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| 1 | Traveling wave tube measurements for low-frequency properties of underwater acoustic materials显示文摘A traveling wave tube measurement technique for measuring acoustic properties of underwater acoustic materials was developed.Water temperature and pressure environments of the ocean can be simulated in a water-filled tube,and the acoustic parameters of samples of underwater acoustic materials are measured in the range of low-frequency.A tested sample is located at central position of the tube.A pair of projectors is separately located at both ends of the tube.Using an active anechoic technique,the sound wave transmitting the tested sample is hardly reflected by the surface of secondary transducer.So the traveling sound field is built up in the tube.By separately calculating the transfer functions of every pair of double hydrophones in the sound fields from the both sides of the sample,its reflection coefficients and transmission coefficients are obtained.In the measurement system,the inside diameter of the tube isΦ208 mm,the working frequency range is from 100 to 4000 Hz,the maximum pressure is 5 MPa.The reflection coefficients and transmission coefficients of a water layer and a stainless steel layer samples are measured actually and calculated theoretically.The results show that the measured values are in good agreement with the values calculated,and the measurement uncertainty is not greater than 1.5 dB. | LI Shui LUO Maqi FAN Jinliang SHEN Jianxing | 2007 | Chinese Journal of Acoustics2007，26，4： | 9 |
| 2 | Effects of Aqueous Al, Cd, Cu, Fe(Ⅱ),NiandZnon Pbimmobilization by Hydroxyapatite 显示文摘 | MaQY TraianS J LoganTJ | 1994 | Environ Sci Technol1994，28，7： | 1 |
| 3 | Haplotypes in the human Foxola and Foxo3a genes;impact on disease and mortality at old age 显示文摘 | Kuningas M Maqi R Westendorp RG | 2007 | EurJ Hum Genet2007，15，： | 1 |
| 4 | VisualcorticalactivationsonfMRIuponstimulationofthevision-implicatedacupoints显示文摘 | LiG CheungRT MaQY etal | 2003 | NeuroReport2003，14，5： | 1 |
| 5 | 单克隆抗体介导抗原捕获酶联免疫吸附试验鉴定传染性支气…显示文摘作者建立了一种抗原捕获酶联免疫吸附试验(C-ELISA)。用对各血清型S1糖蛋白有特异性的单克隆抗体(MAb),对阿肯色(ArK)、康涅狄格(Conn)、马萨诸塞(Mass)等血清型的传染性支气管炎病毒(IBV)进行了检测和鉴定。当S1特异性单克隆抗体、抗原、鸡血清的血清型相同时,试验(采用双抗体夹心法)结果最为理想。而用群特异性(M糖蛋白特异性)MAb捕获抗原。 | Maqi,SA 赵军 | 1994 | 国外兽医学(畜禽传染病)1994，14，4： | 0 |
| 6 | 椅子艺术 | LINA NORDQVIST Hi-Res Maqis spa Dohoon Kim Konstantin Grcic Vitra Luca Nichetto Vasiliy Butenko Danya 肖俊 | 2012 | 现代装饰(家居)2012，0，2： | 0 |
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