This paper firstly made a brief review about Catastrophism Gradualismand Neocatastrophism in Geology and then did some researcles on event stratigraphy s formation, development, therotical essence and its importance in earth sciences.
根据近年来有关研究新进展，概括地评述了地质灾变论、渐变论、新灾变论及事件地层学的形成、发展、理论实质及其在地球科学理论与实践中的重大现实意义。
The process of analyzing the buckling of elastic structures by catastrophe theoryis studied in this paper.
就如何利用灾变理论分析弹性结构的屈曲问题作了初步探讨，利用灾变理论对有某些缺陷（如荷载偏心杆件初弯扭横向作用力等）的结构屈曲性质和特性进行了较为深入的探讨，力图为结构稳定的更深层次研究开辟一条新路。
As a mathematical tool of analyzing nonlinear systems in the case of the dynamic characteristic jumping, catastrophe theory has been used to assess the steady state stability,transient stability,and voltage stability in power systems,including simple power systems[1,2.
灾变理论作为分析非线性系统动态特性发生跃变的一种数学工具，已被用于电力系统静态稳定、暂态稳定和电压稳定分析。
This paper firstly made a brief review about Catastrophism Gradualismand Neocatastrophism in Geology and then did some researcles on event stratigraphy s formation, development, therotical essence and its importance in earth sciences.
根据近年来有关研究新进展，概括地评述了地质灾变论、渐变论、新灾变论及事件地层学的形成、发展、理论实质及其在地球科学理论与实践中的重大现实意义。
It applied bifurcation approach of elementary catastrophe theory to find out control parameters′ bifurcation values,which decide stability of power systems,further,stability region can be obtained.
它运用初等灾变理论中分岔的概念找出决定电力系统稳定的控制参数的分岔值，从而确定了系统的稳定区域，由稳定区域即可进行系统的稳定判断。
The most popular alternative to catastrophism is the gradualistic approach.
最著名的灾变论的对立理论就是渐变论。
The second problem posed when considering catastrophism is the earth's past impact history.
当用灾变论来解释过去的地球被撞击历史时，第二个问题就出现了。
Another Possibility of Bi-Axial Operation:A Response to Zhao Yiheng’s Idea of Semiotic Disaster;
双轴运作的另一种可能性——对赵毅衡教授“符号灾变论”的一种回应
The cold dark anaerobic environment that catastrophists would like to believe killed only the dinosaurs would probably have wiped out all life on earth within three to five years at most.
灾变论者认为只能杀死恐龙的寒冷黑暗缺氧的环境会最多在3－5年内消灭所有的生物。
Study on Self-Organized Criticality、Fractal and Theory of Disasters;
自组织临界性、分形及灾变理论研究
Discourses on Celestial Omens and Disastrous Occurrences in the Political Context of the Northern Song;
北宋政治变革中的“天文灾异”论说
In itself this was not a catastrophic turn.
就这件事本身而论，还不算是一次灾难性的变化。
No matter how small a fault is, it is possible to change into a great disaster.
无论是多小的失误都有可能演变成巨大灾难。
The Temporal and Spacial Prediction Theoretical Model of Landslides Catastrophe Process and Its Application;
滑坡灾变过程时空预测理论模型及应用
On the Causes of Calamities and Changes of Social Mechanism in Early Yuan Dynasty;
论元初灾害的成因机制及其社会组织的变动
Assessment of Pollution Disaster Risk in Near-shore Coastal Waters Based on Catastrophe Theory
基于突变理论的近岸海域环境灾害风险评价
Assessment model of drought and flood disasters with variable fuzzy set theory
可变模糊集理论在旱涝灾害评价中的应用
Trend Analysis of Drought and Waterlogging in Kaifeng Based on Gray Catastrophe Theory
基于灰色灾变理论的开封旱涝趋势分析
The Hypothesis of Calamity Changed Evolution of Aerolite Impact
陨击灾变进化论假说——一种新进化论的提出及其迄今成果
Account of Pest Plague,Wind Disaster,Hail Disaster,Freezing,Earthquake,and Epidemic Disease in Ancient Hunan;
古代湖南虫灾、风灾、雹灾、冰冻、地震、疫灾简论
Application of Gray System Theory on Disastrous Year Forecast of Winter Strong Low Temperature and Frost
灰色系统理论在冬季强低温霜冻灾变年份预测中的应用
An Introduction to Floods and Droughts and Changes of Agro-farming in Jianghuai of China in Ming and Qing Dynasties;
试论明清江淮地区的水旱灾害与农业耕作的变迁
A Study on the Construction of a Society in Harmony with a Friendly Relationship Between Mankind and Earth--A Case in the Cure of the Karst Mountainous Erosive Areas;
试论人地关系和谐社会的建构——以喀斯特山区石漠化灾变救治为例