1) delay constraint
延迟约束
1.
A multicast routing heuristic algorithm of delay constrained and minimal cost is proposed, oi which multicast tree is created with the lowest cost short routing, delay of routing is reduced by continuous adjusting branch in the tree based on the delay constraint, label technique is also used.
提出了一种满足延迟约束的最小费用多播路由启发式算法,算法使用最短费用路径生成多播树,根据延迟约束不断调整树中的分支减少路径延迟,还使用了标签技术。
2) deferred constraint
推迟约束
3) delay constraint
时延约束
1.
Algorithms of QoS routing with bandwidth and delay constraints based on traffic engineering;
基于业务量工程带宽和时延约束的QoS路由算法
2.
11n under delay constraint,the average data quantity of one transmission with aggregation under non-ideal channel condition(when transmission error exists) is derived.
为了在非理想信道和给定时延约束下提高IEEE802。
3.
This paper presents a new algorithm STBMR for multicast routing with delay constraint.
多播路由已有广泛的应用,但满足时延约束而代价最小的多播路由算法复杂性很高。
4) delay-constrained
时延约束
1.
Study on the delay-constrained P2MP model in VPLS networks;
VPLS中具有时延约束的点到多点分组转发模型研究
2.
Study on the Delay-constrained Multicast Issue in VPLS Networks;
VPLS中具有时延约束机制的组播问题研究
3.
A Heuristic Algorithm for Delay-constrained Least-cost Unicast Routing;
一种时延约束最小代价路由选择算法
6) constrain downward
约束延拓
补充资料:大剂量增强后延迟CT
大剂量增强后延迟CT
CT检查方法之一。用于检查肝脏占位性病变的增强CT技术。使用总量为60g碘的经尿路排泄的对比剂,经静脉注入后延迟4~6小时后进行CT扫描。该法不同于一般在增强后5~15分钟的延迟扫描。主要原理是:注入的对比剂中约有1%~2%将滞留于正常肝实质内,最后经胆道排泄,从而使正常肝组织的密度值比平扫时增高约20HU,而肝内病灶区内无对比剂滞留,表现为低密度,形成对比。应注意的是此时肝内血管亦无对比剂滞留而呈低密度,因此需结合增强CT(包括普通增强、动态团注增强或血管造影CT)比较判断。该法可使肝内小占位性病灶的检出率提高约20%~30%。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条