查询词典 Nd

By analyzing the working characteristics of the laser crystal, the temperature field and thermal distortion field analytical expressions of Nd:GdVO4 crystals with super-beam end-pumped were obtained by the equation of aeolotropy heat conduction, which considered heat conduction aeolotropy characteristic of Nd:GdVO4 crystal.

通过激光晶体工作特点分析，考虑到Nd：GdVO4 晶体热传导各向异性的特点，采用各向异性传热的Poisson 方程，得出了超高斯光束端面泵浦Nd：GdVO4 晶体温度场以及热形变场的一般解析表达式。

Basanite and tephrite from Mt. Crater, Cape Bird and Bonney Lake exhibit similar composition in major elements and trace elements, rare earth elements . They are enriched in MgO, TiO〓, transitional elements and compatible elements , and depleted in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements; Latite from Cape Rodeys and Cape Evens are different from basanite and tephrite, they are enriched in SiO〓, Al〓O〓, Na〓O, K〓O, incompatible elements and rare earth elements, and depleted in Mgo, TiO〓, transitional elements and compatible elements. Volcanic rocks in five regions have the same isotopic ratio of 〓Sr/〓Sr (0.703115-0.703334) and 〓Nd/〓 Nd (0.512892-0.513076), however,〓Pb/〓Pb ratio in volanic rocks from Mt. Crater, Cape Bird and Bonney Lake is lower than those of Cape Rodeys and Cape Evens.

在主元素氧化物和微量元素、稀土元素含量上，克雷克特山、鸟角和博尼湖南岸的碧玄岩、碱玄岩成分比较类似，均具有较高的MgO、TiO〓、过渡元素和相容元素，较低的SiO〓、Al〓O〓、K〓O、Na〓O、不相容元素和稀土元素；罗德角和伊万思角安粗岩雷同，它们具有较高的SiO〓、Al〓O〓、Na〓O、K〓O、稀土元素和不相容元素，较低的MgO、TiO〓、过渡元素和相容元素，但五地区火山岩几乎具有一致的Sr、Nd同位素比值，〓Sr/〓Sr＝0.703115-0.703344、〓Nd/〓Nd＝0.512892-0.513076，在Pb同位素比值上，五地区的〓Pb/〓Pb＝18.664-19.913，其中碧玄岩和碱玄岩比安粗岩的比值稍低。

When the temperature is less than 15 K, the PBTCA-Nd~(3+) complex is a ferromagnet, otherwise, it is a diamagnet. Both PPHBT-Nd~(3+) and PPHPHN-Nd~(3+) exhibit the characteristic of soft-magnetic materials at low temperature, the Curie-Weiss temperature are 80 K and 150 K, respectively.

实验结果表明，含咔唑聚合物的稀土配合物PBTCA-Nd~(3+)表现出特殊的软铁磁性，具有一个磁转变温度15 K，低于此温度时配合物是个铁磁体，反之，为抗磁体。

Based on large aperture Nd∶YAG slabs and dichromatic coatings, a high-efficiency V-shaped active-mirror laser was designed, which was composed of four modules with two large-aperture Nd∶YAG slabs in each module.

基于大口径片状Nd∶YAG介质，采用双色膜技术设计并研制了高效率V形有源镜激光器。该激光器有四个模块，每个模块包含两片大口径Nd∶YAG片状介质。

According to one embodiment, the at least one filter includes a plurality of 2.sup.nd-order filters connected in series, and an output from each of the plurality of 2.sup.nd-order filters are scaled and summed to provide the false flow signal.

根据一项体现，是至少有一个过滤器包括一个多元化的2.sup.nd阶滤波器串联，和一个输出从每一个多元化的2.sup.nd阶滤波器的规模和总结提供虚假的血流信号。

And in the group of inoculation twice, HI≥1:64 and the rates of protection were 100% for ND and 87.5% for Fowl Cholera 6 months p.i., 100% for ND and 77.5% for FC 8 months p.i..

