The photocell is a silicon photodiode integrated onto a chip together with a voltage-tofrequency convertor. This combination makes a light intensity-to-frequency convertor which has a linear dynamic range of six decades. The light intensity can then simply be determined by counting the frequency. The sensitive area is about two millirrietres square and the band of light produced by the cylindri...

We proposed an ultra-broadband reflective metamaterial with controlling the scattering electromagnetic fields based on a polarization convertor. The unit cell of the polarization convertor was composed of a three layers substrate with double metallic split-rings structure and a metal ground plane. The proposed polarization convertor and that with rotation angle of 90 deg had been employed as th...

A47934, a peptide antibiotic produced by Streptomyces toyocaensis, belongs to the glycopeptide class of compounds which includes ristocetin and vancomycin. Incorporation studies with radioisotope-labeled substrates indicated that tyrosine, p-hydroxyphenylglycine, p-hydroxyphenylglyoxylate, acetate, and sulfate were efficiently incorporated into A47934. This is consistent with the reported biosy...

Bidirectional Dc–Dc Converters square measure accustomed Transfer the facility Between 2 Dc Sources in Either Direction. These Converters square measure wide utilized in Applications, like Hybrid electrical Vehicle Energy Systems, Uninterrupted Power provide, Fuel-Cell Hybrid Power Systems, electrical phenomenon Hybrid Power Systems, And Battery Charge. Several bifacial Dc–Dc Converters are res...

In this paper, a number of mechanisms are described that can be used in the design of a protocol convertor for authentication and key distribution protocols. First, the scope of the mechanisms is deened: we mark out the class of authentication systems that were considered during the design of the mechanisms. A rst mechanism, based on proxies and a synchronization protocol , allows for a transpa...

This paper summarizes the development of the synchronization control technology of the multi-motor control system. And a model structure of multi-motor synchronization control system based on the monomaster PROFIBUS-DP network is proposed, which slaves are intelligent including PLC, convertor and motor. The communication mode of MS is adopted. The control tasks of the master and their slaves ar...

Controlling the phase distributions on metasurfaces leads to fascinating effects such as anomalous light refraction/reflection, flat-lens focusing, and optics-vortex generation. However, metasurfaces realized so far largely reply on passive resonant meta-atoms, whose intrinsic dispersions limit such passive meta-devices' performances at frequencies other than the target one. Here, based on tuna...

This paper deals with the optimization of the catalytic convertor for CNG Lean burn Engine based on BS4 compliances. In addition to the present catalytic convertor the work is carried out for the optimization of catalytic convertor and also to meet the BS4 compliance and also to reduced cost for the same. In this project we have prepared the samples with some variation in the substrate with res...

With the development of science and technology, microwave has been used in many fields such as industry, military, medicine and communication. People are living in a lapped and dynamic electromagnetic environment. Concerns about potential hazards of microwave are getting increasing attentions. The single biological effects of microwave were widely discussed which was considered harmful. Relevan...