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This paper designed a 1-Mb HfOx-based embedded Resistive Random Access Memory (RRAM) device with a one-transistor-one-resistor (1T1R) structure, and systematically investigated its working temperature range. It noted that this embedded RRAM macro has a 1.6X working temperature range than previous design for some extreme environment. Using the peripheral-assisted technique, it can enable the error...
We demonstrate a novel polyvinyl chloride (PVC) diaphragm-based fiber-tip Fabry-Perot interferometer for gas pressure measurements with ultra-high sensitivity. The PVC diaphragm has been coated to the end facet of a well-cut standard single-mode fiber by use of a plastic welder. Ultrahigh pressure sensitivity of ∼66.07 nm/MPa at 1565 nm and a low temperature cross-sensitivity of —5.5 KPa/°C have been...
In this paper, a liquid nitrogen temperature range CMOS smart temperature sensor is presented. Substrate PNP transistors are used for temperature sensing and generating the ADC's reference voltage. Errors resulting from non-idealities in the whole system circuitry are reduced to the 0.1K level. This is achieved by using dynamic element matching (DEM), a chopped proportional to absolute temperature...
Solid-state DFT calculations were performed to simulate the spectra of adenine and adenosine polycrystallines at 5 K. Good agreements were obtained for both the samples. Adenine undergoes very pure intermolecular motions as a rigid molecule. Adenosine exerts strongly coupled vibrations between intermolecular and intramolecular motions.
Through inversion of the satellite remote sensing data, the values of the environmental factors in the corresponding research area are obtained. By synthesizing the influence of marine environment on damage of the structure, equipment or system, the specific affecting factors in he research area have been determined, and the inversion result has been verified by the measured data. The problem in analyzing...
The Polaris system is an array of 18 position-sensitive detectors, using 6 cm3 pixelated CdZnTe crystals from Redlen Technologies and readout electronics from Gamma-Medica Ideas (GMI). Many detectors received from Redlen Technologies are capable of achieving 1% energy resolution or better at 662 keV for all single-pixel events during room temperature operation. Furthermore, 3D position reconstruction...
An experiment to measure the performance of 3-D position-sensitive pixellated HgI2 crystals cooled below room temperature was carried out using a new ASIC from GammaMedica-Ideas. This ASIC is capable of reading out the digitized pre-amplifier signal waveforms of 121 pixels and the cathode. A significant improvement in energy resolution from 1.48% FWHM at 662keV for the whole detector to 1.09% FWHM...
Absorption coefficients and refractive indices of biologically important macromolecules such as lysozyme and myoglobin and small molecules such as adenosine triphosphate (ATP) have been obtained in the low-frequency region by terahertz time-domain spectroscopy (THz-TDS) to understand molecular dynamics and interactions of these molecules.
The pressure fluctuation signals of the boiling two-phase flow in a upward tube were analyzed by statistical and fractal theory. Five parameters, i. e. the heat flux, standard deviation, Hurst index, correlation dimension and Kolmogorov entropy were obtained and used as the characteristic vector of BP neural network. Results show that the flow regime characteristic vector which was obtained by statistical...
A measurement about 4 minutes quick start-up is done on a kind of S-band high average power klystron. The test requires that the filament warms up only 4 minutes, and then the klystron starts up immediately. The results show that the klystron can work steadily, but in the 5th minute the output power is about 93 % of the full power and the beam average current is about 97 % of the full current. Then...
Gas turbine is a complex, strong non-linear and multi-variable coupling pneumatic thermodynamics system. Its typical model in stability studies consists of load-frequency control, temperature control, and acceleration control. A strong coupling relationship exists among three control systems which affect the rotate speed of turbine and the exhaust temperature of turbine. A decoupling control method...
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