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The function mechanism among the minerals and floatation drugs had been studied with the way of IR and academic calculation, which pointed out that absorption of G-4 on the surface of phosphorite belonged to physical and chemical types, but the chemical one was in the highest flight. Absorption of amine collector named GE-609 on the surface of quartz belonged to electrostatic and physical type. Distilled water could hardly wash the GE-609 down from the surface of quartz. Leading component of S-721 was the concentrated compound of naphthol sulfonic acid and formaldehyde. The compound had a stronger affinity to the Mg~(2+) on surface of dolomite than the Ca2+ on surface of phosphorite, which is the essential reason in the separation of phosphorite and dolomite. The leading components of soluble glass in function were HSiO3 hydronium and F^SiC^ colloid granule.

通过红外光谱测定以及理论计算的方法研究了选矿药剂与矿物间的作用机理,研究表明:脂肪酸捕收剂G-4对胶磷矿的捕收作用是以化学吸附为主、化学吸附与物理吸附共同作用的结果;胺类阳离子捕收剂GE-609在石英表面的吸附属于静电物理吸附,但很难用水洗的方法使GE-609从石英表面脱附;S-721主要成分为萘酚磺酸与甲醛的缩合物,萘酚磺酸与甲醛的缩合物对白云石表面Mg~(2+)的吸附明显强于对胶磷矿表面Ca~(2+)的吸附,这是胶磷矿与白云石分离的根本原因;水玻璃溶液中对石英起抑制作用的主要组分是HSiO_3~-和H_2SiO_3胶粒,水玻璃除对石英起抑制作用外,对矿浆还具有一定的分散作用。

Preparation and corrosion resistance of stannate conversion coatings on Mg-10Li-1Zn alloys;2. The corrosion resistance of phytic acid conversion coatings on AZ91D magnesium alloy surface was studied by electrochemical methods.

利用电化学方法研究了AZ91D镁合金表面植酸转化膜耐蚀性能;借助SEM、EDAX和FTIR等方法分析了转化膜的形貌、成分和官能团构成等,并对成膜机理进行了研究。

Accessions from subgenus Amygdalus, subgenus Prunus, subgenus Armeniaca, subgenus Cerasus were studied by RAPD technology and clustered according to mentioned phylogenic contents. Polymorphic information contents were calculated among species in subgenera and demes in P.

运用RAPD技术对223个桃、李、杏、梅、樱类植物进行分子标记,采用聚类方法对上述内容研究,综合两种方法研究结果,探讨桃亚属植物分子系统发育关系,并对引物在各类间的多态信息量分析。

In addition,the theory of local supersation and epitaxy in the urolith growth hypothesis can also be introduced into formation theory of sedimentary oolites,concretes and oncolites.

此外,本文首次介绍了热发光方法研究沉积鲕石和尿路结石的成果,并认为这一研究方法仍有继续深入探讨其应用范围的潜力。

The content of the nickel and phosphorus in the coating was tested by the electron probe method, the influence of temperature and time of heat treatment on the crystallization structure by the X diffraction method, and corrosion resistance by the volt-ampere curve method.

采用电子探针方法测定了镀层中镍磷含量,X衍射方法研究了热处理对镀层结构的影响,伏安法研究了热处理对镀层耐蚀性的影响。

Using the one-atom theory, the electronic structures of Pt-electrocatalyst with fcc structure was determined as follows:(5dn)6.48 (5dc)2.02 (6sc)1.48(6sf)0.02. Compared to the result obtained by the first-principle method such as FP-LMTO, CASTEP, their results are in good agreement with each other. Comparing the calculations of physical properties such as lattice constants, cohesive energy and bulk modulus by OA method and first-principle method, the result obtained by OA method is in excellent agreement with experimental value, but the result obtained by first-principle method is not accordable. The relationship between the electronic structures and catalytic performance was explained qualitatively by OA method and first principle method according to its electronic structures. Because the d-orbital vacancies increases and static density is high around Fermi energy band, Pt has good catalytic performance.

