研究出
- 与 研究出 相关的网络例句 [注:此内容来源于网络,仅供参考]
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At the super-low permeable reservior sandstone of Fu and Yang in Daqing Oilfield, many pore throats exist a lot in the types of compacted and restored flakes and curved lamellas while the pore volume of micropore and the thin, compacted and shrunken throat that contribute little to flow take large scale in the total pore space. Thereof high filtrational resistance is caused by much trouble including high content of reservoir shale, serious sensibility to pressure at waterflooding, remarkable effects of undersaturation and water blocks in micropore. A method with laboratory experiment, theoretical confirmation and field application included was adopted to analyze the non-linear flow characteristics, to reveal the deep mechanism of pinhole enveloping macropore and to provide a new technology of improving the development effect. The outcomes aquired are as follows: Multiple cores with different low and super-low permeability were selected to perform seepage experiments by gas, water and oil. Three fields of flow were observed in the reservoir at different low and super-low core permeability. They are pseudo- elastic flow, transition flow and plastic creep flow. So the concept that there was no correlation of rocky absolute permeability with fluid properties that pasted itself was broken up. Two-phase seepage of water displacing oil in uniform super-low permeability shows that the two-phase seepage zone is narrow.
针对大庆油田扶、杨特低渗透油层砂岩孔隙喉道的大小和形态以压实再生型片状、弯片状喉道分布较广,压实、缩小型细喉道型,微孔不可流动的孔隙体积所占总孔隙体积的比例较大的特点;及储层泥质含量高,注水开发中压力敏感性强、微孔隙欠饱和及水锁效应显著,导致流体渗流阻力增大的问题,本文采用室内实验、理论推证和矿场应用相结合的方法,研究、分析了流体非线性渗流特征,更深刻地揭示出小孔包围大孔的机理及产生原因,并提供了改善开发效果的新的技术方法,取得如下成果:选择不同渗透率的低渗透、特低渗透岩心,进行了气、水和油单相渗流实验,揭示出当岩心渗透率不同时,油层内的流体呈现出拟弹性流变、过渡流变、塑性蠕变三种流变区,从而打破了岩心的绝对渗透率与通过岩心流体性质无关的观点;同类特低渗透岩心的水驱油两相渗流实验表明,两相渗流区较窄。
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An experimental research on recovering gold from lead concentrate with cyaniding process was carried out.
为了提高经济效益,对从铅精矿中氰化浸出回收金进行了研究,其盈亏平衡点是金的浸出率≥50.00%,铅浸出率≤3.00%。
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Finally through to the GMRY crisis management present situation analysis and the company interior crisis cause based on the strategic stratification plane and the operation stratification plane two stratification planes, launches the strategic stratification plane and the operation stratification plane research from the management study basic strategy management process frame and the balance idea branch customs station frame to the GMRY enterprise crisis cause, and the method which using the subjective tax power and the objective tax power, qualitative and the quota unifies determined the target the weight, unifies using the level analytic method and the fuzzy synthesis judgment law then constructs the GMRY crisis to forewarn the distinction model, and forewarns the analysis system through the enterprise crisis, surveys crisis condition which GMRY at present locates, And proposed the crisis forewarns the solution and the implementation enterprise crisis early warning system measure and the suggestion.
最后通过对GMRY公司危机管理现状的分析及公司内部危机诱因基于战略层面及运营层面的两个层面,从管理学基本的战略管理过程框架和平衡计分卡框架对GMRY公司企业危机诱因展开战略层面与运营层面的研究,并运用主观赋权和客观赋权、定性与定量相结合的方法确定出指标的权重,运用层次分析法及模糊综合评判法相结合进而构建出GMRY公司危机预警判别模型,并通过企业危机预警分析系统,测算出GMRY公司目前所处的危机状态,并提出危机预警解决方案和实施企业危机预警系统的措施和建议。
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The range of Mw values of amylose from different types of rice starch is from 3.29×105~2.75×106. There are no significant differences in the molecular weight distribution, Mw and RMS of the amylose leaches out at the temperature between the onset pasting temperature and 90℃.
研究表明,90℃以上高温不利于用浸出法从直链淀粉含量低的大米淀粉中分离直链淀粉,当温度低于90℃而高于糊化温度时,各个温度下均可用浸出法分离出直链淀粉,得到的直链淀粉具有十分相似的分子量分布、重均分子量和分子旋转半径。
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And the solution indicates that Broadcasting Industry has the much highest procreativeefficiency than Three Branch Industries, and the gap expands sequentially. There are different spatial congregating characteristics of each scale.
