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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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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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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:2
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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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Different Frequency Synchronization Theory and Its Frequency Measurement Practice Teaching Innovation Based on Lissajous Figure Method 被引量:1
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作者 Xin Geng Songlin Li +2 位作者 Guangming Huang Baoqiang Du Jianhua Chen 《Journal of Beijing Institute of Technology》 EI CAS 2018年第2期198-205,共8页
According to the requirement of multi-parameter time and frequency measurement without frequency normalization,a different frequency synchronization theory is proposed based on Lissajous figure method and the variatio... According to the requirement of multi-parameter time and frequency measurement without frequency normalization,a different frequency synchronization theory is proposed based on Lissajous figure method and the variation lawof Lissajous figure which are used in practice teaching of frequency measurement. The theory can achieve high-precision transmission and comparison of time and frequency and precise locking and tracking of phase and frequency,improve the level of scientific research on time and frequency for postgraduate,and promote practice teaching innovation of time frequency measurement for undergraduate. Utilizing the ratio of horizontal and vertical inflection point of the Lissajous figure,the nominal frequency of the measured signal is precisely calculated.The frequency deviation between the measured frequency and its nominal frequency can be obtained by combining the turning cycle of the Lissajous figure. By observing the phase relationship between the frequency standard signal and the measured signal,the accurate measurement of the frequency is implemented. Experimental results showthat the direct measurement and comparison better than the 10-11 order of magnitude with common frequency source can be finished between any signal frequencies.The frequency measurement method based on the theory has the advantage of simple operation,quick measurement speed,small error,lownoise and high measurement precision. It plays an important role in time synchronization,communications,metrology,scientific research,educational technology practice and equipment and other fields. 展开更多
关键词 Lissajous figure different frequency synchronization frequency measurement
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The Translation of Figures in Interpretation
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作者 杨莹 《海外英语》 2011年第12X期209-211,共3页
Figure has always been a "bottleneck" of high-quality interpretation. This paper attempts a theoretical analysis of the main causes of the bottleneck and discusses the skill of interpreting figures. It also ... Figure has always been a "bottleneck" of high-quality interpretation. This paper attempts a theoretical analysis of the main causes of the bottleneck and discusses the skill of interpreting figures. It also sums up intensively various forms related to interpreting figures for interpreters to achieve a high-quality interpretation. 展开更多
关键词 INTERPRETATION figure SKILLS of INTERPRETING figureS
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The Employment of Figures of Speech in English Advertisement
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作者 徐彩霞 《海外英语》 2012年第5X期264-265,共2页
Figure of speech is a fixed language expression formed on the basis of phonology,vocabulary and grammar.With its brief flexi ble approach,It not only displays rich and colorful details,deep and complicated emotions,bu... Figure of speech is a fixed language expression formed on the basis of phonology,vocabulary and grammar.With its brief flexi ble approach,It not only displays rich and colorful details,deep and complicated emotions,but also reveals the complex relationship be tween man and society,as well as man and the nature.In advertisement English,Figure of speech also plays an important role and increas ingly turns to be one of the most widely used means in the advertising industry. 展开更多
关键词 figureS of SPEECH ENGLISH ADVERTISEMENT
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A Feminism Analysis of the Spiritual Journey of Female Figures in Little Women 被引量:1
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作者 郝明 《海外英语》 2016年第15期177-179,共3页
Louisa May Alcott is an excellent American female writer of the 19th century as well as a feminist who focuses on women and their problems.Little Women,her best known novel,is about four girls' daily lives.Through... Louisa May Alcott is an excellent American female writer of the 19th century as well as a feminist who focuses on women and their problems.Little Women,her best known novel,is about four girls' daily lives.Through description of their life,Alcott disclosed the discrimination and persecution the patriarchy society of the 19th century forced on women and pointed out a road for women to fight against the patriarchy society.The thesis demonstrated Alcott's feminism viewpoint and its embodiment in Little Women through analysis of the novel's plot and the character of the four heroines. 展开更多
关键词 FEMINISM Little Women Louisa May Alcott PATRIARCHY female figures
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Performance Tendency of Gain and Noise Figure at Different EDFA Configurations 被引量:1
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作者 Belloui Bouzid 《Journal of Electronic Science and Technology of China》 2010年第1期74-77,共4页
A comprehensive behavioral investigation of gain and noise figure (NF) at different erbium doped fiber amplifier (EDFA) configurations is proposed. Configurations such as single pass (SP), single pass with filt... A comprehensive behavioral investigation of gain and noise figure (NF) at different erbium doped fiber amplifier (EDFA) configurations is proposed. Configurations such as single pass (SP), single pass with filter (SPF), double pass (DP) and double pass with filter (DPF) are designed, investigated and compared. A continuous increasing of gain value is recorded by changing the configuration from SP to SPF to DP then to DPF. The NF value shows different behaviors at different configurations. 展开更多
关键词 Double pass erbium doped fiber gain noise figure single pass.
