研究出
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Based on the fact that the competition in Chinese electric market is oligopolistic, in this paper, we first established a static multi-player oligopoly model and then analyzed the Nash equilibrium and its stability. After that, we established a dynamic multi-player oligopoly model and analyzed its stability.
针对目前我国对电力市场多寡头竞争的研究还不是很深入的情况,在完全信息下,首先建立了多寡头静态模型,找出其纳什均衡解,并进行了稳定性判断;然后建立多寡头动态模型,利用雅可比矩阵的性质判断出系统的稳定性。
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It is based on the present writers' achievements of study and mapping of quantitative lithofacies palaeogeography of the Cambrian and Ordovician in North China, South China and Northwest China.
在对华北地区、华南地区和西北地区寒武纪和奥陶纪定量岩相古地理研究及编图成果的基础上,结合其他地区(主要是蒙兴地区、昆仑秦岭地区、西藏地区、海南岛和台湾地区)的地质资料,编制出了中国晚奥陶世岩相古地理图,并撰写出本文。
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It was reported an cDNA encoding HMG protein was cloned from Pharbitis nil.
HMG蛋白质含有一非常保守的区域HMG-box,为确定裂叶牵牛中是否有其它含HMG-box的蛋白质以及与HMG1的关系,我们根据已知的大豆、裂叶牵牛HMG设计出引物,利用RT-PCR扩增技术、Southern、Northern杂交技术,从裂叶牵牛中克隆出编码HMG蛋白质的另一个cDNA-HMG2,它与HMG-1同源性很高(氨基酸序列同源性〉80%),并对HMG1/2与裂叶牵牛开花功能的关系进行了研究。
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The precent development,including development of new leaching processes and equipment and soon,in bacteria leaching of uranium and gold ores at home and abroad are described in this paper.
阐述了目前国内外微生物浸出技术在铀、金矿石中的最新进展,包括浸出新工艺的研究、浸出设备的研制等,并提出了建
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The reseach on activity changes of SOD, POD and CAT during the somatic embryogenesis of Y35 showed:(1) The activty of SOD was from 52.98 to 133.20 U·g-1·h-1, and remained a rising trend after early single embryo forming, this revealed that SOD might be positively correlated to the differentiation of embryogenic cell and the development of somatic embryo.(2) The activty of POD was from 0.05 to 0.50 U·mg-1·min-1, ascended firstly and desceded later, and was highest in embryogenic callus and lowest in late single embryo , this revealed that POD might be positively correlated to the division and differentiation of proembryo mass, while negatively correlated to the development of PEMⅢto late single embryo.(3) The activty of CAT was from 0.86 to 2.81 U·mg-1·min-1, showed an up-down-up trend, reaching to the highest peak at the time of early embryo formating and decreasing to the lowest at the time of early cotyledonary embryo formating, this revealed that CAT might be positively correlated to the development of early single embryo, while negatively correlated to the formation of middle single embryo and early cotyledonary embryo.The changes in activty of SOD, POD and CAT indicated these three antioxidant enzymes coregulated the differentiation and development of embryogenic cells during Larix somatic embryogenesis.4. Differentially expressed cDNA libraries of the stages of proembryo mass and somatic embryo maturation were successfully constructed by suppression subtractive hybridization.
