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two的相关文献在1985年到2023年内共计39138566篇,主要集中在数学、肿瘤学、常用外国语 等领域,其中期刊论文370篇、专利文献39138196篇;相关期刊228种,包括初中生必读、中国科学、小学教学设计:英语等; two的相关文献由50000位作者贡献,包括不公告发明人、王伟、张伟等。

two—发文量

期刊论文>

论文:370 占比:0.00%

专利文献>

论文:39138196 占比:100.00%

总计:39138566篇

two—发文趋势图

two

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  • 不公告发明人
  • 王伟
  • 张伟
  • 王磊
  • 李伟
  • 张磊
  • 刘伟
  • 王勇
  • 张涛
  • 李强

two

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    • 王晴颖
    • 摘要: 作为世界领先的丹宁面料品牌,ISKO^TM—直走在时尚可持续、负责任发展运动的前沿。ISKO^TM一贯致力于可持续生产和发展,希望帮助保护地球有限的资源,并尽力在面料的产品生命周期中减少各种资源浪费。最近ISKO推出了开创性的“R-TWO”概念,即在丹宁面料的生产过程中使用循环再用棉花(re-used cotton)和再生涤纶(recycled polyester)。
    • 徐艳
    • 摘要: 英文字母算式谜数学与英语,表面上看来好像是南辕北辙,关系疏远,其实两者之间也是互有联系的。比如一道简单的数学算式5+2+1=8,用英语单词表示是FIVE+TWO+ONE=EIGHT,列出竖式是:有人根据这个算式编成了一道数学算式谜:如果上面的字母分别表示0~9这10个数字,相同的字母表示相同的数字,现在已知W=4,G=5,N=7,那么要使这个算式成立,其他字母各应表示什么数字?
    • Si Thu Tun1
    • 摘要: Beijing’s weather in the first week of March was by far the finest yet this year.The city was where the annual“Two Sessions”of the NPC and CPPCC took place earlier in March.As was the practice in previous years,the Chinese government usually reveals its future plans and ongoing work to the world during the two weeks of the Two Sessions,a time in which international journalists tend to flock to China to cover the event.
    • 董明义
    • 摘要: 要点梳理一般过去时表示在过去某个时间或过去某一段时间内发生的动作或存在的状态。一、一般过去时的标志1.一般过去时常和表示过去某时间的状语连用,如yesterday、yesterday morning / afternoon / evening、last night、in 1995、two days ago、just now等;也可与often或always等表示频度的状语连用,用来表示过去经常发生的动作。
    • 丫丫
    • 摘要: I''m a little snowman.Look at me.These are my buttons(纽扣).One,two,three.These are my eyes,And this is my nose.
    • 剑豪1; 小路(图)1
    • 摘要: 真力GENELEC这个品牌,因其客户主要是一些专业音频工作者,对于部分发烧友来说可能觉得有点神秘。作为2018年11月刊的封面——真力40周年特别访谈,笔者亦籍此契机,深入了解这个品牌的文化。直至今日,终于有机会能亲手把玩GENELEC G Two。
    • Ali Esseid Almuzwghi; Lail Brian
    • 摘要: A broadband microstrip patch antenna, loaded E-U-shaped open slot on backward of radiating layer is proposed and experimentally investigated. The antenna employs a foam-filled dielectric substrate, whose dielectric constant is within the lower end of the range. The proposed antenna has been designed for electromagnetic analysis including the impedance bandwidth, reflection coefficient, radiation pattern, and antenna gain. The open slot is loaded on the back radiated layer, which is perpendicular to the radiating edge of the oblong microstrip patch component, where the symmetric line feed is selected. This new technique used to increase the bandwidth and the gain of antenna through increasing current path by slot location, width and length on backward of radiating Layer. The main structure in this research was a single microstrip patch antenna planar with three layers operating at two resonant frequencies 4.440 GHz and 5.833 GHz. All the simulated results are confirmed by two packages of electromagnetism simulation. An impedance bandwidth (S11 ≤ ?10 dB) up to about 41.03% and 30.61% is achieved by individually optimizing its parameters. The antenna exhibits nearly stable radiation pattern with a maximum gains of 8.789 dBi and 9.966 dBi, which is suitable for Wi-Fi Band, satellite communications, and wireless presented. Whereas the results before this design that we have a proof of publication are 36.17% and 28.43%.
    • Atsushi Okajima; Takahiro Kiwata
    • 摘要: Results from a series of studies on the stream-wise vibration of a circular cylinder verifying Japan Society of Mechanical Engineers Standard S012-1998, Guideline for Evaluation of Flow-induced Vibration of a Cylindrical Structure in a Pipe, are summarized and discussed in this paper. Experiments were carried out in a water tunnel and in a wind tunnel using a two-dimensional cylinder model elastically supported at both ends of the cylinder and a cantilevered cylinder model with a finite span length that was elastically supported at one end. These cylinder models were allowed to vibrate with one degree of freedom in the stream-wise direction. In addition, we adopted a cantilevered cylinder model that vibrated with two degrees of freedom in both the stream-wise and cross-flow directions under the same vibration conditions as an actual thermocouple well. The value of the Scruton number (structural damping parameter) was changed over a wide range, so as to evaluate the value of the critical Scruton number that suppressed vibration of the cylinder. For the two-dimensional cylinder, two different types of stream-wise excitations appeared in the reduced velocity range of approximately half of the resonance-reduced velocity. For the stream-wise vibration in the first excitation region, due to a symmetric vortex flow, the response amplitudes were sensitive to the Scruton number, while the shedding frequency of alternating vortex flow was locked-in to half of the Strouhal number of vibrating frequency of a cylinder in the second excitation region. In addition, the effects of the aspect ratio of a cantilevered cylinder on the flow-induced vibration characteristics were clarified and compared with the results of a two-dimensional cylinder. When a cantilevered circular cylinder with a finite length vibrates with one degree of freedom in the stream-wise di-rection, it is found that acylinder with a small aspect ratio has a single excitation region, whereas a cylinder with a large aspect ratio has two excitation regions. Furthermore, the vibration mechanism of a symmetric vortex flow was investigated by installing a splitter plate in the wake to prevent shedding of alternating vortices. The vibration amplitude of acylinder with a splitter plate increased surprisingly more than the amplitude of a cylinder without a splitter plate. For a cantilevered cylinder vibrating with two degrees of freedom, the Lissajous figure of vibration of the first excitation region shows the trajectories of elongated elliptical shapes, and in the second excitation region, the Lissajous trajectories draw a figure “8”. The results and information from these experimental studies proved that Standard S012-1998 provides sufficient design methods for suppressing hazardous vibrations of cylinders in liquid flows.
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