钉螺静水和动水沉降试验研究

推导了钉螺静水沉速、动水沉速和动水沉降距离公式,这些公式是以螺龄为基本参数进行计算的,并通过试验测定了各项系数,分析了钉螺静水沉降和动水沉降的基本规律     

稠油热采添加剂现场蒸汽吞吐试验

对经室内研究筛选出的一种稠油热采添加剂进行了工业化试生产，产品各项性能指标均达到了预期目标．经井楼、古城油田１０口井现场蒸汽吞吐试验，取得了显著的效果，成功率达１００％．不考虑吞吐周期自然递减，共核实增产稠油２０３８９ｔ；平均单井试验周期增产２０３９ｔ，增产率达８０３％；吞吐油汽比提高了０２４；回采水率达到１０１％，提高５８１％；投入产出比为１比１２７．试验表明，该添加剂对地层无损害．还对添加剂的增产机理进行了讨论．     

含多硫基S~（2－）_6及3－Mep_y配体的锌配合物性能的研究

标题化合物采用锌粉、硫粉及３－甲基吡啶（３－Ｍｅｐｙ）直接反应而得，是金黄色晶体，不溶于水及ＣＳ２．结晶学参数：三斜晶系，Ｐ１空间群，ｚ＝２，α＝０９２１１（２）ｎｍ，ｂ＝０９８１３（２）ｎｍ，ｃ＝－１１４８４（２）ｎｍ，α＝９７０４（１）°，β＝１０４８５（１）°，γ＝６１９９（１）°，υ＝０８８５９ｎｍ３，元素分析确定化学式为ＺｎＳ６（ＣＨ３Ｃ５Ｈ４Ｎ）２，对标题化合物进行红外光谱，紫外可见光谱归属，同时进行热分析，循环伏安以及萤光性能的研究．结果发现标题化合物具有萤光性能，并在温度大于１２０℃开始分解，３００℃以上全部分解，最后产物为ＺｎＳ     

酸度对水杨醛缩异烟肼酮式—烯醇式互变及其配位性能的影响

用ＵＶ、ＩＲ研究了酸度对水杨醛缩异烟肼酮式烯醇式互变及其配位性能的影响．研究表明：固态物以酮式为主要存在形式且存在分子内氢键，溶解后，酮式与烯醇式的比例依溶液酸度而异，当ＨＣｌ浓度＞７１１６×１０－３ｍｏｌ／Ｌ时，以共轭体系较小的酮式存在，当ＮａＯＨ浓度＞４１４×１０－３ｍｏｌ／Ｌ时则以共轭体系较大的烯醇式存在．通过对其Ｃｕ（Ⅱ）配合物的合成与表征，证明当ＨＣｌ浓度＜００５ｍｏｌ／Ｌ时可合成１∶１型配合物，仅当ＨＣｌ浓度≥００５ｍｏｌ／Ｌ时，才可获得１∶２型配合物     

固态继电器在水舱气阀控制中的应用

介绍了固态继电器的组成、特点和分类，及其在减摇水舱模型性能试验气阀控制中的应用，试验表明，固态继电器能够满足水舱气阀控制的要求。     

用DSP实现不规则波作用下台架电液力矩伺服系统控制器设计

船舶减摇水舱试验台架是研究减摇水舱特性的重要试验设备，而能否准确地模拟船舶在海浪中的横摇运动是设计试验台架的关键，介绍了用DSP实现不规则波作用下电液力矩伺服系统控制器并应用于减摇水舱试验台架，试验结果表明，加入DSP控制器后系统性能得到很大改善．     

明矾制硫酸钾和氧化铝的研究

对明矾进行了ＴＧ、ＤＴＡ分析，选择了明矾焙烧制Ｋ２ＳＯ４与Ａｌ２Ｏ３的试验影响因素．用Ｌ２７３１３正交表筛选出温度８７０℃、焙烧时间２５ｈ、粒径０９ｍｍ的较优焙烧参数．经３次重复试验得Ｋ２ＳＯ４产品的纯度为９９％，得率为９７４３％；Ａｌ２Ｏ３产品的纯度为９７２８％，得率为９９％     

