房地统一登记的数据组织与存储模型研究

从物权法出发,分析了房地统一登记的实体对象,建立了实体对象之间逻辑关系模型。由逻辑关系模型导出房地统一登记的数据关系模型,并将该关系模型与现有的房屋和土地登记关系模型进行了比较。结果表明:房地统一登记数据关系模型既与现有的登记数据关系模型保持着紧密的联系,又满足了房地统一登记的要求。文中最后讨论了房地统一登记数据的存储模式,即采用水平分片技术将变更实行逻辑存放,可有效提高数据的存储和访问效率。     

Henry’s law constant for phosphine in seawater: determination and assessment of influencing factors

The Henry’s Law constant (k) for phosphine in seawater was determined by multiple phase equilibration combined with headspace gas chromatography. The effects of pH, temperature, and salinity on k were studied. The k value for phosphine in natural seawater was 6.415 at room temperature (approximately 23°C). This value increases with increases in temperature and salinity, but no obvious change was observed at different pH levels. At the same temperature, there was no significant difference between the k for phosphine in natural seawater and that in artificial seawater. This implies that temperature and salinity are major determining factors for k in marine environment. Double linear regression with Henry’s Law constants for phosphine as a function of temperature and salinity confirmed our observations. These results provide a basis for the measurement of trace phosphine concentrations in seawater, and will be helpful for future research on the status of phosphine in the oceanic biogeochemical cycle of phosphorus.     

Evaluation and legal assessment of certified seafood

This study presents a legal review of international treaties to derive sound definitions of overfishing. It examines seafood stocks that were certified by the Marine Stewardship Council (MSC) or Friend of the Sea (FOS). Stock size and fishing pressure were compared with the internationally agreed reference points which both organizations have accepted. No suitable status information was found for 11% (MSC) to 53% (FOS) of the certified stocks. For the stocks with available status information, 19% (FOS) to 31% (MSC) had overfished stock sizes and were subject to ongoing overfishing. An analysis of legal implications of certification of overfished stocks suggests that a certifying body cannot be held liable for a violation of internationally agreed standards unless the domestic law of its home country so regulates. States may ban the import of fish products from overfished stocks, but only in very specific cases. Possible causes for the certification of overfished stocks are discussed and recommendations are given on how the certifiers could improve their performance. The study concludes that it is still reasonable to buy certified seafood, because the percentage of moderately exploited, healthy stocks is 3–4 times higher in certified than in non-certified seafood.     

广域土地卫片执法检查系统的设计与实现

采用先进的技术和创新的模式,设计了土地卫片执法检查系统。在了解卫片执法检查现状的基础上,结合卫片执法检查工作的新形势、新政策,介绍了系统的关键技术,提出了系统的卫片执法业务逻辑设计,对系统的管理、填报、展示、统计、汇总、调查、取证等主要功能及组成进行了设计与实现,创新了图斑精细划分、智能比对分析和快速主动核查的卫片执法检查模式,提升了卫片执法检查工作的效率和核查精度。     

下湄公河流域国际组织机构及相应法律文件研究

本文回顾了下湄公河流域合作开发与管理的有关国际组织机构变化，分析了《下湄公河流域持续发展合作协定》诞生及新湄委会成立的背景；对比了该流域有关水源及相关资源开发利用和管理的法律法规条款变化。     

MC14512—μPBS571C锁相频率合成器的低频扩展

本文研究了锁相环集成电路MC145152和双模前置分频器μρΒ571C的频率合成器在低频段的应用。通过对电路上的改进,实现了100～500MHz、10～100MHz、1～10MHz三种频段间的频率合成器,并且通过测量发现其性能良好,这样就实现了该频率合成器在低频段的扩展。文中给出了3.4～4.2MHz,66～76MMz两种频率合成器的数据结果。     

深海底生物多样性与基因资源管理问题

20世纪海洋科学重大成果之一是伴随着深海科学研究、技术发展及海底矿产资源的勘查进程，发现并明确了深海底极端环境下的生物多样性。深海底生物多样性和基因资源管理问题已引起国际社会的广泛关注，也促使国际海底管理局①对正在制定的多金属硫化物和富钴结壳勘探规章提出更为严格的环境监测和评价的要求。介绍了深海底环 境及人类可能影响这一环境的有关活动；现有国际法律的适用性和国际社会正在采取的措施；我国应对的有关政策与措施。     

中国城市规模分布的形态和演化与城市增长模式——基于Zipf定律与Gibrat定律的分析

鉴于以往研究较少关注城市规模分布形态的规模差异性和城市规模分布演化与城市增长模式之间的关联,论文基于1953—2010年中国6次人口普查数据,选择了全部城市(包含地级市市区和县级市)和地级市(地级市市区)2种样本组,对中国城市位序规模分布的形态特征、演变趋势及其与Gibrat定律间的关系进行了实证分析。结果显示,中国的城市规模分布主体符合Zipf定律的线性分布,但两端即小城市和超大城市因规模不足而偏离线性分布,这一现象也得到全球各国证据的支持;从演化角度来看,中国城市规模分布在早期逐渐分散化并偏离Zipf定律,但从2000年开始转而向符合Zipf定律的方向回归,其中大城市率先在1990年就开始了转向,与这一阶段城市人口随机增长表现出耦合性,从而验证了Zipf定律和Gibrat定律的逻辑一致性。该发现对于促进中国城市规模分布高质量发展具有重要启示。     

Cooperation and compliance control in areas beyond national jurisdiction

Past decades have shown a constant increase in the number of international agreements regulating marine areas. Environmental changes as well as technological developments resulting in an increased use of oceans ensure the need for further governance in the future of high seas. At the same time, compliance by States with international obligations remains a considerable challenge in international law. In particular, regulations governing areas beyond national jurisdiction (ABNJ) are at risk of not being obeyed due to factual challenges posed to the control of high seas territories and the (legal) limits of the law of the sea. This article evaluates a stronger cooperation between States through the incorporation of compliance control systems in agreements regulating ABNJ in order to enhance compliance by States. For this purpose, provisions on compliance control measures which have already been established in two agreements regulating ABNJ, namely the International Convention for the Regulation of Whaling and the United Nations Fish Stocks Agreement, are analyzed. It is argued that the incorporation of compliance control elements into agreements regulating ABNJ is a promising avenue to secure improved compliance among States Parties and further implementation of this approach is recommended.