It was found that the ability of improving diffusion cascade performance was affected by some characteristics of the inlet boundary layer.
结果表明弯叶片对扩压叶栅的改善的能力受进口边界层的特征影响。
The experimental results show that the influence of clearance variation on flow structures and cascade performance is different at different working conditions.
试验结果表明，不同工况下间隙变化对流场结构的影响不同，因而对叶栅性能的影响规律也不同。
Through a numerical simulation investigated is the impact on the cascade performance of the curved height and curved angle in a curved diffuser cascade having different turning angles.
通过数值模拟研究不同折转角弯曲扩压叶栅中弯高、弯角对其气动性能影响，利用试验设计和遗传算法实施方案选择和优化设计，给出不同折转角下弯高、弯角最佳匹配范围。
Their work is published in Applied Physics Letters: High-performance, homogenous broad-gain quantum cascade lasers based on dual-upper-state design.
他们的工作发表在《应用物理快报》 ：基于双高能态的高性能同质光谱增益量子级联激光器的设计。
Their work is published in Applied Physics Letters: "High-performance, homogenous broad-gain quantum cascade lasers based on dual-upper-state design."
他们的工作发表在《应用物理快报》：基于双高能态的高性能同质光谱增益量子级联激光器的设计。
Internal feedback cascade speed control system is proved to have a good cost performance and can be used on large and medium type fans extensively.
内反馈串级调速系统是一种具有优良的性能价格比的调速节能设备，适合于电厂的大中型风机调速节能运行。
The working principle and performance characteristic of asynchronous motor cascade velocity modulation are analyzed, and the inner feedback cascade velocity modulation is introduced systematically.
分析了异步电动机串级调速的工作原理与性能特点，介绍了内反馈串级调速电机及其装置的系统结构。
The results showed the influence of pivoting-stator on the turbine's aerodynamic performance was combined effect of cascade convergence, attack Angle and out-flow Angle.
研究表明，可调导叶对涡轮性能的影响是叶栅收敛度、气流冲角与出气角的综合影响。
The results show that the proposed cascade system improves the performance gain by 2 to 6 dB compared to traditional BICM system.
结果证明，该文级联系统取得高出一般位交织编码调制系统2—6分贝的性能增益。
The simulative results show that the control performance of the model predictive control system is superior to that of the traditional cascade control system.
仿真结果表明，较之传统的过热汽温串级调节系统，采用该模型预测控制策略的过热汽温控制系统的控制性能有很大的提高。
For the turbine stator cascade, the negative curving of blade can not improve the performance of the cascades as well, the total losses of straight cascade are the lowest.
叶栅中部和端部二次流均增强，总平均的二次流动能增大。对于该叶栅，叶片反弯曲亦不能提高叶栅流场的气动性能，直叶片叶栅总损失最小。
Results show that, under same operation conditions, performance with SOC-PID control is superior to that of using conventional PID cascade control.
结果表明，在同样的运行条件下，SOC -PID控制的性能优于常规pid串级控制的性能。
To improve the tracking performance of ac servo-system, PFC-PID cascade control strategy is presented by combining the PFC with PID control.
为了提高交流伺服系统的跟踪性能，将预测函数控制(pfc)和PID控制相结合，提出了一种PF C - PID串级控制策略。
The S1 stream surface and three-dimensional viscous and non-viscous calculation programs can be employed to verify and check cascade space flow passage performance.
S1流面和三维有粘、无粘计算程序用来考核叶栅空间通流性能。
After optimization, the flow field in cascade passage is effectively improved, and the performance of stage is improved obviously.
对比数值模拟结果，优化后有效地改善了叶栅流道中的流动状况，级性能有了显著的提高。
The results show that the method proposed in this paper has better performance than commonly used cascade PID control method in power plant.
结果表明，该方法比目前电厂普遍使用的串级PID控制方法具有更好的控制系统性能指标。
Furthermore, experiments show that the adoption of double-row cascade diffusers in centrifugal compressors will improve its performance and widen its stable operating range.
此外，通过试验证明：在离心压气机上采用双列叶栅扩压器，可以改善压气机性能，扩大压气机的稳定工作范围。
This paper presents the results of the experimental investigation on the effects of internal acoustic excitation on enhancing performance of the annular cascade.
阐述了在环形扩压叶栅内利用非定常激励减少分离区损失的实验研究成果。
Extensive simulations have shown that fuzzy expert controller has better control performance than classical cascade feedback controller in the gantry crane control.
仿真结果表明，模糊专家控制器在行车控制中比串联反馈控制器各项控制性能好。
A multielement cascade resonant converter is presented in this paper, which improves the performance by combining the characteristics of series resonant converter and parallel resonant converter.
本文介绍了一种多元件级联式谐振变换器，该变换器结合了串联谐振变换器和并联谐振变换器的特点，并且在运行性能上有所提高。
As two means to get a low temperature, two-stage compression cycle and cascade cycle have their advantages of economical performance in different temperature range.
对于获取低温的两种手段—双级压缩循环和复叠循环来说，它们分别在不同的温区具有经济性优势。
On the basis of an elementary cascade method a calculation model for the off-design performance of an axial-flow compressor has been set up.
基于基元叶栅法，建立了轴流式压气机的变工况计算模型，并采用变比热公式计算空气的热力参数；
A novel cascade multi-level converter with carrier phase-shifted SPWM (CPS-SPWM) technique is proposed in this paper. This converter has good prospect in engineering due to its perfect performance.
本文提出的基于载波相移穴CPS -SPWM雪技术的级联型变流器同时具有CPS - SPWM技术与多电平变流技术的优点，因而有广泛的工程应用前景。
The compression work or the total pressure ratio of a compressor is determined through the use of cascade element performance data concerning deviation Angle.
压气机的加功量或增压比由其基元叶栅的落后角确定。
A multiple feed forward and feedback GPC algorithm for cascade system is developed to make full use of the knowable information of the plant so as to bring about the optimum control performance.
为了充分利用对象的可知信息以实现串联系统的最优控制，提出了串联系统的多前馈-反馈广义预测控制算法。
The simulation results and the comparison with PID cascade control show that the PFC-PID cascade control strategy can improve the controlled performance of AC servo-system.
通过仿真及与PID控制的比较表明，采用PF C - PID串级控制策略能够改善交流伺服系统的控制特性。
On the slot suction test rig of a humid-air plane-cascade, an experimental study was conducted of the water removal performance of the suction slots on hollow stationary blades of a steam turbine.
在湿空气平面叶栅缝隙抽吸试验装置上，对汽轮机空心静叶抽吸缝隙的去水性能进行了试验研究。
The unsteady flow past stationary and oscillating cascade for off-design performance respectively are simulated numerically with the Discrete Vortex Method.
采用离散涡方法数值仿真了不同来流攻角下，固定与动边界叶栅绕流。在设计工况时流动接近定常流动。
The unsteady flow past stationary and oscillating cascade for off-design performance respectively are simulated numerically with the Discrete Vortex Method.
采用离散涡方法数值仿真了不同来流攻角下，固定与动边界叶栅绕流。在设计工况时流动接近定常流动。
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