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尾部倾斜的电池下壳注塑模设计 被引量:5
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作者 徐勇军 原波 《塑料》 CAS CSCD 北大核心 2018年第2期100-102,107,共4页
分析了尾部倾斜的电池下壳塑件的工艺特点,介绍了该塑件注塑模的结构设计和工作过程。根据塑件的外观质量要求,在塑件的非外观面设置点浇口进胶方式,从而避免了在塑件的外表面留下浇注痕迹;为使浇注系统凝料在开模后留在前模侧,采用非... 分析了尾部倾斜的电池下壳塑件的工艺特点,介绍了该塑件注塑模的结构设计和工作过程。根据塑件的外观质量要求,在塑件的非外观面设置点浇口进胶方式,从而避免了在塑件的外表面留下浇注痕迹;为使浇注系统凝料在开模后留在前模侧,采用非标的延伸式唧嘴和前模拉料销拉住凝料;为解决尾部末端细小结构采用镶件成型脱模困难的问题,采用在前模侧设置三组铲基滑块机构成型;塑件的内部扣位通过设置斜顶成型;脱模系统采用顶针、司筒、斜顶联合脱模机构,并用前模限位螺钉、限位拉杆、尼龙开闭器、压缩弹簧等零件控制开模运动顺序和分型定距。模具结构紧凑,运行可靠。 展开更多
关键词 电池下壳 尾部倾斜 前模分型 滑块机构 注塑设计
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The quantified analysis of China's GM cotton yield capacity by C-D function and stochastic frontier model
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作者 张涛 薛宝娣 《Hunan Agricultural Science & Technology Newsletter》 2004年第1期11-13,共3页
Using a modified C D function and stochastic frontier model, the paper analyzed China's cotton yield capacity and found that the yield and technical efficiency of China's cotton planting system can be increas... Using a modified C D function and stochastic frontier model, the paper analyzed China's cotton yield capacity and found that the yield and technical efficiency of China's cotton planting system can be increased by the use of genetically modified (GM) varieties. 展开更多
关键词 GM cotton yield capacity C D function stochastic frontier model
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A hybrid decomposition-boosting model for short-term multi-step solar radiation forecasting with NARX neural network 被引量:3
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作者 HUANG Jia-hao LIU Hui 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第2期507-526,共20页
Due to global energy depletion,solar energy technology has been widely used in the world.The output power of the solar energy systems is affected by solar radiation.Accurate short-term forecasting of solar radiation c... Due to global energy depletion,solar energy technology has been widely used in the world.The output power of the solar energy systems is affected by solar radiation.Accurate short-term forecasting of solar radiation can ensure the safety of photovoltaic grids and improve the utilization efficiency of the solar energy systems.In the study,a new decomposition-boosting model using artificial intelligence is proposed to realize the solar radiation multi-step prediction.The proposed model includes four parts:signal decomposition(EWT),neural network(NARX),Adaboost and ARIMA.Three real solar radiation datasets from Changde,China were used to validate the efficiency of the proposed model.To verify the robustness of the multi-step prediction model,this experiment compared nine models and made 1,3,and 5 steps ahead predictions for the time series.It is verified that the proposed model has the best performance among all models. 展开更多
关键词 solar radiation forecasting multi-step forecasting smart hybrid model signal decomposition
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Method of directly defining the inverse mapping applied to prostate cancer immunotherapy --Mathematical model
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作者 Ophir Nave Miriam Elbaz 《International Journal of Biomathematics》 SCIE 2018年第5期233-254,共22页
In this paper, we apply the method of directly defining the inverse mapping introduced by Liao and Zhao [On the method of directly defining inverse mapping for nonlinear differential equations, Numer. Algorithms 72(4... In this paper, we apply the method of directly defining the inverse mapping introduced by Liao and Zhao [On the method of directly defining inverse mapping for nonlinear differential equations, Numer. Algorithms 72(4) (2016) 989-1020] to the problem of prostate cancer immunotherapy. We extend this method in two directions: first, we apply the method to a system of nonlinear ordinary differential equation, and second, we propose a new technique for finding the base functions in the considered algorithm. 展开更多
关键词 Nonlinear system of differential equations prostate cancer numerical simulations cancer immunotherapy asymptotic analysis.
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