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交流绕组设计过程的画分连三步曲
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作者 程小华 《防爆电机》 2025年第1期16-18,29,共4页
把交流绕组设计过程归纳为“画分连”三步曲(画图、分带、连端),表述精炼,便于操作,便于记忆。并提出了多匝线圈的等价画法。同时指出,设计交流绕组时,星形图不是必需的。
关键词 交流绕组设计 画分连三步曲 星形图 展开图 切割图 槽距电角 极相带
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利用Breath Figure法制备具有Honeycomb结构的有机/无机复合膜 被引量:6
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作者 申延明 吴静 +4 位作者 卢欣 唐杨军 刘丹 李长龙 李天舒 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2009年第7期1464-1468,共5页
以聚苯乙烯和正硅酸乙酯的有机溶液为铸膜溶液,利用Breath Figure法制备了PS/SiO2 Honeycomb结构复合膜.采用SEM对复合膜进行了形貌分析,探讨了聚合物浓度、PS/TEOS配比、聚合物的结构、溶剂等对膜Honeycomb结构的影响.研究结果表明,聚... 以聚苯乙烯和正硅酸乙酯的有机溶液为铸膜溶液,利用Breath Figure法制备了PS/SiO2 Honeycomb结构复合膜.采用SEM对复合膜进行了形貌分析,探讨了聚合物浓度、PS/TEOS配比、聚合物的结构、溶剂等对膜Honeycomb结构的影响.研究结果表明,聚合物浓度在20~50mg/mL,PS/TEOS质量比大于2∶1的条件下可以制备结构完整的多孔膜,且制备的Honeycomb结构在0.8cm2内无缺陷;采用双羧基封端的聚苯乙烯成膜效果好于单羧基封端的成膜效果;以氯仿和苯作为溶剂均可以制备完全Honeycomb结构的复合膜,但以苯为溶剂制备的多孔膜孔径较大.成膜中TEOS水解不完全,复合膜中混杂着未完全水解的TEOS以及SiO2.EDS面扫描分析表明,Si和O均匀地分散在复合膜中. 展开更多
关键词 BREATH figure 水辅助法 有序多孔膜 Honeycomb结构 有机/无机复合膜
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Breath Figure法制备聚碳酸酯(PC)蜂窝状多孔膜 被引量:3
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作者 刘瑞来 刘俊劭 刘海清 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2013年第3期133-136,共4页
以单组分聚碳酸酯(PC)为膜材质,在一定的湿度环境下,利用Breath Figure法在玻璃基板上成功制备了蜂窝状孔结构的聚碳酸酯多孔膜。研究了溶剂、溶液浓度和湿度对所成多孔膜结构和形貌的影响。实验结果表明,采用二氯甲烷为溶剂所制得的孔... 以单组分聚碳酸酯(PC)为膜材质,在一定的湿度环境下,利用Breath Figure法在玻璃基板上成功制备了蜂窝状孔结构的聚碳酸酯多孔膜。研究了溶剂、溶液浓度和湿度对所成多孔膜结构和形貌的影响。实验结果表明,采用二氯甲烷为溶剂所制得的孔结构规整,排列均匀紧密,孔径大小为(3.30±0.19)μm,而以三氯甲烷为溶剂只能得到孔径大小不均且无紧密排列的孔。环境湿度从43%增加到91%,孔径大小由(2.28±0.63)μm增加到(9.07±1.42)μm,且湿度与孔大小基本上呈现一阶线性关系,通过理论推导得出直线斜率为0.15μm/%,即在此体系中湿度每增加1%,所形成的孔大小增加0.15μm。 展开更多
关键词 聚碳酸酯 BREATH figure 蜂窝孔
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Lichtenberg Figures 技术的新应用 被引量:2
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作者 徐伟军 翁明 郑德修 《电工电能新技术》 CSCD 1999年第1期36-39,共4页
本文叙述了LichtenbergFigures(李庭博图)技术的新应用,即KirlianPho-tography(电晕放电成像)技术的基本原理。提出了影响成像清晰度的关键问题是外部电脉冲的宽度,并用纳秒脉冲放电技术获... 本文叙述了LichtenbergFigures(李庭博图)技术的新应用,即KirlianPho-tography(电晕放电成像)技术的基本原理。提出了影响成像清晰度的关键问题是外部电脉冲的宽度,并用纳秒脉冲放电技术获得了清晰的电晕像。同时就KirlianPho-tography的应用提出了一些看法。 展开更多
关键词 李庭博图 电晕放电 纳秒脉冲 放电 脉冲放电
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Cortical hem signaling center: functions, development, and potential implications for evolution and brain disorders
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作者 Victor V.Chizhikov Igor Y.Iskusnykh 《Neural Regeneration Research》 SCIE CAS 2025年第4期1079-1080,共2页
Development of the telencephalon relies upon several signaling centers-localized cellular populations that supply secreted factors to pattern the cortical neuroepithelium.One such signaling center is the cortical hem,... Development of the telencephalon relies upon several signaling centers-localized cellular populations that supply secreted factors to pattern the cortical neuroepithelium.One such signaling center is the cortical hem,which arises during embryonic development at the telencephalic dorsal midline,adjacent to the choroid plexus and hippocampal primordium(Figure 1A).While the cortical hem has also been described in reptiles and birds,most of our knowledge about the developmental roles of the cortical hem is derived from the analysis in mice.The cortical hem produces several types of secreted molecules,including wingless-related integration site(Wnt)and bone morphogenetic(Bmp)proteins.The cortical hem is particularly important for the development of the hippocampus,which is involved in learning and memory,and the neocortex,which is the most complex brain region that mediates multiple types of behavior and higher cognitive functions(Mangale et al.,2008;Dal-Valle-Anton and Borrell,2022). 展开更多
