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Chinese Chemical Letters 1998年第3期9卷 231-232页

作者： Mei Xin ZHAO Qun LIU fu shun liang Jing fu LIU Bao Zhong ZHAO LianZhong LI (Department of Chemistry, Northeast Normal University, Changchun, 130024)(Department of Chemistry, Jilin Teacher college, Jilin, 131000) NE Normal Univ Dept Chem Changchun 130024 Peoples R China Jilin Teacher Coll Dept Chem Changchun 131000 Peoples R China

α,α'-Dicinnamoyl ketene cyclic S, S-acetals 4 were reacted with ethylenediamine to afford α,α'-dicinnamoyl ketene cyclic N,N-acetals 5. This process provides a new method for thesynthesis of 5 in high yield under ... 详细信息

关键词： α,α'-dicinnamoyl ketene cyclic S,S-acetals ethylenediamine substitution reaction,α,α'-dicinnamoyl ketene cyclic N,N-acetals

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体认即反思

河北学刊 2025年第1期45卷 11-19页

作者：沈顺福山东大学易学与中国古代哲学研究中心暨儒学高等研究院

体认是宋明理学的重要概念之一,主要是指由心灵自身所发动的、面对自身的活动。这种对自身的心灵活动便是现代哲学的反思。体认既是对天理的体合、实现心理合一,也是让本性澄明。理学家认为,自然的浊气遮蔽了天生的本性,而体认便是心灵... 详细信息

体认是宋明理学的重要概念之一,主要是指由心灵自身所发动的、面对自身的活动。这种对自身的心灵活动便是现代哲学的反思。体认既是对天理的体合、实现心理合一,也是让本性澄明。理学家认为,自然的浊气遮蔽了天生的本性,而体认便是心灵对气质浑浊的心灵的活动,通过纯洁气质,让性澄明。心理合一也是本性澄明——理即性;对本性的觉察也是对自身身份的觉悟,形成主体——性即体。对性的认可便是对理的接受与遵循;体认天理的活动便是合“理”的超越性活动。

关键词：体认反思理理学

Human neural stem cell-derived extracellular vesicles protect against ischemic stroke by activating the PI3K/AKT/mTOR pathway

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Neural Regeneration Research 2025年第11期20卷 3245-3258页

作者： Jiayi Wang Mengke Zhao Dong fu Meina Wang Chao Han Zhongyue Lv liang Wang Jing Liu Stem Cell Clinical Research Center The First Affiliated Hospital of Dalian Medical UniversityDalianLiaoning ProvinceChina Dalian Innovation Institute of Stem Cell and Precision Medicine DalianLiaoning ProvinceChina Institute(College)of Integrative Medicine Dalian Medical UniversityDalianLiaoning ProvinceChina

Human neural stem cell-derived extracellular vesicles exhibit analogous functions to their parental cells,and can thus be used as substitutes for stem cells in stem cell therapy,thereby mitigating the risks of stem cell therapy and advancing the frontiers of stem cell-derived *** lays a foundation for the development of potentially potent new treatment modalities for ischemic ***,the precise mechanisms underlying the efficacy and safety of human neural stem cell-derived extracellular vesicles remain unclear,presenting challenges for clinical *** promote the translation of therapy based on human neural stem cell-derived extracellular vesicles from the bench to the bedside,we conducted a comprehensive preclinical study to evaluate the efficacy and safety of human neural stem cell-derived extracellular vesicles in the treatment of ischemic *** found that administration of human neural stem cell-derived extracellular vesicles to an ischemic stroke rat model reduced the volume of cerebral infarction and promoted functional recovery by alleviating neuronal *** human neural stem cell-derived extracellular vesicles reduced neuronal apoptosis by enhancing phosphorylation of phosphoinositide 3-kinase,mammalian target of rapamycin,and protein kinase B,and these effects were reversed by treatment with a phosphoinositide 3-kinase *** findings suggest that human neural stem cell-derived extracellular vesicles play a neuroprotective role in ischemic stroke through activation of phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin signaling ***,we showed that human neural stem cell-derived extracellular vesicles have a good in vivo safety ***,human neural stem cell-derived extracellular vesicles are a promising potential agent for the treatment of ischemic stroke.

