核点
- 与 核点 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This anteal analysed the the cadasteral surveying precision and evaluation by the way of analytic method and, strictly proved the formulae in relation to statistics method,and put forward the theory and method which can examine fortion of boundary point by allowable error,It is valuable in assessment of achievement quality of cadastre survey work developed extensitely at present.
文章分析了解析法地籍测量界址点精度检测与估计的实用方法,对实验统计方法中有关公式给出严密证明,提出利用允许误差对界址点进行检核的原理及方法。
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Weapply the kernel methods of regression functions and conditional density functions to obtain aseries ofβas the estimators ofβ.
回归函数核估计方法中,又分别提出了在选定连续样本点和离散样本点时的两种非参数估计模型,并对这两种模型做了详细的阐述。
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To overcome this problem ,the method based on correlation between kernel density estimation of tracking region is proposed.
本文提出了基于核密度估计相关的距离度量,在描述参考目标和候选目标时,考虑到诸如颜色、梯度等目标像点的特征区间的同时,融入了目标像点的空间位置信息,使得跟踪算法更加稳健和精确,能够更好适应目标和背景变化复杂的应用场合。
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Three kinds of embryos' chromosome, including goat fertilization embryo, goat-goat cloned embryo and goat-rabbit cloned embryo were analyzed, The results showed that all of them have 60 chromosomes with same character, all were telocentric chromosome, besides the X-chromosome is the second larger telocentric chromosome.
经对超排获得的山羊受精胚、山羊同种克隆胚和羊-兔异种克隆胚的囊胚期胚胎染色体分析表明,三种来源的胚胎其染色体数目均为60条,且所有常染色体均为端部着丝点染色体,X染色体为第二大的端部着丝点染色体,说明山羊同种克隆胚和山羊-兔异种克隆胚均为山羊的核型,是供体细胞核在不同胞质中的重新编程的结果。4。
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First of all, we study the exhaustion of the Bergman kernel, i.e., the kernel at any boundary sequence is unbounded.
第一部分,我们研究Bergman核的穷竭性,即,核在任意趋向于边界的点序列上无界。
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First of all,we study the exhaustion of the Bergman kernel,i.e.,the kernel atany boundary sequence is unbounded.
第一部分,我们研究Bergman核的穷竭性,即,核在任意趋向于边界的点序列上无界。
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Results: Neonatal rats in hypoxic-ischemicgroup behaved restlessness, cyanosis, deep and rapid breath, astasia, lethargy, irritation and spasm; There were local pyknosis, fragmentation, dissymmetry, blur or disappearance of nucleoli, raritas of ground substance in left cerebral cortex; but there was no statistic significance in chinese traditional medicine group and sham group. The expression of HIF-1α mRNA in brain tissue of experimental group and chinese traditional medicine group were higher than that in sham group, especially chinese traditional medicine group at 3d; HIF-1α positive cells were found in cerebral cortex and hippocampus. There were more HIF-1α positive cells in experimental group and chinese traditional medicine group and mainly in vascular endothelial cells.
结果 缺氧缺血后大鼠相继表现为烦躁不安、全身发给、呼吸加深加快、站立不稳、嗜睡、激惹或间断发作的痉挛和抽搐;HE染色显示实验组大鼠左侧大脑皮层出现局灶性神经元核固缩,核碎裂,核仁偏位,不清或消失,基质疏松;中药组大鼠脑组织结构基本接近假手术组,无明显水肿和坏死表现;实验组和中药组大鼠脑组织HIF-1α mRNA表达较假手术组明显增加,尤其是中药组实验第3日者;免疫组化显示实验组和中药组各时间点大鼠大脑皮层和海马区均可见不同程度的HIF-1α表达,明显高于假手术组,阳性表达主要在血管内皮细胞,海马和皮层的锥体细胞亦有HIF-1α阳性细胞分布。
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mitochondrial dnais the only inheritant substance except for the nuclear dna in a euˉkaryon cell,which is related to the oxidative phosphorylation of a cell.mitochondrial dna is the important target of carcinogens and is vulnerable because of its structure and function.the mutation of mtdna could reduce the nomal respitation and release large quantities of ros,whichincrease the danger of cancer happening.so,mtdna has been thought to be involved in carcinogenesis and recently more and more studies in this aspect have comeout.in this paˉper,we review the researches for relationship among mtdna mutation and tumors in digestion system,woman system,head and neck,urinary systemand blood system.
线粒体dna(mitochondrial dna,mt dna)是真核细胞中唯一存在的独立于核dna之外的遗传物质,与细胞的氧化磷酸化功能密切相关。mtdna自身的结构和功能特点决定了它是致癌物作用的重要靶点,易受致癌因素的损伤而发生突变。mtdna的突变可削弱正常的呼吸功能,释放高水平的活性氧,进而增加肿瘤发生的危险性,所以mtdna被认为与肿瘤发生有密切关系。近年来,这方面的研究越来越多,本文现就mtdna突变与消化系统肿瘤、妇科肿瘤、头颈部肿瘤、泌尿系统肿瘤等实体瘤以及血液系统恶性肿瘤之间的关系作一简单的综述。
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Megaspore mother cells undergo meiosis, which results in the formation of 4 megaspores in a row. The chalazal-most cell develops into an 8-nuclei embryo sac after 3 rounds of mitosis. A mature embryo sac is produced after cellularization and nuclear migration.
结果表明:1大孢子母细胞经过减数分裂形成直线排列的4个大孢子,其中珠孔端的3个大孢子退化,合点端的大孢子进行3次有丝分裂,形成八核胚囊, 8个核迅速细胞化,最终发育为成熟胚囊。
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This dissertation aims at finding anticancer and antibacterial polynuclear complexes targeting DNA with high activity and low toxicity. Sixteen compounds were synthesized, and characterized by means of X-ray single crystal diffraction, elemental analysis, molar conductivity and IR, and the influencing factors on structures of the compounds have been investigated. The actions of these compounds to DNA were also investigated by spectral, electrochemical and hydromechanical methods.
本论文以DNA为靶点,以寻找新结构类型的高效、低毒的抗癌、抗菌多核配合物为目标,从分子设计出发,共合成得到了16个化合物的单晶结构,对其进行了结构表征,探讨了结构影响因素,并研究了其超分子结构;采用紫外-可见吸收光谱法、荧光光谱法、电化学和粘度法,从分子水平上研究了所得配合物与DNA的相互作用;在细胞水平上,研究了草酰胺桥联双核配合物的抗菌和抗肿瘤活性。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。