关键词 EPITHELIUM figure CENTER
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Regeneration mechanisms and therapeutic strategies for neuromuscular junctions in aging and diseases
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作者 Masashi Fujitani Abu Md Mamun Tarif Yoshinori Otani 《Neural Regeneration Research》 SCIE CAS 2025年第1期193-194,共2页
The neuromuscular junction(NMJ)is an essential synaptic structure composed of motor neurons,skeletal muscles,and glial cells that orchestrate the critical process of muscle contraction(Li et al.,2018).The typical NMJ ... The neuromuscular junction(NMJ)is an essential synaptic structure composed of motor neurons,skeletal muscles,and glial cells that orchestrate the critical process of muscle contraction(Li et al.,2018).The typical NMJ structure is classically described as having a“pretzel-like”shape in mice(Figure 1),whereas human NMJs have a smaller,fragmented structure throughout adulthood.Degenerated NMJs exhibit smaller or fragmented endplates,partial denervation,reduced numbers of synaptic vesicles,abnormal presynaptic mitochondria,and dysfunctional perisynaptic Schwann cells(Alhindi et al.,2022). 展开更多
关键词 AGING STRUCTURE figure
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Tilting homeostatic and dyshomeostatic microglial balance in health and disease:transforming growth factor-beta1 as a critical protagonist
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作者 Nicolas Hugues Yu Luo 《Neural Regeneration Research》 SCIE CAS 2025年第10期2895-2897,共3页
Adult microglia,by continuously sensing changes in their environment and communicating with nearly all brain cell types,are considered to be the immune sentinels of the brain.In the healthy central nervous system(CNS)... Adult microglia,by continuously sensing changes in their environment and communicating with nearly all brain cell types,are considered to be the immune sentinels of the brain.In the healthy central nervous system(CNS),microglia display a unique molecular homeostatic signature(i.e.,Tmem119,P2ry12,Sall1,Siglech,Gpr34,and Hexb)(Figure 1A). 展开更多
关键词 figure signature CRITICAL
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Retraction:The effects of exercise interventions on brain-derived neurotrophic factor levels in children and adolescents:a meta-analysis
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《Neural Regeneration Research》 SCIE CAS 2025年第11期3075-3075,共1页
At the request of the authors,Neural Regeneration Research is retracting the research article titled"The effects of exercise interventions on brain-derived neurotrophic factor levels in children and adolescents:a... At the request of the authors,Neural Regeneration Research is retracting the research article titled"The effects of exercise interventions on brain-derived neurotrophic factor levels in children and adolescents:a meta-analysis"(Shao et al.,2025;doi:10.4103/NRR.NRR-D-23-01296)due to erroneous data in Figure 4,which were produced during data extraction and synthesis.These erroneous analysis results lead to unreliable findings and misleading conclusions. 展开更多
关键词 SYNTHESIS figure REGENERATION