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Illustrations and figures in RESEARCH ARTICLES
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《Journal of Medical Colleges of PLA(China)》 CAS 2015年第1期55-59,共5页
Introduction This page provides general information for authors creating figures to maximize the quality of those illustrations and to prepare artwork for submission to BioMed Central journals.Guidelines on specific t... Introduction This page provides general information for authors creating figures to maximize the quality of those illustrations and to prepare artwork for submission to BioMed Central journals.Guidelines on specific types of figures,and on supported file formats are also available.BioMed Central encourages authors to use figures where this will increase the clarity of an article.The use of colour figures in articles is free of charge. 展开更多
关键词 figureS SUBMISSION maximize submit prepare colour figure elsewhere HOLDER GRAPHICS
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A High Figure-of-Merit SOI MOSFET with a Double-Sided Charge Oxide-Trench
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作者 FAN Yuan-Hang LUO Xiao-Rong +3 位作者 WANG Pei ZHOU Kun ZHANG Bo LI Zhao-Ji 《Chinese Physics Letters》 SCIE CAS CSCD 2013年第8期212-215,共4页
A novel silicon-on-insulator(SOI)metal-oxide-semiconductor field effect transistor(MOSFET)with a high figure of merit(FOM)is proposed.The device features a double-sided charge oxide-trench(DCT)and a trench gate extend... A novel silicon-on-insulator(SOI)metal-oxide-semiconductor field effect transistor(MOSFET)with a high figure of merit(FOM)is proposed.The device features a double-sided charge oxide-trench(DCT)and a trench gate extended to the buried oxide.First,the oxide trench causes multiple-dimensional depletion in the drift region,which not only improves the electric field(E-field)strength,but also enhances the reduced surface field effect.Second,self-adaptive charges are collected in the DCT,which enhances the E-field strength of the trench oxide.Third,the oxide trench folds the drift region along the vertical direction,reducing the device cell pitch.Fourth,one side of the DCT regions acts as the body contact of p-well to reduce cell pitch and specific on-resistance(R_(on,sp))further.Compared with a trench gate lateral double-diffused MOSFET,the DCT MOSFET increases the breakdown voltage(BV)from 53 V to 158 V at the same cell pitch of 3.5μm,or reduces the cell pitch by 60%and Ron,sp by 70%at the same BV.The FOM(FOM=BV^(2)/Ron,sp)of the proposed structure is 23 MW/cm^(2). 展开更多
关键词 TRENCH BREAKDOWN figure
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High Thermoelectric Figure of Merit of Ag8SnS6 Component Prepared by Electrodeposition Technique
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作者 TAHER Ghrib AMAL Lafy Al-Otaibi +2 位作者 MUNIRAH Abdullah Almessiere IBTISSEM Ben Assaker RADHOUANE Chtourou 《Chinese Physics Letters》 SCIE CAS CSCD 2015年第12期126-130,共5页
A new thermoelectric material Ag8SnS6, with ultra-low thermal conductivity in thin film shape, is prepared on indium tin oxide coated g/ass (ITO) substrates using a chemical process via the electrodeposition techniq... A new thermoelectric material Ag8SnS6, with ultra-low thermal conductivity in thin film shape, is prepared on indium tin oxide coated g/ass (ITO) substrates using a chemical process via the electrodeposition technique. The structural, thermal and electrical properties are studied and presented in detail, which demonstrate that the material is of semiconductor type, orthorhombic structure, with a band gap in the order of 1.56eV and a free carrier concentration of 1.46 × 10^17 cm-3. The thermal conductivity, thermal diffusivity, thermal conduction mode, Seebeck coefficient and electrical conductivity are determined using the photo-thermal deflection technique combined with the Boltzmann transport theory and Cahill's model, showing that the AgsSnS6 material has a low thermal conductivity of 3.8 Wm - 1K- 1, high electrical conductivity of 2.4 × 10^5 Sm- 1, Seebeck coefficient of -180μVK-1 and a power factor of 6.9mWK-2m-1, implying that it is more efficient than those obtained in recently experimental investigations for thermoelectric devices. 展开更多
关键词 figure High Thermoelectric figure of Merit of Ag8SnS6 Component Prepared by Electrodeposition Technique Ag SnS
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A Psychoanalytical Study of the Father Figure in Family in the Trilogy of Henry Ⅵ
