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Identifying the geographical origin and processing technology of Moyao(Myrrh)on the basis of near-infrared spectroscopy combined with chemometrics

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Journal of Traditional Chinese Medicine 2024年第3期44卷 505-514页

作者： XU Ningning YAN Ganming XU Fengjie DENG Linfeng QIAO xinjiang LU Changzheng CHENG Shaomin TCM Diagnosis institute College of Traditional Chinese MedicineJiangxi University of Chinese MedicineNanchang 330004China TCM Processing institute Pharmaceutical CollegeJiangxi University of Chinese medicineNanchang 330004China School of Electronic Information and Artificial Intelligence Shaanxi University of Science and TechnologyXi'an 710021China Jiangzhong Pharmaceutical Co. Ltd.Nanchang 330096China Jiangxi Guhan Refined Chinese Herbal Pieces Co. Ltd.Nanchang330041.China

OBJECTIVE:To evaluate the quality of Moyao(Myrrh)in the identification of the geographical origin and processing of the ***:Raw Moyao(Myrrh)and two kinds of Moyao(Myrrh)processed with vinegar from three countries were identified using near-infrared(NIR)spectroscopy combined with chemometric *** component analysis(PCA)was used to reduce the dimensionality of the data and visualize the clustering of samples from different categories.A classical chemometric algorithm(PLS-DA)and two machine learning algorithms[K-nearest neighbor(KNN)and support vector machine]were used to conduct a classification analysis of the near-infrared spectra of the Moyao(Myrrh)samples,and their discriminative performance was ***:Based on the accuracy,precision,recall rate,and F1 value in each model,the results showed that the classical chemometric algorithm and the machine learning algorithm obtained positive *** all of the chemometric analyses,the NIR spectrum of Moyao(Myrrh)preprocessed by standard normal variation or Multivariate scattering correction combined with KNN achieved the highest accuracy in identifying the geographical origins,and the accuracy of identifying the processing technology established by the KNN method after first-order derivative pretreatment was the *** best accuracy of geographical origin discrimination and processing technology discrimination were 0.9853 and 0.9706 ***:NIR spectroscopy combined with chemometric technology can be an important tool for tracking the origin and processing technology of Moyao(Myrrh)and can also provide a reference for evaluations of its quality and the clinical use.

关键词： Moyao(Myrrh) near-infrared spectroscopy geographical origin processing technology

Ecological response to the climate change on the northern slope of the Tianshan Mountains in xinjiang

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Science China Earth Sciences 2005年第6期48卷 765-777页

作者： CHEN Xi1, LUO Geping1, XIA Jun2. ZHOU Kefa1, LOU Shaoping3 & YE Minquan4.1. xinjiang {2. of Ecology and Geography, Chinese Academy of Sciences, urumqi 830011, China 2. {2. of Geographical and Resources Sciences, Chinese Academy of Sciences, Beijing 100101, China 3. urumqi meteorological-satellite Land Station, urumqi 830011, China 4. Seismological Bureau of xinjiang Uygur Autonomous Region, Urümqi 830011, China Correspondence should be addressed to Chen Xi xinjiang institute of Ecology and Geography Chinese Academy of Sciences Urumqi China institute of Geographical and Resources Sciences Chinese Academy of Sciences Beijing China urumqi meteorological-satellite Land Station Urumqi China Seismological Bureau of xinjiang Uygur Autonomous Region Urümqi China

The Tianshan Mountains is a high and huge mountain body lying across the central part of xinjiang, China, and is also the main area where the runoff forms in xinjiang. In this paper, a set of RS-based study methods is put forward for deriving the information about the natural change of the ecology in arid areas, and the relationship between the climate change trend and the corresponding ecological response on the northern slope of the Tianshan Mountains since recent {2. years is analyzed from the scales of the land cover ecosystems and landscapes based on the observed data of climate, hydrology, modern glaciers and lakes on the northern slopes of the Tianshan Mountains since recent {2. years and the satellite RS data since recent 10 years by using the RS and GIS technologies. The results are as follows: (1) The overall trend of climate change on the northern slope of the Tianshan Mountains since recent {2. years is that both air temperature and precipitation are increased, especially the increase amplitudes of air tempera-ture, precipitation and annual runoff volume are high since the decade of the 1990s; (2. the in-tegrated indexes of the vegetation in all the geographical divisions on the northern slope of the Tianshan Mountains are obviously increased since recent 10 years, especially in the artificial oases and the foothill belts, such a change trend is advantageous for improving the vegetation ecology; and (3) the vegetation ecology in the arid areas is extremely sensitive to the climate change, the vegetation coverage and the biomass on the northern slope of the Tianshan Moun-tains are continuously increased because of the climate change since recent 10 years, their in-crease amplitudes in the plains and during the late stage are obviously higher than that in the mountainous regions and during the early stage.

