查询词典 thulium

The absorption of light in aqueous solutions of dysprosium, holmium and thulium salts.

唐高1，朱基千1，2，"掺镨(Pr3+)和铥(Tm3+)氟化镓铟玻璃标准的和改进后的贾德奥菲尔特理论研究"，光学学报 27，

Lanthanides belong to the sixth cycle of the periodic table Ⅲ B family, are all solid metal, they are La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, holmium, erbium, thulium, ytterbium, and lutetium were 15 kinds of metals and their periphery are two layers of electronic 5d16s2, while the peripheral third layer f orbital but never zero to 14, so the external electronic structure of 4f0-145d16s2, and therefore these elements in oxidation number are to 3, very close chemical properties, extraction, when it is difficult to separate them they are mostly multi-element mineral mix, more difficult to increase refining, and their atomic number of 57-71, one by one to increase the number of protons the nucleus, and thus extranuclear electron of gravity is also growing, so that atomic radius decreases with increasing atomic number Z, which makes lanthanides contraction, ionic radius is also reduced, which also makes Zr, Hf, Nb and Ta, Mo and W, the atom and ionic radius very close to each other they also determine a similar nature, resulting in difficult separation, also the tribe Ⅷ of the fifth cycle, ruthenium, rhodium, palladium, and the sixth cycle, osmium, iridium, platinum is very similar in nature, thus The six elements, said platinum group elements.

镧系元素属于周期表第六周期中ⅢB族，全部是固体金属，它们是镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥共十五种金属元素，它们的外围两层的电子均是5d16s2，而外围第三层的f轨道电子却从零增加到14个，所以外围电子结构为4f0－145d16s2，而使这些元素氧化数均为＋3，化学性质极为接近，提炼时很难分开，它们的矿石又大多是多种元素混在一起的，更增加提纯难度，它们的原子序数为57－71，核内质子数逐个增加，因而对核外电子引力也不断增强，使原子半径随原子序数Z增加而减小，这就使镧系元素收缩、离子半径也缩小，这也使得Zr和Hf，Nb和Ta、Mo和W等原子和离子半径都很接近、也决定了它们彼此性质类似，以致难以分离、也使第Ⅷ族中第五周期的钌、铑、钯和第六周期的锇、铱、铂在性质上极为相似，因而称这六个元素为铂系元素。

The elements which have been studied most are those from gadolinium to thulium .

研究得最多的是从钆到铥之间的元素。研究得最多的是从钆到铥之间的元素。

Objective To evaluate the safety and efficacy of thulium laser resection of prostatetangerine technique in treatment of benign prostate hyperplasia.

目的探讨铥激光前列腺剥橘式切除术治疗良性前列腺增生症的手术方法并评估其安全性和有效性。

If the removal of mining electric knife or thulium laser surgery, can be tested whether prostate cancer.

如果采电刀切除或铥雷射手术，可以进行化验是否有摄护腺癌。

Objective: To report our experience of thulium laser enucleation of the prostate for symptomatic benign prostatic hyperplasia and the datas of short-term follow-up.

目的：报告采用铥激光进行经尿道前列腺剜除术治疗症状性前列腺增生症的经验及短期随访结果。

The test's result showed that an amount of addition of novel metal Pd, thulium, and transition metal could promote the initial reaction activity.

试验表明，适量Pd的加入提高了环己醇脱氢反应的初活性；过渡金属和稀土金属的加入，有助于铜镁催化剂反应初活性的提高。

After work out the parameters of the dynamic model, the simulation model of the system has been set up in similink system. Run the simulation model and gain the corresponding results. Some characteristics of the permanent thulium gear transmission system have been studied by analyzing the simulation results.

计算出动力学模型中的相关参数后，在similink环境中建立了系统仿真模型并得出相应的仿真结果，通过分析比较仿真结果，了解永磁齿轮传动系统的部分动态特性。

The research showsthat water in mines is the most sensitive to thermal infrared images. Since miningmethods in Longnan Thulium Mine is secluded, thermal infrared RS which could bemuch more effective and economical is proposed to investigate thulium mines.

研究表明热红外遥感影像对矿山水体的变化反应最敏感，因此，针对龙南地区现行的稀土矿开采方法比较隐蔽的特点，建议采用热红外遥感进行稀土矿矿山调查，这样既有效又经济。

Removed veins research demonstrate the main reason of transplanted vessel stenosis is the hyperplasic of endothelium. Which is a popular reaction when set vein into arteral circulation. It is caused by the transmission of smooth muscle cell to endothelium and proliferate and release extracellular matrix. These are two characteristics in pathology erg middle layer of sue proliferates and migrate to endothelium in early and excel of end thulium aggregate in cater stage. The colic and the motivation of end thulium hyper is the hyper of sac.

在mRNA水平，随着移植术后时间的推移，ECE的表达逐渐增高，手术后1W-2W达到高峰2W后表达逐渐下降，于8W左右趋于平衡，ET-1的表达与ECE的动态变化过程相似，亦于术手1W-2W达到高峰，在8W左右趋于平稳在蛋白质水平，以ET-1抗体免疫组织化学染色结果显示ET-1主要在血管内收细胞及平滑细胞胞浆中表达，尤其是中膜平滑肌细胞更为明显，呈棕黄色颗粒。

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。