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Organic Chemistry Frontiers 2022年第4期9卷 1143-1151页

作者： Xiahe Chen Chaoqin Cao Yun-Fang Yang yuan-Bin she College of Chemical Engineering Zhejiang University of TechnologyHangzhouZhejiang 310014China

The mechanisms and regioselectivities of the Ir-porphyrin-catalyzed C–H insertion reaction of quinoid carbene(QC)were investigated by density functional theory(DFT)*** competing catalytic cycles were identified as the hydrogen-atom abstraction by quinoid oxygen(HAA-O)and hydrogen-atom abstraction by carbene carbon(HAA-C)catalytic cycles.

关键词： porphyrin insertion catalyzed

Difference in microstructural characteristics of stamp-charged coke and gravity-charged coke with approximate macroscopic performance

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Journal of Iron and Steel Research International 2024年第5期31卷 1050-1062页

作者： Chong Zou Zheng-yan Huang Jian-yun Li Bin Li Shi-wei Liu yuan she School of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi’an710311ShaanxiChina Technical Center of Shandong Iron and Steel Co. Ltd.(Laiwu Branch)Jinan271104ShandongChina

The microstructural characteristics including optical texture,porosity and pore structure and chemical structure of stamp-charged coke(SCC)and gravity-charged coke(GCC)with similar conventional macro-indicators were investigated,and the properties including micro-strength,reactivity of coke matrix and that after alkali enrichment were comparatively studied by various characterization *** anisotropic structure of SCC is composed of high content of fine mosaic texture,while the content of medium mosaic texture,coarse texture and fibrous texture is *** statistical average shows that the fine mosaic average of SCC(24.89%)is 3.78 times the GCC average(6.58%),and the coarse mosaic average(1.24%)is only about 1/3 of the GCC average(3.43%).The porosity of SCC is lower than that of GCC,but tamping process does not lead to the fact that the number of closed pores of SCC is significantly lower than that of *** the structure of SCC is compact,its pore number is large and the pore wall is *** of coke with diameter less than 150 nm seem unaffected by tamping *** aromatic structure of SCC was less ordered than that of GCC,which was speculated to be related to the addition of more low metamorphic coal in *** microscopic strength and structural strength of SCC are lower than those of *** reactivity of coke matrix is affected by the specific surface area,but it is not the determining factor of its *** improvement in dissolution reactivity of coke after potassium enrichment is independent of coke type.

关键词： Stamp-charged coke Optical texture Porosity Microstructure Reactivity

A Modified Model for Calculating Theoretical Flame Temperature in Blast Furnace and Its Application

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Journal of Iron and Steel Research International 2015年第1期22卷 9-14页

作者： Li ZHU Keng WU Er-hua ZHANG yuan she Wen-long ZHAN Qi-hang LIU State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing

The theoretical flame temperature （TFT） before tuyere, always highly concerned by blast furnace （BF） operators, is one of the most important parameters for evaluating the thermal state of hearth. However, some influ- encing parameters, for example, the SiO2 reduction by carbon, were always neglected or inaccurate when calculating the TFT. According to the definition of TFT, the temperature of coke into raceway and the reduction rate of SiO2 in ash of coke and pulverized coal were obtained by analyzing the samples before tuyere in blast furnace. Taking full ac- count of different factors, a modified model for calculating the TFT in blast furnace was established. The effects of the oxygen enrichment rate, the reduction rate of SiO2 in raceway, the ash content in coke and pulverized coal and the pulverized coal injection （PCI） rate on TFT were determined quantitatively. The modified model was applied to selecting the used coal for PCI in blast furnace. Considering the different SiO2 contents of mixed coal, the calculated TFT remained a stable level. This showed that the selected coal could be suitable for PCI in blast furnace.

关键词： theoretical flame temperature blast furnace SiO2 reduction rate modified model

Rapid recognition of Chinese herbal pieces of Areca catechu by different concocted processes using Fourier transform mid-infrared and near-infrared spectroscopy combined with partial least-squares discriminant analysis

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Chinese Chemical Letters 2013年第7期24卷 639-642页

作者： Hai-Yan Fu Dong-Chen Huang Tian-Ming Yang yuan-Bin she Hao Zhang Third Class Laboratory About Ethno-medicine of State Administration of Traditional Chinese Medicine College of PharmacySouth-Central University for Nationalities Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education.College of Chemistry and Materials Science South-Central University for Nationalities Third Class Laboratory About Ethno-medicine of State Administration of Traditional Chinese Medicine College of Pharmacy.South-Central University for Nationalities

Rapid and sensitive recognition of herbal pieces according to different concocted processing is crucial to quality control and pharmaceutical effect. Near-infrared （NIR） and mid-infrared （MIR） technology combined with supervised pattern recognition based on partial least-squares discriminant analysis （PLSDA） was attempted to classify and recognize six different concocted processing pieces of 600 Areca catechu L. samples and the influence of fingerprint information preprocessing methods on recognition performance was also investigated in this work. Recognition rates of 99.24%, 100% and 99.49% for original fingerprint, multiple scatter correct （MSC） fingerprint and second derivative （2nd derivative） fingerprint of NIR spectra were achieved by PLSDA models, respectively. Meanwhile, a perfect recognition rate of 100% was obtained for the above three fingerprint models of MIR spectra. In conclusion, PLSDA can rapidly and effectively extract otherness of fingerprint information from NIR and MIR spectra to identify different concocted herbal pieces ofA. catechu.

