鳍

奇异积分方程在E面鳍形膜片不连续性问题中的应用

Singular Integral Equation Technique for the Analysis of E-Plane Fin Septa Discontinuities

工程中应用的减摇鳍系统多采用经典的PID控制规律。

Anti-rolling fin system in engineering usually uses the classical PID controller .

海豹的鳍肢与人类的手臂同源。

The seal 's flipper is homologous with the human arm .

你可以根据鳍的形状来辨认这种鱼。

You can recognize the fish by the shape of their fins .

鸟的翅膀与鱼的鳍功能相似。

A bird 's wings are comparable in function to a fish 's fins .

鱼用鳍来平衡和驱动身体。

A fish uses its fins to balance and steer itself .

一条鲨鱼把鳍露出海面游动

A shark was finning around the surface of the ocean .

鲸、海豹，企鹅和海龟均有鳍形肢

Whales , seals , penguins , and turtles have flippers .

基于ARM的减摇鳍智能控制器的研究

Study on Intelligent Controller of Fin Stabilizer Base on ARM

减摇鳍变参数PID控制器的设计

Design of A Variable Parameter PID Controller for Fin Stabiliser

温度、盐度、pH和麻醉剂对长鳍篮子鱼幼鱼耗氧率的影响

Effects of water temperature , salinity , pH , and anaesthetics on oxygen consumption rate of juvenile Siganus canaliculatus

FDTD方法对阶梯鳍线场分布的研究

Fields Distribution Study of Stepped Fin Line by FDTD Method

一种Ka频段波导微带鳍线转换结构

An Ka Band Waveguide to Micro-Strip Transition With Fin-Line Taper Structure

鳍线PIN管开关

Fin-Line PIN Diode Switch

紧凑型共面波导馈电的双极化槽天线KA波段对极鳍线微带波导过渡研究

Compact CPW-fed Dual-Polarization Slot Antenna STUDY OF KA-BAND WAVEGUIDE TO MICROSTRIP TRANSITION

提出了将PLC应用于减摇鳍控制器的设计，完成前期准备工作，为哈尔滨工程大学硕士学位论文下一步将PLC应用于整个船舶减摇控制系统打好基础。

Give the design of the substitution of the whole fin stabilizer control system by PLC , and finish all the preparatory works .

目前为止，采用鳍线串联PIN管制作开关，在国内还是第一次，因而本论文在这方面所做的工作是一项有益的探索。

So far , it is the first time that the PIN diode is in series with fin line to achieve switch in China .

X波段的实验研究表明，在10%频宽内，VSWR<1.25（波导移相器）和1.5（鳍线隔离器）是能够实现的。

The experimental researches have been performed in X-band , and VSWR < 1.25 ( waveguide phaser ) and 1.5 ( finline isolator ) in 10 % bandwidth can be realized .

P-Q伺服阀在减摇鳍电液负载仿真台中的应用

Appliance of P-Q Servo-valve in Electro-hydraulic Load Simulator of Fin Stabilizer

然后用FLUENT软件对变形前后的减摇鳍进行数值计算和比较。更进一步说明变形后的减摇鳍的优越性。

Then calculate and compare the lift coefficient of fin stabilizer before and after deformation by FLUENT to illuminate superiority of the deform fin stabilizer further .

介绍了PLC在减摇鳍装置航速调节中的应用，以PLC为控制核心实现装置的航速灵敏度调节的数字化处理。

The application of PLC in speed adjustment of fin stabilizer is introduced in this paper . This system uses PLC as the central device to achieve digital control of sensitivity adjustment of speed .

本文采用面元法理论以及计算流体力学软件FLUENT对螺旋桨与舵附推力鳍组合体系统进行了理论计算。

In this paper , panel method and CFD software FLUENT have been used for the calculation of the interaction of propeller and rudder with additional thrust fin .

UG75/5.3-M3锅炉鳍式水冷壁管排焊接接头两侧布置有保温销钉，从而对X射线探伤产生了影响，文章重点探讨销钉如何布置才不会对探伤产生影响。

UG75 / 5.3-M3 boiler 's wate wall 's welded joint fixes up side pin , and this influence X ray flaw detection , the paper makes a probe on how to fix up the pin 's position .

运用数值求解不可压缩雷诺平均N-S方程的方法研究了带鳍舵无动力鱼雷的流体动力特性。

In this paper , the fluid dynamic characteristic on the torpedo with fin and rudder was researched by solving incompressible Reynolds Average N-S equation numerically .

双尾（鳍）船型线特征及局部变形设计方法研究双尾鳍组合仿生UUV的研制及其特性研究

Catamaran-stern Hull s Lines Character and Local Transformation Method Research ; Design and study on the multiple-bionic UUV with double tail fins

利用H∞控制理论对船舶减摇鳍横摇姿态控制系统进行了混合灵敏度设计，并针对船舶减摇鳍系统的特殊性，解决了H∞控制器设计中与该系统不匹配的有关问题。

By using the H ∞ control theory , a mixture sensibility design was made for a fin stabilizer system . The mismatch problem in the design of H ∞ controller associated with the system was solved in accordance with the features of the ship roll damping .

研究随机海浪仿真方法，建立船舶减摇鳍系统非线性仿真模型。其次，设计GA-FC控制器改善PID控制器适应性差的问题。

Study the stochastic ocean wave simulation method . The nonlinear model of ship stabilize system is built . Next , GA-FC controller is designed to improve the compatibility of PID controller .

论文采用分数阶保持器（FROH）代替传统的零阶保持器（ZOH），对减摇鳍系统进行数字控制设计。

This paper uses fractional order hold ( FROH ) to replace the traditional zero-order hold ( ZOH ), designs a numerical control system for the fin .

刚出膜的仔鱼全长11mm，出膜后第2天到第4天，胸鳍、鳃、口腔、鳍、眼色素、体内血管等器官相继发育完全；

The newly hatched larvae are 11 mm . in total length . The pectoral fins , gills , mouth , caudal fin , eye pigment , blood vessels and other organs were formed gradually 2-4 days post hatching .

有景点的光芒发展对胸鳍鳍。

There are spots of shine developing on the pectoral fins .