电信网络智能业务实现方式的探讨     

杨海斌  罗先进  李光明 《湖南第一师范学报》2004,4(2):110-113

实现电信网络智能业务有多种方式，智能网方式是一个国际公认的极佳方案。探讨智能网的结构、模型、新的应用以及发展有重要的现实意义。  相似文献   

Simple groups with orders 2^a3^b5^cp^d, 2^a3^b7^cp^d and 2^a3^b5^c7^d     

JIANGYouyi TANMingshu LIUXuefei 《重庆大学学报(英文版)》2004,3(1):105-107

This work deals with the power exponent r1 and r2 respectively of the maximal and second-maximal prime factors ofthe order of simple K4-group, and the classification for simple {5,7}′-K4-group G (i.e. ｜G｜ can not be divided by 5 nor by 7 or ｜π(G)｜ = 4 ), simple 5′ -K4-group G (i.e. ｜G｜ can not divided by 5 and ｜π(G)｜ =4) and simple 7′-Ea-group G (i.e. ｜G｜ can notdivided by 7 and ｜π(G)｜ =4). It is derived that r1 =1, 2 and 4, and r2 is not greater than 4. All the simple K4-groups with order 2^a3^b5^cp^d, 2^a3^b7^cp^d and 2^a3^b5^c7^d are obtained.  相似文献   

日本的集团性社会文化     

王碧如 《安阳师范学院学报》2007,(3):154-156

每一个民族都有自己独特的文化,对于日本来说,集团性是其社会文化的核心。在讲求资历的日本场所型集团社会中,序列意识构成是日本纵向社会的基础。在序列意识的基础上,日本形成了以武士道的"忠义"和儒家思想的"和为贵"为核心,以"忠孝恭顺"为宗旨,成员服从集团,下级服从上级的集团性文化。  相似文献   

3,5-间苯二甲酸二甲酯磺酸钠母液中硫酸含量的快速测定     

于晓萍 《湘南学院学报》2003,24(2):57-59

本文研究了用铅离子选择电极作指示电极电位滴定法快速测定3,5-间苯二甲酸二甲酯磺酸钠(SIPM)母液中硫酸含量的分析方法,为了减少对环境的危害,做到达标排放,需对硫酸的含量进行测定,以对母液进行控制.试验证明采用铅离子选择电极电位滴定法测定该体系的硫酸根,不仅能满足工艺中间控制的要求,而且操作简单,省时,费用也低,扩大了铅离子选择电极的应用范围.  相似文献   

A Second Order Training Algorithm for Multilayer Feedforward Neural Networks     

谭营  何振亚  邓超 《东南大学学报》1997,(1)

ＡＳｅｃｏｎｄＯｒｄｅｒＴｒａｉｎｉｎｇＡｌｇｏｒｉｔｈｍｆｏｒＭｕｌｔｉｌａｙｅｒＦｅｅｄｆｏｒｗａｒｄＮｅｕｒａｌＮｅｔｗｏｒｋｓＴａｎＹｉｎｇ（谭营）ＨｅＺｈｅｎｙａ（何振亚）（ＤｅｐａｒｔｍｅｎｔｏｆＲａｄｉｏＥｎｇｉｎｅｅｒｉｎｇ，Ｓｏｕ...  相似文献   

试论《行政许可法》颁布后的治安管理     

刘象俭 《鸡西大学学报》2005,5(5):38-39

《行政许可法》颁布后，公安机关的治安管理职能发生较大的转变，前置审批权削弱，临场检查任务量加大。公安机关的治安管理部门应通过工作重心从事前审批到事中监督和事后查处上的转移，改革传统的只管不查模式，提高治安管理工作效率。  相似文献   

邓小平国际新秩序和老布什世界新秩序构想的比较     

曾明君 《柳州师专学报》2002,17(3):46-49

冷战结束后 ,雅尔塔格局彻底崩溃 ,面对急剧变化的国际形势 ,邓小平和乔治·布什分别提出了建立国际政治经济新秩序的构想 ,两种不同构想对两国的外交政策和战略调整以及当今国际形势的发展起了重要的影响作用  相似文献   

