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中学语文游戏教学策略浅探
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作者 杨富昌 《语文教学通讯》 2022年第24期25-26,共2页
在中学语文教学中开展游戏教学可以使课堂氛围更加活跃,学生参与度更高。具体可以从这样几个方面展开:游戏语文之道术器用;游戏语文之溯本清源;游戏语文之功用前景。从而追寻游戏语文本质,粗线条勾勒游戏语文轮廓。
关键词 道术器用 溯本清源 功用前景
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Narrow-channel-spacing 32-channel AWG multiplexer with an innovative alignment method
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作者 LI Jian AN Jun-ming XIA Jun-lei WANG Hong-jie HU Xiong-wei 《Optoelectronics Letters》 EI 2005年第2期131-133,共3页
A 32-channel 50 GHz spaced arrayed-waveguide grating(AWG) with our innovative configuration has been designed and fabricated.The performance of the device has been fully tested by using a system that consists of a tun... A 32-channel 50 GHz spaced arrayed-waveguide grating(AWG) with our innovative configuration has been designed and fabricated.The performance of the device has been fully tested by using a system that consists of a tunable laser light source (TLS), an optical power meter and a polarization controller.The insertion loss (IS) of the device is 4.2-7.4 dB.The crosstalk is about -28 dB.The IS uniformity is less than 3.3 dB.With our configuration,the performance of the device has been enhanced effectively and the difficulty in alignment process has been decreased obviously. 展开更多
关键词 通信技术 窄通道间距 多路复用器 AWG 偏振现象
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