The academic research on the spatial distribution of pension institutions is mostly from perspective constructing or improving analysis methods. It not considered that with development social science and technology, facilities services elderly care will develop in direction intelligence. Exploring intelligence level Shanghai’s has important practical significance for optimizing service resource...

Tourism is distinctly regional with respect to the distribution of tourism resources, tourist attractions and supply, spatial continuity activities. Using point-of-interest data from 2166 in Yangtze River Delta, this study analyzes pattern their influencing factors by applying methods nearest proximity index, kernel density analysis, standard deviation ellipse, hotspot superposition analysis. T...

Improving water utilization efficiency can effectively alleviate the contradiction between shortage and demand in process of rapid urbanization. The middle lower reaches Yellow River Basin, China, are characterized by shortage. In order to improve use efficiency, taking 43 prefecture-level units this region as study area, industrial agricultural is calculated based on undesired SBM-DEA model. T...

A novel technique for obtaining a single-layer single-feed dual frequency rectangular microstrip antenna with protruding semi ellipse for s-band communication is proposed and demonstrated. By protruding semi ellipse of appropriate dimension close to one of the edge, the rectangular patch has been shown to realize dual-frequency broadside radiations. This dual frequency operation increases its a...

A function from the domain (x-set) to codomain (y-set) connects each x element precisely one y element. Since x-point originating corresponds two y-points on graph of a closed curve (i.e., circle, ellipse, superellipse, or ovoid) in rectangular (Cartesian) diagram, it does not fulfil function’s requirements. This non-function phenomenon obstructs nonlinear regression application for fitting obs...

BACKGROUND In systematic reviews and meta-analysis, researchers often pool the results of the sample mean and standard deviation from a set of similar clinical trials. A number of the trials, however, reported the study using the median, the minimum and maximum values, and/or the first and third quartiles. Hence, in order to combine results, one may have to estimate the sample mean and standard...