山东沿海的海生龟类及其饲养研究

本文作者对山东沿海的海生电类，进行了30年的调查研究，结果表明：山东沿海生的海生电类共有二科五种。同时还对它们在人工饲养条件下，所必需的水环境及食物类型，做了阐述。     

Maneuvering control and trajectory tracking of very large crude carrier

This paper presents a complex control system of the ship motions in confined waters. The general structure of this system is based on the two different controllers connected in parallel. They are dedicated to the different tasks and operate in different conditions. One of them is based on the robust control technology while another is based on the fuzzy logic technique. To decide which controller to use depends on the velocity of the vessel. The control system was implemented at the first stage on a nonlinear multi-variable simulation model and at the second stage on a real-time object—floating, autonomous model of the very large crude carrier (VLCC tanker). The whole system was developed in the MATLAB/Simulink platform.     

基于网络药理学和分子对接探讨十味温胆汤治疗心绞痛的作用机制

目的：采用网络药理学及分子模拟对接的研究方法探讨十味温胆汤治疗心绞痛的潜在作用机制。方法：通过TCMSP、TCMID数据库获取十味温胆汤组方（半夏、陈皮、茯苓、黄芪、人参、熟地黄、酸枣仁、五味子、远志、枳实）的有效成分及对应的靶蛋白;使用GeneCard、OMIM数据库筛选出与心绞痛密切相关的作用靶点。运用CytoScape软件构建中药-组分-靶点网络图,运用STRING数据库构建蛋白质-蛋白质相互作用（PPI）网络图。利用R软件对中药-疾病交集靶点进行基因本体（GO）功能及京都基因与基因组百科全书（KEGG）通路富集分析。结果:十味温胆汤治疗心绞痛的核心药物成分是柚皮素、山柰酚、β-谷甾醇、槲皮素、川陈皮素等;核心靶点有肿瘤坏死因子(TNF)、丝氨酸/苏氨酸蛋白激酶(AKT1)、白细胞介素-6(IL-6)、血管内皮生长因子A(VEGFA)、白细胞介素-1β(IL-1β)等;十味温胆汤主要通过晚期糖基化终产物受体（AGE-RAGE）、脂质代谢、流体剪切应力、前列腺癌、乙型肝炎等信号通路来治疗心绞痛;分子模拟对接结果显示,十味温胆汤中槲皮素、山柰酚与Akt1、TNF均能实现较好的结合。结论：十味温胆汤可能通过调控细胞增殖与凋亡、血管生成、炎症反应、抗氧化应激等作用协同治疗心绞痛。     

黄河贯通时间的新探索

石化2井钻孔的元素地球化学研究表明，现代黄河三角洲地区元素组成具有明显的规律性，与现代黄河沉积物元素组成相比，埋深233m之上的沉积物中大多数元素含量及元素之比与之接近，而233m之下的沉积物元素组成则明显偏离黄河物质的化学组成。上部与下部沉积物的元素组成明显不同。差别函数及物源指数计算结合岩性、粒度分析揭示，黄河物质在该地区的影响深度可达233m左右，因此，推测大致在早更新世时黄河贯通并流进华北平原的现代黄河三角洲地区。     

三种机器学习方法在广东雷暴大风自动识别的应用效果评估

基于2012—2019年自动站雷暴大风观测实况和对应雷达回波,利用传统机器学习方法(决策树)和深度学习方法(CNN、YOLO)等三种机器学习方法分别建立雷暴大风自动识别模型。根据广东雷暴大风回波特征,选取50 dBZ高度、反射率因子强度梯度等5个回波参量作为决策树的特征因子;将1～9 km高度的雷达回波分为11层,作为YOLOv3的输入层,使其由原3个特征层扩展到11层,训练优化后的YOLOv3可更合理刻画雷暴大风的空间结构特征。经批量测试和业务试运行试验,检验结果表明：三种模型中基于决策树的模型虚警最高,基于CNN的模型漏报最多,基于YOLO的模型识别效果最好,其POD和CSI均最高。通过对广东2020年汛期5次系统性和5次局地性雷暴大风过程进行分类型自动识别效果评估,并选取任意天气下长达30天连续时段进行不间断识别检验,结果表明该算法对于不同类型的雷暴大风均有较好的识别能力,具备业务化应用前景。     

Merging science into community adaptation planning processes: a cross-site comparison of four distinct areas of the Lower Mekong Basin

Climate change is increasingly affecting rural areas worldwide. The Lower Mekong Basin (LMB) is at particular risk due to heat stress, changing rainfall patterns, rising sea levels, and more frequent and extreme climatic events. It is imperative that local-level adaptation plans are developed in a manner that builds resilience to these growing threats. Strategies for developing adaptation plans tend to comprise predominantly science-led or predominantly community-led processes. This study examines an approach that balances inputs from both processes in characterizing community vulnerability as a component of the adaptation planning workflow. Evaluation sites are located within four distinct sub-regions of the LMB: the Vietnam Mekong Delta, the Annamite Mountains of Lao PDR, the Cambodia central lowlands, and the mid-elevation forests of northern Thailand. Our results indicate that by merging science-based data with community-level perspective, knowledge gaps from both sides are filled and a more comprehensive understanding of vulnerability is factored into adaptation planning.     

