- 更多网络例句与使具有特征相关的网络例句 [注:此内容来源于网络,仅供参考]
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This method represents the virtual objects in Euclidean space instead of in affine space, which is consistent with the popular graphics rendering tools such as OpenGL and is more common in practice. A new classification based local and global tracking strategy to match features between the reference image and the currently frame directly is presented, which enables the augmented reality system working effectively even under large changes of viewing angles. A novel affine coordinate system definition method based on a collection of feature points is also proposed, which makes the tracking method effective even when not all the reference points are detected during the whole process, as long as there are at least four pairs of reference points correspondences.
该方法以仿射变换为桥梁来建立欧氏空间下的摄像机坐标系与世界坐标系之间的变换关系,它与OpenGL等当前流行的图形渲染工具一致,具有更强的通用性;采用基于分类的自然特征匹配策略,能够在视角和视点发生大幅度变化情况下依然正常工作;提出基于特征点集合的仿射坐标系定义方法,使增强现实系统在最小配置下只需4点追踪成功即可完成注册,比需要6点的透视投影方法具有更好的健壮性和精确性。
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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。
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From May 4th Movement of 1919 to the 1920s, sex love narrations in Chinese novels were rather an enlightenment and liberation in that particular era with four characteristics. Firstly, sexual desire was endowed with rationality with regard to liberation of human nature and mutual love. Secondly, with an epochal concern for a stronger and superior race, greater attention was paid to sexual parties concerned, mainly physically. Thirdly, new ethics on sex were promoted in that personal freedom on sex love was emphasized and sex love became an important way of self-fulfillment. Therefore, independence of sex love was advocated and the scope of sex love was also widened. Fourthly, the sex consciousness of this period had the mixed features of the past and the contemporary. Sex love narrations in the 1930s and 1940s showed a further exploration on the theme of human nature. First of all, sex was restored to a kind of desire. ShenCongwen probed the importance of harmonious sex love to a sound personality and Shi Zhecunrevealed that sexual inhibition could lead to the distortion, even frenzy of human nature. Bothexplored the influence and functions of sexual desire as human nature upon human personality,giving prominence to the irresistibleness of sexual desire and the significance of sexual desire asa motive. Then, human bodies driven by sexual desire were described and given greater attentionto. Next, ethics on sex were deconstructed either by Shen Congwen who opposed man-madeethics with law of nature and the School of New Sensation who replaced traditional ethics on sexwith exchange rules in consumption, or by Shi Zhecun who spared no efforts in representing thecomplete failure of social rules, including ethics on sex, due to the impact from sexual desire.The direct effect was a paleness of the ethical binding force on sex. Last, sex consciousness inthe works of female writers emerged. In the early works of Ding Ling, the sexual desire of thefemale is no longer a ramification of emotion but an independent one. In addition, in the sex lovenarrations of other female writers, such as Mei Niang, strong self-consciousness on the socialstatus of the female is also reflected. Sex love narrations in the late 1970s and early 1980s wereactually a re-enlightenment in the spirit of humanism, whose major features include humanisticlegitimation of sex love within the boundary of ethics, a blend of sex love narrations withnational concepts and national myths as well as the aesthetic, poetic descriptions of humanbodies etc. In the middle and late 1980s, sex love narrations entered a stage of exploration forpluralism. First, by restoration of sexual desire, writers of this era restored human nature, thevery original state of human being. Different emphasis and tendencies could be seen in differentwriters: looking at sex love dialectically and trying to describe its creative as well as destructivecharacteristics; connecting sex love with violence and trying to reveal the evil side of humannature through it; emphasizing the creativeness of sex love especially in the heritage of"wildness".
