IN Beijing, foreign tourists often dine at the Fangshan Restaurant, stay in the Palace Hotel and shop at the Lufthansa Center. The Lufthansa Friendship Shopping City is a newly built, luxurious complex that attracts w...IN Beijing, foreign tourists often dine at the Fangshan Restaurant, stay in the Palace Hotel and shop at the Lufthansa Center. The Lufthansa Friendship Shopping City is a newly built, luxurious complex that attracts wealthy Beijingers, international residents and tourists. The Lufthansa Shopping City is located in northeast Beijing. It covers over 22,000 square meters with five floors of shops and an underground supermarket. When you walk into the Lufthansa Center,展开更多
In this paper, we first give the concept of m-degree center-connecting line in n-dimensional Euclidean space Enand investigate its several properties, then we obtain the length of m-degree center-connecting line formu...In this paper, we first give the concept of m-degree center-connecting line in n-dimensional Euclidean space Enand investigate its several properties, then we obtain the length of m-degree center-connecting line formula in finite points set. As its application,we extend the Leibniz formula and length of medians formula in n-dimensional simplex to polytope.展开更多
We analyze the local behavior of the Hausdorff centered measure for self- similar sets. If E is a self-similar set satisfying the open set condition, thenC^s（E∩B（x,r））≤（2r）^sfor all x ∈ E and r〉 0, where Cs ...We analyze the local behavior of the Hausdorff centered measure for self- similar sets. If E is a self-similar set satisfying the open set condition, thenC^s（E∩B（x,r））≤（2r）^sfor all x ∈ E and r〉 0, where Cs denotes the s-dimensional Hausdorff centered measure. The above inequality is used to obtain the upper bound of the Hausdorff centered measure. As the applications of above inequality, We obtained the upper bound of the Hausdorff centered measure for some self-similar sets with Hausdorff dimension equal to 1, and prove that the upper bound reach the exact Hausdorff centered measure.展开更多
The CAS Center for Interdisciplinary Studies of Social and Natural Sciences was officially established on September 20 in Beijing. At the opening ceremony, CAS President Lu Yongxiang pointed out that the social and na...The CAS Center for Interdisciplinary Studies of Social and Natural Sciences was officially established on September 20 in Beijing. At the opening ceremony, CAS President Lu Yongxiang pointed out that the social and natural sciences are increasingly seeking new methodologies from each other展开更多
使用SKM Power Tools软件对一个数据中心的单母线柴油发电机备用电源系统进行短路计算和电流保护整定分析,并对比两种常用接地方式的保护整定差异,目的是在系统故障或异常工况时,各保护能自动、迅速、有选择地切除故障,保护电气设备不...使用SKM Power Tools软件对一个数据中心的单母线柴油发电机备用电源系统进行短路计算和电流保护整定分析,并对比两种常用接地方式的保护整定差异,目的是在系统故障或异常工况时,各保护能自动、迅速、有选择地切除故障,保护电气设备不受损坏并避免事故扩大。展开更多
文摘IN Beijing, foreign tourists often dine at the Fangshan Restaurant, stay in the Palace Hotel and shop at the Lufthansa Center. The Lufthansa Friendship Shopping City is a newly built, luxurious complex that attracts wealthy Beijingers, international residents and tourists. The Lufthansa Shopping City is located in northeast Beijing. It covers over 22,000 square meters with five floors of shops and an underground supermarket. When you walk into the Lufthansa Center,
基金Supported by the Department of Education Science Research Project of Hunan Province(09C470)
文摘In this paper, we first give the concept of m-degree center-connecting line in n-dimensional Euclidean space Enand investigate its several properties, then we obtain the length of m-degree center-connecting line formula in finite points set. As its application,we extend the Leibniz formula and length of medians formula in n-dimensional simplex to polytope.
基金supported by the National Natural Science Foundation of China (No. 11371379)
文摘We analyze the local behavior of the Hausdorff centered measure for self- similar sets. If E is a self-similar set satisfying the open set condition, thenC^s（E∩B（x,r））≤（2r）^sfor all x ∈ E and r〉 0, where Cs denotes the s-dimensional Hausdorff centered measure. The above inequality is used to obtain the upper bound of the Hausdorff centered measure. As the applications of above inequality, We obtained the upper bound of the Hausdorff centered measure for some self-similar sets with Hausdorff dimension equal to 1, and prove that the upper bound reach the exact Hausdorff centered measure.
文摘The CAS Center for Interdisciplinary Studies of Social and Natural Sciences was officially established on September 20 in Beijing. At the opening ceremony, CAS President Lu Yongxiang pointed out that the social and natural sciences are increasingly seeking new methodologies from each other
