| 1. | Simulaneous spectrophotometric determination of iron , cobalt and nickel by k - ratio and h - point standard addition method
点标准加入分光光度法同时测定铁钴镍的研究 |
| 2. | Based on finite difference technique , a new numerical simulation program on hemispherical gas cloud was worked out by homogeneous energy addition method and artificial viscosity , with which deflagration parameters were computed
利用能量均匀加入法和有限差分技术，编制了半球形气云爆炸过程的计算程序。 |
| 3. | This thesis realizes the computation of sigmoid function , which is a commonly used non - linear transfer function in bp network , using a stam ( symmetric table and addition method ) method
文中采用了一种stam ( symmetrictableandadditionmethod )方法在fpga器件上，实现了bp网络最为常用的一种非线性传递函数? ? sigmoid函数的近似计算。 |
| 4. | A method called " k - ratio h - point standard addition method " was proposed for the simultaneous determination of nitrate and nitrite , based on their ultraviolet absorption spectrum in a neutral medium
摘要研究了在近中性介质中，硝酸根与亚硝酸根的紫外吸收光谱，提出了引用“ k比例h点标准加入法”同时测定了硝酸根、亚硝酸根含量的方法。 |
| 5. | Effects of maintenance and raise of water level at yichang station by river bottom protection and roughness addition method and pool back - fill method in the reach from yichang to zhicheng of the changjiang river are calculated and compared by using a 2 - d flow numerical simulation method
摘要运用二维水流数值模拟方法，计算比较了在宜昌枝城的长江河段内选取重点控制河段，进行护底加糙及回填深槽对维护并抬高宜昌水位的效果。 |
| 6. | Several calculation methods of electric potential are given for the conductor in electric fields to expand addition method , to discuss the problem of electric potential of complex conductor in electric fields , so we can solve the problem of conductor in many complex electric fields
摘要就静电场中导体的电势计算方法叠加法加以扩充，对静电场中复杂的导体的电势问题进行了分类讨论，由此解决了很多复杂的静电场中的导体的电势问题。 |
| 7. | The digital correlators of the two structures are designed with the foundation series 3 . 1 xlinx design tools software . the classical structure emphasizes on the design of the adder , whose general form and 3 - 2 compressor structure are designed and analyzed . in this system , an express addition method is put forward , and its synthesis performance proves that it is superior to the two structures mentioned above
文中利用xilinx公司的foundationseries软件，详细设计了两种结构的数字相关器，经典结构的数字相关器以加法器的设计为重点，设计并仿真了一般结构和3 - 2压缩结构的加法器，针对本系统文中还提出了一种快速计算加法的设计思想，综合后比前两种结构在性能上有明显的提高；修正结构的数字相关器是基于模块化的思想设计实现的，并以一个码元的不同延时点为例，详细分析了相关器的性能。 |
| 8. | Fourthly , set up the price theory model of the mould . combining the book of mould valuate method consult manual " and some actual conditions of mould factories , five kinds of methods : weight method ; man - hour method ; unit ' s weight method ; man - hour addition method ; similar comparative method are constructed and appraised
另外还建立了一些常用加工方法工时计算的数学模型；然后剖析了《模具计价办法参考手册》中的两种估价方法，工时法和重量法；针对覆盖件模具的特点，根据成都某模具厂的经验建立了单位重量法和工时累加法的数学模型。 |
