系统学
- 与 系统学 相关的网络例句 [注:此内容来源于网络,仅供参考]
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PL could maintain cellular membrane integrity,induce the oxidative damage to biomembrane by free radicle and improve antioxygen ability and ATPase activity of larval fish.5 Effect of phospholipid supplementation in formulated microdiets on foregut and liver histological changes of Pelteobagrus fulvidraco larvaePurpose:This study was undertaken to determine the effect of commercial PL supplementation in formulated microdiets on foregut and liver histological changes of Pelteobagrus fulvidraco larvae,which can further investigated the mechanism of the growth-promoting effect of PL with the study of histology and digestive physicalogy.
磷脂能够维持黄颡鱼仔稚鱼细胞膜的完整性,降低自由基对生物膜的过氧化损伤,提高机体抗氧化系统的活力和ATP酶活性。5饲料中不同磷脂添加水平对黄颡鱼仔稚鱼前肠和肝脏组织学的影响目的:研究在实际配方的人工微粒饲料中添加商品大豆磷脂对黄颡鱼仔稚鱼消化肠道肝脏器官发育及脂肪消化吸收的影响,进一步从组织学消化生理角度揭示磷脂对仔稚鱼促生长作用机理。
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The dissertation deals with the gemology and relative spectroscopy of these rubies by using the conventional gemological methods and the modern instruments of EMPA, scanning electron microscope, electron paramagnetic resonance, infrared Fourier transform spectroscope and laser Raman spectrometer.
本文采用常规的宝石学研究方法以及电子探针、扫描电子显微镜、电子顺磁共振、傅立叶变换红外光谱仪、拉曼光谱仪、紫外可见光分光光度计等现代测试仪器,对元江红宝石的矿物宝石学特征进行了系统的研究,并结合晶体场理论分析元江红宝石的致色机理。
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This study simulates the dazzling light and the human visual system for light adapting with multiple-pass rendering technique.
本论文主要的研究方向为以著色技术中顶点著色、像素著色与绘图技术中高动态范围影像(High Dynamic Range Image, HDRI)、色调再生等相关图学的研究为基础,并配合人类视觉系统对光的适应性,在这些技术的应用与图学演算法中,进行分析与探讨,以达到模拟瞳孔适光性之研究。
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In this paper, as a typical lewis acid, anhydrous aluminum (AlCl_3) was used as the catalyst to get PP/PS blends compatibilized by in-situ Fridel-Crafts alkylation. The effects on PP and PS components of AlCl_3 were investigated first, mainly by rheology, including steady rheology method and dynamic rheology method. Then the in-situ reactions in PP/PS alloys under different conditions were executed and studied in detail by selective Soxhlet solvent extraction. And at the same time, the evolutions of phase structures of PP/PS and the resulted PP/PS/AlCl_3 alloys were investigated by SEM and SALS. The steady and dynamic rheological behaviors of in-situ compatibilized PP/PS alloys were obtained systematically.
本文选用典型路易斯酸无水氯化铝(AlCl_3)作为催化剂,利用烷基化反应机理,对PP/PS合金直接进行原位催化反应增容,以流变学方法(包括静态流变和动态流变学方法)为主,详细探讨无水AlCl_3对PP/PS合金体系中PP和PS两组分的影响,并在此基础上进一步系统研究无水AlCl_3原位催化增容PP/PS合金的相结构演变及增容反应特征,然后对不同原位催化增容条件下获得增容合金材料的流变行为特征作了深入探讨。
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It is a forum for publication of innovative research on eukaryotic organisms. Articles focus on the analysis of cellular and developmental systems using classical genetics, molecular genetics, genomics, functional genomics - and combinations thereof - in yeasts, fungi, algae, protists and cell organelles.
