低浓度的阴离子洗涤剂实验室内的质量控制

在环境监测中低浓度的阴离子洗涤剂实验室内质量控制应采取以下措施：空白试验值测定，检出限的确定，空白试验的质量控制图，校准曲线的检验，标准样品的测定。     

微粉对矾土基超低水泥浇注料性能的影响

以高铝矾土熟料为主原料 ,加入 2 %的铝酸钙水泥及总量为 6 %的Al2 O3 微粉和SiO2 微粉 ,配制了矾土基超低水泥浇注料 ,研究了微粉对浇注料的烧结性能、力学性能及热震稳定性的影响。结果表明 :(1 )SiO2 微粉对浇注料的促烧结作用优于Al2 O3 微粉。这是因为与Al2 O3 微粉相比 ,由气相沉积生成的SiO2微粉的粒度小 ,比表面积大 ,活性较高。 (2 )随着SiO2微粉加入量的增加 ,在 1 1 0 0℃和 1 4 0 0℃处理后的常温强度以及在 1 30 0℃和 1 4 0 0℃下的高温抗折强度和抗热震性明显提高。这是由于引入的SiO2 微粉在高温下与Al2 O3 反应生成的针状莫来石穿插进入刚玉骨架 ,起着明显的强化和韧化作用     

Water Bloom Precursor Analysis Based on Two Direction S-Rough Set

In the field of water quality management, it is vital to determine the main precursory anomalies from the precursor of intricate water bloom in the context of a given area. In this paper, a water bloom precursor analysis method, based on two direction singular rough set, was proposed. This approach was produced on the basis of the different sections and pre-water bloom of water bloom precursor anomalies and characteristic of elements transferred in singular rough set. For testing the validity of two direction singular rough set application in water bloom precursor analysis, Xiangxi River, which is one of the typical tributaries of Three Gorges Reservoir in China, was selected as study area. The result showed that compared with other indexes, pH and dissolved oxygen (DO) are the most valuable indicators of water bloom in the precursory anomalies. Furthermore, regarding with water bloom precursory anomalies in Xiangxi River, most of the nutrient loading and biological community are the key indicators. Hence, this method can determine the main precursory anomaly for water bloom in the study area, which provides powerful knowledge support to water quality specialists for them to comprehensively analyze precursory anomaly so as to find out its relationship with occurrence law of water bloom.     

氯乙酰氯的市场前景

介绍了氯乙酰氯的生产概况，叙述了氯乙酰氯在医药、农药等领域的应用情况以及氯乙酰氯的市场前景。     

Potential thread-level-parallelism exploration with superblock reordering

The growing number of processing cores in a single CPU is demanding more parallelism from sequential programs. But in the past decades few work has succeeded in automatically exploiting enough parallelism, which casts a shadow over the many-core architecture and the automatic parallelization research. However, actually few work was tried to understand the nature, or amount, of the potentially available parallelism in programs. In this paper we will analyze at runtime the dynamic data dependencies among superblocks of sequential programs. We designed a meta re-arrange buffer to measure and exploit the available parallelism, with which the superblocks are dynamically analyzed, reordered and dispatched to run in parallel on an ideal many-core processor, while the data dependencies and program correctness are still maintained. In our experiments, we observed that with the superblock reordering, the potential speedup ranged from 1.08 to 89.60. The results showed that the potential parallelism of normal programs was still far from fully exploited by existing technologies. This observation makes the automatic parallelization a promising research direction for many-core architectures.     

含碳氨水集成分离新技术的应用

通过应用含碳氨水集成分离技术改造氨回收装置，提高了分离效率及处理通量，经济与环保效益显著，氨回收率达９９％，处理量提高６０％，塔阻力下降８０％，蒸汽耗量下降４２％，装置出口废液含氨量达国家一级排放标准。     

天然气转化制取合成气工艺方法

天然气（ＣＨ４）转化制得ＣＯ＋Ｈ２合成气可以生产氨、甲醇及有机化工产品，需要按照转化原理进行工艺优化，以节省原料消耗，满足合成产品对组分要求．     

钒硅中孔分子筛的合成、表征及其催化性能研究

在碱性环境中，采用水热合成法制备得到了不同硅钒比的钒硅中孔分子筛V－MCM－41，利用XRD，IR，TG等表征方法考察了钒的搀杂量与其结构和性能之间的关系，该催化剂对苯乙烯氧化反应具有较好的催化活性，在一定的反应条件下，以H2O2溶液（30％）为氧化剂，以乙腈为溶剂，V－MCM－41（Si/V=25)能使苯乙烯的转化率达到95％以上，产物（苯甲醛＋苯甲酸）的选择性不低于90％。     

螺旋槽管外含高浓度不凝组分蒸汽冷凝传热研究

分析了含高浓度不凝组分蒸汽在立式螺旋槽管表面强制对流冷凝的传热机理。在不凝性组分体积百分浓度超过９０％时，螺旋槽管的强化传热效果不明显，而含量为４４％～９０％时，螺旋槽管总换热系数比光滑管提高２０％～３５％。     

PHOTOCATALYTIC OXIDATION OF ALDEHYDES/PCE USING POROUS ANATASE TITANIA AND VISIBLE-LIGHT-RESPONSIVE BROOKITE TITANIA

We have synthesized an annealed porous aerogel titania (LUAG2), which demonstrates a very high photocatalytic activity for aldehydes and perchloroethylene (PCE) photocatalytic oxidation (PCO) in gas phase under blacklight and fluorescent light irradiation. LUAG2 has a BET surface area of 237 m²/g and a porosity of 0.31 (volume fraction). X-ray diffraction (XRD) analysis shows LUAG2 is nearly pure anatase. It has improved the destruction of PCE and aldehydes as a group by 10-34% with black light compared to Degussa P-25. The optimum water vapor to butyraldehyde molar ratio is around 1/3. LUAG2 also shows better mineralization to CO₂ than Degussa P-25 TiO₂ does. Under irradiation of a 4 W fluorescent lamp LUAG2 gives a consistently higher conversion than that of Degussa P-25. The highly active photocatalyst indicates potential applications in indoor and outdoor environmental pollution control. A visible-light-responsive TiO₂, NTB 200, is also investigated for comparison purposes.