The result shows that for both PCL homopolymers and PCL-b-PEG block copolymers, the spherulitic linear growth rate first increases with molecular weight and reaches a maximum, then decreases as molecular weight increases. Crystallization temperature has greater influence on the spherulitic growth rate of polymers with higher molecular weight.

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Results The values of bone density in weight-bearing, superolateral non weight-bearing and inferomedial non weight-bearing areas after femoral neck fracture in patients with osteoarthritis were lower than normal.

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The results showed that the different molecular weight of the complexes of Chitosan with copperor zinc, the complexes of carboxymethyl Chitosan with copper and the low-molecular-weight iii complexes of sulfation chitosan with copper had excellent inhibition on Valsa mali. The low-molecular-weight complexes of chitosan with copper had inhibition on Botyosphaeria berengeriana. All of samples had no inhibition on Fusarinm oxysporium.f.sp.vasinfectum and Alternaria Solani under this test conditions.

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Moreover, it added two bands of higher molecular weight and one band which molecular weight is about 25KD, but lost two bands of smaller molecular weight. The bands of peroxidase isozymes showed vitrous plantlets lost three bands such as Rf0.245, Rf0.309, Rf0.382; but added one band of Rf0.200, and the activity of Rf0.136 was increased.

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The results from the experiment are: the amount of all micro-powders that grain sizes are less 0.044 mm should be less than 35% in weight, and the value of coarse q and attenuate q should be respectively 0.23 and 0.32, and the additive amount of active a-alumina and calcium alumina cement should be respectively 7% and 4% in weight, meanwhile, the best dispersant is PMAA-NH4 in the non-microsilica system; while the value of two q should be respectively 0.21 and 0.29, the amount of active a-alumina, microsilica and calcium alumina cement should be respectively 6%, 2% and 4% in weight, the best dispersants are sodium hexamer taphosphate and Na2P3Oio in the microsilica system.

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The blood pressure, urine protein, body weight, haematocrit, weight of placenta, length and weight of fetus were all measured. The histological change of the placenta and kidneys were also observed.

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As compared with the traditional irrigation-traditional fertilization, the following results of the improved optimized irrigation-optimized fertilization were obtained: significantly higher nitrogen use efficiency; the like tiller number per unit area, percentage of the tiller ear number/the tiller number, the ear number per unit area, the greatly reduced grain number per ear, and significantly heavier weight of 1, 000 grains; a trifle taller plants; shorter base internode length, a bit more weight per unit internode length, longer internode length under ear; almost the same LAI values in middle and later stages; coincident process of dry matter accumulation from straight growth onwards, a little more dry matter accumulation amount from earing to maturity; a little longer flag leaf, 2〓 leaf, 3〓 leaf (but the three leaves were shorter than those of the optimized irrigation-traditional fertilization) and shorter 4〓 leaf from top, a bit reduced total area of these leaves; almost the same leaf thickness, mean canopy leaf tilt angle, light extinction coefficient , ratio of light penetration in the upper, middle and lower parts of the wheat canopy, and fair plant type; almost the same senescence process of flag leaf; and increased root amount in 0-120cm soil layer and smaller rate of progressive decrease of the root length density and root weight density with soil getting deep, which can strengthen the resistance to adverse conditions such as water stress in the later stage.

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