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Fabrication strategies of porous precious-metal-free bifunctional electrocatalysts for overall water splitting:Recent advances

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Green Energy & Environment 2021年第5期6卷 620-643页

作者： Jin-Tao Ren yali yao Zhong-Yong Yuan Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Institute of New Catalytic Materials ScienceSchool of Materials Science and EngineeringNankai UniversityTianjin300350China Institute for the Development of Energy for African Sustainability College of ScienceEngineering and TechnologyUniversity of South AfricaJohannesburgSouth Africa

Electrocatalytic water splitting using power generated from renewable energy to produce hydrogen has been considered as one of the more attractive approach to alleviate the problems of energy crisis and environmental *** of the biggest challenges for the large-scale application of water electrolysis is the searching of the low cost electrocatalysts with high and stable activity toward both hydrogen evolution reaction(HER)and oxygen evolution reaction(OER).The well-developed porous features of materials synthesized from the earth abundant elements endow them with the enhanced mass transfer and improved electronic interconnection during electrochemical reactions,resulting in the excellent electrocatalytic performance for both OER and ***,this review focuses on the recent development of innovation strategies for the fabrication of porous non-noble-metal materials including heteroatom-doped carbon-based and transition metal(mainly Co,Ni,and Fe)-based materials as efficient electrocatalysts for overall water ***,a detailed discussion of the structure–activity correlation gives an insight on the origin of the high electrocatalytic performance of porous materials obtained from different strategies,and provides guidance for future design and preparation of highly efficient electocatalysts based on non-precious carbon or metal materials for overall water splitting.

关键词： Electrocatalysis Porous materials Hydrogen evolution Oxygen evolution Overall water splitting

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Online and Offline Hybrid Teaching in the Luminescent Materials and Applications Course

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Journal of Contemporary Educational Research 2021年第6期5卷 51-56页

作者： Jie Li yali yao Qiang Guo College of Optoelectronic Engineering Chengdu University of Information TechnologyChengdu 610225Sichuan ProvinceChina School of Physical Education Chengdu Normal University Chengdu 611130Sichuan ProvinceChina

Due to the outbreak of |x-19,colleges and universities have actively responded to the call of the state to carry out online teaching in completing their teaching *** the epidemic,the online and offline hybrid teaching has become a novel mode of teaching which meets the requirements of teaching reform and the information *** teaching method integrates both the online and offline teaching which plays an important role in enhancing teaching qualities and learning ***,due to the lack of experience,there are some issues occurring in the teaching process of this *** Luminescent Materials and Applications course is used as the subject in this *** difficulties in traditional offline teaching as well as the advantages,detailed course construction process,and effectiveness evaluation of hybrid teaching are summarized and meticulously *** regard to that,the application of the online and offline hybrid teaching in the Luminescent Materials and Applications course is beneficial to the learning of professional knowledge and the cultivation of students'scientific ***,it is an effective way to improve and enrich this course by using the online and offline hybrid teaching method.

关键词： Online teaching Offline teaching Hybrid teaching Luminescent materials and applications

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Validation of Microbial Limit Test Methods of Tongmai Tangyanming Capsule

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Agricultural Biotechnology 2018年第1期7卷 104-108页

作者： Renhui YANG yali yao Xunrong ZHOU The Second Affiliated Hospital of Guiyang College of Traditional Chinese Medicine Guiyang 550003 China

[ Objectives] This study was conducted to establish a method for microbial limit test of Tongmai Tangyanming Capsule. [ Methods] According to the Chinese Pharmacopoei 2015 edition of the four general rules, the microbiological limits of non-sterile products were verified. [ Results] Tongmai Tangyanming Capsule has a strong inhibitory effect on Bacillus subtilis and Candida albicans. The antimicrobial activity was significantly eliminated after increasing the diluent （ 1 ： 20） ; and the recoveries were in the range of 0.5 -2 when the total quantities of aerobic microbes were determined by dilution method （1：20）. When the total quantities of mould and yeast were determined by dilution method （1：20）, the recoveries were from 0.5 to 2, and Escherichia coli, cholate-tolerant Gram-negative bacteria and Salmonella can be detected by the test solution dilution method. [ Condusions] With the plate method, the total quantities of aerobic bacteria and the quantities of mould and yeast were examined by increasing diluent, and conventional method was used for examination of control bacteria including E. coli, cholatetolerant Gram-negative bacteria and Salmonella. This method has been proved effective for microbial limit test of Tongmai Tangyanming Capsule, and can effectively control the quality of the preparation. The method is accurate and reliable.

