range 300-525 K as a function of frequency. The strong dispersion of e{open} and D observed in these ...
  • Parkash, O.; Chaturvedi, N.; Tiwari, M.; Kumar, D. (Springer India, 1989-03)
    The spin-state equilibria of cobalt ions in the system La1-x Na x Co1-x Nb x O3 (x≤0·40) has been studied by measuring its magnetic susceptibility as a function of temperature in the range 300-600 K. It is found that the ...
  • Singh, R.N.; Upadhyay, H.O. (Springer India, 1989-10)
    The steep electron density gradient, the magnetic field curvature and the effect of gravity make the Venus ionopause region unstable. The onset of flute instability in the Venus ionopause plasma has been studied. The ...
  • Joarder, A.; Sarma, D.S. (1991)
    The microstructures of a 0.2C-3.6Ni steel are studied after isothermal transformation over a temperature range of 600–400°C after different times up to 10 ks at each temperature. It was observed that the transformation at ...
  • Pandey, J.N.; Singh, O.P. (1991-04)
    It is shown that a bounded linear operator T from L�(Rn) to itself which commutes both with translations and dilatations is a finite linear combination of Hilbert-type transforms. Using this we show that the ρ-norm of the ...
  • Sinha, R.K.; Sinha, R.K. (Springer India, 1991-08)
    Slip-processing technique has been used to fabricate tapes and alumina-supported films of superconducting YBa2Cu3O7-x . Good densification and connectivity are revealed by scanning electron microscopy. Both the tape and ...
  • Mukherjee, R.N. (1991-12)
    Egudo derived some duality theorems for Multi-objective programs using the concept of efficiency coupled with some generalized convexity assumptions on the objective and constraint functions. The main results of the present ...
  • Ojha, S.N.; Pandey, O.P.; Kumar, M.; Ramachandra, C.; Tripathi, B. (1992)
    Al–4Cu–20Pb alloy was spray deposited at a gas pressure of 1.4 MPa and melt flow rate of 1.6 kg min−1. The microstructure of the preform exhibited equiaxed morphology with grain size varying from 20–25 μm. Uniform distribution ...
  • Sharma, T.; Gupta, R.C.; Prakash, B. (1992)
    In the present investigation an attempt has been made to determine the effect of reduction rate on the swelling behaviour of iron ore pellets. For this purpose two Indian iron ore fines from Bailadila and Noamundi deposits ...
  • Mohan, S.; Agarwala, V.; Ray, S. (1992)
    Stircast Al-Pb Metal-Metal composites have been produced at a high rotational speed of 53 s-1 with different lead contents and with the same lead content but different rotational speeds of 53, 37 and 25 s-1 in a stircasting ...

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