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排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
不同花生品种侧枝发育动态与产量性状研究 总被引:1,自引:0,他引:1
花生一级侧枝发育具有不均衡性。第一、二对侧枝出现早,伸长快,其他一级侧枝出现晚,伸长慢。86036-26-1第一、二对侧枝发育相对较早,而其他一级侧枝发育较晚;海花1号和豫花1号第一、二对发育相对较晚,而其他一级发育较快;豫花7号和鲁花9号居中。海花1号一级侧枝及第一对侧枝的二级侧枝数最多,86036-26-1的一级侧枝数及第一对侧枝的二级侧枝数量少。在花针期之前第一对侧枝的伸长与主茎基本同步;花针期之后,第一对侧枝伸长速度超过主茎。86036-26-1的一级侧枝长及株高居首位。86036-26-1第一、二对侧枝饱果率,产量居第一,豫花7号居第二。海花1号虽然荚果数较多,但第一、二对侧枝孢果率较低,产量也较低;鲁花9号居中。 相似文献
992.
993.
994.
Xie Ming Guo Xiaoyu Wang Yanchun 《保鲜与加工》1993,(6):134-137
A minimum ring-band mathematical definition :In the done ring-band, there are at least two inner points and two outer points which scatter staggeringly on the circumference. With this definition as the rule of searching calculation' s ending,a fast numerical algorithm of gaining the minimum ring-band of a closed curve was suggested:Make a ring-band with the four points scattered staggeringly,then replace the old points with new ones continuously until all the points are located within the ring-band. The method was used in an application example to measure the spindle rotating precision of machine tools. 相似文献
995.
《Journal of Cereal Science》2014,59(3):451-456
Brans of 23 traditional and 12 improved (both red and white) rice varieties in Sri Lanka were screened for anti-amylase and anti-glycation activities in vitro. Varieties which showed the highest inhibitory activities at screening were further investigated for anti-glucosidase and glycation reversing as anti-diabetic properties. The same varieties were studied for selected antioxidant properties. Significantly high anti-amylase and anti-glycation activities were observed for bran extracts of red varieties compared to white varieties at screening. Traditional red rice varieties, Masuran, Sudu Heeneti, Dik Wee and Goda Heeneti, exhibited significant and dose dependent anti-amylase, anti-glycation and glycation reversing activities. These varieties also showed marked antioxidant properties. It is concluded that brans of Sri Lankan traditional red rice varieties Masuran, Sudu Heeneti, Dik Wee and Goda Heeneti may be potential food supplements for diabetes. 相似文献
996.
Research on Relationship between the Level of Urbanization and the Growth of Real Estate Investment 下载免费PDF全文
The population proportion index is usually introduced to measure the level of urbanization, which is an important index to the national economy. The fast development of urbanization would inevitably cause the increase of the investment in real estate industry. Introducing the Granger Test of Causality analytical method, in this paper the relationship between the level of urbanization and the investment in real estate industry from 1986 to 2003 in China is analyzed. It reveals that both of them are on the stage of constant up - rising, and the correlation index of 0. 205 shows that the relationship between them is a mutual promoting causality. 相似文献
997.
Yang Chunwei 《保鲜与加工》1988,(4)
This paper studies the tactics choice and its improvement in the development of economy by means of Markovian Decision Programming. An optimal decision and the maximum expected revenue can be obtained. The . paper also presents the procedures and formulas of numerical evaluation. 相似文献
998.
During the pre - stressing of the unbonded prestressed concrete wide flat beam - waffle slab system, the displacements and strains of slab and the prestressed concrete beams were site - measured and the results were analyzed. The prestressing construction was simulated by finite element program. The prestressing efficiency of the unbonded prestressed concrete wide flat beam - waffle slab system was discussed. It indicates that the prestressing efficiency was affected by the in -plane stiffness of slab. 相似文献
999.
YANG Xue-heng CHEN An HE Guang-hong FENG Xiao-juan WANG Ying-fang ZHAN Jie TANG Zhi-liang 《保鲜与加工》2001,(3):137-141
Some ideas are given about using out-clock, CPU and anti-T-net of D/A card for getting to the intelligent control of scanning voltage ,low-filter and hign-filter of STM; logarithm amplifier for tunnelling current contraction. At last, some applications and questions when it running about STM are discussed. 相似文献
1000.
Magnetorheological materials are a class of smart materials whose reological properties may be rapidly varied by application of magnetic field. By a simple mechanical mold, a visco-plastic model for the materials is developed. It is shown that the model can describe the variation of the mechanical properties for the Magnetorheological materials in the different magnetic field. The result is shown that the model can characterize the mechanical properties of Magnetorheological Materials in plastic and viscous variation. 相似文献