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PRACTICAL AND PREDICTIVE MODELLINg OF ORE DEPOSITS IN HYDROTHERMAL SYSTEMS

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geotectonica et Metallogenia 2001年第1期25卷 150-151页

作者： ZHAO Chong bin, B. E. Hobbs, H. B. Muhlhaus and A. Ord (CSIRO Division of Exploration and Mining, P. O. Box 437, Nedlands, wa 6009, Australia) CSIRO Division of Exploration and Mining P.O.Box 437NedlandsWA 6009Australia

Over the pastfive years,we have been making efforts to develop a practical and predic- tive tool to exploreforgiantore deposits in hydrothermal systems. Towards this goal,a sig- nificant progress has been made towards a better understanding of the basic physical and chemical processes behind ore body formation and mineralization in hydrothermal systems. On the scientific developmentside,we have developed analytical solutions to answerthe fol- lowing scientific questions:(1) Can thepore- fluid pressure gradientbemaintained atthe val- ue of the lithostaticpressure gradientin the uppercrustof the Earth?and(2 ) Can convective pore- fluid flow take place in the uppercrustof the Earth ifthere is a fluid/mass leakage from the mantle to the upper crustof the Earth?On the modelling developmentside,we have developed numerical methods to model the following problems:(1) convective pore- fluid flow in two- dimensional hydrothermal systems;(2 ) coupled reactive pore- fluid flow and multiple species transport in porous media;(3) precipitation and dissolution of minerals and rock al- teration in the upper crust of the Earth;(4 ) double diffusion driven reactive flow transport in deformable fluid- saturated porous media with particular consideration of temperature- de- pendentchemical reaction rates;(5 ) pore- fluid flow patterns neargeological lenses in hydro- dynamic and hydrothermal systems;(6 ) dissipative structures for nonequilibrium chemical reactions in fluid- saturated porousmedia;(7) convectivepore- fluid flow and the related min- eralization in three- dimensional hydrothermal systems;(8) fluid- rock interaction problems associated with the rock alteration and metamorphic process in fluid- saturated hydrothermal/ sedimentary basins;and (9) various aspects of the fully coupled problem involving material deformation,pore- fluid flow,heattransferand species transport/ chemical reactionsin pore- fluid saturated porous rock masses. The above- mentioned work has significantly e

关键词： rock ORE PRACTICAL AND PREDICTIVE MODELLINg OF ORE DEPOSITS IN HYDROTHERMAL SYSTEMS

超声测量心外膜脂肪厚度与升主动脉扩张的相关性研究

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医学影像学杂志 2015年第3期25卷 437-439页

作者：王翔王志斌孙品王磊青岛大学附属医院心脏超声科青岛266003

目的探讨心外膜脂肪厚度与升主动脉内径是否存在相关性,并分析心外膜脂肪厚度是否为升主动脉扩张的独立影响因素。方法通过经胸超声心动图测量90例患者的升主动脉内径和心外膜脂肪厚度,包括升主动脉内径正常组45例和升主动脉扩张组45例... 详细信息

目的探讨心外膜脂肪厚度与升主动脉内径是否存在相关性,并分析心外膜脂肪厚度是否为升主动脉扩张的独立影响因素。方法通过经胸超声心动图测量90例患者的升主动脉内径和心外膜脂肪厚度,包括升主动脉内径正常组45例和升主动脉扩张组45例,运用统计学方法分析心外膜脂肪厚度升主动脉内径的相关关系。结果升主动脉扩张组心外膜脂肪厚度(5.6±0.9)mm与升主动脉内径正常组(4.5±0.6)mm比较存在显著统计学差异(P<0.01)。心外膜脂肪厚度与升主动脉内径存在强相关性(r=0.512,P<0.01)。多元线性回归分析显示EAT和年龄是升主动脉扩张的独立影响因素。结论心外膜脂肪增厚是升主动脉扩张的独立影响因素,经胸超声心动图测量心外膜脂肪厚度可以作为升主动脉扩张的新的评价指标,为临床治疗提供新的模式。

关键词：心外膜脂肪组织升主动脉扩张超声心动图

The effects of rootstocks on performances of three late-ripening navel orange varieties

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Journal of Integrative Agriculture 2020年第7期19卷 1802-1812页

