查询词典 yttrium

BACKGROUND: Holmium:yttrium-aluminum-garnet and potassium-titanyl- phosphatelasers make it possible to perform transurethral prostate resectionwith almost no absorption of irrigant and minimal blood loss.

背景：钬激光：钇铝石榴石和钾钛磷使得经尿道前列腺切除术几乎不吸收任何冲洗液以及出血量减少到最低。

Yttrium Aluminum Garnet; 95%alumina ceramics ; Diffusion welding ; Projection tube ; Leakless sealing

钇铝石榴石；九五瓷；扩散焊接；投影管；气密性封接

Another interesting host of rare earth ions is single crystal yttrium orthovanadate, YVO〓.

另一种极具特色的稀土离子基质材料是YVO〓晶体。

In the dissertation the low-dimensioned orthovanadate nanomaterials such as Lanthanum orthovanadate (LaVO_4) nanorods, Cerium orthovanadate (CeVO_4) nanorods, Yttrium orthovanadate (YVO_4) nanorods and one-dimensional ammonium vanadate nanomaterials were chosen as the objects of study. Modern testing methods were used to study the preparation, structure and properties of low-dimensioned orthovanadate nanomaterials.

以LaVO_4纳米棒、CeVO_4纳米棒、YVO_4纳米棒等低维稀土钒酸盐纳米材料和一维钒酸铵纳米材料等为研究对象，采用现代测试手段对低维钒酸盐纳米材料的合成、结构和性能进行了深入研究，探讨了组成、结构及性能的相关性，分析了结构形成和性能优化的机理和规律。

We found out one kind of new orange-red long afterglow material La2O2S: Eu3+, Mg, Zr.2 In the phosphor Gd2O2S, Mg, Ti which was prepared by high-temperature solid-state method, the orange afterglow phenomenon can be seen after illuminated with UV light.3 Using the high-temperature solid-state method, Gadolinium oxysulfide phosphors doped with rare earth ions were synthesized. We can observe the red or orange phosphorescence in Gd2O2S doped with Eu3+, Sm3+, Tm3+, Yb3+, Dy3+, Er3+, Nd3+or Ho3+. This is a new result of the long afterglow phosphors research.4 Using the microwave radiation method, the new Sm3+ doped gadolinium oxysulfide phosphor, which has the orange-red long afterglow emission after illuminated with UV light or visible light, was synthesized for the first time.5 In fluorescent materials YOX doped with europium ions, the long afterglow phenomenon wasnt observed but the blue luminescence of Eu2+ and red luminescence of Eu3+ are simultaneously examined. This is a new result of the valence stability and change of Eu2+ in yttrium oxyhalide .We systematically studied the effects of the host, addition agents and reaction atmosphere on the valence change and fluorescence property of europium ions.

经过系统的研究总结得到以下的结论与成果： 1采用高温固相反应法合成了一系列稀土离子掺杂的硫氧化镧发光粉，发现了该体系中Eu~(3+)的长余辉发光，从而得到一种迄今未见文献报道的红色长余辉发光材料：La_2O_2S：Eu~(3+)，Mg，Zr； 2在Gd_2O_2S，Mg，Ti磷光粉中观察到橙色的长余辉发光现象； 3采用高温固相反应法合成了一系列稀土离子掺杂的硫氧化钆磷光粉，在掺杂Eu~(3+)、Sm~(3+)、Tm~(3+)、Yb~(3+)、Dy~(3+)、Er~(3+)、Nd~(3+)、Ho~(3+)的Gd_2O_2S中观察到红色和橙色长余辉发光； 4首次采用微波法合成了Gd_2O_2S：Sm~(3+)，Mg，Ti磷光粉，该磷光粉经紫外或可见光激发后呈现明显的橙红色长余辉发光； 5在YOX中同时观察到Eu~(2+)和Eu~(3+)的发射，系统研究了基质、添加剂及反应气氛对Eu价态和发光的影响。

Purpose: To evaluate the clinical effects and surgical techniques of Neodymium-yttrium, aluminum, garnet laser therapy for persistent pupillary membranes .

目的：评价Nd：YAG激光治疗先天性瞳孔残膜的临床疗效及手术技巧。

Coordination compound ; Trihydrated Yttrium Nitrate ; Crown ether 18C6; Phase equilibrium.

配合物；三水合硝酸钇；冠醚18C_6；相平衡

The interference due to variably concentration of sodium, and using of internal standard element yttrium compensate for it were investigated. It was found that the combination of robust conditions, i.e.

试验研究了不同浓度钠基体对分析谱线产生的干扰和用钇作为内标元素来补偿钠基体的干扰。

The article considers that the magnetic material layer of MPCs is bismuth-substituted yttrium iron garnet which is ferromagnetic material, and the isotropic material layers are GGG, GaAs, SiO2, etc. Those materials have different relative permittivities.

文中所模拟的磁性光子晶体，其主要磁性层为亚铁磁性材料的渗入铋之钇铁石镏石(Yttrium Iron Garnet， YIG，)，而等向性介质则采用、GaAs等材料，其分别具有不同的相对介电常数。

Owing to the high performance,the second generation(2 G) high T_C superconducting tapes based on yttrium barium copper oxide have attracted much attention of the researchers worldwide to develop the processing techniques for application.

以YBa2Cu3O7-x超导涂层为导体的第二代高温超导带材由于其优异的本征性能，吸引着科学家不断探索和研究其实用成材技术。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。