Papers by Author: Ning Wang

Abstract: As a new technology, cloud computing brings a change to business models and ways of working and provides convenience to the way that people work, study and life. User data of cloud computing are stored in the "cloud". The loss of data and the disclosure of privacy will give users a significant loss, so that people are increasingly concerned about its security. The industry of cloud computing has a huge market growth prospects, but compared to other security products, cloud computing access risks exist in the data integrity, data recovery, and privacy, and risks of safety assessment in electronic services, business compatibility and third-party audit regulations.

Abstract: We have directly observed the transformation from octacalcium phosphate (OCP) to hydroxyapatite (HA) in transmission electron microscope (TEM). The phase transformation was induced by electron beam irradiation in TEM. Several TEM techniques were employed to examine the crystal structure change, including bright field images, electron diffraction, high resolution microscopy (HRTEM) and fast Fourier transformation pattern of HRTEM images. The examinations indicate possible hydrolysis reaction in solid state transformation and crystallographic orientation of OCP (010)//HA (010) and OCP (001)//HA (001) which has not been reported previously.