3,364 research outputs found
Research on Distant Hybridization Between Melissutus ruthenicus c.w Chang and Medicago sativa Zhaodong
Full text linkDistant hybridization can be used to combine the characteristics of different species and genus to produce a new variety. By crossing the wild species Melissutus ruthenicus C.W. Chang (2n = 2x = 16) which exhibits cold-, drought- and salt-alkali resistance with the local high-yielding cultivar Medicago saliva Zhaodong (2 n = 4 x = 32), it was hoped to synthesize the fine characteristics of two parents, to obtain a new intermediate variety of alfalfa. This paper reports on the advance of the hybridization, the results of cytological studies and the tendency of variations of filial generations as a guide to the breeding
Heating mode transition in the capacitive mode of inductively coupled plasma and the electron temperature change during the E-H transition
No full textTheoretical investigation of the evolution of electron energy distribution functions in inductively coupled discharges
No full textThe inductively coupled plasma (ICP) device is one of the high-density plasma sources being used for the present integrated circuit etching process on an ultra-large scale. Here, we develop a Fokker-Planck code for the ICP source, and evaluate an electron energy diffusion coefficient based on the solution of the wave equations for an ICP reactor. The electron energy distribution function (EEDF) dependence on various external parameters, such as wave frequency, gas pressure and magnetic field, is investigated using the Fokker-Planck code. The effects of changing external parameters on ICP heating characteristics are also discussed. It is shown that the heating of low-energy electrons is enhanced with increasing system collisionality, which is defined as the ratio of collision frequency to effective wave frequency. (C) 2003 Elsevier Science B.V. All rights reserved
Magnetic properties, phase evolution and microstructure of directly quenched bulk Pr–Fe–B–Nb magnets
No full textStrong Zn concentration effect on the soldering reactions between Sn-based solders and Cu
No full textThermoelectric Power Studies on the CuO2 Plane Contributions of (Y1-xCax)Ba2Cu3O6.1 and (Pb0.5Cd0.5)Sr2(Y1-xCax)Cu2O7
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