好研究的
- 与 好研究的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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All of the research results can be widely applied in various aspect of social practice, and provide a good research way and method for combinatorial optimization problem with parameter and inverse symmetric transportation problem, promote the research of network programming design, help to get farther research results, enrich the theory treasury of systems engineering.
这些研究成果可以广泛应用于社会实践的各个方面,并为含参数的组合优化问题的研究、组合优化问题的逆问题的研究提供了一个很好地研究思路和方法,推动了网络规划设计方法的研究工作,有助于取得进一步的研究成果,丰富系统工程理论宝库。
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The effects of carbon source and C/N ratio on denitrification of aerobic denitrifier were investigated in the batch culture under aerobic environment.
利用间歇培养装置研究了好氧条件下丁二酸盐、乙酸盐和苹果酸盐3种不同碳源对好氧反硝化细菌X31脱氮性能的影响,并就不同碳氮比条件下菌株X31的反硝化能力展开了研究。
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Experiment data for determining blood plasma、liquor conductance、thickness、pH demonstrates that testing method of blood coagulation by using of the principle of the liquid electrical resonance is feasible, and the testing method also reflects actual situation of blood coagulation iconically and concretely, achieving to be a better and easier method of studying blood coagulation than optical turbidimetric assay and double magnetic bead method. It offers convenience forthright and low costed measuring equipment in the medical field.
达到了较光学浊度法,双磁路磁珠法和压电石英晶体法更好更简易的研究血凝的方法;在医学上更好的为血凝这一领域提供既便利又简捷而且成本低的测量装置,因此这种测量方法在血凝研究领域具有更加实用的发展前景。
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Above existing forms of Hg determines its activation in the course of acid rain eluviation.
以上试验结果的取得,不仅为试验区土壤中Hg等重金属元素污染的预警试验研究提供了第一手资料,同时又为此类研究提供了可行的思路和方法,达到了研究预期研究目的,很好地完成了研究任务。
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Leishmania promastigotes antigens have good stability and heat-resistant nature. The sensitivity of 901 and 801 antigen were better, so we thought it could be used for serologic epidemiology investigation in XinJiang.
利什曼原虫前鞭毛体抗原有较好的稳定性,耐热性极好;901株、801株抗原的敏感性、特异性较好,可做为新疆血清流行病学调查所用的抗原株;801株的特异性更好,可用于黑热病的特异性抗体的检测及研究。
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The quality variety of whole chicken soft canduring the microwave sterilization was studied and the result found that:the longer the microwave sterilization time,the worse the sensive evaluation;when the microwave sterilization time increased,the temperature of WCSC increased continuously,the fat oxidated more and more quickly,the POV became more and more higher;by the microwave sterilization went on,the water in tissue of WCSC vaporized and out flew,the content of water in WCSC declined;the longer th...
研究了整鸡软罐头在微波杀菌过程中品质的变化,研究发现:微波杀菌时间越长,总体感官品质越差;微波杀菌时间增加,整鸡软罐头温度升高,脂肪氧化速度加快,过氧化值增高;随着微波杀菌的进行,水分不断从整鸡组织中蒸发和流失,0~10min下降速度快,此后减慢;微波杀菌时间越长,杀菌效果越好,10min时微生物被杀灭。研究结果表明:能较好的保持鸡肉软罐头的感官品质,又能实现25℃以下保藏6个月以上的最佳杀菌工艺为:整鸡重量0.8±0.1kg,微波频率2450MHz,功率670W,微波杀菌时间10min。
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The organic facies are researched in the region, the result indicated: coal rock is mainly the better hydrocarbon source rock and has better latent capacity of producing oil and gas. Feature of reservoir was analyzed, the result indicated: from south to north of along qiguang fault, the depth of coal bed augments inch by inch; the coal bed thickness accretes at first and then decreases until steady.
