湖南隘口基性-超基性岩群发现镍钴（铌钽）矿化点

正1研究目的(Objective)雪峰山地区基性-超基性岩分布广泛(图1),湖南省陆续开展了几个针对基性-超基性岩镍钴铜金矿床找矿的项目,并取得了一定的进展,以通道县长界岩浆硫化物型镍矿为典型代表。目前该区勘查程度较低,矿化控制程度不足,探获资源量小,但     

印度尼西亚苏门答腊岛斑岩型铜(钼)矿产资源定量评价

应用“三步式”矿产资源定量评价方法,在对苏门答腊岛典型斑岩型铜（钼）矿床成矿特征进行分析基础上,构建该类铜（钼）矿床的描述性模型,认为该区斑岩型铜（钼）矿床与苏门答腊岛弧新生代中酸性次火山岩系关系密切,NW向苏门答腊断裂及其次级断裂起到控岩控矿的作用;结合该区已知铜（钼）矿床（点）分布及1：100万低密度地球化学测量成果,圈定了4处铜（钼）成矿远景区;根据密度模型公式估算出该区在90%、50%和10%预测概率下的矿床数;利用蒙特卡洛模拟方法预测该区斑岩型铜（钼）矿产在不同预测概率下的铜（钼）资源量,结果显示苏门答腊岛斑岩型铜（钼）矿产资源潜力巨大。     

Otolith shape analysis for stock discrimination of two Collichthys genus croaker(Pieces: Sciaenidae,) from the northern Chinese coast

The otolith morphology of two croaker species(C ollichthys lucidus and C ollichthys niveatus) from three areas(Liaodong Bay, LD; Huanghe(Yellow) River estuary, HRE; Jiaozhou Bay, JZ) along the northern Chinese coast were investigated for species identifi cation and stock discrimination. The otolith contour shape described by elliptic Fourier coefficients(EFC) were analysed using principal components analysis(PCA) and stepwise canonical discriminant analysis(CDA) to identify species and stocks. The two species were well dif ferentiated, with an overall classifi cation success rate of 97.8%. And variations in the otolith shapes were significant enough to discriminate among the three geographical samples of C. lucidus(67.7%) or C. niveatus(65.2%). Relatively high mis-assignment occurred between the geographically adjacent LD and HRE samples, which implied that individual mixing may exist between the two samples. This study yielded information complementary to that derived from genetic studies and provided information for assessing the stock structure of C. lucidus and C. niveatus in the Bohai Sea and the Yellow Sea.     

本溪—集安地区三维地质结构重磁电综合解释

本溪—集安地区的三维地质填图对于该区深部找矿具有重要意义。本文通过对该区5条实测重磁电剖面的数据处理以及对实测物性标本数据的整理分析,结合该区已有地质、地球物理等其它资料,对5条剖面进行了综合地质地球物理解释,初步得到了研究区的三维地质结构。     

车载激光雷达点云与全景影像的自动配准

针对激光雷达点云数据缺乏纹理信息的问题,该文提出一种基于互信息的车载激光雷达点云与全景影像配准方法。该方法使用统一的球面全景成像模型,引入互信息作为相似性测度,将车载激光雷达点云生成的深度图与信息提取后的全景影像进行配准,实现配准参数的自动、高精度解算。同时,对车载激光雷达点云与全景影像配准的精度进行评定与分析。实验结果表明,车载点云与全景影像的配准方案是可行的,具有较高的配准精度。     

在役结构后役期的设防烈度探讨

根据在役结构的ldquo;后验性rdquo;、时变性、ldquo;耐久性rdquo;特点, 针对目前我国在城市改造与抗震加固中出现的在役结构后续使用期（后役期）防御烈度形式: 等烈度、等超越概率、等发生率方法, 详细分析了它们的风险特点,并提出了作者的看法.      

车载全景影像与激光点云数据配准方法研究

全景影像与激光点云的高精度配准是车载移动测量系统中多传感器数据集成处理的关键环节。本文针对车载多面阵拼接全景影像与激光点云的配准问题, 提出了一套高精度的数据配准方法。通过高密度的静态激光点云解算每个面阵CCD在激光扫描仪坐标系下的外标定参数, 以实现单张CCD影像与激光点云在扫描仪坐标系下的配准, 在全景拼接过程中全景影像与单张CCD影像精确的映射关系已知, 利用扫描仪坐标系、POS坐标系及WGS-84坐标系间的转换关系即可获得全景影像与激光点云在物方坐标系下的动态、高精度的配准参数。试验表明该数据配准方法精确可靠、适用性强, 能满足基于全景影像与激光点云数据融合的城市道路竣工、部件采集、目标提取、三维重建等高精度量测应用需求。     

Application of otolith shape analysis for stock discrimination and species identification of five goby species （Perciformes： Gobiidae） in the northern Chinese coastal waters

We tested the use of otolith shape analysis to discriminate between species and stocks of five goby species( Ctenotrypauchen chinensis, Odontamblyopus lacepedii, Amblychaeturichthys hexanema, Chaeturichthys stigmatias, and Acanthogobius hasta) found in northern Chinese coastal waters. The five species were well differentiated with high overall classification success using shape indices(83.7%), elliptic Fourier coefficients(98.6%), or the combination of both methods(94.9%). However, shape analysis alone was only moderately successful at discriminating among the four stocks(Liaodong Bay, LD; Bohai Bay, BH; Huanghe(Yellow) River estuary HRE, and Jiaozhou Bay, JZ stocks) of A. hasta(50%–54%) and C. stigmatias(65.7%–75.8%). For these two species, shape analysis was moderately successful at discriminating the HRE or JZ stocks from other stocks, but failed to effectively identify the LD and BH stocks. A large number of otoliths were misclassified between the HRE and JZ stocks, which are geographically well separated. The classification success for stock discrimination was higher using elliptic Fourier coefficients alone(70.2%) or in combination with shape indices(75.8%) than using only shape indices(65.7%) in C. stigmatias whereas there was little difference among the three methods for A. hasta. Our results supported the common belief that otolith shape analysis is generally more effective for interspecific identification than intraspecific discrimination. Moreover, compared with shape indices analysis, Fourier analysis improves classification success during inter- and intra-species discrimination by otolith shape analysis, although this did not necessarily always occur in all fish species.     

上海市电力负荷与气象因子关系及精细化预报

电力负荷预测是电力调度的重要参考依据,气象条件对电力负荷有重要影响。利用上海市2004—2008年15 min 1次的电力负荷资料和宝山气象站 (区站号58362) 同一时段3 h 1次的气象观测资料,对上海市电力负荷特征进行分析,发现不同温度区间和不同天气类型电力负荷的日变化特征有明显差别。采用逐步回归方法得到各温度区间日平均气象负荷率的预报方程,通过系数订正,得出不同天气类型的逐时负荷预报。2009年试报结果显示:采用预报日前3 d的趋势负荷平均值作为预报当日的趋势负荷值,得到的日平均负荷预测值的误差最小,约为3.6%;非工作日日平均负荷的平均预报相对误差比工作日大;日平均气温超过18 ℃时,工作日日平均负荷的预报误差较小;低于18 ℃时,预报误差明显增大;逐时负荷平均预报误差约为4%。