作者： ZHU Shi-ping HUANg Tao-jiang YU Xin HONg Qi-bin XIANg Jin-song ZENg An-zhong gONg guizhi ZHAO Xiao-chun Citrus Research Institute Southwest University/Chinese Academy of Agricultural SciencesChongqing 400712P.R.China National Citrus Engineering Research Center Chongqing 400712P.R.China Fengie Navel Orange Research Institute Chongqing 404699P.R.China

Selection of rootstock is very important for citrus production. Besides its major role on resistance, the rootstock also can affect fruit production and quality. Currently, the main concerns on selection of rootstock for citrus production are compatibility and resistance, due to less information on the impacts of rootstock to the performance of scion varieties. This study aims to provide information on performances of navel orange varieties on different rootstocks. Three late-ripening navel orange varieties(Citrus sinensis var. Powell, Chislett and Banfield) grafted on seven rootstocks(Swingle citrumelo(C. paradisi× P. trifoliata), Carrizo citrange(C. sinensis×P. trifoliata), X639(C. reticulata×P. trifoliata), MXT(C. sinensis×P. trifoliata), Hongju(C. reticulata), Ziyang Xiangcheng(C. junos) and trifoliate orange(P. trifoliata)) were used as plant materials for comprehensive comparison of the performances on tree growth, fruit yield and quality in 21 scion–stock combinations. Investigation was carried out in these combinations in field nine years after planting. Vigorous growth of all the three late-ripening navel orange varieties was observed on Carrizo citrange with the largest canopy volume at 33.34 m3 and the highest yield at 29.43 kg per tree, but a low yield efficiency at 2.87 kg m–3. On the contrary, those on trifoliate orange had the smallest canopy volume at 10.79 m3 and the lowest fruit yield at 12.51 kg per tree, but the highest yield efficiency at 3.95 kg m–3. Rootstocks did not show significant effects on fruit size, fruit shape index, peel thickness and the edible rate of the fruits, but fruit quality was significantly affected by the rootstocks. Fruits from the trees grafted on trifoliate orange presented the best quality with significantly higher total soluble solids(TSS) content than those on Ziyang Xiangcheng and Hongju, and also the highest ratio of TSS/titratable acidity(TA). The TA content was observed from the fruits on X639 at 0.59 g 100 mL–1.

关键词： rootstock late-ripening navel orange growth vigour yield fruit quality

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子宫颈小细胞癌的临床病理特征和预后分析

临床与实验病理学杂志 2016年第3期32卷 278-282,286页

作者：张军刘璐斌赵喜娃李月红河北医科大学第四医院妇科石家庄050011 河北医科大学第二医院病理科石家庄050000

目的探讨子宫颈小细胞癌的临床病理特征和影响预后的因素。方法回顾性对比分析18例早期子宫颈小细胞癌和40例鳞状细胞癌的临床病理特征,采用Kaplan-Meier法分析子宫颈小细胞癌的3年总生存率及临床病理特征对生存率的影响,采用Cox回归模... 详细信息

目的探讨子宫颈小细胞癌的临床病理特征和影响预后的因素。方法回顾性对比分析18例早期子宫颈小细胞癌和40例鳞状细胞癌的临床病理特征,采用Kaplan-Meier法分析子宫颈小细胞癌的3年总生存率及临床病理特征对生存率的影响,采用Cox回归模型明确独立的预后因素。结果 18例子宫颈小细胞癌中位年龄39岁,40例鳞状细胞癌中位年龄47岁,小细胞癌患者的中位年龄低于鳞状细胞癌(P<0.05)。早期子宫颈小细胞癌的淋巴结转移率为44.4%,脉管瘤栓发生率38.9%,复发率33.3%,均明显高于鳞状细胞癌(P<0.05)。早期子宫颈小细胞癌术后3年生存率为61.1%,鳞状细胞癌为92.5%,早期子宫颈小细胞癌的生存率明显低于鳞状细胞癌(P<0.05)。临床分期、肿块大小、淋巴结转移和脉管瘤栓是影响子宫颈小细胞癌预后的危险因素。Cox回归模型多因素分析表明以上各临床病理特征均不是独立预后因素。结论子宫颈小细胞癌与鳞状细胞癌相比,其早期易发生淋巴结转移和脉管瘤栓,易复发,预后较差。临床分期、肿块大小、淋巴结转移和脉管瘤栓是影响其预后的危险因素,但不是独立预后因素。

