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Nuclear Science and Techniques 2007年第5期18卷 298-301页

作者： WU Yuelei HU Huasi qin Juan WANG Xiaolian ZHENG xiangyang XU Zizong Nuclear Engineering Department School of Energy and Power Engineering Xi＇ an Jiaotong University Xi＇an 710049 China Department of Modern Physics University of Science ＆ Technology of China Hefei 230026 China

The gas magnification of multi-gap resistive plate chamber (MRPC) is very difficult to be measured using the present instruments thoroughly in the world. The gas magnifications about ~107 were obtained in the various operation-high-voltages of multi-gap resistive plate chamber (MRPC) by means of Monte-Carlo simulation and the presented experiment method.

关键词：放大倍数模拟实验探测器探测方法

基于“虚实结合”的教学模式在医用有机化学教学中的应用研究

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中国医药科学 2023年第16期13卷 60-63,77页

作者：何炜王海波李明华秦向阳张俊娜冀楠解放军空军军医大学药学系化学制药学教研室陕西西安710032

《医用有机化学》是在我国医科院校中普遍开设的一门公共基础课程,知识体系庞杂。将“虚实结合”的教学模式融入到教学中,可以对有限的课堂时间进行扩容,并通过微课录制的方式将重难点、三维动画机制及虚拟仿真实验呈现给学生,对于学生... 详细信息

《医用有机化学》是在我国医科院校中普遍开设的一门公共基础课程,知识体系庞杂。将“虚实结合”的教学模式融入到教学中,可以对有限的课堂时间进行扩容,并通过微课录制的方式将重难点、三维动画机制及虚拟仿真实验呈现给学生,对于学生复习和知识归纳起到积极的作用,与课堂教学相辅相成。问卷调查显示,“虚实结合”的教学模式对于推动知识内化起到了很好的作用,达到了提高教学效果的目的。

关键词：医用有机化学虚实结合教学模式三维动画虚拟仿真实验

定量化分析支持下全国耕作制度区划方法预研究

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中国农学通报 2013年第5期29卷 86-91页

作者：陆洲秦向阳李奇峰刘丽红淮贺举臧辰龙北京农业信息技术研究中心北京100097 山东农业大学山东泰安271018

为了探讨定量化分析手段在全国耕作制度区划中的应用方法,通过对耕作制度区划指标逐项探讨、对现有的耕作制度分区进行了调整试验的方式,研究了全国耕作制度分区的指标体系,以及"区划指标数据库建立"、"气候指标值提取"、"地形单元提取"... 详细信息

为了探讨定量化分析手段在全国耕作制度区划中的应用方法,通过对耕作制度区划指标逐项探讨、对现有的耕作制度分区进行了调整试验的方式,研究了全国耕作制度分区的指标体系,以及"区划指标数据库建立"、"气候指标值提取"、"地形单元提取"、"低级单元聚类"等定量化方法在耕作制度分区中的应用。结果表明:(1)明确的多级指标体系是定量化区划的关键;(2)耕作制度区划中使用定量化方法的技术框架是"自上而下"与"自下而上"相结合,在不同层级上采用不同的定量化分析方法;(3)在专家集成定性分析的框架下,定量化方法可以有效地提高耕作制区划的准确性与合理性。

关键词：耕作制度区划定量化分析

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农业专家系统开发平台的研究现状及发展趋势

中国农学通报 2006年第6期22卷 436-440页

作者：孙妮娜秦向阳杨宝祝杨信廷陈雨海国家农业信息化工程技术研究中心山东农业大学农学院山东泰安271018 山东农业大学农学院

在中国,特殊的国情造成农业专家一般对计算机及其相关技术十分陌生,知识工程师对于农业知识知之更少,使得开发农业专家系统十分困难。专家系统开发平台的出现,使这个问题得到了缓解。农业专家无需掌握过多的编程知识就能建造性能良好的... 详细信息