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Lactate is a potentially harmful substitute for brain glucose fuel:consequences for metabolic restoration of neurotransmission
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作者 Oliver Kann Lennart Soder Babak Khodaie 《Neural Regeneration Research》 SCIE CAS 2025年第5期1403-1404,共2页
The metabolite lactate (L-lactate) can be generated and released by diverse brain cells,including neurons,astrocytes,and oligodendrocytes (Kann,2023;Rae et al.,2024).Lactate production usually requires the degradation... The metabolite lactate (L-lactate) can be generated and released by diverse brain cells,including neurons,astrocytes,and oligodendrocytes (Kann,2023;Rae et al.,2024).Lactate production usually requires the degradation of glucose (D-glucose)-and glycogen in astrocytes-to pyruvate by glycolysis and subsequent conversion of pyruvate to lactate by the enzyme lactate dehydrogenase(Figure 1A;Dienel,2019;Rae et al.,2024). 展开更多
关键词 consequences figure RESTORATION
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Relationship Between Noise Figure and Equivalent Input Noise Current Spectral Density for Optical Receiver Design
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作者 孙玲 王志功 +1 位作者 景为平 高建军 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2006年第12期2085-2088,共4页
Based on the equivalent circuit model of a two-port optical receiver front-end,the relationship between the equivalent input noise current spectral density and the noise figure is analyzed. The derived relationship ha... Based on the equivalent circuit model of a two-port optical receiver front-end,the relationship between the equivalent input noise current spectral density and the noise figure is analyzed. The derived relationship has universal validity for determining the equivalent input noise current spectral density for optical receiver designs, as verified by measuring a 155Mb/s high-impedance optical receiver front.end. Good agreement between calculated and simulated results has been achieved. 展开更多
关键词 optical receiver noise figure equivalent input noise current
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Figure-9腔锁模全保偏掺铒光纤飞秒激光器 被引量:1
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作者 杨小亮 韦佳天 +2 位作者 吕宏伟 陈峰 刘志强 《光通信技术》 2023年第5期58-62,共5页
针对特殊应用领域对高可靠性、轻量化、输出功率大于100 mW、重频大于50 MHz的飞秒激光器的需求,设计了一种Figure-9腔锁模全保偏掺铒光纤飞秒激光器,通过在腔锁模振荡器中引入π/2相移偏置,降低了振荡器的自启动锁模阈值。实验结果表明... 针对特殊应用领域对高可靠性、轻量化、输出功率大于100 mW、重频大于50 MHz的飞秒激光器的需求,设计了一种Figure-9腔锁模全保偏掺铒光纤飞秒激光器,通过在腔锁模振荡器中引入π/2相移偏置,降低了振荡器的自启动锁模阈值。实验结果表明:当泵浦功率为130 mW时,振荡器可获得平均功率为12 mW、重频为85.89 MHz、脉冲宽度为249 fs的稳定锁模脉冲序列输出;采用一级正色后向泵浦散掺铒增益光纤放大器进行放大后,最终可获得平均功率为113 mW、脉冲宽度为107 fs的飞秒脉冲序列输出。 展开更多
关键词 保偏 figure-9腔 激光器 锁模 非线性放大光纤环
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汉语名词短语及存现句语序的“Ground-to-Figure”假说 被引量:1
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作者 郑晓行 《现代语文(下旬.语言研究)》 2015年第8期57-62,共6页
20世纪以来的汉语语序研究虽然取得了不少成果,但仍需要全面、系统和深入的研究。从"以运用为基础"的认知语言学研究范式来看,汉语句法结构通过概念隐喻在汉语使用者的日常空间思维的基础上生成,因此,汉语名词短语:"……... 20世纪以来的汉语语序研究虽然取得了不少成果,但仍需要全面、系统和深入的研究。从"以运用为基础"的认知语言学研究范式来看,汉语句法结构通过概念隐喻在汉语使用者的日常空间思维的基础上生成,因此,汉语名词短语:"……>名词整体(背景)>名词部分(图形)>……""……>名词大(背景)>名词小(图形)>……""……>名词空间/时间(背景)>名词对象(图形)>……"和存现句"……(NPloc/time)……(V)……(NP)……"等语序在汉语使用者的"Ground-to-Figure"的认知过程的基础上生成。在此基础上提出的汉语名词短语及存现句的"Ground-to-Figure"假说是一条汉语语序生成的重要机制,但不是唯一机制。 展开更多
关键词 汉语名词短语 存现句 语序 Ground—to—figure
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The figures of speech in Song of Solomon
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作者 张伟 《神州》 2014年第17期29-29,共1页
