Vibrating hopper feeders with an electromagnetic drive for automating the process of counting parts have become widely used. This is necessary when transferring them to another workshop next technological operation. Also, it count artificial products on lot packing packaging. are used feed miniature, small, or medium-sized position machines. In this case, supplied these positions should be arra...

A simple noncontact device was implemented for measuring the position of the distal residual limb relative to the prosthetic socket during ambulation. The device was a small and lightweight photoelectric sensor positioned within a frame mounted immediately beneath the socket. Calibration tests showed that the sensor had a displacement range of 60.0 mm. The root-mean-square error for all sources...

OBJECTIVE To compare functionality, reasons for non-function, and nuisance alarm levels of two common types of smoke alarms after installation in low- to mid-level income households in King County, Washington. METHODS Randomized controlled trial of 761 households. An ionization or photoelectric smoke alarm was installed between June 1, 2000 and July 31, 2002. Main outcome measures were: perce...

The article discusses the issue of ensuring reliability, durability, and safety buildings engineering, including hydraulic structures, by creating an automated hydrostatic leveling system with a device that uses fiber optics combined LED photodetector, installed on one hollow axis rotation drum, like sensor ferromagnetic transducer was used for displacement pulse, comparative analysis existing ...

Abstract Ferromagnetic semiconductor chromium sulfide (Cr 2 S 3 ), as a member of transition metal chalcogenide (TMC), exhibits the narrow bandgap value 0.45 eV theoretically and has been applied in photoelectric field. However, application ultrafast fiber laser Cr not investigation at present. In this work, -based SA was successfully prepared by depositing nanosheets onto tapered fiber. The co...

As material for flexible transparent electrodes for organic photoelectric devices, the silver nanowires (AgNWs) have been widely studied. In this work, we propose a hybrid flexible anode with photopolymer substrate, which is composed of spin-coating-processed AgNW meshes and of zinc oxide (ZnO) prepared by low-temperature (60°C) atomic layer deposition. ZnO effectively fills in the voids of the...

If we had just 2Nk in the sum, this would be proportional to the energy of each mode times the number of quanta in each mode, summed over all modes. In fact, we have a ‘zero point’ contribution even when Nk = 0. It has exactly the same origin as the 12~ω ground state energy of the simple harmonic oscillator. In this case, the infinite number of modes means that the sum in Eq. (3) is not converg...

The goal of the study was to test the quality of binocular coordination of saccades in children and adults, and its dependency upon the viewing distance. Fourteen normal children (4.5-12 years old) and 10 normal adults (22-44 years old) participated. Two distances were studied: far (150 cm) and close (20 cm). Horizontal saccades from both eyes were recorded simultaneously by a photoelectric dev...