Toy geyser experiment: periodicity, operating conditions and coupling

Controls on Geyser Periodicity

(Carnegie Institution of Washington, Washington, DC, 1919); P. M. Brown, M. K. Hughes, C. H. Baisan, T. W. Swetnam, A. C. Caprio, Tree-Ring Bull., in press]. 11. R. J. Hartesveldt, Nat. Hist. 73, 12 (1964); N. L. Stephenson, D. J. Parsons, T. W. Swetnam, in Proceedings-17th Tall Timbers Fire Ecology Conference, Tallahassee, FL, 18 to 21 May 1989 (Tall Timbers Research Station, Tallahassee, FL, ...

Periodicity, planarity, residual dipolar coupling, and structures.

The periodic behavior of residual dipolar couplings (RDCs) arising from nucleic acid and protein secondary structures is shown to be more complex and information-rich than previously believed. We have developed a theoretical framework which allows the bond vector orientation of nucleic acids and the peptide plane orientations of protein secondary structures to be extracted from their Dipolar wa...

A mixed-TEHD analysis and experiment of journal bearings under severe operating conditions

The increasingly high demands for compact design require journal bearings to work under severe operating conditions. A steadystate mixed-TEHD (thermo-elasto-hydrodynamic) model for journal bearings has been developed. The model considers the fluid flow in the gap formed by rough surfaces, asperity contact, surface thermoelastic deformations, and a temperature–pressure–viscosity relationship for...

Conditions on Periodicity for Sum-Free Sets

Dynamic Analysis of Distillation with Thermal Coupling for Different Operating Conditions

Thermally coupled distillation sequences (TCDS) exhibit a more complex structure, with recycle streams, that appear to affect their controllability properties. One potential solution to this problem is considering the operation of TCDS under conditions that do not provide minimum energy consumption. The basic idea is that if one changes the operation point, the control properties might change a...