空气动力

Four aspects of research achievements include:(1)several imaging correction methods and strained estimation methods for biological tissues elasticity imaging were investigated as well as elasticity reconstruction and phantom, in vitro and in vivo elasticity imaging experiments;(2)in the fields of biological microsystem and perfusion evaluation for microvascular system, three kinds of microbubbles whose shell are albumin, sugar ester and surfactant respectively were designed and produced, then the methods to estimate the thickness of their shells were presented, moreover, the interacting mechanism of ultrasound contrast agents and tissues, as well as protein drug delivery under the condition of ultrasound sonification were studied in the molecular level;(3) At the aspect of high intensity focused ultrasound therapy system, we designed and constructed the 256-element HIFU transducers using 1-3 composite materials. And furthermore we developed the integrated HIFU system with 256-element HIFU transducers. And we made preliminary and important progresses in the research of HIFU bioeffect, lesion estimation, techniques of monitoring and imaging and characterizing of structure of HIFU transducer;(4)The real-time method of voice source regeneration based on compensative regulation of physiological parameters was investigated in the field of medical rehabilitation. We addressed the physiology and biophysics of vocalization, modeled voice source regeneration based on compensative regulation mechanism, and put forward an integrated evaluation about the speech rehabilitation and the regenerated voice source; Sixty-one archived journal papers were published, as well as ten in international journals, and eighteen publications were embodied by SCI.

中文摘要：成果包括：（1）在生物组织弹性成像方面，研究了多种图像校正方法和应变估计方法，进行了弹性重构和仿体、离体及在体超声弹性成像实验研究；（2）在生物微系统和微血管血流灌注成像方面，制备了三种不同包膜超声造影微泡，研究了纳米包膜厚度检测与估计方法以及不同纳米包膜造影微泡断裂与药物释放机制，并在分子层次上开展了超声与生物组织相互作用机制以及蛋白质药物超声乳化微囊包裹的研究；（3）在阵列式高强聚焦超声治疗与监控成像技术方面，设计制作了新的HIFU换能器，解决了256阵元单焦点和多焦点合成HIFU治疗系统关键技术问题，并在HIFU生物效应与创伤性评价方法、HIFU过程监控成像技术和薄层复合结构与HIFU 换能器界面特性评价等方面的研究取得了初步而重要的进展，具有重要应用前景；（4）在语音听觉系统特别是嗓音康复方面，研究了基于发声系统补偿调节机制的实时多模式嗓音源再生方法和发声生理，建立基于神经、肌肉和空气动力系统的综合补偿调节模型，提出了相应的评价系统。

By analyzing the heat transfer process in trombe wall and of air gap, a CFD model for simulating temperature field in trombe wall is presented and solved by coupling the conductive and radiative heat transfer in solid with RNG k-ε equation.

对特朗勃壁内传热过程和夹层空气动力进行分析，建立了CFD数值模拟模型，耦合流固传热，利用Relieble k-ε两方程模型模拟了特朗勃壁内温度场。

Moveable aerodynamics Budget controlled teams will be allowed to have their front wing adjusted by 1 0°, a surplus of 4° over the teams that choose to go with the conventional r ule set.

可动空气动力套件预算帽车队的前翼将被允许10度的调整，比其它车队多4度的选择，而且次数不作限制--没有没圈两次的限制。

We can see from the numerical results of the improved exhaust system in acoustic and fluid fields that: the improved design succeeds in increasing the attenuation performance and reducing the pressure loss and meliorating the aerodynamic quality.

改进后的流场和声场分析结果表明：改进设计使得排气系统的空气动力特性、低频、高频消声特性等方面都较原结构有所改善，达到了预期改进目标。

During high-speed flight only the advancing blades of each rotor generated lift; this off-loaded the retreating blades and thereby eliminated the aerodynamic restrictions caused by blade-stall and the high mach number effect of the advancing blade tip.

在高速飞行只有每个转子叶片产生升力推进，这卸下撤退的刀片，从而消除了刀片失速和高马赫数前进叶尖数效应所造成的空气动力的限制。

Heading up the company is Shiva Vencat, who says that while the "whole wide world" may criticize air-powered cars, at the end of the cars such as the Chevrolet Volt need a "massive lithium-ion battery" and hence the final cost to consumers skyrockets.

标题该公司是湿婆Vencat ，谁说，而&整个世界上&可能批评空气动力汽车，在年底的汽车，如雪佛兰Volt需要&大规模锂离子电池&，因此，最终费用消费者skyrockets 。

Air motor actuators are often specified in very hazardous locations where electric power is not available or permitted.

空气动力驱动经常用在电动驱动装置不能或者不容许的危险地点。

The effects of jet interaction on forces and moments are described by interaction amplification factor, and the algorithm to calculate the interaction amplification factor is presented, then the motion model and the dynamics model of interceptor are established according to the previous analysis.

根据大量参考文献的结论，分析了侧向喷流射入拦截弹外流的流场特征，以干扰放大因子来描述干扰效应对力和力矩的影响，给出了放大因子的计算方法，进一步建立了喷流侧向力和空气动力作用下的导弹运动学和动力学模型。

According to the cross wind ,the aerodynamic field inside and outside an air cooling tower is numerically simulated.

对侧风条件下空冷塔内外的空气动力场进行了数值模拟，分析了塔外速度分布、压力分布，并与相应条件下理想流体圆柱绕流的情况进行了比较。

The characteristics of pressure drop of wire packing rotating packed bed absorber in air independent propulsion system are analyzed under counter-current condition and the model of pressure drop is built.

对不依赖空气动力装置系统不锈钢波纹丝网填料旋转床吸收器在气液两相逆流条件下的气相压力降特性进行了分析，建立了压力降预报理论模型。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。