Tb（Ⅲ）配合物[Tb（C18H20N2O4）（NO3）3]的合成和晶体结构

合成了配合物［Ｔｂ（Ｃ１８Ｈ２０Ｎ２Ｏ４）（ＮＯ３）３］,配体为２羟基３甲氧基苯甲醛与乙二胺缩合而成的双希夫碱．配合物晶体为单斜晶系,空间群Ｐ２１／ｎ,ａ＝１４１８６（３）ｎｍ,ｂ＝１１８４８（２）ｎｍ,ｃ＝１４６２６（３）ｎｍ,β＝１０４３５（３）°,Ｖ＝２３８２（１）ｎｍ３,Ｄｘ＝１８７２ｇ／ｃｍ３,Ｚ＝４,μ＝３０７５５ｍｍ－１,Ｆ（０００）＝１３２０,Ｒ＝００４７,Ｒｗ＝００５６．Ｔｂ（Ⅲ）的配位数为１０,配位几何构型为双帽四方反棱柱．所有配位原子都是氧原子．对该配合物进行了差热热重分析．     

云南某铅锌矿全尾砂膏体室内实验研究

对云南某铅锌矿采用全尾砂膏体充填方案开展了室内实验研究,分析了全尾砂基本物理化学性质(粒级组成、化学成分),并进行了全尾砂自然沉降试验、坍落度试验、全尾砂试块单轴强度试验,获得了全尾砂及全尾砂胶结料的自然沉降特性、流动性能、析水性能及强度特性.试验结果显示:全尾砂自然沉降2~3 h后,重量浓度达到72%~76%,需要添加絮凝剂加快沉降;全尾砂胶结料的重量浓度为78%~79%时,坍落度为24~17 cm,基本无析水(1%~0.6%),充填料呈膏体状态,适合长距离输送;全尾砂膏体配合比在1∶4~1∶12时,28 d单轴抗压强度达到1~4 MPa.室内实验初步表明该矿山可以采用全尾砂膏体充填方案.     

西双版纳橡胶林枯落物的持水性能与截留特征

通过野外调查、浸泡试验和模拟降雨实验,测定了西双版纳地区橡胶林枯落物储量、持水能力和截留降雨特征。结果表明:20和40年生的橡胶林枯落物储量分别为8896和6181 t／hm2,其叶、枝、种子果壳和其他部分生物量所占比例分别为571 ％、102 ％、322 ％、04 ％和704 ％、137 ％、154 ％、05 ％;20年生的橡胶林枯落物最大持水率为18036 ％,高于40年生的值（17459 ％）;枯落物吸水速率与浸泡时间之间关系式为S=ktn,前2 h是枯落物主要持水阶段。模拟降雨条件下,橡胶林枯落物截留量随雨强和枯落物厚度增大而增加;截留率与降雨量呈极显著幂函数关系,但受雨强的影响不显著,在80～480 mm的降雨范围,截留率变化幅度为202 ％～1250 ％,截留能力较弱。     

Exclusive gene mapping of congenital microphthalmia in a Chinese family

Congenital microphthalmia is a developmental ocular disorder and might be caused by the mutations in the genes involved in eye development. To uncover the genetic cause in a six-generation Chinese pedigree with autosomal dominant congenital microphthalmia, we performed genescan and linkage analysis in this family. Fourteen microsatellite markers on chromosomes 3, 11, 14 and 15 were selected as genetic markers according to the five pre-viously reported loci associated with microphthalmia (MITF, SOX2, PAX6, MCOP and NNO2). The genomic DNA of each member in the pedigree was amplified with 14 pairs of fluorescence labeled primers. Genome screening and genotyping were conducted on ABI377 DNA sequencer and linkage analysis was performed with Linkage software package. All two-point LOD scores of linkage analysis between the suggested disease genes and microsatellite markers were <-2, which indicated that none of the five genes were responsible for microphthalmia in this Chinese family. Microphthalmia in this family may be caused by mutation in a new gene which is essential in eye development.     