在中国,特殊的国情造成农业专家一般对计算机及其相关技术十分陌生,知识工程师对于农业知识知之更少,使得开发农业专家系统十分困难。专家系统开发平台的出现,使这个问题得到了缓解。农业专家无需掌握过多的编程知识就能建造性能良好的专家系统,而知识工程师只需研制开发平台,并根据领域使用要求,修改完善平台,无需掌握领域知识,两者相得益彰。在此,综述了近几十年国内外农业专家系统开发平台的研究及应用现状,提出了存在的问题,并介绍了农业专家系统开发平台的发展趋势,为农业专家系统开发平台在中国农业信息化中更好地服务提供参考依据。

关键词：农业专家系统开发平台现状趋势

以抗疟疾药物青蒿素的提取与纯化为例的虚拟仿真实验在化学实验教学中的探索与应用

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中国医药科学 2023年第2期13卷 71-74页

作者：李明华兰婷冀楠秦向阳张俊娜田秦秦王海波何炜空军军医大学药学系化学制药学教研室陕西西安710032

虚拟仿真实验的建设是当下实验教学发展的趋势,有机化学实验从教学与实际应用的角度出发,将虚拟仿真融入到真实的实验教学中,使信息技术的作用得到充分的发挥。本文介绍了有机化学实验课程中抗疟疾药物青蒿素的提取与纯化,基于现实的有... 详细信息

虚拟仿真实验的建设是当下实验教学发展的趋势,有机化学实验从教学与实际应用的角度出发,将虚拟仿真融入到真实的实验教学中,使信息技术的作用得到充分的发挥。本文介绍了有机化学实验课程中抗疟疾药物青蒿素的提取与纯化,基于现实的有机化学中天然产物的提取与纯化实验项目的开展,对虚拟实验进行思路设计、流程优化,最终在客户端对学生开放,与课堂教学相辅相成。通过问卷调查,虚拟实验可以有效地激发学生的学习热情,提升学生学习的主动性,切实提高实验课程的教学质量。

关键词：虚拟仿真实验青蒿素实验教学教学效果问卷调查

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Graphene-supported biomimetic catalysts with synergistic effect of adsorption and degradation for efficient dye capture and removal

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Chinese Chemical Letters 2020年第1期31卷 239-243页

作者： qin Li Xiaopei Wang Xueqing Xiong Shuihong Zhu Zhaohui Meng Yongying Hong Changxu Lin xiangyang Liu Youhui Lin Research Institute for Biomimetics and Soft Matter Department of PhysicsFujian Provincial Key Laboratory for Soft Functional Materials ResearchXiamen UniversityXiamen 361005China Department of Physics National University of SingaporeSingapore 117542Singapore

Design and development of iron porphyrin-based artificial enzymes system have been attracting a lot of ***,without any toxic reductant and harsh processing,we present a facile one-pot method to fabricate bifunctional catalytic nanocomposites consisting of graphene and hemin by using vitamin C as a mild reduction *** presence of graphene helps the formation of a high degree of highly active and stable hemin on the graphene surface in a monomeric form through theirπ-πstacking *** a result,such nanocomposites possess a superior adsorption capacity and intrinsic peroxidase-like catalytic ***,by the combination of their dye adsorption ability,RGOhemin nanocomposites can serve as a suitable candidate for efficient capture and removal of dyes via a synergistic *** findings may pave the way to apply graphene-supported artificial enzymes in a variety of fields,such as environmental chemistry,bionics,medicine,and biotechnology.

