查询词典 morphology

This paper studies the concrete implementation flow of contour-based retrieval based on wavelet transform modulus maxima , multi-scale morphology and invariant relative moments. Also, experimental results are given to validate the feasibility of our strategy and the corresponding retrieval performance is analyzed.

从理论和技术的角度研究了在基于目标形状的遥感影像检索中，应用基于小波变换模极大值和多尺度形态学的边缘检测方法以及基于不变相对矩的轮廓特征描述方法的具体实现技术流程，通过实验充分验证了本文方法的可行性，并分析了检索性能。

Though it can improve the plant tolerance using the CaMV35Spromoter to express the related genes in stress environment, the expression of resistant proteinwastes the energy in normal environment and the accumulation of the protein can inhibit the plantsnormal metabolism, causing the morphology change of the plant, resulting in growth anddevelopment retardment of transgenic plants.

利用组成型表达启动子控制抗性相关基因的过量表达虽然可以提高植物在逆境条件下的抗逆能力，但正常环境条件下细胞内组成型过量表达抗逆蛋白则是一种能量浪费，且正常环境下细胞内的抗逆蛋白长时间过量的积累可能妨碍植物的正常生长代谢，引起植物的形态发生改变，造成转基因植物生长发育严重停滞甚。

The morphology and number of lamellar bodies, perirhabdomal vacuole and pigment granule in the retinula changed with the day-night rhythm.

另外，在小网膜细胞中的板膜体、膜下储泡囊、色素颗粒等细胞器的形态和数量也随光周期呈现出规律性的变化。

To produce the scientific evidence for developing and manufacturing new antitumor drugs.Methods: 1 The inhibitory effect on cell growth of Hela was measured by MTT assay in treated or untreated groups (3.125, 6.25, 12.5, 25, 50μg/ml TAM and control) for three different treatment times (24h, 48h and 72h).2 Apoptosis and cell cycle were measured by FCM in four experimental groups (0, 4, 16, 40μg/ml TAM) for 48h.3 Adopting Wright and Giemse's staining to observe the morphology of Hela cells which treated with 40μg/ml TAM.4 Using invasion experiment to detect the Hela cells'invasive abilities which treated with 40μg/ml TAM.5 The protein expressional levels of P-ERK, ERK, C-myc and Cyclin D1 in Hela cells untreated or treated with 4, 16, 40μg/ml TAM for 24h were measured by Western blot.6 Expression of anti-apoptotic gene bcl-2, apoptotic gene bax and MMP-9 in Hela cells of four experimental groups (0, 4, 16, 40μg/ml TAM for 24h), were observed by revers transcription PCR.7 The protein expression of P-ERK, ERK, Bcl-2 and Bax in Hela cells treated with 40μg/ml TAM for 24h observed by laser scanning microscopes.

1采用四甲基偶氮唑蓝法检测不同浓度北豆根总碱(3.125、6.25、12.5、25、50μg/ml)处理不同时间(24、48和72小时)对Hela细胞增殖反应的抑制作用。2采用流式细胞技术(flow cytometry，FCM)检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用48小时，对Hela细胞凋亡及周期变化的影响。3瑞氏-姬姆萨染色后显微镜观察北豆根总碱(0、40μg/ml)作用24小时后Hela细胞形态学变化。4采用Transwell小室法检测北豆根总碱(0、40μg/ml)作用24小时后对Hela细胞侵袭性的影响。5采用免疫印迹方法检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用24小时后，Hela细胞中磷酸化ERK、ERK、C-myc、CyclinD1的表达变化。6采用逆转录-聚合酶链反应(revers transcription PCR，RT-PCR)半定量检测北豆根总碱(0、4、16、40μg/ml)作用24小时，Hela细胞抗凋亡基因bcl-2、促凋亡基因bax、基质金属蛋白酶-9(MMP-9)的表达变化。7应用激光共聚焦显微镜(laser scanning microscope，LSM)观察北豆根总碱(0、40μg/ml)作用24小时后，Hela细胞内P-ERK、ERK、Bcl-2、Bax蛋白的表达变化。

Viscosity, dynamic properties and interfacial morphology of the composite were investigated by ARES rotational rheometer and scanning electron microscopy.

采用ARES型旋转式流变仪和扫描电镜对材料的熔体粘度、动态特性以及界面形态作了研究。

Pollen morphology of 40 species of Rheum, belonging to eight sections, was investigated under light microscope and scanning electronic microscope .

以光学显微镜和扫描电镜技术对大黄属8个组40个种的花粉进行了形态、大小、表面纹饰的观察。

PURPOSE:The changes of expression level of rhodopsin mRNA and its relationship with the morphology in light damaged rat retinas were studied.

目的：研究视网膜光化学损伤状况下视紫红质基因mRNA表达水平的变化规律及其与形态学改变的关系。

Formation mechanism of particles; morphology and size control; nickel and cobalt oxalates; rhombohedron and fibre morphologies

工程科技I，化学，无机化学颗粒形成机理；形貌与粒度控制；镍钴草酸盐；菱柱状与纤维状形貌

The process is composed of three steps: the formation of Ni_2 gel; the nucleation of nickel oxalate; the transition from Ni_2 gel into nickel oxalate sol.The nickel oxalate synthesized is identified by XRD to beα-NiC_2O_4·2H_2O with rhombohedron morphology, while two angles of the rhombus at underside are 106 and 74 degrees separately.

研究中，采用SEM、XRD、FTIR、TGA—DTA、GCMS等方法，对粉末样品进行表征。1凝胶—溶胶法制备单分散草酸镍粉末提出了一种凝胶—溶胶法制备单分散草酸镍的方法，由Ni_2凝胶生成—NiC_2O_4·2H_2O颗粒形核—凝胶Ni(OH_2向溶胶(NiC_2O_4·2H_2O)转化3个步骤组成。

The purposes of this study were (1) to compare the differences of the transverse craniofacial morphology between the adult high-angle and low-angle facial skeletal types, and (2) to correlate the width measurements with data obtained from PA roentgenogram. Thirty-seven adults, 18 to 22 years old, with varied vertical facial types were separated into two groups: seventeen high-angle, twenty low-angle facial skeletal types.

高低角骨面型是垂直向发育异常所造成的两种极端骨面型，近年来逐渐成为学者们研究的热点，目前的研究大多是基于头颅侧位X线片从矢状向和垂直向进行比较，而未查及高低角骨面型横向颅面结构的系统性研究。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了