Thermal illusion aims to create fake thermal signals or hide the thermal target from the background thermal field to mislead infrared observers,and illusion thermotics was proposed to regulate heat flux with artificia...Thermal illusion aims to create fake thermal signals or hide the thermal target from the background thermal field to mislead infrared observers,and illusion thermotics was proposed to regulate heat flux with artificially structured metamaterials for thermal illusion.Most theoretical and experimental works on illusion thermotics focus on two-dimensional materials,while heat transfer in real three-dimensional(3D)objects remains elusive,so the general 3D illusion thermotics is urgently demanded.In this study,we propose a general method to design 3D thermal illusion metamaterials with varying illusions at different sizes and positions.To validate the generality of the 3D method for thermal illusion metamaterials,we realize thermal functionalities of thermal shifting,splitting,trapping,amplifying and compressing.In addition,we propose a special way to simplify the design method under the condition that the size of illusion target is equal to the size of original heat source.The 3D thermal illusion metamaterial paves a general way for illusion thermotics and triggers the exploration of illusion metamaterials for more functionalities and applications.展开更多
Background: The neural representation of the body is easily altered by integrating multiple sensory signals in the brain. The “Rubber Hand Illusion” (RHI) is one of the most popular experimental paradigms to investi...Background: The neural representation of the body is easily altered by integrating multiple sensory signals in the brain. The “Rubber Hand Illusion” (RHI) is one of the most popular experimental paradigms to investigate this phenomenon. During this illusion, ownership of a rubber hand is temporarily induced. It was shown that external and continuous cooling of the palm enhanced the RHI, suggesting an association between altered the autonomic nervous system regulation and altered the sense of ownership of a specific limb. Purpose: To investigate whether artificially cooling the entire hand for a short period affects the magnitude of the illusion. Methods: Participants immersed their entire hand in cool, cold, or warm water for 1 min before the RHI procedure. Results: We found that cooling the entire hand enhanced the proprioceptive drift during the RHI but not the subjective feeling of ownership. In contrast, warming and intense cooling of the entire hand did not affect the RHI strength. Conclusion: Our results suggest that transient and moderate cooling of the entire hand was sufficient in enhancing the illusory disembodiment of one’s own hand.展开更多
为评估处置库的安全性,核素化学形态信息是准确预测核素的运移行为研究的前提。鉴于我国核能工业的迅速发展以及建立环境中核素的确认需求,在我国开展处置库周围核素的化学形态研究具有十分重要的意义。针对地下水中元素种态分布的研究...为评估处置库的安全性,核素化学形态信息是准确预测核素的运移行为研究的前提。鉴于我国核能工业的迅速发展以及建立环境中核素的确认需求,在我国开展处置库周围核素的化学形态研究具有十分重要的意义。针对地下水中元素种态分布的研究需求,以JAVA为开发工具、MySQL作为数据库、Tomcat为容器,开发了一套B/S架构的元素种态分布模拟软件。针对模拟计算中遇到的化学反应平衡非线性方程组求解收敛困难的问题,引入了根据化学反应势能求解的方法和反应因子控制迭代步长,实现了对化学反应非线性方程快速地求解,并可拓展多相平衡计算。以塔木素地下水中镎为考察对象,利用所开发化学形态模拟软件(simulation software on chemical species,SSCS)计算环境中镎的形态和量,并对比PHREEQC的计算结果,相对偏差在10%以内,针对环境中痕量元素的分布,提供了理论计算的解决方案。展开更多
基金Project supported by the National Natural Science Foundation of China (Grant Nos.52211540005 and 52076087)the Natural Science Foundation of Hubei Province of China (Grant No.2023AFA072)+2 种基金the Open Project Program of Wuhan National Laboratory for Optoelectronics (Grant No.2021WNLOKF004)the Wuhan Knowledge Innovation Shuguang Programthe Science and Technology Program of Hubei Province of China (Grant No.2021BLB176)。
文摘Thermal illusion aims to create fake thermal signals or hide the thermal target from the background thermal field to mislead infrared observers,and illusion thermotics was proposed to regulate heat flux with artificially structured metamaterials for thermal illusion.Most theoretical and experimental works on illusion thermotics focus on two-dimensional materials,while heat transfer in real three-dimensional(3D)objects remains elusive,so the general 3D illusion thermotics is urgently demanded.In this study,we propose a general method to design 3D thermal illusion metamaterials with varying illusions at different sizes and positions.To validate the generality of the 3D method for thermal illusion metamaterials,we realize thermal functionalities of thermal shifting,splitting,trapping,amplifying and compressing.In addition,we propose a special way to simplify the design method under the condition that the size of illusion target is equal to the size of original heat source.The 3D thermal illusion metamaterial paves a general way for illusion thermotics and triggers the exploration of illusion metamaterials for more functionalities and applications.
文摘Background: The neural representation of the body is easily altered by integrating multiple sensory signals in the brain. The “Rubber Hand Illusion” (RHI) is one of the most popular experimental paradigms to investigate this phenomenon. During this illusion, ownership of a rubber hand is temporarily induced. It was shown that external and continuous cooling of the palm enhanced the RHI, suggesting an association between altered the autonomic nervous system regulation and altered the sense of ownership of a specific limb. Purpose: To investigate whether artificially cooling the entire hand for a short period affects the magnitude of the illusion. Methods: Participants immersed their entire hand in cool, cold, or warm water for 1 min before the RHI procedure. Results: We found that cooling the entire hand enhanced the proprioceptive drift during the RHI but not the subjective feeling of ownership. In contrast, warming and intense cooling of the entire hand did not affect the RHI strength. Conclusion: Our results suggest that transient and moderate cooling of the entire hand was sufficient in enhancing the illusory disembodiment of one’s own hand.
文摘为评估处置库的安全性,核素化学形态信息是准确预测核素的运移行为研究的前提。鉴于我国核能工业的迅速发展以及建立环境中核素的确认需求,在我国开展处置库周围核素的化学形态研究具有十分重要的意义。针对地下水中元素种态分布的研究需求,以JAVA为开发工具、MySQL作为数据库、Tomcat为容器,开发了一套B/S架构的元素种态分布模拟软件。针对模拟计算中遇到的化学反应平衡非线性方程组求解收敛困难的问题,引入了根据化学反应势能求解的方法和反应因子控制迭代步长,实现了对化学反应非线性方程快速地求解,并可拓展多相平衡计算。以塔木素地下水中镎为考察对象,利用所开发化学形态模拟软件(simulation software on chemical species,SSCS)计算环境中镎的形态和量,并对比PHREEQC的计算结果,相对偏差在10%以内,针对环境中痕量元素的分布,提供了理论计算的解决方案。
