Particles of high strength material when coated with silver offer a means of obtaining desirable electrical properties and high strength. The coating process employed aqueous ammoniacal silver-nitrate electrolytes with a formaldehyde solution as the reductant. Modifying additives were also applied. The reduction and subsequent deposition of silver occurred selectively on the surface of the tungsten particles. The morphologies of the coated particles were assessed by SEM imaging. The silver was uniformed coated on tungsten powder and its thickness was estimated to be approximately 100nm on the basis of a mass account.

The membranous adhesions could induce implantation failure despite transplantation of high quality of embryo. Clinically, of the patients who have membranous filmy adhesions, endometrial polyps have been found in not infrequently. Thus this study was tried to evaluate the features of endometrial polyps and the effect of endometrial polyps on formation and extents of membranous adhesions in uterine cavity of infertile patients under hysteroscopy. A retrospective study was conducted on 34 infertile patients who were diagnosed as endometrial polyps with membranous adhesions during hysteroscopy from July 2008 to July 2011. Number, size, location and morophologic type of endometrial polyps were investigated. If needed, methylene blue solution was instillated to endometrial cavity to identify membranous adhesions. Then, associations between membranous adhesions with features of endometrial polyps were evaluated. Mean size of endometrial polyp was cm, the bigger of endometrial polyps was, the larger of extents of membranous adhesions. (p<0.05). Endometrial polyps were locate evenly in endometrial cavity as follows: anterior uterine wall, 39.1%; posterior uterine wall, 34.8%; lateral uterine wall, 26.1%; upper: 29.4%, middle: 32.4%, lower segment, 35.3%. Mean number of endometrial polyps was . The pedunculated type was 37.7% and sessile type was 32.4%. There was no statistically significant association of location, number and morphologic type of endometrial polyps with membranous adhesions. In conclusion, hysteroscopy before in vitro fertilization on infertile patients was worthy because of removing of endometrial polyps and membranous adhesions.

This experiment was conducted to clarify the functions of supernodulating characters on seed yield determination through the comparison of agricultural traits of supernodulating soybean mutants, Kanto100, SS2-2, and their parent cultivars, Enrei and Shinpaldalkong2. The supernodulating soybean mutants Kanto100, SS2-2 were previously characterized by their superior capabilities of nitrogen (N) fixation and photosynthesis, and thereby it is expected to offer high yields. However, it is likely to be susceptible to waterlogging during the vegetative growth stage, which frequently occurs in major soybean producing areas. The presentstudy was intended to show the effects of waterlogging on nodulation, N fixation, photosynthesis and growth of Kanto100 and SS2-2.The supernodulating cultivar Kanto100 and its normally-nodulating parental cultivar Enrei, grown in pots,were subjected to waterlogging treatment that was imposed at the successive three vegetative growth stages for two years,2005 and 2006. The waterlogging treatment significantly reduced the number and weight of nodules of both cultivars, and the magnitude of the reduction was more pronounced in Kanto100 and SS2-2. The acetylene reduction activity (ARA) of nodules and apparent photosynthetic rate (AP) of leaves were generally depressed immediately after waterlogging treatment, but both functions exhibited remarkable recovery at the pod-filling stage irrespective of cultivar. No marked cultivar difference was found in the magnitudeof the reduction of ARA per plant and AP measured immediately after waterlogging and at the pod-filling stage irrespective of year, but growth impairment was more pronounced in Kanto100 and SS2-2 in one of the two years. These results indicate that Kanto100 and SS2-2 exhibits a marked decrease in dry matter production by waterlogging, but yield decrease is compensated to level similar to that of Enrei and Shinpaldalkong2 because of its enhanced nodule growth during the recovery stage. The supernodulating cultivar Kanto100 and SS2-2 is more susceptible to waterlogging under certain growing conditions than their normally-nodulating parent cultivar.