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Chinese Journal of Natural Medicines 2017年第7期15卷 550-560页

作者： LU Jin-Jin hu xue-wen LI Ping CHEN Jun State Key Laboratory of Natural Medicines China Pharmaceutical University Nanjing 210009 China

Si-Miao-Wan(SMW), a tradiational Chinese medicinal formula consisting of Atractylodis Rhizoma, Phellodendri Chinensis Cortex, Coicis Semen, and Achyranthis Bidentatae Radix, has been used for the treatment of gout and gouty arthritis for many years. In the present study, a liquid chromatography quadrupole-time-of-flight mass spectrometry(LC-Q-TOF/MS) method was established to identify the multiple constituents of SMW and its metabolites in rat biological samples after oral administration. A total of 48 compounds in SMW, including 21 alkaloids, 12 organic acids, 2 terpenes, 3 lactones, 2 phytosterols, and 8 other compounds, were tentatively characterized with the diagnostic-ion filtering strategy. Based on the diagnostic ions applied to identify compounds in SMW, 28 prototype compounds and 10 metabolic compounds were detected in the biological samples. This was the first comprehensive drug metabolism investigation of SMW in rats. The developed method could be a useful means for identifying the multi-components in SMW and the metabolic components. The results may help explore the possible metabolic processes and mechanism of action for SMW in vivo.

关键词： Si-Miao-Wan LC-Q-TOF/MS Chemical constituents Metabolites

Effect of Alloying Element on Process Control of High Strength Hot-Rolled Dual Phase Steel

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Journal of Iron and Steel Research International 2011年第S1期18卷 792-795页

作者： ZHOU Le-yu,LIU Ya-zheng,hu xue-wen,ZHANG Da-wei (School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China) Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 100083 Peoples R China

Microstructure evolution of C-Si-Mn-Nb,C-Si-Mn-Cr-Nb and C-Si-Mn-Cr-Mo-Nb tested steels during step-cooling process were *** of alloying element and process data on microstructure and mechanical properties of high strength Nb bearing DP steel were analyzed,to illustrate the relationship between alloy composition design and process control stability during DP microstructure and property *** is shown that,700MPa ferrite and martensite DP steel is obtained respectively by three kinds of composition tested steel under different step-cooling process.C-Si-Mn-Nb steel with simple alloying design of low cost is provided with low hardenability,and has strong process sensibility during microstructure *** microstructure of ferrite and martensite of C-Si-Mn-Nb steel just can be obtained by coiling at low temperature of 250℃.The process control stability of C-Si-Mn-Cr-Nb steel is stronger than that of C-Si-Mn-Nb steel,to obtain DP microstructure by coiling at low temperature.C-Si-Mn-Cr-Mo-Nb steel with complex alloying design of high cost is provided with excellent process control *** element Mo can promote stabilizing of metastable austenite to obtain F+M DP microstructure by coiling at medium temperature of 600℃.

关键词： hot-rolled DP steel process control step-cooling microstructure evolution

中国学生英语双宾构式的习得——一项基于语料库的对比研究

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外语研究 2007年第5期24卷 48-53页

作者：胡学文南京大学外国语学院江苏南京210093

本文在认知语言学的框架下从语料库的角度研究中国学生习得英语双宾构式的情况。研究发现:1)中国学生的英语双宾构式的发展模式与英语母语儿童该结构的发展模式相似;2)中国学生使用的英语双宾构式的意义范围要小于本族语使用者的意义范... 详细信息

本文在认知语言学的框架下从语料库的角度研究中国学生习得英语双宾构式的情况。研究发现:1)中国学生的英语双宾构式的发展模式与英语母语儿童该结构的发展模式相似;2)中国学生使用的英语双宾构式的意义范围要小于本族语使用者的意义范围;3)中国学生英语双宾构式的错误主要源于汉语母语的影响。

关键词：双宾构式语料库习得构式语法

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语言习得理论的认知解释

安徽大学学报（哲学社会科学版） 2007年第6期31卷 117-123页

作者：胡学文南京大学外国语学院江苏南京210093

认知语言学的认知观与天生论的认知观有很大的不同,表现为后者只承认语言的心智属性而前者还同时强调语言的认知合理性。语言能力与人的基本认知能力不可分,所以人的固化的语法知识也像其概念系统一样以范型—实例—引申的关系组织成一... 详细信息

认知语言学的认知观与天生论的认知观有很大的不同,表现为后者只承认语言的心智属性而前者还同时强调语言的认知合理性。语言能力与人的基本认知能力不可分,所以人的固化的语法知识也像其概念系统一样以范型—实例—引申的关系组织成一个复杂的网络系统。

关键词：认知观构式频率语言习得

Technical modifications & management innovations in exporting nuclear reactor projects

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Engineering Sciences 2009年第4期7卷 123-136页

作者： Mao Xiaoming Qin xijiu Ding hu xue Zhaoqun wen Shengjun China Zhongyuan Engineering Corporation of China National Nuclear Corporation Beijing 100191 China

As a main channel for the foreign economic cooperation of China nuclear industry,China Zhongyuan Engineering Corporation (CZEC) has been constantly engaged in technical modifications and management innovations in its exporting nuclear reactor *** the implementation of heavy water research reactor contract in Algeria,CZEC had established a complete and adequate design standards system in compliance with the international standards,and made significant modifications to the reference reactor in the aspects of reactor power and reactor safety,solved quite some technical issues which affected the reactor technical *** modifications and improvements enabled the technical parameters,safety features,reactor multipurpose application to attain to the advanced level in the *** the 300 MWe PWR NPPs in Pakistan,safety features had been updated in line with upgrading regulatory *** design philosophy and technology application demonstrated CZEC's creation and innovation on basis of constant safety enhancement of nuclear power *** had also been made by CZEC in promoting China made equipment items and components exportation.