通过对研究区的煤岩有机相特征的研究,得出:煤岩主要为较好烃源岩,具有较好的生油气潜力;分析了煤储层特征,结果表明:在垂直齐广断裂由南往北方向上,煤层埋深逐渐增大;煤层总厚度先增大后减小至稳定。
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According to the energy conservation theory, BOM and CSIM4 were coupled. The BOM has no treatment on transmission solar radiation, which is of great importance when the model is adapted to Arctic Ocean. So the treatment was introduced to BOM. Through numerical test on different lead albedos, it was found that sea ice thickness is not so sensitive to lead albedo, which may be contribute to the lead occupies little ratio within multiyear sea ice pack. The reason of summer over-melt of arctic sea ice is the NCEP reanalysis downward solar radiation being larger than its reality. Then the arctic sea ice climate variability was simulated. Results showed that: simulated ice thickness change is in accord with the submarine investigated mean sea-ice draft changes. Simulated annually maximum ice thickness along the Eurasian continental oceans are closely related to the observed ones. The long-term mean simulated ice motion has the same features of the SSM/I derived ice motion. Sea ice extents in differential sub-regions have same trends comparing to the satellite passive-microwave data derived ones. Simulated ice concentration is closely related to the observed in the Arctic sub-regions. Sea ice flux through the Fram Strait involves ice concentration, motion and thickness. It is a composite criterion for sea ice model evaluation. The simulated ice area and volume export through the strait accord with the satellite derived or statistically reconstructed ones.(5) The simulated ice thickness climate variability and mean sea surface current of the coupled model were analyzed, results showed: the total ice volume in the Arctic Ocean has a significant decreasing trend. The volume variability is of a 10-year timescale oscillation, with two major periods of 12-13a and 18-20a. Mean ice thickness in the arctic sub-seas has different tendencies. It has an increasing trend in the Barents-Kara Sea and Baffin Bay-Labrador Sea, and decreasing in the others. The characteristic time scale of 7-10a wherein the river discharges leads the Fram Strait ice volume export is about the period that river water takes to be conveyed across the Arctic Ocean.(6) Using the simulated ice distribution in the Arctic Ocean and China precipitation, air temperature and SST in tropical key regions, the climate teleconnection were studied. Result showed: When the mean sea ice thickness is large in the central Arctic Ocean and Chukchi-Beaufort Sea , and small in the Barents-Kara Sea and Baffin Bay-Labrador Sea , the precipitation in South China, Tibetan Plateau, and the north part of Northeastern China are always smaller than normal, and v. v. When the mean ice thickness is small in CA, BC, East Siberian Sea and Greenland-Iceland-Norwegian Sea , and large in BL, The air temperature in north-eastern China, the southern of Tibetan Plateau, and Hainan Island, are always lower than normal, and v. v. In addition, when the sea ice is thick in BC and BL, the SST is larger in the middle and eastern Pacific Ocean, and is smaller in the tropical Southeastern Indian Ocean.
