查询词典 falling gradient

The standard Bruker pule sequence NOESYGPPR1D , which is a presaturation experiment for water suppression incorporating the first increment of the NOESY pulse sequence and a spoil gradient .

期待有人能为我解答这个压水峰的脉冲序列做实验时用到这个脉冲序列压制，但不知道原理，文献中提到

Based on it, a new efficient implementation of preconditioned conjugate gradient is put forward to solve the Gauss-Newton equation and save the cost on computation with the same exactly quadratic convergence to the traditional choleski factorization.

新算法与传统的使用Choleski技术的Gauss-Newton法具有相同的收敛速率，但在求解 Gauss-Newton方程组时减少了代数运算的计算量。

Owing to the existence of noise or quantization error, conventional gradient operators generally produce many local minima.

因此，本文提出了一种基于直接投影和分水岭结合的多分辨率分水岭算法来分割图像。

In this paper,a new adaptive image interpolation method based on edge,introducing rectangular interpolation and quincunx interpolation,putting forward the gradient weight function,motivated by the work of Nira Shezaf et al.,is presented.

引入了一种改进的保留图像边缘特征的自适应缩放插值方法，在Nira Shezaf等人提出的自适应插值算法的基础上进行了改进。

The effects of the content of acetic acid and water in mobile phase on the separation were systematically investigated. The fast enantioseparation of the racemate on monolithic column was successfully realized by stepwise gradient elution.

考察了流动相中添加不同量的醋酸和水对分离的影响，结合台阶梯度洗脱模式在S-TB整体柱上实现了对TB消旋体的快速分离。

The effects of racemate initial concentration, volume ratio of surfactant to organic solvent, pH value in internal or external phase, pH gradient from external to internal phase, ligand metallicion and system temperature on the performances of chiral separation were discussed.

摘 要：研究在含有Cu2+和N-n-十二烷基-L-脯氨酸手性配体的乳状液膜体系中手性萃取分离氧氟沙星对映体的效果，以及外消旋体的初始浓度、表面活性剂与有机溶剂的体积配比、内外水相pH值、从外水相到内水相pH值梯度变化以及配位金属离子与体系温度对液膜手性分离性能的影响。

According to the distribution of the radial gradient of vertical vorticity component of hurricane, which is calculated with high resolution output from one explicit numerical simulation of a hurricane case, this kind of wave mainly emerges in eye and eyewall.

利用一次飓风过程的精确数值模拟所输出高分辨的资料，计算了飓风中径向涡度梯度的分布，指出这类波动主要存在于眼墙和眼心中。

The gel dynamics experiments showed that the gel formation law was similar with the other polymer systems, which wasrelated with dense surface under the soft coagulating condition and the thickening gel; the square of gel thickness was linear with coagulation time. The qualitative analysis of the surface puckers of fibers spun from wet spinning and dry-jet wet spinning was made. The positions where the die swell appeared were not the same and the die swell appeared at the air gap where the fiber would markedly been elongated and vary little in the coagulant, thus the surface of fiber spun from dry-jet wet spinning was more smooth. The radial component concentration gradient was responsible for the radial structure of PAN fiber spun from dry-jet wet spinning. The thicker surface with microvoid structure of

对湿纺和干湿纺进行比较表层沟槽的产生进行定性分析，原因在于孔口胀大区域出现在不同位置，在干湿纺中，溶液的孔口胀大出现在空气层，并在该区完成大部分形变，进入凝固浴后形变很小，纤维表面较为光滑；干湿纺PAN纤维径向结构存在差异，这与丝条内组分由于双扩散进行导致径向上存在浓度差异直接相关；凝固强度较大的体系，可以获得厚度较大且孔结构尺寸较小的皮层；含较少缠结的PAN原液在纤维成形后截面很圆整，但原液缠结浓度增大时成形后圆整度下降；PAN纤维成形是一个远离平衡的过程，凝固作用缓和的体系可以使成形过程靠近平衡，可获得更大尺寸的孔洞结构；原液中少量的非溶剂添加剂显著改变纤维径向结构，可获得孔洞尺寸更小和更为均一的径向结构，这与径向浓度差异的减小、分相时间的集中相关；PAN原液的成形纤维表面依赖于凝固强度；由AFM对相近凝固条件下成形的PAN膜进下

Now, we are going to create a white radial gradient at the top of our layout.

4现在，我们将创建一个白是我们最径向梯度布局。

The temperature of basin was influenced greatly by matle heat conduction, magmatic heat and radioelement decay during the time of Early Permian-Late Permian rifting, while in the down-warped basin from the late stage of Late Permian to the present the temperature has been greatly affected by geothermal gradient and tectogenetic transition heat.

认为早二叠世-晚二叠世早期裂谷作用阶段盆地温度主要受地幔热传导、岩浆体热和放射性元素衰变的影响，晚二叠世晚期至今坳陷盆地阶段主要受地热增温率和构造运动转化热的影响。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