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Property Prediction Using Hierarchical Regression Model Based on Calibration

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Journal of Iron and Steel Research International 2010年第8期17卷 30-35页

作者： TAN Shuai CHEN Wei-dong WANG Fu-li chang yu-qing School of Information Science and Engineering Northeastern UniversityShenyang 110004LiaoningChina Baosteel Industry Inspection Co Shanghai 201900 China)

Redundant information and inaccurate model will greatly affect the precision of quality prediction.A multiphase orthogonal signal correction modeling and hierarchical statistical analysis strategy are developed for the improvement of process understanding and quality *** orthogonal signal correction is used to remove the structured noise in both X and Y,which does not contribute to prediction *** corresponding loading vectors provide good interpretation of the covariant part in X and *** to background,hierarchical PLS（Hi-PLS）is used to build regression model of process variables and property *** blocking leads to two model levels：the lower level shows the relationship of variables in each annealing furnace using hierarchical PLS based on bidirectional orthogonal signal correction,and the upper level reflects the relationship of annealing *** analysis of continuous annealing line data,the production precisions of hardness and elongation are improved by comparison of previous *** demonstrates the efficiency of the proposed algorithm for better process understanding X and property interpretation Y.

关键词： continuous annealing line property prediction hierarchical PLS orthogonal signal correction

Quality Prediction of Strip Steel Based on Windows-Mean MPLS

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Journal of Iron and Steel Research International 2010年第7期17卷 28-33页

作者： chang yu-qing WANG Jin-fen TAN Shuai WANG Fu-li CHEN Wei-dong School of Information Science and Engineering Northeastern University Shenyang 110819 Liaoning China Baosteel Industry Inspection Co Shanghai 201900 China

A windows-mean multi-way partial-least squares（MPLS）method was proposed to build the strip steel quality prediction model for continuous annealing *** proposed method can deal with the problem of large time lag in hardness measurement of the strip steel and the difficulties in building mechanism *** on the average trajectories of the process variable information,the proposed method was used to realize the strip steel quality *** with the traditional MPLS,the proposed method can eliminate the abundant and redundant process information and reduce the number of the model input ***,it can avoid the uneven-length modeling data problem of the traditional MPLS *** simulation result demonstrates the performance and advantages of the proposed method for predicting the strip steel hardness.

关键词： continuous annealing strip steel hardness quality prediction windows-mean MPLS

Quantitative characterization of sealing integrity by caprock of Paleocene Artashi Formation gypsolyte rock in Kashi Sag of Tarim Basin, NW China

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Journal of Central South University 2019年第3期26卷 695-710页

作者： LIAO Xiao WANG Zhen-liang FAN chang-yu yu chang-qing yu Zhu-yu College of Science Chang'an University State Key Laboratory of Continental Dynamics Department of Geology Northwest University The Institute of Geology Chinese Academy of Geological Sciences

Maintaining caprock integrity is prerequisite for hydrocarbon accumulation. And gypsolyte caprock integrity is mainly affected by fracturing. Composition, damage behavior and mechanical strength of Paleocene Artashi Formation gypsolyte rock that seals significant petroleum in the Kashi Sag of Tarim Basin had been revealed via X-ray diffraction and triaxial compression test. The results indicate the Artashi Formation can be lithologically divided into the lower and upper lithologic members. The lower member comprises gypsum as the dominant mineral, and the cohesion and friction coefficient are 8 MPa and 0.315, respectively. Similarly, the upper lithologic member consists mainly of anhydrite at the cohesion and coefficient of internal friction values of 18 MPa and 0.296. Given that the failure criterion and brittle-ductile transition factors during burial, the sealing integrity of Artashi Formation can be quantized for seven different stages. The reservoirs at the bottom of Artashi Formation caprock buried from 2285 m to 3301 m are expected to be the most favorable exploration target in the Kashi Sag.

