upstream channel 中文意思是什麼

upstream channel 解釋
上遊河槽
  • upstream : adv. 向上游，溯流。adj. 1. 溯流而上的。2. （石油工業等）上游的，和石油的勘探、開采及輸送到起運港口有關的〈石油工業此後的提煉等過程則稱為下游（downstream）產業〉。
  • channel : n 1 水路，水道，渠，溝；海峽；河床，河底。2 （柱等的）槽，凹縫；【機械工程】槽鐵，凹形鐵。3 〈比...
  1. By computing the water level and sedimentation processes with and without considering the extension of flow path, the results show that the effect of the river mouth path extension on the sedimentation of the trail channel is a longer period of evolution for several years or even over 10 years, and furthermore, the effect becomes weaker and weaker gradually from downstream to upstream in general

    通過比較考慮和不考慮入海流路淤積延伸2種情況的計算水位和淤積量的變化得出：單一的河口延伸對下遊河道淤積的影響過程是一個相對較長的過程，需要幾年、甚至十幾年的發展，影響程度自下游到上游逐漸減弱。
  2. The generating and controlling system of the upstream runoff, downstream tidal current and rotational flow in the physical model test for the yangtze river estuary deep channel training project is introduced

    摘要介紹了長江口深水航道整治工程物理模型試驗中配置的上、下游潮汐及旋轉流發生和控制系統。
  3. The research of bend channel of reach guide - lijia flume from longyang flume to lijia flume in upstream of the yellow river is proceeded to present rules of feasibility analysis for navigation between the flumes and the riverbed stability

    摘要對黃河上游龍羊峽至李家峽間的貴德李家峽河段的蜿蜒河道進行了研究，為蓄水兩壩間的通航和河床穩定性問題提供可行性分析依據。
  4. The kai tak nullah is also a storm channel situated upstream of the old kai tak airport in south - east kowloon. its catchment includes some densely populated areas such as san po kong, diamond hill, tsz wan shan, wong tai sin and kowloon city

    啟德明渠正是一條位於九東南部舊啟德機場上游的雨水渠，它的集水區涵蓋多個人口稠密地區，包括新蒲崗鉆石山慈雲山黃大仙和九城。
  5. The resolution scheme for the noise interference and the congestion of hfc upstream channel

    網上行通道噪聲干擾與通道擁塞的解決方案
  6. Based on analyzing the upstream channel ' s description in the docsis protocol, the author profoundly explored the upstream channel ' s bandwidth allocation algorithm in the hfc network

    在對docsis協議中上行通道描述部分的分析基礎上，對上行通道的帶寬分配演算法進行了深入的研究。
  7. Analysis of separation levee of upstream navigation channel of tgp ' s temporary shiplock

    三峽臨時船閘上游航道隔流堤填築沉降分析
  8. As media - shared network, apon needs some form of media access control ( mac ) protocol to arbitrate the upstream channel among terminations, and avoid collisions

    作為介質共享的樹形網路， apon需要介質訪問控制協議（ mac ）協調各終端對上行通道的訪問，避免沖突。
  9. Upstream channels cover in 5 65mhz, which is a part of the bandwidth of high frequency （ hf ） and very high frequency （ vhf ）. it is liable to incur noises ingress onto the band. since hfc system has the tree - and - branch topology between the fiber - node and subscriber units, subscriber units belonging to one fiber - node share the same upstream channel, forming the " noise funneling " effect

    上行頻帶位於5 - 65mhz之間，這一頻帶為高頻（ hf ）和甚高頻（ vhf ）的一部分，此頻帶易受噪聲干擾；此外，由於從光節點到用戶端為樹型分支結構，同一光節點的多個用戶共享同一通道，形成了漏斗效應。
  10. The downstream channel is a point - to - multipoint broadcasting channel with a wider bandwidth, while the upstream one is a multipoint - to - point share medium with a narrow bandwidth

    Hfc網路下行通道採用一點對多點的廣播方式，用戶共享下行資源實現比較簡單。上行通道是一個多點對一點的媒體共享通道。
  11. The cellular phone distribution channel is characterized as a linear pattern, starting from upstream manufacturers, through intermediary distributors and retailers, and finally reaching end users

    手機分銷渠道發展到今天，已形成廠家、分銷商、零售商到終端用戶的線性分銷模式。
  12. So the upstream channel has the character of narrower bandwidth and bigger noise. this character has a big influence on data transmission on the upstream channels

    因此，上行通道具有頻帶窄，噪聲大的特徵，這一特徵對上行通道的數據傳輸具有極大的影響。
  13. Therefore to solve the noises in the upstream channel and to share the sources of the upstream channels becomes one of the key technologies for hfc system to become a multimedia communication platform

    因此，解決上行通道的噪聲問題和上行資源共享是hfc網路能否成為一個多媒體業務通信平臺的關鍵技術之一。
  14. The new scheme has a lot of advantages such as resolving " the funnel noise " in the upstream channel, high speed and low cost of building, which is likely to become an important broadband access network

    這種新型的hfc寬帶接入網具有抗「漏斗噪聲」的能力強、傳輸速率高及建設費用低等優點，有可能發展成為一種重要的寬帶接入網。
  15. While scouring appeared at the left bank of upstream channel with distance between 10 to 20 meters for dam no. 4, serious scouring was also discovered at the left bank of upstream channel with distance between 5 to 10 meters for dam no. 3

    當四號壩壩體拆除缺口初期，以四號壩上游左岸10至20公尺范圍內與三號壩上游左岸5至10公尺沖刷情況較嚴重。
  16. Due to its particular mixed topology of star and branch as well as its asymmetric upstream and downstream, the upstream channel ' s bandwidth allocation algorithm in hfc network has been a research hotspot domestic and abroad

    由於hfc網路特有的星型與樹枝型相混合的拓撲結構以及它的上下行非對稱特性，使得hfc網路中上行帶寬分配演算法的研究成為了國際國內研究的熱點。
  17. Lum and co - workers identified h2o2 as an upstream signal that leads to no production. they also found that the h2o2 induced no production was mediated via calcium ion flux, as it was blocked in the presence of a calcium ion channel blocker, verapamil

    Lum和同事發現h _ 2o _ 2作為上游信號誘導no的產生，他們還發現aba誘導的no產生是經由鈣離子介導的，因為它可以被鈣離子通道阻斷劑異搏定（ verapamil ）所抑制。
  18. To increase the slot throughput and shorten the network ' s delay, the author analyzed all kinds of existent bandwidth allocation algorithm. according to the theoretical deduction, the author concluded the relation between the slot throughput, the number of arrived request packets and the number of allocated contention slots. thereout, he put forward an upstream channel bandwidth allocation algorithm based on the estimation of the request packet ' s arrival ratio ( )

    論文以增大時隙吞吐量、減小網路時延為目標，分析了前人提出的各種演算法，在理論推導的基礎上，得出了時隙吞吐量s和到達網路的請求分組數及分配的競爭時隙數之間的關系，並由此提出了一種基於對請求分組到達率估值進行帶寬分配的演算法。
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