关键词： NIR and MIR spectroscopy Partial least-squares discriminant analysis Different concocted processing herbal pieces

Improvement of Plant Regeneration from Immature Embryos of Wheat Infected by Agrobacterium tumefaciens

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Agricultural Sciences in China 2011年第3期10卷 317-326页

作者： TAO Li-li YIN Gui-xiang DU Li-pu SHI Zheng-yuan she Mao-yun XU Hui-jun YE Xing-guo National Key Facility of Crop Gene Resources and Genetic Improvement Key Laboratory of Crop Genetics and Breeding Ministry ofAgriculture~Institute of Crop Sciences Chinese Academy of Agricultural Sciences Beijing 100081 P.R.China

Wheat, one of the most important food crops, has been extensively studied with respects to plant regeneration and transformation employing the immature embryos as recipient tissues. However, the transformed tissues often become severely necrotic after co-cultivation with Agrobacterium, which is one of the major obstacles in gene delivery. In this study, wheat varieties CB037, Kenong 199, Xinchun 9, Lunxuan 987, and Shi 4185 showed desirable culture potential or high infection ability in Agrobacterium-mediated transformation. Similarly, optimal regeneration conditions were determined by testing their ability to inhibit the cell necrosis and cell death phenotype. Two auxins of 2,4-dichlorophenoxyacetic acid （2,4-D） and 3,6-dichloro-o-anisic acid （dicamba） were evaluated for highly significant effect on both callus and plantlet production, although they were genotype-dependent in wheat. Substitution of 2,4-D by dicamba enhanced the growth and regeneration ability of callus from the immature embryos of most genotypes tested. The callus growth state couldn’t be modified by adding antioxidants such as ascorbic acid, cysteine, and silver nitrate or organic additives such as thiamine HCl and asparagine to the media. On the contrary, the best tissue statement and plant regeneration was achieved by employing the media containing the simplest MS （Murashige and Skoog） components and dicamba without organic components and vitamins. Thereby, our results are thought to inhibit wheat cell necrosis effectively and suggested to be used for more wheat genotypes.

关键词： wheat immature embryos Agrobacterium tumefaciens transformation genotypes plant regeneration

基于QFD、TRIZ和田口方法的问题解决理论研究

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系统工程与电子技术 2008年第5期30卷 851-857页

作者：石贵龙佘元冠北京科技大学管理学院北京100083

针对传统QFD技术仅能提出问题而不能解决问题的缺陷,提出了以QFD的质量屋为基础、以TRIZ理论为问题解决工具、以田口方法的损失函数为度量标准的QFD问题解决理论。该理论以产品功能为纽带,利用TRIZ理论的物质——场分析和冲突问题解决矩... 详细信息

针对传统QFD技术仅能提出问题而不能解决问题的缺陷,提出了以QFD的质量屋为基础、以TRIZ理论为问题解决工具、以田口方法的损失函数为度量标准的QFD问题解决理论。该理论以产品功能为纽带,利用TRIZ理论的物质——场分析和冲突问题解决矩阵,可使设计人员获得实现功能的具体途径及解决问题的适用原理。通过田口的实验设计方法和损失函数可以确定实现功能的最佳参数组合。给出了解决问题和确定参数最佳组合的具体步骤。

关键词：质量机能展开质量屋发明问题解决理论田口方法实验设计损失函数

全数字矢量控制SVPWM的变频调速系统实现

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电力自动化设备 2006年第2期26卷 76-79页

作者：佘艳佘远华顺德职业技术学院电子系广东顺德528333 武汉威科自动控制技术公司湖北武汉430014

运用矢量控制并结合电压空间矢量脉宽调制(SVPWM)技术,开发了以数字信号处理器(DSP)芯片TMS320LF2407为核心的全数字矢量控制的变频调速系统。对系统总体设计方案进行了研究分析,硬件设计中详细介绍了控制回路的电流检测模块、电机转速... 详细信息

运用矢量控制并结合电压空间矢量脉宽调制(SVPWM)技术,开发了以数字信号处理器(DSP)芯片TMS320LF2407为核心的全数字矢量控制的变频调速系统。对系统总体设计方案进行了研究分析,硬件设计中详细介绍了控制回路的电流检测模块、电机转速和位置检测模块、PWM输出和故障输入电路。软件控制程序主要由主程序和SVPWM中断服务子程序组成,主程序主要完成DSP各功能部件的初始化、参数设定及转速实时显示;SVPWM中断服务子程序主要完成电流值采样、当前转速和θ值的计算等。实验结果表明:该实验装置结构简单,控制精度高,输出电流谐波失真小,有较强的实时性。