该刊主要发表有关真核生物的创新性研究的文章,文章内容主要集中在用经典遗传学、分子遗传学、基因组学及功能基因组学等用于酵母、真菌、藻类、原生生物和细胞器的方法对细胞和发育系统的研究。
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On the basis of the works of our predecessors. I. try to make a thorough and systematic study on the Chinese Iris by means of pollen morphology、cytotaxonomy、esterases Isozyme and numerical taxonomy and combining the morpholoyical characteristics and plant geography. The experimental results are summarized as follow
基于上述原因,本文在前人工作的基础上,试图利用花粉学、细胞分类学、同工酶学及数量分类学等手段,并结合形态学特征及地理分布特点,对中国鸢尾属进行了较为系统的研究,获得以下几方面的结果
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In the dissertation, a new stabilization method, equal-density method was adopted to prepare modified asphalts with storage stability at high temperature. In this method, a compound was prepared by premixing polymer and filler, and the compound was mixed with asphalt to prepare Polymer-Modified Asphalt by changing the ratio of polymer and filler. The asphalts with good storage stability were formed with the addition of filler, by regulating the density difference between polymer and asphalt. With identifying the effect of composition factor and the technique conditions on mechanical properties of polymer/filler compound and the molecular distribution of the polymer, identifying the effect of composition factor and the technique conditions on the properties and structure of polymer/filler modified asphalt, Styrene-Butadiene-Styrene copolymer, Low Density PolyEthylene, Styrene-Ethylene-Butadiene-Styrene block copolymer modified asphalts with good storage stability and performance were prepared. Rheological method, gel content analysis and swelling measurement were adopted to elucidate the interaction between the polymer and filler. Filler reduced the difference between the polymer and asphalt with the premixing technique, which led to the improvement of the storage stability of the modified asphalts. The thermo-oxidative aging process of base asphalt and PMA were studied and the effect of antioxidant additives on the base asphalt and PMA were analyzed.
本论文采用等密度方法,即预先混合聚合物与填料制备复合物,复合物在沥青中会吸收油份而溶胀,改变填料的用量从而调节聚合物与沥青的密度差异的方法,制备出高温贮存稳定的改性沥青,并研究了工艺条件和配方因素对聚合物/填料复合物力学和聚合物分子量分布的影响,系统考察了工艺条件和配方因素对聚合物/填料改性沥青性能与形态结构的影响,研制出性能优良、高温贮存稳定的苯乙烯-丁二烯-苯乙烯三嵌段共聚物、氢化SBS、低密度聚乙烯改性沥青,并通过流变学分析方法及凝胶和溶胀测试探讨了聚合物与填料的相互作用,指出经过预混工艺填料改变了聚合物与沥青的密度差异,以此说明聚合物/填料改性沥青高温贮存稳定的原因;研究了基质沥青和聚合物改性沥青热氧老化过程,并分析了抗氧剂对基质沥青及聚合物改性沥青的影响,探讨了抗氧剂提高沥青耐老化性能的原因。
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The purpose of this initial reading of the notes are to ground themes and hypotheses and the data Next, ethnographers should begin to notice and systematically create records of patterns in the conversations and activities of people depicted in the notes In the case of ethnographic narratives, researchers must rely on the pattern being sufficiently clear in itself to convince and audience of its accuracy Disengaging: getting out although it is certainly possible to maintain complete professional distance when distributing questionnaires to anonymous subjects, it is not as easy during ethnography.
笔记的这起始阅读的目的将将主题和假定和数据置于地面然后,民族志学者应该开始注意而且有系统地产生交谈的式样的记录,而且活动的人在笔记中描述在民族志学的叙述情况,研究员一定仰赖在它本身是充分清楚说服的式样和它的准确性的听众使自由:逃跑虽然当分配对作者不详的主题调查表的时候,维持完全的专业距离无疑可能,但是它是不如容易的在民族志学期间。
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After overcoming the flux shift during the process, the production ability of strains could be the limiting factor for further increasing the production. To avoid the random modification on strains, the comprehensive enzymatic study of nucleoside producing-pathway was conducted on four strains with different producing ability. And the results could be used to direct further reconstruction of strains. It was also found that nucleotidase was of much importance to nucleoside production.
在成功克服了代谢流的迁移之后,菌株的代谢能力可能成为了进一步提高产率的限制因素,为了避免对生产菌的进一步改造中的盲目性,对四株不同菌株间嘌呤途径关键酶活力的系统测定,对肌苷、鸟苷生产菌种的酶学特征有了全面的了解;并发现了核苷降解酶对于核苷生产能力至关重要;酶学特性研究对肌苷、鸟苷生产菌的进一步改造提供了方向。
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The development of micro optics electronics mechanics system creates condition for microminiaturization and integration of spectrometer, the development of computer、artificial intelligence、chemometrics offers opportunity for intelligence of spectrometer.
以微机械、微电子和微光学为基础的微光机电系统为光谱仪的微型化、集成化创造了条件,而计算机、人工智能和化学计量学的发展则为光谱仪的智能化提供了契机。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。