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Synthesis of carbon-coated cobalt ferrite core-shell structure composite:A method for enhancing electromagnetic wave absorption properties by adjusting impedance matching

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Chinese Journal of Chemical Engineering 2022年第7期35卷 206-217页

作者： Jing Gao Zhijun Ma fuli liu Cunxin Chen School of Mining Liaoning Technical UniversityFuxin 123000China School of Chemical and Environmental Engineering China University of Mining and TechnologyBeijing 100083China

Cobalt ferrite has problems such as poor impedance matching and high density,which results in unsatisfactory electromagnetic wave(EMW)absorption *** this study,the CoFe_(2)O_(4)@C core-shell structure composite was synthesized by a two-step hydrothermal method.X-ray diffraction,transmission electron microscopy,Fourier transform infrared spectroscopy,thermogravimetric analysis,and vector network analysis et *** used to test the structure and EMW absorption properties of CoFe_(2)O_(4)@C *** results show that the reflection loss(RL)of the CoFe_(2)O_(4)@C composite reaches the maximum value of25.66 dB at 13.92 GHz,and the effective absorbing band(EAB)is 4.59 GHz(11.20-15.79 GHz)when the carbon mass content is 6.01%.The RL and EAB of CoFe_(2)O_(4)@C composite are increased by 219.55%and 4.59 GHz respectively,and the density is decreased by 20.78%compared with the cobalt *** enhanced EMW absorption properties of CoFe_(2)O_(4)@C composite are attributed to the attenuation caused by the strong natural resonance of the cobalt ferrite,moreover,the carbon coating layer adjusts the impedance matching of the composite,and the introduced dipole polarization and interface polarization can cause multiple Debye relaxation processes.

关键词： Cobalt ferrite Core-shell structure composite Electromagnetic wave absorption Impedance matching

Regulation of Reproduction in Delayed Gametophyte of Saccharina japonica (Laminariales, Phaeophyceae): Effects of Light Intensity, Quality and Photoperiod

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Journal of Ocean University of China 2023年第1期22卷 242-250页

作者： WANG Xiao LIANG Zhourui liu fuli ZHANG Pengyan YUAN Yanmin liu Yi WANG Wenjun SUN Xiutao Key Laboratory of Sustainable Development of Marine Fisheries Ministry of AgricultureYellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdao 266071China Key Laboratory of Marine Genetics and Breeding Ministry of EducationCollege of Marine Life ScienceOcean University of ChinaQingdao 266003China

Saccharina japonica gametophytes can survive a long period under unfavorable environmental conditions,while they also delay in growth and/or *** the reproduction in delayed gametophyte of *** was known to be strongly influenced by light intensity,light quality,and photoperiod,no previous studies have evaluated their interactive effects on *** evaluate these effects,we used an orthogonal experiment to expose delayed gametophytes of *** to different light intensities,light qualities,and photoperiods for 12 *** results showed that changes in light intensity rather than light quality and photoperiod significantly affected the relative growth rates of the delayed *** light had the greatest promotion on reproduction *** optimal light conditions in the early vegetative growth phase in gametogenesis induction for the delayed gametophytes were at 60–80μmol photons m^(−2) s^(−1) with daylength of 12 or 16 hours under white or blue *** the delayed gametophytes were maintained in a constant light condition from delayed state to gametogenesis,the beneficial photoperiods for vegetative growth and reproductive rate were both 16L(16 hours of light):8D(8 hours of dark).However,when the delayed *** gametophytes achieve the optimal growth state during the first 6 days and then they were cultured at different light conditions for the following 6 days,the reproduction rate increased as the daylength decreased and attained a peak value in group of 8L:16D photoperiod,indicating that photoperiod adjustment at the transition period is crucial in the gametogenesis induction process of delayed gametophyte of ***.

