Currently, people investigating the magnetic properties of ferromagnets at low temperatures have found that there exists a class of magnetic alloys such as SmCo<sub>3.5</sub>Cu<sub>1.5</sub>, S...Currently, people investigating the magnetic properties of ferromagnets at low temperatures have found that there exists a class of magnetic alloys such as SmCo<sub>3.5</sub>Cu<sub>1.5</sub>, Sm（CoCuFeTi）<sub>6.8</sub>, Tb(Fe<sub>0.7</sub>Al<sub>0.3</sub>)<sub>2</sub>, Dy(Fe<sub>0.9</sub>Ga<sub>0.1</sub>)<sub>2</sub>, of which the curves of coercive force H<sub>c</sub> versus temperature T are logarithmic shapes at high temperatures and ap-展开更多
This paper deals with the mass movement processes on the Fildes Peninsula, King George Island. Based on numerous field investigation, the authors consider that the slope mass movement and periglacial form on the penin...This paper deals with the mass movement processes on the Fildes Peninsula, King George Island. Based on numerous field investigation, the authors consider that the slope mass movement and periglacial form on the peninsula have an internal relationship in genesis, reflecting in there main aspects. 1, All patterns of mass movement are developed on the slope surface; 2, different -order mass movement and periglacial type show their space-time distribution rules (their development stages); 3, The slope mass movement are developed from the periglacio - geomorphic processes. More detailed works have been done, such as fixed reapeated surveying whose results are concord and with the typical characteristics above mentimed very well.展开更多
深基坑挡土墙是工程实践中常用的支护结构,对限制深基坑变形和预防工程事故起着重要的作用。深基坑工程往往会布置多个不同深度的测点,然而现有研究大多只预测了单个测点的未来侧移,浪费了其余测点的监测数据。以杭州市某深基坑工程为背...深基坑挡土墙是工程实践中常用的支护结构,对限制深基坑变形和预防工程事故起着重要的作用。深基坑工程往往会布置多个不同深度的测点,然而现有研究大多只预测了单个测点的未来侧移,浪费了其余测点的监测数据。以杭州市某深基坑工程为背景,建立基于贝叶斯优化的多输出长短期记忆(Long short term memory,LSTM)神经网络模型,在保证模型最优性能的情况下,采用历史监测数据输入对深基坑的多个测点进行预测,并单独提取墙体每日最大侧移预测值进行分析。研究结果表明:结合贝叶斯优化的多输出LSTM神经网络模型在深基坑墙体多测点侧移预测方面展现出理想的预测效果,模型R^(2)达到了0.94,每日最大侧移预测值的模型R^(2)为0.91,略低于整体预测。展开更多
基金Project supported by the National Natural Science Foundation of China
文摘Currently, people investigating the magnetic properties of ferromagnets at low temperatures have found that there exists a class of magnetic alloys such as SmCo<sub>3.5</sub>Cu<sub>1.5</sub>, Sm（CoCuFeTi）<sub>6.8</sub>, Tb(Fe<sub>0.7</sub>Al<sub>0.3</sub>)<sub>2</sub>, Dy(Fe<sub>0.9</sub>Ga<sub>0.1</sub>)<sub>2</sub>, of which the curves of coercive force H<sub>c</sub> versus temperature T are logarithmic shapes at high temperatures and ap-
文摘This paper deals with the mass movement processes on the Fildes Peninsula, King George Island. Based on numerous field investigation, the authors consider that the slope mass movement and periglacial form on the peninsula have an internal relationship in genesis, reflecting in there main aspects. 1, All patterns of mass movement are developed on the slope surface; 2, different -order mass movement and periglacial type show their space-time distribution rules (their development stages); 3, The slope mass movement are developed from the periglacio - geomorphic processes. More detailed works have been done, such as fixed reapeated surveying whose results are concord and with the typical characteristics above mentimed very well.
文摘深基坑挡土墙是工程实践中常用的支护结构,对限制深基坑变形和预防工程事故起着重要的作用。深基坑工程往往会布置多个不同深度的测点,然而现有研究大多只预测了单个测点的未来侧移,浪费了其余测点的监测数据。以杭州市某深基坑工程为背景,建立基于贝叶斯优化的多输出长短期记忆(Long short term memory,LSTM)神经网络模型,在保证模型最优性能的情况下,采用历史监测数据输入对深基坑的多个测点进行预测,并单独提取墙体每日最大侧移预测值进行分析。研究结果表明:结合贝叶斯优化的多输出LSTM神经网络模型在深基坑墙体多测点侧移预测方面展现出理想的预测效果,模型R^(2)达到了0.94,每日最大侧移预测值的模型R^(2)为0.91,略低于整体预测。
