A series of polyether based polyurethaneurea(PUU) aqueous dispersions with well-defined hard segments were prepared by fractional steps with polyether polyol, 4,4′-diphenylmethane diisocyanate,dimethylolpropionic acid,1,4-butanediol,isophorone diisocyanate and ethylenediamine.
以二苯基甲烷二异氰酸酯、二羟甲基丙酸、1,4-丁二醇、异佛尔酮二异氰酸酯和乙二胺为硬段,聚醚多元醇为软段,通过分子设计采用分步合成法,制备了具有规整硬段和良好分散性能的聚醚型聚氨酯脲(PUU)水分散液。
Research on Coating High Performance Nonquarterwave Multi-layer Optical Thin Film Automatically;
高质量非规整多层光学薄膜自动制备的研究
Discussing on Groundwater Flow Near Partially Penetrating River;
非完整河渠附近地下水运动规律探讨
Study on the Generation and Evolution of the Nonlinear Wave on Uneven Bottoms;
非平整底部上非线性波的生成演化规律研究
Significant progress was made in rectifying and standardizing nonbank financial institutions.
整顿和规范非银行金融机构取得重要进展。
In this article, the methods for solution of a nonlinear mixed integer Programming is discussed.
本文讨论一类非线性混合整规划问题的解法。
Structure Design of Pile Foundation with the Aid of Nonlinear Mixed-Integer Programming
应用非线性混合整数规划进行桩基结构设计
Nonholonomic Motion Planning and Control of One-arm and Dual-arm Space Robot Systems;
单臂及双臂空间机器人非完整运动规划与控制
An Algorithm for Solving the Global Optimization of Nonlinear Integer Programming;
一种求非线性整数规划全局最小解的算法
A Unconstrainedly Continued Algorithm for Solving a Class of Mixed-integer Programming;
一类非线性混合整规划的无约束连续化解法
The Filled Function Method For a Class of Discrete Nonlinear Mixed-integer Programming;
一类可分离非线性混合整规划的填充函数解法
Application of Cutting Plane Method in MINLP Problems
切平面在混合整数非线性规划中的应用
Path planning for nonholonomic mobile robots using artificial potential field method
非完整移动机器人的人工势场法路径规划
Some Methods for Local Minimum of Nonlinear Integer Programming
几种求解非线性整数规划的局部极小点的算法
Modeling Changes of Non-point Source Pollution Load for Watershed Using Bayesian Regularized BP Neural Network
贝叶斯规整化BPNN定量流域非点源污染负荷研究
Motion Planning for Nonholonomic Wheeled Mobile Robot in Unknown Environment
未知环境下非完整轮式移动机器人运动规划
A Convex Filled Function Method for Nonlinear Integer Programming
非线性整数规划的一种凸填充函数方法
The Ponder of Non-materiality Factor in Village Improvement Plan
农村村庄整治规划中非物质性因素的思考
Speaker Verification Based on Unsupervised Normalization and Factor Analysis
采用非监督得分规整和因子分析的说话人确认