Event triggering power sharing control for AC/DC microgrids based on P -F droop curve method     

Dazhong Ma  Qiuye Sun  Xiangpeng Xie  Xiaoyu Li 《Journal of The Franklin Institute》2019,356(3):1225-1246

The power sharing of AC/DC micro-grids is researched in this paper. The proposed strategy mainly include two parts: the primary power event triggering control with secondary control and an adaptive quasi sliding mode voltage control in inner-loop. Firstly, a event triggering power sharing control (ETPSC) based on $P?F$ droop curve is developed to regulate the voltage and frequency of AC and voltage of DC with the aim of the proportional power sharing between AC and DC micro-grids. The triggered threshold of ETPSC can be chosen to decide the transmitted power between AC and DC micro-grids. When the difference power between AC and DC micro-grids is less than the triggered threshold of power flow, there is no power sharing between AC and DC micro-grids, which can less the number of switching the power flow direction and the transmitted line power loss. The ETPSC has a great robust for the disturbances of load and improve the stability of the system. An adaptive quasi-sliding-mode control,which is implemented easily and flexibly with small computational burden and only based on input/output (I/O) measurement data but not the model any more, is used to control voltage in inner-loop. The effectiveness of the proposed control schemes is demonstrated by some numerical simulations and experimental results.  相似文献   

科研管理中瓶颈问题分析   总被引：2，自引：0，他引：2  

周耀烈  张大亮 《科研管理》2003,24(1):28-33

瓶颈问题可通过改变颈口面积和颈口秩序来解决。本文首先建立了颈口面积模型和颈口秩序模型，并用案例说明了其运用方法。该瓶颈模型还可用在经济分析、生产管理等许多问题的分析上。  相似文献   

Comparison of high order aberration after conventional and customized ablation in myopic LASIK in different eyes of the same patient   总被引：4，自引：0，他引：4  

Du CX  Shen Y  Wang Y 《Journal of Zhejiang University. Science. B》2007,8(3):177-180

Purpose: To verify whether there exists any difference in higher order aberrations after undergoing myopic LASIK (laser in situ keratomileusis) with conventional ablation and customized ablation in different eyes of the same patient. Methods: This was a prospective randomized study of 54 myopic eyes (27 patients) that underwent LASIK using the Nidek EC-5000 ex-cimer laser system (Nidek, Gamagori, Japan). Topography-guided customized aspheric treatment zone (CATz) was used in the first eye of the patient (study group) and the other eye of the same patient was operated on with conventional ablation (control group). Higher order aberrations [root-mean-square (RMS) in the 5-mm zone] of both groups were observed with the Nidek OPD-Scan aberrometer before and 3 months after LASIK. Preoperative mean refractive error was similar between two eyes of the same patient (t=?0.577, P>0.05). Results: Preoperatively, higher order aberrations (RMS in the 5-mm zone) in the CATz ablation and conventional groups were (0.3600±0.0341) μm and (0.2680±0.1421) μm, respectively. This difference was not statistically significant (t=1.292, P>0.05). Three months after LASIK, higher order aberrations (RMS in 5-mm zone) in the CATz ablation and conventional groups were (0.3627±0.1510) μm and (0.3991±0.1582) μm, respectively. No statistically significant difference was noted between pre- and postoperative higher order aberrations in the CATz group (t=?0.047, P>0.05). However, a statistically significant increase in higher order aberrations was observed after conventional ablation (t=?5.261, P<0.05). A statistically sig-nificant difference was noted in the increase of higher order aberrations after LASIK between groups (t=?2.050, P=0.045). Con-clusion: LASIK with conventional ablation and topography-guided CATz ablation resulted in the same BSCVA (best specta-cle-corrected visual acuity) 3 month after LASIK. Higher order aberrations were increased, but the increase of higher order ab-errations after customized ablation treatment was less than that after conventional ablation.  相似文献