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中国青年研究 2007年第6期 30-33页

作者：刘立祥解放军西安通信学院政教室

机会成本原理对于青年成长成才具有重要意义。正确把握机会成本关键要做到:珍惜成本,切莫虚掷;培育成本,积淀素质;运筹成本,精打细算;投入成本,把握机遇。

关键词：机会成本青年成才

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一种新型铸造流槽装置

轻金属 2013年第4期 49-50页

作者：刘立翔中国铝业股份有限公司兰州分公司甘肃兰州730060

介绍了一种新型铸造流槽装置,详细论述了"U"型沉渣箱和定流装置的结构及功能特点,该铝电解新型铸造流槽装置与现有装置相比,有效的减少了铝锭块的含渣量,降低了铝液的损耗,解决了铝锭块大小不均匀的问题,不仅降低了企业的生产成本,而且... 详细信息

介绍了一种新型铸造流槽装置,详细论述了"U"型沉渣箱和定流装置的结构及功能特点,该铝电解新型铸造流槽装置与现有装置相比,有效的减少了铝锭块的含渣量,降低了铝液的损耗,解决了铝锭块大小不均匀的问题,不仅降低了企业的生产成本,而且提高了铝锭产品的外观质量。

关键词： "U"型沉渣箱定流装置外观质量

当前我国幼儿园教育质量评价工作的误区及调整策略

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学前教育研究 2006年第7期 85-87页

作者：刘丽湘北京师范大学教育学院北京100875

本文针对《幼儿园教育指导纲要(试行)》颁发后各地需要重新调整分级分类验收标准的形势,分析研究了验收过程中存在的基本问题,如:评价内容及标准自身的缺陷,评价中缺乏对“硬件”使用效率的关注,评价方式缺乏量与质的统整,评价主体单一... 详细信息

本文针对《幼儿园教育指导纲要(试行)》颁发后各地需要重新调整分级分类验收标准的形势,分析研究了验收过程中存在的基本问题,如:评价内容及标准自身的缺陷,评价中缺乏对“硬件”使用效率的关注,评价方式缺乏量与质的统整,评价主体单一化,评价的信度效度缺乏监控等问题,并在分析的基础上,提出了相应的调整建议与策略。

关键词：评价学前教育质量问题对策

Macroscopic assembled graphene nanofilms based room temperature ultrafast mid-infrared photodetectors

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InfoMat 2022年第6期4卷 129-140页

作者： Li Peng lixiang liu Sichao Du Srikrishna Chanakya Bodepudi Lingfei Li Wei liu Runchen Lai Xiaoxue Cao Wenzhang Fang Yingjun liu Xinyu liu Jianhang Lv Muhammad Abid Junxue liu Shengye Jin Kaifeng Wu Miao-Ling Lin Xin Cong Ping-Heng Tan Haiming Zhu Qihua Xiong Xiaomu Wang Weida Hu Xiangfeng Duan Bin Yu Zhen Xu Yang Xu Chao Gao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringInternational Research Center for X PolymersZhejiang UniversityHangzhouChina School of Micro-nanoelectronics State Key Laboratory of Silicon MaterialsHangzhou Global Scientific and Technological Innovation CenterZJU-UIUC Joint InstituteZhejiang UniversityHangzhouChina State Key Laboratory of Molecular Reaction Dynamics and Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijingChina Department of Chemistry Zhejiang UniversityHangzhouChina Division of Physics and Applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingaporeSingapore National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructureSchool of Electronic Science and EngineeringNanjing UniversityNanjingChina State Key Laboratory of Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghaiChina Department of Chemistry and Biochemistry California Nanosystems InstituteUniversity of CaliforniaLos AngelesCaliforniaUSA

Graphene with linear energy dispersion and weak electron-phonon interaction is highly anticipated to harvest hot electrons in a broad wavelength ***,the limited absorption and serious backscattering of hot-electrons result in inadequate quantum yields,especially in the mid-infrared ***,we report a macroscopic assembled graphene(nMAG)nanofilm/silicon heterojunction for ultrafast mid-infrared *** assembled Schottky diode works in 1.5-4.0μm at room temperature with fast response(20-30 ns,rising time,4 mm2 window)and high detectivity(1.61011 to 1.9109 Jones from 1.5 to 4.0μm)under the pulsed laser,outperforming single-layer-graphene/silicon photodetectors by 2-8 *** performances are attributed to the greatly enhanced photo-thermionic effect of electrons in nMAG due to its high light absorption(~40%),long carrier relaxation time(~20 ps),low work function(4.52 eV),and suppressed carrier number *** nMAG provides a long-range platform to understand the hot-carrier dynamics in bulk 2D materials,leading to broadband and ultrafast MIR active imaging devices at room temperature.

关键词： graphene nanofilm heterojunction macro-assembly mid-infrared photodetector photothermionic effect

Genetic mutation of Tas2r104/Tas2r105/Tas2r114 cluster leads to a loss of taste perception to denatonium benzoate and cucurbitacin B

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Animal Models and Experimental Medicine 2024年第3期7卷 324-336页

作者： Bowen Niu Lingling liu Qian Gao Meng-Min Zhu lixiang Chen Xiu-Hua Peng Boying Qin Xiaohui Zhou Feng Li Department of Laboratory Animal Science Shanghai Public Health Clinical CenterFudan UniversityShanghaiChina Department of Biology College of Life SciencesShanghai Normal UniversityShanghaiPeople's Republic of China