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作者 甘麟翰 《海外英语》 2016年第6期150-151,共2页
The paper aims to give a psychoanalytical study of the father and mother figure in Shakespeare's trilogy, Henry VI. It argues that the father figure is the stablising force of a prosperous society, and the disrupt... The paper aims to give a psychoanalytical study of the father and mother figure in Shakespeare's trilogy, Henry VI. It argues that the father figure is the stablising force of a prosperous society, and the disruption of the patriarchal system will be disastrous. Then the paper will give a close study of the relationship between king Henry and his wife in the domestic circle. It will conclude by making a speculation about Shakespeare's opinion about the patriarchy. 展开更多
关键词 PSYCHOANALYSIS FATHER figure impotent MOTHER figure
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CORRELATION BETWEEN THE NUMBER OF MITOTIC FIGURES AND THE PERCENTAGE OF Ki67-POSITIVE CELLS IN NON-HODGKIN’S LYMPHOMAS
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作者 黄高升 FellerAC LennertK 《Chinese Medical Sciences Journal》 CAS CSCD 1994年第1期16-19,共4页
Proliferative activity in 106 cases of non-Hodgkin’s lymphoma was estimated using the monoclonal antibody Ki67 and by counting the number of mitotic figures. The percentage of Ki67-positive cells was compared with th... Proliferative activity in 106 cases of non-Hodgkin’s lymphoma was estimated using the monoclonal antibody Ki67 and by counting the number of mitotic figures. The percentage of Ki67-positive cells was compared with the median number of mitotic figures per square millimeter. Both Ki67 positivity and the number of mitotic figures were found to be greater in high grade than in low grade lymphomas, although there was an overlap between the two grades of malignancy. A close correlation was found between the number of mitotic figures and the percentage of Ki67-positive cells not only in all lymphoma typo taken together (r_s= 0. 834 . P<0. 001). but also in B-cell lymphoma (r_s= 0. 8 1 P< 0. 001) and T-cell lymphoma (r_s = 0. 764. P<0. 00 1) taken seprately. Thus, both methods are useful for the estimation of proliferative activity. but each method has its advantages and disadvantages. 展开更多
关键词 lymphma non-Hodgkin’s mitotic figures monoclonal antibody Ki67
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Father Figures in On the Road
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作者 骆菀如 《海外英语》 2019年第9期186-187,共2页
On the Road was the most popular book Jack Kerouac ever wrote. In this book, there are many father figures who hold different attitudes to American culture. Dean’s searching for his old father symbolized his looking ... On the Road was the most popular book Jack Kerouac ever wrote. In this book, there are many father figures who hold different attitudes to American culture. Dean’s searching for his old father symbolized his looking for spiritual freedom under the repression in post-War America. His failing to seek for it implied that the Beats tried to seek for spiritual freedom but failed to. 展开更多
关键词 On the Raod FATHER figureS the BEATS SEEKING for“Fahter”
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Figure Switching Errors in English-Chinese CI
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作者 柴廷婷 《海外英语》 2016年第11期165-168,共4页
This paper is an experimental study on figure switching errors of student interpreters in their English to Chinese consecutive interpreting. The study examined interpretation recordings during the second round of the ... This paper is an experimental study on figure switching errors of student interpreters in their English to Chinese consecutive interpreting. The study examined interpretation recordings during the second round of the 2016 ACIC, focusing on how student interpreters coped with figures. Observation results show that omission is the most common error for all students and for the four types of figures involved in the research. Most errors are made in the translation of big round numbers. Fast speed of the source speech as well as figure clusters turn out to be the most outstanding causes for errors. Such observation results are expected to provide implications for future interpreting teaching. 展开更多
关键词 figure SWITCHING error OMISSION WRONG interpretation approximation student INTERPRETER
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