【摘 要】
：
In using the PGCEVD (Poisson-Gumbel Compound Extreme Value Distribution) model to calculate return values of typhoon wave height,the quantitative selection of t
【机 构】
：
School of Civil Engineering and Transportation
论文部分内容阅读
In using the PGCEVD (Poisson-Gumbel Compound Extreme Value Distribution) model to calculate return values of typhoon wave height,the quantitative selection of the threshold has blocked its application.By analyzing the principle of the threshold selection of PGCEVD model and in combination of the change point statistical methods,this paper proposes a new method for quantitative calculation of the threshold in PGCEVD model.Eleven samples from five engineering points in several coastal waters of Guangdong and Hainan,China,are calculated and analyzed by using PGCEVD model and the traditional Pearson type Ⅲ distribution (P-Ⅲ) model,respectively.By comparing the results of the two models,it is shown that the new method of selecting the optimal threshold is feasible.PGCEVD model has more stable results than that of P-Ⅲ model and can be used for the return wave height in every direction.
其他文献
Steel jacket-type platforms are the common kind of the offshore structures and health monitoring is an important issue in their safety assessment.In the present
Tidal flow is a periodic movement of unsteady and non-uniform,which has acceleration and deceleration process obviously,especially in coastal shallow waters.Man
There lies a close relationship between the seabed destruction and the distribution of pore water pressure under the action of breaking wave.The experiments wer
提出了复杂采空区危险程度辨识的贝叶斯判别方法.基于多元判别分析理论,将贝叶斯判别方法应用于金属矿山采空区危险程度的预测判别问题中,建立了相应的贝叶斯判别分析模型.该
Ultrafine Y(OH)3 nanoparticles were successfully deposited from an additive-free 0.005 mol/L YCl3 low-temperature bath on the steel cathode at the current densi
In order to study the propulsion mechanism of the bionic flapping hydrofoil (BFH),a 2-DoF (heave and pitch)motion model is formulated.The hydrodynamic performan
This paper presents a numerical study on the hydrodynamic behaviours of a round buoyant jet under the effect of JONSWAP random waves.A three-dimensional large e
This paper is aimed at the whole Bohai Sea,as the complement and improvement of wave characteristics and extreme parameters.Wave fields were simulated in the Bo
以壳聚糖为添加剂,采用无水碳酸钠与氯化钙共沉淀反应制备单分散碳酸钙微粒.利用扫描电镜(SEM),X射线粉末衍射(XRD),傅里叶变换红外吸收光谱(FTIR),热重差热分析(TG-DSC)等方
When studying the harbor water tranquility,cases are often confronted as that the verification point is not located on the generation line or that the angle bet