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汉魏士人问题与文学批评之演变

中国人民大学学报 2013年第4期27卷 17-26页

作者：袁济喜中国人民大学国学院

东汉末年士人活动与魏晋文学批评形成有着直接的联系,当时的士人受党锢之祸的影响,呈现出不同的政治与人生立场,清议风气与批评意识的活跃,促进了汉魏之际文学批评形态的变化。对于我们了解中国古代文论精神蕴涵及其传承问题有着重要的... 详细信息

东汉末年士人活动与魏晋文学批评形成有着直接的联系,当时的士人受党锢之祸的影响,呈现出不同的政治与人生立场,清议风气与批评意识的活跃,促进了汉魏之际文学批评形态的变化。对于我们了解中国古代文论精神蕴涵及其传承问题有着重要的启发。

关键词：汉末士人蔡邕命运文论演变精神蕴涵

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《文选》编选与嵇康形象

复旦学报（社会科学版） 2014年第6期56卷 42-51页

作者：袁济喜中国人民大学国学院北京100872

萧统的《文选》编选,不但反映其选文标准,更重要的是其对人生价值观的探讨体现出浓厚的人文精神。正始时代的风云巨变与嵇康本身内在特质的结合,使其形象在生前被偶像化、在死后被传说化,并且作品集数量增多,这都加大了编选的难度。本... 详细信息

萧统的《文选》编选,不但反映其选文标准,更重要的是其对人生价值观的探讨体现出浓厚的人文精神。正始时代的风云巨变与嵇康本身内在特质的结合,使其形象在生前被偶像化、在死后被传说化,并且作品集数量增多,这都加大了编选的难度。本文从《文选》选录作品的正面分析,"竹林七贤"与陶渊明评价的侧面比较,以及他人作品折射的嵇康形象出发,以《嵇康集》与《文选》编选作品之对比为主,以持相似观点的《文心雕龙》印证为辅,从而体察到在《文选》对嵇康诗所作遴选和嵇康人物形象的还原方面,萧统不但寻求与其性情相合的一面,还善于发掘"知音",他试图从文本出发呈现多面向的嵇康形象与内心世界,具有对文士"和而不同"的器度。

关键词：《文选》编选嵇康形象萧统宗旨思想蕴涵

Inter-stage performance and energy characteristics analysis of electric submersible pump based on entropy production theory

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Petroleum Science 2024年第2期21卷 1354-1368页

作者： Hui Wang Yang Yang Bin xi Wei-Dong Shi Chuan Wang Lei-Lei ji xiang-Yu Song Zhao-Ming He College of Hydraulic Science and Engineering Yangzhou UniversityYangzhou225009JiangsuChina College of Electrical and Mechanical Engineering Nanchang Institute of TechnologyNanchang330044JiangxiChina College of Mechanical Engineering Nantong UniversityNantong226019JiangsuChina National Research Center of Pumps Jiangsu UniversityZhenjiang212013JiangsuChina Zhejiang Zhenxing Petrochemical Machinery Co. Ltd.Ruian325204ZhejiangChina Department of Mechanical Engineering of Texas Tech University Lubbock79411TXUSA

The electric submersible pump(ESP) is a crucial apparatus utilized for lifting in the oil extraction *** lifting capacity is enhanced by the multi-stage tandem structure, but variations in energy characteristics and internal flow across stages are also introduced. In this study, the inter-stage variability of energy characteristics in ESP hydraulic systems is investigated through entropy production(EP) analysis,which incorporates numerical simulations and experimental validation. The EP theory facilitates the quantification of energy loss in each computational subdomain at all ESP stages, establishing a correlation between microscopic flow structure and energy dissipation within the system. Furthermore, the underlying causes of inter-stage variability in ESP hydraulic systems are examined, and the advantages and disadvantages of applying the EP theory in this context are evaluated. Consistent energy characteristics within the ESP, aligned with the distribution of internal flow structure, are provided by the EP theory, as demonstrated by our results. The EP theory also enables the quantitative analysis of internal flow losses and complements existing performance analysis methods to map the internal flow structure to hydraulic losses. Nonetheless, an inconsistency between the energy characterization based on EP theory and the traditional efficiency index when reflecting inter-stage differences is identified. This inconsistency arises from the exclusive focus of the EP theory on flow losses within the flow field, disregarding the quantification of external energy input to the flow field. This study provides a reference for the optimization of EP theory in rotating machinery while deeply investigating the energy dissipation characteristics of multistage hydraulic system, which has certain theoretical and practical significance.

关键词： Electric submersible pump(ESP) Entropy production theory Energy characteristics Inter-stage differences

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张融现象与宋齐文士活动

求是学刊 2021年第1期48卷 136-145,F0003页

作者：袁济喜中国人民大学国学院北京100872

张融是南朝宋齐时代的文士,有着独特的人生经历与性格表现。他为人狂而不野,诞而有检,与皇帝及大臣有着广泛的交往;他善于把握尺度,保全自己,成为一种独特的士人现象,折射出汉魏以来文士命运与人生道路的变迁。与此同时,他的文风与文学... 详细信息

张融是南朝宋齐时代的文士,有着独特的人生经历与性格表现。他为人狂而不野,诞而有检,与皇帝及大臣有着广泛的交往;他善于把握尺度,保全自己,成为一种独特的士人现象,折射出汉魏以来文士命运与人生道路的变迁。与此同时,他的文风与文学理论也自成体系,继承了汉魏以来文学自觉的传统,同时又有所推进。从社会现象的维度去研究文人命运,是中国古代文学研究的一个重要方面。

