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您的检索式：作者名="Xinxian Ma"
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| 1 | Information acquisition system of multipoint soil surface height variation for profiling mechanism of seeding unit of precision corn planter显示文摘The emergence rate and vitality of maize are directly affected by the sowing depth,and the uniformity of this depth is an important performance indicator of a planter,while the effective soil surface height information acquisition is the prerequisite for ensuring the accuracy of sowing depth control.The soil surface height variation acquisition system of a precision corn planter often produces profiling errors when performing active profiling due to interference from ground debris.In this study,a multipoint soil surface height variation information acquisition system was investigated,which consists of a ranging sensor group and a microcontroller unit(MCU)using a data comparison and screening method.The structure and specifications of the ranging sensors were determined according to the soil surface height variation and debris size,and a nonessential profiling control program was developed.Performed tests on the information acquisition system indicated that the measurement accuracy of the system was 3 mm,and when advancing at a speed of 8 km/h,the accuracy of the profiling decision and the system stability were 97.1%and 94.1%,respectively,indicating that the system was capable of nonessential profile control.The designed ranging system could provide a reference for the design of a ground information acquisition system of precision planters with an active profiling mechanism. | Bo Zhang Wei Zhang Liqiang Qi Haiba Fu Lijuan Yu Rui Li Yue Zhao Xinxian Ma | 2018 | International Journal of Agricultural and Biological Engineering2018，11，6： | 4 |
| 2 | Therapeutic effect of medical glue combined with the great omentum in severe tunica muscularis injury显示文摘Twenty-seven patients with severe colon trauma treated in the Shaoxing People’s Hospital from 1995 to 2006 were retrospectively analyzed.The patients with severe tunica muscularis injury were treated by med-ical glue combined with the greater omentum during operations.The initial result was encouraging.All patients were cured with no anastomotic leakage or abs-cess.Therefore,reasonable use of medical glue combined with the greater omentum can not only improve the cur-ative rate but also reduces postoperative complications for patients with colon injury. | Peitu REN Baochun LU Xinxian RUAN Zhiliang CHEN Yuliang MA Hong FU | 2008 | Frontiers of Medicine2008，2，2： | 0 |
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