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  • 1
    Electronic Resource
    Electronic Resource
    Plantlet regeneration from suspension cultures of Valeriana wallichii DC
    Amsterdam : Elsevier
    Plant Science 81 (1992), S. 111-115 
    Details
    ISSN: 0168-9452
    Keywords: Valeriana wallichii ; morphogenesis ; plant regeneration
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(92)90030-P
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  • 2
    Electronic Resource
    Electronic Resource
    Propagation of Valeriana wallichii DC. using encapsulated apical and axial shoot buds
    Amsterdam : Elsevier
    Plant Science 60 (1989), S. 111-116 
    Details
    ISSN: 0168-9452
    Keywords: Valeriana wallichii ; encapsulation ; shoot bud explants
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(89)90050-2
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  • 3
    Electronic Resource
    Electronic Resource
    Growth and morphogenesis of plant tissue cultures under mineral-oil
    Amsterdam : Elsevier
    Plant Science 74 (1991), S. 249-254 
    Details
    ISSN: 0168-9452
    Keywords: mineral oil overlay ; morphogenesis ; reduced growth
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(91)90053-B
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  • 4
    Electronic Resource
    Electronic Resource
    Artificial seed production in the male bamboo Dendrocalamus strictus L.
    Amsterdam : Elsevier
    Plant Science 87 (1992), S. 109-113 
    Details
    ISSN: 0168-9452
    Keywords: Dendrocalamus strictus ; artificial seeds ; bamboo
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(92)90198-U
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  • 5
    Electronic Resource
    Electronic Resource
    Radiation-induced changes in the chemical composition ofSolanum tuberosum cv.Kufri Sindhuri tubers after germination (1973)
    Springer
    Potato research 16 (1973), S. 53-56 
    Details
    ISSN: 1871-4528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary The chemical composition of60Co γ-irradiated potato tubers (Solanum tuberosum cv.Kufri Sindhuri) after germination shows significant changes. The contents of ‘total’ solanine, a glycoalkaloid, citric and ascorbic acids and total solids increase. Malic acid decreases to some extent while pyroglutamic acid does not follow any regular pattern. Except glutamic acid all other free amino-acids increase. Under the influence of low doses titratable acids show an appreciable increase but a 4-krad dose retards their synthesis. No appreciable change has been noted for nitrogen percentage. The size of the starch granules increases with higher doses and the quantity of anthocyanin decreases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02360593
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  • 6
    Electronic Resource
    Electronic Resource
    Computation of three-dimensional transonic flow using a cell vertex finite volume method for the Euler equations (1996)
    Springer
    Acta mechanica 115 (1996), S. 161-177 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary A cell vertex finite volume method for the solution of the three dimensional Euler equations has been developed. The computations can be carried out block-wise after dividing the computational domain into smaller blocks to reduce the memory requirement for a single processor computer and also to facilitate parallel computing. A five stage Runge-Kutta scheme has been used to advance the solution in time. Enthalpy damping, implicit residual smoothing, local time stepping, and grid sequencing are used for convergence acceleration. The solution procedure has been studied in detail by computing transonic flow over the ONERA M-6 wing, using both C-H and O-H type structured grids. The effects of changing the artificial viscosity parameters and the distance of the far field boundary are also investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01187436
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  • 7
    Electronic Resource
    Electronic Resource
    Computation of three-dimensional transonic viscous flow using the JUMB03D code (1996)
    Springer
    Acta mechanica 119 (1996), S. 181-197 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary A vertex based finite volume method for the solution of the three dimensional Reynolds averaged Navier-Stokes equations has been developed. The computations can be carried out blockwise after dividing the computational domain into smaller blocks to reduce the memory requirement for a single processor computer and also to facilitate parallel computing. A five stage Runge-Kutta scheme has been used to advance the solution in time. Enthalpy damping, implicit residual smoothing, local time stepping, and grid sequencing are used for convergence acceleration. In order to get smooth convergence for transonic, viscous flows, the artificial dissipation has been modified by using the time step for advective and diffusive equations. An algebraic turbulence model has been used to determine the turbulent eddy viscosity. The method has been used to compute transonic flow over a cropped delta wing and the ONERA M-6 wing, and subsonic flow over a launch vehicle configuration. The results obtained show good agreement with available experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01274247