由于BOM没有考虑透射太阳辐射的物理过程,研究表明透射太阳辐射对北冰洋的能量收支起到重要作用,因此在BOM模式中引入了对透射太阳辐射的处理;通过对不同水道反照率的数值试验表明海冰厚度对水道反照率的敏感性不强,可能与海冰区水道面积占的比率很小有关;而模式模拟的北极海冰夏季&过度融化&主要源于NCEP再分析资料提供了偏大的太阳短波辐射;对北极海冰的气候变率进行了模拟研究,结果表明:模拟的海冰厚度变化与潜艇探测的海冰吃深度变化具有一致性;模拟和观测的亚欧大陆沿海的年内最大海冰厚度有很好的相关;模拟的海冰移速与长期平均的卫星反演的海冰移速具有相同的速度分布特征;模拟的各个海区海冰面积的变化趋势与卫星反演资料分析的结果基本一致;模拟与观测的主要海洋分区的海冰密集度具有很好的相关:弗瑞姆海峡的海冰体积和面积的输送涉及到海冰密集度、厚度和移动速度,是判断模式模拟能力的一个综合的指标,模式模拟的结果与卫星反演或重建的面积输送、体积输送具有很好的一致性;(5)分析了模拟的北极海冰厚度的气候变率及气候平均表层海流场,结果表明:北极海冰的总体积有显著减少的趋势,北极海冰总体积的变化具有10a际尺度振荡的特点,存在18-20a和12-13a两个主周期;北极海冰的平均厚度在各个海区的变化趋势不同,在巴伦支—喀拉海和巴芬湾—拉布拉多海地区海冰厚度有显著的增加趋势,而其它海区存在减少的趋势;通过对模拟的气候平均表层海流的分析表明,北极河流流量超前弗瑞姆海峡海冰流量7-10年的特征时间尺度与表层海流的气候分布存在着必然联系:(6)利用模拟结果以及中国降水、气温和热带关键区SST资料,讨论了北极各海区海冰平均厚度与中国降水、气温以及热带关键区SST的关系,结果表明:在北极中心海区和楚科奇—波弗特海海冰厚度偏大,在巴伦支—喀拉海以及巴芬湾—拉布拉多海海冰厚度偏小,则中国降水在华南地区、青藏高原和东北北部降水偏少,反之相反;在北极中心海区、东西伯利亚海、楚科奇—波弗特海以及格陵兰海海冰厚度偏小,在巴芬湾—拉布拉多海海冰厚度偏大,则在中国东北地区、高原南部地区和海南岛附近气温偏低,反之相反;另外,北极楚科奇—波弗特海和巴芬湾—拉布拉多海海冰厚度偏大时,在热带中东太平洋海温偏高,而在热带东南印度洋海温偏低。
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The application results from fluorination showed microwave heating could accelerate chemical reactions markedly. The reaction time could be shortened 50% at least than that of conventional heating. The relationship between fluorinating agents\' structure and their activity was studied systematically. In addition, an anhydrous KF with higher activity was prepared by using expansion effect of microwave heating. As we known, solvents were very important to reaction. The comprehensive study showed some less polar aromatic solvents could be used as dipolar solvents. In addition, they had better effect than dipolar solvents in some occasions, such as fluorination of chlorobenzaldehydes and chlorinated diphenyl ketones etc. The primary applications of ionic liquids were also studied which indicated reactions with ionic liquids as solvents were more efficient and simple.
研究表明,微波是一种节能高效的加热方式,在微波作用下的卤素交换氟化反应具有反应速度快、转化率高、选择性好的优点,其反应时间可较常规加热缩短50%以上;同时也系统地研究了氟化剂种类及制备方式对其反应活性的影响,并利用微波加热的膨化作用制备出了一种活性较高的KF,其活性与喷雾干燥KF相差不大;溶剂对反应具有重要的作用,在此系统地研究了强极性非质子溶剂和中等极性非质子溶剂的应用情况,发现一些中等极性的非质子溶剂如硝基芳烃和氯代芳烃类溶剂在氯代苯甲醛类化合物的氟化反应中具有比强极性非质子溶剂更好的使用效果。
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In the process of building and using the mass concrete structures, because of the effect of out-side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance Using nondestructive testing method to test the concrete"s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseasesThis dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic FEM to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, Researched the principles of the first-arriving waves" phase when the cracks" depths are not same, obtained the relation between the inversion point and the cracks" depth, which has the direction sense in the application of projects,The second part of this dissertation is CT , which used the ultrasonic wave running through the tested-substance to get arriving-time of the ultrasonic wave, then inverse the image This dissertation drawed one CT program which can well present the different little cells ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested-substance, CT has the better using foreground..
在混凝土结构的施工及使用过程中,由于受其自身及外界各种因素的影响,常常会产生一些缺陷,对结构物的承载能力和耐久性造成严重影响,采用无损检测技术进行质量检测和健康诊断,这对混凝土结构开展安全、稳定性评估以及病害隐患治理研究具有重要意义。本论文主要针对大体积混凝土结构缺陷的检测方法展开研究工作,重点讨论了超声波法检测混凝土结构裂缝的基本原理和方法及其特点、适用范围,运用动力有限元数值模拟其检测过程,探讨了有裂缝缺陷的混凝土结构在脉冲荷载作用下弹性波的传播及其变化特征,研究了不同裂缝深度下首波相位变化规律,得出了反转临界点与裂缝深度之间的关系,这对实际工程应用具有指导意义。声波CT是一种新的无损检测技术,它是利用声波穿透被检测体获取声波接收时间,来进行计算机反演成像的技术。本文利用直射线法编制了层析成像程序,能较好地呈现被检测物体各微小单元的声波速度分布图像,从而对检测体的质量状况作出诊断评估,具有较好的应用发展前景。
- 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。