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Straw application is a common practice in rice agriculture, but its effect on stable carbon isotopes (δ 13 C) in each process of CH 4 emission, relative contribution of acetate to CH 4 production (F ac ), and fraction of the CH 4 that is oxidized (F ox ) in the winter season is not well known. We investigated CH 4 production and oxidation potentials...
Using Becker method, we have made research on evaporation rate by considering the parameters of cathode manufacturing process that conclude the tungsten base porosity, aluminate formulation and the coated film material. Finally, the impact level and the weight results are given quantitatively.
This article describes a micromachined quartz tuning fork resonator, 6 mm in height by 2 mm in diamter, holding a two-terminal electronic component with a nomial frequency of 36 kHz (at zero degree) and 15 pF typical capacitance paked in a 90 Pa He gass sealed metal container, which has been used as a sensor for temperature measurement with good sensitivity, repeatability and reliability. The temperature...
As a new type of rotation sensor, the Fiber Optic Gyro (FOG) is rapidly developed. The storage life of FOG is an important part of the life of FOG. On the analysis of theory of FOG and the theory of the reliability theory, this paper has a discussion on how to manage the storage life of the FOG. It brings out a way to evaluate the storage life of the FOG, and validates its feasibility through the...
In this paper, a highly sensitive temperature sensor based on quartz tuning fork resonators is reported. The temperature sensor is configured by ZY (110deg/10deg) Cut quartz crystal wafer based bulk acoustic wave (BAW) tuning fork resonators whose operating frequency is at 31 KHz. The ideal thermo-sensitive ZY cut for quartz tuning fork resonators is analyzed with the theory. The characterization...
This paper discusses a smart temperature sensor system that comprises of a high performance quartz tuning fork temperature sensor, interface with CMOS circuitry and control algorithm for reconfiguration. The ideal thermo-sensitive cut for quartz tuning fork resonators is analyzed with the theory. The specific cut quartz tuning fork was fabricated using photolithography and the etching technology....
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