混沌反控制在心脏病治疗中的应用

正常的心脏中出现的混沌、心率过速与心肌组织中出现螺旋波有关,研究了一种七维心脏-血液耦合动力系统模型.首先通过线性负反馈对系统的参数进行了辨析,基于混沌反控制方法,使非混沌的心脏系统混沌特性加强,计算了系统输出信号的Lyapunov指数,为反馈信号幅度提供依据.数值计算模拟表明该方法的可行性,希望可以为心脏病的治疗和修复提供帮助信息.     

关于扰动单位根上的复Hermite插值多项式

本文给出了基于扰动单位根的Hermite插值对As(|z|<1)中函数f(z)及其导数的同时一致及平均逼近阶。     

Cyclosporine is angiostatic

The systemic effect of the immunosuppressive drug cyclosporine (CS) on formation of new blood vessels was studied quantitatively in rats using the mesenteric-window assay. Angiogenesis was induced by i.p. injection of saline. CS at a s.c. dose of 4 mg/kg/day, which is in the range used clinically, suppressed angiogenesis (inhibiting branching or tortuosity more than spatial expansion), and appeared to be non-toxic. This is the first report on an apparently selective angiostatic effect of CS. The finding is likely to have implications for the clinical use of CS, not only in certain types of organ transplantation but possibly also in psoriasis and other angiogenesis-dependent diseases.     

Pathways for oxidative fuel provision to working muscles: Ecological consequences of maximal supply limitations

The study of metabolic fuel provision and its regulation has reached an exciting stage where specific molecular events can be correlated with parameters of the organism's ecology. This paper examines substrate supply pathways from storage sites to locomotory muscle mitochondria and discusses ecological implications of the limits for maximal flux through these pathways. The relative importance of the different oxidative fuels is shown to depend on aerobic capacity. Very aerobic, endurance-adapted animals such as long distance migrants favor the use of lipids and intramuscular fuels over carbohydrates and circulatory fuels. The hypothesis of functional co-adaptation between oxygen and metabolic fuel supply systems allows us to predict that the capacity of several biochemical processes should be scaled with maximal oxygen consumption. Key enzymes, transmembrane transporter proteins, glucose precursor supply and soluble fatty acid transport proteins must all be geared to support higher maximal glucose and fatty acid fluxes in aerobic than in sedentary species.     

径向电磁轴承的灰色系统控制与数值仿真

应用灰色系统去余控制理论，以径向电磁轴承为对象，提出该轴承的灰色系统控制方法，以实现对转子的稳定控制，并进行了数值仿真。建立了径向电磁轴承转子系统的动力学模型与传递函数，按照灰色系统理论设计了控制系统，由数值仿真结果表明，该转子系统能实现稳定良好的控制效果。     

三种方法防治调节性近视效果观察

本文采用阿托品点眼、提高照明、减轻学习负担三种方法，对82名正常视力和46名调节性近视眼的学生进行防治七个月。对预防近视眼的发生，减轻学习负担效果最好，阿托品点眼和提高照明对调节性近视治疗四个月效果明显。     

基于层面信息的路径优化

根据分层物体快速成型（LOM）中零件逐层累积的特点，从缩短加工时间、提高制件效率方面着手阐述了路径优化的必要性，针对LOM机的运动机理和软件数据结构，给出了扫描路径优化的原理，将图论中的便宜算法用于LOM机的扫描路径优化。     

应用量子力学

量子力学是当前物理学及其相关科学的重要科学分支，也是当前许多新科学技术中的重要应用的基础。本书包含了现代新科学技术工程师所需要的量子力学方面的新材料，如研究和了解原子核、原子、分子和固体材料，以及激光器和其他量子光学器件所需要的科学资料等。     

承台大体积混凝土冬期施工实例分析

以洛阳市兴隆花园153号高层商住楼承台大体积混凝土冬期施工为实例，介绍了承台大体积混凝土冬期施工的技术要求、浇筑方法、保护措施、温度的控制及养护等，为同类工程的施工提供了宝贵经验