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In situ determination of U-Pb ages and Sr-Nd-Hf isotopic constraints on the petrogenesis of the Phalaborwa carbonatite Complex,South Africa

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In situ determination of U-Pb ages and Sr-Nd-Hf isotopic con...

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Roger H.Mitchell j.barry Dawson Gnther Brandl Masaki Yuhara Department of Geology Lakehead UniversityOntarioCanada P7B 5EI Council for Geoscience Limpopo UnitP.O.Box 620Polokwane 0700South Africa Department of Earth System Science Faculty of ScienceFukuoka UniversityJonanFukuoka 814-0180Japan

The Phalaborwa carbonatite Complex,situated in the northeastern part of South Africa,is characterized by copper and zirconium mineralization,and is composed principally of pyroxenites,phoscorite and carbonatite (banded and transgressive).The complex is transected by mafic dykes,and is geographically associated with a satellite syenite and minor granite *** and baddeleyite U-Pb isotopic age determinations using CAMECA 1280 secondary ion mass spectrometry have shown that the outer pegmatitic pyroxenite at the Loolekop pipe was emplaced at 2060±4 Ma,and the main phoscorite at 2062±2 *** ages are identical to those of 2060±2 and 2060±1 Ma for the banded and transgressive carbonatites,*** satellite syenite,which forms plug-like bodies outside of the border of the main complex,and the later mafic dyke have "similar" emplacement ages of 2068±17 and 2062±53 Ma,indicating that these intrusions were apparently near-synchronously *** contrast to other carbonatites,the Phalaborwa Complex is characterized by high initial Sr and low initial Nd and Hf isotopic *** situ isotopic analyses of apatite, calcite,zircon and baddeleyite indicate that the primary magma was derived from an enriched mantle. As the complex was emplaced slightly earlier at～2060 Ma than the nearby mafic phase of the Bushveld Complex (-2055 Ma),it is proposed that the Phalaborwa carbonatite magmatism was triggered by the same mantle plume activity,which partially melted the overlying lithospheric *** contribution also highlights that isotopic studies used to constrain the genesis of ancient igneous complexes should concentrate on minerals with low parent/daughter elemental ratios,such as apatite and calcite for Sr isotopes,and zircon and baddeleyite for Hf isotopes.

关键词： U-Pb ages Zircon and baddeleyite Sr-Nd-Hf isotopes Carbonatite Phalaborwa

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图象处理艺术

Scoping review of cochlear implantation in Susac’s syndrome

2005年

作者： Wendy Crumpler等 (美) barry Haynes

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World journal of Otorhinolaryngology-Head and Neck Surgery 2021年第9期7卷 126-132页

作者： Philip L.Perez Andrew A.McCall barry E.Hirsch Department of Otolaryngology University of PittsburghPittsburghPA15213USA

Objective:Scoping review of published literature to establish clinical characteris tics and audiologic outcomes in patients diagnosed with Susac’s Syndrome(SS)who have undergone cochlear implantation(CI).Data sources:All published studies of CI in SS and contribution of two of our own patients who have not been reported ***:A comprehensive search of MEDLINE(via PubMed)was carried out in March 2020 using the following keywords and related entry terms:Susac's Syndrome,Cochlear ***:Our search identified a total of five case reports of CI in *** the addition of our two patients reported here,we analyzed characteristics and outcomes in seven *** age at implantation was 30 years old(range 19-46),with six women and one man *** time from onset of hearing loss to implantation was 17 months(range three months to four years).Best reported postoperative speech understanding was reported via different metrics,with six of seven patients achieving open set speech scores of 90% or better,and one subject performing at 68%.Vestibular symptoms were present preoperatively in four of seven patients(57%),with vestibular testing reported in two patients,and showing vestibulopathy in one *** complications were reported following cochlear ***:Cochlear implantation is a viable option for hearing rehabilitation in patients with SS,with levels of attainment of open set speech comparable to other populations of CI candidates.

关键词： Susac's syndrome Cochlear implantation Scoping review

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稠油的成因、预测和深水开采——AAPG和AMGP稠油研讨会的回顾和技术摘要

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海洋地质动态 2009年第3期25卷 28-31页

作者： barry jay Katz javier j. Meneses-Rocha Ulises Herna＇ndez-Romano 刘春（编译）刘锐（校）雪佛龙公司 PEMEX勘探与生产公司不详

美国石油地质学家学会(AAPG)联合墨西哥石油地质协会(AMGF)于2006年10月8-10日在Veracruz、Mexica召开了题为'稠油:成因、预测和深水开采'的海德伯研讨会.来自世界各地的90位地质科学家和工程师参加了会议.会议开始建立一个大致的工作框... 详细信息

美国石油地质学家学会(AAPG)联合墨西哥石油地质协会(AMGF)于2006年10月8-10日在Veracruz、Mexica召开了题为'稠油:成因、预测和深水开采'的海德伯研讨会.来自世界各地的90位地质科学家和工程师参加了会议.会议开始建立一个大致的工作框架.Henry Pettingill陈述了由不同作者所确定的'深水'定义,变化范围大致为300～500m,超深水被确定为1500～2000 m.他表示在1995年到2003年间,深水油气位含量以每年相当于9×109桶油气当量(BBOE)的速度增长,发现的资源总数为101(BBOE),其中大约19%的源岩基底被确定为超深水沉积.

