An impulse response technique has been investigated by application to the open screens for obtaining sound transmission loss. The measurements of such screens according to ISO 140 were also presented. The predicted results calculated by a model which is based on Huygen’s principle and Kirchhoff’s formulation have shown good agreements with the results obtained by impulse method. The method requires no specialist acoustic facilities and measurement systems can be portable.
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机译:Radiation-Independent Distal Locking Screw Insertion Using Dual Nail Insertion Handle: Is it a Reliable Method? 标题:使用双钉插入手柄而无需使用造影来插入胫骨远端锁定螺钉:它是一个可靠的方法?
机译:Etude preliminaire sur l'Utilization de Techniques de Techniques de Demodulation de phase pourl'analyse des Donnees Vibratoires des Engrenages(使用相位解调技术分析齿轮振动数据的初步研究)