Let p be a large prime such that p−1 has some large prime factors, and let θ ∈ ZZp be an r-th power residue for all small factors of p− 1. The corresponding Diffie-Hellman (DH) distribution is (θx, θy, θxy) where x, y are randomly chosen from ZZp. A recently formulated assumption is that given p, θ of the above form it is infeasible to distinguish in reasonable time between DH distribution and ...

Utilization of the renewable resources in district heating systems can reduce use fossil fuels, operating costs and protect environment. In this study, an integrated hybrid system consisting concentrating photovoltaic/thermal collectors (PV/T), geothermal (GSHP) absorption (AHP) heat pumps is considered for heating. The thermodynamic performance at various conditions explored through detailed s...

A . X . Z h u a,b,c,d, J . L i u d, F . D u d, S . J . Z h a n g c, C . Z . Q i n c, J . B u r t d, T . B e h r e n s e & T . S c h o l t e n e aSchool of Geography Science, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China, bJiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, 1 Wenyuan Road, Nanjing 210023, China, cState ...

Ambient concentrations of aldehydes in relation to Beijing Olympic air pollution control measures J. C. Gong, T. Zhu, M. Hu, L. W. Zhang, H. Cheng, L. Zhang, J. Tong, and J. Zhang School of Public Health and Environmental and Occupational Health Sciences Institute (EOHSI), University of Medicine and Dentistry of New Jersey, NJ 08854, USA State Key Laboratory of Environmental Simulation and Poll...

X. C. Yuan, K. D. Yin, W.-J. Cai, A. Y. T. Ho, J. Xu, and P. J. Harrison Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China Division of Environment, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China Australian Rivers Institute, Griffith University, Brisbane, QLD...