-
EAN条码字体的解码算法 经常发现用PB的开发人员在问为什么用EAN的字体打出来的条码扫描枪无法扫描
其实受EAN的编码规格的限制,EAN的字体是不能直接使...
EAN条码字体的解码算法 经常发现用PB的开发人员在问为什么用EAN的字体打出来的条码扫描枪无法扫描
其实受EAN的编码规格的限制,EAN的字体是不能直接使用的,EAN13的编码规格就不
多说了,下面给出两个函数可把条码转换为EAN字体可识别的字符串(分别对应EAN13和EAN8两种编码)-EAN barcode font decoding algorithms are often found with the development of PB in the question why the fonts EAN bar code scanning to fight out of the gun can not scan a matter of fact by the EAN coding specification limit, EAN fonts can not be directly used, EAN13 of coding specifications do not say, and given the following two functions can be converted to EAN barcode fonts can be identified by the string (corresponding to two coding EAN13 and EAN8)
- 2023-08-22 05:55:03下载
- 积分:1
-
stiffened ideal for the design of large thickness overcome the problems that may...
加强肋
理想的设计
为了克服壁厚大可能引起的问题,使用是一种可减少壁厚并能增加刚性的有效方法。
一般来说,部件的刚性可用以下方法增强
增加壁厚;
增大弹性模量(如加大增强纤维的含量);
设计中考虑。
如果设计用的材料不能满足所需刚性,则应选择具有更大弹性模量的材料。简单的方法是增加塑料中增强纤维的含量。但是,在特定壁厚下,这种方法仅能使刚性呈线性增长。更有效的方法是使用经过优化设计的。由于惯性力矩增大,部件的刚性便会增大。在优化的尺寸时,不但要考虑工程设计应当考虑的问题,还应考虑与生产和外观有关的技术问题。
优化的尺寸
大的惯性力矩可很容易地通过设置又厚又高的来实现。但是对热塑性工程塑料,这种方法常会产生制品表面凹痕、内部空洞和翘曲等问题。而且,如果的高度过高,在负荷下结构将有可能膨胀。出于这种考虑,必须在合理比例内保持的尺寸(见图1)。-stiffened ideal for the design of large thickness overcome the problems that may arise. use of a reduced wall thickness and rigidity can increase the effective method. In general, the rigid parts of the following methods can be used to enhance increased thickness; increased elastic modulus (such as increasing fiber content); Design considerations. If the design of the materials used can not meet the rigid requirements, they should have a greater choice of elastic modulus of the material. The simple way out is to increase plastics reinforced fiber content. However, in s
- 2022-01-28 16:48:59下载
- 积分:1
-
一个java漂亮外观的源码,支持窗体透明,有兴趣的朋友看看。...
一个java漂亮外观的源码,支持窗体透明,有兴趣的朋友看看。-Beautiful appearance of a java source code to support transparent form, interested to see friends.
- 2023-04-01 04:05:04下载
- 积分:1
-
著名的安装制作软件InnoSetup的源码及示例源码
著名的安装制作软件InnoSetup的源码及示例源码-The installation of a well-known software s source code and sample InnoSetup source
- 2022-03-15 12:15:03下载
- 积分:1
-
基于平面波展开 传输矩阵计算2维矩形光子晶体模型 计算可得出相关图谱
handbook中除了参数说明还有参考文献等...
基于平面波展开 传输矩阵计算2维矩形光子晶体模型 计算可得出相关图谱
handbook中除了参数说明还有参考文献等-Plane wave expansion based on the transfer matrix calculation of 2-D model calculation of rectangular photonic crystal patterns can be drawn from the relevant handbook of parameters except that there are references such as
- 2022-02-20 11:11:13下载
- 积分:1
-
添加删除修改管理员考生资料,初始化考场信息,使考试能够顺利进行。...
添加删除修改管理员考生资料,初始化考场信息,使考试能够顺利进行。-Add delete modify data administrator candidates, test initialization information, so that the smooth conduct of examinations.
- 2023-03-29 18:40:04下载
- 积分:1
-
hoops基础讲义,培训课程,ppt格式讲义
hoops基础讲义,培训课程,ppt格式讲义-hoops
- 2023-08-05 17:40:03下载
- 积分:1
-
c++priemer第三版,中文完美翻译,超好,希望对大家有用
c++priemer第三版,中文完美翻译,超好,希望对大家有用-c++ priemer third edition, Chinese perfect translation, super good, I hope useful for everyone
- 2022-03-05 22:20:21下载
- 积分:1
-
与CPU1的功能类似,都是与微机线路保护原理程序配合实现CPU2的功能程序...
与CPU1的功能类似,都是与微机线路保护原理程序配合实现CPU2的功能程序-CPU1 function with a similar, are microprocessor-based line protection with the principle of procedural CPU2 realize the function of the procedure
- 2022-01-26 04:54:42下载
- 积分:1
-
PHP发邮件的实例,不是用MAIL函数实现
PHP发邮件的实例,不是用MAIL函数实现-PHP email example, instead of MAIL function implementation
- 2022-01-30 15:36:52下载
- 积分:1