Mafic and felsic magmatism in the Wadi Kalalat area, South Eastern Desert, Egypt: mineralogy, geochemistry and geodynamic evolution during the Neoproterozoic in the Nubian Shield

In the south Eastern Desert of Egypt,two contrasting types of magmatism(mafic and felsic) are recorded in the Wadi Kalalat area,and form the Gabal El Motaghiarat and Gabal Batuga intrusions,respectively.The two intrusions post-dates ophiolitic and arc associations represented by serpentinite and metagabbro-diorite,respectively.The mafic intrusion has a basal ultramafic member represented by fresh peridotite,which is followed upward by olivine gabbro and anorthositic or leucogabbro.This mafic intrusion pertains to the Alaskan-type mafic-ultramafic intrusions in the Arabian-Nubian Shield(ANS)being of tholeiitic nature and emplaced in a typical arc setting.On the other hand,the Gabal Batuga intrusion comprises three varieties of fresh A-type granites of high K-calc alkaline nature,which is peraluminous and garnetbearing in parts.A narrow thermal aureole in the olivine gabbro of the mafic intrusion was developed due to the intrusion of the Batuga granites.This results in the development of a hornfelsic melagabbro variety in which the composition changed from tholeiitic to a calc-alkaline composition due to the addition of S_(i)O_(2),Al_(2)O_(3),alkalis,lithosphile elements(LILEs) such as Rb(70 ppm) and Y(28 ppm) from the felsic intrusion.Outside the thermal aureole,Rb amounts 2-8 ppm and Y lies in the range <2-6ppm.It is believed that the Gabal Batuga felsic intrusion started to emplace during the waning stage of an arc system,with transition from the pre-collisional(i.e.,arc setting) to post-collisional and within plate settings.Magma from which the Gabal Batuga granites were fractionated is high-K calc-alkaline giving rise to a typical post-collisional A-type granite(A_(2)-subtype) indicating an origin from an underplating crustal source.Accordingly,it is stressed here that the younger granites in the ANS are not exclusively post-collisional and within-plate but most likely they started to develop before closure of the arc system.The possible source(s) of mafic magmas that resulted in the formation of the two intrusions are discussed.Mineralogical and geochemical data of the post-intrusion dykes(mafic and felsic) suggest typical active continental rift/within-plate settings.

CMIP 6 models simulation of the connection between North/South Pacific Meridional Mode and ENSO

The subtropical North and South Pacific Meridional Modes(NPMM and SPMM)are well known precursors of El Niño-Southern Oscillation(ENSO).However,relationship between them is not constant.In the early 1980,the relationship experienced an interdecadal transition.Changes in this connection can be attributed mainly to the phase change of the Pacific decadal oscillation(PDO).During the positive phase of PDO,a shallower thermocline in the central Pacific is responsible for the stronger trade wind charging(TWC)mechanism,which leads to a stronger equatorial subsurface temperature evolution.This dynamic process strengthens the connection between NPMM and ENSO.Associated with the negative phase of PDO,a shallower thermocline over southeastern Pacific allows an enhanced wind-evaporation-SST(WES)feedback,strengthening the connection between SPMM and ENSO.Using 35 Coupled Model Intercomparison Project Phase 6(CMIP6)models,we examined the NPMM/SPMM performance and its connection with ENSO in the historical runs.The great majority of CMIP6 models can reproduce the pattern of NPMM and SPMM well,but they reveal discrepant ENSO and NPMM/SPMM relationship.The intermodal uncertainty for the connection of NPMM-ENSO is due to different TWC mechanism.A stronger TWC mechanism will enhance NPMM forcing.For SPMM,few models can simulate a good relationship with ENSO.The intermodel spread in the relationship of SPMM and ENSO owing to SST bias in the southeastern Pacific,as WES feedback is stronger when the southeastern Pacific is warmer.

Dynamical Predictability of Leading Interannual Variability Modes of the Asian-Australian Monsoon in Climate Models

The dynamical prediction of the Asian-Australian monsoon(AAM)has been an important and long-standing issue in climate science.In this study,the predictability of the first two leading modes of the AAM is studied using retrospective prediction datasets from the seasonal forecasting models in four operational centers worldwide.Results show that the model predictability of the leading AAM modes is sensitive to how they are defined in different seasonal sequences,especially for the second mode.The first AAM mode,from various seasonal sequences,coincides with the El Niño phase transition in the eastern-central Pacific.The second mode,initialized from boreal summer and autumn,leads El Niño by about one year but can exist during the decay phase of El Niño when initialized from boreal winter and spring.Our findings hint that ENSO,as an early signal,is conducive to better performance of model predictions in capturing the spatiotemporal variations of the leading AAM modes.Still,the persistence barrier of ENSO in spring leads to poor forecasting skills of spatial features.The multimodel ensemble(MME)mean shows some advantage in capturing the spatiotemporal variations of the AAM modes but does not provide a significant improvement in predicting its temporal features compared to the best individual models in predicting its temporal features.The BCC_CSM1.1M shows promising skill in predicting the two AAM indices associated with two leading AAM modes.The predictability demonstrated in this study is potentially useful for AAM prediction in operational and climate services.

