样品

The loss of weight of powder during combustion process, phase change, conglobation, grain size, crystalline grain distortion situation, maximum magnetic energy and coercive force were get detaily.

通过差重分析、红外光谱、扫描电子显微镜、能谱、化学相态分析、X射线衍射、振动样品磁强计等检测手段对所得的样品进行燃烧过程重量损失、相态变化、样品的分散性和均匀性、团聚情况、晶粒尺寸计算、晶格畸变情况、样品的最大磁能积、矫顽力等相关的性能进行检测。

When it is crashed to -3 mm and is mixed uniformly it will become the sample for multi-elements analysis raw ore screening and elutriation raw ore mineralogy research and gravity concentration test.

试验矿样取自选矿生产现场，经破碎至-3毫米，均匀混样后作为本次试验的多元素分析样品、原矿筛分及水析样品、原矿矿物学研究样品和重选试验样品。

The experiment results show that enstatite is transformed into the perovskite structure under the shock compression whereas the perovskite structure is transformed retrogressively into the single-chain structure during the process of pressure release.

对回收样品进行的X射线衍射分析结果表明：两发顽火辉石回收样品的主相均是单链状结构硅酸盐，而非钙钛矿结构；另外，回收样品中均未观察到氧化物SiO2 和(Mg0.92， Fe0.08)O的XRD特征谱线；两发MgO+SiO2回收样品中均观察到SiO2和镁橄榄石(Mg2SiO4)而没有氧化物MgO。

Since the standard sample and the sample have fixed positions, the error caused by platform jitter or other vibration in the scanning process can be simultaneously represented by the profile signals of the standard sample and the sample.

标准样品和样品位置固定，所以在扫描过程中，由于平台抖动或其他震动引起的误差会同时体现在标准样品和样品的形貌信号上。

Then, a new quantitative analysis method, based on the observed dependence of the linear correlation coefficient between spectra of sample analyzed and the spectrum of reference certified samples, was introduced and analyzed for its application.

自相关定量分析通过建立标准参考样品的光谱数据库，将分析样品多次测量的光谱与各参考样品光谱进行相关性分析，依据相关性系数的大小与分布概率，判断分析样品的特性与成分。

To investigate the genetic differences between the Liquidambar formosana populations at different altitudes and in the same light conditions in Wuzhi Mountain of Hainan, the samples of Liquidambar formosana at 7 altitude levels and the 6 samples (among which, there were 3 samples from shade conditions and 3 from sunlight conditions) from the same altitude (700 m) were made a study in molecular biology by RAPD method, with 50 random primes in use.

为了解五指山不同海拔下枫香居群之间的遗传差异，用50个随机引物，应用随机扩增多态性DNA方法，分别对7个海拔梯度、相同光照条件下的枫香样品和710 m海拔高度的6个枫香样品（3个阴性条件样品和3个阳性条件样品）进行了分子生态学研究。

If the training samples fail to represent the sample space, sometimes the predictions of new samples can be degraded.

由于多元校正的样品光谱空间的多维性和复杂性以及样品选取过程中的不确定性，准确估计训练集样品在整个样品空间的代表性尚存在一定困难。

Half of 223 Samples in 2003 and 80% of 126 samples in 2002 showed shrivel.

在2003年的223份样品中有一半的样品表现为皱缩；在2002年的126份样品中有80％的样品表现为皱缩。

This method is based on moving average techniques, a statistics Uis calculated and opimized within a variable-sized moving window centred at an arbitrary sample location. The optimal statistic U(r0) characterizes the entities present in an image,therefore the U-statistic method usually provide better results in geochemical pattern recognition.

建立在移动平均技术基础之上，对任意一个样品位置，以该样品为中心具有窗口大小r可变化的移动窗口内，可计算出窗口内的一组样品所确定的统计量U值，根据统计量的最佳值U(r0)所成的图像，可以更好的反映相邻样品间存在的空间相关和变化特征，有助于地球化学模式识别和异常筛选。

Moreover, it has been proved that weighted sampling can be achieved by multiplying both the spectrum and concentration value of a sample by the same non-negative constant, which has made the computation of sample-weighted models much easier.

为解决以上问题，同时考虑到样品的代表性很难通过考察单个样品进行估计，我们把全局优化样品加权的思想和偏最小二乘相结合，提出了最优化样品加权偏最小二乘这一新算法。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。