Compound stabilization/solidification of MSWI fly ash with trimercapto-s-triazine and cement

A new treatment technology of municipal solid waste incineration (MSWI) fly ash is presented in this paper. Feasibility of solidification/stabilization treatment of MSWI by successively adding trimercapto-s-triazine and cement, and the effect of addition, fly ash size and curing time were studied by batch tests. The results showed that MSWI posed a huge environmental risk, the partial distribution showed normal distribution approximately. Treatment of fly ash with trimercapto-s-triazine and cement showed a good effect, the leaching toxicity of treated fly ash solidified blocks with 2% trimercapto-s-triazine and 20% cement could meet the standard for pollution control on the landfill site of MSW in China after curing for 7 days, and the flexural strength of solidified blocks could reach 2.4 MPa. Ground fly ash had a positive effect on both leaching toxicity and strength.     

Structure study on the thermoelectric materials CexCo4Sb12 (x = 0.5, 1.0) by neutron diffraction

In order to understand the relationship between crystal structure and thermoelectric properties, the neutron diffraction patterns of the thermoelectric materials with the nominal composition Ce_xCo₄Sb₁₂ (x = 0.5, 1.0) were measured at room temperature, the data were fitted by the Rietveld profile refinement method using the Fullprof2k program. It is found that the sample Ce_0.5Co₄Sb₁₂ is composed of two phases, its major phase is CoSb₃ with skutterudite-structure and the Ce atom is not incorporated into the lattice, the impurity is monoclinic CoSb₂. In the case of Ce_1.0Co₄Sb₁₂, the major phase is filled skutterudite, about 10% of the 2a site is occupied by Ce atom, the second phase is monoclinic CoSb₂.     

用PowerBuilder实现标签页式应用程序界面

标签页式用户界面简洁、清晰，适用于从小型到大型的各类数据库应用程序。本介绍一种基于PowerBuilder和PFC的标签页式界面的实现方法。     

含3-三氟甲基的均三唑并[3,4-b]-1,3,4-噻二唑类化合物的合成

以 3-三氟甲基 - 4-氨基 - 5 -巯基 - 1 ,2 ,4-三唑为原料 ,分别与 2 - ,3- ,4-吡啶甲酸及α-萘乙酸在 POCl3催化下反应 ,制得 4种新的 3-三氟甲基 - 6-取代均三唑并 [3,4- b]- 1 ,3,4-噻二唑( 3a～ 3d) ,并利用 EA,IR,1H NMR等确定了其结构     

滑步与再同步过程的微观结构分析

按照定常两机电力系统平衡点的属性，将其轨迹分类为稳定的结点、不稳定的结点、稳定的焦点、不稳定的焦点和鞍点这5种不同运动模式。利用互补群惯量中心(CCCOI)：R^n→R^2保稳映射将实际多机受扰轨迹映射为时变的两机等值轨迹，进而分析后者如何由对应于上述运动模式的多个轨迹段构成，并用符号序列反映其微观结构。以电力系统从一连串的滑步进入再同步为例，研完了多机电力系统的后期动态行为会随着参数的细微变化而显著改变的现象。如果一段具有鞍点特性的相轨迹的起始点从稳定流形的一侧变到另一侧，那么不论系统参数的变化多么细微，其后继轨迹将有完全不同的动态。     

技术进步在经济增长中的定量描述

本文运用二元回归余值方程对GM厂在经济增长中的技术进步进行了估算和预测。     

提高学生制图能力灼见

本文对如何提高学生制图能力,适应工作需要,提出一些看法和做法。     

GaN Nanorods Catalyzed with Mo: Effect of Ammoniating Time on Microstructure,Morphology, and Optical Properties

GaN nanorods have been successfully grown on Si (111) substrates by magnetron sputtering through ammoniating Ga₂O₃ thin films catalyzed with Mo. The influence of the ammoniating time on the growth of GaN nanorods was analyzed, in particular, by X-ray diffraction (XRD), X-ray photoelectron spectroscopy, Fourier transform infrared (FT-IR) spectrometer, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and photoluminescence (PL) spectrum. The results demonstrate that the GaN nanorods are single crystal with hexagonal wurtzite structure, which have high crystalline quality. The GaN nanorods after ammoniation at 1223 K (950 °C) for 20 minutes have good emission properties and the highest crystalline quality with 100- to 200-nm diameter and several-micron length. The growth direction of these nanorods is along the orientation of (100) crystal plane. A small red shift occurs because of the band-gap change caused by the tensile stress of the one-dimensional GaN nanorods along the axial direction.     

Formation cross sections of nuclei with (n,2n) reactions

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