The Subsurface and Surface Indian Ocean Dipoles and Their Association with ENSO in CMIP6 models

This study assesses the reproducibility of 31 historical simulations from 1850 to 2014 in the Coupled Model Intercomparison Project phase 6(CMIP6) for the subsurface(Sub-IOD) and surface Indian Ocean Dipole(IOD) and their association with El Ni?o-Southern Oscillation(ENSO). Most CMIP6 models can reproduce the leading east-west dipole oscillation mode of heat content anomalies in the tropical Indian Ocean(TIO) but largely overestimate the amplitude and the dominant period of the Sub-IOD. Associated with the much steeper west-to-east thermocline tilt of the TIO, the vertical coupling between the Sub-IOD and IOD is overly strong in most CMIP6 models compared to that in the Ocean Reanalysis System 4(ORAS4). Related to this, most models also show a much tighter association of Sub-IOD and IOD events with the canonical ENSO than observations. This explains the more(less) regular Sub-IOD and IOD events in autumn in those models with stronger(weaker) surface-subsurface coupling in TIO. Though all model simulations feature a consistently low bias regarding the percentage of the winter–spring Sub-IOD events co-occurring with a Central Pacific(CP) ENSO, the linkage between a westward-centered CP-ENSO and the Sub-IOD that occurs in winter–spring, independent of the IOD, is well reproduced.

水稻早衰突变体els-R7954的遗传分析和初步定位

为了深入研究水稻早衰机理,找到有效消除和延缓植株早衰的方法,本研究通过350Gy60Co-γ射线辐照水稻浙恢7954干种子,获得1份特异性水稻早衰突变体。观察该突变体生物学性状,发现苗期生长正常,分蘖末期叶片出现早衰现象,灌浆期整个植株枯黄,早衰现象非常明显,将其暂名为elsR7954(early leaf senescence)。遗传分析和基因定位发现,els-R7954受单隐性核基因控制,位于第2染色体SSR标记RM530和RM3774之间,距RM530约5.0c M。为进一步克隆该基因,丰富叶片早衰的分子机制奠定了一定基础,也为研究水稻早衰,最终提高产量和品质提供可能。

肺癌合并肌无力综合征(ELS)8例临床报道

目的：分析肺癌合并肌无力综合征（ELS）的临床特点并进行文献复习。方法：1965～1995年我院收治8例肺癌合并ELS病例，其中SCLC 6例NSCLC 2例；NSCLC Ⅱ期1 例，Ⅲ期1例，SCLC局限期6例。治疗方法中放疗＋化疗6例，单纯化疗1例，单纯放疗1例。结果：随诊率为100％，中位生存9个月。ELS与肿瘤治疗的关系 症状加重1／8，无改善1／8，好转4／8，消失2／8。无1例因ELS死亡。结论：对比ELS与重症肌无力在发病率、临床表现、诊断、治疗上的不同。手术、放疗、化疗可使部分肺癌合并ELS患者的ELS症状缓解。胍类，计明胺，钙类药物对症治疗有效。

基于ELS的项目教学法在网络营销实践教学中的运用

本文分析了网络营销在人才需求和人才培养中的错位,探讨目前的实践教学方式存在的不足,提出构建网络教学平台(ELS),整合各种教学资源,实现立体化教学,并通过教学实例详细讲解了基于ELS的项目教学法如何在网络营销实践教学中实施运用。

基于ELS的高职网络营销实践教学研究

网络营销是一门以实践应用为导向的电子商务专业核心课程,网络营销实践教学内容应紧扣企业需求,着重培养学生的网络营销工具运用能力、平台掌控能力及综合营销技能。企业网络营销实践不断发展变化,网络营销实践教学也应与时俱进。构建网络教学平台(ELS),及时整合与网络营销企业实践相关的各种教学资源,借助虚拟学习社区将课堂实践与课后自学相结合,课上讨论与课下网络互动相结合,构建立体化互动实践教学体系有助于切实提高学生实践能力与学习兴趣。

基于项目教学法的网络营销ELS体系研究

针对网络营销人才需求和人才培养现状,从教学内容、教学方式和评价标准等方面分析网络营销教学现状和存在问题,探讨基于项目教学法的课程教学理念,设计任务驱动型的实践方案,提出构建网络营销ELS(网络教学平台)的模式,从而使网络营销教学更加适应社会对人才的需求。

