阳离子的

In acid pulp, the depressing abilities of reagents on diaspore are in the order of hydroxamic acid starch＞dialdehyde starch＞carboxymethyl starch＞cationic starch＞primary starch. In addition, hydroxamic acid starch and carboxymethyl starch can activate kaolinite without influence on the recoveries of pyrophyllite and illite, so the two reagents have great potential and prospect to be the depressant of diaspore and the activator of kaolinite in bauxite reverse flotation.(3) By oximation of the copolymer of acrylamide and methyl acrylate, hydroxamic acid polyacrylamide is synthesized.

3对丙烯酰胺和丙烯酸甲酯的共聚物肟化制得氧肟酸聚丙烯酰胺，将它同非离子聚丙烯酰胺、阴离子聚丙烯酰胺、阳离子聚丙烯酰胺和两性聚丙烯酰胺分别应用于四种矿物的单矿物浮选试验，结果显示，改性聚丙烯酰胺对一水硬铝石、高岭石和伊利石均具有活化作用，其中，药剂对高岭石的活化最强，使它的回收率在整个pH值范围达到80％左右，在一定pH条件下超过一水硬铝石的回收率，解决了高岭石难浮选的问题。

The apoplasmic charater of ectomycorrhizal roots of Larix seedlings infected with Paxillus involutus was examined using the cathnic colloidal gold. The result showed the density and distribution of anionic binding sites were different in sheath and Hartig net. The negative charger in the outer part of the sheath was slightly low. It increased graduately from outer to inter sheath. The negative charger density rised higher in the inter part of the sheath and then decreased graduatedly from the sheath to Hartig net. This may be related to nutrient uptake and atransport in ectomycorrhizal roots.

利用阳离子胶体金探针研究日本落叶松和卷缘桩菇形成的外生菌根质外体的特性，结果表明，外生菌根质外体负电荷分布是不均一的，在菌套外侧负电荷比较低，向内侧逐渐增高，在靠近单宁层菌套菌丝细胞壁负电荷密度最高，再向内侧过度到哈蒂氏网又呈现出明显逐渐下降的现象，而且在哈蒂氏网负电荷主要分布在植物的细胞壁，真菌菌丝细胞壁负电荷很少。

The results of research showed that compound ferrous flocculant has simple preparation and not any second pollution matter is produced to the environment, it has big and stout floes formation and fast speed sedimentation while dealing with waste water, it is positively charged according to the electrophoresis, it belongs to cationic flocculant, can gives better coagulation results in turbidity removal, color removal, the maximum removal rate of turbidity and color are 95.4% and more than 81.7%, respectively. There are interactions between polysilicic acid and hydrolyzed ferrous species, the compound ferrous with appropriate Si/Fe not only but also can lower the water treatment cost. The compound ferrous removes colloid particles in water by charge oxidation-reduction, neutralization and furl mechanism.

研究结果表明：复合亚铁制备工艺简便，无二次污染；处理水样时产生的矾花大，密实、沉降速度快；复合亚铁带电性为正，为阳离子型絮凝剂；复合亚铁具有较好的除浊、脱色能力，除浊率及脱色率最高分别可达95.4％及81.7％；在复合亚铁中，聚硅酸与亚铁的水解产物间存在着相互作用，合适的硅铁摩尔比有利于提高混凝效果，而且还可以降低投药成本；复合亚铁是通过氧化还原、吸附电中和及卷扫三种作用机理起混凝作用的。

The sectored periodic table, which can be used to the study of crystal chemistry, has been put forward.

论文的第一部分在分析了金属半径、阳离子半径、元素标准熵、原子折射度等与元素电子构型的定量关系后，鲜明地提出：晶体化学参数与元素的电子构型之间存在定量关系，元素的一些性质与周期表之间可以有统一的定量表述方式。

Chapter three is the degradation of Abamectin in soils. The results show:(1) The decomposition of Abamectin is fastest in Aquic Cambosols while slowest in Udic Cambosols in five kinds of different soils.(2) Organic matter content in soil is the most important factor which influences the degradation half-life of Abamectin in soil, and their relative coefficient arrives at 0.9323, but pH value, total nitrogen, CEC and field maximum moisture capacity correlate little.(3) Soil organic matter, soil temperature and pesticide concentration can obviously affect Abamectin degradation in soil, in addition, the degradation half-life of Abamectin in sterilized soil is far more than that in non-sterilized soil, which maybe contributes to microorganism in soil. Chapter four is the microbial degradation of Abamectin.

