The concentrations and isotopic composition of He, Ne and Ar in 29 chondrites and 1 achondrite have been determined. Detailed accounts of the experimental technique used and the reproducibility and accuracy obtained are given. The U,Th-He4, and K-Ar ages derived from our results are in agreement with the already known age distributions of the different chondrite classes. Our measurements have r...

Methods Seventy-three consecutive patients (49 men, mean age 51.2 years) with BAV who underwent TTE, DSCT, cardiac MRI and valve surgery were enrolled in this study. All CMR studies were performed with a 1.5 T whole-body system using an 8-element phased array surface coil. Two independent radiologists assessed the type of BAV (classified according to number of raphe), functional status of the B...

Classical relativistic field theory is used as a basis for a general discussion of the problem of splitting up the total energy-momentum tensor ofa system into contributions from its component subsystems. Both the Minkowski and Abraham forms (including electrostriction) arise naturally in alternative split-up procedures applied to a nondispersive dielectric fluid. The case of an electromagnetic...

We consider a time varying wireless fading channel, equalized by an LMS linear equalizer in decision directed mode (DD-LMS-LE). We study how well this equalizer tracks the optimal Wiener equalizer. Initially we study a fixed channel. For a fixed channel, we obtain the existence of DD attractors near the Wiener filter at high SNRs using an ODE (Ordinary Differential Equation) approximating the D...

With China's continuous opening to the outside world, changes in international environment and operation of cross-border RMB settlement system (CIPS), scale has fluctuated continuously. In response this phenomenon, authors collected sorted out total amount payments from 2011 2020 time sequence data China, then use five AR models including ARMA, GARCH(1.1), EGARCH(1.1), PARCH(1.1), CARCH(1.1) fi...

Given an n × n Jacobi matrix Jn, a sequence Xn of discrete variables, xr ∈ Xn, r = 0, 1, . . . , is introduced by means of a difference equation DE(Xn), which together with its initial conditions IC(Xn), is fully determined by the characteristic equation CE(Jn) of Jn. Using what seems to be an ideal choice of the IC(Xn) detailed discussion is given of the properties of the xr, and of the deriva...

This study aims to identify types of virtual/augmented reality–based brand experiences (VR/AR experiences) understand their impacts on consumer–brand relationships. For this study, were divided into four types: entertainment, aesthetic, educational, and real-escape experiences. Today, consumers can experience In a survey who participated in was conducted. A total 518 the survey. To verify hypot...