查询词典 decision node

By introducing safe-inserted-node and safe-deleted-node concept into the structure,the performance of tree creation is reenforced.

同时，给出了基于该结构的特征向量插入算法。

By introducing safe-inserted-node and safe-deleted-node concept into the structure, the performance of tree creation is reenforced. The algorithms are also given for the creation of ER-Tree. The empirical test results show that (1) the tree creation algorithm proposed is about 10 times faster than R*-Tree.

Rivest，Cleary以及 Arya和 Mount在假设点集为均匀分布的情况下分析了这类算法的平均复杂度为 O（2〕目前最好的静态索引结构和检索算法是 Arya和 Mountl'在Friedman，Bentley和Finkel等人工作的基础上提出来的。

If the node determines the network is busy, the node will wait a random amount of time before retrying.

假如节点确认网路是忙线中的，这节点将等待一随机的时间量再重试

Key contains the single character and the value has the actual value of the node. The actual key of the node will be determined by suffixing the single character to its parent's key.

Node 类有两个属性 Key 和 Value ， Key 是一个单个字符，节点类真正的键值是以其 Key 属性为后缀，然后依次加上其父节点的 Key 属性。

Each sensor node synchronizes its time by the information exchange between the cluster head node and itself.

各传感器节点可以利用和簇头之间的信息交换实现时间的同步。

Effects : Unlinks the leftmost node from the tree, and updates the header link to the new leftmost node.

作用： 断开树的最左节点的链接并将头节点链接到新的最左节点。

From the point of view of structure,bamboo cell wall ratio,amount of bundle per unit area,fraction of bundle sheath,fraction of vessel increase from the root to the top of the bamboo,while fractionof parenchyma.Single bundle sheath area decreases with the increase of height.Fiber length,fiber width and vessel length increase from the root to the top andget theirs maximum value at the length of 17th node to 23rd node and thendecrease.Fiber length and width ratio slightly decreases while vessel widthincreases with the increase of height.

从构造角度来说，竹材胞壁率、单位面积维管束个数、纤维束比量、输导组织比量从基部到到梢部随着高度增加而增加，而薄壁组织比量、单个维管束纤维束面积随着高度增加而减小；纤维长度、纤维宽度、导管长度从基部到梢部随着高度的增加而增加，在第17竹节到第23竹节达到最大值，而后下降，纤维长宽比随着高度的增加而缓慢下降，导管宽度随着高度增加而一直增加。

Firstly the elastic stage of the cutting tool and workpiece in rectangular element is modeled and the relationship between the element node force and element node displacement also deduced.

首先选用矩形单元对刀具和工件弹性阶段进行有限元建模，得出其单元节点力和节点位移之间的关系，然后利用普朗特路斯方程，推导工件材料塑性变形时单元节点力和节点位移之间的关系，并指出金属由弹性变形到塑性变形时其单元刚度矩阵变化的规律，从而为实现金属切削过程的数值模拟提供可靠的理论基础。

The results show that space finite analysis results are close to test ones, bottom chords suffer axial force and large in-plane bending, and the max stress is nearby each middle internode. The max stress of node crossbeams occurs in No.2 bottom flange, and that of internode crossbeams happens in ones lying in the middle of every internode. The concrete slab is in tension at the longitudinal direction, and also suffers bent at vertical loads. The degree of completely-composite model taking part in the combined actions is about 55%, while that of semi-composite model is 42%-43%. The combination of concrete slab and bottom chord increases the degree of floor system taking part in the combined actions, lightens the burden of bottom chord, and reduces out-of-plane bending of node crossbeams especially the ones near bridgehead. Stress and displacement of main truss can be evaluated by a equivalent plane rigid frame in preliminary design, and effective stiffness of bottom chords are composed of original ones and concrete slab, and the concentrated load from deck can be translated into uniform load.

研究结果表明：空间有限元分析结果与试验结果较吻合；下弦杆受到轴向拉力和较大的面内弯矩作用，各节间最大应力出现在节间中点附近；节点横梁最大应力发生在横梁2的下翼缘，节间横梁最大应力发生在位于端节间中部的小横梁上；混凝土板顺桥向整体受拉，并在竖向集中荷载作用下产生弯曲变形；全结合模型大部分节间内的桥面板参与主桁共同作用的程度为55%左右，半结合模型桥面板的参与程度为42%~43%；桥面板与下弦杆结合能够增加桥面板的参与程度，减轻下弦杆荷载，减少节点横梁尤其是靠近桥头横梁的面外弯曲；对桥梁进行初步设计时，主桁杆件的位移与内力可按照1个等效的平面刚架计算，下弦杆的等效刚度由原下弦杆截面和混凝土桥面板截面组合而成，桥面荷载可转化为均布荷载施加。

In the core area of the node crossed by two diagrid columns, the node section area is far smaller than the sum of two columns' section areas.

摘要］国外某工程，外部网筒由圆柱斜向交叉与环梁编织而成，外网筒柱节点核心面积相比柱截面面积大幅减小，承载力不足，经有限元分析，汇交节点应力状态复杂，阴角区存在明显的应力集中，通过弹性、弹塑性有限元分析，找出了应力集中的原因，进而有针对性地提出了采用钢板凳进行加强的措施，取得了较好的效果。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。