Reprint of the original, first published in 1873.
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1000 tulosta hakusanalla G.W.S. Barrow
Yesterday's Tomorrow
William Dupree; G W Pomichter
Createspace Independent Publishing Platform
2016
pokkari
Analog Test Signal Generation Using Periodic S?-Encoded Data Streams
Benoit Dufort; G.W. Roberts
Springer
2000
sidottu
Analog Test Signal Generation Using Periodic SigmaDelta-Encoded Data Streams presents a new method to generate high quality analog signals with low hardware complexity. The theory of periodic SigmaDelta-encoded bitstreams is presented along with a set of empirical tables to help select the appropriate parameters of a bitstream. An optimization procedure is also outlined to help select a bit sequence with the desired attributes. A large variety of signals can be generated using this approach. Silicon implementation issues are discussed with a specific emphasis on area overhead and ease of design. One FPGA circuit and three different silicon implementations are presented along with experimental results. It is shown that simple designs are capable of generating very high precision signals-on-chip. The technique is further extended to multi-bit signal generation where it is shown how to increase the performance of arbitrary waveform, generators commonly found in past and present-day mixed-signal testers. No hardware modifications are required, only the numbers in memory are changed. Three different calibration techniques to reduce the effects of the AWG's non-linearities are also introduced, together with supporting experimental evidence. The main focus of this text is to describe an area-efficient technique for analog signal generation using SigmaDelta-encoded data stream. The main characteristics of the technique are: High quality signals (SFDR of 110 dB observed); Large variety of signals generated; Bitstreams easily obtained with a fast optimization program; Good frequency resolution, compatible with coherent sampling; Simple and fast hardware implementation; Mostly digital, except an easily testable 1-bit DAC and possibly a reconstruction filter; Memory already available on-chip can be reused, reducing area overhead; Designs can be incorporated into existing CAD tools; High frequency generation.
Elements of Art Criticism; Comprising a Treatise on the Principles of Man's Nature as Addressed by Art, Together with a Historic Survey of the Methods
George Whitefield Samson; G W (George Whitefield) Samson
University of Michigan Library
2006
pokkari
Anyone visiting the Caribbean for the first time cannot fail to be impressed by the richness and luxuriance of the vegetation. All the photographs included in this book have been taken of plants growing in their natural surroundings in the Caribbean and one of the most striking features which immediately impresses visitors, is the abundance of flowering trees. They appear to be especially exotic when in blossom and the second section of this book is devoted to the most common of these flowering trees.
This book is invaluable to the casual visitor or tourist to the Caribbean in helping to identify the more common and interesting trees likely to be encountered during a short stay in the islands. Each species is illustrated with at least one colour photograph and detailed information is given about leaf shape, leaf size and colour, together with descriptions of the specific flowers and fruits. Should the reader wish to study particular species in more detail, the botanical family name is supplied together with the relevant scientific name.
The Conquest of Cancer
H W S (Henry Wardel Snarey) Wright; F G (Francis Graham) Crookshank
Anson Street Press
2025
pokkari
Reprint of the original, first published in 1872. The publishing house Anatiposi publishes historical books as reprints. Due to their age, these books may have missing pages or inferior quality. Our aim is to preserve these books and make them available to the public so that they do not get lost.
Reprint of the original, first published in 1872. The publishing house Anatiposi publishes historical books as reprints. Due to their age, these books may have missing pages or inferior quality. Our aim is to preserve these books and make them available to the public so that they do not get lost.
Thames Valley Villages
Charles G (Charles George) Harper; W S Campbell
Anson Street Press
2025
pokkari
Thames Valley Villages
Charles G (Charles George) Harper; W S Campbell
Anson Street Press
2025
sidottu
Thames Valley Villages
Charles G (Charles George) Harper; W S Campbell
Anson Street Press
2025
pokkari
Thames Valley Villages
Charles G (Charles George) Harper; W S Campbell
Anson Street Press
2025
sidottu