关键词：子宫颈肿瘤小细胞癌临床病理特征预后

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弹簧触头设计(Ⅲ)

高压电器 2011年第5期47卷 87-91页

作者：张正周宋新锋独田娃黎斌陕西维柯瑞电气有限责任公司西安710077 西安西电开关电气有限公司西安710077 大全集团扬中212200

为了使弹簧触头结构的设计制造更加标准和规范,笔者在详细分析弹簧触头的特点的基础上,介绍了钴青铜合金弹簧触头的基本结构、电接触特性、导电能力及结构设计要领,结果对钴青铜合金弹簧触头的设计、制造、运行维护有一定的指导意义。

关键词：接触压力接触电阻通流能力材料弹性

固化球磨纳米晶粉末制备块体超细晶Mg-3Al-Zn合金(英文)

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中国有色金属学会会刊：英文版 2011年第S2期21卷 247-251页

作者：房文斌房娃孙宏飞哈尔滨工业大学材料科学与工程学院哈尔滨150001

采用粉末冶金技术制备块体超细晶Mg-3Al-Zn合金。首先采用球磨Mg、Al、Zn混合粉末来制备纳米晶粉末,所得的粉末的平均晶粒尺寸为45nm。随后将球磨好的粉末封入铝包套内,分别在室温和633K温度下,在真空烧结炉内进行真空热压。然后将烧结... 详细信息

采用粉末冶金技术制备块体超细晶Mg-3Al-Zn合金。首先采用球磨Mg、Al、Zn混合粉末来制备纳米晶粉末,所得的粉末的平均晶粒尺寸为45nm。随后将球磨好的粉末封入铝包套内,分别在室温和633K温度下,在真空烧结炉内进行真空热压。然后将烧结后的样品在423K下挤压以进行进一步的致密化处理。结果表明:致密后的冷压样品的晶粒尺寸为180nm,而热压坯的晶粒尺寸为600nm,冷压样品的屈服强度达464MPa;超细晶镁合金的强化机制主要是细晶强化,这主要是由于HCP结构的材料晶粒尺寸对材料的影响更为明显。固化后冷压样品的最终密度为(1.777±0.006)g/cm3,而热压样品的最终密度为(1.800±0.006)g/cm3。

关键词： Mg-3Al-Zn合金超细晶纳米晶粉末粉末冶金

Effects of different numerical algorithms on simulation of chemical dissolution-front instability in fluid-saturated porous rocks

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Journal of Central South University 2018年第8期25卷 1966-1975页

作者： ZHAO Chong-bin Bruce HOBBS Alison ORD Computational geosciences Research Centre Central South UniversityChangsha 410083China School of Earth and Environment The University of Western AustraliaCrawleyWA 6009Australia

Many scientific and engineering problems need to use numerical methods and algorithms to obtain computational simulation results because analytical solutions are seldom available for *** chemical dissolution-front instability problem in fluid-saturated porous rocks is no *** this kind of instability problem has both the conventional(***)and the unconventional(***)solutions,it is necessary to examine the effects of different numerical algorithms,which are used to solve chemical dissolution-front instability problems in fluid-saturated porous *** this goal,two different numerical algorithms associated with the commonly-used finite element method are considered in this *** the first numerical algorithm,the porosity,pore-fluid pressure and acid/solute concentration are selected as basic variables,while in the second numerical algorithm,the porosity,velocity of pore-fluid flow and acid/solute concentration are selected as basic *** particular attention is paid to the effects of these two numerical algorithms on the computational simulation results of unstable chemical dissolution-front propagation in fluid-saturated porous *** related computational simulation results have demonstrated that:1)the first numerical algorithm associated with the porosity-pressure-concentration approach can realistically simulate the evolution processes of unstable chemical dissolution-front propagation in chemical dissolution systems.2)The second numerical algorithm associated with the porosity-velocity-concentration approach fails to simulate the evolution processes of unstable chemical dissolution-front propagation.3)The extra differential operation is the main source to result in the failure of the second numerical algorithm.

