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Studies on sequence changes in the early genomes of interspecific F_1 hybrid and amphidiploid in CucumisIn the present study,extensive genomic changes were detected in newly obtained allotetraploid of Cucumis,namely Cucumis hytivus Chen and Kirkbride,by AFLP analysis using 12 pairs of EcoR-I/Mse-I primers.
甜瓜属远缘杂种F_1及人工异源双二倍体早期基因组序列变化研究利用12对Eco RI/Mse I选择性引物,对甜瓜属人工异源双二倍体C.hytivus及其二倍体父母本进行AFLP分析,结果发现多倍体基因组在形成早期发生了广泛的序列变化。
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Taking the plate tectonics as leading theories, combining outcrop, seismic techniques, drilling and logging datum, inter-verifing manifold researching methods, The paper has amply researched the region. discussed the coupling relation of basin-mountain and the geodynamics system; analyzed geologic tectonic characteristics of the basin; confirmed superposed alteration in Mesozoic of the basin; recompartmentalized tectonic units of the researching region and the basin; studied the tectonic evolution of the basin since Mesozoic; ascertained four large tectonic layers and five tectonic evolution process stages in different ways of formation and tectonic alteration; established different tectonic stages、compages、models and sedimentary filled processes, based on the organic geochemistry and oil-gas geologic characteristics in middle Cenozoic of the basin, the conclusions have been summarized in the paper, such as:The primary source rock in lower Permian and subordinate source rock in upper Triassic are developed in the region with better quality, and secondary hydrocarbon is possible; The bearing system which is comparted by three large tectonic layers and two unconformity surfaces formed in Palaeozoic、upper Palaeozoic to Triassic and Cenozoic developing in the region, compounded with reservoirs of different lithology is developed in the region, while the property of tectonic fracture reservoir is better; Based on the analyzing petroleum accumulation elements and preserving conditions, the deep depressing belt in the north of Luoyang depression、Shiling-Yiyang folded fault belt in Yiyang depression and wide anticline belt in Yichuan depression are advantageous petroliferous region, Zhaizhen anticline in Luoyang depression and Shimen wide anticline on footwall of overthrust in Yichuan depression are optimum tectonic traps.
本文以板块构造理论为指导思想,采用露头区野外地质与盆地地震、钻井、测井资料密切结合,多种测试方法互检的研究方法,探讨了盆山耦合关系及其所控制的地球动力学系统;分析了研究区域和盆地地质结构构造特征,确定了中生代盆地的叠合改造性质,并重新划分区域构造单元和盆地构造单元,深入研究了洛阳—伊川盆地自中生代以来的构造演化;确定了成盆作用和构造改造作用的四大构造层和五期不同方式、方向的构造演化过程;建立了不同构造阶段的构造组合和样式及与构造相关的沉积充填过程;在此基础上通过多种有机地球化学指标,研究盆地中新生代油气地质特征,认为本区发育下二叠统区域主力烃源岩、上三叠统区域非主力烃源岩,两套烃源岩质量均较好,并具备二次生烃条件;认为本区发育古生界、上古生界—三叠系和新生界三大构造层、两个不整合界面分隔、不同岩性储集层叠置组合和构造裂隙型储集层的复式储集体系,其中构造裂隙型储集层储集性能较好;依据油气成藏条件和保存条件分析,认为洛阳凹陷北部深凹带、宜阳凹陷内石陵—宜阳褶断带以及伊川凹陷伊川宽阔背斜带为较有利含油气区,有利的构造圈闭是洛阳凹陷翟镇背斜和伊川凹陷的石门逆冲断层下盘的宽缓背斜
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On the basis of the study on the petrology, Trace element, and isotopic geochemistry, the primary magma of volcanic rocks can be divided into two series according to their originated rocks and degree of partial melting. One is the basanite-alkaline basalt-Olivine tholeiite magma series, which are generated by partial melting from spinel Iherzolite; the other is nephelinite magma-alkaline picritic basalt magma, which are generated by partial melting of the garnet Iherzolite.
岩石化学、微量元素、同位素地球化学证据都表明,华北、华南地区的火山岩根据源岩和局部熔融程度的不同,可以分为两个原生岩浆系列:一个是源岩为尖晶石二辉橄榄岩,随着局部熔融程度的增加,形成的碧玄岩岩浆-碱性玄武岩岩浆-橄榄拉斑玄武岩岩浆;另一个是源岩为石榴石二辉橄榄岩,随着局部熔融程度的增加形成的霞石岩岩浆-碱性苦橄玄武岩系列。
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In forepart and middle of K1qn23 the lake shore line popple on main body of west slope.During the power source supply period, delta developed quickly and after source died down,lake bay became developing. In the late of K1qn23 the lake shore line popple on the east of westslope and source died down, small delta developed.
青二三段沉积早中期,湖岸线在西部斜坡主体波动,在物源供应较强时期,三角洲较为发育,在物源供应较弱时期湖湾相对发育;青二三段沉积晚期,湖岸线在西部斜坡东侧波动,物源供应相对较弱,沉积相以小面积的三角洲相为主。
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The organic geochemistry characteristics of source rocks and oil sands in Well Hu 41,Well Hu 83 in Huzhuangji area are studied,by which a preliminary judgement is made that the type of kerogen of Es_3 source rock is a mixed type with high maturity,and its depositional environment is saltness reduction one.
