discount greenery We demonstrate high-fidelity detection of the orbital angular momentum (OAM) of light using a compact and practical OAM spectrometer that maps the OAM spectrum to time.The spectrometer consists of a single optical delay loop to achieve timing mapping, a vortex phase plate that iteratively decreases the OAM value and a single mode
The analysis of various means and methods for automatic fire extinguishing of gas-cylinder cars is carried out.From the previously performed analysis of accidents of gas-cylinder cars, it follows that they may be characterized here by small leaks of the liquid phase or gas medium.Large fuel leaks, as follows from the statistics, are unlikely.In cas
Abstract Microwave electromagnetic signals from the Global Navigation Satellite System (GNSS) are affected by their travel through the atmosphere: the troposphere, a non-dispersive medium, has an especial impact on the measurements.The long-term variations of the tropospheric refractive index delay the signals, whereas its random variations correla
EHB (electro-hydraulic brake system) can provide active and decoupled brake for electric intelligent vehicles.However, modelling and control of automotive electro-hydraulic brake systems are always challenging 12n/1200 wella due to the complex and highly nonlinear dynamic characteristics of the braking process.In this paper, a nonlinear backsteppin
Castanopsis fordii Hance 1884 is a typical evergreen broad-leaved forest plant in the south subtropical and middle subtropical regions of China.It has high utilization value in wood production and soil erosion protection.Here, 12n/1200 wella we first reported and characterized the complete chloroplast (cp) genome sequence of C.fordii based on Illum