关键词： numerical algorithm chemical dissolution front instability computational simulation porous rocks

高层建筑火灾中利用电梯疏散的可行性研究——广岛Motomachi高层公寓安全疏散案例研究

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消防技术与产品信息 2002年第10期15卷 52-55页

作者：王跃琴陈先斌 AISEKIZA wa 武警学院消防工程系日本国家消防科学研究所

1.引言在发生建筑火灾时,居民一般应利用楼梯向室外或避难层疏散,而不是靠电梯疏散.然而,事实上在以往的许多火灾中,有不少人是利用电梯疏散的.

关键词：高层建筑火灾电梯疏散可行性研究广岛Motomachi高层公寓

特异性敲减平滑肌细胞XBP-1对低氧性肺动脉高压小鼠心肺损伤的抑制作用

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山东医药 2024年第26期64卷 47-52页

作者：吴宾杨自更李彩玲梁羽薇宁海虹王嘉玮黄海中国人民解放军新疆军区总医院核医学科乌鲁木齐830000 中国人民解放军新疆军区总医院卫勤训练中心中国人民解放军新疆军区总医院肾内科

目的探讨特异性敲减平滑肌细胞X盒结合蛋白1(XBP-1)对低氧性肺动脉高压(HPH)小鼠心肺损伤的抑制作用。方法取8周龄雄性C57BL/6小鼠60只,随机分为对照组、HPH组、HPH+对照病毒(HPH+shCtrl)组、HPH+敲减XBP-1(HPH+shXBP-1)组。对照组置于... 详细信息

目的探讨特异性敲减平滑肌细胞X盒结合蛋白1(XBP-1)对低氧性肺动脉高压(HPH)小鼠心肺损伤的抑制作用。方法取8周龄雄性C57BL/6小鼠60只,随机分为对照组、HPH组、HPH+对照病毒(HPH+shCtrl)组、HPH+敲减XBP-1(HPH+shXBP-1)组。对照组置于常压常氧环境饲养,HPH组、HPH+shCtrl组、HPH+shXBP-1组置于低压低氧环境进行HPH造模;于造模前3周,HPH+shXBP-1组尾静脉注射平滑肌特异性XBP-1敲减的AAV9病毒,HPH+shCtrl组尾静脉注射对照病毒。将小鼠麻醉后,采用心导管检测右心室收缩压(RVSP);小动物超声仪检测右心室内径(RVID)、右心室前壁厚度(RVAW);取心脏,测算右心室肥厚指数(RVHI);取右心室组织,进行Masson染色,计算胶原容积分数(CVF);眶周取血,采用ELISA法检测血浆内皮素1(ET-1),比色法检测一氧化氮、总一氧化氮合酶(NOS)、诱导型一氧化氮合酶(iNOS);对左肺进行肺泡灌洗,收集肺泡灌洗液,采用ELISA法检测白细胞介素1β(IL-1β)、白细胞介素6(IL-6)、肿瘤坏死因子α(TNF-α);取右肺中叶及后叶肺组织进行HE染色,评估远端肺动脉壁厚度比(WT%)和肺动脉壁面积比(wa%);取右肺前叶肺组织,提取组织总蛋白,采用Western blotting法检测XBP-1蛋白表达。结果HPH组和HPH+shCtrl组RVSP较对照组增加,HPH+shXBP-1组RVSP较HPH组和HPH+shCtrl组降低(P均wa%较对照组增加,HPH+shXBP-1组WT%、wa%较HPH组和HPH+shCtrl组减少(P均<0.05)。与对照组比较,HPH组和HPH+shCtrl组XBP-1蛋白表达升高;与HPH组和HPH+shCtrl组比较,HPH+shXBP-1组XBP-1蛋白表达降低(P均<0.05)。结论特异性敲减平滑肌细胞XBP-1可降低HPH小鼠肺动脉压力,改善小鼠右心功能、心肌纤维化、肺动脉重塑、血管活性物质的动态平衡和肺内炎症水平,XBP-1可能参与了HPH心肺损伤过程。

关键词：低氧性肺动脉高压 X盒结合蛋白1 右心室收缩压心肌纤维化炎症反应内质网应激

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