双蓝色基BG染料的合成及其溶解度的改善(英)

本文以溴氨酸与二氨基二苯甲烷为原料合成了双蓝色基BG染料，采用了正交实验设计方法确定了其最佳条件，产品的收率达（85～90）％．进而，选择性地加入诸如分散剂NNO、乳化剂OP－10和减水剂K，改善其溶解性能，并采用UV－vis、FTIR和HPLC对该合成染料进行了表征．     

原位聚合法制备微胶囊相变材料及其性能研究

本文通过原位聚合法制备了以脲醛树脂为壁材的微胶囊相变材料。采用SEM,DSC,光学显微镜等测试仪器考察了乳化剂种类、用量及乳化转速对微胶囊性能的影响;分析了助剂NaCl和分散剂NNO的用量对微胶囊微观形态、相变潜热和平均粒径的影响。实验结果表明,在乳化转速为3000rpm下,使用用量占芯材质量5%的复合乳化剂合成的微胶囊热性能良好,球体表面光滑,粒径均一。加入NaCl溶液后,微胶囊的相变潜热增加;当NaCl浓度为10%时,相变潜热达到最大,包覆率达到92.04%。同时加入占芯材质量2%的NNO,微胶囊的分散性好。     

Constraining the atmospheric N2O budget from intramolecular site preference in N2O isotopomers

Nitrous oxide (N2O) is an important trace gas in the atmosphere. It is an active greenhouse gas in the troposphere and it also controls ozone concentration in the stratosphere through nitric oxide production. One way to trace the geochemical cycle of N2O is by measuring the natural abundance of stable isotopes, namely 15N and 18O (refs 2-15). Here we report the intramolecular distribution of 15N within the linear NNO molecule, determined by measuring molecular and fragment ions of N2O on a modified mass spectrometer. This revealed a preference for 15N at the central N position, or alpha-site, within N2O isotopomers (isotope-containing molecules). Moreover, this preference varied significantly throughout the atmosphere. In the troposphere, low alpha-site preference indicates local emission of N2O from soils and fossil-fuel combustion, each with distinct isotopomer signatures, which then mixes with background N2O. In the stratosphere, on the other hand, loss of N2O is observed as enhanced alpha-site preference for 15N, due to fractionation during ultraviolet photolysis of N2O. We have constructed an atmospheric mass balance of N2O, incorporating isotopomer abundance, which shows that the intramolecular distribution of 15N is a parameter that has the potential to increase significantly the resolution with which sources and sinks of N2O can be identified and quantified in the atmosphere.     

An experimental study of tin partition between melt and aqueous fluid in F/Cl-coexisting magma

In order to investigate the formation mechanism of tin ores associated with F-bearing granite, an ex-perimental study of tin partition between F-bearing granitic melt and coexisting HCl-bearing aqueous fluid was conducted at 850℃ and 100MPa with fo2 approaching NNO. Geochemical behavior of tin was traced by changes in starting solid materials with different alumina saturation index ASI, in F content and in starting fluids of various HCl concentrations. The results show that DSn increases with ASI of melt and peraluminous melt is favorable for tin partition into aqueous fluid in the F/Cl-coexisting sys-tem. Aqueous fluid of higher HCl concentrations is advantageous for enrichment of tin. Furthermore, chlorine contents in glass run products correlate positively with F and Cl contents in the magma. In the F/Cl-coexisting system, granitic melts with high F contents (> ~1 wt%) could extract and enrich tin in the melt which can serve as a reservoir for the formation of tin ores. However, the partition coefficient of tin would increase significantly when F contents in the melt were below 1 wt%. Therefore, the de-crease of F contents is favorable to the partition of tin into aqueous fluid with high HCl contents, thus promoting deposition of hydrothermal tin ores.     