关键词：稠油 AAPG 成因开采深水预测石油地质学家

奶牛科学进展的综述：牛的乳房炎：奶成份的变化与各有关诊断性检验

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广东畜牧兽医科技 1986年第3期 58-62页

作者： barry j.KITCHEN 郭名荣

奶成份的变化下列各节的摘要是乳房炎影响奶成分的

关键词：乳房炎乳房疾病体细胞计数体细胞数诊断性

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斗战机器人

汽车测试报告 2016年第2期 24-27页

作者： Pat Devereux barry j Holmes Tony

历史上遇尔会出现科幻小说变成科学事实的时刻，飞机和互联网就是例子，两者同样超乎想象,最少在发明它们的人走进办公室宣布＂你知道你所说的概念断不可能实现吗？嘿嘿，看看这个吧……＂之前，成事机会都好像十分渺茫。

关键词：机器人科学事实科幻小说互联网办公室

PHREEQC在地下水溶质反应运移模拟中的应用

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水文地质工程地质 2004年第2期31卷 20-24页

作者：毛晓敏刘翔 barry D A 英国爱丁堡大学土木与环境研究所清华大学环境科学与工程系北京100084

由于地下水污染的加剧,对地下水中污染物运移规律的研究日益受到重视。地下水中的溶质在运移过程中伴随着溶质组分间的化学反应,因此需要建立地下水溶质运移与化学反应的耦合模型。PHREEQC是近年来发展起来的描述局部平衡反应、动态生... 详细信息

由于地下水污染的加剧,对地下水中污染物运移规律的研究日益受到重视。地下水中的溶质在运移过程中伴随着溶质组分间的化学反应,因此需要建立地下水溶质运移与化学反应的耦合模型。PHREEQC是近年来发展起来的描述局部平衡反应、动态生物化学反应的水文地球化学模拟软件。本文利用该模拟软件对一维地下水流动过程中溶质离子交换反应和动态氧化还原反应进行了模拟。结果表明,PHREEQC能够成功地进行溶质运移情况下复杂水化学反应模拟,但对于复杂地下水流和溶质运动的情况,有必要耦合其它的地下水流动和溶质运移软件来共同完成。

关键词：地下水污染化学反应耦合模型溶质离子交换动态氧化还原

Effect of herpesvirus infection on pancreatic duct cell secretion

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World journal of Gastroenterology 2005年第38期11卷 5997-6002页

作者： Péter Hegyi Balázs rdg Zoltán Rakonczai jr Tamás Takács jános Lonovics Annamária Szabolcs Réka Sári András Tóth julius G Papp András Varró Mária K Kovács Mike A Gray barry E Argent Zsolt Boldogki First Department of Medicine Department of Biology Division of Cardiovascular Pharmacology School of Cell and Molecular Biosciences

AIM： To examine the effect of acute infection caused by herpesvirus （pseudorabies virus, PRV） on pancreatic ductal secretion. METHODS： The virulent Ba-DupGreen （BDG） and non- virulent Ka-RREp01acgfp （KEG） genetically modified strains of PRV were used in this study and both of them contain the gene for green fluorescent protein （GFP）. Small intra/ interlobular ducts were infected with BDG virus （10^7 PFU/mL for 6 h） or with KEG virus （10^10 PFU/mL for 6 h）, while non-infected ducts were incubated only with the culture media. The ducts were then cultured for a further 18 h. The rate of HCO3 secretion [base efflux -λ（B）] was determined from the buffering capacity of the cells and the initial rate of intracellular acidification （1） after sudden blockage of basolateral base loaders with dihydro-4,4,- diisothiocyanatostilbene-2,2,-disulfonic acid （500 μmol/L） and amiloride （200 μmol/L）, and （2） after alkali loading the ducts by exposure to NH4Cl. All the experiments were performed in HCO3-buffered Ringer solution at 37 ℃ （n = 5 ducts for each experimental condition）. Viral structural proteins were visualized by immunohistochemistry. Virallyencoded GFP and immunofluorescence signals were recorded by a confocal laser scanning microscope.RESULTS： The BDG virus infected the majority of accessible cells of the duct as judged by the appearance of GFP and viral anUgens in the ductal cells. KEG virus caused a similarly high efficiency of infection. After blockage of basolateral base loaders, BDG infection significantly elevated -λB-） 24 h after the infection, compared to the non-infected group. However, KEG infection did not modify -λB-）. After alkali loading the ducts, -λB-） was significantly elevated in the BDG group compared to the control group 24 h after the infection. As we found with the inhibitor stop method, no change was observed in the group KEG compared to the non-infected group. CONCLUSION： Incubation with the BDG or KEG strains of PRV results in an effective i

关键词： Pancreas Hypersecretion Ductal cells Infection Pseudorabies virus

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基于神经网络的机器人手臂模型辨识

机床与液压 2001年第3期29卷 27-28页

作者：于金 U.K.barry Lennox 沈阳航空工业学院 110034 The University of Manchester

介绍了神经网络动态建模方法 ,以非线性两关节机器人手臂为例 ,用两个并联的BP网络对其进行了辨识研究。仿真结果表明。

关键词：机器人手臂神经网络反向传播算法模型辨识