关键词： Saccharina japonica light intensity light quality photoperiod gametogenesis vegetative growth

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Derlin-1 and TER94/VCP/p97 are required for intestinal homeostasis

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Journal of Genetics and Genomics 2022年第3期49卷 195-207页

作者： fuli liu Hang Zhao Ruiyan Kong Lin Shi Zhengran Li Rui Ma Huiqing Zhao Zhouhua Li College of Life Sciences Capital Normal UniversityBeijing 100048China Department of Neurology Xuanwu HospitalCapital Medical UniversityBeijing 100053China

Adult stem cells are critical for the maintenance of residential tissue homeostasis and functions. However,the roles of cellular protein homeostasis maintenance in stem cell proliferation and tissue homeostasis are not fully understood. Here, we find that Derlin-1 and TER94/VCP/p97, components of the endoplasmic reticulum(ER)-associated degradation(ERAD) pathway, restrain intestinal stem cell proliferation to maintain intestinal homeostasis in adult Drosophila. Depleting any of them results in increased stem cell proliferation and midgut homeostasis disruption. Derlin-1 is specifically localized in the ER of progenitors, and its Cterminus is required for its function. Interestingly, we find that increased stem cell proliferation is resulted from elevated ROS levels and activated JNK signaling in Derlin-1-or TER94-deficient progenitors. Further removal of reactive oxygen species(ROS) or inhibition of JNK signaling almost completely suppresses increased stem cell proliferation. Together, these data demonstrate that the ERAD pathway is critical for stem cell proliferation and tissue homeostasis. Thus, we provide insights into our understanding of the mechanisms underlying cellular protein homeostasis maintenance(ER protein quality control) in tissue homeostasis and tumor development.

关键词： Derlin-1 TER94/VCP/p97 ERAD Intestinal homeostasis Drosophila

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内在性超越:艾米莉·勃朗特早期诗歌解读

外国文学研究 2011年第1期33卷 95-102页

作者：刘富丽台州学院外国语学院

《呼啸山庄》问世前的10年间,艾米莉·勃朗特已创作诗歌约200首,为她惟一小说的诞生做了充分的准备。作为游离于时代文学主流的玄思型诗人,艾米莉诗意地再现童年记忆,表现情感、意志、宗教信仰和人生理念等,于内在的意识世界而非外在的... 详细信息

《呼啸山庄》问世前的10年间,艾米莉·勃朗特已创作诗歌约200首,为她惟一小说的诞生做了充分的准备。作为游离于时代文学主流的玄思型诗人,艾米莉诗意地再现童年记忆,表现情感、意志、宗教信仰和人生理念等,于内在的意识世界而非外在的物质世界探寻真实,并通过心象的滤透,诗性地阐释了一个思想杂陈的内在世界。同时,在生活方式和诗歌创作中,她也致力于让进入肉体之前就已经存在的灵魂回归本源,与神合一,从而使得"神",这种超越具体物象的最高存在,成为艾米莉构建"身在世中,超然世外"这一人生哲学的思想依托。

关键词：艾米莉·勃朗特早期诗歌内在超越

Impact of Environmental Factors on the Photosynthesis and Respiration of Young Seedlings of <i>Sargassum thunbergii</i>(Sargassaceae, Phaeophyta)

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American Journal of Plant Sciences 2013年第12期4卷 27-33页

作者： Zhourui Liang Xiutao Sun Feijiu Wang Wenjun Wang fuli liu Key Laboratory of Sustainable Development of Marine Fisheries Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao China

Sargassum thunbergii is of great economic and ecological value to sea cucumber cultures and seaweed beds. However, studies on photosynthesis and respiration of S. thunbergii are limited. In this study, a liquid-phase oxygen electrode system and a chlorophyll fluorescence spectrometer were used to determine the photosynthetic characteristics of S. thunbergii seedlings at various light intensities, temperatures, and salinities. The light-saturated net photosynthetic rates, light saturation points, and respiratory rates of germlings were investigated. Results showed that the increase in rate of light saturation point was slow in the first 4 d, rapidly increased from 5 d to 9 d, and then gently increased at the final few days of the 15 d indoor culture period. The photosynthetic rate or respiratory rate of the seedlings rapidly and significantly decreased when the temperature was °C or >28°C. Short-term high- or low-salinity shock had significant effect on the photosynthetic and respiratory rates of the seedlings, specifically at 10 and 50 psu. However, the photosynthetic and respiratory rates recovered to the normal levels after 24 h of recovery period, which demonstrated a powerful ion-transport system of the seedlings. These results provided reference for the artificial breeding of S. thunbergii.

