pcf 中文意思是什麼

pcf 解釋
磅英尺3
  1. Field bus cable for cc - link, can - bus, lonworks, profibus - dp, profibus - pa, foundation fieldbus, as - i, devicenet, controller - link, interbus, melsecnet, servo motor cable, h - pcf

    柔性伺服編碼器用屏蔽雙絞信號電纜、柔性伺服電機用屏蔽動力電纜。
  2. Based on the findings of pcf 200001, it is anticipated that new container terminal berths will be required towards the end of this decade, new river trade berths will not be required until the next decade, and there is no immediate demand for other port and port - related facilities

    根據香港港口貨運量預測二零零零零一的估計結果，預料在未來十年之末期，我們便需要新的貨櫃碼頭泊位，而新的內河貨運泊位將會在未來十多二十年後才會有需求，而對其他港口及相關設施，則沒有即時的需求。
  3. The current fourth review ( port development strategy review 2001 ( pdsr2001 ) ), carried out in - house by the port and maritime division of the economic services bureau ( pmdesb ), the planning department and the marine department, seeks to update the third pdsr based on the report findings of the port cargo forecasts ( pcf ) 200001 ( completed in feb. 2001 )

    現時的第四次檢討（二零零一年港口發展策略檢討） ，是政府運用內部資源進行。檢討工作由經濟局港口及航運部、規劃署和海事處共同負責，目的是根據二零零一年二月完成的香港港口貨運量預測二零零零零一的報告，修訂第三次港口發展策略檢討的結果。
  4. Based on the current pcf prediction, it is estimated that the first berth of the next container terminal ( i. e. ct 10 ) will be required towards the end of this decade

    根據今回港口貨運量預測的結果，估計約在未來十年之末期，本港會需要另一個新貨櫃碼頭（即10號貨櫃碼頭）的首個泊位。
  5. In chapter four, two modified protocols on qos in pwlan are proposed, which are based on dcf and point coordination function ( pcf ) of wlan, respectively

    本文針對無線局域網的兩個mac協議: dcf和點協調功能pcf （ pointcoordinationfunetion ） ，分別提出改進協議，以滿足公用無線局域網對qos的要求。
  6. The investigation of pcf emphasizes on the polling of pc

    對pcf的研究著重於pc的調度方面。
  7. The polling efficiency is calculated and the polling scheme is considered as key of the pcf implementations

    推導了pc的調度效率，分析指出調度演算法是影響調度效率的關鍵因素。
  8. Based on the requirement and target of the projects, firstly, pcf bragg grating are investigated theoretically and experimentally. moreover, the effects of filling high refractive index material ( nematic liquid crystal, nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ), farther, several novel pcfs are proposed and designed. lastly, we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser, which integrate all performances of broad - band tunable wavelength, uniform output power spectrum, high repeat frequency and high average power to together

    本論文選題于國家973 、 863以及國家自然科學基金等項目，結合課題的要求和主要目標，在對光子晶體光纖（ pcfs ）傳輸特性研究的基礎上，首先對光子晶體光纖光柵進行了理論和實驗研究;然後，採用平面波展開法和有限單元法分析了在光纖的空氣孔中填充高折射率液晶對光纖傳導機制和傳輸特性的影響，提出並設計了幾種新型光子晶體光纖;最後，提出並研製成功連續可調諧、輸出功率譜均衡的全光纖化、高功率包層泵浦鉺鐿共摻光纖激光器實驗樣機。
  9. Firstly, we study the photonic band structure of the pcf cladding with triangular and honeycomb air holes lattices. then the guided mechanisms of pcfs are demonstrated. the waveguide dispersion, leaky loss and effective modal area for both index - induce pcf and pbgf are presented

    首先對三角形、蜂窩形柵格空氣孔包層結構的光子能帶進行了研究，在此基礎上闡述了光子晶體光纖的傳導機制，對折射率引導和光子帶隙引導光子晶體光纖的波導色散、泄漏損耗和有效模場面積進行了研究。
  10. For the assessment of the future requirements for various cargo handling facilities, the " base case " of the pcf 200001 was adopted

    評估各種貨物處理設施日後的需求量時，我們採用了香港港口貨運量預測二零零零零一的基本增長情況。
  11. Pcf consists of three parts : preprocess, calculating kernel and post - processing

    Pcf按模塊化與集成化有機結合的思想進行開發。
  12. Splicing between single - mode fiber and pcf are theoretically and experimentally investigated. the fiber bragg grating is written in grapefruit pcf. the multi - wavelength resonances are observed in the grating, and theoretical analysis shows that this phenomenon is caused by the resonances between core modes and cladding modes

    建立了光子晶體光纖和普通光纖的熔接方法，在柚子形光子晶體光纖上寫制了布拉格光柵，觀察到多波長諧振現象，理論分析表明這是由於纖芯基模和包層模之間的諧振造成的。
  13. Moreover, the pcf functions of wlan reference model provided by opnet are validated and the polling scheme is simulated for research

    利用opnet提供的pcf模型，對調度演算法進行模擬分析，並對pcf進行功能驗證。
  14. Based on the projected distribution of port cargo to each of the cargo handling facilities and the assumed productivity of the facilities, the cargo volumes projected in the pcf 200001 are then translated into requirements for various port facilities, which include container terminals, mid - stream sites, river trade terminals and public cargo working areas

    根據每種貨物處理設施所處理不同種類貨物的推算，以及這些設施的貨物處理能力的假設，香港港口貨運量預測二零零零零一內所估計之貨物數量可轉化為各種港口設施的需求量；這些貨物處理設施計有貨櫃碼頭、中流作業用地、內河貨運碼頭和公眾貨物裝卸區。
  15. This release extends pcf to the z os command server, which will permit developers to write a single common application to manage both distributed and z os systems

    新版本將pcf擴展到z / os command server ，這樣一來，開發人員便可以編寫一個公共應用程序來同時管理分散式系統和z / os系統。
  16. A sample program provided in source format shows how the pcf messages can be formatted

    有一個示常式序（源代碼格式）展示了如何格式化pcf消息。
  17. Based on the analysis of hybrid coordination function ( hcf ) in wlan, a modified pcf in pwlan, mpcf, is propose

    在介紹和分析無線局域網的混合協調功能hef （ hybridcoordinationfunction ）的基礎上，提出基於pcf的公用無線局域網qos改進協議: mpcf 。
  18. The pcf findings will help to assess the demand for cargo handling facilities

    港口貨運量預測的數據會幫助評估貨物處理設施的需求。
  19. The pcf and pdsr are suggested to be carried out in 2003 so that the timing of the requirement for new container terminal development could be further assessed before a final decision is made on plan for new container terminal facilities

    我們並建議在二零零三年進行下一次的港口貨運量預測和港口發展策略檢討，以便在決定興建新貨櫃碼頭設施作出任何定案前，對新貨櫃碼頭發展的需求時間，作進一步評估。
  20. Main contents of this thesis include following parts : firstly the frame format and frame type in 802. 11b are summarized. two mac layer access methods : dcf ( distributed control function ) and pcf ( point control function ) are deeply analyzed. physical layer, management entity and security mechanism are generally narrated

    全文內容主要包括以下幾部分：第一部分總結了802 . 11b協議中的mac層幀結構和幀類型，較深入地分析了mac層的pcf （中心網控方式）和dcf （分散式接入方式）兩種接入方式，概述了物理層、管理實體和安全機制。
分享友人
分享到 Line

分享到臉書