查询词典 branch and bound method

Based on a lot of experiment results, a conclusion is drawn: comparing with other factors, the performance of branch handling strategy is the key limits of processor to exploit the instruction level parallelism existed in nonscientific code, cache miss have severe effect on superscalar processor's performance when it runs scientific code. Second, in order to reduce the branch penalty and improve the performance of superscalar processor, a new branch handling strategy—a classification based hierarchical branch handling strategy, CHBHS is proposed. It first expands the traditional processor architecture to support multiple condition code, conditional execution and Mbranch instruction, as a result, compiler can reduce the number of static conditional branch when the code is generated. Then, CHBHS tries to use the best suitable mechanism to deal with different branch base on their different behavior. CHBHS can predict the target address of unconditional branch, subroutine call and conditional branch by buffering their target address in branch target buffer, a newly proposed high efficient return address stack is used to reduce the penalty of subroutine return instruction, a new Counter Register Stack is also proposed to reduce the penalty of loop-closing branch to zero, and dynamic branch predictor is incorporate with branch target buffer to predict the outcome of conditional branch.

基于上述结论，为了尽量消除转移指令对处理器开发指令级并行性能力的影响，进一步提高处理器性能，在详尽分析目前已存在的转移处理策略的特点与局限性的基础上，首次提出了一种新的转移处理策略即基于分类的层次转移处理策略CHBHS(Classification Based Hierarchical Branch Handling Strategy)，它首先通过扩展传统的体系结构，支持多条件码、条件式执行及多分支转移技术，以使编译程序在进行代码生成时可尽量少生成条件转移指令，从而减少静态条件转移指令的数目；其次，基于不同的转移指令的行为不同这一事实，提出了对不同的转移指令采用不同的机制进行处理的思想，即对无条件转移指令和函数调用指令以及条件转移指令的目标地址，采用转移目标缓冲器来预测，对于函数返回指令，采用所提出一种的高效返回地址栈来预测其目标地址，对于大多数循环控制转移指令，采用所提出的Counter Register Stack来将其所可能带来的损失减少为0，对于其他的条件转移指令采用动态预测机制来预测其方向。

Analytic branch amount and branch angle are right produce can influence discovery: Mi Qian is planted increase of number of branch of? of You of that a pavilion or house on a terrace of joyous ǖ of Сざ sew, produce can reduce somewhat, think branch well should not seek overmuch branch amount, with 2~3 branch is advisable; branch angle increases, the yield of much branch well also can increase, but addition extent decrescent.

分析分支数目和分支角度对产能的影响发现：在总分支长度一定的情况下，分支数目增多，产能略有降低，认为分支井不应追求过多的分支数目，以2~3个分支为宜；分支角度增大，多分支井的产能也增大，但增加的幅度变小。

Applying the De Caen"s inequality of sum of the squares of the degree and Cauchy"s inequality, we obtain a strict lower bound and a strict upper bound of the largest Laplace eigenvalues only in terms of vertex number of a unicycle graph. Applying the Laplace matrix theorem of trees, we obtain an upper bound of the second smallest Laplace eigenvalues of a unicycle. Extremal graph whose second smallest Laplace eigenvalues reach the obtained upper bound is determined. We also obtain an upper bound of the second largest Laplace eigenvalues in terms of vertex number of the largest connected branch of unicycle graph, and obtain a theoretical method to calculate the second largest Laplace eigenvalues of unicycle graph. We obtain an upper bound of any Laplace eigenvalues in terms of vertex number of a unicycle graph. We also obtain the distribution of Laplace eigenvalues in the inter [0,n] in terms of the matching number.

本文得到了以下几个方面的结果： 1、利用图度平方和的De Caen不等式和Cauchy不等式给出单圈图的最大Laplace特征值仅依赖于顶点数的严格的上下界；利用树的Laplace理论给出了单圈图次小Laplace特征值的一个上界，并刻画了达到该上界的极图；利用子图的连通分支的顶点个数给出了单圈图次大Laplace特征值的一个上界，并给出了单圈图次大Laplace特征值一个理论上的一个求法；利用单圈图的阶数给出了其一般Laplace特征值的一个上界；利用单圈图的匹配数给出其Laplace矩阵谱在区间[0，n]上的分布情况。

Next, after analyzing the nets′relationship in three layer channel routing, setting up the objective function toward channel area minimization, we propose some new terms, for example, the withstand bound columns, valid complete cover net sets, TRACK valid routing, etc.. The conceptions and natures of static bound of nets, dynamic bound of unrouted net set and the lower bound value of the horizontal tracks are discussed; and the methods of calculating static bound, dynamic bound and lower bound are put forward.

文章接着分析了线网在三层通道区布线中的相互关系，为了以完成布线所需通道区面积最小化为目标解决三层通道区布线问题，提出了柱界列、完全有效覆盖线网集、TRACK有效布线等一些新的概念，讨论了三层通道区布线问题中线网定界、未布线网集动界和水平通道数Lower-Bound等概念和它们的性质，给出了定界、动界、Lower-Bound值的计算方法。

The honeybee various types interview flowers and the mouth apparatus length has the close relation: For example the digger wasp branch, the bee branch, is divided the flowers which the tongue bee branch and so on the mouth apparatus short type interview rose families, the mustard family, the umbelliferae, the buttercup branch opens; But leaf-cutter branch, strip bee branch and honeybee branch type because the mouth apparatus are long, then interview leguminosae, orthodon and so on deep floral tube flowers.

