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PCA-ICA化工过程监控中的PCA白化性能分析
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作者 姜庆超 颜学峰 《石油化工高等学校学报》 CAS 2012年第1期71-75,80,共6页
主元分析是基于独立元分析过程监控中一种重要而且常用的白化方法,可以有效地降低监控对象的维数。其基于正常样本数据,根据主元方差贡献率选取主元,保留正常样本中的大部分方差信息,消除噪声。在PCA模型中,每个主元的T2统计量表征着样... 主元分析是基于独立元分析过程监控中一种重要而且常用的白化方法,可以有效地降低监控对象的维数。其基于正常样本数据,根据主元方差贡献率选取主元,保留正常样本中的大部分方差信息,消除噪声。在PCA模型中,每个主元的T2统计量表征着样本数据沿该主元方向的变异程度。通过对故障样本数据每个主元的T2统计量分析,发现某些故障信息投影在方差较小且被舍弃的主元上,从而造成故障信息的损失,进而影响了ICA的监控性能,造成故障的漏检和故障源的误识别。最后,采用一个简易系统和TE过程,验证了PCA白化过程对ICA监控性能的影响。 展开更多
关键词 主元分析 数据白化 独立元分析 过程监控
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借助Surfer软件进行水下地形演变监测分析
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作者 余学渊 《中国水运》 2017年第5期29-30,共2页
长江干线航道水下地形复杂多变,冲刷和回淤幅度此起彼伏,本文简要叙述利用水深测量数据对长江南京以下12.5米深水航道水下地形演变监测分析的方法,及制定航道水深监测周期的意义,着重介绍Surfer曲面测绘软件的等高线图示法、三维图示法... 长江干线航道水下地形复杂多变,冲刷和回淤幅度此起彼伏,本文简要叙述利用水深测量数据对长江南京以下12.5米深水航道水下地形演变监测分析的方法,及制定航道水深监测周期的意义,着重介绍Surfer曲面测绘软件的等高线图示法、三维图示法和断面图示法及其应用。 展开更多
关键词 河床演变 XYZ坐标 数据白化 碍航淤积速度
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Biotransformation of Ternary Mixture of Organic Industrial Waste into Poultry Feed
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作者 Lakhal Dounia Bahlaouan Bouchaib +5 位作者 Boutaleb Nadia Fathi Asmaa Taiek Taha Abouakil Nezha Lazar Said El Antri Said 《Journal of Agricultural Science and Technology(A)》 2018年第3期171-181,共11页
The objective of present study was to produce poultry feed with a best quality using ternary mixture of industrial wastes: fish industry waste, sugar industry waste (molasses) and yeast waste after 15 d biotransfor... The objective of present study was to produce poultry feed with a best quality using ternary mixture of industrial wastes: fish industry waste, sugar industry waste (molasses) and yeast waste after 15 d biotransformation using response surface methodology to design and analyze the experiment data. Changes in the nutritional quality and biochemical properties viz., pH, dry matter, conductivity, total organic carbon, total nitrogen, phosphorus, trimethylamine, protein, fat, carbohydrate, histamine, aflatoxins and minerals were evaluated during a biotransformation period of 15 d. The experimental findings revealed that the formulation including 50% of fish waste, 12.5% of molasses and 37.50% of yeast waste were found to be best quality poultry waste. It was characterized as odorless, with a stable pH, rich in protein, fat and carbohydrate as well as no alterations of bacteria and absence aflatoxins from the fifth day on ward. The nutritional value of the developed poultry fees was studied on a population of broiler chickens by incorporating with barley flour and eggshell. The product possesses a better nutritional quality comparable to commercially feed. 展开更多
关键词 Fish waste ternary mixture BIOTRANSFORMATION poultry feed response surface
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Zircon U-Pb geochronology and geochemistry of Early Cretaceous granodiorite porphyries in Hutouya,western Shandong and their implications for petrogenesis 被引量:2
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作者 YANG Haotian SHI Jiangpeng YANG Debin 《Global Geology》 2017年第1期32-39,共8页
Zircon LA-ICP-MS U-Pb age and whole-rock geochemistry data are presented for the Hutouya grano-diorite porphyries in Mengyin, western Shandong, to restrict its petrogenesis. The analyzed zircons exhibit os-cillatory g... Zircon LA-ICP-MS U-Pb age and whole-rock geochemistry data are presented for the Hutouya grano-diorite porphyries in Mengyin, western Shandong, to restrict its petrogenesis. The analyzed zircons exhibit os-cillatory growth zoning and core-rim textures in the cathodoluminescence images and have high Th/U ratios (0.04-1.66),indicating its magmatic origin. The youngest group of magmatic zircon yields weighted mean 206Pb/238U age of 132 ±2 Ma, which represents the forming age of the granodiorite porphyries, i. e., the Early Cretaceous. The oldest group of magmatic zircon 207Pb/206Pb ages ranges from 2 398 Ma to 2 370 Ma, yielding a weighted mean age of 2 389 ±23 Ma,suggesting that the basement of the North China Craton should exist in the research area. Geochemically, the samples are characterized by high Si02(70. 38% and 64. 87% ) , low MgO (0.60% and 1. 53% ) and Mg# values (42. 92 and 50. 42). Moreover, they show enrichment of light rare earth elements and large ion lithophile elements (e. g. Rb, Ba and K) , depletion of heavy rare earth ele-ments and high field strength elements (e. g. Nb and Ta) , positive anomaly of Pb, and negative anomaly of Ti. These results, together with previously published data, indicate that the Hutouya granodiorite porphyries were derived from partial melting of a delaminated lower continental crust and subsequent interaction with the mantle peridotites. They are consistent with the period of lithospheric thinning beneath the eastern North China Craton and may be formed in an extensional tectonic environment. 展开更多
