In this paper, we focus on how to use strain energy minimization to obtain the optimal value of the fl＇ee parameter of the planar Cardinal spline curves. The unique solution can be easily obtained by minimizing an ap...In this paper, we focus on how to use strain energy minimization to obtain the optimal value of the fl＇ee parameter of the planar Cardinal spline curves. The unique solution can be easily obtained by minimizing an appropriate approximation of the strain energy. An example is presented to illustrate the effectiveness of our method.展开更多
In order to relieve the deficiency of the usual cubic Hermite spline curves,the quartic Hermite spline curves with shape parameters is further studied in this work. The interpolation error and estimator of the quartic...In order to relieve the deficiency of the usual cubic Hermite spline curves,the quartic Hermite spline curves with shape parameters is further studied in this work. The interpolation error and estimator of the quartic Hermite spline curves are given. And the characteristics of the quartic Hermite spline curves are discussed.The quartic Hermite spline curves not only have the same interpolation and continuity properties of the usual cubic Hermite spline curves, but also can achieve local or global shape adjustment and C;continuity by the shape parameters when the interpolation conditions are fixed.展开更多
利用MEMS加工技术设计并制作了微型气相色谱柱。针对被分离恶臭物质的特性,选取CB-40(40%苯基+60%二甲基聚硅氧烷)固定相对色谱柱进行涂覆,制作了毛细管式微型色谱柱,并作为第一维分离柱;选用与Silica Bond Plot相同的固定相作为填充物...利用MEMS加工技术设计并制作了微型气相色谱柱。针对被分离恶臭物质的特性,选取CB-40(40%苯基+60%二甲基聚硅氧烷)固定相对色谱柱进行涂覆,制作了毛细管式微型色谱柱,并作为第一维分离柱;选用与Silica Bond Plot相同的固定相作为填充物固定相,制作了微型填充式色谱柱,作为第二维分离柱。选取典型的硫化氢、甲硫醇、二硫化碳、甲硫醚、苯、甲苯、乙苯、对二甲苯、苯乙烯等8种恶臭物质进行分离检测。设计了一整套的进样采集模块与控制加热模块,并选用自制的管式富集器与灵敏度高、体积小的光离子化检测器,大大提高了检测精度。苯的检测限可以达到0.174μg/m L,硫化氢的检测限可以到达0.133μg/m L。展开更多
基金The Hunan Provincial Natural Science Foundation(2017JJ3124)of China
文摘In this paper, we focus on how to use strain energy minimization to obtain the optimal value of the fl＇ee parameter of the planar Cardinal spline curves. The unique solution can be easily obtained by minimizing an appropriate approximation of the strain energy. An example is presented to illustrate the effectiveness of our method.
基金Hunan Provincial Natural Science Foundation(2017JJ3124)of Chinathe Scientific Research Fund(14B099)of Hunan Provincial Education Department of China
文摘In order to relieve the deficiency of the usual cubic Hermite spline curves,the quartic Hermite spline curves with shape parameters is further studied in this work. The interpolation error and estimator of the quartic Hermite spline curves are given. And the characteristics of the quartic Hermite spline curves are discussed.The quartic Hermite spline curves not only have the same interpolation and continuity properties of the usual cubic Hermite spline curves, but also can achieve local or global shape adjustment and C;continuity by the shape parameters when the interpolation conditions are fixed.
文摘利用MEMS加工技术设计并制作了微型气相色谱柱。针对被分离恶臭物质的特性,选取CB-40(40%苯基+60%二甲基聚硅氧烷)固定相对色谱柱进行涂覆,制作了毛细管式微型色谱柱,并作为第一维分离柱;选用与Silica Bond Plot相同的固定相作为填充物固定相,制作了微型填充式色谱柱,作为第二维分离柱。选取典型的硫化氢、甲硫醇、二硫化碳、甲硫醚、苯、甲苯、乙苯、对二甲苯、苯乙烯等8种恶臭物质进行分离检测。设计了一整套的进样采集模块与控制加热模块,并选用自制的管式富集器与灵敏度高、体积小的光离子化检测器,大大提高了检测精度。苯的检测限可以达到0.174μg/m L,硫化氢的检测限可以到达0.133μg/m L。