摘 要:依据纯金属单原子理论确定面心立方结构电催化剂Pt的电子结构为(5dn)6.48(5dc)2.02-(6sc)1.48(6sf)0.02,与采用第一原理的FP-LMTO和CASTEP等方法所计算的电子结构相比较,其结果非常相近;由OA理论和第一原理方法计算的晶格常数、结合能、体弹性模量等物理参数进行比较,OA理论计算的结果与实验值较符合,而第一原理方法计算的结果与实验值相差较大;在此基础上用OA理论和第一原理方法研究了Pt的电子结构与催化性能的关系,由于d带空穴增多和费米能级附近态密度较高,导致金属Pt的催化性能很好。

The expression of VEGFmRNA was valued by in situ hybridation method and the expression of Fit-1 and MV count was investigated by using immunohistochemical method.

应用原位分子杂交方法研究VEGFmRNA的表达,应用免疫组化方法研究Flt-1表达及MV的计数。结果:增生性瘢痕和瘢痕疙瘩组织中MV数目多於正常皮肤和扁平瘢痕组织中的MV数目。

According to all-around investigating on wild Lonicera fragrantissima in various mountainous areas of Henan Province, this article has maken clear Lonicera fragrantissima regional distribution, Total resources quantity, biologic characteristics, ecologic characteristics, natural distribution patterns, the value of development and utilization, using form, cuttage and breeding technology, the collection and protection of wild idioplasmic resources and so on. It detailedly describes wild resources distribution, biologic characteristics and ecologic characteristics. It has classified and selected a batch of superior trees according to the differences in fruits shape, fruits color, leaf shape and shape of the crown of trees. It has based on the nutrition and medication ingredient analyzed the using methods of fruits and leaves, and the way of exploitation.Through the experiment on Lonicera fragrantissima cuttage and breeding technology, transplant and domestication technology, it has provided the concrete technical measure of idioplasmic resources use and the preservation for Lonicera fragrantissima.

本文通过对河南省各山区野生郁香忍冬资源的全面调查与研究,摸清全省郁香忍冬资源的区域分布、资源总量、生物学特性、生态学特性、自然类型与经济性状、郁香忍冬的开发利用价值、利用形式、扦插育苗技术和野生种质资源收集保存与保护方法措施等,对河南省郁香忍冬野生资源的分布,生物学特性、生态学特性进行详细描述总结;根据果形、果色、叶形、冠形的差异性进行了类型划分,并选出了一批优树;根据果实、叶片中的营养与药用成分分析、果、叶利用方法研究,分析了其开发利用途径,并开展了郁香忍冬扦插育苗试验和苗木移栽训化试验,为郁香忍冬种质资源利用和保存提供了具体技术措施,其主要结果如下: 1、郁香忍冬属中性偏阳的低矮灌木树种,在灌木坡上当其处于上层空间时或纯林分布时,生长最好。

The relative stabilities and probable proton transfer in isolated and monohydrated 2-hydroxyimidazole molecules have been studied in gas phase using ab initio (MP2/6-31+G *) method.

采用从头算方法在MP2/6-31+G*水平上研究了2-羟基咪唑分子在孤立分子和一水合物的异构体的相对稳定性和可能的质子迁移反应,分析了一个水分子的参与对2-羟基咪唑分子异构体的相对稳定性和质子迁移速率的影响,采用Monte Carlo模拟方法研究了反应体系在水溶液中反应的溶剂化效应。

In order to further understand the dependence of bioactivities on the structure of new fluorine-containing pesticidal compounds to build up significant ligand-receptor models, and to find out the pharmacophores of these analogues, 3D-QSAR analyses have been carried out with DISCO, CoMFA and Leapfrog approaches on the basis of our previous classical QSAR study. Firstly, the compounds were classified according to their structures.

为了能更深入地认识含氟新化合物作为农药的生物活性和其结构间的关系,建立有意义的药物-受体作用模型,寻找同类化合物的药效团,对合成的含氟化合物在经典QSAR方法研究的基础上,又进一步运用DISCO,CoMFA和Leapfrog方法研究了它们的三维构效关系。

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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意,我建议我们在价格上大家各让一半。

After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.

一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。