TV信号的多路传输及带宽压缩

本文阐述了时间压缩信号及其频谱、各种差分信号的产生方法及频带压缩过程.最后对图象带宽为4.2MHz的TV系统用8.4MHz带宽传送三个TV信号的具体执行力式作了介绍.     

Towards a complete real-time electricity market design

The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices, if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission. The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.      

对再造商品流通渠道的分析

随着电子商务和营销管理理论的发展,企业越来越重视商品流通渠道再造。商品流通渠道直接决定了企业的效率和效益,企业应再造能实现企业价值最大化的商品流通渠道。     

论创建纳税人管理体制

纳税人管理体制是国家监管纳税人经济行为活动的基本经济制度及其运作机制。创建纳税人管理体制是中国经济与行政管理体制改革的主导目标取向 ,其社会经济条件日趋成熟。应通过健全法制、统一税费、变革政府职能、全面加快国民经济信息化进程、建立高素质税务、司法、执法队伍和校正社会生活准则、发展纳税人中介服务等途径 ,在全社会加速创建纳税人管理体制。     

An institutional analysis of supply chain innovations in global marketing channels

The adoption of sophisticated supply chain innovations by trading partners in global channels of distribution is often limited by the institutional context of the international transaction. In particular, the regulatory, normative, and cultural-cognitive elements of institutional environments around the world can enhance or inhibit the ability of trading partners to craft the contractual, ownership, and social elements of institutional arrangements required by an innovation. Because supply chain innovations often require costly, new investments and activity sets, firms may be reluctant to participate in an innovation unless a new institutional arrangement can be crafted to provide adequate safeguards and guarantees. A conceptual model is developed to explain the role of institutions in the successful deployment of supply chain innovations in global marketing channels.     

房地产融资渠道分析

由于国家银根收缩，房地产融资难度增大，加上中国房地产金融体系尚未完善，融资渠道狭窄，在一定程度上限制了我国房地产业的发展。房地产业需要新的融资渠道，如信托、基金、债券等取代传统的银行贷款融资模式。针对新的市场现状，各房地产企业必须加强资本运作能力，扩大融资渠道，创新金融产品。     

关系型融资对货币政策传导的影响效应探析

中国文化在一定程度上是一种关系本位的文化。渗透于我国社会生活的所谓关系网,对我国的经济活动有深刻的影响。本文选择了关系型融资对货币政策传导的影响这一视角,通过构建关系型融资对货币政策传导的影响的模型,考察了银行收益与融资量和概率间的关系,同时考察了企业融资需求与价格间的关系。通过研究发现央行单一紧缩货币总量、管制利率政策都难以有效控制商业银行的关系型贷款量,而关系型融资情况下信息不对称和预算软约束的存在更使央行的货币政策难于有效传导,央行的总量性货币政策难于奏效。为此,本文探讨了提高央行货币政策有效性的对策,以期达到货币政策对关系型融资的有效传导。     

数字金融、银行信贷渠道与货币政策传导

作为新兴金融业态,数字金融发展会对既有金融体系带来怎样的冲击和影响?聚焦于货币政策传导机制这一宏观命题,立足于我国以银行信贷渠道为主导的数量型中介,运用我国商业银行、A股上市公司的微观面板数据,本文深度剖析了数字金融发展与货币政策银行信贷渠道传导之间的内在联系和影响机理。研究发现:(1)数字金融发展显著弱化了货币政策银行信贷渠道的传导效应,采用工具变量法克服内生性和控制影子银行变量等一系列稳健性检验后的结果依然支持该结论。(2)具体而言,数字金融削弱银行信贷渠道传导效果是通过改变银行资产负债结构和弱化实体企业对银行贷款的依赖而实现的。(3)上述弱化效应在以城市和农村商业银行为主的中小型金融机构以及低资本、低流动性和低报酬的银行中尤为突出。     

税收竞争与地区环保财政支出: 传导机制及其检验

分析税收竞争、资本流动及环保支出的关系并提出假说;在此基础上建立空间杜宾模型,并使用2007-2016年省级数据系统地考察税收竞争对政府环保支出的影响机制。研究结果表明：地区间环保支出存在显著的空间溢出效应,税收竞争与地区环保支出正相关;地区间环保支出存在明显的策略性互动;资本存量是税收竞争影响环保支出的一个主要传导渠道。     

Cross-channel integration – is it valued by customers?

It has been common for retail companies to use multiple channels simultaneously. However, simultaneous use is only the first step in creating a customer-centric multichannel system that demands channel synergies rather than parallel retail formats. Therefore, the perceived integration of customer-related functions and processes between the channels of multichannel systems is analyzed with respect to its significance for customer loyalty and usage of a multichannel system. Drawing on a sample (n) of 981 customers, the results indicate that linkages between retail channels positively affect customer loyalty and verify the importance of establishing a well-integrated – ‘seamless’ as perceived by the customer – multichannel system.