manganese(Mn)
1.An experiment was conducted to investigate the optimal manganese(Mn) level of ducklings by using corn-soybean meal diet(containing dietary Mn 19ppm). 210 one day-old white Peking ducklings were randomly divided into seven groups of 30 each. The supplementations of Mn(reagent grade MnSO_4·H_2O) were 0.20, 45, 60, 85.110 and 135 ppm for three weeks respectively.
4.Objective:To study the effect of beta-carotene(BC) on adriamycin(ADM)induced changes of expression of manganese superioxide dismutase(Mn SOD)mRNA,copper-zinc superioxide dismutase(Cu-Zn SOD) mRNA and glutathioneperoxidase(GPx) mRNA in myocardial tissue of rats,and to explore themechanism of BC antagonizing the reduced activities of Mn SOD、Cu-Zn SOD、GPx in myocardial tissue of rats induced by ADM.
7.Manganese-containing superoxide dismutase (Mn-SOD) activities in lung cancer tissues from 5 patients with pulmonary carcinoma were measured by the nitrite formation method, lipid peroxide (LPO) values being measured bv spectrophometry of thiobarbituric acid reaction.
8.The cathode materials Li 1+x Mn 2O 4(0≤x<1) for rechargeable lithium ion batteries were synthesized by hydrothermal synthesis method using chemical manganese dioxide(CMD) as Mn precursor and LiNO 3 or LiOH·H 2O as Li precursors, respectively, and characterized by XRD, BET, TEM, TGA and electrochemical testing.
9.Four LiMn2O4 cathodes were prepared by melt-impregnation method in which or LiOH·H2O is used as Li source and electrolytic manganese dioxide (EMD) or chemical manganese dioxide (CMD) as Mn source. The structure of the materials was characterized by XRD and the lattice parameters of the samples were calculated by using least square method. The specific surface area was determined by BET method and the electrical conductivity of the samples was also determined.
10.3. Using cryogenic mechanical tests, TEM, SEM, and XRD etc. analysis methods, the microstructure and mechanical behavior of a nitrogen strengthened high manganese austenitic steel 32Mn-7Cr-0.7Mo-0.3N prepared by AIM (air induction melting) andAIM+ESR were investigated, and the corresponding theoretical questions were discussed.