关键词： north slope of the Tianshan Mountains, climate change, hydrological change, natural change of ecology,RS and GIS, vegetation index.

Epidemiological Studies on Cystic Echinococcosis in China─A Review

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Biomedical and Environmental Sciences 1995年第2期8卷 122-136页

作者： CHAI JUN-JIE(National Hydatid Disease Center of China, Xnjiang institute for Endemic Diseases Control and research, {2. xinjiang China {4. National Hydatid Disease Center of China Xinjiang Institute for Endemic Diseases Control and Research.

In the four decades from 1951 to 1990, the six provinces or autonomous regions (xinjiang, Gansu, Qinghai, Ningxia, Xizang and Nei Monggol) reported a total of 2. 065surgical cases of hydatid disease, most of which were reported in the recent decade. About one third of the patients was children and adolescents under 15 years old. So far, cystic hydatid infections of local origin have been confirmed in 2. provinces, autonomous regions and municipalities in the whole nation. Findings of X-ray examination and real-time B-mode ultrasonography in agricultural and pastoral areas of xinjiang, Gansu, Qinghai,Ningxia and Xizang showed that the morbidity rate of hydatidosis in human population varied between 0.5% and {2.5%. The main animal intermediate host in all these regions is sheep, the morbidity of which varied between 3.3% and 90%. The infection rate of adult Echinococcus granulosus in dogs varied between 7% and 71%. The high-risk period for humans contracting hydatid disease is the pre-school age. Direct contact of children with dogs and ingestion of water, vegetables and foods contaminated by worm eggs are the chief mode of transmission for human hydatidosis. The common practices of home slaughter and of feeding dogs on offal containing hydatid cysts facilitate the life cycIe of the *** the basis of hydatid control efforts for several years, the Ministry of Public Health promulgated officially the '1992.1995 National Programme for Hydatid Disease Control'in April, 1992. and pilot studies in which the control of hydatidosis is composed of extensive health education, sanitation of slaughtering and management and deworming of dogs are being *** echinococcosis has wide distribution in China and is a major public health problem in hyperendemic areas, poses a great threat against people's health and influences the development of livestock husbandry. This problem has received great attention from the medical and veterinary departments. In the rencent d

关键词： Epidemiological Studies on Cystic Echinococcosis in China A Review

Solvothermal synthesis of nanocrystalline FeS_2

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Science China(Physics,Mechanics & Astronomy) 2005年第2期48卷 188-200页

作者： CHEN Yanhua1, ZHENG Yufeng1, ZHANG Xiaogang2. SUN Yanfei1 & DONG Youzhong11. Physics Department of xinjiang University, urumqi 8300{2., China 2. institute of Applied Chemistry of xinjiang University, urumqi 8300{2., China Physics Department of xinjiang University Urumqi China institute of Applied Chemistry of xinjiang University Urumqi China

This paper reports on the synthesis of the nanocrystalline FeS2.via a solvent-thermal process. Using FeSO4.and NH2.SNH2.as precursors and polyvinyl- pyrrolidone (PVP) as a protective agent (dispersant), we have successfully synthesized nanocrystalline FeS2.both under acidic conditions (pH = 5) and under alkali conditions (pH = 10) at various temperatures and for different time in alcohol-water solution. X-ray diffraction (XRD), Transmission electron microscopy (TEM) and Ultraviolet Visible (UV-VIS) spectroscopy were used to characterize the morphology, structure, particle size and optical characterization of sample synthesized under acidic condition, and the XRD pattern was refined by Rietveld method. The experimental result shows that nanocrystalline FeS2.with uniform size, highly crystallized quality and excellent dispersivity has been synthesized at 2.0℃for 36 h.

关键词： FeS2 (Pyrite), solvothermal, PVP, the Rietveld method.

