目的:探讨分析声学造影剂肝静脉显影时间诊断不同时期肝硬化的价值。
Objective: To assess the value of sonographic of contrast agent appearing in hepatic vein in diagnosing the stages of liver cirrhosis.
对比分析声学造影移植肾急性排斥和急性肾小管坏死血流灌注变化特点,探讨该方法对移植肾并发症鉴别诊断的可能性。
To analyse changes of blood perfusion ar and ATN comparison by contrast ultrasound and explore the feasibility of distinguishing diagnoses of renal allograft complication using the new method.
美国科学家分析了装在虎鲨上的声学信号传送器中储存的数据,发现他们能够到各处直来直去。
US-based scientists analysed data from tiger sharks tagged with acoustic transmitters, and found that they took directed paths from place to place.
新产品产品分析模型的建立并优化关键声学参量。
Build up analysis model and optimise the key acoustic parameters for new products.
通过对驾驶室内空气声、固体声和混响声的分析,说明了简易式驾驶室的声学特性对耳旁噪声的影响。
On analysis, it is explained that the efcct of air, solid and reverberant noise within the cab on the car noise is illustrated in detail.
本文从波动声学观点出发,分析了矩形水池中声能的衰变,给出了一种解算复本征值的新方法。
This paper analyses the sound decay in an acoustically treated rectangular space from the view point of wave acoustics. and a new method of calculating complex eigenvalue is given.
文章根据波动声学的观点对房间内的低频段声场做分析,理论和实验都验证了这个结论。
Based on wave acoustics, the low frequency sound field is analyzed in this paper, and reciprocity is verified both theoretically and experimentally.
结论实时心肌声学造影可定量分析x综合征患者心肌微循环灌注情况。
Conclusion myocardial microcirculation in syndrome X could be quantitative analyzed by real-time myocardial contrast echocardiography.
目的探讨嗓音声学分析在评估声带息肉手术疗效中的作用。
Objective To evaluate the use of voice acoustic analysis in laryngeal polyp surgery.
大量的分析表明,飞机声学隐身技术是飞机隐身技术中的重要内容,它对飞机的作战生存力有很大的影响。
A lot of analysis show, aircraft acoustics stealth technology is a important part of aircraft stealth technology. It can make a great effect on aircraft combat survivability.
本文运用理论分析,根据水下爆炸和水声学的基本知识,分析了水下爆炸的基本特性,得出水下爆炸声源的基本模型;
The signal source model of underwater explosion is obtained through theoretic analysis. According to the basic knowledge of underwater explosion and acous tics.
研究结果表明,三维声学边界元模型是抗性结构消声器声场分析的有效方法并具有较高精度。
The research shows that the three-dimensional acoustic boundary clement model is an efficient and highly accurate method of sound field analysis of reactive mufflers.
目的:探讨嗓音声学分析参数与声嘶程度心理听觉评价之间的关系。
Objective: to investigate the relationship between acoustic analysis and auditory assessment of hoarseness.
本文从声学振动理论出发,分析并导出了结构的振动与表面辐射噪声的关系。
In this paper, the relationship between the structure vibration and the surface noise radiation is analyzed and deduced from the acoustic and vibrational theory.
对声调的声学特征进行分析,得出调值的具体变化值,为普通话的测评和教学提供一个可供参考的标准。
The analysis for the tone's acoustic characteristics helps us gain the tone's accurate variations which can be used as a referendal standard for Putonghua's estimation and teaching.
分析了声学上的不利因素,具体阐述了建声设计中的各种意图。
This paper analyzes unfavorable factors in its acoustics and illustrates different kinds of intention of the design.
论文从实验研究的角度出发,分析了不同心理声学参数对摩托车噪声声音品质的影响。
With some experiments, we analyze the influence of some different psychoacoustics parameters over motorcycle sound quality.
结论嗓音障碍的客观评估应选择声学分析参数。
Conclusion It is suggested that parameters of the acoustic measure be better in analyzing the voice objectively.
本文的研究是在传统的叶轮优化设计过程中添加声学性能分析的一个环节。
This thesis adds a link of acoustic performance analysis in the traditional process of impeller optimization.
目的比较嗓音声学分析和电声门图在嗓音障碍客观评估中的意义。
Objective To compare the reliability of acoustic measure and the electroglottograph in evaluation of the voice dysphonia.
本文通过对低频主动声纳的主动声纳方程的分析与声学探测过程的仿真,初步研究了低频主动声纳在不同距离上的最优探测频率问题。
With analyzing the detecting procedure of Low-frequency active sonar and emulating about it, the Optimum Detection frequency Band of Low-frequency active sonar were researched.
车室声学模态分析是汽车NVH特性研究的重要内容,识别系统模态对避免声学共振、降低车内噪声有重要意义。
The acoustic modal analysis of cavity is the important matter on vehicle NVH performance study. Identifying system mode is of importance to avoid acoustic resonance and reduce interior noise.
结论嗓音声学分析对诊断慢性喉炎、声带小结、声带息肉有较大的价值。
ConclusionVoice acoustic parameters are of greater value in the diagnosis of chronic laryngitis, vocal nodule and vocal polyp.
文章提出将子波分析用于求解声学中的边界积分方程,能提高现有边界元方法解决工程问题的能力。
Traditional boundary element methods with a full matrix equation for acoustic problems, have been met by a challenge in large scale scientific computation and numerical simulation in engineering.
目的:利用实验性兔肝对二次谐波成像中的剂量-效应关系进行声学定量分析。
Objective: to have an acoustic densitometry (AD) analysis about the relationship between doses and effects in experiment rabbit liver with second harmonic contrast imaging.
以舰艇声纳导流罩为研究工程背景,本文的主要研究工作是对健康完整和含层间分层损伤复合材料结构的振动特性和声学特性的分析探讨上。
Aiming at the sonar dome in submarines, this thesis mainly addresses the vibration and acoustic characteristics of intact and delamination-damaged structures of composite materials.
该文以一拖拉机驾驶室模型为研究对象,建立了其声振耦合的有限元分析模型,计算了该驾驶室模型的声学模态和声振耦合模态。
In this paper, a structural-acoustic model of a model tractor cab for finite element analysis was established, and the acoustic modal and the coupled structural-acoustic modal were analyzed.
通过韵律匹配度知觉实验和声学参数分析,探讨了句子层面上不同强调范围对句子重音知觉的影响。
The research investigated the influence on the perception of sentence prominence when sentence prominence emphasizes different domains, and analyzes its acoustics parameter.
结论嗓音声学分析可客观、定量地分析嗓音质量,评价手术疗效。
Conclusion voice acoustic analysis can evaluate the operative effect of laryngeal polypectomy objectively and quantitatively.
结论嗓音声学分析可客观、定量地分析嗓音质量,评价手术疗效。
Conclusion voice acoustic analysis can evaluate the operative effect of laryngeal polypectomy objectively and quantitatively.
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