从"五四"到20世纪20年代,中国小说的性爱叙事是一种处在时代夹缝中的启蒙和解放,其所表现出来的特点,一是正面赋予性欲望以合理性,这种合理性是在人性解放和爱情前提下获得的;二是在强种育种的时代焦虑影响下小说性爱叙事表现出对物质身体的关注,其焦点主要在体格方面;三是树立起新的性伦理道德观念,表现为强调在性爱问题上的个人选择自由,性爱成为个人自我实现的重要方式,从而赋予人在性爱问题上的独立性,同时还扩大了性爱表现的领域;四,这个时期小说性爱叙事中所表现出的性意识还具有新旧杂糅的特点。30、40年代小说性爱叙事表现出对人性主题的深化与丌拓,首先是把性还原为欲望本身来探索,沈从文从和谐性爱对健全人性的决定作用、施蛰存从性压抑会导致人性扭曲甚至疯狂的角度探讨作为人类本质性欲望的性对人性产生的影响和作用,突出了性欲力量的不可抗拒和作为人类行为的重要动力等方面的内容;其次在叙事中表现出对欲望化了的身体的描绘与关注;第三是解构了性的伦理道德,无论是沈从文以自然法则来反对人为的道德设置还是新感觉派用消费交换原则替代传统性伦理道德,或是施蛰存极力表现包括性伦理规范在内的社会法则在性欲力量冲击下溃不成军,其直接的效果都是使性伦理道德对人的约束力量显得苍白虚弱;第四,出现了由女性作家表现的女性性意识,在丁玲的早期作品中女性的性欲望不再是作为感情的衍生物而是独立的欲望存在,而在梅娘等其他女作家的小说性爱叙事中则表现出对女性社会地位的强烈自觉意识。70年代末80年代初期小说的性爱叙事实际上是在人道主义语境下的再次启蒙,其主要特征一是性爱在人道主义前提下获得合法性,但要求性爱不超出伦理规定的范围;再就是将性爱叙事同国家观念和民族神话相融合;此外还有对身体的描写审美化诗意化等。80年代中后期,小说性爱叙事进入了多元化探索的阶段,作家通过还原性欲望来还原人性、还原人类的本真状态,不同作家笔下表现为不同的侧重和倾向——以辨证的方式看待性爱,写出其具有的创造性力量和毁灭性特征;将性爱与暴力相联系并通过其来表现人性的黑暗;强调性爱的创造性作用,尤其在民族"血性"的传承方面。
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The gradient wind often shows the fectures of sea breeze front and zonal coast front in the afternoon during stronger sea breeze and in the early morning during stronger land breeze. Low cloud and thunderstorm weather phenomena obvously increase, and the land and sea breeze and terrain obviously affect the precipitation distribution.
海风强盛季节的午后和陆风强盛季节的早上,沿海的温度梯度常具有海风锋和海岸锋的特征,使沿海地区低云和雷暴天气明显增多,降水分布具有明显的海陆风和地形影响特征。
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The Chinese light verbs supported by neuromechanism can explain the generative question in Chinese interchangeable phrases, causative structures, reverse factitive structures and verb-complement structures. All these questions can be marked by causative in the lexical feature and moving in syntax. All the conclusions demonstrate that we can unify the explanations of Chinese syntax and lexicon by light verbs. Therefore light verbs are the interface among brain, lexicon and syntax.
具有神经基础支持的汉语轻动词理论可以解决汉语可变换位置词组、使动句、反转型使役句以及动补结构等句子的生成问题,而这些问题在轻动词词汇特征上可以用&致使&性来统一标示,在句法特征上可以用&移位&来统一操作,从而表明汉语轻动词可以实现词法句法的统一解释,轻动词研究是大脑、词库以及句法研究的结合点。
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The effect of high intensity ultrasonic on solidification process of Sn Sb peritectic alloy was investigated.
在锡锑包晶合金的凝固过程中导入高能超声,不仅显著细化α相和β相晶粒组织,同时使具有立方晶体特征的β相组织有明显的球化趋势,消除了密度偏析。
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Chapter two announces that outer space has a characteristic of a society---space entity via rather systematic discussions on the concept, systematic composition, characteristic and influence factor of outer space of high residential buildings, thus brings us deep , overall knowledge to the intension , essence and characteristic of the outside space of high residential building, turn back the superficial and one-sided understandings fettering us for long.
第二章通过较为系统的论述高层住宅外部空间的概念、系统构成及特征、影响因素等内容,揭示了外部空间所具有的社会---空间统一体特征,从而使我们对高层住宅外部空间的内涵、本质和特征具有深刻、全面的认识,扭转长期以来束缚我们的肤浅片面的认识。
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A two-times locating method based on the gray contrast of surroundings is presented in locating central reference point. This method has better adaptability and robustness, and can basically meet for the accuracy of automatic locating center. Fourier spectral analysis is improved to obtain a more accurate ridge frequency in computing ridge frequency. The average ridge width is used in designing Gabor filters, so the filters have certain adjustability. The rotating invariance of fingerprint images is solved by the rotating of feature models in feature matching.
