10,718 Result(s)
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**hui Li
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Article
Vertical eddy diffusion coefficient in Lake Zürich
The vertical eddy diffusion coefficient in Lake Zürich is a strong function of both depth and season. In the deep lake, the annual oxygen consumptions by the oxidation of organic carbon is balanced out by the ...
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Article
Plantlet regeneration from mesophyll protoplasts of Digitalis lanata Ehrh.
Protoplasts were isolated from the mesophyll of Digitalis lanata enzymatically and cultured in a liquid regeneration medium (D2a). Protoplast division occurred at a rate of approximately 30%. Mature cell colonies...
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Chapter
Natural Radionuclides as Tracers for Geochemical Processes in MERL Mesocosms and Narragansett Bay
During 1977 to 1979, water and sediment samples from Narragansett Bay were analyzed seasonally for Th, Ra, Rn, Po, Pb , and U isotopes of the natural U-Th decay series. Selected samples were analyzed for Pu an...
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Chapter
The Transfer of LpDH Activity as Marker in Somatic Hybrid Plant between Tobacco Tumour B6S3 and Normal Tobacco Xanthi
Crown gall is a neoplastic disease in dicotyledonous plants, caused by Ti-plasmid DNA of Agrobacterium tumefaciens (1). A number of specific amino acid derivatives (octopine, nopaline and so on) are found only...
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Article
Why are the chemical compositions of living organisms so similar?
The partition of elements between seawater and the marine solid phases (organisms and pelagic clays) is basically controlled by the same surface adsorption mechanisms as between soil pore water and the land so...
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Chapter
Bivariate Natural Spline Smoothing
The purpose of this paper is to develop a highly efficient stable algorithm for smoothing data given on a grid in the plane. Our approach is to use the natural B-splines introduced for the univariate case in [...
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Article
The design and implementation of the syntax-directed editor generator (SEG)
SEG is a syntax-directed editor generator consisting of three parts: Meta, a meta language which describes BNF-like syntax; a parser, which parses the syntax descriptions written in Meta and generates their dr...
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Article
CAD system of microprogrammed digital systems
This paper describes the Computer Aided Design System of Microprogrammed Digital Systems (CADSMDS). CADSMDS consists of three subsystems: Register Transfer Level Description Language (RTLDL), General Micro Cod...
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Article
Defect and improvement of Two-Time Expansion method in nonlinear oscillations
In this paper, the defect of the Two-Time Expansion method is indicated and an improvement of this method is suggested. Certain examples in which the present method is used, are given. Moreover, the paper show.....
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Article
Measurement of the complex refractive index and complex dielectric permittivity of T.P.S. space shuttle tile materials at millimeter wavelengths
Complex Refractive Index and Dielectric Permittivity studies of presently used space shuttle tile materials at millimeter wavelength region reveal these tiles to exhibit similar absorption characteristics as f...
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Article
Plant regeneration from cotyledon protoplasts of **njiang muskmelon
Cotyledon protoplasts were isolated from seedlings of **njiang muskelon (Cucumis melo var.saccharinus) grown under sterile conditions and cultured in modified Miller medium. High frequency division of the protopl...
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Article
Fifteenth Sir Peter Freyer Memorial Lecture and Surgical Symposium Proceedings of meeting held 14th & 15th September, 1990 at University College, Galway
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Article
Enhanced codeine and morphine production in suspended Papaver somniferum cultures after removal of exogenous hormones
Morphine and codeine accumulation in Papaver somniferum suspension cultures increased markedly after removal of hormones from the medium. Cultures developed hormone self-sufficiency without organogenesis or devel...
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Article
Mixed Metal Oxide Synthesis by Thermolyses of Simple Heteropolymetallic Precursors in Oxygen
Stepwise transmetalation of the neutral molecular target (μ4-O)N4 Cu4 C16(N is a monodentate pyridine) with M(NS)n transmealators (NS is a monanionic S-methyl hydrazinecarbodithioate ligand, M is Co (n = 2 or 3),...
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Chapter and Conference Paper
Effect of Ozone as Active Oxdizing Gas on YBCO Film Deposition by Laser Ablation
The effect of ozone on YBCO film deposition by laser ablation is tested by introducing ozone containing oxygen gas (ozone:5 mol%). The other conditions were kept same as the ones producing high quality c-axis ...
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Article
Seasalt and pollution inputs over the continental United States
The average deposition rate of sea salt chloride over the world continents is about 10 meq m−2 yr−1. Only about 14 ± 1% of chloride in the pollution-corrected world average river is contributed by seasalt aerosol...
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Article
Gamma-ray bursts from high-velocity neutron stars
RECENT observations with the BATSE instrument on the Compton Gamma Ray Observatory show that the distribution of γ-ray bursts is isotropic but radially non-uniform1. Spectral features, time histories and the pres...
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Article
The Fracture Toughness of a Brittle Nickel Silicide Containing the Ductile Phases Ni(Si) and Ni3Si
The fracture toughness at room temperature of a brittle nickel silicide containing the ductile phases Ni(Si) and Ni3Si has been investigated. The microstructure was comprised of a brittle nickel silicide matrix, ...
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Chapter
Plant Regeneration from Protoplasts Of Higher Plants In China
The Protoplast and its reproduction provide a desirable means for plant genetic manipulation including gene transfer, genome transfer by protoplast fusion, and somaclonal variation. It is also a useful tool fo...
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Article
The cystic fibrosis mutation (ΔF508) does not influence the chloride channel activity of CFTR
The cystic fibrosis transmembrane conductance regulator (CFTR) is a phosphorylation-regulated Ch− channel. In most mammalian cells, the functional consequences of the most common CF mutation, ΔF508-CFTR, cannot b...
