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| 1 | Analysis of Contact Melting Driven by Surface Heat Flux Around a Cylinder显示文摘在动人的水平圆柱的热来源附近阶段变化材料融化的接触,在它的自己的重量下面下降了,在这篇文章被调查。在经常的表面热流动下面的一个融化的模型被建立。厚度和压力分布里面的分析结果融化层,稳定的融化速度被使用融化理论的接触获得。融化的法律被讨论,并且由温度差别与接触融化的相比开车。伪稳定的融化速度被热来源密度的热来源,和变化的热流动决定,这被发现在融化上有更少的效果速度。 | Y.S.Zhao W.Z.Chen F.R.Sun Z.Y.Chen | 2008 | Journal of Thermal Science2008，17，1： | 3 |
| 2 | NUMERICAL SIMULATION OF INDUCTION SKULL MELTING PROCESS FOR TITANIUM-ALUMINIUM BASE ALLOY显示文摘The mathematics model for temperature field of water-cooling copper crucible induction skull melting process was established. The program for simulating temperature field of melting process was developed with finite element method. The temperature field of the melting process for Ti-47Al-2Cr-2Nb alloy was calculated. During melting period, the temperature is raised gradually along radius augmentation direction. The elements of the charge near the crucible wall are molten first. The center elements of the charge are molten last. The melting time of the center element is just that of all the charge melting. The melting time of Ti-47Al-2Cr-2Nb alloy is 15min. In which, the charge was heated by low power 80kW for 9min and by high power 300kW for 6min. When melting Ti-47Al-2Cr-2Nb alloy, the loading power is nearly direct proportion to melt temperature. Increasing loading power may raise melt temperature. The best melting power of Ti-47Al-2Cr-2Nb alloy is 305-310kW. This is identical with the melting test and has guidance sense to the melting process of actual titanium alloy. | Z.Y.Chen L.J.Xu F.T.Kong Q.Shu Y.Y.Chen | 2004 | Acta Metallurgica Sinica(English Letters)2004，17，6： | 2 |
| 3 | Bending energy of a vesicle to which a small spherical particle adhere:An analytical study显示文摘On the basis of Helfrich's bending energy model, we show that the adsorption process of a small spherical particle to a closed vesicle can be analytically studied by retaining the leading terms in an expansion of the shape equation. Our general derivation predicts the optimal binding sites on a vesicle, where the local membrane shape of the binding site could be non-axisymmetric before the continuous adhesion transition takes place. Our derivation avoids directly solving the shape equation and depends on an integration of the contact-line condition. The results are verified by several examples of independent numerical solutions. | 曹思勤 韦广红 Jeff Z.Y.Chen | 2015 | Chinese Physics B2015，24，9： | 0 |
| 4 | Designs to Improve Capability of Neural Networks to Make Structural Predictions显示文摘A deep neural network model generally consists of different modules that play essential roles in performing a task.The optimal design of a module for use in modeling a physical problem is directly related to the success of the model.In this work,the effectiveness of a number of special modules,the self-attention mechanism for recognizing the importance of molecular sequence information in a polymer,as well as the big-stride representation and conditional random field for enhancing the network ability to produce desired local configurations,is numerically studied.Network models containing these modules are trained by using the well documented data of the native structures of the HP model and assessed according to their capability in making structural predictions of unseen data.The specific network design of self-attention mechanism adopted here is modified from a similar idea in natural language recognition.The big-stride representation module introduced in this work is shown to drastically improve network's capability to model polymer segments of strong lattice position correlations. | Tian-Yao Wang Jian-Feng Li Hong-Dong Zhang Jeff Z.Y.Chen | 2023 | Chinese Journal of Polymer Science2023，41，9： | 0 |
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