Focal region field of a two dimensional Gregorian system coated with chiral medium is analyzed at high frequency. Maslov's method is used because the Geometrical Optics approximation fails at focal points. Maslov...Focal region field of a two dimensional Gregorian system coated with chiral medium is analyzed at high frequency. Maslov's method is used because the Geometrical Optics approximation fails at focal points. Maslov’s method combines the simplicity of ray theory and the generality of Fourier transform. Fields patterns are calculated numerically and the results are plotted. The effects of thickness of chiral layer, chirality parameter of the chiral medium and permittivity of the medium are analyzed. The problem of simple dielectric layer is discussed as a special case of this problem.展开更多
瞻礼单(liturgical calendar or ordo)是以公历的形式记载天主教会全年礼仪的日历,因里面标注着天主教的主日、节日、守斋日、圣人纪念日,方便基督徒参加教会礼仪而得名。瞻礼单在明朝末年由西方传教士带入中国,在以后的传播中,这一西...瞻礼单(liturgical calendar or ordo)是以公历的形式记载天主教会全年礼仪的日历,因里面标注着天主教的主日、节日、守斋日、圣人纪念日,方便基督徒参加教会礼仪而得名。瞻礼单在明朝末年由西方传教士带入中国,在以后的传播中,这一西洋年历不仅在教会内使用,也逐渐被中国社会所认识。本文主要对瞻礼单的传入、制作、功用以及国人对西历的理解诸问题进行分析讨论,从中寻觅中西文化交流与碰撞的一些特点。展开更多
Three new worldwide calendars are proposed and compared in this paper. None of them requires any departure from an existing tradition to divide years on lean and leap. Although all three are pretty accurate, it is dem...Three new worldwide calendars are proposed and compared in this paper. None of them requires any departure from an existing tradition to divide years on lean and leap. Although all three are pretty accurate, it is demonstrated that the Julian calendar with one additional amendment is the simplest and the most suitable for implementation.展开更多
文摘Focal region field of a two dimensional Gregorian system coated with chiral medium is analyzed at high frequency. Maslov's method is used because the Geometrical Optics approximation fails at focal points. Maslov’s method combines the simplicity of ray theory and the generality of Fourier transform. Fields patterns are calculated numerically and the results are plotted. The effects of thickness of chiral layer, chirality parameter of the chiral medium and permittivity of the medium are analyzed. The problem of simple dielectric layer is discussed as a special case of this problem.
文摘瞻礼单(liturgical calendar or ordo)是以公历的形式记载天主教会全年礼仪的日历,因里面标注着天主教的主日、节日、守斋日、圣人纪念日,方便基督徒参加教会礼仪而得名。瞻礼单在明朝末年由西方传教士带入中国,在以后的传播中,这一西洋年历不仅在教会内使用,也逐渐被中国社会所认识。本文主要对瞻礼单的传入、制作、功用以及国人对西历的理解诸问题进行分析讨论,从中寻觅中西文化交流与碰撞的一些特点。
文摘Three new worldwide calendars are proposed and compared in this paper. None of them requires any departure from an existing tradition to divide years on lean and leap. Although all three are pretty accurate, it is demonstrated that the Julian calendar with one additional amendment is the simplest and the most suitable for implementation.
