High efficiency and linearity can be achieved using Kahn's envelope elimination and restoration (EER) technique.However, when used with modulation schemes such as code division multiple access (CDMA) and orthogonal frequency division multiplexing (OFDM), the resulting polar drive signals suffer from expanded bandwidth.Rudolph has shown that the

This work presents a state feedback controller suitable to regulate the output voltage of DC-DC buck converters operating under input voltage disturbances and load variations.First, a state space model of the plant is given and the performance requirements are presented, in terms of bounds on rejection of disturbances, bounds on settling time of tr

The review of technical decisions on using of utilization heat in the systems of air conditioning, sewage water clearing, keeping of Meat Grinders constant oxygen pressure in the plant set at provision from three independent sources is reflected in the article.The cumulative experience of the sewage water clearing at the facilities of back osmosis

Pectins are intricate blends of polysaccharides which make up around 33% of plantcell wall.Despite of their presence in the greater part of plant body and in other sources, commercial production of pectin Pony is extremely difficult.This is a systematic study that aimed to produce pectinase from bacterial species isolated from rotten apple samples.

Most existing human mobility literature focuses on exterior characteristics of movements but neglects activities, the driving force that underlies human movements.In this research, we combine activity-based analysis with a movement-based approach to model the intra-urban human mobility observed from about 15 million check-in records during a yearlo