This book investigates and discusses the hardware design and implementation to achieve smart air interfaces with a reduced number of Radio Frequency (RF) transmitter and receiver chains, or even with a single reconfigurable RF-Frontend in the user terminal. Various hardware challenges are identified and addressed to enable the implementation of autonomous reconfigurable RF-Frontend architectures. Such challenges are (i) the conception of a transceiver with wide tuning range of at least up to 6 GHz, (ii) the system integration of reconfigurable technologies targeting current compact devices that demand voltages up to 100 V for adaptive controlling and (iii) the realization of a multiband and multistandard antenna module employing agile components to provide flexible frequency coverage. A solid design of a reconfigurable frontend is proposed from the RF part to the digital baseband. The system integration of different components in the reconfigurable RF-Frontend of a portable-oriented device architecture is demonstrated.
Tiger Price is a fifty-year-old prison investigator who is on the verge of retiring after 29 years of state service. Tiger Price a.k.a. 'T.P.', has always desired to operate his own private investigations service and the time had finally come in his life to live his dream. Much to his demise, he is being heavily prompted by his superiors to conduct one last investigation prior to his retirement. A high-profile inmate has been murdered amongst the prison population. This particular inmate happens to be the former leader of the most controversial organization within the prison. Tiger Price is said to be the best investigator in the business and his conclusive investigations have afforded him a multitude of recognition. Under much protest from family and caring co-workers, Tiger Price reluctantly elects to accept the assignment to investigate the recent prison murder, just three weeks prior to his retirement. The mystery begins one afternoon as two inmates are involved in a fight during a basketball game. Within moments after the fight is resolved by prison officials, a lifeless body is found lying face down in the weight-pile. There is no distinct evidence of what type of weapon was used in the murder and the prospect for possible suspects could be numerous. During his investigation, Tiger Price, will leave no stone unturned in his quest to solve the murder in a timely fashion. The task will not be easy, but Tiger Price is determined and ready for the challenge.
Vitamins are a group of physiologically very important, chemically quite complex organic compounds, that are essential for humans and animals. Some vitamins and other growth factors behave as antioxidants, while some can be considered as biopigments. As their chemical synthesis is laborious, their biotechnology-based synthesis and production via microbial fermentation has gained substantial interest within the last decades. Recent progress in microbial genetics and in metabolic engineering and implementation of innovative bioprocess technology has led to a biotechnology-based industrial production of many vitamins and related compounds. Divided into three sections, this volume covers: 1. water-soluble vitamins 2. fat-soluble vitamin compounds and 3. other growth factors, biopigments, and antioxidants. They are all reviewed systematically: from natural occurrence and assays, via biosynthesis, strain development, to industrially-employed biotechnological syntheses and applications.
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