Gradient structureHeterogeneous deformationIn this study, gradient-structured Fe x (CoNi) 90x Cr 10 ferrous medium-entropy alloys were fabricated by using an ultrasonic nanocrystalline surface modification process. The processed alloys with gradient structures exhibited the improved room-temperature yield ...
This paper reports the findings of a study of the grain size dependency of microstructure changes under tension in gradient-structured (GS) Ni, in which the dependency of tension-induced microstructure evolution on the grain size was investigated through a single test. The simultaneously occurring op...
Figure 1. Microstructure and microhardness in a gradient structured (GS) IF steel sample processed by SMAT. a, Cross-sectional morphology of the GS sample, with nanograined (NG) surface layer and central CG layer. b, Microhardness (HV) distribution along the depth. c, Size distribution of gra...
Internal crack characteristics in very-high-cycle fatigue of a gradient structured titanium alloyGradient structure (GS) is commonly designed and processed in engineering materials to improve mechanical properties especially fatigue performance by taking advantage of the strengthened surface. However, whether...
www.nature.com/scientificreports OPEN Internal crack characteristics in very-high-cycle fatigue of a gradient structured titanium alloy Xiangnan Pan1,2, Guian Qian1,2, Shengchuan Wu3,Yanan Fu4 &Youshi Hong1,2* Gradient structure (GS) is commonly designed and processed in engineering...
(3–6). Moreover, engineering a spatial heterogeneous microstructure consist-ing of graded grain sizes, nanoclusters, multi-phases, etc. could also allow HEAs to achieve superior properties (7–9), similar to that having been achieved in traditional hetero-structured metallic materials (10–12)....
(2015) Lotic cyprinid communities can be structured as nest webs and predicted by the stress-gradient hypothesis. Journal of Ani- mal Ecology, 84, 1666-1677.Peoples BK, Blanc LA, Frimpong EA. 2015. Lotic cyprinid communities can be structured as nest webs and predicted by the stress-gradient...
Source:ICLR2023Dynamic Prompt Learning via Policy Gradient for Semi-structured Mathematical Reasoning Code:github.com/lupantech/Pr 背景 数学推理是人类智能的一项核心能力,但对于机器来说,抽象思维和逻辑推理仍然是一个很大的挑战。大规模预训练语言模型,如 GPT-3 和 GPT-4,在文本形式的数学推理(如数学应用题...
Herein, we report a programmable shear-induced dynamic assembly approach to synthesize radially gradient-structured mesoporous carbon nanospheres with tunable core-shell architectures. Detailed mechanism studies reveal that the micelle structures in our system can be well adjusted by changing the shear ...
4)状态转移:转移是确定性的,也就是说这次交互和历史交互合并在一起作为新的状态所隐含的历史交互信息,通过一个回归神经网络输出一个新的状态向量。 系统设计 为了处理大规模离散动作空间带来的问题,本文提出了一种平衡分层聚类树,其结构如上图所示。树的叶子节点表示一个要推荐的物品,非叶子节点则表示一个策略网络...