关键词： behavior exosome extracellular vesicles ischemic stroke mammalian target of rapamycin(mTOR) middle cerebral artery occlusion neural stem cells neuronal apoptosis phosphoinositide 3-kinase(PI3K) protein kinase B(AKT)

Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi Tian Tang Yunfan Zhang Zhiyuan Ma Jingwen Sun liang Xue Wenyao Zhang Pan Xiong Xin Wang Junwu Zhu Yongsheng fu Key Laboratory for Soft Chemistry and functional Materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Lithium-sulfur batteries Staged dendrite suppression Shuttle effect Surface-negatively-charged nanodiamond

A Novel orange-red light emitting Metal-Complex Polymer:Copoly- mer of Bis(8-hydroxy quinoline)Zinc and 1,4-Divinylene phenylene

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A Novel orange-red light emitting Metal-Complex Polymer:Copo...

Long-Range Ordered Nanostructures of Assembling Macromolecules via Rational Design of Kinetic Pathways:A Computational Perspective

第九届全国发光学术会议

作者： fu-shun liang, Guang-Wang, Ze Liu, Guang-Ping Su, Li-Xiang Wang , Xia-Bin Jing, Fo-Song Wang State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P.R. China

A goal in the design of next-generation organic LEDs is to utilize polymers containingelectroluminescent functionality with efficient charge-transport *** a result, the organic LEDscould be conveniently fabricated by ...

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Chinese Journal of Polymer Science 2023年第9期41卷 1318-1328,I0004页

作者： liang-shun Zhang Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai200237China

Designing the kinetic pathways of assembling macromolecules such as block copolymers and DNA strands is crucial not only for an achievement of thermodynamically equilibrium nanostructures over macroscopic areas,but also for a better understanding of formation process of higher-level superstructures where well-tailored assemblies act as mesoscopic building *** analysis and computer simulations provide excellent opportunities to microscopically reveal the kinetics and mechanism of structural evolution as well as the collective behaviors of building *** this perspective,we summarize our efforts of theoretical and computational modelling to understand the long-range ordering mechanisms and the organization kinetics of assembling macromolecules along designable ***,we present the computational modelling and recent strategies of designable pathways for the achievement of long-range ***,from the computational views,we give the applications of pathway-designed strategies to explore the ordering mechanism and kinetics in the course of structural evolution,covering the block copolymers and their nanocomposites under zone annealing as well as the hierarchical self-assembly of mesoscopic building units(e.g.,patchy micelles and DNA-functionalized nanoparticles).Finally,we outlook future directions in the field of designable pathways for the achievement of long-range ordered *** perspective could promote further efforts towards the wide applications of theoretical and computational modelling in the construction of soft hybrid metamaterials.

关键词： Dynamic self-consistent field theory Structural evolution Block copolymers Hierarchical self-assembly Polymerization

Correlation analysis of collagen proportionate area in Budd-Chiari syndrome: A preliminary clinicopathological study

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World Journal of Clinical Cases 2019年第2期7卷 130-136页

作者： fu-liang He Chuan Li fu-Quan Liu Xing-shun Qi Department of Interventional Therapy Beijing Shijitan HospitalCapital Medical University Liver Cirrhosis Study Group Department of GastroenterologyGeneral Hospital of Shenyang Military Area Section of Medical Services General Hospital of Shenyang Military Area

BACKGROUND Collagen proportionate area(CPA) is an important index for assessing the severity of liver fibrosis. Budd-Chiari syndrome can frequently progress to liver fibrosis and cirrhosis. CPA might play an important role in the pathological progress of Budd-Chiari *** To explore the role of CPA in predicting the outcomes of patients with BuddChiari *** Nine patients with Budd-Chiari syndrome undergoing transjugular intrahepatic portosystemic shunt(TIPS) were included. The median CPA level and correlation of CPA and prognosis of TIPS were *** Median CPA was 23.07%(range: 0%-40.20%). Pearson's χ2 test demonstrated a significant correlation of CPA with history of gastrointestinal bleeding(Pearson's coefficient: 0.832, P = 0.005), alanine aminotransferase(Pearson's coefficient:-0.694, P = 0.038), and prothrombin time(Pearson's coefficient: 0.68, P = 0.044).Although CPA was not significantly correlated with shunt dysfunction or hepatic encephalopathy after TIPS, the absolute CPA was relatively larger in patients who developed shunt dysfunction or hepatic encephalopathy after *** This preliminary clinicopathological study found a marginal effect of CPA on the outcomes of Budd-Chiari syndrome patients treated with TIPS.

