head node 中文意思是什麼
head node
解釋
頭節點-
Cable operators also install fiber optic cables from the head end to a fiber distribution node
有線電視運營商也須把光纜從頭端（主設備）接到光纜分配節點。 -
In the paper, the protocol adopt special route optimize algorithm and tdma time slot assigning algorithm, make node enter low consumption or sleep state in order to reduce the consumption ; aiming at choice the mechanism of cluster head, multi - hop routing and the mechanism of mac, the existing leach protocol is improved
本文的網路協議是採用特殊的路由優化演算法和tdma時隙分配演算法，使節點進入低功耗或睡眠狀態以降低功耗。協議主要在簇頭的選擇機制、多跳路由、 mac層通信機制等方面，對已有的leach協議進行了改進。 -
The innovations of this thesis can be summarized into three points. firstly, the average relative velocity is introducd into a novel adptive weighted clustering algorithm as one important parameter of weight, then it increases the stability and self - adaptability of cluster head. secondly, a new approach to calculating weight is suggested by integrating subjective and objective factors. it is verified by comparison with other approaches to selecting weight. thus the velocity of weight responding to the changes of network topology is increased. finally, using a som neural network to create a classifying model enables every node to learn to identify by itself the role in manet
本文的創新點有三個:首先本文在wca和aow分簇演算法的基礎上，引入了平均相對移動速度作為權值重要的參數，提出了一種新的基於權值的自適應分簇演算法，提高了簇頭在移動中的穩定性和自適應性;其次，提出了利用主客觀綜合賦權法確定權重的權值計算方法，通過與其他權重選擇方法比較，網路結構變化的權值響應速度得到了改進;最後，論文利用自組織特徵映射神經網路建立分類模型，使得網路中的節點可以自學習地確定簇中角色。 -
The specific sonographic signs of testicular appendage torsion were that unequal hyperechoic node with no blood flow was found between or beside testicle and head of epididymis as well as the blood flow was slight increased in the testicle and epididymis
睪丸附件扭轉超聲表現為睪丸與附睪頭之間或睪丸旁不均質高回聲結節及睪丸、附睪內血運輕度增多。 -
It is more accurate than traditional method at the aspect of calculating head loss, pipe flow and node pressure of hydrant. this mathematic model can also be used in the inside and outside of water supply piping calculation and it is excel hardy cross - piping calculation
該方法在計算水頭損失、管段流量、消火栓節點壓力等方面比傳統方法要更加準確，也可被借鑒到室內或室外的給水管網計算，並優于常見的哈代-克羅斯管網平差方法。 -
Because bad weather ? thick fog, mainly ? can severely curtail the reach of these line - of - sight devices, each optical transceiver node, or link head, can be set up to communicate with several nearby nodes in a network arrangement
因為壞天氣（主要是濃霧）會大幅縮短這些視線設備的傳輸距離，因此每個光收發節點（或稱連結端）的設立地點，必須可以和網路配置里的多個鄰近節點進行溝通。 -
Because of the sliding at the loading node, this special loading condition can be simulated by contact between the loading head and leaf spring
並且採用加載頭和簧片間的接觸行為能較準確的模擬出加載點存在著滑移狀況的這種特殊的加載形式。
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