In the course of building underground railroad with shield driven method , in order to greatly shorten the construction period , improve construction quality , assure construction safety and greatly reduce the environment influence , applying shield driven method can produce mass benefits and immensely reduce the project cost as a whole 采用盾构法修建地铁时，为了大幅缩短建设周期，提高建设质量，确保施工安全和极大地减小对周围环境的影响，并能通过盾构法的长距离应用产生的规模效益，从总体上可较大幅度地降低工程造价。
Since time sectional scan method ( tssm ) acts as the dominant partner in the panel display , attention is drawn to the aspect in the drive methods . according to functions approximation theory , the method of complex merging approximation tssm which utilize multiple dissimilarity @ subclasses to achieve precision visual perception scale control is proposed . the comparison examples are given thereinto 首先，针对这种在平板显示器显示技术方面占主导地位的驱动方法进行细致的研究，在此基础上根据函数逼近理论提出了平板显示器时间片扫描的混合拟合逼近驱动方法，该方法采用多组相异子集_ i ~ *完成高精度的符合视觉感觉的灰度级控制。
In chapter 2 , the actuator ' s design is addressed particularly , which concerns three main aspects : 1 . the mechanical structure analysis and design ; 2 . the electrical structure design ; 3 . the driving method and control . chapter 2 also discusses the problems mentioned above deeply and systematically . specifically , in the mechanical structure , a new type of structure for heat compensation are presented and validated by relevant experiments 浙江大学硕士学位论文第三章是对gma的定性理论分析，论述了超磁致伸缩电一机械转换器的各利‘模型，包括静、动态特性及机械模型、电磁模型等等，还就有限元法、有限差分法等数值计算方法在gma研究中的应用作了理论探讨，得出了一些相关的磁场分布曲线。
It is the first time that driving chip used by pdp is applied to the fed panel . by adopting the new ic and the novel driving method , the developed grey scale modulator achieve high flexbility , stability and high integration . the circuit system includes cyclonetm fpga from altera and stv7610 from st microelectronic . with the capability of generating two kinds of modulating waveform , it has the advantages of flexible configuration , high display - quality , high integration and low cost . fpga design is based on the quartus platform . data transforming and the system controlling are achieved by using single fpga 基于altera公司cyclone系列fpga和st公司stv7610驱动芯片设计的fed显示器的灰度调制电路系统可以支持两种调制波形,具有配置灵活,显示性能好等优点,其集成度为原有系统的三倍,且造价更低廉;基于quartusii软件平台进行了fpga的系统开发与优化,采用单片fpga完成了全部的数据转换和系统控制功能, fpga的可编程特性使系统的设计具有充分的灵活性和可扩展性。
A drive method of unequalized clock counter in panel display which uses no dissimilarity @ subclass to achieve precision unequalized clock counter correction based on functions approximation theory is proposed . the new method is acquired based on the particular analysis results of the display drive design projects which adopted counter drive method in which the balance between the display image quality and the cost of drive circuit is given . finally , synthesis comparison examples are given 针对目前以该方法为基础普遍采用的不同技术方案进行详尽的分析，根据分析的结果阐明了其在图像显示质量和驱动代价方面的优缺点，在此基础上基于函数逼近理论提出了一种平板显示器计数器非均匀时钟驱动方法，该方法在计数器时钟上采用非相异子集完成高精度的非均匀时钟计数器校正。
