This manual provides guidance on creating subject heading proposals for Indigenous topics that can be submitted to the Subject Authority Cooperative Program (SACO) for addition to the Library of Congress Subject Headings.
Delta-sigma modulators are currently a very popular technique for making high-resolution
analog-to-digital and digital-to-analog converters (ADCs and DACs). Most
delta-sigma modulators in production today employ single-bit quantization because a 1-bit DAC is inherently linear, whereas a multi-bit DAC is not. Were it not for this drawback,
the use of multi-bit...
The (±) 8,9:13,14-diseco-norestradiol, a large ring hormone
analog, and its related derivatives, were prepared by a ring expansion
approach. The key step of this approach is the establishment of the
benzocyclododecenone system via the Caubere reaction. This step
not only provides a favorable ring size, it also sets the necessary...
Delta-sigma modulators are currently a very popular technique for making high-resolution
analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
These oversampled data converters have several advantages over conventional Nyquist-rate
converters, including an insensitivity to many analog component imperfections, a
simpler antialiasing filter and reduced accuracy requirements in the sample and hold....
Delta-sigma modulators are currently a very popular technique for making high-resolution
analog-to-digital and digital-to-analog converters. These oversampled data
converters have several advantages over conventional Nyquist-rate converters, including
an insensitivity to many analog component imperfections, a simpler antialiasing filter and
reduced accuracy requirements in the sample and hold. Though the initial...
Oversampling and noise-shaping methods for digital-to-analog (D/A) conversion have
been widely accepted as methods of choice in high performance data conversion
applications. In this thesis, the fundamentals of D/A conversion and oversampling D/A
conversion were discussed, along with the detailed analysis and comparison of the reported
state-of-the-art oversampling D/A converters....
Time-domain data conversion has recently drawn increased research attention for its highly digital nature in favor of process technology scaling. Also, as the time information being carried by binary voltage, time-domain operation is much less sensitive to voltage noise compared to conventional voltage domain operation. However, for analog-to-digital converter (ADC)...
Recent publications show that successive approximation register (SAR) analog to digital converters (ADC) are capable of achieving high efficiency over other ADC topologies. Furthermore, techniques have been adopted to process signals with low activity periods, such as biomedical and industrial sensors. Prior work used least- significant bit first quantization (LSBFQ)...