关键词 Early Cretaceous GEOCHEMISTRY PETROGENESIS HUTOUYA North China Craton
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Relationship between Seed Yield and Yield Chracteristics in Faba Bean (Vicia faba L.) by GGE-Biplot Analysis
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作者 Sinem Koc Adnan Orak +1 位作者 Hazlm Serkan Tenikecier Nezihi Saglam 《Journal of Life Sciences》 2018年第2期105-110,共6页
Viciafaba L. was domesticated around 8000 BC in the Near East; the crop spread to Central Europe and Russia through Anatolia, the Danube Valley and the Caucasus; to Eastern Mediterranean regions through the Mediterran... Viciafaba L. was domesticated around 8000 BC in the Near East; the crop spread to Central Europe and Russia through Anatolia, the Danube Valley and the Caucasus; to Eastern Mediterranean regions through the Mediterranean coast and the Isles; from Egypt and Arabian Coast (the Arabia Felix) to Abyssinia; through Mesopotamia to India and China probably during the first millennium AD (only land races of major type, the latest in being produced, were known in China until recently). Faba bean (Vicia faba L.) is grown world-wide as a protein source for food and feed. The importance of nutzients (micro and macro) for human growth is universally recognized. An investigation was camed out to select the most successful faba bean genotypes to estimate for seed yield and some of agro-morphological traits. Effective interpretation of the dataon breeding programes is important at all stages of plant improvment. The GT (genotype by trait) was used for two-way faba bean genotypes with multiple traits. For this purpose, six faba bean genotypes with specific components were tested and the GT biplot for genotype data explained 83% of total variation of the standardized data. The polygon view of GT presented for five traits of faba bean genotypes showed three vertex genotypes as Goryaka, Karcacaoglan and Seher. Genotype G0ryaka had the highest values for most of the traits. It was demonstzaited that the selection of high seed yield will be via hundred seed weight and planth height. These traits should be considered meanwhile as effective selection criteria developing high yielding faba bean genotypes because of their large contibution to grain yield. The genotypes Goryaka and Karacaoglan could be well-considered for improving of desirable candidate in selection of improvement studies. 展开更多
关键词 Faba bean GGE-biplot seed yield plant height correlation.
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Effect of Aidi injection plus chemotherapy on gastric carcinoma:a Meta-analysis of randomized controlled trials 被引量:9
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作者 Wang Jiancheng Ge Long +4 位作者 Zhao Ye Li Jinlong Zhang Pan Mao Lei Yang Kehu 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2015年第4期361-374,共14页
OBJECTIVE: To conduct a Meta-analysis of studies on the effect of Aidi injectioncombined with chemotherapy versus chemotherapy alone in the treatment of gastric cancer(GC).METHODS: Nine electronic databases and six gr... OBJECTIVE: To conduct a Meta-analysis of studies on the effect of Aidi injectioncombined with chemotherapy versus chemotherapy alone in the treatment of gastric cancer(GC).METHODS: Nine electronic databases and six gray literature databases were comprehensively searcheduntil April 20,2013. Two reviewers independently selected and assessed included trialsaccording to the inclusion and exclusion criteria. The risk of bias tool from the Cochrane Handbook version 5.1.0was used to assess trial quality. All calculations were performed using Review Manager 5.0.RESULTS: Thirty-two studies including 1927 participants met the inclusion criteria,most of which were low quality. Compared with chemotherapy alone,Aidi injection plusthe same chemotherapy significantly improved the effective rate [OR = 1.52,95% CI(1.24,1.86),P < 0.0001],clinical beneficial rate [OR = 1.77,95% CI(1.33,2.36),P < 0.0001],and quality of life [OR = 3.02,95% CI(2.39,3.82),P <0.000 01]. There was a significant improvement in nausea and vomiting incidence [OR = 0.34,95%CI(0.24,0.47),P < 0.000 01],diarrhea [OR = 0.47,95%CI(0.33,0.69),P < 0.000 01],leukopenia( 3,0.51),P = 0.05],hemⅢ-ogⅣ)[OR = 0.34,95%CI(0.2lobin decrease(thromⅢ-boⅣ) [OR = 0.42,95%CI(0.18-1.00),P = 0.05],cytopenia(4],and Ⅲ-damⅣ) [OR = 0.46,95%CI(0.22,0.96),P = 0.0age to liver function [OR = 0.36,95%CI(0.24,0.54),P < 0.000 01].CONCLUSION: Aidi injection combined with chemotherapy significantly improved the clinical effect of chemotherapy,reducing the incidence of adverse events. Use of the CONSORT statement for randomized controlled trials is recommended for stricter reporting. 展开更多
关键词 Drug therapy Stomach neoplasms Review Randomized controlled trial Aidi injection
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