查询词典 regenerative process

One of the primary advantages of hybridization is the use of regenerative braking to recover energy.

混合动力的一个主要有优点是使用再生制动来重新获得能量。

Cells that die must be replaced in the act of regeneration and so hyssop has regenerative properties.

死亡的细胞必须在再生中被取代，因此海索草具有再生的属性。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

The problems such as regenerative reheating furnace needing high coal gas pressure, regenerator jamming, great oxidation loss and furnace control inexactitude are solved by ameliorating technique and strengthening operation management.

针对蓄热式加热炉要求煤气压力大、蓄热室易堵塞、氧化烧损大、炉况控制不精等问题，通过技术改进与加强操作管理得到基本解决，提高了蓄热炉的性能，改善了使用效果。

One goal of regenerative medicine is to instructively convert adult cells into other cell types for tissue repair and regeneration.

再生医学的目标之一就是将成体细胞转化为有益的其他类型细胞以用于组织的修复与再生。

Melton1One goal of regenerative medicine is to instructively convert adult cells into other cell types for tissue repair andregeneration.

Melton1再生医学的目标之一是能够将成年细胞转化为其它能够进行组织修复与再生的细胞。

Lavender floral water has its astringent and regenerative effects on damaged or fragile skin. Its stability and long shelf life are helpful by means of use less preservatives.

薰衣草花卉水尤其对于受损干燥、脆弱肌肤具有收敛及再生效果；借助薰衣草花卉水的天然功能，其稳定性很好，且能保存一段时间，有助产品含极微量的防腐剂。

With the leaf and leafstalk of S. miltiorrhiza Bge. f. alba as explants, the different medium were used to induce clustered buds, strengthen regenerative bud and conduct rooting induction so as to establish a set of rapid propagation system.

方法］以白花丹参的幼嫩叶片和叶柄作为外植体，接种至器官发生分化培养基上诱导丛生芽，然后作壮苗培养，继而生根培养，建立一套快速再生体系。

The result is theoretical significance in the mechanical design of regenerative injection device for Liquid Propellant Gun.

研究结果对液体发射药火炮再生式喷射装置的设计有重要的指导意义。

Then, whether mammalia animal cochlea hair cells possess regenerative ability after being destroyed is disputed.

那么，哺乳类动物耳蜗毛细胞破坏后是否具有再生能力？

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。