福州盆地南北港冲淤规律与洪涝灾害对策

本文探讨了福州盆地南北港冲淤规律，近年来北港洪水分流量呈上升趋势，洪峰对北港的压力加大，文中还对福州城防洪涝灾害的措施等方面作了研究。     

对高校道德实践教育的探讨

文章从道德教育的实践要求、特征、途径等方面，阐述了道德实践在道德教育过程中的地位和作用，并从高校道德教育实际出发，提出了加强道德实践训练的有关措施与方法。     

多管武器系统密集度仿真技术

多管火箭密集度仿真是提高多管火箭射击密集度和减少多管火箭试验用弹量的前提。从武器系统弹、炮、药、环境一体化的角度,对多管火箭武器发射动力学进行了深入的理论和试验研究,建立了多管火箭武器刚弹耦合的多体系统发射动力学方程,应用多体系统传递矩阵法,实现了多管火箭动力响应分析,利用蒙特卡洛方法建立了多管武器系统密集度仿真技术。实例对某多管火箭武器系统密集度和减少多管火箭武器试验用弹量的优化方案的密集度进行了数值仿真,仿真结果得到了试验验证。     

Looking for structure in all the wrong places: Ramsey sentences, multiple realisability, and structure

‘Epistemic structural realism’ (ESR) insists that all that we know of the world is its structure, and that the ‘nature’ of the underlying elements remains hidden. With structure represented via Ramsey sentences, the question arises as to how ‘hidden natures’ might also be represented. If the Ramsey sentence describes a class of realisers for the relevant theory, one way of answering this question is through the notion of multiple realisability. We explore this answer in the context of the work of Carnap, Hintikka and Lewis. Both Carnap and Hintikka offer clear structuralist perspectives which, crucially, accommodate the openness inherent in theory change. Unfortunately there is little purchase for a viable form of realism in either case. Lewis’s approach, on the other hand, offers more scope for realism but, as we shall see, concerns arise as to whether a relevant form of structuralism can be maintained. In particular his thesis of Ramseyan humility undermines certain conceptions of scientific laws that the structural realist might naturally cleave to. Our overall conclusion is that the representational device of Ramsey sentence plus multiple realisability can accommodate either the structuralist or realist aspects of ESR but has difficulties capturing both.     

基于自互评体系的竞争性评估方法研究

在现今的系统评估方法研究中，通常都把每一决策单元即被评估者看成一种客体，被动的由评估者进行优选，缺乏主动性，往往与现实不符。本文从新的角度，引入目标参数，提出基于自互评体系的竞争性评估模型(CEMCO)，分别从自评和互评的角度，把每一决策单元即被评估者作为一种主体来参与各方案优选的竞争。     

具有多元利益关系的多目标二阶段综合决策模型

在经济与生产管理系统中,往往存在着具有多元利益的多个决策者,且每个决策者对所决策的问题又是一个多目标多方案的综合决策问题.本文讨论了这类系统的特点,提出了此类系统的综合决策模型.     

BP算法求解多元线性回归模型初探

提出求解多元线性回归模型系数的BP算法，给出该算法的数学描述、推导过程和计算机编程步骤，并结合实例说明。     

自制多功能数据采集卡驱动程序设计及其与Labview的适配

为自制多功能数据采集卡编写了DLL形式的驱动程序，并将其挂接到labview开发平台上，利用DLL驱动程序实现了对步进电机的自动控制．     

Equivalent Time-Domain Representation and Uplink Channel Estimator for Multicarrier CDMA Systems

Many blind channel estimation methods have been proposed for direct sequence (DS) code-division multiple access (CDMA) systems, so we can certainly use them to estimate the finite impulse response (FIR) channel for the multi-carrier (MC-) CDMA system. In this paper, the MC-CDMA system is interpreted as an equivalent time-domain DS-CD-MA system with specific spreading codes. Then, an equivalently time-domain blind channel estimator is derived for the     

孤子波在考虑表面张力时的效应(英文)

本文利用大标度近似方法,并考虑了表面张力,对在环形水槽里非传播性表面波的运动进行讨论。计算结果表明:表面张力使孤子波的横向振动频率变大,振幅增高,而宽度变小。