通过对胡状集地区胡41井、胡83井等烃源岩和油砂进行有机地球化学特征研究,可以初步判定胡状集地区沙三段烃源岩干酪根类型为混合型,成熟度较高,沉积环境为咸化的还原环境;沙三段原油属于成熟原油,沙二段原油属于低熟原油;沙三段原油为自生自储原油,沙二段原油与沙三段原油不同源。
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Rhodococcus erythropolis TJQ can use both organic and inorganic sulfur as vegetal sulfide. The strain growing with sodium sulfate can effectively desulfurize benzothiophene DBT and its derivatives 4,6-dimethyldibenzothiophene (4, 6-DMDBT).
实验结果表明,该菌既可以利用有机硫源又可以利用廉价的无机硫源作为生长硫源,以硫酸钠作为硫源培养的菌株可专一性脱除苯并噻吩和DBT及其甲基衍生物4,6-二甲基二苯并噻吩(4,6-DMDBT)中的硫。
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The biomarkers such as the n-Alkanes, the isoprenoids, the terpane, and cholestane were detected through GC-MS analysis. Based on the study of the biomarkers, the biological evolution during Permian and Triassic can be divided as three stages, namely, the mixing source stage of low biota such as thallose and advanced plant in late Permian (below bed 63), the stage of low biota such as thallose in the boundary transitional layer (bed 63-69) and the mixing source stage of advanced plant and low biota such as thallose in early Triassic (above bed 69). What's more, the second stage near the boundary transitional layer can be subdivided into 4 stages. The stages of biota evolution is close related with sedimentary environment changing and the boundary transitional layer.
利用GC—MS分析技术,在陆相地层中检测出正构烷烃、类异戊二烯烷烃、萜烷和甾烷类生物标志化合物并根据生物标志化合物和特征值研究,将二叠系—三叠系生物演化划分为三个大的阶段,即晚二叠世的菌藻类低等生物与高等植物混源阶段(63层以下),界线异常层的菌藻类低等生物阶段(63-69层)和早三叠世高等植物与菌藻类低等生物混源阶段(69层以上),界线附近异常层的第二阶段又进一步细分为4个次一级阶段,生物演化阶段与沉积环境变化及界线异常层具有非常密切关系。
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LREE depleted spinel lherzolite xenoliths are the 2%~15% partial melting residues of spinel lherzolite with 2 times REE concentration of chondrite. LREE enriched spinel lherzolite xenoliths are the prodiuct that 1% partial melting of garnet lherzolite derived melts mix in ratio of 2% with most LREE depleted spinel lherzolite.
轻稀土亏损的尖晶石二辉橄榄岩包体,是2倍球粒陨石稀土元素丰度的尖晶石二辉橄榄岩地幔经过2%~15%部分熔融后的残留体;而富集型尖晶石二辉橄榄岩包体可能为,来自深部石榴石二辉橄榄岩源区1%熔融形成的熔体以约2%的比例隐交代轻稀土元素最亏损的包体代表的幔源区后形成的。
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The paper adopts some methods such as gas composition, carbon isotope, systematical analyzing and testing of reservoir bitumen biomarker from high evolutional natural gas and quantitative calculation of mixed gas, illustrates that natural gas from the section Ⅱ of Jialingjiang formation is mainly attributed to sapropel type organic matter gas of Permian, comes from carbonatite hydrocarbon rocks Permian which most of them are overmature, its main gas source has nothing to do with carbonatite hydrocarbon rocks of Jialingjiang formation themselves, presents in geochemistry characteristics of oil type cracked gas.
摘要通过对川中-川南过渡带西部的磨溪-潼南地区嘉二段天然气组成、碳同位素组成、高演化天然气储层沥青生物标志化合物的系统分析测试和混合成因气的定量估算,阐明了该区嘉二段天然气主要属于二叠系腐泥型有机质成因气,来源于二叠系过成熟为主的碳酸盐岩烃源,主力气源与嘉陵江组自身的碳酸盐岩烃源无关,并具有油型裂解气的地球化学特征。
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Voltage Source and Current Source, Thevenin Theory, Trouble Shooting, Characteristic Curve of Diode, Diode Models, Rectifier Circuits, Input Filtering Capacitor, Voltage Multiplier Circuits, Limiter and Clipper Circuits, DC Clampers and Peak-to-peak Detectors, Zener Diode, Zener Diode Rectifier, Photoelectric Devices, Collector-Emitter Junction, Transistor Characteristics of common-emitter, Base Bias, LED Dirver, Establishing a Stable Q-point, PNP Transistor Biasing, Transistor Biasing, Coupling and By-Pass Capacitors, AC Emitter Resistance, Common-Emitter Amplifier, Other Common-Emitter Amplifiers, Cascaded Common-Emitter Amplifiers, AC Load Line, Emitter Follower, Class B Push-pull Amplifiers, JFET Characteristic Curve, JFET Biasing, JFET Amplifier, VMOS Circuit, Differential Amplifier, Operational Amplifier, Non-inverting Feedback, Negative Feedback.
电子学实验( S0704)(1,1)/应用电子学实验( S0472)(1,1)电压源和电流源、戴维宁定理、故障排除、二极体特性曲线、二极体近似模型、整流电路、电容-输入型滤波器、倍压电路、限制器电路和峰值检测电路、直流定位器与峰对峰检测器、齐纳二极体、齐纳二极体整流器、光电元件、集射极接面、集极特性曲线、基极偏压、LED驱动器、建立一个稳定的工作点 Q 、 PNP 电晶体偏压、电晶体偏压、耦合及旁路电容、交流射极电阻、共射极放大器、其他 CE 放大器、串接共射极放大器、交流负载线、射极随耦器、 B 类推挽式放大器、 JFET 特性曲线、 JFET 偏压、 JFET 放大器、 VMOS 电路、差动放大器、运算放大器、非反向电压回授、负回授。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。