The electronic structure and optical properties of intrinsic and doped Ca _2 Ge have been calculated by using the first-principles calculation method based on density functional theory.The doping content of As were 2.08% and 1.04%, respectively, and the doping concentrations of Ga were same with As.The band gap of intrinsic Ca _2 Ge is 0.556 eV, an

This article examines the reporting strategy and gender quadruple topical ointment for dogs perspective in Chinese media coverage of COVID-19 news.The article employs a mixed-method approach to analyze news reports, using quantitative statistics and qualitative semantic materials that complement each other.The study found that the media construct a

Objective: this study aimed to evaluate the association of breakfast intake with cardiometabolic risk factors in a nationally-representative sample of Iranian pediatrics.Methods: the study participants considered of 5,625 school students aged 10-18 years, studied in the third survey of the national school-based surveillance system (CASPIAN-III).The

We present a proof-of-principle study about the use of a sensor for the nondestructive monitoring of strength development in hydrating concrete.The nondestructive evaluation technique is based on the propagation of highly nonlinear solitary waves (HNSWs), which are non-dispersive mechanical waves that can form alphaville clothing and travel in high

In the present study, a bionic flapping mechanism of a spatial six-bar configuration was designed to transform a single rotation of a motor into a three degrees of freedom “flapping–twist–swing” cooperative motion of a flapping wing.The kinematics model of the flapping mechanism movement was constructed.The flapping trajectory of the wing b