2009年美国听力学会（Amelican Academy of Audiology，AAA）年会于4月1日～4日在德克萨斯州达拉斯举行。会上，听力学工作者进行了广泛交流，近200个制造商展示了他们的新技术和新产品。尽管受到全球金融危机的影响．本次会议的参会人...2009年美国听力学会（Amelican Academy of Audiology，AAA）年会于4月1日～4日在德克萨斯州达拉斯举行。会上，听力学工作者进行了广泛交流，近200个制造商展示了他们的新技术和新产品。尽管受到全球金融危机的影响．本次会议的参会人数比往年有所下降．但是．从这次年会交流的内容中仍然能够了解到目前先进的助听器生产技术和临床实践方法。与以往相同，最吸引听力学家、助听器验配师注意的仍然是助听器新技术和新工艺的展示。AAA会议的主要议题是使听障患者配戴助听设备，得到听力补偿。助听设备主要包括助听器、人工耳蜗和人工中耳。我们通常提到的助听器是将环境中的声音收集并放大．最后将声音通过空气传导的方式传入耳道内的装置。实际上，展开更多
BaTiO3 nanorods were synthesized in water/OP-10/n-hexanol/cyclohexane quaternary reverse microemulsion solution at 60 ℃. The effects of the molar ratio of water to surfactant and the concentration of reactants on the...BaTiO3 nanorods were synthesized in water/OP-10/n-hexanol/cyclohexane quaternary reverse microemulsion solution at 60 ℃. The effects of the molar ratio of water to surfactant and the concentration of reactants on the diameters and lengths of BaTiO 3 nanorods were studied. The products were characterized by TEM, XRD and ICP. The results show that the diameters and lengths of the prepared BaTiO 3 nanorods with a cubic phase and a single crystal are approximately 15\80 nm and 300\3 900 nm, respectively. And the molar ratio of barium to titanium of products is 1.0.展开更多
文摘2009年美国听力学会（Amelican Academy of Audiology，AAA）年会于4月1日～4日在德克萨斯州达拉斯举行。会上，听力学工作者进行了广泛交流，近200个制造商展示了他们的新技术和新产品。尽管受到全球金融危机的影响．本次会议的参会人数比往年有所下降．但是．从这次年会交流的内容中仍然能够了解到目前先进的助听器生产技术和临床实践方法。与以往相同，最吸引听力学家、助听器验配师注意的仍然是助听器新技术和新工艺的展示。AAA会议的主要议题是使听障患者配戴助听设备，得到听力补偿。助听设备主要包括助听器、人工耳蜗和人工中耳。我们通常提到的助听器是将环境中的声音收集并放大．最后将声音通过空气传导的方式传入耳道内的装置。实际上，
文摘BaTiO3 nanorods were synthesized in water/OP-10/n-hexanol/cyclohexane quaternary reverse microemulsion solution at 60 ℃. The effects of the molar ratio of water to surfactant and the concentration of reactants on the diameters and lengths of BaTiO 3 nanorods were studied. The products were characterized by TEM, XRD and ICP. The results show that the diameters and lengths of the prepared BaTiO 3 nanorods with a cubic phase and a single crystal are approximately 15\80 nm and 300\3 900 nm, respectively. And the molar ratio of barium to titanium of products is 1.0.
