《古舟子咏》是英国浪漫主义杰出代表,"湖畔派诗人"之一塞缪尔·泰勒·柯尔律治(Samuel Taylor Coleridge)的经典诗作。此诗神秘怪诞,寓意丰富。而笔者所关心的是信天翁为何被射杀,及这一简单故事情节在全诗中的作用及与主...《古舟子咏》是英国浪漫主义杰出代表,"湖畔派诗人"之一塞缪尔·泰勒·柯尔律治(Samuel Taylor Coleridge)的经典诗作。此诗神秘怪诞,寓意丰富。而笔者所关心的是信天翁为何被射杀,及这一简单故事情节在全诗中的作用及与主题的关系。本文将从作者的创作技巧,宗教象征意义和心理学角度三方面来分析。展开更多
UV is a high-energy electromagnetic radiation that has been widely used in industrial production and the scientific research domain. In this work, a deep UV light emission was obtained using triboelectrification induc...UV is a high-energy electromagnetic radiation that has been widely used in industrial production and the scientific research domain. In this work, a deep UV light emission was obtained using triboelectrification induced plasma discharge without any extra power supply. By a mechanical friction between polymer and quartz glass, the triboelectric charges cause a changing electric field, which may bring plasma discharge of low pressure gas (Ar-Hg) and give out 253.7 nm irradiation. The UV light caused by continuous friction can excite a trichromatic phosphor and afford a bright white light emission. A UV sterilization experiment shows that -98% of Escherichia coil can be killed in 30 min by UV irradiation, which reveals that a self-powered sterilization apparatus with good sterilization effect was fabricated. This work provides a novel design to fabricate a self- powered UV light emitting device using low-frequency mechanical friction and realizes the coupling of triboelectrificafion and plasma luminescence, which may further expand the application of UV light in special circumstances.展开更多
文摘《古舟子咏》是英国浪漫主义杰出代表,"湖畔派诗人"之一塞缪尔·泰勒·柯尔律治(Samuel Taylor Coleridge)的经典诗作。此诗神秘怪诞,寓意丰富。而笔者所关心的是信天翁为何被射杀,及这一简单故事情节在全诗中的作用及与主题的关系。本文将从作者的创作技巧,宗教象征意义和心理学角度三方面来分析。
文摘UV is a high-energy electromagnetic radiation that has been widely used in industrial production and the scientific research domain. In this work, a deep UV light emission was obtained using triboelectrification induced plasma discharge without any extra power supply. By a mechanical friction between polymer and quartz glass, the triboelectric charges cause a changing electric field, which may bring plasma discharge of low pressure gas (Ar-Hg) and give out 253.7 nm irradiation. The UV light caused by continuous friction can excite a trichromatic phosphor and afford a bright white light emission. A UV sterilization experiment shows that -98% of Escherichia coil can be killed in 30 min by UV irradiation, which reveals that a self-powered sterilization apparatus with good sterilization effect was fabricated. This work provides a novel design to fabricate a self- powered UV light emitting device using low-frequency mechanical friction and realizes the coupling of triboelectrificafion and plasma luminescence, which may further expand the application of UV light in special circumstances.