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  • 8
    Electronic Resource
    Electronic Resource
    Navier-Stokes analysis of vortex flow over a cropped delta wing (1998)
    Springer
    Acta mechanica 131 (1998), S. 69-87 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary The vortex flow over a 65° cropped delta wing with round leading edge, atM ∞=0.85 and Re∞=2.38×106, has been analyzed for 10°, 20°, and 30° angles of attack. A vertex based finite volume code, JUMBO3D, with an algebraic turbulence model has been used to solve the Reynolds Averaged Navier-Stokes (RANS) equations. An H−O type grid generated by a hybrid elliptic-algebraic method has been used here, and a significant improvement of the results over an O−O type grid has been obtained. The results are compared with available experimental data. The complex physical phenomena due to interactions among the primary, secondary, and tertiary vortices, cross-flow and terminating shocks, and turbulent boundary layer, as visualized from the numerical solutions obtained are presented and discussed here.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178245
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  • 9
    Electronic Resource
    Electronic Resource
    Extraction and extraction chromatographic separation of minor actinides from sulphate bearing high level waste solutions using CMPO (1995)
    Springer
    Journal of radioanalytical and nuclear chemistry 191 (1995), S. 279-289 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Bench-Scale studies on the partitioning and recovery of minoractinides from the actual and synthetic sulphate-bearing high level waste (SBHLW) solutions have been carried out by giving two contacts with 30% TBP to deplete uranium content followed by four contacts with 0.2M CMPO+1.2M TBP in dodecane. The acidity of the SBHLW solutions was about 0.3M. In the case of actual SBHLW, the final raffinate contained about 0.4% α-activity originally present in the HLW, whereas with synthetic SBHLW the α-activity was reduced to the background level.144Ce is extracted almost quantitative in the CMPO phase,106Ru about 12% and137Cs is practically not extracted at all. The extraction chromatographic column studies with synthetic SBHLW (aftertwo TBP contacts) has shown that large volume of waste solutions could be passed through the column without break-through of actinide metal ions. Using 0.04M HNO3〉99% Am(III) and rare earths could be eluted/stripped. Similarly 〉99% Pu(IV) and U(VI) could be eluted.stripped using 0.01M oxalic acid and 0.25M sodium carbonate, respectively. In the presence of 0.16M SO 4 2− (in the SBHLW) the complex ions AmSO 4 + , UO2SO4, PuSO 4 2+ and Pu(SO4)2 were formed in the aqueous phase but the species extracted into the organic phase (CMPO+TBP) were only the nitrato complexes Am(NO3)3·3CMPO, UO2(NO3)2·2CMPO and Pu(NO3)4·2CMPO. A scheme for the recovery of minor actinides from SBHLW solution with two contacts of 30% TBP followed by either solvent extraction or extraction chromatographic techniques has been proposed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02038224
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  • 10
    Electronic Resource
    Electronic Resource
    Extraction of Am(III) by mixture of dihexyl N,N-diethylcarbamoylmethyl phosphonate and tributyl phosphate in benzene from nitric acid solutions (1991)
    Springer
    Journal of radioanalytical and nuclear chemistry 152 (1991), S. 127-135 
    Details
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Extraction of Am(III) by dihexyl N,N-diethylcarbamoylmethyl phosphonate (CMP) in benzene from nitric acid solutions (pH 2.0 to 6.0M) has been studied. High extraction of Am(III) by CMP from 2–3M HNO3 was observed. The species extracted was found to be Am(NO3)3·3CMP. The extraction was also done with mixtures of CMP+TBP and CMP+TOPO, where mixed species were extracted in the organic phase. The back-extraction experiments gave an efficient back-extraction of Am(III) by pH 2.0 (HNO3) from the loaded CMP+TBP phase but a poor back-extraction from the loaded CMP+TOPO phase. The loading of Nd(III) by mixture of CMP and TBP was ∼50% of the CMP concentrations at a total Nd(III) concentration of 0.182M. The thermodynamic parameters of Am(III) extraction by a mixture of CMP and TBP were evaluated by temperature variation method, which suggests that the two-phase reaction is stabilized by enthalpy and opposed by entropy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02042147
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