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Search Results: 1 - 10 of 419372 matches for " <br>陈荣 "
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The Application of Artificial Neural Networks in Cloud Classification:Its State-of-the-art and Developing Trend

CHEN Weirong,<br>
遥感技术与应用 , 1997,
Abstract: The paper mainly introduced the fundamentals of artificial neural networks and the status quo of their applications in cloud classification.Based on the aforesaid introduction,the author discussed some problems which would be confronted when classifying cloud types using artificial neural networks and predicted its trend of development.

Chen Zhirong,<br>
第四纪研究 , 2006,
Abstract: 文章讨论了人类圈、智慧圈、人类世及其关系。作为独立地球圈层的人类圈是以人类为自然实体的地球圈层,它是由需求圈、技术圈和思维圈构成的统一整体,它的研究拓宽和加深了人们对地球以及地球科学概念的理解,对推动人地关系的协同共进有着重要的意义。智慧圈强调智力在现代地球演变中的巨大作用,这是重要的,但狭义智慧圈只是人类圈的一个构成部分,而广义智慧圈则是人类地球的一种可能的未来状态。人类世强调人类在地质和生态中的核心作用,这也是重要的,但作为新的地质时代,它是否能在科学上站得住脚,还需要进行论证。
Studies on the migration of cotton leafhopper Empoasca biguttula (Shiraki)
棉叶蝉(Empoasca biguttula Shiraki)迁飞的研究

CHEN Yongnian,LU Rongsheng,<br>永年,
生态学报 , 2001,
Abstract: 通过冬季田间调查和笼罩饲养、雌成虫卵巢解剖、发育积温和过冷却点等项测定,证实棉叶蝉Empaasca biguttula是迁飞性昆虫,据起飞行为和起飞日节律观察及飞翔力测定,及起飞与环境条件和虫体本身状况的关系、各地棉叶蝉始见日及突增日与天气关系的分析,提出:①棉叶蝉在湖南不能安全过冬,并基本上查明了在华南的主要越冬寄生。②起飞发生于一定季节,有一定日节律,具特定的起 行为,在成虫幼嫩期起飞,雌成虫在羽化后第2天为起飞高峰日。“迁飞型”较长,“居留型”却较短。光照强度、风速、温度及降雨等,对起飞有很大影响。③成虫有明显的异地同期突增现象,并与一定的天气条件相吻合。从此虫远距离迁移的天氯图分析表明,其迁入天气有2个类型:a.迁入Ⅰ型:迁入地区处在冷锋(静止锋)和切变线南部,也处在槽前西南气流中;b.迁入Ⅱ型:迁入地区正处在脊前、槽后的偏北气流中。
DNA Molecular Marker and Its Applications in Medical Germplasm Resources

Xu Rang,Chen Jun,<br>徐,
世界科学技术-中医药现代化 , 2006,
Abstract: This review discusses the basic principles and merits of major DNA molecular techniques used in studying medical germplasm resources, including RFLP, RAPD, AFLP, ISSR. It presents a general picture of recent molecular marker applications in identifying the germplasm resources, sorting out the genetic relationship, and assessing the genetic diversity,
The Minkowski Content of Uniform Cantor Set

Jiang Feng,Chen Shirong,<br>蒋锋,
数学物理学报(A辑) , 2007,
Abstract: In this paper,the authors study the Minkowski content of a uniform Cantor set and calculate its upper and lower Minkowski contents.Thus the authors see that its Minkowski content does not exist.
Risk Measure of FX Options Based on Delta-Gamma-Theta Model

CHEN Rong-da,<br>
系统工程理论与实践 , 2005,
Abstract: In this paper we introduce finance parameter: Delta, Gamma, Theta. And develop approximate expression of the change in the value of FX options into Delta-Gamma-Theta model. Then we use Monte Carlo approach and Cornish-Fisher approach to compute VaR value of portfolio of FX options. Moreover, we find the gained VaR value using Cornish-Fisher approach is near to the gained VaR value using Monte Carlo approach, and the Delta-Gamma-Theta Model using the two approaches is evidently better than the Delta-Normal model. However, the Cornish-Fisher approach is simple and quick in the process of computation, and the Monte Carlo approach is burdensome in the process of computation and occupies long time.
Syntactic Priming: Paradigm and Controversy in Language Comprehension

CHEN Qing-Rong,<br>
心理科学进展 , 2012,
Abstract: Repetition is a central phenomenon of behavior.In the language sciences,a ubiquitous form of such repetition is syntactic priming,and researchers have made extensive use of it to better understand how language is represented and processed.This paper provides an overview of the sentence types and paradigms employed to investigate the nature of syntactic priming:sentence-retelling picture-describing paradigm,sentence-completion paradigm,sentence-recall paradigm and visual-world eye-movement paradigm.In addition to examining the strength and weakness of these paradigms,the paper also points out two current controversies regarding syntactic priming in language comprehension:1) whether priming in sentence comprehension is strategic,semantic or syntactic;2) whether syntactic priming in comprehension is lexically driven or lexically independent.Finally,the paper suggests possible avenues for future research in this field.
Eyemovement Theories and SWIFT Model

Chen Qingrong,Deng Zhu,<br>,邓铸
心理科学进展 , 2006,
Abstract: With the development of eye movement,researchers have put forward some new models on the basis of many experiments,in which the SWIFT model is the most representative.These models are affected by the theory that is the guidance by attentional gradient.The SWIFT model has three principles:(1)lexical information processing is spatially distributed over an attentional window.(2)saccade timing is separated from saccade target selection.(3)saccade generation is an autonomous process with inhibition by foveal targets.The model has two parts:lexical processing and saccade programming.
The Data Transfer between Library Management System and Gate Controller

Shao Zhengrong Chen Chao,<br>邵正,
现代图书情报技术 , 2001,
Abstract: This article discussed the interface between library management system and gate controller. The data transfer technique is mentioned. The data structure of both databases are also given.
All Admissible Estimators of the function of mean matrix

DengQirong,Chen Jianbao,<br>邓起,建宝
系统科学与数学 , 1999,
Abstract: 对于多元正态线性模型Ynxm~N(Xθ,σ2∑V),在四种不同的可容许意义下,本文研究了SXθ的线性估计LY+D在一切估计类中的可容许性在适当条件下得到了充要条件,在一般情况给出了充分条件和必要条件.
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