投入产出分析是产业经济学的重要研究内容,第7章运用数据包络分析的BC~2模型对中国30个省域1997~2004年的广电产业效率进行了评价分析,计算出每一年的生产有效点、绘出生产前沿面,并计算出各年和累计的过剩投入率。
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By employing the Jordan-Wigner transformation and a modified mean field method, we are able to determine its ground-state quantum phase diagram approximately. The chapter IV is the main part of this Thesis. It contains the main innovations in our work. We propose and study in detail a S=1 Ising chain with the interplay of single-ion anisotropy and dimerization. The main results and innovations are the following: We show that the total number of the zero-component of spins at each site is a conserved quantity. This quantity, which may intuitively called as hole's quantum number, is hidden in the system. We show further that the hole's number in the ground-state is zero; By using the Jordan-Wigner transformation, we map this model onto a series of subsystems described by the spin 1/2 dimerized transverse Ising model. We solve the subsystems exactly, by presenting the exact wave functions and spectra;We show that this system exhibits a series of quantum phase transitions by varying the dimerization strength. We determine the quantum critical points exactly. We also show that the criticality is the same as that of the uniform S = 1/2 transverse Ising chain.
第四章是本文的重点及主要创新内容,我们具体研究了自旋为1的在横向单离子晶格场中的一维二聚化Ising链,我们得到的主要结果和创新之处是:(1)证明了这一模型具有一种隐藏的对称性,即自旋第三分量为零的格点数目是一个守恒量,并证明基态出现在空穴数目为零的子空间中;(2)利用Jordan-Wigner 变换将此模型变换到一系列自旋为1/2的横磁场中的二聚化Ising 模型,并给出了相应严格的波函数及能谱;(3)我们发现系统的基态随着二聚化强度的变化将呈现出一系列量子相变,我们得到了量子临界点的精确位置,并证明其临界性质与自旋为1/2的横磁场中的均匀Ising 链中的临界行为属于同一普适类。
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To meet with the DC feeder cable without ground wiring, different DC current method was proposed to solve the problem of DC leakage curren on-line detection of the cable. The paper still studied in primary the feasibility of low frequency superposition method to detect the DC feeder cable. It not only explained the working theory of the system, but also presented some problems to be solved.
针对直流馈出电缆无接地线,提出采用差量直流电流法解决了电缆直流泄漏电流的在线检测问题,并初步研究了低频叠加法监测直流馈出电缆的可行性,给出了工作原理及还需解决的问题。
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For the DC leakage current could not effectively evaluate the state of DC feeder cable insulation layer with cut or crack, the discharge theory and its characteristic were studied in the DC feeder cable under special condition, and the DC discharge was proposed to detect the insulation cut or crack fault in DC feeder cable.
针对泄漏电流检测直流馈出电缆绝缘破损故障效果不佳的问题,研究了直流馈出电缆破损状态下的放电机理及特征,提出采用直流放电法检测直流馈出电缆破损故障。
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The results show that in the prophase time of leaching process, the leaching rate, total iron concentration and bacteria cells increase rather quicker than those in the anaphase time of leaching, and the biological factors affect the leaching process when in the prophase time.
动力学研究表明,在浸出早期,氧化浸出速率、溶液中总铁浓度以及溶液中的细菌数量增长较快,而在浸出后期则增长较慢。
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The mainly conclusions in our research are as flowing: tungsten trioxide powders with 100 nm primary particle are obtained by spray drying,calcination and wet milling process, and an average size of quadric particle composed of agglomerated particles is 0.64 μm; tungtsen powders with 39 nm grain size and 60 -100 nm primary particle are produced directly from previous tungsten trioxide using one step reduction in hydrogen at 700℃, and an average size of quadric particle of tungsten powder is 2.91 μm; tungsten trioxide and copper tungstate compound powders with 100 nm - 200 nm primary particle are produced using ammonia metatungsten and copper nitrate as raw materials by spray drying,calcination and wet milling process;the compound powders are transformed completely into tungsten and copper compound powders by reduction in hydrogen at 700℃,in which tungsten grain size is 59 nm and copper grain size is 51 nm; primary particle size of compound powders is 80 - 120 nm,and an average size of agglomerated quadric particle is 1.86 μm; tungsten nitride powders with 35 nm grain size are prepared from tungsten trioxide powders by nitrogen treatment thoroughly in pure ammonia at 650℃, and an average size of agglomerated quadric particle is 0.64 μm in normal temperature.
研究结果表明:采用喷雾干燥—焙烧—球磨工艺可以制备出粒度约为100nm的WO_3粉体,它们在团聚后形成的二次颗粒平均粒度为0.64μm;采用一步直接氢还原方法可在700℃下从上述WO_3粉体制备出晶粒尺寸为39nm的、一次颗粒粒度为60-100nm的W粉体,其二次颗粒的平均粒度为2.91μm;以偏钨酸铵、硝酸铜为原料,采用喷雾干燥—焙烧—球磨工艺可制备出一次粒度为100-200nm的WO_3和CuWO_4混合粉体;采用氢还原工艺可在700℃下将这种粉体完全转变为W、Cu复合粉体,其中W的平均晶粒粒尺寸为59nm,Cu的平均晶粒尺寸为51nm;复合粉体的一次颗粒尺寸为80-120nm,在常温下团聚后形成的二次平均粒度为1.86μm;采用纯氨氮化工艺可以在650℃下由WO_3粉体制得WN,其晶粒尺度为35nm,在常温下团聚后的二次平均粒度为6.4μm。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。