Given developments in urbanization, agricultural, and technological practices, the diet and lifestyle of developed countries has changed dramatically over the course of the last century[1].
-- In this paper, by using two sets of composite data of developed and undeveloped depressions over the South China Sea, we analyze and compare the dynamic structures, the heating fields and the vorticity budget resid...-- In this paper, by using two sets of composite data of developed and undeveloped depressions over the South China Sea, we analyze and compare the dynamic structures, the heating fields and the vorticity budget residuals of two different types of depressions. Our conclusions are as follows:The two types of depressions are similar in thermodynamical and dynamical structures. The main differ ences are : in the high layer of developed depression there is a divergence field, with a center near the zero line of vertical wind shear, and over undeveloped depression, the divergence field is weaker and the vertical wind at its center is greater than 5 m s-1. The thermodynamical field of the former is asymmetrical and that of the latter is quasi - symmetrical. As far as the dynamics structure is concerned, the convergence in the lower layer and the difference of divergence between the upper and lower layers of developed depression is three tmies larger than that of undeveloped depression. The upward motion and heating field at the center of developed depression is also stronger than that of undeveloped one.The vorticity budget of the two types of depressions is mainly determined by the divergence term, the vorticity advection term and the vertical transport term. The residual term is also important.The principal contribution comes from the divergence term . This is more significant for developed depression than for undeveloped depression.展开更多
基于Web of Science和中国知网数据库,使用知识图谱可视化软件CiteSpace对国外1986年至2023年1101篇文献与国内1997年至2023年203篇文献进行计量分析与可视化呈现,对国内外神经伦理学发展情况进行对比分析。研究发现:在规模分布维度,该...基于Web of Science和中国知网数据库,使用知识图谱可视化软件CiteSpace对国外1986年至2023年1101篇文献与国内1997年至2023年203篇文献进行计量分析与可视化呈现,对国内外神经伦理学发展情况进行对比分析。研究发现:在规模分布维度,该领域文献数量呈持续上升趋势,国外研究合作广泛,国内研究相对较少且多为独立研究;在热点前沿维度,国外研究核心话题包括“道德判断与个体情感”“神经技术与疾病治疗”“增强技术与神经增强”“技术融合与大数据”,国内研究的核心话题为“伦理学的神经科学”“道德增强与自由”“脑机接口与未来”;在发展演进维度,国外研究经历了探索建立、发展整合、创新突破三个阶段,国内研究则经历了起步、探索、深入发展三个阶段。展开更多
文摘Given developments in urbanization, agricultural, and technological practices, the diet and lifestyle of developed countries has changed dramatically over the course of the last century[1].
文摘-- In this paper, by using two sets of composite data of developed and undeveloped depressions over the South China Sea, we analyze and compare the dynamic structures, the heating fields and the vorticity budget residuals of two different types of depressions. Our conclusions are as follows:The two types of depressions are similar in thermodynamical and dynamical structures. The main differ ences are : in the high layer of developed depression there is a divergence field, with a center near the zero line of vertical wind shear, and over undeveloped depression, the divergence field is weaker and the vertical wind at its center is greater than 5 m s-1. The thermodynamical field of the former is asymmetrical and that of the latter is quasi - symmetrical. As far as the dynamics structure is concerned, the convergence in the lower layer and the difference of divergence between the upper and lower layers of developed depression is three tmies larger than that of undeveloped depression. The upward motion and heating field at the center of developed depression is also stronger than that of undeveloped one.The vorticity budget of the two types of depressions is mainly determined by the divergence term, the vorticity advection term and the vertical transport term. The residual term is also important.The principal contribution comes from the divergence term . This is more significant for developed depression than for undeveloped depression.
文摘基于Web of Science和中国知网数据库,使用知识图谱可视化软件CiteSpace对国外1986年至2023年1101篇文献与国内1997年至2023年203篇文献进行计量分析与可视化呈现,对国内外神经伦理学发展情况进行对比分析。研究发现:在规模分布维度,该领域文献数量呈持续上升趋势,国外研究合作广泛,国内研究相对较少且多为独立研究;在热点前沿维度,国外研究核心话题包括“道德判断与个体情感”“神经技术与疾病治疗”“增强技术与神经增强”“技术融合与大数据”,国内研究的核心话题为“伦理学的神经科学”“道德增强与自由”“脑机接口与未来”;在发展演进维度,国外研究经历了探索建立、发展整合、创新突破三个阶段,国内研究则经历了起步、探索、深入发展三个阶段。
