The refractive index of GaAs has been measured in the wavelength range from 0.97 to 17 mm, which covers nearly the entire transmission range of the material. Linear and quadratic temperature coefficients of the refractive index have been fitted to data measured between room temperature and 95 °C. In the midinfrared, the refractive index and temperature dependence are obtained from analysis of e...

Variations of instantaneous heart rate appears regularly oscillatory in deeper levels of anesthesia and less regular in lighter levels of anesthesia. It is impossible to observe this “rhythmic-to-non-rhythmic” phenomenon from raw electrocardiography waveform in current standard anesthesia monitors. To explore the possible clinical value, I proposed the adaptive harmonic model, which fits the de...

In the field of mathematics, there are many branches study, especially in graph theory, mathematically a is pair sets, which consists non-empty set whose members called vertices and distinct unordered pairs edges. One example from group coprime graph, where defined as two with different x y neighbors if only (|x|,|y|)=1. this author discusses Harmonic Index Gutman Coprime Graph Integer Group Mo...

The logarithm of the Estrada index has been recently proposed as a spectral measure to characterize the robustness of complex networks. We derive novel analytic lower bounds for the logarithm of the Estrada index based on the Laplacian spectrum and the mixing times of random walks on the network. The main techniques employed are some inequalities, such as the thermodynamic inequality in statist...

In the current study, we quantitatively evaluated aging and schizophrenia using statistical indices reflecting enhancement and suppression at arbitrary frequencies using photic stimulation (PS). This index corresponds to the Z-score, which reflects the distance between two amplitude distributions at an arbitrary frequency at rest and during PS. We measured EEGs from three groups: 50 healthy sub...

We analyze the dynamics of Chinese comparative advantage as measured by export shares and the Balassa index using 3-digit and 4-digit sectors for the period 1970 – 1997. We use novel tools to identify periods of rapid structural change and the persistence of comparative advantage, such as Galtonian regressions, probability-probability (p-p) plots, and the Harmonic Mass index, to supplement the ...

‎In this paper‎, ‎we study the convex combinations of harmonic mappings obtained by shearing a class of slit conformal mappings‎. ‎Sufficient conditions for the convex combinations of harmonic mappings of this family to be univalent and convex in the horizontal direction are derived‎. ‎Several examples of univalent harmonic mappings constructed by using these methods are presented to illustrate...