蜜蜂各种类采访的花朵与口器的长短有密切关系：例如隧蜂科、地蜂科、分舌蜂科等口器较短的种类采访蔷薇科、十字花科、伞形科、毛茛科开放的花朵；而切叶蜂科、条蜂科和蜜蜂科的种类由于口器较长，则采访豆科、唇形科等具深花管的花朵。

The distribution of branch angle was corelated to DINC of branch,the branch angle distributed in upper layer of canopy were generally small and with DINC increase the branch length of middle layer of canopy began to proglong,simultaneously,the weight of branch increased with branch diameter and length,hence,the branch angle of origin increased obviously and took the majority proportion.

着枝角的分布与着枝深度有密切的关系，着枝角度在树冠的上层时一般都较小，而随着树冠深度的增加，中层的枝条的枝长开始增大，枝条的重量随着基径和枝长在增大，着枝角度会明显增大，因此在这个范围内的分布最广，占了大多数。

The company also has sales branch, high voltage sodium light branch, illumination research institute, metal halide light branch, lights and lantern branch, light pole branch, ballast branch, trigger branch, illuminating engineering design room and professional illuminating construction team.

下设销售分公司，高压钠灯分厂，照明系统研究所，金属卤化物灯分厂，灯具分厂，灯杆分厂，镇流器分厂，触发器分厂，照明工程设计室，专业化照明施工队。

Branch, knife No. 700 Branch. Go out celestial being of feather country north prefecture confiscate warrior of No. 250 Branch, waist one hundred sheetses of No. 2,730 Branch, spear No. 336 Branch, firelock No. 26 Branch, bend 76, first 12, head 5 of tool instrument.

外出羽国仙北郡则没收武士刀二百五十支、腰刀二千七百三十支、长枪三百三十六支、火枪二十六支、弓七十六把、甲十二具、头械五顶。

The results show that 42.86% topsoil samples are polluted by Cadmium, soil synthesis pollution index is moderate, Cadmium pollution degree of topsoil correlate with the environment of sampling sites. The results also show that exchangeable Cd, carbonate-bound Cd, organic-bound Cd and residual Cd are found in all soil samples except for Fe-Mn oxide-bound Cd. Furthermore, the concentration of exchangeable Cd and carbonate-bound Cd, both which have high biological validity, is high. Humus has a certain correlation with exchangeable Cd, organic-bound Cd and residual Cd, and has no obvious correlation with other chemical speciations. Any chemical speciation of Cd has no obvious correlation with pH and total Fe of soil samples. Cadmium in topsoil can be eluviated by acid solution, the quantity of Cadmium eluviated by redistilled water is little. With the rise of pH of eluviating solution, eluviated Cadmium quantity decrease. For the same soil sample, the lower pH value of eluviating solution is, the more fast the Cadmium is eluviated, and the more thequantity of Cadmium is eluviated.

研究结果表明：成都市表生土壤样中有42.86%受镉污染，镉综合污染水平达中度污染，成都市表生土壤镉污染程度与采样点周围环境表现出一定的相关性；除铁锰氧化物结合态镉在部分土壤样中未检出外，所有土壤样均含有可交换态镉、碳酸盐结合态镉、有机结合态镉、残留态镉，且生物有效性较高的可交换态镉和碳酸盐结合态镉占总镉量比例较高；成都市表生土壤中的腐殖质与可交换态镉、有机结合态镉、残留态镉有一定相关性，与碳酸盐结合态镉、铁锰氧化物结合态镉相关性不显著；各形态镉与土壤pH值和全铁的相关性均不显著；土壤中的镉可被酸溶液淋出，重蒸馏水淋出镉量十分微小；随着淋滤液pH值的升高，土壤样的镉淋出量下降，且0～5小时时段的镉淋出量占镉总淋出量比例下降，5～30小时时段的镉淋出量占镉总淋出量的比例上升，对同一土壤样而言，酸度大的淋滤液比酸度小的淋滤液淋出镉速度更快，淋出镉量更大。

Results: The suprascapular nerve not only has its starting point and entering-muscle points, but also has two limit-points, it has turn-angle about 50° at spinoglenoid notch, supraspinatus muscle branch 44, infra-spinatus muscle branch 44, upper articular branch 42, lower articular branch 53, and sensory branch 37. The branches innervate supraspinatus muscle、infraspinatus muscle and the shoulder joint.

结果：肩胛上神经行程迂曲，有起点、入肌点两个固定点，另有肩胛上孔、肩胛下孔两个约束点，在冈盂切迹处形成大约50°左右的转折角，发出冈上肌支44支、冈下肌支44支、上关节支42支、下关节支53支、感觉支37支，分布于冈上肌、冈下肌和肩关节等处。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。