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- normal random wave 正态随机波浪
- Regions that are untouched by normal random changes typically are important ones, and thus are conserved by evolution. 这些区域并没有发生随机变化,因此被进化完整地保留了下来。
- The rolling motion of an unstabilized ship and a stabilized ship equipped with fin stabilizers has been predicted by use of a random wave model. 介绍了能量等分法建立随机海浪模型的方法,并利用所建立的海浪模型对未减摇船舶横摇运动和安装减摇鳍后船舶横摇运动进行了预报。
- Interactions between pier groups in random wave are predicted well by numerical model, although there exist some difference in maximum wave cre. 本文对随机波浪作用下某实际群墩码头结构的相互影响进行了数模与试验的比较。
- The change point problem in the mean of a sequence of independent normal random variables is considered using CUSUM methods. 摘要运用累积和CUSUM的方法研究了独立正态随机变量序列均值变点问题。
- An expression for the mean and covariance matrix of normal random matrix polynomial is derived by applying the method of matrix differentiation to generating function. 本文应用对母函数微分的方法得到正态随机矩阵多项式的均值与协差阵的表达式。
- The calculated results indicate that the random wave response of the wave-permeable breakwater can be effectively controlled when proper TLD parameters are selected. 计算结果表明;适当选择TLD的参数可以有效地控制透空式防波堤的随机波浪反应.
- The capsizing route of a fishing vessel is simulated for different significant wave heights. A safe basin in the initial value plane is constructed with cell mapping method for the different initial conditions and random wave parameters. 模拟了一条渔船不同有义波高作用下横摇倾覆过程,考虑不同的初始条件及随机波浪参数,在初始值平面上采用胞映射法构造了渔船航行的安全域。
- Barkirov introduced majorization in the research of quadratic form of random variables and got the result as following: If , be independent normal random variables , two positive vectors , then . Bakirov首次将控制序概念引入到高斯向量二次型分布的不等式研究,并且证明了下述结论:令 为相互独立的标准正态变量, 和 为两个正的实向量。
- The random wave loads are discussed to calculate the wave forced on the legs of the jacket in Chapter 2. The Airy wave theory and linearized Morison equation are utilized to obtain the wave loads spectrum. 第二章主要对随机波浪载荷进行了分析,选择线性的Airy波浪理论和线性化的Morison方程计算作用在平台桩腿结构上的波浪力,并推导了波浪力谱的形式;
- In this example, normal random matrix multiplied by a rectangular time varying standard deviation as noise, and rectangular time varying as a base band signal are summed to form an AM signal. 本例以常态随机变数矩阵乘以标准差为方波时变代表杂讯,及时变方脉波代表基频讯号,合成基频讯号及杂讯和之调幅讯号。
- In this paper, a numerical model of wave set ?up and nearshore current generated by directional random wave on complicated mild slop is presented and is tested on the supposed topography . 本文建立了一套计算近岸复杂地形上由二维随机波浪引起的的波浪增水与近岸流的数值模式,并在模拟地形上实施了计算实验。
- In this paper,a series of random waves has been generated by the JONSWAP wave spectrum and the histories of continuous and long-lasting random wave forces are bu. 利用海浪谱JONSWAP谱生成随机波浪,并结合改进的波浪力时程模型生成一个连续的、持续时间相对较长的随机波浪力作用过程。
- Independent standard normal random variable 独立标准正态随机变量
- The quantity of time before capsize which is anticipated to quantify the probability of ship capsizing on given random waves is proposed in this paper. 本文建议采用在随机波作用下船舶保持不倾覆状态所能持续的时间作为表征船舶稳性的指标。 由于波浪外载荷随机性的特性 ,这一持续时间是一个随机变量 ,和某一概率相联系。
- Normal Random Variable Design and Numerical Test 正态随机变量设计和数值试验
- The motion of large diameter cylinder breakwater under the action of random waves consists of three parts: rotation, rotation-small sliding and rotation-large sliding. 摘要根据大直径薄壁圆筒防波堤的受力特征,提出了防波堤可能出现的3种运动模态:摇摆运动、摇摆-小滑移运动和摇摆-大滑移运动。
- asymptotically normal random variable 渐近正规随机变量
- The method which is based on ,the Longuet-Hinggins model superposes a basic random wave train with a transient wave train so as to generate a short wave train including freak waves. 得到的畸形波畸形程度较高,并且可以控制畸形波出现的时间和地点。
- equivalent normal random variable 当量正态变量