x
uploads/unipolar.jpg

unipolar adj.【電學】單極的;【生物學】單尾的,(細胞等)單極...

unipolarity

In this article , starting from the biggest objective factor - the unipolar world order with the united sates standing out of all the other powers - and the biggest subjective factor - the traditional diplomatic thoughts of the united states , the author tries to analyze various disagreements and arguments about the united nations in america , especially between the whitehouse and the congress , so as to bring to light the reason why the united states ca n ' t have or implement a stable and clear - cut un policy . by trying to locate the united nations in the global hegemon strategy of the united states , the author put on exposure the essence of america ' s un policy : the united states is striving to lead and dominate the united nations and using it as a means to materialize its global hegemon dream 本文將從美國主導的一超多強單極格局這一最大的客觀因素和美國傳統的外交思想這一最大的主觀因素出發,通過剖析美國國內,尤其是行政部門和立法部門關于聯合國的種種分歧和爭論,探究美國難以形成和執行穩定鮮明的聯合國政策的原因,并通過分析美國的全球稱霸戰略與聯合國的關系,進一步揭露冷戰后美國對聯合國政策的本質,即在美國主導的單極世界格局里,美國在參與、支持和改革聯合國的同時,力圖謀求控制和領導聯合國,把它當成其稱霸世界的工具。

The refined explaining mode will focus on the subsequent points : firstly , it will emphasize the vital effects of the changing international structure , especially america ' s unipolar hegemonic status , on endurance and transformation of the atlantic alliance . secondly , the pursuit of security and relative power motivates nato “ s member states to endure and reform the alliance . thirdly , western europe states “ recognition of the security function of nato influences the endurance and transformation of nato 從現實主義的角度出發,論文通過對北約組織在其成員、力量支柱和使命等幾個重要方面的調整(分別表現為北約的擴大、北約歐洲支柱的發展和北約新使命的提出)進行詳細分析,利用體系層次和單元層次相結合的分析方法,對該聯盟持續存在和發展的原因進行了現實主義途徑的讓釋。

In the third chapter , the properties of the bipolar sequence are analyzed firstly . the auto - correlation , the cross - correlation and the accommodation of simultaneous users under given bit error rate between the bipolar codes and unipolar codes are compared . the conclusion is that bipolar codes have better auto - correlation and cross - correlation , and the system that uses bipolar codes can accommodate more users and simultaneous users 通過對其性質的總結,自相關曲線、互相關曲線的對比,以及在規定誤碼率條件下,使用雙極性序列的系統與使用光正交碼的系統之間的同時用戶數比較,得出以下結論,雙極性系統較之單極性系統具有更好的自相關、互相關函數,碼字容量更大,使用雙極性序列的ocdma系統在規定誤碼率條件下的同時用戶數比使用單極性序列的系統要多得多,雙極性序列完全適用于ocdma系統。

Abstract : analyzes the performance of unipolar ocdma system using optical orthogonal code ( ooc ) considering the dispersion and nonlinearity effect of the transmission medium . theoretical analysis demonstrates that dispersion and nonlinearity effect deteriorate the system performance . the performance of ocdma system assuming dispersion - shifted fiber as transmission medium is very close to the case neglecting the dispersion and nonlinearity effect . assuming rz initial pulse and optical hard limiter are also possible solutions 文摘:分析了基于光正交碼( ooc )的光碼分多址系統的性能.數值結果表明:與以前忽略光纖信道對系統性能的情況相比,在考慮了光纖的色散和非線性效應以后,系統性能有了明顯的下降.給出了一些建議方案來遏制由色散和非線性效應引起的系統性能惡化

Characterization of an external - magnetic field mid with polymer anode and a self - magnetic field mid with graphite anode operated in unipolar and bipolar pulse mode , respectively , has been performed . it is found that the characteristics of hipib are mainly depended on two crucial factors , i . e . the properties of insulated magnetic field and anode plasma 通過聚合物陽極的單極脈沖模式外磁絕緣離子二極管和石墨陽極的雙極脈沖模式自磁絕緣離子二極管工作特性的實驗研究發現,影響hipib產生特性的主要因素是離子二極管的絕緣磁場性質和陽極等離子體特性。

Railway fixed equipment . high speed unipolar circuit - breakers for direct current traction systems 750 , 1500 and 3000 volts . characteristics and tests 鐵路固定設備.直流電壓為750 1500和3000v的牽引設備的高速單極斷路器.性能和試驗

Interference between myopotentials and pacemakers is well recognized , especially in a unipolar pacing system 摘要骨骼肌收縮所產生的肌電位可能會對心律調節器產生干擾,尤其是在單極性之心律調節器。

Ultrasound guided immature follicle puncture and unipolar electrocoagulation technique via vagina in treating polycystic ovarian syndrome 超聲引導卵泡穿刺電凝打孔治療多囊卵巢綜合征的臨床應用

The analysis of potential along the channel of the unipolar organic static induction transistor 單極型有機靜電感應三極管溝道縱向電勢分析

Relaxation limit of a unipolar isentropic hydrodynamic model for semiconductors 一類單極等熵流體動力學半導體模型的松弛極限

Standard test method for unipolar magnitude estimation of sensory attributes 感官特征單極性光度評估的標準試驗方法

Unipolar in contrast with bipolar 單極與雙極相對

Unipolar field effect type transistor 單極場效應晶體管

Unipolar neuron seudounipolar neuron 單極神經元假單極神經元

Three unipolar limb leads are conventionally employed in clinical electrocardiography . 有三個單極的肢體導聯習慣上用于臨床心電圖。