关键词： research reactor technical modifications management innovations safety

在线作文自我修改对大学生英语写作结果的影响

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外语电化教学 2015年第3期 45-49页

作者：胡学文安徽大学大学外语教学部安徽合肥230601

在线自动作文评分系统的运用使得探究学生自我多次修改对写作结果的影响成为可能。通过对42篇同题记叙文的数据分析,本文发现学生的自我多次修改可以显著地提高作文的分数。经过多次自我修改的作文在作文长度、低频词汇使用、词汇丰富... 详细信息

在线自动作文评分系统的运用使得探究学生自我多次修改对写作结果的影响成为可能。通过对42篇同题记叙文的数据分析,本文发现学生的自我多次修改可以显著地提高作文的分数。经过多次自我修改的作文在作文长度、低频词汇使用、词汇丰富度、平均词长、从句数量等指标上均有显著的提高,但自我修改对平均句长不产生明显影响。在自动评阅环境中,自我修改的次数与作文成绩的提高不存在相关关系。

关键词：在线自我修改作文成绩写作质量在线自动评分系统

Research on the Welding Process of 590MPa Grade High Strength Automobile Beam Steel

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Journal of Iron and Steel Research International 2011年第S1期18卷 983-986页

作者： ZHANG Wu,hu xue-wen,LIU Yong-gang,YANG Xing-liang,ZHANG Jian (Technological Center,Maanshan Iron & Steel Co.,Ltd.,Maanshan243000,Anhui,China) Maanshan Iron & Steel Co Ltd Ctr Technol Maanshan 243000 Anhui Peoples R China

590 MPa automobile beam steel strips are used mainly to manufacture the longitudinal beam of ***’s welding properties are critical to the safety of *** microstructure and mechanical properties of welding joints processed by CO 2 arc welding with different welding parameters were *** results showed that the welding joints were weak when welding heat input were small and the non metal inclusions were found in the weld joints when welding heat input are *** quality of the welding joints is good enough at 170A of the arc current and 24V of the arc *** the other welding parameters fixed,the incomplete fusion defect occurred in the welding joint with backward welding,but the quality of the welding joint is good with forward welding.

关键词： automobile beam steel CO 2 arc welding welding process

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动词的截取与汉语双宾句式

山东外语教学 2012年第4期33卷 37-41页

作者：胡学文安徽大学大学英语教学部安徽合肥230601

汉语双宾句式在分类、结构层次和语义解读上均存在较大争议。根据汉语双宾句式动词的截取方式和截取顺序,本文指出汉语双宾句式可以分为"客体优先截取"、"受事优先截取"和"整体截取"三种双宾句式。这三种句式分别对应三种不同的事件结... 详细信息

汉语双宾句式在分类、结构层次和语义解读上均存在较大争议。根据汉语双宾句式动词的截取方式和截取顺序,本文指出汉语双宾句式可以分为"客体优先截取"、"受事优先截取"和"整体截取"三种双宾句式。这三种句式分别对应三种不同的事件结构类型,其中前两种为包含两个子事件的复杂事件,后一种为简单事件。

关键词：截取双宾句式事件结构

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AOD精炼在高端铸钢件制造中的应用

铸造 2018年第5期67卷 451-453页

作者：窦文哲胡学文张涛安徽应流集团安徽霍山237200

总结了某企业十多年的AOD工艺实践,通过简要的理论分析,结合实际生产结果,阐明了AOD精炼在铸钢厂制造特殊材质铸件和高附加值铸件中的重要性,介绍了在AOD应用过程中的一些实践经验。

关键词： AOD精炼高端铸钢件生产实践

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非化学药剂阻垢技术分析研究

华东电力 2013年第10期41卷 2195-2200页

作者：胡学文许祥茂武汉凯迪电力工程有限公司武汉430223

化学水处理药剂因效果好、见效快,广泛应用于工业循环冷却水系统设备的阻垢、缓蚀、杀菌灭藻处理,但其使用成本高、运行浓缩倍率不高、排污时增加了对环境影响,而非化学加药法处理循环冷却水已有成功应用的工程实例报道。介绍了对非化... 详细信息

化学水处理药剂因效果好、见效快,广泛应用于工业循环冷却水系统设备的阻垢、缓蚀、杀菌灭藻处理,但其使用成本高、运行浓缩倍率不高、排污时增加了对环境影响,而非化学加药法处理循环冷却水已有成功应用的工程实例报道。介绍了对非化学药剂法处理循环冷却水的国内工程实例的调查研究,对使用效果及影响因素进行了分析,并对工程应用设计进行了讨论。

关键词：循环冷却水阻垢缓蚀杀菌灭藻电化学电解磁场处理