Study of the stochastic clustering on the refractory material surface under the effect of plasma load in the PLM device

Tungsten plates were tested in stationary helium discharges in the PLM device. The duration of discharges in the PLM reached 200 minutes. A distinctive feature of this device is the stationary plasma confinement, which is advantageous for testing fusion materials, including materials of the divertor and first wall of a fusion reactor. During plasma irradiation in the PLM, the thermal load on the surface of the tested plates was more than 1 MW/m(2). The temperature of the tested plates amounted to 1000 degrees C and more. Stochastic nanostructures with dimensions of the structural elements of less than 50 nm, including fuzz-type structures, were observed on the processed surfaces of the samples

Assessment of lighting levels in residential and public buildings (based on the example of Yekaterinburg)

The article describes the results of assessing lighting in residential and public building and its potential effects on workers with account for their various fields of activity. Artificial lighting was measured in various rooms taking into account the use of the main light sources. The study showed that the use of LED lamps provided a sufficient lighting level and had the most favorable effect on humans.В статье представлены результаты выполненной оценки фактора освещённости в жилых и общественных зданиях, возможного влияния на работников с учётом различных сфер деятельности. Организовано и проведено измерение искусственной освещенности в различных помещениях с учётом использования различных основных источников света. В результате исследования показано, что использование светодиодных ламп обеспечивает достаточный уровень освещённости и оказывает максимально благоприятное влияние на организм человека

F1s core level spectra of fluorinated multiwalled carbon nanotubes

This paper presents results of modeling the shape of the satellites of the F 1s line in the X ray pho toelectron spectra of fluorinated multiwalled carbon nanotubes using the semiempirical quasi molecular large unit cell method. The modeling results adequately describe the key features of the shape of the satellite F 1s spectra, in particular, the additive contributions to the F 1s satellites from several graphite like layers of nanotubes containing different amounts of attached fluorin