广东房地产业发展现状与前景分析

房地产开发热潮令理论界，新闻界和广大民众所关注，本文试图对广东省房地产发展的现状、特点及其主要问题作全面的分析，并提出解决问题的对策和建议，以及对广东省房地产业的发展前景作尝试性的探讨。     

论民俗旅游资源的基本特征及其开发原则

富有民族特色的民俗旅游是一项具有广阔前景的旅游项目。民俗旅游资源具有世界性、地域性、集体性、增智性和封闭性等基本特征。开发利用民俗旅游资源要严格掌握和妥善运用有关的民族政策，保护民族利益；要注重发挥民俗资源特色和保护当地社会文化环境，避免盲目仿效、随意移樾和粗制滥造；要区分主次，重点开发，切忌一拥而上；要注意把当地民俗资源优势与其它景观优势结合配置，增强吸引力，提高效益。     

快速工业化区域土地利用变迁机制研究:发展模式视角——以佛山市南海区为例

从发展模式及其变迁的全新视角研究快速工业化区域土地利用变迁,有利于深刻揭示发展模式对区域土地利用变迁的重要影响机制,从而为制定合理有效的调控对策提供理论依据。文中利用历史普查、更新调查和逐年统计数据,结合卫星影像资料和实地调研,在简要分析典型案例区域佛山市南海区耕地变化和建设用地扩张时空特征的基础上,重点从发展模式及其变迁的视角,综合研究快速工业化区域土地利用变迁的动力机制与过程,并进一步探讨新形势下区域发展与土地利用的耦合调控对策。     

制度约束与路径选择——珠三角高密集城中村治理改造的困境与出路

从珠三角高密集城中村的形成入手，探讨其与外向型乡村城市化以及相关制度约束的关系，从而揭示了高密集城中村空间现象的形成过程。同时，对近年来珠三角各城市治理与改造高密集城中村的相关模式与对策进行梳理与评价，指出目前珠三角各城市的城中村治理中的挫折与困境（适应性效率不足），客观上反映了国家宏观制度供给结构与先行快速城市化地区的制度落差，珠三角大都市地区城中村的最终都市化将是一个长期的过程。文中针对目前城中村治理改造的问题与困境，提出珠三角高密集城中村空间治理予以重视的若干政策思路。     

1614年平遥—榆社间61／2级地震的讨论

通过对1614年平遥榆社间6(1/2)级地震的进一步研究,认为前人确定这次地震时所用的史料疑点较多,所确定的基本参数也问题较大.得出是两次地震事件的结论:一次是1614年10月15日(万历四十二年九月十三日),地点武乡,震级约为5(1/2)级;一次是1614年10月23日(万历四十二年九月二十一日),地点榆社,震级约5(3/4)级.     

Tectonic setting of post-orogenic granites within SW Fennoscandia based on deep seismic and gravity data

Within the Svecononvegian Province of SW Scandinavia granite intrusions are abundant. Prominent ones are the Bohus-Iddefjord and the Flå granites, the so- called Bohus-Flå Granite belt. The age of these granites, consistent at ≅ 900 Ma, coincides with the late extensional stage of the Svecononvegian-Grenvillian orogen. Gravity observations and deep seismic profiling lines are presented that also cover the Skagerrak Sea. The geophysical data suggest that the Bohus granite continues seaward for at least 80 km and its thickness, offshore, is estimated to be 2–4 km. Where the seismic profiling lines intersect the inferred seaward extension of the Bohus granite, a distinct reflection pattern is observed at ≅ 1.6 s. TWT. This coincides with a gravity modelled thickness of ≅ 4 km. The seismic profiles also show a large Moho offset beneath the modelled granite. It is proposed that this offset is related to Svecononvegian crustal underthrusting and that the granite melt could have formed by anatexis of mid-crustal rocks downthrusted to greater depths in the vicinity of the seismically observed Moho offset.     

山西离柳集团化肥厂雷击原因分析及防雷方案

离柳集团化肥厂几乎每年均遭受雷害侵袭造成较大损失。本文对雷击原因（特别是DCS系统雷击原因）进行了系统分析并提出综合防雷方案。该方案2007年实施后取得良好的防雷效果。     

In Situ U‐Th‐Pb Dating and Sr‐Nd Isotope Analysis of Bastnäsite by LA‐(MC)‐ICP‐MS

Bastnäsite is the end member of a large group of carbonate–fluoride minerals with the common formula (REE) CO₃F·CaCO₃. This group is generally widespread and, despite never occurring in large quantities, represents the major economic light rare earth element (LREE) mineral in deposits related to carbonatite and alkaline intrusions. Since bastnäsite is easily altered and commonly contains inclusions of earlier‐crystallised minerals, in situ analysis is considered the most suitable method to measure its U‐Th‐Pb and Sr‐Nd isotopic compositions. Electron probe microanalysis and laser ablation (multi‐collector) inductively coupled plasma‐mass spectrometry of forty‐six bastnäsite samples from LREE deposits in China, Pakistan, Sweden, Mongolia, USA, Malawi and Madagascar indicate that this mineral typically has high Th and LREE and moderate U and Sr contents. Analysis of an in‐house bastnäsite reference material (K‐9) demonstrated that precise and accurate U‐Th‐Pb ages could be obtained after common Pb correction. Moreover, the Th‐Pb age with its high precision is preferable to the U‐Pb age because most bastnäsites have relatively high Th rather than U contents. These results will have significant implications for understanding the genesis of endogenous ore deposits and formation processes related to metallogenic geochronology research.     

基于数值预报和随机森林算法的强对流天气分类预报技术

随机森林算法是当前得到较为广泛应用的机器学习方法之一,有着很高的预测精度,训练结果稳定,泛化能力强,解决多分类问题有明显优势。本文将随机森林算法应用于强对流的潜势预测和分类,分短时强降水、雷暴大风、冰雹和无强对流四种类别,基于2005—2016年NCEP 1°×1°再分析资料计算的对流指数和物理量,开展强对流天气的分类训练、0～12 h预报和检验,经2015—2016年独立测试样本检验表明,针对强对流发生站点的点对点检验,整体误判率为21. 9%,85次强对流过程基本无漏报,模型尤其适用于较大范围强对流天气。随机森林算法筛选的因子物理意义较为明确,和主观预报经验基本相符,模型准确率高,可用于日常业务。     

Seasonal circulation in the southeastern Huanghai Sea

The seasonal circulation in the southeastern Huanghai Sea has been studied with hydrographic data,which were observed in February and June 1994 and bimonthly during 1970-1990,and numerical model results.Horiwntal distributions of temperature and salinity in 1994 are quite different due to strong tidal mixing so that we need a analysis to see the real distributions of water masses.The mixing ratio analysis with the data of 1970-1990 shows the connection of the waters in the west coasts of Kotea Peninsula with warm and saline waters from the south in summer,which means northward inflows along the west coasts of Korea Peninsula in summer.With this flow,the seasonal circulations,which are deduced from the seasonal change of water mass distributions in the lower layer,are warm inflows in winter and mld outflows in summer in the central Huanghai Sea,and cold outflows in winter and warm inflows in summer along the west coasts of Korea Peninsula.The seasonally changed inflows might be the Huanghai Sea Warm Current.The monsoon winds can drive such circulations.However,summer monsoon winds are weak and irregular.As one of other possible dynamics,the variation of Kuroshio transport is numerically studied with allowing sea level fluctuations.Although it should be studied more,it possibly drives the summer circulations.The real circulations seem to be driven by both of them.