关键词： Sargassum Thunbergii Temperature Salinity Light Photosynthesis Respiration

Reproductive Biology of <i>Sargassum thunbergii</i>(Fucales, Phaeophyceae)

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American Journal of Plant Sciences 2014年第17期5卷 2574-2581页

作者： Zhourui Liang Feijiu Wang Xiutao Sun Wenjun Wang fuli liu Key Laboratory of Sustainable Development of Marine Fisheries Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao China

Sargassum thunbergii is an economically important brown alga that is used as a perferred food for sea cucumber in China. However, reports on the reproductive biology of S. thunbergii are limited. This study observed the characteristics of mature receptacles. The effects of different temperatures, light intensities, and photoperiods on the egg release of mature S. thunbergii receptacles were investigated. A liquid-phase oxygen electrode system was used to obtain light saturation and light compensation points of egg and young thalli of S. thunbergii. Results showed that temperature was the key factor for the egg release of mature receptacles. The conditions most conducive to egg release were 20°C to 23°C temperature and 50 μmol photons m-2·s-1 to 200 μmol photons m-2·s-1 light intensity. In addition, the light saturation and compensation points of unfertilized eggs or young thalli at 2 d or 3 d postfertilization ranged from 90 μmol photons m-2·s-1 to 120 μmol photons m-2·s-1 and 14 μmol photons m-2·s-1 to 22 μmol photons m-2·s-1, respectively. The combined results provide a reference for the sporeling culture of S. thunbergii.

关键词： Sargassum thunbergii Reproductive Biology Temperature Light

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英汉翻译中的主位推进模式

外语教学与研究 2006年第5期38卷 309-312页

作者：刘富丽台州学院外国语学院浙江省临海市317000

在语篇翻译中,源语语篇句群中各个小句的主位推进模式所体现的语篇目的和整体语篇效果,要求译者必须在译文中再现或重建原文主位模式以求达到与原文相近的语篇效果。本文探讨英汉翻译中源语和译语间主位推进模式的转换规律,认为顺应译... 详细信息

在语篇翻译中,源语语篇句群中各个小句的主位推进模式所体现的语篇目的和整体语篇效果,要求译者必须在译文中再现或重建原文主位模式以求达到与原文相近的语篇效果。本文探讨英汉翻译中源语和译语间主位推进模式的转换规律,认为顺应译语主位推进规范,才能构建出衔接得当、语意连贯的译文,再现原文信息结构所产生的交际效果。

关键词：语篇主位推进模式转换规律

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我国足球体制运行中十种矛盾关系的分析

沈阳体育学院学报 2012年第3期31卷 51-53页

作者：刘夫力李红广州体育学院运动训练系广东广州510075 大连工业大学辽宁大连116043

针对我国足球体制改革的现状及目前体制运行中存在的诸多矛盾,采用文献资料分析、社会调查和专家调查等方法,在对我国足球改革进程做简要回顾的基础上,确定现行体制运行中存在的十种矛盾关系,并综合地分析各种矛盾的根源及对我国足球事... 详细信息

针对我国足球体制改革的现状及目前体制运行中存在的诸多矛盾,采用文献资料分析、社会调查和专家调查等方法,在对我国足球改革进程做简要回顾的基础上,确定现行体制运行中存在的十种矛盾关系,并综合地分析各种矛盾的根源及对我国足球事业发展的危害,为深化足球改革及制定发展对策提供参考。

关键词：足球改革体制运行矛盾关系

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基于用户下载需求偏好的P2P信誉模型

中国科学技术大学学报 2010年第5期40卷 513-520页

作者：纪雯杨寿保俞瑜刘福丽中国科学技术大学计算机科学技术系安徽合肥230026

虽然现有的信誉机制减少了P2P文件共享系统中的"搭便车"和"公有悲剧"现象,但依据信誉大小来选择服务节点仍会造成网络拥塞以及"马太效应"等问题.为此提出了一种基于用户下载需求偏好的P2P信誉模型,该模型将服务节点中所请求文件的评价... 详细信息

虽然现有的信誉机制减少了P2P文件共享系统中的"搭便车"和"公有悲剧"现象,但依据信誉大小来选择服务节点仍会造成网络拥塞以及"马太效应"等问题.为此提出了一种基于用户下载需求偏好的P2P信誉模型,该模型将服务节点中所请求文件的评价值和其承诺提供的带宽大小这两种因素相结合,作为请求节点选择服务节点的依据.根据不同用户偏好的效用大小不同,服务节点可以动态制定当前的承诺带宽以吸引其他节点下载.仿真结果表明,该方案可以有效缓解热门节点造成的网络拥塞现象,并可以提高网络的整体资源利用率.

关键词： P2P文件共享系统信誉模型网络拥塞偏好带宽承诺