Today’s unmanned aerial vehicles are being utilized by numerous groups around the world for various missions. Most of the smaller vehicles that have been developed use commercially-off-the-shelf parts, and little information about the performance characteristics of the propulsion systems is available in the archival literature. In light of this, the aim of the present research was to determine ...

Goal. To study the bactericidal activity, and bacteriostatic properties, to select most optimal effective concentrations of new disinfectant (DI) Biolaid for its effect against test culture Escherichia coli ATSS 25922 in different time exposures, determine phenolic coefficient protein index. Methods. Microscopic, cultural, biochemical, statistical. Results. The results research on properties DI...

Background/Aim: Papillary neoplasia encompasses both malignant and benign lesions, core needle biopsy (CNB) is crucial in their diagnosis. Histological findings determine management. Here we compare volumetric apparent diffusion coefficient (ADC) histogram analysis of carcinomas pathologies identified by histopathology from excisional biopsies. Methods: This retrospective study included 524 pat...

The development of e-Commerce needs suitable online electronicpayment and settlement arrangement. In China, most online virtual commodity and service providers adopt a new payment and settlement solutions which is named ”Webcoin” by this paper. In this paper we analyze the China’s online and offline payment environment, explain the reason why the Webcoin come into being now, give the definition...

to achieve optimal yield and high production in wheat, need to adapt the plant's vegetative and reproductive growth stages to environmental conditions and increase use efficiency of production factors by desirable density. in order to study the effect of plant density on extinction coefficient and radiation use in modern and old wheat (triticum aestivum l.) genotypes, an experiment was conducte...

in this study, a temperature-dependent of the dispersion coefficients is calculated from equation state.the lennard-jones lj (12-6-3) effective pair potential function and simple thermodynamic argumentwith the input pvt data of liquid metals are used to calculate the dispersion coefficients. the dispersioncoefficients ( , , ) 3 6 12 c c c are found to be a linear function of 1/t1+α , where t is...

Quasi-phase matched second-harmonic generation at 532 nm is demonstrated in a channel waveguide that is written in bulk fused silica using a femtosecond laser. The second-order nonlinear grating is fabricated using uniform thermal poling followed by periodic erasure inside an e-beam deposition system caused, by what we believe to be, x-rays. A SHG conversion efficiency of 2 x10(-5) %/W-cm(2) wa...