以公路隧道射流风机通风效果为研究对象，综合分析影响射流风机纵向通风效果的各项因素，利用计算流体动力学（CFD）理论，对射流风机的安装高度、风机轴线与隧道轴线之间的夹角进行优化仿真分析。以1120型风机为例通过隧道三维建模技术Solidworks进行效果优化仿真，得到最优安装高度及夹角，达到了公路隧道射流风机通风效果的优化。仿真结果表明射流风机的安装高度与射流角度对通风效果的影响趋势呈抛物线特征，存在一个最优的射流风机安装高度和风机轴线与隧道轴线的夹角，为公路隧道通风设计提供了科学依据。

Tajima 绣花机 花型数据编码格式 I’m also including an imbedded copy of the sample file for easy reference. Here’s a breakdown of the parts of the header we know and don’t know. All entries in the header seem to be 2 ASCII characters followed by a colon, then it’s value trailed by a carriage return. First is the ‘LA’ entry, which is the design name with no path or extension information. The blank is 16 characters in total, but the name must not be longer that 8 characters and padded out with 0x20. Next is the stitch count ST, this is a 7 digit number padded by leading zeros. This is the total stitch count including color changes, jumps, nups, and special records. Next, is CO or colors, a 3 digit number padded by leading zeros. This is the number of color change records in the file. Next is +X or the positive X extent in centimeters, a 5 digit non-decimal number padded by leading zeros. Following is the -X or the negative X extent in millimeters, a 5 digit non-decimal number padded by leading zeros. Again, the +Y and –Y extents. Next is AX, AY, MX, MY, and PD. I didn’t have any clue what these were, but a really cool support guy at Brother cleared it up for me…

绣花dst文件的编码规则，纤细介绍了DST绣花文件的组成！

Brother 绣花机Pe-Design_9.13，Brother 绣花机Pe-Design_9.13

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wilcom 4.2支持WIN7/WIN8/WIN10 64位系统，电脑不需要进入测试模式，安装简单方便。高级完整版带CorelDraw软件， 威尔克姆E4.2设计包含多种新增针迹样式，功能会法有很大的改进，使用Elements添加更多针迹样式。功能强大完整，稳定性比之前所有版本都好。

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