对Y35体细胞胚胎发生过程中抗氧化酶活性变化的研究显示:(1)SOD活性在52.98~133.20 U·g-1·h-1之间,并在早期单胚形成后一直保持上升的趋势,表明其与胚性细胞的分化及体细胞胚的发育均具呈正相关;(2)POD活性在0.05~0.50 U·mg-1·min-1之间,呈现出先下降后升高的趋势,在胚性愈伤组织中最高,而在后期单胚形成时降至最低,表明其与原胚团的分裂和分化呈正相关,但与PEMⅢ向后期单胚的发育呈负相关;(3)CAT活性在0.86~2.81 U·mg-1·min-1之间,表现出升-降-升的变化趋势,在早期单胚形成时升至最高,在早期子叶胚形成时降至最低,表明其与早期单胚的发育呈正相关,而与中期单胚和早期子叶胚的发育呈负相关。
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The result showed that the influence of temperature and RH on average price and rate of first class of flue-cured tobacco was similar, which showed a trend of parabola curve with temperature or RH increasing. The maximum value of average price occur at 38.0℃ and 87.0%, the maximum value of the rate of first class occur at 37.6℃ and 86.5%. The result also showed that when the temperature or RH was in the range of 37.5℃ to 38.0℃ or 85.0% to 88.0%, psychrometric difference was 1.5~2.0℃, the average price and rate of first class would exceed 10 yuan per kg and 40% respectively.
结果表明:变黄阶段不同温湿度组合对均价及上等烟率的影响基本相似,温度对二者的影响大于相对湿度;均价及上等烟率随温度或相对湿度的升高而均呈迅速上升→缓慢上升→缓慢下降→迅速下降的变化趋势,均价的峰值分别出现在38.0℃和87.0%,上等烟率的峰值分别出现在37.6℃和86.5%;此外研究结果还得出:当温度恒定在37.5℃~ 38.0℃,相对湿度恒定在85.0%~ 88.0%,干湿球差为1.5℃~ 2.0℃时,均价、上等烟率分别可达到10元/kg和40%以上。
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The leaching behaviors of HLW-glass under repositor...
本文采用静态浸出实验研究高放废液玻璃固化体在低氧模拟地质处置条件下的浸出行为。
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In order to do research on pipe flow and pump characteristics of polymer flooding and water flooding rod-pumped well in especially high water-cut stage, rheometric test aimed at production stream from polymer flooding and water flooding rod-pumped well in especially high water-cut stage has been made, and the characteristic of production stream in especially high water-cut stage is confirmed as Newtonian fluid. Experiments using different mediums about pipe flow and pump characteristics is made. Frictional resistance and coefficient of friction resistance of annulus fluid between sucker rod and the pipe flow is calculated under different working conditions. Frictional resistance between plunger and pump barrel under different parameters is calculated based on related theory of pump characteristic and the strained analytical model of oil-well pump. Besides, using the theory of slit flow and hydraulic -clamping pressure, the frictional resistance is calculated, and the error between the result and measured value is no more than 13%.
为研究特高含水期水驱及聚驱抽油机井管流特性与泵特性,本文针对特高含水期水驱及聚驱井采出液进行了流变性试验,确定了特高含水期油井采出液的性质属牛顿流体;利用不同介质,进行管流特性与泵特性试验,得到了不同工况下杆、管环空流的摩擦阻力和摩阻系数;根据泵特性相关理论和抽油泵受力分析模型,计算了不同参数下柱塞与泵筒间的摩擦阻力,并利用缝隙流与液压卡紧力理论对柱塞与泵筒间的摩擦阻力进行了计算,计算结果与实测值误差在13%以内。
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In the last of this dissertation, we give necessary and sufficient conditions for the existence of and the expressions of perpositive semidefinite solutions and bipositive semidefinite solutions to some systems of quaternion matrix equations.
给出了某些四元数矩阵方程组有广亚半正定解,双半正定解的充要条件及其表达公式;研究了矩阵方程组的最小二乘解,极小范数的最小二乘解,在某些约束条件下的最小二乘解和极小范数的最小二乘解,给出了其有这些解的充要条件及其表达公式。
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After an analysis of the distribution characteristics of physical sensate...
以中国东北47个台站的6年逐日气象资料,分析了体感指数气候特征;找出了春季军事基础训练最佳日期、不同强度舒适训练的天数的分布,并作了区划;研究绘制出了东北地区体感指数气候分布图,对克服不良天气影响,减少训练伤,提高训练效率,具有实际意义
- 推荐网络例句
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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.
曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。
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The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.
稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。