佳能PIXMA MP236一体机

正佳能腾彩PIXMA MP236多功能一体机,秉承了佳能腾彩PIXMA系列的高速、高品质打印和良好的性价。新增加的My Image Garden图像处理软件为用户带来前所未有的照片输出体验,令喷墨打印机更加生活化。高速高品质打印作为一款面向家庭及学生使用的多功能一体机,腾彩PIXMA MP236的最显著特点就是拥有超高的性价比。     

C8051F236在精密定位控制系统中的应用

C8051F236是新一代高速单片机，将其作为核心器件应用于精密定位控制系统，并给出了该系统软硬件和系统结构设计。     

Micro-channel flow boiling heat transfer of R-134a, R-236fa, and R-245fa

The rapid development of micro-thermal technologies has conveyed an increasing interest on convective boiling in micro-channels. Although there is general agreement that these systems may be able to dissipate potentially very high heat fluxes per unit volume, their heat transfer characteristics are still unclear and require investigation. The present study illustrates heat transfer data for flow boiling in a single micro-channel, for two channel diameters, namely, 510 and 790 μm, three fluids, namely, R-134a, R-236fa and R-245fa, mass velocities from 300 to 2,000 kg/m² s, and heat fluxes up to 200 kW/m². Stable flow boiling heat transfer data are analyzed through a parametric investigation, and are also confronted with measurements in the presence of two-phase oscillatory instabilities, which were found to significantly change the trends with respect to vapor quality.