关键词： brittle-ductile transition failure criterion sealing integrity gypsolyte caprock Artashi Formation Kashi Sag

Cloning and Expression of Bile Salt Hydrolase Gene from Lactobacillus plantarum M1-UVS29

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Journal of Northeast Agricultural University(English Edition) 2015年第2期22卷 60-66页

作者： yu chang-qing Li Rong Department of Organization Bayi Agricultural University Center of Railway Disease Prevention and Control

We cloned and expressed bile salt hydrolase gene ofLactobacillus plantarum M1-UVS29 in Lactococcus lactis NZ9000 successfully. Gene-specific primers for amplification of L. plantarum bsh were designed by using sequence which availabled from GenBank. The production of PCR amplicon was confirmed by sequencing and cloned into pMD18-T vector, and then recombined into expression vector pNZ8148 and yielding vector pNZ8148-BSH, pNZ8148-BSH was transferred into Lactococcus lactis NZ9000. Sequencing indicated that the cloned bsh fragment contained 995 nucleotides, and shared 99.3% sequence homology with bsh gene from L. plantarum MBUL10. Cloned bsh fragment was successfully transduced into NICE expression system and confirmed by PCR and restriction digest. Recombinant BSH protein was analyzed by SDS-PAGE. The molecular weight of BSH protein was approximately 37 ku. Activity of the expressed protein was 0.77 μmol· min^-1. The successfully expressed proteins by genetic engineering technology made the function of lactic acid bacteria be abundant and laid the foundation for further researches into cholesterol-lowering lactic acid bacterium food and probiotics.

关键词： bile salt hydrolase gene cloning expression Lactococcus lactis NZ9000

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荧光产生时间与荧光峰值波长关系的研究

光谱学与光谱分析 2005年第1期25卷 73-75页

作者：刘杰于常青北京联合大学师范学院电子信息系北京100011 北京理工大学光电工程系北京100081

用激光诱导荧光(LIF)方法对芳香族化合物蒽进行了时间分辨谱研究,介绍了所用测试系统的组成和测试方法,获得了蒽的荧光强度波长时间三维立体图、峰值荧光时间图、等高图,并对实验结果进行了分析。研究表明,荧光产生的时间与峰值波长有关... 详细信息

用激光诱导荧光(LIF)方法对芳香族化合物蒽进行了时间分辨谱研究,介绍了所用测试系统的组成和测试方法,获得了蒽的荧光强度波长时间三维立体图、峰值荧光时间图、等高图,并对实验结果进行了分析。研究表明,荧光产生的时间与峰值波长有关系,长波早于短波。

关键词：激光诱导荧光时间谱峰值波长

用于油气检测的地震属性差异分析方法——在塔中地区的应用

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中国地质 2011年第4期38卷 1061-1065页

作者：于常青中国地质科学院地质研究所北京100037

反射地震资料的属性与油气勘探的最终目标——油、气有密切联系。利用地震波场的属性中隐藏着识别油气藏的密码进行油气检测,是一项新的油气检测技术。有油气存在时其地震属性会在局部产生非常规变异,寻找这种变异的差异,就可以进行油... 详细信息

反射地震资料的属性与油气勘探的最终目标——油、气有密切联系。利用地震波场的属性中隐藏着识别油气藏的密码进行油气检测,是一项新的油气检测技术。有油气存在时其地震属性会在局部产生非常规变异,寻找这种变异的差异,就可以进行油气检测,这也就为油气圈闭的地球物理评价提供了基础。通过在塔里木油田的试验表明,上述检测油气的属性差异分析方法技术是有效的。建议在油气钻探之前,首先进行油气检测和圈闭评价,以减少风险,提高油气勘探的成功率。

关键词：油气勘探地震属性地震波场差异分析塔里木盆地

Exploring the Wenchuan earthquake fault through the accurate location of WFSD-4#Well using seismic reflection

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Applied Geophysics 2022年第4期19卷 473-484,603页

作者： Feng Yang-Yang yu chang-qing Li Hai-Bing Qu Chen Wu Chan Wang Qi Luo Su Huang Jin-Peng Rehana Ghazi Engineering Research Center of Nuclear Technology Application Ministry of EducationEast China University of TechnologyNanchangJX330013China Institute of Geology Chinese Academy of Geological SciencesBeijing100037China School of Earth Sciences and Engineering Nanjing UniversityNanjing210023China Tuha Division BGP Inc.CNPCHami839009China Institute of Geophysics and Geomatics China University of GeosciencesWuhan430074China School of Remote Sensing and Information Engineering Wuhan UniversityWuhan430074China Faculty of Land Resource Engineering Kunming University of Science and TechnologyKunming650093China

