F,Cl,Br,I在NaCl和NaI表面上的化学吸附

本文将Ａｎｄｅｒｓｏｎ－Ｎｅｗｎｓ模型扩展，计算Ｆ、Ｃｌ、Ｂｒ、Ｉ等卤族原子在ＮａＣｌ和ＮａＩ表面上的化学吸附能否△Ｅ和电荷转移△Ｑ。     

On the Measurement of Technological Change

ｗｈｅｒｅＩｖｉｔｉｓｐａｒｔｉａｌｅｌａｓｔｉｃｉｔｙｏｆｏｕｔｐｕｔｗｉｔｈｒｆ＇ｓｐｅｃｔｔｏｉ－ｔｈｆａｃｔｏｒｉｎｐｕｔ，ａｎｄｂｉｔ＝Ｘｉ，／Ｌ，ｔｈｅｉｎｔｅｎｓｉｔｙｏｆｉ－ｔｈｆａｃｔｏｒｔｖｉｔｈｒｅｓｐｅｃｔｔｏｌａｂｏｒＩｎｐｕｔ．Ｏｎｔｈｅｒｉｇｈｔ－ｈａｎｄｓｉｄｅｏｆｌ；ｈｅａｂｏｖｅｅｑｕａｔｌｏｌｌ，ｔｈｅｆｉｒｓｔｃｏｍｐｏｎｅｎｔｉｓｋｎｏｗｎａｓｔｈｅ＂ｅｘｏｇｅｎｏｕｓｔｅｃｈｎｉｃａｌｐｒｏｇｒｅｓｓ＂，ｎｌａｌｎｌｙｄｕｅｔｏａ＇ｌｖａｎｃｅｉｎｋｎｏ＼ｖｉｅｄｇｅ；ｔｈｅｓｅｃｏｎｄｃｏｍｐｏｎｅｎｔｉｓａｔｔｒｉｂｕｔｅｄｔｏｓｃａｌｅｅｃｏｎｏｍｉｅｓｏｒｄｉｓｅｃｏｎｏｍｌｅｓ，ｔｈｅｔｈｉｒｄｃｏｍｐｏｌｌｅｎｔｉｓｔｈｅｔｅｃｈｎｏｌｏｇｉｃａｌｃｈａｎｇｅ，ｄｅｔｅｒｍｉｎｅｄｂｙｍａｒｇｉｎａｌｒａｔｅｓｏｆｓｕｂｓｔｉｔｕｔｉｏｌｌｏｆｆａｃｔｏｒｓ，ｆａｃｔｏｒｉｎｔｅｎｓｉｔｉｅｓｗｉｔｈｒｅｓｐｅｃｔｔｏｌａｂｏｒｉｎｐｕｔａｎｄｔｈｅｉｒｃｈａｎｇｅｓ．Ａ＞ｉｌｌｅｘｉｔｌｌｌｐｌｅｏｆｅｌｌｌｐｌｏｙｌｌｌｇｔｈｅ１ｌｌｅｔｈｏｄｏｆ     

Mechanical alloying in immiscible alloy systems

In recent years, mechanical alloying (MA) of immiscible alloy systems characterized by positive heat of mixing has been extensively investigated. The present article reviews the latest progress in MA of immiscible alloy systems including the mechanisms of non-equilibrium phase transformation and metastable phase formation of the MA-driven supersaturated solid solutions, amorphous phases and nanophase composites as well as their mechanical and physical properties related to those metastable phases.     

铅的MIP-AAS测定

通过测铅来研究用常压氩微波诱导等离子体(MIP)作为原子吸收光谱法(AAS)的原子化器的可行性。样品用钽丝电热蒸发并经浓硫酸去溶后引入MIP。文中考查了各实验参数对测铅的影响。用本法测铅的特征浓度为O.1μg/mL。对实际样品的测定,取得了令人满意的结果。     

东邻岛国日本

我国的近邻日本位于亚洲东部,地处太平洋西缘,同中国大陆隔海相望。日本列岛由四个大岛(本州、北海道、九州、四国)和包括北方诸岛在内的三千多个小岛组成,形成一个弧形岛屿带,由东北向西南延伸,长达四千公里,面积为三十七万七千多平方公里,人口一亿一千五百一十七万(一九七八年十月),每平方公里密度三百零六人。民族组成比较单一,几乎全系大和族,仅在北海道有约二万阿伊努人。全国有六百四十五个市,城市人口占总人口的百分之七十六。百万人口以上的大城市有东京、大阪、横滨、名古屋、     

基于HMM／MLFNN混合结构的说话人辨认研究

将隐马尔可夫模型与人工神经网络相结合既利用ＨＭＭ能够较好地描述动态时间序列又ＡＮＮ静态分类能力强的特点，应用于说话人辨认。本文将一个多层前馈神经网络与ＨＭＭ相结合构成混合模模型，与以往的方法不同。具有所需训练数据量小，推广性能良好的特点。     

磺化铝酞菁对甘氨酰-L-色氨酸的光敏化氧化

光敏化氧化反应是指光敏剂在光作用下氧化底物的过程,它是近年来兴起的光动力学疗法的基础。酞菁化合物与卟啉结构相似,在近红外区(600～700 nm)有很强的吸收,无毒,光与热稳定性好,是很好的敏化剂,某些酞菁能选择性地滞留在肿瘤组织中,对肿瘤细胞有较强的杀伤能力,磺化铝酞菁在水溶液中不聚集,是有应用前景的光动力试剂。磺化酞菁类染料对L-色氨酸的氧化主要是~1O_2反应,但与短肽化合物相互作用的研究较少。本文利用自行合成的磺化铝酞菁研究了它与甘氨酰-L-色氨酸的光敏化氧化动力学,并对其反应机制进行了推断。     

Applications of Acrylate—based Polymer and Silicone Resin on LPFG—based Devices

Both acrylate-based polymer and silicone resin are proposed as recoating materials surrounding LPFGs for purposes of different applications.For the LPFG recoated with a thin layer of acrylate-based polymer,the range of wavelength shift as much as 60nm is expected when temperature changes from0-100℃.As for that with surrounding material of silicone resin,the temperature stability is greatly improved depicted as the maximum wavelength shift of about 0.6nm with the same temperature variation.The former is potentially a broadband tunable band rejection filter or temperature sensor with enhanced sensitivity.And the latter could be applied as temperature insensitive filter,demultiplexer or strain sensor.