在中心参考点定位部分,提出了基于局部邻域灰度对比度的二次定位方法,该方法具有较强的适应性和鲁棒性,基本满足自动中心定位的准确度要求;在频率域估计中,改进了傅立叶谱分析法,提高了纹线频率计算的准确度;引入平均纹线宽度作为Gabor滤波器的设计参数,使滤波器具有一定的自适应性;在特征匹配阶段,通过对特征模板的旋转解决指纹图像的旋转不变性问题。
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From May 4th Movement of 1919 to the 1920s, sex love narrations in Chinese novels were rather an enlightenment and liberation in that particular era with four characteristics. Firstly, sexual desire was endowed with rationality with regard to liberation of human nature and mutual love. Secondly, with an epochal concern for a stronger and superior race, greater attention was paid to sexual parties concerned, mainly physically. Thirdly, new ethics on sex were promoted in that personal freedom on sex love was emphasized and sex love became an important way of self-fulfillment. Therefore, independence of sex love was advocated and the scope of sex love was also widened. Fourthly, the sex consciousness of this period had the mixed features of the past and the contemporary. Sex love narrations in the 1930s and 1940s showed a further exploration on the theme of human nature. First of all, sex was restored to a kind of desire. ShenCongwen probed the importance of harmonious sex love to a sound personality and Shi Zhecunrevealed that sexual inhibition could lead to the distortion, even frenzy of human nature. Bothexplored the influence and functions of sexual desire as human nature upon human personality,giving prominence to the irresistibleness of sexual desire and the significance of sexual desire asa motive. Then, human bodies driven by sexual desire were described and given greater attentionto. Next, ethics on sex were deconstructed either by Shen Congwen who opposed man-madeethics with law of nature and the School of New Sensation who replaced traditional ethics on sexwith exchange rules in consumption, or by Shi Zhecun who spared no efforts in representing thecomplete failure of social rules, including ethics on sex, due to the impact from sexual desire.The direct effect was a paleness of the ethical binding force on sex. Last, sex consciousness inthe works of female writers emerged. In the early works of Ding Ling, the sexual desire of thefemale is no longer a ramification of emotion but an independent one. In addition, in the sex lovenarrations of other female writers, such as Mei Niang, strong self-consciousness on the socialstatus of the female is also reflected. Sex love narrations in the late 1970s and early 1980s wereactually a re-enlightenment in the spirit of humanism, whose major features include humanisticlegitimation of sex love within the boundary of ethics, a blend of sex love narrations withnational concepts and national myths as well as the aesthetic, poetic descriptions of humanbodies etc. In the middle and late 1980s, sex love narrations entered a stage of exploration forpluralism. First, by restoration of sexual desire, writers of this era restored human nature, thevery original state of human being. Different emphasis and tendencies could be seen in differentwriters: looking at sex love dialectically and trying to describe its creative as well as destructivecharacteristics; connecting sex love with violence and trying to reveal the evil side of humannature through it; emphasizing the creativeness of sex love especially in the heritage of"wildness".
从&五四&到20世纪20年代,中国小说的性爱叙事是一种处在时代夹缝中的启蒙和解放,其所表现出来的特点,一是正面赋予性欲望以合理性,这种合理性是在人性解放和爱情前提下获得的;二是在强种育种的时代焦虑影响下小说性爱叙事表现出对物质身体的关注,其焦点主要在体格方面;三是树立起新的性伦理道德观念,表现为强调在性爱问题上的个人选择自由,性爱成为个人自我实现的重要方式,从而赋予人在性爱问题上的独立性,同时还扩大了性爱表现的领域;四,这个时期小说性爱叙事中所表现出的性意识还具有新旧杂糅的特点。30、40年代小说性爱叙事表现出对人性主题的深化与丌拓,首先是把性还原为欲望本身来探索,沈从文从和谐性爱对健全人性的决定作用、施蛰存从性压抑会导致人性扭曲甚至疯狂的角度探讨作为人类本质性欲望的性对人性产生的影响和作用,突出了性欲力量的不可抗拒和作为人类行为的重要动力等方面的内容;其次在叙事中表现出对欲望化了的身体的描绘与关注;第三是解构了性的伦理道德,无论是沈从文以自然法则来反对人为的道德设置还是新感觉派用消费交换原则替代传统性伦理道德,或是施蛰存极力表现包括性伦理规范在内的社会法则在性欲力量冲击下溃不成军,其直接的效果都是使性伦理道德对人的约束力量显得苍白虚弱;第四,出现了由女性作家表现的女性性意识,在丁玲的早期作品中女性的性欲望不再是作为感情的衍生物而是独立的欲望存在,而在梅娘等其他女作家的小说性爱叙事中则表现出对女性社会地位的强烈自觉意识。70年代末80年代初期小说的性爱叙事实际上是在人道主义语境下的再次启蒙,其主要特征一是性爱在人道主义前提下获得合法性,但要求性爱不超出伦理规定的范围;再就是将性爱叙事同国家观念和民族神话相融合;此外还有对身体的描写审美化诗意化等。80年代中后期,小说性爱叙事进入了多元化探索的阶段,作家通过还原性欲望来还原人性、还原人类的本真状态,不同作家笔下表现为不同的侧重和倾向——以辨证的方式看待性爱,写出其具有的创造性力量和毁灭性特征;将性爱与暴力相联系并通过其来表现人性的黑暗;强调性爱的创造性作用,尤其在民族&血性&的传承方面。
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First a triangle mesh is used to track the image edge orientation in every local area, all mesh grids is set as close as possible to edge, then image is warped according to the position of these mesh grids. After warping, all edge orientations are almost near to one of the three preferred orientations. The subjective quality of reconstructed image is improved while objective quality is almost the same.
