Positive acceleration in the head to toe direction (+Gz) causes a reduction in blood circulation to the head which adversely affects the central nervous system and causes a decrease in vision. It has been established that Positive Pressure Breathing enhances +Gz tolerance by increasing head level blood prerssure.Utilizing the NAWC centrifuge, eight subjects outfitted with Navy Combat Edge (NCE) protective systems were exposed to a series of +Gz Rapid onset Rate (ROR) profiles and Positive Pressure Breathing schedules. Stroke Volume (SV), Heart Rate (HR), and Cardiac Output (CO) were measured using a new Impedance Cardiograph (ICG), the Drexel patented IQ system. Blood Pressure (BP), local blood volume using an Infrared Plethysmograph (IRP), Respiratory rate, and Peripheral light loss were also measured. These parameters were used to investigate potential alternate Positive Pressure Breathing Schedules to enhance the tactical pilots' +Gz tolerance.
Predictive MOSFET models are critical for early stage designtechnology co-optimization and circuit design research. In this work, Predictive Technology Model files for sub-20nm multi-gate transistors have been developed (PTM-MG). Based on MOSFET scaling theory, the 2011 ITRS roadmap and early stage silicon data from published results, PTM for FinFET devices are generated for 5 technology nodes corresponding to the years 2012-2020 on the ITRS roadmap.
The crossbar array architecture with resistive synaptic devices is attractive for on-chip implementation of weighted sum and weight update in the neuro-inspired learning algorithms. This paper discusses the design challenges on scaling up the array size due to non-ideal device properties and array parasitics. Circuit-level mitigation strategies have been proposed to minimize the learning accuracy loss in a large array. This paper also discusses the peripheral circuits design considerations for the neuro-inspired architecture. Finally, a circuit-level macro simulator is developed to explore the design trade-offs and evaluate the overhead of the proposed mitigation strategies as well as project the scaling trend of the neuroinspired architecture.
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