二次免疫组，6个月攻毒ND的保护为100%，HI抗体1：64以上；FC攻毒保护87.5%；8个月攻毒ND的保护为100%，FC保护为77.5%。

Plate and λ/2 plate were placed inside the Nd∶YVO4KTP green laser cavity with angle 90°between their fast axis.The composite plate composed of HWP,QWP and KTP has the function of QWP.The composite plate with Nd∶YVO4 can effectively suppress the coupling of polarized modes,and multi-longitudinal-mode lownoise green laser was obtained.Since the composite plate counteracted the phase shift induced by temperature sensitivity of quartz plate,the green laser operated with lownoise reliability in different output power and different operation temperature.The threelongitudinalmode, the noise of less than 0.5% and output power stability of less then 1% for 12 hour are obtained in the green laser.

介绍了一种LD泵浦腔内倍频全固体Nd∶YVO4KTP多纵模、低噪音、高功率稳定绿激光器在Nd∶YVO4KTP绿激光器组成的谐振腔内放置厚度约相等的石英晶体λ2波片和λ4波片，使两波片快轴夹角互呈90°，HWP、QWP与KTP构成复合波片，其作用相当于QWP，此复合波法与各相异性Nd∶YVO4共同作用有效抑制了腔内偏振模耦合，获得多纵模低噪音绿光输出此复合波片相互作用由于抵消了石英晶体波片温度敏感引起的相位延迟量漂移，所以此激光器在不同功率、不同工作温度下，均能稳定可靠地运转于低噪音状态实验结果为，绿光输出纵模数为3个，噪音小于0.5%，12 h功率稳定性优小于1

The results show that the grain size is refined by the addition of Nd or Dy, especially combined addition is better than single addition. With the addition of 0.2 % Nd and 0.6% Dy, the grain size is reduced from 150 μm to 60 μm. Combined addition with two rare earths elements makes the tensile strength, yield strength and elongation of ZK10 alloy increase to 191.0 MPa, 69.0 MPa, and 16.6%, increasing by 89%, 43%, 232% respectively, compared with ZK10 alloy without RE element.

结果表明：ZK10镁合金中分别加入Nd和Dy均能细化晶粒，且Nd和Dy同时加入的效果优于单一加入的效果，当同时加入质量分数为0.2% Nd和0.6% Dy时，合金的平均晶粒尺寸由原来的150 μm细化至60 μm，使ZK10合金的抗拉强度和屈服强度分别提高至191.0 MPa和69.0 MPa，伸长率达到16.6%，与未加入稀土的ZK10合金相比分别提高89%，43%和232%。

The absorption properties of Nd:YVO4 crystals with various doping levels and lengths are reported.The 1 064 nm laser properties are compared,and the effective stimulated emission crosssections of different doping levels are calculated with upper-level life-times we have measured.Our investigation give a good advice for the optimization of LD end-pumped Nd:YVO4 laser.

对多种掺杂浓度、长度的Nd：YVO4晶体进行了吸收性质、激光性质的研究和对比，根据实验结果和测得的上能级寿命计算了不同掺杂浓度Nd：YVO4晶体的有效受激发射截面，对激光二极管端面泵浦Nd：YVO4固体激光器的最优化有实际指导意义。

ND-1 scFv was labeled with 〓Tc by MTD.〓Tc-ND-1 scFv was injected into mice bearing the CCL-187 xenograft for biodistribution study, radioactivity in blood, tumor and normal tissue was determinated at various time periods following injection by a gamma scintillation counter, and the ratios of radioactivity between tumor tissue and normal tissue were evaluated. Radioactively- labled scFv displayed rapid localization in tumors. Accumulation was found in tumors in high concentrations 1 hour after injection, and scfv uptake in tumor was 2.6 times higher than in blood. The T/NT for blood, liver, spleen , hear, lung and kidney were 2.61, 1.85 1.94, 1.75, 0.83 and 0.22 respectively.

将ND-1scFv与同位素〓Tc偶联制备〓Tc-ND-1scFv，注入荷瘤裸鼠体内，观察了偶联物的体内生物学分布，结果显示，〓Tc-ND-1scFv在荷瘤裸鼠体内的生物学分布带有明显的肿瘤积聚趋向，注射1小时后即可选择性地积聚于肿瘤组织，其放射性明显高于大多数正常组织，除肾脏和肺外T/NT值均大于1.2，而完整的ND-1完成同样的积聚则需要20-24小时。

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。