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Large and growing literature has explored whether temperature modified the effect of particular matter (PM) on mortality, but results of the modification effect are inconsistent. In this study, we reviewed information from 29 studies to get the qualitative evidence of the modification effects of temperature on PM to mortality, and the data from 16 of the 29 studies were extracted to conduct a meta-analysis...
Taken the thermal power plant super-heater temperature as research background, to explore a modeling method of high order with different capacity part, which can describe a class of nonlinear system effectively, the dynamic characteristic of super-heater temperature with controlled object can be described by a unified mathematic model which is with the same capacity characteristic, and taking full...
Model with dynamic characteristic of nonlinear controlled object is a significant technical problem in process control field. Taking controlled object boiler steam temperature’s full scope simulation mathematic model as example, and considering the effect of zeros and poles in the new model upon dynamic characteristic, explore a sort of practical and effective modeling method, which use a unified...
New germanium and boron base profiles are designed and tested for emerging lunar RF applications down to 43 K using SiGe HBTs. Device optimization in 1st generation SiGe HBTs to minimize the carrier freezeout and to suppress the heterojunction barrier effects without changing basic fabrication processes was attempted. Optimizing the device enhances fT by 20% and fmax by 70% as compared to a standard...
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