We give geometric conditions that are necessary and sufficient for the existence of Sinai–Ruelle–Bowen (SRB) measures $$C^{1+\alpha }$$ surface diffeomorphisms, thus proving a version Viana conjecture. As part our argument we an original method constructing first return Young towers, every hyperbolic measure, in particular SRB can be lifted to such tower. This relies on new general result branc...

Polyvinyl chloride materials used in cooling towers always lead to damage and low efficiency due the hot humid environment. This paper suggests a glass fiber reinforced material for better performance. An optimal fractal distribution-of fibers composite matrix is experimentally obtained when dimensions are between 0.6 0.9.

This paper proposes on-line optimal operation planning and control of cogeneration systems (CGS). CGS is usually connected to various facilities such as refrigerators, reservoirs, and cooling towers. In order to generate optimal operation planning for CGS, startup/shutdown status and/or input/output values of the facilities for each control interval should be determined. The facilities may have...

The Article is a case study regarding a rule governing cooling water towers for power plants promulgated pursuant to the Clean Water Act (”CWA”). It analyzes the history of the Office of Information and Regulatory Affairs (”OIRA”) within the Office of Management and Budget (”OMB”), and its influence in compelling the Environmental Protection Agency (”EPA”) to conduct cost-benefit analysis of al...

To determine trends and clinical and epidemiologic features of legionellosis in Singapore, we studied cases reported during 2000-2009. During this period, 238 indigenous and 33 imported cases of legionellosis were reported. Cases were reported individually and sporadically throughout each year. Although the annual incidence of indigenous cases had decreased from 0.46 cases per 100,000 populatio...