The North Korean economy seen by satellite: Estimates of national performance,regional gaps based on nighttime light

External estimates must be used to assess North Korea’s economy because Pyongyang authorities withhold economic statistics. The Bank of Korea’s figures are considered the most widely employed estimates. However, they have several limitations. This paper estimates North Korea’s economic growth over a more than 20-year period, by analyzing the nighttime lighting, as recorded by orbiting satellites. The data is more objective and reliable than other data used to evaluate the North Korean economy. It indicates steady growth after 2000, contradicting Bank of Korea estimates. The methodology also has the advantage of being able to gauge regional economic activity. Performance varied widely among regions, the result of internal factors such as market activities and external factors such as trade with China and economic cooperation with South Korea.     

对西部地区财税问题的思考

本文认为,西部地区经济欠发达有财税政策方面的原因,如地区财政支出总量不足,结构欠佳,经济发展的财政基础较为薄弱;东西部地区投资的原有财税政策差异明显,严重阻碍了资本的西流;缺乏强有力的财政政策投融资体系与政策的支持等。因此,要开发西部,关键是财税政策的调整与改进。     

一种适于卫星定位与通信系统的扩频ALOHA信道模型

随着人们对通信需求的不断增长，带来了如何有效地利用频率问题，同时也产生了越来越多的多址技术。本文将扩频技术与随机ＡＬＯＨＡ通信方式相结合，提出了一种适于卫星定位与通信系统的扩频ＡＬＯＨＡ信道模型。并对此信道的信道利用率进行了计算，得到了好的结果。全文还对定位与通信构成一体化系统的可实现性做了详细描述。最后，简单介绍了双星定位及通信系统的定位原理。     

Satellite fans: Does sport nostalgia influence purchase intention toward sponsors’ products?

The purpose of this study was to investigate how nostalgia influences their attitude towards the European Professional Football Leagues (EPFL) sponsors and purchase intention towards EPFL sponsors' products. Based on a convenience sampling, a total of 317 EPFL fans in Singapore responded to an online survey that included items on sport nostalgia, attitude towards EPFL sponsors, and intention to purchase EPFL sponsors' products. Data were analysed using confirmation factor analysis (CFA) and structural equation modelling (SEM). The results showed that sport nostalgia had a direct positive effect on both attitude and purchase intention towards EPFL sponsors’ products. Also, this study found that sport nostalgia had a significant indirect effect on purchase intention through attitude. From the findings of this research, sponsors could understand the role of sport nostalgia and would be able to implement marketing strategies that direct their consumers to purchase their products.     

乌拉圭回合的回顾与展望

<正> 1986年9月来自90多个国家和地区的100多名部长在乌拉圭埃斯特角城开会发表了部长宣言,正式发动第八轮多边贸易谈判(即乌拉圭回合)。要求参加并获准的国家和地区有105个。部长宣言决定了谈判范围和目标,主要是传统的货物贸易和三个新领域:服务业、与贸易有关的投资问题和知识产权问题。在组织机构方面,部长们几经磋商,于1987年2月一致同意,此次回合分为14个谈判议题组,并设立一个服务业谈判组。自此,各议题组在日内瓦分别进行了谈判。本文主要将各组的谈判情况,以及蒙特利尔中期审评和日内瓦高级官员会议情     

资源卫星接收站高分辨率实时快视处理

本文较系统地阐述了资源卫星地面接收站对遥感图像的高分辨率实时快视处理方法。文中提出了主要针对接收美国Landsat卫星TM数据的实时快视系统方案,其具有1024×1024显示的高分辨率,兼顾了多功能、低成本、简易性和对不同类型遥感数据快视处理的兼容性等特征,为我国已建的和即将兴建的资源卫星接收站配置实时快视系统提供了一条有效途经。     

从精准扶贫走向跨区域联合开发——基于我国深度贫困县分类研究基础上的扶贫战略升级建议

我国扶贫工作经历了漫长的艰苦奋战,尤其2015年以来,精准扶贫力度空前加大、成效显著,终于在2020年末,我国脱贫攻坚取得胜利、彻底消除绝对贫困.然而,从贫困县尤其深度贫困县情况看,由于贫困区自身条件较为恶劣而且连片贫困区域较多,许多区域虽如期脱贫、消除了“绝对贫困”,仍无法短期内根除“相对贫困”.笔者在对全国334个深度贫困县分类研究和实地考察基础上,拓展精准扶贫思路,从贫困连片区、跨县角度研究,提出了跨区域联合开发的扶贫战略升级建议.     

城市商业银行跨区域经营思考——基于宁夏银行和石嘴山银行的案例研究

城市商业银行跨区域经营将有助于自身做大规模,产生规模效应,迅速提高自身经营效益,同时也满足了客户的跨区域业务需求。但与此同时,城商行跨区域经营后存在的隐患也引起了社会各界的广泛关注与担忧。本文以宁夏银行和石嘴山银行的跨区域经营为案例,介绍了两家城商行跨区域经营的发展现状,剖析了城商行跨区域经营存在的问题。在此基础上对城商行跨区域经营提出了有针对性的建议。     

卫星应答机用30GHz单片微波集成电路接收机

木文首先介绍了全微波集成电路(MMIC)化接收机的构成,然后讨论了低噪声放大器、宽带相移网络的镜像抑制型混频器、压控振荡器、模拟分频器、倍频器的MMlC电路设计和试验结果,以及利用这些MMIC电路构成镜像抑制型变频器和锁相环型本振,研制全MMIC化接收机的实践.     

微波(卫星)站抗广播、电视干扰的方法

本文主要论述了微波、卫星通信局站为了抑制来自外界空间电视、广播信号的干扰,在抗干扰过程中,根据不同的干扰引入渠道,查找干扰入口的途径,采用接地、屏蔽和滤波来解决于扰的方法。