C-S-H表面上吸附态C1~-离子的分布特点

应用表面物理化学理论,分析了C-S-H在不同浓度、不同种类氯化物溶液中浸泡后ζ电位发生变化的原因,并在此基础上推测了被吸附的C1-离子在C-S-H表面上的分布状态。C1-离子似乎是C-S-H的特性吸附离子,只要C-S-H浸泡于氯化物溶液中,C1-离子将优先进入吸附层。吸附于C-S-H表面的C1-离子的总量包括吸附层中的C1-离子量和扩散层中的C1-离子量。随浸泡液中C1-离子浓度的增大,C1-离子不断进入吸附层,但吸附层的空间是有限的,吸附层中C1-离子增加的速度逐渐减慢。扩散层的C1-离子量取决于ζ电位的大小。在较高浓度的A lC l3溶液中浸泡的C-S-H对C1-离子的吸附量显著增大,由于此时双电层已显著变薄,因而不能忽略C-S-H表面长程范氏力对C1-离子的吸引作用。     

碳纤维增强有机一无机高分子烧结合金型新材料的研究──（Ⅲ）有机高分子含量及烧结方法的影响

研究了不同有机高分子含量对碳纤维增强ＳｉＣ／酚醛复合体的成型工艺性能、烧结合金的亚微形态及性能的影响。同时，又探讨了不同烧结方法对烧结合金亚微形态及性能的影响。     

材料常数对铁电畴层波色散特性的影响

考虑到铁电畴层波色散方程的复杂性，通过分析其色散曲线的特点，在大量数值计算的基础上，讨论了传播介质的材料常数对铁电畴层波色散特性的影响，找出了传播介质的材料常数对铁电畴层波相速度极小值ｖｍｉｎ及与之相对应的频率因子ｋｈ的影响规律，为铁电畴层波的实际应用提供了理论基础．     

史瓦西黑洞的光子层

建立了光子在史瓦西场中的动力学方程之后，推导出光子层的半径ｒｐ＝３ＧＭ／ｃ＾２并讨论了光子层的某些特征。     

竖炉散料层热交换公式的简化计算及应用讨论

在竖炉内散料层的逆流换热系统中存在这样一个炉气与炉料温度实际相等的区域，据炉气与炉料水当量的变化特征，本文在Ｂ．Ｈ基塔耶夫建立的逆流换热模型公式的基础上、整理出更为简单，清晰的竖炉散料层热交换的简化计算式，并进行了应用讨论。     

K-rich lamellar exsolution in clinopyroxene： Constraint on the depth of peridotite source at Zhimafang

The oriented lamellar K-rich exsolutions within clinopyroxene host were recognized in garnet peridotite massif at Zhimafang in the Sulu ultrahigh pressure metamorphic terrane, eastern China. EMP and TEM analyses revealed that the composition and the index of electron diffraction for this exsolution are corresponding with phlogopite, and the shape is the lamellae with 1 μm in width and 5 to 30 μm in length. Moreover, the topotaxy is that the (001) of K-rich exsolution parallels to (I00) of the clinopyroxene host. The electron diffraction analyzing shows the exsolution is of a 1M polymorphism. The high-resolution lattice fringe image displays the stack features along [001], which only a layer mineral shows. We conclude that the clinopyroxene with IM and K-rich exsolution was probably derived from mantle depths over 240 km, thus resulting from decompressional exsolution in the initial stage of slab exhumation.     

Blue emission from hydrogen-containing a-Si：H／SiO2 multilayers and the investigation of its mechanism

A series of hydrogen-containing a-Si:H/SiO2 multilayers with different a-Si:H sublayer thickness were fabricated by layer-by-layer deposition and in situ plasma oxidation in a plasma-enhanced chemical vapor deposition system (PECVD). Optical induced blue emission from the samples was observed by the naked eye at room temperature, which has never been reported in the luminescence study of Si/SiO2 multilayers up to now. Both the photoluminescence (PL) peak and the absorption edge show a blue shift as the a-Si:H sublayer thickness decreases. The origin of the blue emission and the effect of hydrogen are discussed.     

地下洞室综合防排水系统施工技术

主要介绍了地下洞室“以排为主,防、排、堵、相结合,多道防线,因地制宜”的多层超强复合防排水施工技术。     

新一代网络通信技术--网格

“网格”是网络通信领域的一个新概念、新技术．本文主要是介绍网格的基础知识、体系结构以及国内外研究现状,帮助读者对网格新技术有一定的认识和理解,方便以后进一步深入学习、运用和研究．