4200kW同步电动机主回路系统设计

以4 200kW交-交变频同步电动机控制主回路工程为例,介绍了主回路线路图,并根据同步电动机的技术参数进行了主回路的参数计算,给出了主整流变压器、晶闸管、励磁变压器以及励磁晶闸管的参数选择方法,为国内其他钢铁企业大型主传动电机改造提供了参考。     

复杂网络

本文介绍了复杂网络的若干参数和具有代表性的复杂网络模型,以及其在经济管理中的若干应用领域,分析了应用复杂网络研究经济管理系统的两个关键问题——流与拓扑结构,阐述了应用流及拓扑结构研究经济与管理问题的基本思路。     

企业价值网低碳共生演化的序参量控制机理研究——“后危机时代”工业发展模式转型研究

每一次经济危机都会带来产业结构的大调整,并诱发工业发展模式的大转型。本文基于协同学的研究视角,选取了企业价值网作为研究对象,研究在后危机时代企业价值网实现低碳共生演化的序参量控制机理,进一步揭示企业价值网微观运行机理,为企业及政府在后危机时代实现企业价值网的低碳共生演化和低碳发展模式转型提供决策理论依据。     

低信噪比下LFM- PRBC信号参数的快速估计

为了解决目前算法中线性调频-伪码（LFM- PRBC）信号参数估计计算量较大的问题,提出了一种快速估计算法。该算法采用解线调与分数阶傅里叶变换（FRFT）进行参数的估计。首先对信号进行解线调估计出调频斜率的粗略值,然后由调频斜率确定旋转角,通过FRFT估计出码元宽度的粗略值。根据延时再进行解线调估计出调频斜率的精确值,再通过FRFT估计出码元宽度的精确值与起始频率。该算法不仅计算量较低,同时具有很高的估计精度与很强的抗噪性,仿真实验验证了该算法的有效性。     

浅谈某生活污水处理工程设计

文章介绍了某生活小区污水处理采用BAF工艺及各处理单元的主要技术参数,并对污水处理运行过程中存在的问题提出了改进措施。     

On the Sensitivity of Premiums and Reserves to Changes in Valuation Elements

Upon differentiating the Thiele differential equations and the equivalence condition with respect to some parameter appearing in the equations, one obtains differential equations for the derivatives of the state-wise reserves and the premium level with respect to the parameter. The solution to these equations measures the impact on premiums and reserves of a change in the parameter. Typically only numerical results can be obtained, but the method applies quite generally to multi-state policies and to virtually any parameter, and so represents a panacea in (the vast majority of) situations where analytical results are out of reach. Extensions to higher order derivatives and higher order conditional moments are straightforward. A difference method for computation is devised, and numerical results are reported for some practical cases.     

The heterogeneity of carbon Kuznets curves for advanced countries: comparing homogeneous,heterogeneous and shrinkage/Bayesian estimators

We investigate Carbon Kuznets Curves (CKC) relationships for advanced countries grouped in policy relevant groups – North America and Oceania, South Europe, North Europe – by means of various homogeneous, heterogeneous and shrinkage/Bayesian panel estimators. We try to provide an answer to the question ‘how sensitive are the CKC estimates to changes in the level of parameters' heterogeneity?’. We do find that in coherence with their ‘policy and economic’ commitment to carbon reductions and environmental market-based instruments implementation, bell shapes are present only for northern EU, which leads the group of advanced countries. The other two lag behind. We show for the first time that CKC shapes are present if we net out Europe of the southern and less developed countries. This is coherent with the Kuznets paradigm. The negative side of the tale is that they characterize a bunch of few countries. Other advanced countries lag behind and are far from reaching a CKC dynamics. Heterogeneous and Bayesian estimators clearly show this, with the EU presenting turning points closely around $13?000 per capita Gross Domestic Product (GDP). Heterogeneous panel estimates also show that for lagging countries presumed bell shapes turn into linear relationships. The stability of outcomes across models is stronger when we compare heterogeneous rather than homogeneous models. If it is compared with other studies, our analysis highlights a relative lower variability across specifications.     

基于条件证据更新方法的短时软/硬情报融合

介绍了软/硬情报融合新方法,分析了证据理论(DST)应用于软/硬情报融合的灵活性。 在此基础上,以Fagin-Halpern（FH） DS条件原理为依据,提出了一种面向情报融合中多源证 据的条件更新方法,避免了扩展识别框架,并明确了该方法的参数选取标准。另外,基于时间 表对融合过程进行短时划分,以提高融合的精确性。通过融合实例对所提方法进行了分析说 明。     

基于恒星测量的船载雷达轴系误差修正参数动态标定

提出了一种动态条件下通过船载经纬仪和雷达标校电视联合测恒星,标定雷达轴系 误差修正参数的数学方法,从理论上推导了相关的模型。在此基础上,通过实测数据进行了 试算分析。分析结果表明：利用动态标定方法给出的船载无线电雷达轴系误差修正参数吸 收了经纬仪光轴和雷达光轴之间的偏差,有效提高了雷达测角精度。     

Choice and design of regulatory instruments in the presence of green consumers

Using a vertically differentiated product model, this paper examines welfare implications of various government policies in a situation where consumers are environmentally discerning. It studies ad valorem taxes/subsidies and emission taxes. The optimal policy depends on the magnitude of damage parameter associated with environmental externality. For a given distribution of tastes and preferences, as the damage parameter increases from a low to a high value, the optimal policy shifts from an ad valorem tax to an ad valorem subsidy. It also shows that for a sufficiently low damage parameter, an ad valorem tax dominates an emission tax.