This paper considers the parallels between changes in Shanghai’s brick usage through history and city’s shifting identities. Taking a new angle on studies of Chinese wall, author looks at most basic element wall – context social political postcolonial theory proposes that it was identity, precipitated by both internal external forces, have ultimately driven selection subsequent interpretation t...

in this paper the effects of transmittance, dispersion angle and diffusion length on the quantum efficiency of solar cells (qesc) have been simulated and investigated. optical path technic is used for simulation. the results show that base thickness, diffusion length, dispersion angle, number of optical confinement path and transmission angles have an extremely effects on the qesc. simulation r...