关键词：张融现象宋齐政治文士命运文学批评

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自然之美与人格培养

中国人民大学学报 1999年第6期13卷 87-92页

作者：袁济喜中国人民大学中文系北京100872

由于中国传统文化中天人感应学说的影响 ,中国古代美学注重自然与人格的融会 ;从先秦到六朝的“比德说”与人物品藻 ,便集中体现了这一点。古代美学主张从自然中获取人生自由与人格独立 ,摆脱世俗的束缚 ,得到真淳的审美愉悦 ,培养高尚... 详细信息

由于中国传统文化中天人感应学说的影响 ,中国古代美学注重自然与人格的融会 ;从先秦到六朝的“比德说”与人物品藻 ,便集中体现了这一点。古代美学主张从自然中获取人生自由与人格独立 ,摆脱世俗的束缚 ,得到真淳的审美愉悦 ,培养高尚的人格。

关键词：美学自然界人格中国

MKK7-mediated phosphorylation of JNKs regulates the proliferation and apoptosis of human spermatogonial stem cells

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World Journal of Stem Cells 2021年第11期13卷 1797-1812页

作者： Zeng-Hui Huang Chuan Huang xi-Ren ji Wen-Jun Zhou Xue-Feng Luo Qian Liu Yu-Lin Tang Fei Gong Wen-Bing Zhu Institute of Reproductive and Stem Cell Engineering Central South UniversityChangsha 410008Hunan ProvinceChina Department of Reproductive Center Reproductive and Genetic Hospital of CITIC-XiangyaChangsha 410008Hunan ProvinceChina Department of Sperm Bank Reproductive and Genetic Hospital of CITICXiangyaChangsha 410008Hunan ProvinceChina

BACKGROUND Human spermatogonial stem cells(SSCs)are the basis of ***,little is known about the developmental regulatory mechanisms of SSC due to sample origin and species *** To investigates the mechanisms involved in the proliferation of human *** The expression of mitogen-activated protein kinase kinase 7(MKK7)in human testis was identified using immunohistochemistry and western blotting(WB).MKK7 was knocked down using small interfering RNA,and cell proliferation and apoptosis were detected by WB,EdU,cell counting kit-8 and fluorescenceactivated cell *** bioinformatic analysis,the interaction of MKK7 with c-Jun N-terminal kinases(JNKs)was verified by protein co-immunoprecipitation and *** phosphorylation of JNKs was inhibited by SP600125,and the phenotypic changes were detected by WB,cell counting kit-8 and fluorescenceactivated cell *** MKK7 is mainly expressed in human SSCs,and MKK7 knockdown inhibits SSC proliferation and promotes their ***7 mediated the phosphorylation of JNKs,and after inhibiting the phosphorylation of JNKs,the phenotypic changes of the cells were similar to those after MKK7 *** expression of MKK7 was significantly downregulated in patients with abnormal spermatogenesis,suggesting that abnormal MKK7 may be associated with spermatogenesis *** MKK7 regulates the proliferation and apoptosis of human SSC by mediating the phosphorylation of JNKs.

关键词： MKK7 Spermatogonial stem cell Proliferation Apoptosis JNKs

Lead-free perovskite Cs_(2)AgBiBr_(6)photodetector detecting NIR light driven by titanium nitride plasmonic hot holes

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Photonics Research 2024年第3期12卷 522-533页

作者： ZIjiAN LIU YUYING xi WENBO ZENG TING ji WENYAN WANG SITONG GUO LINLIN SHI RONG WEN YANxiA CUI GUOHUI LI College of Physics College of Electronic Information and Optical EngineeringKey Laboratory of Advanced Transducers and Intelligent Control System of Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030032China

Lead-free perovskite Cs_(2)AgBiBr_(6)manifests great potential in developing high-performance,environmentally friendly,solution-processable photodetectors(PDs).However,due to the relatively large energy bandgap,the spectrum responses of Cs_(2)AgBiBr_(6)PDs are limited to the ultraviolet and visible region with wavelengths shorter than 560 *** this work,a broadband Cs_(2)AgBiBr_(6)PD covering the ultraviolet,visible,and near infrared(NIR)range is demonstrated by incorporating titanium nitride(TiN)nanoparticles that are prepared with the assistance of self-assembled polystyrene sphere *** addition,an atomically thick Al2O3layer is introduced at the interface between the Cs_(2)AgBiBr_(6)film and TiN nanoparticles to alleviate the dark current deterioration caused by nanoparticle *** a result,beyond the spectrum range where Cs_(2)AgBiBr_(6)absorbs light,the external quantum efficiency(EQE)of the TiN nanoparticle incorporated Cs_(2)AgBiBr_(6)PD is enhanced significantly compared with that of the control,displaying enhancement factors as high as 2000 over a broadband NIR wavelength *** demonstrated enhancement in EQE arises from the photocurrent contribution of plasmonic hot holes injected from TiN nanoparticles into Cs_(2)AgBiBr_(6).This work promotes the development of broadband solution-processable perovskite PDs,providing a promising strategy for realizing photodetection in the NIR region.

关键词： perovskite titanium ultraviolet