首先利用三角形网格对图像进行边缘特征跟踪,使网格点跟踪最近的边缘特征点,然后根据网格点的位置使图像产生形变,使原图像中的边缘方向分别大致变成水平、竖直或对角方向,以适应只具有这三个方向高通的滤波器。
- 更多网络解释与使具有特征相关的网络解释 [注:此内容来源于网络,仅供参考]
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characterise:使具有......特征
prevailing 盛行的 | characterise 使具有......特征 | cautious 小心的,谨慎的
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coloratura:花腔
"花腔(Coloratura)是西洋美声唱法中女声的一种旋律精致灵巧的装饰唱法,其音乐特征体现为音域c1-e3甚至更高,以急速音阶或琶音及华彩乐段等一系列方式,使旋律演唱富于装饰性和华彩性,具有很高的技巧难度.
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Europeanism:欧洲主义/欧洲人的特征
European /欧洲的/ | Europeanism /欧洲主义/欧洲人的特征/ | Europeanize /欧化/使具有欧洲风格/
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Europeanize:欧化/使具有欧洲风格
Europeanism /欧洲主义/欧洲人的特征/ | Europeanize /欧化/使具有欧洲风格/ | Europen /欧洲/
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headline:新闻标题
[正文快照] 新闻标题(headline)在整个新闻中位置突出,用字简约而又别具一格,从而对整个新闻的解读起到非常关键的作用. 但也正由于其本身所具有的一些特征和规律,从而使其在语言运用方面与常规语言有所不同.
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Lust:性慾
收集而来的资料体(agathering body of data)支持此一概念:性欲(lust)──无脊椎生物便具有的特征──是一群因 SRY 存在,而表现于其下游的基因之宿主(host),这些基因并且协调地运作,使性腺形态发生得以进行.
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prominent:突出
不良Poor:亮域和暗域间对比很少,整体感觉乃整区暗中带有少许亮域,具有突出(prominent)的明暗模式特征,使钻石看起来极不迷人. 桌面下区域经常呈现阴暗(黑暗中心),有时结合了极暗的腰上刻面与极暗的放射状主刻面. 由于腰上刻面太暗,
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:Quality Education:素质教育
活泼浪漫是孩子们的天性,素质教育(Quality Education)的最高境界也就是使学生在快乐中成长. 孩子们在接受知识时也总是首先抓住那些感兴趣的、具有明显特征的东西. 所以那位给笔者带路的小学生脱口而出的是祖冲之画像的特征:老头,胡子;
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Self-Healing:自愈
先进的相量测量(PMU)和广域测量技术(WAMS);先进的配电自动化 高级配电运行(ADO)功能使"自愈" (Self Healing) 成为可能;智能电网主要特征要素(Key Elements)归纳为六点,即具有坚强、自愈、兼容、经济、集成、优化等特征.
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syncytium:合胞体
此后发现许多DNA病毒也具有这种作用.麻疹病毒和副流感病毒能使感染的细胞膜发生改变,而导致感染细胞与邻近未感染细胞发生融合.细胞融合 (Cell fusion )的结果是形成多核巨细胞(Polykaryocyte) 合胞体(Syncytium).这是这类病毒感染细胞的病理特征.另外,