Er3+/Y3+/Yb3+共掺杂氧化铝光致发光增强研究

采用sol-gel法制备了不同摩尔比例的Er3+/Y3+/Yb3+共掺杂Al2O3粉末.X射线衍射(XRD)结果表明各样品均以δ-Al2O3为主相.利用荧光光谱仪测试各样品的光致发光(PL)谱,结果表明Y3+的共掺杂明显的提高了Er3+的PL强度.Er3+/Y3+/Yb3+共掺杂Al2O3粉末的PL强度随着Yb3+浓度呈先增大后减小的变化,Er3+∶Y3+∶Yb3+的摩尔比例为1∶20∶10时,样品的PL强度在Y3+共掺杂的Er3+∶Al2O3粉末的PL强度提高了7倍的基础上进一步提高了近4倍,说明Er3+/Y3+/Yb3+的共掺杂能够更有效地提高Er3+的PL强度.     

一缩二甘醇酸体系荧光法同时测定钆和铽的研究

本文研究了 Gd~(3+),Tb~(3+)与一缩二甘醇酸所形成的络合物的荧光性能及其发光机理;探讨了 Gd~(3+),Tb~(3+)同时测定的最佳条件和共存离子的影响;开发了同时测定 Gd~(3+),Tb~(3+)的高灵敏度荧光新体系,检测限分别达到 Tb~(3+)3ppb,Gd~20.16ppm。应用本体系测定了稀土氧化物中的 Gd_2O_3和Tb_4O_7含量,取得了满意的结果。     

GdBO_3中Bi~(3+)、Sm~(3+)的发光和能量传递

研究了在紫外光(UV)激发下,Bi~(3+)、Sm~(3+)单掺杂和共掺杂的GdBO_3的发射光谱、激发光谱及发光强度随组成变化的规律。发现在GdBO_3:Bi,Sm体系中,Bi~(3+)和Gd~(3+)对Sm~(3+)的发光均有敏化作用。Bi~(3+)的绝大部分能量是通过Bi~(3+)→Gd~(3+)→(Gd~(3+))_n→Sm~(3+)途径传递给Sm~(3+)的,Gd~(3+)在能量传递中起中间体作用。研究了Bi~(3+)→Sm~(3+)的能量传递机理为电偶极—电偶极相互作用的共振传递。根据406nm激发下GdBO_3:Sm体系中Sm~(3+)发光强度与浓度的关系,证明了Sm~(3+)自身浓度猝灭的机理也为电偶极—电偶极相互作用。     

CaTiO3:Pr3 红色磷光体余辉性能的改进

采用高温固相法制备了CaTiO3:Pr3 ,X3 (X3 ＝Gd3 ,Dy3 ,Tb3 ,Eu3 )红色长余辉发光材料,对其余辉衰减曲线、激发光谱、发射光谱和X射线衍射谱进行了测试与分析讨论.就余辉衰减曲线来看,除Gd3 外,其余3种离子对余辉性能均有一定程度的改善.激发光谱为一宽带谱,共掺杂后主、次激发峰发生红移,在458,478,482 nm和496 nm处的激发光谱强度大大增强.发射光谱是峰值位于614 nm的窄带谱,对应于Pr3 的1D2-3H4的跃迁发射.X射线粉末衍射的结果表明该磷光体为CaTiO3结构,共掺杂的稀土离子并未对基质晶格产生较大影响.     

稀土掺杂对硅酸盐玻璃折射率的影响

固相高温烧结法制备了掺铒、铒镱共掺和铒镱钕共掺硅酸盐玻璃．测量了玻璃样品不同波长光源照射时的折射率,讨论了稀土掺杂成分和浓度对折射率的影响．单掺铒样品为正常色散,铒浓度增高折射率变大．铒镱共掺样品中铒浓度较低时,折射率随掺镱浓度提高而增大,并出现反常色散现象;铒浓度较高时,不仅有反常色散现象,而且镱浓度继续增高,出现两个吸收带．铒镱钕共掺硅酸盐玻璃样品的折射率随钕浓度提高,吸收带向长波方向移动．