关键词： Tongmai Tangyanming Capsule Microbial limit test method Dilution method

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Facile synthesis of Mo2C nanoparticles on N-doped carbon nanotubes with enhanced electrocatalytic activity for hydrogen evolution and oxygen reduction reactions

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Journal of Energy Chemistry 2019年第11期28卷 68-77页

作者： Yue-Jun Song Jin-Tao Ren Gege Yuan yali yao Xinying Liu Zhong-Yong Yuan Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) National Institute for Advanced MaterialsSchool of Materials Science and EngineeringNankai UniversityTianjin 300350China Material and Process Synthesis College of ScienceEngineering and TechnologyUniversity of South AfricaJohannesburgSouth Africa

Developing low-cost and highly-efficient electrocatalysts for renewable energy conversion technologies has attracted even-increasing attention. Molybdenum carbide materials have recently emerged as a type of promising catalysts for electrocatalytic reactions due to the earth-abundance and Pt-resembled electrical properties. In this work, taking the advantage of the interaction between the basic groups of the Mo(VI)-melamine polymer and the acidic groups on the surface of the oxidized carbon nanotubes(CNTs), N-doped CNTs supported Mo2C nanoparticles(Mo2C/NCNT) are prepared, which exhibit outstanding electrocatalytic activity and durability for both the hydrogen evolution and oxygen reduction reactions. The impressive performance of Mo2C/NCNT can be attributed to the small size of Mo2C particles, the large exposure ratio of surface sites and the presence of N-doped CNTs. This work enlarges the multi-field applications of molybdenum carbide-base materials as promising non-precious metal electrocatalysts, which is of great significance for sustainable energy-related technologies.

关键词： N-doping Carbon nanotubes Molybdenum carbides Hydrogen evolution reaction Oxygen reduction reaction Electrocatalysis

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Isolation and oral immunogenicity assessment of porcine epidemic diarrhea virus NH-TA2020 strain:One of the predominant strains circulating in China from 2017 to 2021

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Virologica Sinica 2022年第5期37卷 646-655页

作者： Xiaowen Li Yang Li Jiapei Huang yali yao Wenying Zhao Yunjing Zhang Jie Qing Jing Ren Zhong Yan Zewei Wang Xiaofang Hu Duli Kang Hongqiang Liu Zhichun Yan New Hope Liuhe Co. Ltd.Chengdu610041China National Research Center for Veterinary Medicine Luoyang471000China Shandong New Hope Liuhe Agriculture and Animal Husbandry Technology Co. Ltd.(NHLH Academy of Swine Research)Dezhou253034China Swine Health Data and Intelligent Monitoring Project Laboratory Dezhou UniversityDezhou253011China Pulike Biological Engineering Inc. Luoyang471000China

Porcine epidemic diarrhea(PED)caused by porcine epidemic diarrhea virus(PEDV)is one of the most devastating diseases in the global pig industry due to its high mortality rate in *** vaccines can effectively enhance the gut-mammary gland-secretory IgA axis to boost lactogenic immunity and passive protection of nursing piglets against PEDV *** 2017 to 2021,we collected 882 diarrhea samples from 303 farms in China to investigate the epidemiology of *** result showed that about 52.15%(158/303)of the farms were positive for PEDV with an overall detection rate of 63.95%(564/882)of the *** S1 fragments of S gene from 104 strains were sequenced for the phylogenetic analysis.A total of 71 PEDV strains(68.27%)sequenced in this study were clustered into the predominant G2c subgroup,while the newly-defined G2d strains(9.62%)were identified in three provinces of *** NH-TA2020 strain of G2c subgroup was isolated and cultured,and its infection to piglets caused watery diarrhea within 24 h,indicating its strong *** administration of NH-TA2020 strain to pregnant gilts stimulated high levels of IgA antibody in *** piglets fed by the gilts above were challenged with NH-TA2020 strain or CH-HeB-RY-2020 strain from G2d subgroup,and the clinical symptoms and virus shedding were significantly reduced compared to the mock *** findings suggest that G2c subgroup is the predominant branch circulating in China from 2017 to *** administration of NH-TA2020 enhances maternal IgA and lactogenic immune responses,which confer protection against the homologous and emerging G2d PEDV strains challenges in neonates.

关键词： Porcine epidemic diarrhea virus(PEDV) Molecular epidemiological investigation Virus isolation Lactogenic immune IgA

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高可靠低功耗Ka频段星载有源相控阵冗余备份技术

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电讯技术 2021年第1期61卷 36-41页

作者：姚亚利中国西南电子技术研究所成都610036

与传统的星载平台大多用开关来备份高失效率的微波通道模块不同,提出以无源器件来替代开关进行冗余备份的方法,将电桥集成于原有的波束形成网络,对Ka频段星载有源相控阵中的变频模块进行冷备份。设计并研制了集成电桥的波束形成网络,在2... 详细信息

与传统的星载平台大多用开关来备份高失效率的微波通道模块不同,提出以无源器件来替代开关进行冗余备份的方法,将电桥集成于原有的波束形成网络,对Ka频段星载有源相控阵中的变频模块进行冷备份。设计并研制了集成电桥的波束形成网络,在23.5~25 GHz工作频段内,该网络的测试驻波比小于1.8,均方根幅度一致性小于0.4 dB,均方根相位一致性小于4.8°,插入损耗小于2.6 dB。相比使用开关等有源器件,这是一种更简单、高可靠、低功耗的冗余备份技术,非常适用于星载有源相控阵。

