呈现

The results show that, when the computational error and its accumulation are eliminated effectively, the laminar flow in OFR with perfect-symmetric boundaries behaves in a pattern of central symmetry and circumferential uniformity while the turbulent flow field presents a centrally symmetric and circumferentially non-uniform structure with 8 transverse vortices arrayed circumferentially in a way of central symmetry, similar to Taylor vortices in Couette flow.

模拟结果表明在有效消除计算随机误差以及误差积累的情况下，几何边界理想对称OFR内的三维层流流场呈现出良好的中心对称性和周向均匀性，而湍流流场中心对称的同时呈现出周向非均匀结构－在圆周上生成8个中心对称排列的横向漩涡，其形态与Couette流中的泰勒涡类似。

She illustrates people's survival state through her penetrating perception and particular personal experience. In the plaintive A Toast to the Past, the witty Cumbrous Roles, and the uncanny A Piece of Chippy Paper, she exposes all her experience and pain in life bravely.

无论是低调，哀婉的《与往事干杯》，诙谐温情的《角色累赘》，还是凄清怪诞的《纸片儿》，都勇敢的暴露和敞开了她所体验的全部生命之痛，把一个女人的全部的欲望、心智、孤独、病态等等一切的本来面目都呈现出来，并由女性个人化的东西升华到普遍人类的高度，使作品呈现出相当的理性深度，从而体现了作家本人对人类存在困境的深远忧虑。

Further more, hoechst stained caveolin-1 expressing GH3 cells showed chromatolysis and the character of cell and cell apoptosis was confirmed by TUNEL assay. To obtain this data, we hypothesize that caveolin may play a role in bromocriptine induced GH3 apoptosis.

在转型48小时后，GH3细胞表现外源性caveolin-1，其细胞呈现萎缩形态且其细胞核呈现计画性死亡的核体分解现象；但表现EGFP的细胞仍维持正常形态。

More HP0315 protein in the 24 hr spiral form than 48 hr coccoid form from suspension at pH 7.2 (ratio = 5:1) was observed.

当胃幽门螺旋杆菌呈现螺旋状时，HP0315的表现量比其在呈现球状时多(5：1)。

To let these similar pictures which were largely identical but with minor difference present themselves together, perhaps this was one of the real purposes, because only with such presentation could you see a realistic as well as a surrealistic world,a conjecturally invented as well as really existing world, a world which you have already placed yourself thereinto while you have no regard for, a world of "no value,but a value judgement itself",a world among which time and space has been twisted and interveined.

让这些看似大同小异的照片集体呈现，也许才是其目的之一，因为只有在这样的呈现中，你可以看到一个既是现实的却又是超现实的世界，一个既是臆想虚拟的却又是真实存在的世界，一个已经置身其中却又置之度外的世界，一个"没有任何价值，但本身就是价值判断"的世界，一个扭曲交错了时间和空间的世界。

However, the traveller encountered drastic transformation after his contact with the Other in the Pacific. In his last travel writing In the South Seas, Stevenson adopted a contrapuntal viewpoint located in the space of "liminality," challenging the Western hegemonic discourse of imperialism. His anti-imperialist tendency offended his contemporary readers, and the struggle between two cultures rendered the travel text fragmented.

但是，旅行者的自我在交会区与差异极大的他者接触之后，旅行者的自我发生转变，在《南太平洋记行》采用「阈越的空间」的对位观点，呈现出反帝国主义的倾向，这种反帝国主义论述的倾向遭到当时西方读者的排斥，同时在西方与南太平洋文化的两相拉扯之下，呈现出支离破碎的文本。

As the term of contraposition of structure, which displays different contents and materials under one theme, authour set the same goal with different, relatively integrate means and different plots on narrative or plot.

而小说的结构对位，即是在同一主题下，以此来呈现不同内容、材料，使其在目标一致的情况下，在叙事或故事情节上呈现出相对完整的意义和不同的故事情节。

Study tool is "Science and technology Material Item Correlation Table" drawn up by research group, answered by three current teachers, the correlation of each material item is displayed by quantification data through SPSS statistical software to understand potential internal factor and display another structure in the curriculum.

研究工具是由研究小组建立一「自然与生活科技教材内容细目相关联表」，由三位现职教师填答，经SPSS统计软体处理，将教师对教材细目之间的关联性，以量化数据的方式呈现，来了解课程潜在的内在因素，及呈现课程的另一架构。

Upfront layers of fresh citrus fruits and sweet peach combine with mid-palate soft creaminess and flavours of toasty yeast.

口感新鲜，前段呈现出柑橘与桃子的香甜气味，中段呈现出奶油味和烤面包的香味。

The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.

理论分析和试验研究表明： 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的，具有摩擦动力学的本质，任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响； 2中心轴向载荷作用下，载荷增大使球轴承的固有振动频率升高，载荷越大同样的载荷增幅引起的频率升幅减小，足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响； 3轴向和径向联合载荷作用下，径向载荷不大时球轴承振动的固有频率基本不变，但是可能引起变刚度激励的非线性振动，出现新的频峰，过大的径向载荷将使部分钢球脱离接触，使球轴承的振动和噪声呈现不稳定状态； 4润滑对球轴承的振动和噪声特性有重要的影响，良好的润滑对振动有明显的抑制作用，润滑不充分时，振动和噪声的水平会有明显增高，一定条件下还会激发接触副中的谐振，发出啸声，造成接触表面的伤害，无润滑干接触时，短时的运转就会损伤接触副表面，使振动和噪声迅速增大，并随时可能引发严重的磨损和卡滞失效；接触副润滑良好时，油膜的"刚化效应"使球轴承振动的固有频率有所提高，润滑剂中含有弥散性污浊时，振动的幅度总体升高，但弥散性污浊不会改变球轴承振动的频率特性；浙江大学博士学位论文：球轴承振动的研究 5低速时，球轴承振动的基本特征呈现不稳定状态，随着转速的提高，球轴承振动的频率特性趋于稳定，固有频率频峰升高； 6理论分析表明，干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动，振动的幅值与谐波幅值成正比，实际球轴承中钢球的分布不可能完全均匀，波纹度的激励作用会随时发生；润滑接触的分析表明，波纹度的任意谐波分量均能激励球轴承的振动； 7球轴承的几何和结构参数分析表明，球轴承尺寸越大，径向、轴向和角振动的固有频率越低；钢球中心圆直径增大，球轴承的径向和轴向振动的固有频率基本不变，角振动的固有频率有所上升，振动的幅频特性基本不变；径向游隙加大使球轴承的径向振动固有频率降低，轴向和角振动的固有频率有所升高，径向振动幅频特性的幅值升高，而轴向和角向降低；钢球的数量增多使球轴承振动的固有频率上升，幅频特性的幅值下降，径向振动的幅值下降最为明显；外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高，轴向和角振动的固有频率降低，径向幅频特性基本不变，轴向和角向幅频特性幅值升高；内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降，振动幅频特性的幅值均有升高； 8试验对比表明，传感器采用探针式安装时，由于探针接触副接触特性的影响，钡(量得到的球轴承振动信号有失真，采用专门设计和制作的试验球轴承，以固定式安装加速度计，首次测量得到了球轴承振动的真实信号，通过对振动信号的分析，验证了球轴承振动的理论模型； 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析，以样本长度的均方根值作定阶上界，FPE做判阶准则，给出的AR谱光滑，频率分辨率高，是球轴承振动分析的简便而可靠的手段； 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间，时间间隔，频率范围，同样是球轴承振动分析的可靠的手段，可用作球轴承故障诊断技术。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。