1) crowd
[英][kraʊd] [美][kraud]
丛集性
1.
ARCH modelreflects the special characteristics of stochastic process: the variance changes with the time changing and the variance is crowd together and fluctuated.
ARCH模型反映了随机过程的一种特性:即方差随时间变化而变化,且具有丛集性、波动 性。
2.
Autoregressive Conditional Heteroscedastic model is the newly developed time series model, which reflects the special characteristics of stochastic process:the variance changes with the time changing and the variance is crowd together and fluctuated.
自回归条件异方差（ＡＲＣＨ）模型是近年来新发展起来的时间序列模型，它反映了随机过程的一种特殊特性：即方差随时间变化而变化，且具有丛集性、波动性。
2) Earthquake clustering characteristic
丛集特性
3) cluster headache
丛集性头痛
1.
54 cases suffered cluster headache (Horton syndrome) were treated with Xuefuzhuyu decoction.
采用血府逐瘀汤治疗丛集性头痛,也称Horton综合征,共54例,15d为1疗程。
2.
To examine the changes of brain activity and functional correlations during spontaneous cluster headache attack as compared with during remission in the cluster period of patients with cluster headache by using resting-state functional magnetic resonance imaging(fMRI).
利用静息态fMRI技术分析丛集性头痛患者丛集期内头痛自发发作时脑活动的变化以及全脑与感兴趣区之间的功能联系,以了解丛集性头痛的疼痛发生机制。
4) Time and space clustering of earthquekes
地震时空丛集性
5) Clustering
[英]['klʌstə] [美]['klʌstɚ]
丛集
1.
Time-Clustering Properties in Radiation Event Sequences of Cloud Flash;
云闪辐射脉冲序列的丛集特征
2.
Clustering Characteristics of Spatial-temporal Distribution of Earthquakes in Different Tectonic Regions;
不同构造环境的地震活动丛集特征研究
补充资料：丛集性头痛
丛集性头痛
cluster headache
一种血管性头痛。发作突然，以一侧眶周疼痛为主，呈搏动性或刀割样剧痛，并向附近和对侧扩延，伴痛侧鼻阻、流泪、结膜充血、流涕、少数恶心、呕吐、畏光等。每日定时发作，每次持续1～2小时，数天或数周后自行停止，相隔数周至数年后可再次发作。病因不明，男性多见，可有偏头痛家族史，少数病例与颅脑外伤、颈椎病变、变态反应、鼻窦感染有关。本病可由组胺诱发，所以又称为组胺性头痛。组织脱敏疗法有一定疗效，但与组胺无特定关系。病因及对症治疗，或强的松顿服连续3天，可能有效。
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