The possible pivotal role of the eastward dust transport from Central Asia in the global temperature decrease

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Chinese Science Bulletin 2006年第A1期51卷 1-7页

作者： LIU Mingzhe & WEI Wenshou xinjiang institute of Ecology and Geography, Chinese Academy of Sciences, {2. 830011, China Graduate University of the Chinese Academy of Sciences, Beijing 100039, China Chemical Laboratory for Atmosphere, China meteorological Administration, Beijing 100081, China {2. Desert Meteorology, China meteorological Administration, {2. 830002. China xinjiang institute of Ecology and Geography Chinese Academy of Sciences Urumqi China Graduate University of the Chinese Academy of Sciences Beijing China Chemical Laboratory for Atmosphere China Meteorological Administration Beijing China urumqi Desert Meteorology China Meteorological Administration Urumqi China

glacial-interglacialgyrations 的出现能与 Milankovitch 理论被解释，这通常被考虑。然而，在理论的一些问题的答案还当前没被导出。在从 CentralAsia 研究东方灰尘运输以后，我们发现了在东方灰尘运输和全球温度减少之间有积极反馈... 详细信息

glacial-interglacialgyrations 的出现能与 Milankovitch 理论被解释，这通常被考虑。然而，在理论的一些问题的答案还当前没被导出。在从 CentralAsia 研究东方灰尘运输以后，我们发现了在东方灰尘运输和全球温度减少之间有积极反馈机制。这在北半球的 thehigh 纬度区域放大太阳的放射变化的效果，并且导致全球冰川的时代的出现。积极反馈机制在北半球的 thehigh 纬度区域以太阳的放射的减小开始。随后，全球温度减少，全球冰川的历元发生，在哪个枢轴的因素是从 CentralAsia 的东方灰尘运输。与积极反馈机制的理论，在 Milankovitch 理论的一些问题能被解决很好。

关键词：冰川间冰期高纬度地区北半球太阳辐射正反馈机制

Aoyitake plagiogranite in western Tarim Block, NW China: Age, geochemistry, petrogenesis and its tectonic implications

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Science China Earth Sciences 2006年第11期49卷 1121-1134页

作者： ZHANG Chuanlin1,2. YU Haifeng3, YE Haimin2. ZHAO Yu2.& ZHANG Dongsheng4.1. Key Laboratory of Isotope Geochronology and Geochemistry, Guangzhou institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 51064., China 2. Nanjing institute of Geology and Mineral Resources, Nanjing 2.0016, China 3. Tianjin institute of Geology and Mineral Resources, Tianjin 300170, China 4. The 2.d Regional Geological Investigation Party, xinjiang Bureau of Geology and Mineral Resources, Changji 831100, China Key Laboratory of Isotope Geochronology and Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China Nanjing institute of Geology and Mineral Resources Nanjing China Tianjin institute of Geology and Mineral Resources Tianjin China The 2.d Regional Geological Investigation Party Xinjiang Bureau of Geology and Mineral Resources Changji China

SHRIMPP U-Pb zircon age and geochemical and Nd isotopic data are reported for the Aoyitake plagiogranite in western Tarim Block, NW China. The plagiogranite intruded the Middle Pro- terozoic and Lower Carboniferous with an exposure area of ca. 60 km2.and crystallized at 330.7±4.8 Ma. Rock types mainly include tonalite, trondhjemite and minor amounts of diorite and quartz-diorite. Feldspars in the rocks are dominated by oligoclase-andesine, and minor perthite observed locally. The granites are sodic with Na/K ratios (molar) between 4.and 87. Total REE (50-2.0 ppm) show a clear positive correlation with SiO2. There is no LRRE/HREE fractionation (LaN/YbN=0.5-1.5), me- dium negative Eu anomalies (δ Eu=0.3-0.6), high Y content and low Sr/Y ratio (~1.0). These granites exhibit relatively juvenile Nd T2.M model ages of 4.0 to 580 Ma and positive εNd(331 Ma) values of 6.2. to 7.65. The aforementioned characteristics are similar to those of ocean island or ocean ridge plagiogranites. However, the regional geology, especially its scale, precludes that the plagiogranite pluton was derived directly from fractionational crystallization of mantle-derived basaltic magma. We interpreted that the primary magma of the pluton might be tonalitic in composition generated by ca. 50% partial melting of the juvenile basaltic crust. The primary magma experienced intensive frac- tionational crystallization, and intruded into the middle to upper crusts to form the granite pluton. In combination with the previous regional geological data, it is concluded that the plagiogranite pluton was emplaced within the Tarim Block in respond to the Carboniferous continental rifting along the Tianshan orogenic belt.

关键词： western Tarim, Aoyitake plagiogranite, age, geochemistry, tectonic implications.

