Radiative heat transfer in the steady two-dimensional flow of Walters＇ B fluid with a non-uniform heat source/sink is investigated. An incompressible fluid is bounded by a stretching porous surface. The convective bo...Radiative heat transfer in the steady two-dimensional flow of Walters＇ B fluid with a non-uniform heat source/sink is investigated. An incompressible fluid is bounded by a stretching porous surface. The convective boundary condition is used for the thermal boundary layer problem. The relevant equations are first simplified under usual boundary layer assumptions and then transformed into a similar form by suitable transformations. Explicit series solutions of velocity and temperature are derived by the homotopy analysis method （HAM）. The dimensionless velocity and temperature gradients at the wall are calculated and discussed.展开更多
I shall deserve the Reputation of having beene ye first to lay the grounds of two Sciences,"wrote Thomas Hobbes in 1646,"this of Optiques and yt other of natural Justice."For him,optics and politics wer...I shall deserve the Reputation of having beene ye first to lay the grounds of two Sciences,"wrote Thomas Hobbes in 1646,"this of Optiques and yt other of natural Justice."For him,optics and politics were two prongs of the same effort:to naturalize humans’relations to their world and to each other.It was Descartes’Dioptrique,handed to him by Kenelm Digby in 1637,that cleared for him the path:naturalizing humans required physicalizing vision–as Kepler taught in his own optics–and removing from nature of all cognitive entities such as"species visible and intelligible."Between 1639 and 1646 Hobbes produced three professional,innovative treatises on optics founded upon"the opinion of the excellent Monsieur Des Cartes"but,finally,diverging from it in the most crucial point.For Descartes,ridding"Matter[of all]such Descriptions…as belong but to Spiritual Beings"required a spiritual,non-material entity to interpret the physical effects of the senses.Hobbes,however,insisted that the interpretation can and should be understood physically and mechanically,for"Vision is the judgement itself.展开更多
一、男性英雄的白日梦──从《沃尔特·米蒂的秘密生活》(The Secret Life of Walter Mitty)小说原著说起1939年,詹姆士·瑟伯(James Thurber)在《纽约客》(The New Yorker)发表短篇小说《沃尔特·米蒂的秘密生活》[1],内...一、男性英雄的白日梦──从《沃尔特·米蒂的秘密生活》(The Secret Life of Walter Mitty)小说原著说起1939年,詹姆士·瑟伯(James Thurber)在《纽约客》(The New Yorker)发表短篇小说《沃尔特·米蒂的秘密生活》[1],内容讲述男主角沃尔特·米蒂(Walter Mitty)是一个冒失,能力备受怀疑的人,现实生活上,亦由妻子主导。展开更多
文摘Radiative heat transfer in the steady two-dimensional flow of Walters＇ B fluid with a non-uniform heat source/sink is investigated. An incompressible fluid is bounded by a stretching porous surface. The convective boundary condition is used for the thermal boundary layer problem. The relevant equations are first simplified under usual boundary layer assumptions and then transformed into a similar form by suitable transformations. Explicit series solutions of velocity and temperature are derived by the homotopy analysis method （HAM）. The dimensionless velocity and temperature gradients at the wall are calculated and discussed.
文摘I shall deserve the Reputation of having beene ye first to lay the grounds of two Sciences,"wrote Thomas Hobbes in 1646,"this of Optiques and yt other of natural Justice."For him,optics and politics were two prongs of the same effort:to naturalize humans’relations to their world and to each other.It was Descartes’Dioptrique,handed to him by Kenelm Digby in 1637,that cleared for him the path:naturalizing humans required physicalizing vision–as Kepler taught in his own optics–and removing from nature of all cognitive entities such as"species visible and intelligible."Between 1639 and 1646 Hobbes produced three professional,innovative treatises on optics founded upon"the opinion of the excellent Monsieur Des Cartes"but,finally,diverging from it in the most crucial point.For Descartes,ridding"Matter[of all]such Descriptions…as belong but to Spiritual Beings"required a spiritual,non-material entity to interpret the physical effects of the senses.Hobbes,however,insisted that the interpretation can and should be understood physically and mechanically,for"Vision is the judgement itself.
文摘一、男性英雄的白日梦──从《沃尔特·米蒂的秘密生活》(The Secret Life of Walter Mitty)小说原著说起1939年,詹姆士·瑟伯(James Thurber)在《纽约客》(The New Yorker)发表短篇小说《沃尔特·米蒂的秘密生活》[1],内容讲述男主角沃尔特·米蒂(Walter Mitty)是一个冒失,能力备受怀疑的人,现实生活上,亦由妻子主导。
