《难经》压力波参数初探

根据压力波理论，分析了《难经》脉状的参数，演绎了主要参数的特征曲线，这对推进中医切诊医术的现代化具有现实意义。     

雷达接收机数据采集平台及其FFT实现

介绍了小型化、通用化和实时信号处理要求下，雷达接收机的通用数据采集处理硬件平台。采用Xilinx公司最新平台级FPGA产品Spartan-3系列芯片构建平台，并实现其中的FFT于模块。试验表明，处理精度和速度都满足要求，为该方案的可行性和后续模块的实现提供了依据。     

“民主化”改革与地区经济表现

依据Polity IV数据库数据,考量20世纪90年代以来“第三波民主化浪潮”中,发展中国家朝着西方价值标准“民主”的重大转变对其经济表现的影响。结果显示,没有证据支持“民主化”改革促进了经济增长;相反,“民主化”改革引致国家治理能力下降,阻碍了经济发展。异质性分析表明,“民主化”改革对经济发展的负效应主要出现在撒哈拉以南非洲地区,且激进的“民主化”改革和被殖民国家的“民主化”改革对经济发展的负面影响更大。鉴于此,西方价值标准的民主既非一国经济发展的充分条件,也非一国经济发展的必要条件,一国选择何种国家治理模式与政治体制应考虑自身的历史、文化、发展阶段等实际国情,而不是盲目推行西式“民主化”。     

实时OD估计中卡尔曼滤波算法研究

ITS研究中，动态OD矩阵估计是交通动态分配的关键因素。针对OD矩阵难以获得的问题，回顾动态OD矩阵估计理论的发展历程，明确该领域研究中的三个关键问题：状态变量的选择、系统方程的确定、OD量与路段流量的关系（分配矩阵）。在此基础上介绍一种基于历史OD矩阵数据的估计方法，卡尔曼滤波算法，为动态OD矩阵估计理论的进一步的研究奠定基础。     

低应变反射波法在PHC管桩完整性检测中的应用分析

根据低应变反射波法检测高强度预应力混凝土管桩(PHC)桩身完整性的原理,通过具体工程实例对低应变反射波检测PHC管桩有关问题进行了分析探讨。     

Personalized multi-period tour recommendations

During a trip planning, tourists gather information from different sources, select and rank the places to visit according to their personal interests, and try to devise daily tours among them. This paper addresses the complex selection and touring problem and proposes a “filter-first, tour-second” framework for generating personalized tour recommendations for tourists based on information from social media and other online data sources. Collaborative filtering is applied to identify a subset of optional points of interest that maximize the potential satisfaction, while there are some preselected mandatory points that the tourists must visit. Next, the underlying orienteering problem is solved via an Iterated Tabu Search algorithm. The goal is to generate tours that contain all mandatory points and maximize the total score collected from the optional points visited daily, taking into account different day availabilities and opening hours, limitations on the tour lengths, budgets and other restrictions. Computational experiments on benchmark datasets indicate that the proposed touring algorithm is very competitive. Furthermore, the proposed framework has been evaluated on data collected from Foursquare. The results show the practical utility and the temporal efficacy of the recommended tours.     

The European refugee crisis and the natural rate of output

The European Commission follows a harmonized approach for calculating structural (potential) output for EU member states that takes into account labour as an important ingredient. This article shows how the recent huge migrants’ inflow to Europe affects trend output. Due to the fact that the immigrants immediately increase the working population but effectively do not enter the labour market, we illustrate that the potential output is potentially upward biased without any corrections. Taking Germany as an example, we find that the average medium-term potential growth rate is lower if the migration flow is modelled adequately compared to results based on the unadjusted European Commission procedure.     

PRICE SETTING OF MARKET MAKERS: A FILTERING PROBLEM WITH ENDOGENOUS FILTRATION

This paper studies the price‐setting problem of market makers under risk neutrality and perfect competition in continuous time. The classic approach of Glosten–Milgrom is followed. Bid and ask prices are defined as conditional expectations of a true value of the asset given the market makers' partial information that includes the customers' trading decisions. The true value is modeled as a Markov process that can be observed by the customers with some noise at Poisson times. A mathematically rigorous analysis of the price‐setting problem is carried out, solving a filtering problem with endogenous filtration that depends on the bid and ask price processes quoted by the market maker. The existence and uniqueness of the bid and ask price processes is shown under some conditions.     

动液面谱减法滤波

动液面滤波是油井检测动液面的关键技术之一。文章利用谱减法处理油井动液面信号,消除背景噪声的影响,并改进谱减法应用到动液面滤波,取得较好的滤波效果,从而提高对液面反射波位置的辨识能力。     

心理健康教育视域下的校园文化景观教学——以福建商业高等专科学校为例

在校园文化建设中,景观建设是其基本内容。商专校园文化景观贯穿继承与弘扬"闽商精神"的根本理念,将几大文化板块相融通,构造出丰富多彩的内容。探讨校园文化景观与心理健康教育的关系,结合相关的基础理论,分析校园文化景观对心理健康教育的多重积极作用,使心理健康教育的情境化教学方式落到实处,有益于心理健康教育的良性发展,对深化高校心理健康教育的多样化途径的认识与理解也有借鉴作用。