柴北缘超高压变质带的新元古代变质作用——来自锡铁山副片麻岩的岩石学及独居石年代学证据

同一造山带中所包含的多期造山作用信息是研究不同时代区域构造演化的重要依据,对理解不同时期造山过程中岩石组合及其地球化学演化有重要的指示意义。但由于晚期造山作用往往会部分或者完全抹除岩石中保存的早期造山作用信息,使得对记录多期造山作用的岩石中早期造山带变质作用及年代学信息的研究变得十分困难。独居石为一种副变质岩中的常见副矿物,由于其具有很高的U-Th-Pb体系封闭温度和对流体及变质温压条件的敏感性,使其可以记录多期造山过程中丰富的年代学信息。电子探针独居石原位化学定年方法使得年代学信息与岩石中矿物学信息及变质反应相联系,从而得到不同时期岩石记录的P-T-t轨迹。我们利用独居石电子探针原位U-Th-Pb定年手段与岩石学研究相结合的方法,在柴北缘早古生代加里东期超高压变质带锡铁山地区的含石榴石蓝晶石/夕线石黑云斜长片麻岩基质矿物及石榴石变斑晶的独居石中获得886±18Ma格林威尔期的年龄等时线。独居石稀土元素配分特征与新元古代变质独居石相吻合。通过传统矿物对温压计计算得到格林威尔期现存矿物组合记录了高角闪岩相变质温压条件607~727℃,6.5~10.0kbar,略高于区内记录古生代变质作用的副片麻岩。与记录古生代加里东期变质年龄的副片麻岩相比,格林威尔期副片麻岩在微量元素地球化学上具有高的稀土总量和明显的Eu的负异常特点(Eu/Eu*=0.50),并相应的亏损Ba、Sr元素,表现出活动大陆边缘沉积岩的地球化学特征。结合全球格林威尔期造山事件及罗迪尼亚超大陆的形成及裂解过程,我们认为柴北缘地区在新元古代时期应为与罗迪尼亚超大陆形成有关的活动大陆边缘地区。     

四川米易前寒武纪低压变质地体的初步研究

米易变质地体主要由变泥质岩、变碳酸盐岩及变基性岩组成。除小部分地区发生了混合岩化作用,经历了高级变质作用外,它们分别经历了绿片岩相和角闪岩相的变质作用。角闪岩相的变质温压条件为600—700℃和3000—4000bar。另外,根据矿物组合和矿物化学的研究,变泥质岩可分为绿泥石、黑云母-石榴石、红柱石和夕线石四个带。所有的证据表明该变质地体是一个典型的前寒武纪低压型前进变质地体。     

福建龙凤场黄铁矿型多金属矿床成因研究及找矿方向

闽西南-粤东海西-印支断陷带是我国华南重要成矿带之一,盛产铁、硫多金属矿床.龙凤场硫多金属矿床是其中较典型的代表,对其成因认识不一.经研究认为应属海底火山热泉沉积-迭加改造复合型矿床.     

CRUSTAL ANISOTROPY AND ITS TECTONIC IMPLICATIONS IN THE CHONGQING REGION

The receiver function which carries the information of crustal materials is often used to study the shear-wave velocity of the crust as well as the crustal anisotropy. However, because of the low signal-to-noise ratio in Pms(P-to-S converted phase from the Moho), the crustal anisotropy obtained by shear-wave splitting technique for a single receiver function usually has large errors in general. Recent advance in the analysis method based on Pms arrival time varying with the back-azimuth change can effectively overcome the above defects. Thus in this paper, we utilize the azimuth variations of the Pms to study the crustal anisotropy in Chongqing region for the first time. According to the earthquake catalogue provided by USGS, seismic waveform of earthquakes with magnitude larger than 5.5 and epicenter distance range of 30°~90° between January 2015 and December 2016 are collected from 14 broadband seismic stations of Chongqing seismic network. We carry out the bootstrap resampling to test the reliability of the radial maximum energy method for the observation data. In addition, we also applied the receiver function H-Kappa analysis in this paper to study the crustal thickness and Poisson's ratio. Our results show the crustal thickness ranges from 40~50km, and there is a thin and thick crust in the southern and northern Chongqing, respectively. The crustal average Poisson's ratio ranges from 0.23~0.31, the Poisson's ratio reaches the maximum value in the central part of Chongqing, while the Poisson's ratio in the northern and southern parts of Chongqing is obviously low. We obtain the crustal anisotropy from 9 stations in total. The delay time of crustal anisotropy distributes between 0.08s and 0.48s, with the average value of 0.22s. Among them, the CHS, QIJ and WAZ stations in central Chongqing have relatively large crustal delay time(>0.3s), followed by ROC station in the western Chongqing(0.25s), while the delay time in CHK station in northern Chongqing and WAS station in southern Chongqing are 0.08s, showing relatively weak crustal anisotropy. The fast polarization directions(FPDs)also change obviously from south to north. In southern Chongqing, FPDs are dominant in NNE-SSW and NEE-SWW, while the FPDs in WAZ station change to NWW-SEE, and the FPDs appear to be NW-SE in CHK in the northern Chongqing. In general, the FPDs are sub-parallel to the strikes of faults in most areas of Chongqing areas. Combined with other results from GPS observations, tectonic stress field and XKS splitting measurements, the main conclusions can be suggested as following:The cracks preferred orientation in the upper crust is not the main source of crustal anisotropy in Chongqing area. The crust and lithospheric upper mantle in the eastern Sichuan fold belt(ESFB)and Sichuan-Guizhou fault fold belt(SGFFB)are decoupled, and the deformation characteristics in the north and south parts of ESFB and SGFFB is different. The complex tectonic deformation may exist beneath the mountain-basin boundary, causing the fast directions of crustal anisotropy different from that in other areas of ESFB and SGFFB. The faults with different strikes may weaken the strength of average crustal anisotropy in some areas. The crustal deformation in southern Dabashan nappe belt(DNB)may be mainly controlled by the fault structure.