关键词： Nanozymes Pollutant removal Solid matrix Supported catalyst Synergistic effect

Preliminary study on climatic signals of stable isotopes from Holocene speleothems under monsoon condition

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Chinese Science Bulletin 1998年第6期43卷 506-509页

作者： Ming Tan Dongsheng Liu Hua Zhong Xiaoguang qin Hongchun Li Shusen Zhao Tieying Li Jinbo Lu xiangyang Lu Chinese Acad Sci Inst Geol Beijing 100029 Peoples R China Univ So Calif Dept Earth Sci Los Angeles CA USA Inst Geol Survey Beijing Beijing 102206 Peoples R China Peking Univ Tech & Phys Dept Beijing 100871 Peoples R China

Within the East Asian monsoon zone the change in oxygen isotope of Holocene stalagmite is mainly related to monsoon rain rather than to temperature. And carbon isotope can be taken as a comprehensive signal which contains the natural information and the information of anthropogenic activity. Isotopic analysis is also compared with the annual layer records.

关键词： speleothem stable isotopes monsoon.

Charge state modulation on boron site by carbon and nitrogen localized bonding microenvironment for two-electron electrocatalytic H_(2)O_(2)production

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Chinese Chemical Letters 2023年第5期34卷 598-603页

作者： Tingting Zhang Yin Wang xiangyang Li Quan Zhuang Zixuan Zhang Hong Zhou qin Ding Yingqi Wang Yuxin Dang Limei Duan Jinghai Liu Inner Mongolia Key Laboratory of Carbon Nanomaterials College of Chemistry and Materials ScienceNano Innovation InstituteInner Mongolia Minzu UniversityTongliao 028000China Tongliao Center for Disease Control and Prevention Tongliao 028000China

Design of electrochemical active boron(B)site at solid materials to understand the relationships between the localized structure,charge state at the B site and electrocatalytic activity plays a crucial role in boosting the green electrochemical synthesis of hydrogen peroxide(H_(2)O_(2))via two-electron oxygen reduction(2eORR)***,we demonstrate a carbon(C)and nitrogen(N)localized bonding microenvironment to modulate the charge state of B site at the boron-carbon nitride solid(BCNs)to realize the efficient selective electrocatalytic H_(2)O_(2)*** localized chemical structure of N-B-N,N-B-C and C-B-C bonds at B site can be regulated through solid-state reaction between boron nitride(BN)and porous carbon(C)at variable *** optimized BCN-1100 achieves an outstanding H_(2)O_(2)selectivity of 89%and electron transfer number of 2.2(at 0.55 V ***),with the production of 10.55mmol/L during 2.5 h and the catalytic stability duration for 15000 *** first-principles calculations identified the dependency of localized bonding microenvironment on the OOH~*adsorption energies and relevant charge states at the boron *** localized structure of B site with BNC_(2)-Gr configuration is predicted to be the highest 2eORR activity.

关键词： Solid boron site Charge state modulation Localized bonding microenvironment Two-electron oxygen reduction H_(2)O_(2)electrosynthesis

Research progress of electronic nose technology in exhaled breath disease analysis

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Microsystems & Nanoengineering 2023年第5期9卷 35-56页

作者： Ying Li xiangyang Wei Yumeng Zhou Jing Wang Rui You School of Instrument Science and Opto-Electronics Engineering Beijing Information Science and Technology UniversityBeijing 100192China Laboratory of Intelligent Microsystems Beijing Information Science and Technology UniversityBeijing 100192China School of Electronics and Information Engineering Changchun University of Science and TechnologyChangchun 130022China

Exhaled breath analysis has attracted considerable attention as a noninvasive and portable health diagnosis method due to numerous advantages,such as convenience,safety,simplicity,and avoidance of *** on many studies,exhaled breath analysis is a promising medical detection technology capable of diagnosing different diseases by analyzing the concentration,type and other characteristics of specific *** the existing gas analysis technology,the electronic nose(eNose)analysis method has great advantages of high sensitivity,rapid response,real-time monitoring,ease of use and ***,this review is intended to provide an overview of the application of human exhaled breath components in disease diagnosis,existing breath testing technologies and the development and research status of electronic nose *** the electronic nose technology section,the three aspects of sensors,algorithms and existing systems are summarized in ***,the related challenges and limitations involved in the abovementioned technologies are also ***,the conclusion and perspective of eNose technology are presented.

关键词： diagnosis analysis simplicity