There are many different means to determine physical parameters of stars and their abundances by spectral analysis.In our work we draw our attention to the rotational and microturbulenc velocities as well as metallicities for the stars of known effective temperature and surface gravity.We carried fits of LTE synthetic spectra to the Parasites obser
At present, the walking and drilling operations of the mine kilometer directional drilling rig are all realized by the manual operation of drillers.The intelligence level is low.At present, there is no research on the correlation between the action type of kilometer directional drilling rig and the vibration state of the hydraulic pump station.Ther
Changes of protein and nucleic acid concentrations in micropylar and chalazal parts of the endosperm during exponential and stationary phases of embryo growth (Clivia miniata Regel) were examined.The following facts were established: 1.evident two-phase synthesis of protein, DNA and RNA in the endosperm, 2.existence of chalaza-micropyle concentrati
Corresponding to global environment problems in recent year, the technology for reducing fuel consumption and exhaust gas emission of engine was needed.Simulation of transient engine response is needed to predict engine performance that frequently experience rapid changes of Stem Mount Gasket speed.The aim of this research is to develop a non-linea
Abstract Background Documenting perpetrators of human rights violations enables effective prosecution and can help prevent future atrocities.Doing so calls for collecting reliable data using verifiable and transparent methodology.We present methods used to document crimes and identify alleged perpetrators implicated in the 2017 attacks against Rohi