考虑互动特性的水火电力系统优化调度策略

针对水火电联合运行的电力系统,首次利用优化的方法分析水电和火电间的相互作用规律和负荷的空间分布特性对电力系统节能运行的影响规律,揭示了其联合运行时的水电和火电的运行特征.以此为基础,构建了可充分发挥梯级水电站互动特性的优化调度模型.以一个含有梯级水电站的水火电力系统为例进行分析,结果表明可通过充分发挥水电能源的互补作用,实现非可再生能源的节约和促进能源的可持续高效利用.     

基于计算机视觉的腾空飞脚错误动作识别模型

以南拳项目中腾空飞脚动作为例,依据2003版竞技武术套路竞赛规则,建立三维坐标系,将动作质量(A组)评分规则中的腾空飞脚动作的扣分规则进行形式化描述,以利于电子裁判对错误动作进行识别.针对每个动作建立错误函数和基于计算机视觉的腾空飞脚动作扣分模型,并举例说明.     

Integrated framework of risk evaluation and risk allocation with bounded data

This paper presents an integrated framework for risk evaluation and risk allocation with bounded data in a critical risk management. A risk evaluation framework using the Imprecise Data Envelopment Analysis (IDEA) method is proposed to be applied to operations of Korean Army helicopters. The risks pertaining to pilots, missions and helicopters are evaluated based on bounded data, and pilots are appropriately allocated to missions and helicopters using goal programming with bounded risk scores. Using bounded data, two risk allocation models are developed to be used with the expected value and lower/upper limit values, resulting in improved reliability of the solutions. Numerical experiments show reasonable solutions and valuable information for risk management.     

2—氨基—4—甲氧基—6—甲基均三嗪的合成

着重介绍了2-氨基-4-甲氧基-6-甲基均三嗪的合成方法。     

具咪唑基杀菌剂的研究开发进展

介绍了含咪唑基类杀菌剂的开发沿革情况,列出了已商品化的品种,提示了其良好的发展前景。     

活性石灰在冶金生产中的应用

介绍了活性石灰在炼钢、铁水预处理、精炼、烧结等冶金生产中的应用。     

一种16QAM调制实现技术的研究

讨论了16QAM调制时应用不同类型和参数的滤波器对系统性能的影响．针对16QAM的特点，采用了存储波形累加求和法来代替一般的滤波成形，提高了调制速度．并利用其相位对称的特点将波形存储表压缩为原容量的1／4，有效地节约了存储空间．     

The influence of publication delays on three ISI indicators

Summary Based on the transform function model of the observed citing process, the analytical expression of the age distribution of citations is deduced, and it is theoretically proved that the peak value of the citation distribution curve would fall and shift backward along with increasing the average publication delay and the peak age has a direct proportion relation with the pure delay and would be prolonged along with increasing the delay or decreasing the aging rate. The influence of the average publication delay on three ISI indicators impact factor, immediacy index and cited half-life are studied; in one subject discipline, the bigger the delay, the lower the three indicators of journals. Using the sensitivity theory, sensitivity formulae of the three indicators to publication delay parameters are deduced and it is found that responses of these indicators to changes of publication delays are different according to different time constant of the aging process; The faster the aging rate of a discipline literature is, the worse the influence of publication delays on the indicators of journals in the discipline.     

Piezoelectromagnetic waves guided by the surface of a ceramic cylinder

Summary The propagation of shear horizontal (SH) waves over the surface of a circular cylinder of polarized ceramics is studied from the three-dimensional equations of linear piezoelectromagnetism with full electromagnetic coupling. An exact solution is obtained.     

冲轧钼导杆的模具设计

设计了冲轧特种灯钼导杆的复合冲模.对冲模刀具材质和模块材料做了选择性实验,结果得出,刀具选用W18Cr4V效果最好,模块宜用45#钢.采用本设计的冲模能够成功地冲轧不同规格的高质量特种灯用钼导杆.