The Song of Solomon is a series of love poems which contain 6 pieces of love poems and most part in the form of songs addressed by a man to a woman, and by the woman to the man, in order to express the love between th... The Song of Solomon is a series of love poems which contain 6 pieces of love poems and most part in the form of songs addressed by a man to a woman, and by the woman to the man, in order to express the love between them.Figures of speech are ways of making our language figurative. They can be divided into three parts, they are syntactical, semantic and phonetic rhetorical devices. These rhetorical devices can help us to heighten effect and to make the writing figuratively and vividly.These figures of speech used in the Song of Solomon make great contribution to the success description of these long songs.This essay will center on the figures of speech in the Song of Solomon. 展开更多
关键词 SOLOMON RHETORICAL figureS PHONETIC SENTENCE semantic writing pieces PARALLELISM beauty
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Breath Figures法制备漆酚铜聚合物多孔膜 被引量:1
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作者 罗震 徐艳莲 林金火 《功能材料》 EI CAS CSCD 北大核心 2012年第1期69-72,共4页
以漆酚铜聚合物(UCP)有机溶液为铸膜液,采用Breath Figures法制备漆酚铜聚合物多孔膜,探讨了溶剂、环境相对湿度和潮湿气体流速等因素对多孔膜形貌的影响,并使用红外光谱和扫描电镜等进行表征。结果表明,以二硫化碳为溶剂,在静态(潮湿... 以漆酚铜聚合物(UCP)有机溶液为铸膜液,采用Breath Figures法制备漆酚铜聚合物多孔膜,探讨了溶剂、环境相对湿度和潮湿气体流速等因素对多孔膜形貌的影响,并使用红外光谱和扫描电镜等进行表征。结果表明,以二硫化碳为溶剂,在静态(潮湿气体流速为0mL/min,湿度为95%)或动态(潮湿气体流速为400mL/min,湿度为85%)时,均可制得孔分布均匀、孔型规整、优良耐热性和耐酸碱性的疏水性UCP多孔膜,其平均孔径分别为1.5和0.85μm。 展开更多
关键词 漆酚铜聚合物 多孔膜 BREATH figures法
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汉语名词短语左递归现象的“Ground-to-Figure”假说——兼论Hauser,Chomsky&Fitch的FLN假说
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作者 郑晓行 曹杰旺 《淮南师范学院学报》 2016年第1期81-87,共7页
Hauser,Chomsky&Fitch(2002)把"语言器官"区分为FLB和FLN,并假设FLN只包含递归性,(递归性)是人类语言器官独有且唯一的构成要素,它使人类语言可以对"有限的手段进行无限运用"。按照他们的观点,类似汉语名词短... Hauser,Chomsky&Fitch(2002)把"语言器官"区分为FLB和FLN,并假设FLN只包含递归性,(递归性)是人类语言器官独有且唯一的构成要素,它使人类语言可以对"有限的手段进行无限运用"。按照他们的观点,类似汉语名词短语左递归现象均由FLN的递归性生成,这种观点明显不符合汉语实际,也不符合汉语使用者的认知过程。从完形心理学的图形-背景认知原则来说,汉语使用者在认知过程中遵循从背景到图形的顺序,不断切换关注中心,而语言表达也遵循从背景到图形的顺序与之对应,形成了语言使用者对外部事物的完形认知与语言完形表达的异质同构,这就是汉语名词左递归现象的"Ground-to-Figure"假说。汉语名词左递归现象植根于汉语使用者的空间认知,这种语言思维与空间思维之间的同一性关系也得到Lakoff(1987)提出的形式空间化假设的有力的支持,而形式空间化假设又被神经生理学和生物学的研究成果的证实:人类空间思维与语言思维在人类大脑神经系统中由同类结构生成。诸如汉语名词左递归现象的语言递归现象并不是由所谓的FLN的递归性生成,递归性也不是区域限定性的而是区域通用性的,不为FLN独有。从这个意义上说,Hauser,Chomsky&Fitch(2002)的FLN假说是错误的。 展开更多
关键词 汉语名词短语左递归现象 'Ground-to-figure'假说 递归性 FLB FLN
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Breath Figure法制备漆酚铁聚合物微米图案的研究 被引量:1
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作者 金遥 彭嬖琛 +2 位作者 冯丽霞 罗震 徐艳莲 《中国生漆》 2012年第1期6-8,50,共4页
以漆酚铁聚合物(UFP)为基材,采用BreathFigure法制备UFP多孔膜和UFP微球。用扫描电镜观察其形貌,并研究(1)静态和动态的高湿环境下,浓度对UFP多孔膜形貌的影响;(2)聚合物浓度和温度等对UFP微球形貌的影响。结果表明,当环境湿度为85%、... 以漆酚铁聚合物(UFP)为基材,采用BreathFigure法制备UFP多孔膜和UFP微球。用扫描电镜观察其形貌,并研究(1)静态和动态的高湿环境下,浓度对UFP多孔膜形貌的影响;(2)聚合物浓度和温度等对UFP微球形貌的影响。结果表明,当环境湿度为85%、潮湿气体流速为400mL/min、聚合物浓度为50.0mg/mL,多孔膜的孔呈圆形且分布均匀。当UFP/二氯甲烷浓度为50.0mg/mL、气氛为甲醇及进样量为10.0μL时,所得的微球的形貌较好。在实验范围内,UFP溶液浓度越大,所制得的UFP多孔膜和微球的形貌越规整。 展开更多
关键词 漆酚铁聚合物 BREATH figure 多孔膜 微球
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Symbolic Images of Figures in The Red Badge of Courage
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作者 王晓俊 《海外英语》 2014年第3X期5-7,9,共4页