Deep drilling data on seismogenic faults that are obtained directly can help in understanding earthquake mechanisms and the resulting changes in deep structure and material ***,geophysical data are necessary to ensure that the planned borehole accurately drills through the target *** this study,the deep crustal structure of the Longmenshan fault is explored to obtain seismogenic fault characteristics of the Wenchuan earthquake.A scientific drilling project,Wenchuan Earthquake Fault Scientific Drilling No.4 Borehole(WFSD-4)is proposed with a borehole designed to drill through the north section of the fault zone while penetrating as many geological bodies and target layers related to seismogenic fault slip as ***-precision seismic exploration is then carried out to study the deep structure of the fault zone and achieve the scientific objective of the *** high-precision deep seismic reflection lines were arranged perpendicularly to the fault zone,and data were obtained through special acquisition schemes and processing ***,the surface position and drilling depth route of WFSD-4 are determined based on the interpretation results of seismic *** seismic reflection method for site selection of the Wenchuan earthquake fault scientific drilling is proven feasible by comparing the interpretation with the actual drilling results,laying the foundation for further study on the deep structures of fault zones.

关键词： Wenchuan earthquake site selection of drilling seismic reflection special processing method

Mutagenesis of Arachidonic Acid-producing Mortierella Isabellina and Analyses of Δ~6-desaturase Role by qPCR

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Journal of Northeast Agricultural University(English Edition) 2013年第3期20卷 63-70页

作者： Yao Di yu chang-qing Yang Jian Li Li-na College of Food Heilongjiang Bayi Agricultural University Quality Supervision and Inspection Center of Agricultural Processed Products on Agriculture Ministry

Arachidonic acid （AA or ARA）, an essential to-6 polyunsaturated fatty acid （PUFA）, can be produced by Mortierella isabellina. Mutagenesis on Mortierella isabellina As3.3410 was induced to raise ARA production. The mutant strain of YZ-124 had the highest ARA of 4.72 g. L-1, which was 5.5 times higher than that of the original strain 3.3410. mRNA expression level of △ 6- desaturase was determined in five different kinds of ARA-producing Mortierella isabellina after cultured for 7 days, and in the mutant strain YZ-124 over a 3-8 day time-course. In addition, the desaturase activity and ARA content were measured at the selected time points. The lowest expression of △6-desaturase was observed in the original strain and the highest expression in the mutant strain YZ-124, which increased with increasing time in culture. Furthermore, a positive correlation was observed between the expression levels of △6-desaturase and ARA content. Based on this, △6-desaturase played a significant role in ARA synthesis pathway in Mortierella isabellina.

关键词： Mortierella isabellina,△6-desaturases arachidonic acid real-time PCR

碳纤维表面涂层对碳纤维增强锂铝硅玻璃陶瓷复合材料热导率的影响

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材料工程 2018年第6期46卷 101-105页

作者：于长清陈利裴雨辰天津工业大学复合材料研究所先进纺织复合材料教育部重点实验室天津300387 中国航天科工集团航天特种材料及工艺技术研究所北京100074

通过溶胶浸渍的方法在碳纤维表面涂覆锂硅溶胶,在高温热处理后,在碳纤维表面形成了二阶和四阶石墨插层化合物。采用涂层处理后碳纤维制备碳纤维增强锂铝硅(Cf/LAS)玻璃陶瓷复合材料。结果表明,碳纤维表面石墨插层化合物的形成,显著提高... 详细信息

通过溶胶浸渍的方法在碳纤维表面涂覆锂硅溶胶,在高温热处理后,在碳纤维表面形成了二阶和四阶石墨插层化合物。采用涂层处理后碳纤维制备碳纤维增强锂铝硅(Cf/LAS)玻璃陶瓷复合材料。结果表明,碳纤维表面石墨插层化合物的形成,显著提高了Cf/LAS复合材料的热传导能力,提高热压烧结温度有利于热导率的提高。碳纤维表面无涂层处理的Cf/LAS复合材料的热导率在1.1~1.3W/(m·K)之间,碳纤维表面经过涂层处理后,Cf/LAS复合材料的热导率从1.3W/(m·K)提高到2.2W/(m·K),提高了70%。

关键词：碳纤维锂铝硅玻璃陶瓷复合材料热导率