“The Indians gaping before us”: Anxieties of Consumption in Mary White Rowlandson’s Sovereignty and Goodness of God

This paper traces the theme of consumption throughout Mary White Rowlandson’s captivity narrative The Sovereignty and Goodness of God. From Rowlandson’s fear of actual cannibalism at the outset of the work, her obsession with recording the strange foods she consumes, her status as a consumer of Algonquin culture, and lastly, the consumption of the novel by both contemporary and modern readers alike, consumption becomes the leitmotif of the text. A closer analysis elucidates that the fear of consumption truly belies a fear of colonialism and the cultural exchanges taking place at the frontier

“The Indians gaping before us”: Anxieties of Consumption in Mary White Rowlandson’s Sovereignty and Goodness of God

This paper traces the theme of consumption throughout Mary White Rowlandson’s captivity narrative The Sovereignty and Goodness of God. From Rowlandson’s fear of actual cannibalism at the outset of the work, her obsession with recording the strange foods she consumes, her status as a consumer of Algonquin culture, and lastly, the consumption of the novel by both contemporary and modern readers alike, consumption becomes the leitmotif of the text. A closer analysis elucidates that the fear of consumption truly belies a fear of colonialism and the cultural exchanges taking place at the frontier

Behavioural model analysis of active harmonic load-pull measurements

In this thesis, an investigation of the use of the poly-harmonic distortion model and related techniques is conducted, and applied to model fundamental and harmonic load-pull. Contained within the thesis is a detailed review of the development of the poly-harmonic distortion model and related methods. This thesis shows that although the poly-harmonic distortion model improves on the prediction of fundamental load-pull, over Hot-S-Parameters it still has a limited range of application. To address this observation, higher order models have been investigated along with Fourier methods allowing rapid extraction of the behavioral models. These methods allow conclusions to be drawn on the accuracy of the extracted models, by the direct observation of the magnitudes of the model coefficients. The thesis is concluded with the presentation of the results from third party, using a model extracted using the methods discussed in this thesis. The Model is of a 0.5W GaAs pHEMT at 9 GHz and is used within the design of a Class-J MMIC amplifier

Stretching the design: extending analytical circuit design from the linear to the nonlinear domain

In the design of most electronic circuits and systems, designers use computer-aided design (CAD) tools to guide the design flow. They exploit the ability of CAD tools to perform algebraic operations to compute/ predict circuit and system performance. This is possible because, in most electronic circuits and systems, linear operation can be assumed. The behavior of microwave components, circuits, and systems can, for example, be described in terms of "behavioral" parameters, such as Z-parameters, Y-parameters, and S-parameters. Transformation from one parameter to another is achieved by simple linear algebraic operations [1]. The performance of more complex circuits can be computed via linear matrix operations using the relevant parameters, i.e., Y-parameters for parallel connections and Z-parameters for series connections. More significantly, performance predictions can also be obtained via linear algebra transformations, i.e., the maximum gain, minimum noise figure, potential instability, etc., along with design insight, i.e., gain circles, noise circles, optimum input/output match requirements, and so on [1], [2].Ministerio de Ciencia e Innovación | Ref. TEC2011-29264-C03-03Ministerio de Ciencia e Innovación | Ref. TEC2011-28683-C02-0

Electronics with shape actuation for minimally invasive spinal cord stimulation.

Spinal cord stimulation is one of the oldest and most established neuromodulation therapies. However, today, clinicians need to choose between bulky paddle-type devices, requiring invasive surgery under general anesthetic, and percutaneous lead-type devices, which can be implanted via simple needle puncture under local anesthetic but offer clinical drawbacks when compared with paddle devices. By applying photo- and soft lithography fabrication, we have developed a device that features thin, flexible electronics and integrated fluidic channels. This device can be rolled up into the shape of a standard percutaneous needle then implanted on the site of interest before being expanded in situ, unfurling into its paddle-type conformation. The device and implantation procedure have been validated in vitro and on human cadaver models. This device paves the way for shape-changing bioelectronic devices that offer a large footprint for sensing or stimulation but are implanted in patients percutaneously in a minimally invasive fashion

Millimeter-wave on-wafer large signal characterization system for harmonic source/load pull and waveform measurements

This paper describes a large-signal single-sweep characterization system based on vector network analyzer receivers for on-wafer harmonic load/source pull measurements up to 110 GHz using passive tuners, and waveform measurements up to 100 GHz using an oscilloscope as a phase meter. The calibration and measurement procedures are described and validated with thru structures and on GaAs HEMTs at Ka-band demonstrating the capability to offer an important insight for both technology developers and designers of millimetre-wave transistors and amplifiers