关键词：星载有源相控阵 Ka频段冗余备份波束形成网络

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The Control System of ECRH HV Power Supply

Southwestern Institute of Physics Annual Report

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Southwestern Institute of Physics Annual Report 2005年第1期 74-76页

作者： MAO Xiaohui LI Qing WANG yali yao Lieying XUAN Weimin SHAO Kui

In order to satisfy the requirement of ECRH for power supply, pulse high voltage （ HV ） power supply has been developed. The main parameters of the power are： output voltage -55 kV, output current 25 -2 A, stability ±0.5%, pulse duration 1 s, the leading edge and lagging edge of the pulse is about 40 μs and so on. On the other hand, the system should have preferable protective capability. In this paper, the hardware and principle of the power supply, hardware, software and arithmetic method of the control system are presented.

关键词： ECRH High-voltage power supply Control system

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水稻秧盘育秧播种技术与装备的研究现状及发展趋势

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农业工程学报 2008年第4期24卷 301-306页

作者：周海波马旭姚亚利吉林大学生物与农业工程学院佳木斯大学机械工程学院佳木斯154007 华南农业大学南方农业机械与装备关键技术省部共建教育部重点实验室大庆油田龙丰实业公司

该文在收集、整理并研究国内外关于水稻秧盘育秧播种技术与装备的基础上,按照播种流水线的结构特点和工作原理进行分析归纳,系统地总结了每一类机型的研究现状,详细分析了播种、排土和秧盘同步传动等技术难点,以及主要部件采用的工作原... 详细信息

该文在收集、整理并研究国内外关于水稻秧盘育秧播种技术与装备的基础上,按照播种流水线的结构特点和工作原理进行分析归纳,系统地总结了每一类机型的研究现状,详细分析了播种、排土和秧盘同步传动等技术难点,以及主要部件采用的工作原理、技术参数和所能达到的性能指标,通过对现有机型特点的分析比较,给出了各类机型的适用范围。最后,根据水稻插、抛秧种植的农艺要求,尤其是中国超级杂交稻种植技术的要求,提出适合于超级杂交稻精密播种的新型育秧系统,上述研究为适用于中国传统水稻育秧,以及发展中的超级杂交稻低成本高速精准秧盘育秧播种技术研究提供参考。

关键词：水稻育秧播种精密播种秧盘育秧超级杂交稻

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亲子关系对婴幼儿情绪的影响研究

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和田师范专科学校学报 2022年第1期41卷 56-60,45页

作者：姚雅丽成都师范学院四川成都611130

婴幼儿早期的社会情绪能力对其日后人际关系处理、生活学习交往、情绪行为控制、问题沟通解决等方面具有重要影响。因此,重视婴幼儿情绪发展的萌芽阶段,加强对婴幼儿早期社会性发展的研究,分析亲子关系与婴幼儿情绪发展的相关性,提出和... 详细信息

婴幼儿早期的社会情绪能力对其日后人际关系处理、生活学习交往、情绪行为控制、问题沟通解决等方面具有重要影响。因此,重视婴幼儿情绪发展的萌芽阶段,加强对婴幼儿早期社会性发展的研究,分析亲子关系与婴幼儿情绪发展的相关性,提出和谐亲子关系构建的模式,对婴幼儿培养良好情绪性格具有重要影响。

关键词：婴幼儿亲子关系情绪性格

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减摩抗磨类新型润滑油添加剂的研究进展

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化工进展 2016年第7期35卷 2156-2165页

作者：屈孟男姚亚丽何金梅冯娟刘珊珊西安科技大学化学与化工学院陕西西安710054

减摩抗磨类润滑油添加剂能提高基础润滑油的摩擦学性能使其在润滑领域具有广阔的应用前景,但是商用润滑油添加剂大多含有P、S等有害元素,因此,寻找更加环保、经济的润滑油添加剂具有重要意义。本文根据润滑油添加剂结构种类和润滑机理... 详细信息

减摩抗磨类润滑油添加剂能提高基础润滑油的摩擦学性能使其在润滑领域具有广阔的应用前景,但是商用润滑油添加剂大多含有P、S等有害元素,因此,寻找更加环保、经济的润滑油添加剂具有重要意义。本文根据润滑油添加剂结构种类和润滑机理的不同,以及国内外各种润滑油添加剂在润滑方面的相关成果,综述了近年来纳米颗粒(纳米单质及其复合颗粒、纳米氧化物、纳米硫化物、纳米氮化物)、含氮杂环化合物及其衍生物、硼酸酯及其衍生物、离子液体等添加剂的合成方法以及在减摩抗磨方面的应用,并对其发展状况和减摩抗磨机理进行了探究。指出了其润滑机理主要为吸附膜机理、摩擦反应膜机理和滚珠机理。最后对其存在的问题进行分析,提出了当前润滑领域研究的热点和方向依然是复合添加剂的制备和机理探究。

关键词：润滑油添加剂纳米颗粒含氮杂环化合物离子液体减摩抗磨

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