谱
- 与 谱 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The text is also mentioned some key technique about the integral of the chart, the selecting of the peak of chromatogram, the cutting of the peak of solvent and the afterbody of the chromatogram, the enactment and computing of compared chromatogram, the matching of chromatogram, and the synthesizing of the compared chromatogram.
详细论述了谱图的积分与色谱峰的挑选、溶剂峰剪切与尾部剪切、参比色谱峰的设定与相对计算、谱峰匹配、对照指纹图谱的生成等几项软件关键技术。
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Aiming at the signal processing problems that exist in online fault diagnosis for train running gear, based on discussing the principle of characteristic spectrum analysis, a method of full period and uniform angle sampling is applied, which transfers the vibration signal from time domain into angular domain. The angular domain signal is transferred into corresponding characteristic spectrum using FFT. Through spectrum estimation and analysis, fault characteristic spectrum values of running gear components are acquired to distinguish their faults.
在讨论特征分析方法原理的基础上,针对机车走行部故障在线监测过程中存在的信号分析与处理问题,运用整周期等角度采样方法将时域振动信号转换为角域信号,采用FFT变换将角域信号变换为对应的特征频谱,通过谱估计、谱图分析得到机车走行部各零部件的故障特征谱值,再根据该特征谱值识别机车走行部各零部件的故障。
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And the accurate masses of the product ions of butanone and propenol resulting from the ion/molecule reactions were obtained.
另外 ,把该类化合物(30个)SCI反应的质谱图与NIST98库中的标准EI质谱图进行了比较,建立了SCI质谱图库,提高了在离子阱质谱上对这类小分子化合物定性分析的准确率。
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Raney nickel catalyst was used in hydrogenation of the turpentine and c-pinane,t-pinane,camphene and isocamphane and some other monoterpane s were determined.
用雷尼镍为催化剂对松节油进行了加氢实验,获得顺蒎烷、反蒎烷、莰烷、异莰烷等单萜烷类化合物,采用气相色谱"反吹、微流控"技术的色谱-质谱分析方法,测得了它们的保留时间和质谱图,为进一步研究原油或抽提物轻馏分中单萜烷类化合物的地球化学意义提供了一些基础性数据。
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The HPLC methods for analysis of N--ribitylxylidine and N-methyl glucamine were established. After optimizing the operation conditions, the principal product and main impurities were well separated. And they were determined by LC-MS. The operation condition of N--ribitylxylidine is, columniation temperature is 30℃, flow rate is 0.7mL/min, UV wave is 244nm, the mobile phase is methanol: water=40: 60 .
首次建立了对葡甲胺和核糖胺的高效液相色谱分析方法,通过对色谱操作条件的优化,成功分离了主产物和杂质,在此条件下,应用液相色谱-质谱联用仪对糖基胺及生成杂质进行了指派定性,并测定了两种糖基胺及其主要杂质的含量,获得了满意的结果。
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Some results about the re-emission spectrum, the re-emission flux, the albedo and the equivalent temperature at the boundary are given, and the variations of re-emission spectrum with the incident flux are analyzed.
当入射流强度在(0.12-1.2)×1014Wcm2范围内,发射谱接近平衡谱,但在峰值附近谱形发生畸变。随着入射流强度降低,发射谱偏离平衡谱越来越大。分析表明,这与烧蚀深度和冕区光学厚度变小有关。
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Some results about the re-emission spectrum,the re-emission flux,the albedoand the equivalent temperature at the boundary are given,and the variations ofre-emission spectrum with the incident flux are analyzed.
当入射流强度在(0.12-1.2)×1014Wcm2范围内,发射谱接近平衡谱,但在峰值附近谱形发生畸变。随着入射流强度降低,发射谱偏离平衡谱越来越大。分析表明,这与烧蚀深度和冕区光学厚度变小有关。还给出了在不同入射流强度情况下反照率及边界等效温度随时间变化规律和对吸收流及再发射流脉冲的分析。
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The applications of chromatographic techniques in the fingerprint study of Chinese traditional medicine, such as gas chromatography, high performance liquid chromatography, supercritical fluid chromatography and high speed counter current chromatography are reviewed.
介绍了气相色谱、高效液相色谱、超临界流体色谱和高速逆流色谱等几种色谱技术在中药指纹图谱研究中的应用现状,以及使用模糊聚类分析和人工神经网络分析指纹图谱对中药进行模式识别和质量鉴定的方法。
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The experimental results show that: DNA of normal gastric mucosa has stable phosphate backbone; Since the peak intensity at 1090 cm^(-1) is lower than that at 1050 cm^(-1), phosphate backbone in DNA of intestinal metaplasia becomes unstable, while the rest spectra peaks are similar to those in normal gastric mucosa; In terms of adenocarcinoma DNA, double peaks at 1090 cm^(-1) whose intensity are higher than 1050 cm^(-1), are observed, which indicates that DNA chain is broken and re-forms a double stabilized phosphate backbones. In addition, peaks at 950 cm^(-1), 1010 cm^(-1), 1100~1600 cm^(-1) also exhibit obvious difference compared with normal gastric mucosa, which shows that deoxyribose and bases are changed due to broken of DNA.
实验结果表明,胃粘膜正常组织DNA中有稳定的磷酸骨架;肠化组织基因组DNA拉曼特征峰在1090 cm^(-1)处谱峰强度低于1050 cm^(-1)处谱峰强度,表明其磷酸骨架变得不稳定,其它位置的谱峰与正常组织相似;腺癌组织基因组DNA拉曼特征峰在1090 cm^(-1)附近出现双峰,其相对于1050 cm^(-1)处谱峰强度更强,提示DNA有可能出现断链并再次形成了稳定的磷酸骨架,在950 cm^(-1)、1010 cm^(-1)、1100~1600 cm^(-1)波段的特征谱峰与正常组织DNA相比变化也较大,说明脱氧核糖和碱基可能由于DNA断链也随之改变。
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After experiments, we got some results as the following:1.Induced by semi-conductor laser, solid DNA changes as below: 1the deoxyribose-phosphate backbone vibrations in DNA decreasing, these bands are at 884~890cm~(-1),1112cm~(-1) and 1168cm~(-1). 2 deoxyribose and C-O stretch vibration in d increasing, there are new bands occurring at 1436cm~(-1) and 1072cm~(-1), the intensities of these bands at 1466cm~(-1) and 1030cm~(-1) increase.
通过实验研究,得到如下一些结论: 1、固体DNA经半导体激光器照射后,可以导致以下变化:(1)DNA中脱氧核糖磷酸主链振动减弱,包括在884~890cm~(-1)、1112cm~(-1)和1168cm~(-1)处的谱带;(2)脱氧核糖以及d中CO的伸缩振动增强,在1436cm~(-1)和1072cm~(-1)处出现了新的谱带,在1466cm~(-1)和1030cm~(-1)处的谱带强度增强;(3)各碱基的振动频率和相对强度都发生了很大的变化,碱基中羰基的伸缩振动显著增强,在1650cm~(-1)和1670cm~(-1)处出现了新的谱带,在1710cm~(-1)处的谱带强度显著增强。
- 推荐网络例句
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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.
随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。
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But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.
不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。
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Closes the eye, the deep breathing, all no longer are the dreams as if......
关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。