Let GB(n,d)GB(n,d) be the set of bipartite graphs with order n and diameter d . This paper characterizes the extremal graph with the maximal spectral radius in GB(n,d)GB(n,d). Furthermore, the maximal spectral radius is a decreasing function on d. At last, bipartite graphs with the second largest spectral radius are determined.
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on a survey table is determined with an inclinometer, allowing tilt to be measured in 1-degree increments in the frontal and sagittal planes. With this device, cast reorientation is simplified and tilt modifications can be Chi Flat Iron Uk Plug accomplished accurately because of direct visualization of tilt measurements in the 2 planes. (J Prosthet Dent 2003;89:76-8.)
We report fourteen Descemet's membrane disinsertions occurring during anterior segment surgery which were successfully managed. Being aware of this condition can lead to prevention of late postoperative corneal decompensation. Methods of prevention and management are discussed. Surgical handling of the condition depends on the size of Descemet's stripping.
1H and 13C n.m.r. spectra of asphaltenes separated from a heavy crude oil using n-pentane at different temperatures were measured. Average molecular parameters and hypothetical structural models for these asphaltenes were proposed using n.m.r. measurements, calculated molecular weight of unit sheets and elemental analysis.