第三章研究了阿维菌素在土壤中的降解，结果表明：(1)五种不同类型土壤中，阿维菌素在潮湿雏形土中降解最快，而在湿润雏形土中降解最慢；(2)土壤有机质含量与阿维菌素半衰期相关性较强，相关系数为0.9323，而土壤酸碱度、总氮含量、阳离子交换量和田间最大持水量等因子与阿维菌素半衰期相关性较小，说明影响阿维菌素在土壤中降解的最主要因子为有机质含量；(3)土壤有机质、土壤温度和农药浓度等因素对阿维菌素在土壤中的降解有较大影响，此外灭菌条件下其降解半衰期远大于未灭菌时的半衰期，这表明阿维菌素在土壤中的降解可能和土壤微生物有关。

The result shows that when HPLC adopts 254 nm as scan wavelength, and the mixture of acetonitrile and water according to appropriate proportion as flowing phase, the parameters such as accuracy, repetition and precision et al for the method are all good to satisfy the essential rules of pesticide residue determination.Chapter three is the degradation of Abamectin in soils. The results show:(1) The decomposition of Abamectin is fastest in Aquic Cambosols while slowest in Udic Cambosols in five kinds of different soils.

第三章研究了阿维菌素在土壤中的降解，结果表明：(1)五种不同类型土壤中，阿维菌素在潮湿雏形土中降解最快，而在湿润雏形土中降解最慢；(2)土壤有机质含量与阿维菌素半衰期相关性较强，相关系数为0.9323，而土壤酸碱度、总氮含量、阳离子交换量和田间最大持水量等因子与阿维菌素半衰期相关性较小，说明影响阿维菌素在土壤中降解的最主要因子为有机质含量：(3)土壤有机质、土壤温度和农药浓度等因素对阿维菌素在土壤中的降解有较大影响，此外灭菌条件下其降解半衰期远大于未灭菌时的半衰期，这表明阿维菌素在土壤中的降解可能和土壤微生物有关。

The results show that the surfactant species impact apparently on the purity, dispersion degree and particle size of the reducing sample. The non-ion surfactants can improve the dissemination of ultrafine silver particles, but both the dispersive effects of cation and anion surfactants are unapparent.

结果表明：表面活性剂的种类对制备样品的纯度、分散性和颗粒大小有着重要的影响，其中阳离子表面活性剂和阴离子表面活性剂的分散效果不明显，非离子表面活性剂的分散效果最好。

It has developed the BIO DRY, mold preventive, anti-bacterial preventive, positive ion anti-mildew packing paper and all kinds of anti-mildewpackaging, and has resolved the problem of damping, mildewing and smelling strangely of leather products,textile, furniture, toy and precise electronic products.

贝傲有限公司是一家集设计、检测、生产、销售于一体国际化企业，并致力于防潮，防霉，抗菌领域的研发推广，开发了BIO DRY 生化干燥剂，防霉抗菌剂，阳离子防霉包装纸及各类防霉包装，解决了皮革制品、纺织品、家具、玩具、高精电子制品的受潮、霉变、产生异味的困扰，为出口产品的运输，仓储提供了有效的保障，被誉为出口贸易的保护神。

Bio Armor Anti-bacterial Company is an international enterprise concentrating on design, detection,production and sales, engaging in the developing and expanding in the field of humidity proof, mildew proof and anti-bacterial. It has developed the BIO DRY, mold preventive, anti-bacterial preventive, positive ion anti-mildew packing paper and all kinds of anti-mildewpackaging, and has resolved the problem of damping, mildewing and smelling strangely of leather products,textile, furniture, toy and precise electronic products. It provides effective guarantee for the transportation and storage of the exported products and obtains the fame of protection god of international trade

贝傲有限公司是一家集设计、检测、生产、销售于一体国际化企业，并致力于防潮，防霉，抗菌领域的研发推广，开发了 BIO DRY 生化干燥剂，防霉抗菌剂，阳离子防霉包装纸及各类防霉包装，解决了皮革制品、纺织品、家具、玩具、高精电子制品的受潮、霉变、产生异味的困扰，为出口产品的运输，仓储提供了有效的保障，被誉为出口贸易的保护神。

It has developed the BIO DRY, mold preventive, anti-bacterial preventive, positive ion anti-mildew packing paper and all kinds of anti-mildewpackaging, and has resolved the problem of damping, mildewing and smelling strangely of leather products,textile, furniture, toy and precise electronic products.

企业介绍：广州佳伲思贸易有限公司是一家集设计、检测、生产、销售于一体国际化综合性企业，并致力于防潮，防霉，抗菌领域的研发推广，开发了BIO DRY 生化干燥剂，防霉抗菌剂，阳离子防霉包装纸及各类防霉包装，解决了皮革制品、纺织品、家具、玩具、高精电子制品的受潮、霉变、产生异味的困扰，为出口产品的运输，仓储提供了有效的保障，被誉为出口贸易的保护神。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。