图的Hamilton-圈与连通度

利用插点方法和H－序列，给出l－连通图G是Hamilton－圈的一个新充分条件。     

大范围运动空间梁的耦合动力学模型

从连续介质力学原理出发，对作大范围运动的空间梁建立耦合动力学模型．在纵向变形中计及了变形位移的二次耦合变形量，基于Jourdain速度变分原理导出作大范围运动的空间梁的动力学方程．将耦合动力学模型的仿真计算结果与不计二次耦合变形量传统的建模理论进行比较表明，在大范围运动的侧向角速度和浮动基基点的纵向加速度较大的情况下，二次耦合变形量对系统的刚—柔耦合动力学性质产生一定的影响．     

防止催化裂化分馏塔结盐研究

本文对催化裂化分馏塔在不同操作条件下的结盐状况及其主要原因进行了分析，提出相应的预防结盐措施，这些防止结盐措施，可有效地避免催化裂化分馏塔结盐。     

一种解决噪声主动控制中时滞问题的思路

对噪声主动控制进行了探讨，提出一种利用计算机存储概念和寻址技术，从计算机数据处理系统入手解决时滞问题的思路，并给出了结构图。     

B0型空间上共轭凸函数的指数共轭性

引入并刻划B0型准范空间中凸函数的上、下指数，建立共轭凸函数上、下指数间的完整共轭关系。     

新型桌面吸气罩的研究与设计

文章针对目前化学实验室广范使用的喇叭型桌面吸气罩和半圆柱型桌面吸气罩存在的缺点,对桌面吸气罩进行分析研究,设计出一种性能优良的新型桌面吸气罩,因其有良好的技术经济性,值得推广。     

TD—SCDMA系统定位算法研究与仿真

为了克服NLOS信号对移动无线电定位的影响，对TD－SCDMA系统中联合DOA与TOA实现移动终端定位的方案进行了研究，基于NLOS信号识别的算法有效地解决了NLOS信号对实施定位的影响，提出了一种对多基站时间加权定位算法，通过仿真实验证明了所采用算法的可行性，在NLOS情况下也可满足FCC对E－911业务的要求。     

Efficient expression of human factor Ⅸ cDNA in liver mediated by hydrodynamics-based plasmid administration

The transfection of plasmid DNA into mammalian cells is an indispensable tool in the study of gene transfer and gene function. Since the original report in 1990 on the successful expression of a reporter gene in muscle[1], plasmid DNA injection has been widely used to mediate gene transfer study. As a gene transfer vector, naked DNA has many obvious advantages. It is easy and cheap to be prepared and more safe after transfection. But the plasmid mediated gene expression is low because of t…     

A new species of Gobiconodon （Triconodonta, Mammalia） and its implication for the age of Jehol Biota

A new species of Gobiconodon is found from the Yixian Formation of western Liaonlng, China. The new taxa,G zofiae sp. nov., has a confluent opening for branches Ⅱand Ⅲ of the trigeminal nerve on the anterior lamina of the petrosal. G zofiae sp. nov. is similar to Repenomamus in having an ossified Meckel‘s cartilage connecting the lower jaws and ear region. The new species, with enlarged I^1/I1, posteriorly located infraorbital foramen and four mental foramina,distinctly differs from the other species of Gobiconodon. The new material indicates that Gobiconodon has four, not five,upper molariforms. The presence of Gobiconodon in Jchol Biota makes it possible to correlate Jehol Biota with faunas in eastern Asia and North America, and suggests the age of the Yixian Formation to be Early Cretaceous.     

A surface-based DNA algorithm for the minimal vertex cover problem

Abstract DNA computing was proposed for solving a class of intractable computational problems, of which the computing timewill grow exponentially with the problem size. Up to now, many achievements have been made to improve its performance and increase itsreliability. It has been shown many times that the surface-based DNA computing technique has very low error rate, but the technique hasnot been widely used in the DNA computing algorithms design. In this paper, a surface-based DNA computing algorithm for minimal ver-tex cover problem, a problem well-known for its exponential difficulty, is introduced. This work provides further evidence for the abilityof surface-based DNA computing in solving NP-complete problems.