| 1. | The implementation - defined range of double - cell non - negative integers shall include { 0 . . 2147483647 } 实作自订的双单元非负整数?围必须包含{ 0 . . 2147483647 } |
| 2. | The implementation - defined range of double - cell signed integers shall include { - 2147483647 . . + 2147483647 } 实作自订的双单元非负整数范围必须包含{ 0 . . 2147483647 } |
| 3. | Subdivide multi fractal - as above , but new vertices are randomly displaced within a user - defined range 不规则多次细分-与上一样,但它是在用户定制的范围内随机置换细分。 |
| 4. | Chaotic variables can approach to every value in its defining range , so they can find the global optimal solution . based on this feature , chaotic optimization algorithm is presented 混沌优化算法就是利用混沌遍历性的特点,通过搜索整个自变量区间从而找到全局最优解。 |
| 5. | The whole text divides four chapters : chapter 1 is a preface : describe research motive and purpose , define range of research , proceed related cultural heritage review , and bring up to study the method and this text the theories to study the frame 全文分为四个章节:第一章为结论:阐述研究动机与目的,界定研究范围,进行相关文献回顾,并提出研究方法及本文理论研究框架。 |
| 6. | Today mixed coniferous forests occupy a wide but well - defined range of climates with mean annual temperatures from three to 13 degrees celsius ( 37 to 55 degrees fahrenheit ) , suggesting that the average yearly temperature for northern alaska during the cretaceous was similar 时至今日,针叶混合林分布广泛,不过其气候型态倒是相当明确,年平均气温介于3 ~ 13 ;想必在白垩纪时,阿拉斯加北部的年平均气温与此相近。 |
| 7. | Chaotic variables have not uniform distribution , and it is worse that chaotic variables are very sensitive to the change of initial value and the defining range of variable ; therefore it is uncertain that the optimal solution can be found . all those shortcomings above bring numerous problems in the process of optimization 通过分析揭示了混沌优化的本质,首先混沌算子在变量定义域上并非均匀分布,所以能否找到最优解是不确定的;再之混沌优化对初值的变化和变量定义域的变化特别敏感,这些给优化过程带来许多难以确定的问题。 |
| 8. | There are many faults in the chaotic optimization algorithm . to solve these problems , a new method named " bisection - interpolation approach " is put forward . it has numerous advantages such as ergodicity , uniform distribution , not sensitive to the change of initial value , not sensitive to the defining range of variable , not requiring the continuation and not requiring differential of the optimized object 该算法和混饨一样具有遍历性的特点,且变量均匀分布于定义域,对函数的定义域变化和初值的选定都不敏感,同样也不需要函数连续、可微,对优化对象几乎没有特别要求,从而避兔混池优化算法的缺点。 |
| 9. | This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively , control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change 本文重点讨论、分析提出负荷指令前馈作用可以提高汽轮发电机快速响应特性;负荷指令的导前功能对锅炉主控有超前控制作用,能显著提高主蒸汽压力的稳定性;采用预测及状态空间法能有效改进锅炉蒸汽温度控制品质,在大幅度工况变化下仍有效控制蒸汽温度在额定范围内,提高锅炉、汽轮机寿命及其效率;汽轮发电机组的快速响应性与汽轮发电机组负荷振荡问题间的平衡关系,采用线性补偿可以有效抑制在负荷变化梯度较大情况下发电机负荷振荡问题。 |
| 10. | The article drew conclusions and obtained useful fruits on rffp and regulation of agriculture structure in northwest china , as follows : based on analysis of situations of returned slope farmland and desertification land present , the study defined ranges of returning farmland to forest as well as that of returning farmland to grassland , what contributes guidance to carrying out the project of rffp in northwest china . based on analysis of agriculture structure and rural economic structure , and the research put forward strategies for structure regulation on planting , forestry , stockbreeding and rural economy . through above study , the study brought forward technique safeguards systems on the project of rffp and applicable technique systems on regulation of agriculture structure at the new time in northwest china , which make research rich and make theory perfect ; furthermore it is more practical on rffp and regulation of agriculture structure 本论文在对西北地区退耕坡地与退耕沙化地现状分析的基础上,研究确定了西北地区退耕还林区与退耕还草区,对完善西北地区退耕还林还草方案和实施具有重要的指导意义;在对西北地区农业结构和农村经济结构现状分析的基础上,研究提出了西北地区种植业结构、林业结构、牧业结构和农村经济结构的调整战略;同时提出了西北地区退耕还林还草工程技术保障体系及新时期西北地区农业结构调整的实施技术体系,形成了完善的西北地区退耕还林还草和农业结构调整研究的理论体系,在西北地区退耕还林还草和农业结构调整上取得了重要的研究结论和研究成果。 |