Crane’s most well-known work,The Red Badge of Courage,is commonly believed to be the first great novel of the American Civil War,largely because of its vivid and detailed description of the experience of warfare.This... Crane’s most well-known work,The Red Badge of Courage,is commonly believed to be the first great novel of the American Civil War,largely because of its vivid and detailed description of the experience of warfare.This paper conveys figure images symbolize that human life is insignificant in an indifferent universe in the novel,which are perfect symbolic images distinguish Crane as a forerunner of modernistic writers. 展开更多
关键词 CRANE The Red BADGE of COURAGE SYMBOLIC images FIG
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Chinese Liandong(Serial Verb) Constructions from the Perspective of Figure-Ground Relation
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作者 刘鹏 《海外英语》 2011年第1X期253-254,256,共3页
Empty categories,which lack phonological form and hence are not visible in the phonetic representation of the sentence,have both syntactic and semantic properties.Null subjects PRO and pro are base-generated empty cat... Empty categories,which lack phonological form and hence are not visible in the phonetic representation of the sentence,have both syntactic and semantic properties.Null subjects PRO and pro are base-generated empty categories.This thesis,based on Chomsky's theory about empty categories and research achievements made by Chinese scholars,attempts to analyze the liandong(Serial Verb) construction from Figure and Ground perspective. 展开更多
关键词 PRO Liandong(Serial) VERB construction figure-GROUND
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A high figure of merit localized surface plasmon sensor based on a gold nanograting on the top of a gold planar film 被引量:1
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作者 张祖银 王立娜 +3 位作者 胡海峰 李康文 马勋鹏 宋国峰 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第10期345-348,共4页
We investigate the sensitivity and figure of merit (FOM) of a localized surface plasmon (LSP) sensor with gold nanograting on the top of planar metallic film. The sensitivity of the localized surface plasmon senso... We investigate the sensitivity and figure of merit (FOM) of a localized surface plasmon (LSP) sensor with gold nanograting on the top of planar metallic film. The sensitivity of the localized surface plasmon sensor is 317 nm/RIU, and the FOM is predicted to be above 8, which is very high for a localized surface plasmon sensor. By employing the rigorous coupled-wave analysis (RCWA) method, we analyze the distribution of the magnetic field and find that the sensing property of our proposed system is attributed to the interactions between the localized surface plasmon around the gold nanostrips and the surface plasmon polarition on the surface of the gold planar metallic film. These findings are important for developing high FOM localized surface plasmon sensors. 展开更多
关键词 localized surface plasmon biosensor figure of merit nanogratings gold film
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Female Figures in Tragedy—The Comparison of Female Figures in Shakespeare's Macbeth and Polanski's Film Version of Macbeth 被引量:1
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作者 李珊珊 《英语广场(学术研究)》 2011年第Z4期29-30,36,共3页
莎士比亚的戏剧作品自问世以来就一直受到人们的极大追捧,《麦克白》作为四大悲剧之一,更是被不断地被演绎、研究。波兰斯基的电影《麦克白》重新展现了莎翁的名作,他在保留原作精华的同时,将自己对《麦克白》中女性人物的理解更深刻地... 莎士比亚的戏剧作品自问世以来就一直受到人们的极大追捧,《麦克白》作为四大悲剧之一,更是被不断地被演绎、研究。波兰斯基的电影《麦克白》重新展现了莎翁的名作,他在保留原作精华的同时,将自己对《麦克白》中女性人物的理解更深刻地表现出来了。本文拟通过麦克白夫人和女巫,来分析莎士比亚对剧本中女性人物的刻画,再将波兰斯基的影片与之对比,并结合波兰斯基生平,对其创作意图试做猜想。 展开更多
关键词 莎士比亚 波兰斯基 麦克白 女性人物
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