Local electronic structure and magnetic properties of 3d transition metal doped GaAs

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Science China(Physics,Mechanics & Astronomy) 2008年第5期51卷 470-480页

作者： LIN He1 & DUAN HaiMing2. Department of Chemistry,institute of Applied Chemistry,xinjiang University,{2. 83004.,China 2.epartment of Physics,xinjiang University,{2. 83004.,China Department of Chemistry Institute of Applied Chemistry Xinjiang University Urumqi China Department of Physics Xinjiang University Urumqi China

The local electronic structure and magnetic properties of GaAs doped with 3d transition metal (Sc, Ti, V, Cr, Mn, Fe, Co, Ni) were studied by using discrete variational method (DVM) based on density functional theory. The calculated result indicated that the magnetic moment of transition metal increases first and then decreases, and reaches the maximum value when Mn is doped into GaAs. In the case of Mn concentration of 1.4., the magnetic moment of Mn is in good agreement with the experimental result. The coupling between impure atoms in the system with two impure atoms was found to have obvious variation. For different transition metal, the coupling between the impure atom and the nearest neighbor As also has different variation.

关键词： diluted magnetic semiconductor density functional theory 3d transition metal cluster model electronic structure

FeS_(2. (pyrite) electrodeposition thin films and study of growth mechanism

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Science China(Technological Sciences) 2005年第6期48卷 601-611页

作者： DONG Youzhong1, ZHENG Yufeng1, ZHANG Xiaogang2. DUAN He1, SUN Yanfei1 & CHEN Yanhua1 1. Department of Physics, xinjiang University, urumqi 8300{2., China 2. institute of Applied Chemistry, xinjiang University, urumqi 8300{2., China Department of Physics Xinjiang University Urumqi China institute of Applied Chemistry Xinjiang University Urumqi China

Ferrous sulfide (FeS) thin films were initially electrodeposited on indium-tin oxide (ITO) substrates in the aqueous solution containing iron, sulfur elements and then annealed in the sulfur atmosphere. Thereby, we successfully obtained the single-phased iron pyrite (FeS2. thin films with good quality. The experimental parameters for electrodeposition and the post-growth thermal-dynamical conditions have been calculated so that more details about the effect of thermal-dynamical conditions on the micromechanism concerned with the iron pyrite crystal growth as well as the properties of the samples have been discussed.

关键词： electrodeposition, FeS2 (pyrite), thin films, growth dynamics.

Theoretical critical value curve and driving force formation of ecological migration in the arid land

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Chinese Science Bulletin 2006年第A1期51卷 196-203页

作者： ZHU Zi’an & ZHANG Xiaolei xinjiang institute of Ecology and Geography, Chinese Academy of Sciences, {2. 830011, China The Graduate School of the Chinese Academy of Sciences, Beijing 100039, China xinjiang Uygur Autonomous Region Development and Reform Commission, {2. 830002. China xinjiang institute of Ecology and Geography Chinese Academy of Sciences Urumqi China The Graduate School of the Chinese Academy of Sciences Beijing China xinjiang Uygur Autonomous Region Development and Reform Commission Urumqi China

干旱陆地的易碎的 eco 环境的特征确定它骚乱抵抗的能力更低。在干旱陆地的自然荒芜的绿洲在在宽 Gobi 沙漠散布的马赛克补丁。人口分发是极大地依赖于水资源。人口与驱散的分发，简单生产和生活被描绘风格，和贫穷和遥远。生态的迁居... 详细信息

干旱陆地的易碎的 eco 环境的特征确定它骚乱抵抗的能力更低。在干旱陆地的自然荒芜的绿洲在在宽 Gobi 沙漠散布的马赛克补丁。人口分发是极大地依赖于水资源。人口与驱散的分发，简单生产和生活被描绘风格，和贫穷和遥远。生态的迁居被执行的原因躺在生态的问题。生态的降级是生态的迁居的主要驱动力。然后，驱动力的力量取决于生态的降级的度。因此，是否执行生态的移植取决于生态的降级的程度。理论上，为在干旱陆地的精明的生态的移植的批评的值曲线通过生态学的相对问题的全面研究被提出，经济等等，在干旱陆地与生态的移植经验结合了，并且基于干旱环境的特征。在这篇文章，与这条曲线，理论研究和生态的迁居的一些实践从不做作的行为和生态的移植的驱动力形成的政府行为的观点被做了。它分析活跃驱动力(因素) 和否定力量(因素) ，并且指出预定和在干旱陆地实现生态的迁居的步骤。理论曲线表达某些创见和适用性，它为为实现生态的迁居工程评估生态的降级和理论底的度提供一个量的方法。

关键词：生态迁移临界值驱动力贫瘠地