关键词： Budd-Chiari syndrome Hepatic vein Occlusion Thrombosis Fibrosis

Microstructures and properties of Nb-Si-based alloys with B addition

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Rare Metals 2023年第8期42卷 2801-2808页

作者： liang-shun Luo fu-Xin Wang Xian-Yu Meng Yan-Jin Xu liang Wang Yan-Qing Su Jing-Jie Guo Heng-Zhi fu School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China AVIC Manufacturing Technology Institute Beijing 100024China

The Nb-16Si-18Ti-xB(at%,similarly hereinafter,x=0,1,2,3)alloys were prepared by arc melting in a water-cooled copper *** influences of B addition on their microstructures and properties were based on the data of X-ray diffraction(XRD),field emission scanning electron microscopy(FESEM),and electronic universal material testing *** is found that the addition of B promotes the formation ofα-Nb5Si3phase and suppresses the formation of Nb3Si phase.B addition also tends Nb-16Si-18Ti alloy to form the hypereutectic *** content of silicide phases shows a trend of firstly decreasing and then increasing in Nb-16Si-18Ti-xB(x=0,1,2,3)*** size of Nb solid solution(Nbss)phase increases in Nb-16Si-18Ti-xB(x=0,1,2,3)alloys after heat treatment at 1523 K for 10 *** room temperature compression strength of Nb-16Si-18Ti alloy increases firstly and then decreases with B *** high-temperature compression strength of Nb-16Si-18Ti alloy decreases firstly and then increases with B *** is found that the volume and size of silicide phases have a synergistic effect on the compression strength of Nb-TiSi-based alloys.

关键词： Nb-Si alloys B element Phase stability Compression yield strength

Phase transformation behavior and mechanical properties of Ti_(50)Ni_(49-x) Fe_1Co_x shape memory alloys

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Rare Metals 2013年第3期32卷 225-227页

作者： Bin Chen fu-shun Liu School of Materials Science and Engineering Beijing University of Aeronautics and Astronautics

In this article, the influence of Co addition on phase transformation behavior and mechanical properties of TiNiFe shape memory alloy was investigated extensively. Differential scanning calorimetry （DSC） measurements shows that martensitic start transformation temperatures （Ms） decrease drastically with increasing Co content, while the R phase transformation start temperatures （Rs） vary slightly. Nevertheless, the substitution of Ni with Co does not exert substantial influence on the two-stage transformation behavior of the TiNiFe alloy. The results from stress-strain curves indicate that higher critical stress for stress-induced martensitic transformation （σSIM） has been obtained because of Co addition. In such cases, the Ti50Ni48sFelCO1.0 alloy maintains a good shape memory effect, and a maximum recoverable strain of 7.5 % can be obtained.

关键词： Ms σSIM Shape memory effect

Zn_(0.5)Co_(0.5)Mn_(0.5)Fe_(0.5)Al_(0.5)Mg_(0.5)O_(4) high-entropy oxide with high capacity and ultra-long life for Li-ion battery anodes

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Journal of Advanced Ceramics 2023年第1期12卷 59-71页

作者： shun LI Zhijian PENG Xiuli fu State Key Laboratory of Information Photonics and Optical Communications School of Integrated CircuitsBeijing University of Posts and TelecommunicationsBeijing 100876China School of Science China University of GeosciencesBeijing 100083China

Owing to the robust Li-ion storage properties induced by entropy stabilization effect,transition metal(TM)-based high-entropy oxides(HEOs)are promising electrode materials for highperformance Li-ion batteries(LIBs).In this study,a six-component Zn_(0.5)Co_(0.5)Mn_(0.5)Fe_(0.5)Al_(0.5)Mg_(0.5)O_(4) spinel-structured HEO(denoted as 6M-HEO,where M=Zn,Co,Mn,Fe,Al,and Mg)was synthesized using a facile coprecipitation *** used as an anode of the LIBs,its stable high-entropy nanostructures exhibit high specific capacity(290 mAh·g^(−1) at a current density of 2 A·g^(−1)),ultra-long cycling stability(maintained 81%of the initial capacity after 5000 cycles),and outstanding rate *** excellent performance can be attributed to two ***,its high-entropy structure can reduce the stress caused by intercalation and avoid volume expansion of the HEO *** a result,the cyclic stability was significantly ***,owing to the unique element selection in this study,four active elements(Zn,Co,Mn,and Fe)were incorporated in inactive MgO and Al2O3 matrice after the first discharge process,which would allow such high-entropy materials to withstand the rapid shuttle of Li ions.

关键词： coprecipitation method high-entropy oxide(HEO) Li-ion batteries(LIBs) anode