关键词：矢量控制空间矢量脉宽调制数字信号处理器变频调速系统

Characterization of Aroma-Active Components and Antioxidant Activity Analysis of E-jiao(Colla CoriiAsini)from Different Geographical Origins

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Natural Products and Bioprospecting 2018年第2期8卷 71-82页

作者： Shan Zhang Lu Xu Yang-Xi Liu Hai-Yan Fu Zuo-Bing Xiao yuan-Bin she State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology College of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014China College of Material and Chemical Engineering Tongren UniversityTongren 554300GuizhouChina School of Pharmaceutical Sciences South-Central University for NationalitiesWuhan 430074China School of Perfume and Aroma Technology Shanghai Institute of TechnologyShanghai 201418China

E-jiao(Colla Corii Asini,CCA)has been widely used as a healthy food and Chinese *** authentic CCA is characterized by its typical sweet and neutral fragrance,its aroma components have been rarely *** work investigated the aroma-active components and antioxidant activity of 19 CCAs from different geographical *** extracts obtained by simultaneous distillation and extraction were analyzed by gas chromatography-mass spectrometry(GC-MS),gas chromatography-olfactometry(GC-O)and sensory *** antioxidant activity of CCAs was determined by ABTS and DPPH assays.A total of 65 volatile compounds were identified and quantified by GC-MS and 23 aroma-active compounds were identified by GC-O and aroma extract dilution *** most powerful aroma-active compounds were identified based on the flavor dilution factor and their contents were compared among the 19 *** component analysis of the 23 aroma-active components showed 3 significant *** correlation analysis between antioxidant assays and the 23 aroma-active compounds indicates strong correlation(r=0.9776,p=0.0281).Analysis of aroma-active components shows potential for quality evaluation and discrimination of CCAs from different geographical origins.

关键词： Colla Corii Asini Aroma-active compounds Antioxidant activity Chemometrics

“现实”的实践性反思及其价值论澄明——马克思新哲学观的确立及革命意义

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西北大学学报（哲学社会科学版） 2019年第1期49卷 57-64页

作者：袁祖社陕西师范大学哲学与政府管理学院陕西西安710119

诞生于19世纪40年代的马克思新哲学,以"现实的人及其历史发展的科学"为直接对象,开显了哲学关注、思考和重构现实人的生存与生活世界的先河。这一以"现实"为逻辑规制的新哲学,秉持"社会化了的人类"对于"市民社会"共同体的超越与矫正性逻... 详细信息

诞生于19世纪40年代的马克思新哲学,以"现实的人及其历史发展的科学"为直接对象,开显了哲学关注、思考和重构现实人的生存与生活世界的先河。这一以"现实"为逻辑规制的新哲学,秉持"社会化了的人类"对于"市民社会"共同体的超越与矫正性逻辑,为历史理性的自我变革做了新的奠基,开创了形态学意义上"文明人类的新哲学"或"哲学的文明新时代",体现并彰显了文明人类实践性理智觉醒的新思想高度;而其在"问题在于改变世界"的宏伟宣言以及所坚定高扬的"每个人的自由全面发展"的伟大旗帜,表征了以唯物史观为核心的新哲学之新文明高度意义上最为鲜明、最为深刻的人学价值论旨趣。新时代中国特色社会主义理论和实践所开显的,是先进、合理的社会公共价值导向、"美好生活"本位的文明新现实,有力地彰显了中国道路及其伟大创新实践之巨大的感召力和生生不息的强大生命力。

关键词：现实实践性马克思新哲学

取代金属(铁、锰、钴、铜、锌)卟啉的光谱分析

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光谱学与光谱分析 2008年第10期28卷 2312-2317页

作者：王兰芝佘远斌北京工业大学环能学院绿色化学与精细化工研究所北京100124 河北师范大学化学与材料科学学院河北石家庄050011

对系列取代金属(铁、锰、钴、铜、锌)卟啉化合物的紫外光谱、红外光谱、远红外光谱进行了详尽的测试和分析,揭示了不同结构金属卟啉的光谱规律,从理论上分析了形成光谱规律的原因。针对目前氯化铁卟啉轴向Fe—Cl键远红外表征的报道结果... 详细信息

对系列取代金属(铁、锰、钴、铜、锌)卟啉化合物的紫外光谱、红外光谱、远红外光谱进行了详尽的测试和分析,揭示了不同结构金属卟啉的光谱规律,从理论上分析了形成光谱规律的原因。针对目前氯化铁卟啉轴向Fe—Cl键远红外表征的报道结果不一致性,采用理论分析与实验测定相结合的方法,探索了氯化铁卟啉中Fe—Cl键远红外吸收规律。研究结果表明:Fe—Cl键的振动吸收频率不是固定不变的,而是与卟啉环的结构有关,且和Fe—Cl的键长呈线性关系。

关键词：金属卟啉紫外-可见光谱红外光谱远红外光谱轴向Fe—Cl键