ELS架构在B2C网上商城系统开发中的应用

在软件开发中,设计一个科学合理的系统架构,不仅能够提高系统的开发效率,更重要的是能够增强系统的维护性和扩展性。将ELS架构应用于B2C网上商城的系统设计中,采用分层设计思想,前台开发引入开源框架EasyUI提供更好的用户体验及交互性,并结合LINQtoSQL这一轻量级ORM解决方案,简化数据查询工作,提高数据处理的功能。

德国可耐福ELS绿色新品问世

本刊记者黎林峰北京讯 在世界知名石膏制品生产厂商——德国可耐福日前举办的ELS新品发布会上获悉，ELS石膏板是定位于高端的一种石膏板产品，具有更轻的自重，更强的抗拉伸能力和荷载力，有防火、隔热、保温、隔音、防潮、抗异变等特点。

受ELSE规则支配的模糊LMS算法

针对FSS-LMS算法推理机制不全和算法运算量大的问题,提出了一种新的受ELSE规则支配的模糊LMS算法.ELSE规则的存在使得在任何输入数据条件下都能成功执行推理机制,而且运算量大为减少.与其它模糊LMS算法相比,该算法所建立的模糊规则更加简单和可靠.实验结果表明,该算法不仅具有更少的计算量,而且比其它的模糊LMS算法以及其它传统的LMS算法具有更好的性能.

相关扰动下连续系统的连续时间ELS辨识的数值实现

回顾了连续相关扰动下随机连续系统的连续时间ＥＬＳ（增广最小二乘）辨识法，并基于数值积分和常微分方程数值解的欧拉（Ｅｕｌｅｒ）法和龙格－库塔法（Ｒｕｎｇｅ－Ｋｕｔａ），给出了连续时间ＥＬＳ的两种数值实现方法和仿真结果．

可耐福ELS专业工程纸面石膏板全新亮相

全球领先的建筑材料生产商德国可耐福集团近曰宣布，由可耐福中国自主研发的新产品—ELS专业工程纸面石膏板全面上市发售。可耐福公司特别研制开发的这款ELS专业工程纸面石膏板，目的就是为了迎合高品质建材的项目工程的需要，在原有普通纸面石膏板的基础上，调整生产工艺和配方，采用特殊生产技术而量身定做的一款专业产品。

Threshold autoregression models for forecasting El Nino events

-In this paper, monthly mean SST data in a large area are used. After the spacial average of the data is carried out and the secular monthly means are substracted, a time series (Jan. 1951-Dec. 1985) of SST anomalies of the cold tongue water area in the eastern tropical Pacific Ocean is obtained. On the basis of the time series, an autoregression model, a self-exciting threshold autoregression model and an open loop autoregression model are developed respectively. The interannual variations are simulated by means of those models. The simulation results show that all the three models have made very good hindcasting for the nine El Nino events since 1951. In order to test the reliability of the open loop threshold model, extrapolated forecast was made for the period of Jan. 1986-Feb. 1987. It can be seen from the forecasting that the model could forecast well the beginning and strengthening stages of the recent El Nino event (1986-1987). Correlation coefficients of the estimations to observations are respectively 0. 84, 0. 88 and 0. 89. It is obvious that all the models work well and the open loop threshold one is the best. So the open loop threshold autoregression model is a useful tool for monitoring the SSTinterannual variation of the cold tongue water area in the Eastern Equatorial Pacific Ocean and for estimating the El Nino strength.

可耐福创新科技新品ELS专业工程纸面石膏板全新亮相

全球领先的建筑材料生产商德国可耐福集团2008年7月28日宣布，由可耐福中国自主研发的新产品——ELS专业工程纸面石膏板全面上市。可耐福公司特别研制开发这款ELS专业工程纸面石膏板的目的是为了迎合高品质建材项目工程的需要，在原有普通纸面石膏板的基础上，调整生产工艺和配方，采用特殊生产技术而量身定做的一款专业产品。

IBM ELS——大数据整合利器

近日,IBM京召开了主题为"大数据危机大整合出击"——IBM ELS大数据策略媒体发布会,阐述ELS在大数据时代的全新策略,旨在帮助企业用户抓住大数据带来的机遇,应对大数据给基础架构带来的压力和挑战。基于主机架构的企业级Linux服务器(Enterprise Linux Server)。

ELS数据整合利器

大数据在带来商业契机的同时,也为企业IT带来新的挑战。企业用户需要从IT基础架构、智能分析软件等方面全方位进行考量,而确保企业大数据应用成功的重要开端就是打造一个适合大数据整合的基础架构。