Journal of the Hebei Academy of Sciences 

About: Journal of the Hebei Academy of Sciences is an academic journal. The journal publishes majorly in the area(s): The Internet & Detection limit. It has an ISSN identifier of 1001-9383. Over the lifetime, 107 publications have been published receiving 136 citations.

Privacy preservation cloud storage architecture research

Abstract: With the development of the information industry,the amount of data is rapidly growing in a geometrically way.It is difficult for the traditional Stand-alone mode to meet so huge data storage task and the cost of maintaining hardware and software is high.The emergence of cloud storage provides a solution for the above problems,but it has made us doubts on the privacy security of the cloud storage that troubles of divulging users' privacy information.First,reviewed the work has made in the prvicy preservation of cloud storage,then proposed a encryption searching privacy preservation architecture which based on an asymmetric challenging-answering authentication mode.At the end of the paper we discuss the future direction of the cloud storage data privacy security.

Synthesis and performance research of polyaspartic acid graft copolymers

Abstract: Polyaspartic acid graft copolymers containing different content hydroxy were synthesized.Their performances of inhibiting calcium carbonate and calcium phosphate,dispersing ferric oxide were tested.As a result,scale inhibition rate of the agent on calcium carbonate was 100% with a dosage of 8 mg/L and the mole ratio of hydroxy and polysuccinimide 0.2.Inhibition rate of the agent on calcium phosphate was 98.2% with a dosage of 8mg/L and the mole ratio of hydroxy and polysuccinimide 0.8.The performance of dispersing ferric oxide was the best with a dosage of 30mg/L and the mole ratio of hydroxy and polysuccinimide 0.8.When the mole ratio of hydroxy and polysuccinimide is 0.8,the all-around performances were the best.

Analysis of critical technologies on cloud storage security

Abstract: With the popularity of cloud computing,the cloud storage has also been widely concerned and supported.But the cloud of data stored in their own securit y problem hinderes its marketing applications.The cloud storage is not only secu rity issues traditional security fully addressed.It involves a numbe r of new key technologies and management techniques.The st orage and retrieval of data encryption,access control ciphertext of several key technologies are described in this paper.

Cyclic redundancy checks in USB

Abstract: The mathematical basis behind CRC in USB is described.VB programs to generate these CRCs are provided and two examples are used to clear up possible ambiguous areas.

Application of wavelet analysis in recognizing the electrical appliances

Abstract: The wave of electrical appliances being used in the student apartment was analyzed and discussed with wavelet analysis.The energy of the electrical current and the different layers after wavelet transform and their ratios were calculated,which were the base to the recognizing of the electrical appliances.The results show that they can carry out the recognizing of the high-power load and computers effectively and concisely.