Background:Bitter taste receptors(Tas2rs)are generally considered to sense various bitter compounds to escape the intake of toxic *** taste receptors have been found to widely express in extraoral tissues and have important physiological functions outside the gustatory system in ***:To investigate the physiological functions of the bitter taste receptor cluster Tas2r106/Tas2r104/Tas2r105/Tas2r114 in lingual and extraoral tissues,multiple Tas2rs mutant mice and Gnat3 were produced using CRISPR/Cas9 gene-editing technique.A mixture containing Cas9 and sgRNA mRNAs for Tas2rs and Gnat3 gene was microinjected into the cytoplasm of the ***,T7EN1 assays and sequencing were used to screen genetic mutation at the target sites in founder *** real-time polymerase chain reaction(qRT-PCR)and immunostaining were used to study the expression level of taste signaling cascade and bitter taste receptor in taste *** to taste substance was also studied using twobottle preference ***:We successfully produced several Tas2rs and Gnat3 mutant mice using the CRISPR/Cas9 *** results showed that the expression of GNAT3 and PLCB2 was not altered in Tas2rs mutant *** qRT-PCR results revealed the changed expression profile of m Tas2rs gene in taste buds of these mutant *** two-bottle preference tests,these mutant mice eliminate responses to cycloheximide due to genetic mutation of *** addition,these mutant mice showed a loss of taste perception to quinine dihydrochloride,denatonium benzoate,and cucurbitacin B(CuB).Gnat3-mediated taste receptor and its signal pathway contribute to CuB ***:These findings implied that these mutant mice would be a valuable means to understand the biological functions of TAS2Rs in extraoral tissues and investigate bitter compound-induced responses mediated by these TAS2Rs in many extraoral tissues.

关键词： bitter taste receptor CRISPR/Cas9 genetic mutation two-bottle preference test type 2 taste receptors(Tas2rs)

研究幼儿园教育改革成效,深化幼儿园教育改革

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学前教育研究 2008年第11期 3-6页

作者：刘焱刘丽湘北京师范大学教育学院北京100875 北京师范大学经济与工商管理学院北京100875

以《幼儿园工作规程》的颁布为标志,我国幼儿园教育改革作为一场自上而下的改革运动至今已走过了十年的历程。关于这场改革成效的研究应当成为我国当前幼儿教育研究的重要课题,以为我国幼儿教育政策决策服务。但目前已有研究基本上建立... 详细信息

以《幼儿园工作规程》的颁布为标志,我国幼儿园教育改革作为一场自上而下的改革运动至今已走过了十年的历程。关于这场改革成效的研究应当成为我国当前幼儿教育研究的重要课题,以为我国幼儿教育政策决策服务。但目前已有研究基本上建立在主观判断或现状描述的基础之上,缺乏实证依据的支持。开展幼儿园教育改革成效研究应当抓住影响改革成效的关键阶段与关键问题,采用定性、定量相结合的实证性研究方法,从多个角度客观、公正、全面地分析和评价我国幼儿园教育改革的成效。

关键词：教育改革幼儿园教育改革改革成效

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重视抓好政治理论课教学中的细节

军队政工理论研究 2006年第2期7卷 84-86页

作者：刘立祥西安通信学院陕西西安710106

提高政治理论课教学质量要重视抓细节。抓细节就是抓质量;抓细节必须贯穿始终。从教学各环节、各要素努力拓展细节的空间,对备课、课堂讲授艺术、教学语言和姿态、教学对象的每一个细节都慎重对待,一以贯之地精心打造好每一个细节。

关键词：政治理论课教学细节

幼儿园教育改革政策落实过程中的误区透析——从文本传递质量看改革成效

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学前教育研究 2008年第12期 7-10页

作者：刘丽湘刘焱北京师范大学经济与工商管理学院北京100875 北京师范大学教育学院北京100875

本文针对我国幼儿园教育改革需要深化与发展的形势,分析了我国幼儿园教育改革政策落实过程中文本传递的质量,提出了分析幼儿园教育改革文本传递过程的内容分析框架,并透析了当前幼儿园教育改革在文本传递上的特点与误区,进而提出了教育... 详细信息

本文针对我国幼儿园教育改革需要深化与发展的形势,分析了我国幼儿园教育改革政策落实过程中文本传递的质量,提出了分析幼儿园教育改革文本传递过程的内容分析框架,并透析了当前幼儿园教育改革在文本传递上的特点与误区,进而提出了教育改革成效的监控重点。

关键词：教育改革传递政策文本

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另一种视角看冒险

中国青年研究 2009年第9期 95-97页

作者：刘立祥解放军西安通信学院政教室

从创新思维的视角来看,冒险本身就意味着创新;从把握机遇的视角来看,冒险是捕俘机遇的首要前提;从理想追求的视角来看,冒险是点燃理想的火种。另一种视角看冒险,会有别样的一种境界。

关键词：冒险创新机遇理想

Transmission Technique towards Seamless Handover for NGEO Satellite Networks

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China Communications 2011年第5期8卷 88-95页

作者：王路刘立祥胡晓惠 Science and Technology on Integrated Information System Laboratory Institute of SoftwareChinese Academy of Sciences Graduate University of Chinese Academy of Sciences

This paper presents a seamless transmission technique for Non-Geostationary Earth Orbit(NGEO) satellite *** seamless transmission technique combines the concept of Hop-by-Hop and network coding to alleviate the negative impacts of handovers,high bit error rate,and long delay,and to achieve high throughput and complete delivery in NGEO satellite *** network coding algorithm is able to maintain expected small queue size and low decoding ***,the seamless transmission technique applies a novel explicit congestion notification mechanism and can achieve high bandwidth *** aspects of this seamless transmission technique are evaluated.

关键词： NGEO satellite networks seamless network coding Hop-by-Hop