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A Conjugated Copolymer Bearing Imidazolium-based Ionic liquid:Electrochemical Synthesis and Electrochromic Properties

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Chinese Journal of Polymer Science 2021年第5期39卷 537-544,I0005页

作者： Xiao-Jing Lv li-bin xu liang Qian Yuan-Yuan Yang Zhi-Yi xu Jin li Cheng Zhang International Sci.&Tech.Cooperation Base of Energy Materials and Application College of Chemical EngineeringZhejiang University of TechnologyHangzhou 310014China

An imidazolium-based ionic liquid(IL)modified triphenylamine derivative,namely 1-(4-((4-(diphenylamino)benzoyl)oxy)butyl)-3-methyl imidazole tetrafluoroborate(TPAC_(6)IL-BF_(4)),was designed and synthesized,and further applied with 3,4-ethylene dioxythiophene(EDOT)to prepare conjugated copolymer P(EDOT:TPAC_(6)IL-BF_(4)) via electrochemical *** cyclic voltammetry curves show that the copolymer P(EDOT:TPAC_(6)IL-BF_(4))possesses two pairs of redox peaks,which should be ascribed to the redox behaviors of EDOT and *** ultraviolet-visible(UV-Vis)absorption spectrum of P(EDOT:TPAC_(6)IL-BF_(4))exhibits one maximum absorption peak at 580 nm and a small shoulder characteristic peak at 385 nm under neutral state which are assigned toπ-π^(*)conjugated structure of EDOT and *** being applied at the positive voltage,the copolymer color changes from dark blue to light blue,which is close to the color of poly(3,4-ethylenedioxythiophene)(PEDOT).Surprisingly,the copolymer P(EDOT:TPAC_(6)IL-BF_(4))shows shorter switching time of 0.37 s,0.30 s at 580 nm and 0.38 s,0.45 s at 1100 nm compared with *** is more intriguing that the copolymer P(EDOT:TPAC_(6)IL-BF_(4))exhibits electrochromism even in free supporting *** results confirm that the existence of imidazolium-based ionic liquid has an improvement on the ion diffusion properties and the switching time of conjugated polymer,which may provide a potential direction for the preparation of high-performance electrochromic materials.

关键词： Electrochromism Copolymer lonic liquid Electropolymerization Fast switching

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Synthesis,Structure,and Ring-opening Metathesis Polymerization of η~5-Pentamethylcyclopentadienyl-(η~5-exo-tricyclo [5.2.1.0^(2,6)]deca-2,5,8-trien-6-yl) Iron

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Chemical Research in Chinese Universities 2009年第5期25卷 662-665页

作者： ZHAO Xi li bin xu Shan-sheng SONG Hai-bin WANG Bai-quan State Key Laboratory of Elemento-Organie Chemistry. College of Chemistry Nankai University Tianjin 300071 P. R. China

η^5-Pentamethylcyclopentadienyl-（η^5-exo-tricyclo[5.***.1.0^2,6]deca-2,5,8-trien-6-yl） iron（3） was synthesized and characterized by ^1H NMR, ^13C NMR, MS, elemental analysis, IR, UV and X-ray diffraction analysis. Compound 3 was polymerized with ring-opening metathesis polymerization（ROMP） initiator （PCy3）2Cl2Ru=CHPh. ^1H NMR and IR spectra revealed the presence of CH=CH units in the polymer and supported the ROMP mechanism. GPC analysis of the polymer showed that the weight-average molecular weights（Mw） was 5967, and the polydispersity index（PDl） was 1.16. The polymer was also investigated by UV and cyclic voltammetry.

关键词： Ferrocene Metathesis Ring-opening polymerization Cyclic voltammetry X-ray diffraction

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Dynamic Simulation and Opening Bouncing Analysis of Vacuum Circuit Breaker with Permanent Magnetic Actuator

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高电压技术 2013年第7期39卷 1772-1777页

作者： liN Xin CAO Chen li bin liU Yang xu Jianyuan School of Electric Engineering Shenyang University of Technology Shenyang 110023 China

In order to research the dynamic characteristics of circuit breaker(CB) in opening process,taking a 12kV vacuum circuit breaker(VCB) with permanent magnetic actuator as the example,a dynamic model of the VCB is established based on the virtual prototype technology,and dynamic equations of the model are *** and experiment are carried out on the VCB of both opening and closing *** simulative opening time and closing time are 39.5ms and 54.6ms *** factors of opening bouncing and their effect principles are analyzed through dynamic simulations of opening bouncing *** results indicate that the increase in the stiffness coefficient of contact spring limits the opening bouncing;meanwhile increases in the preload of contact spring and the mass of shaft can enlarge the opening bouncing.

关键词：断路器动态模拟分析弹簧关闭时间

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Effects of IGF-1 and oxLDL on expression of phosphatase PHLPP1 in vascular smooth muscular cells

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Journal of Geriatric Cardiology 2009年第4期6卷 237-240页

作者： Xing-li Wu Ding-You Yang Zhong-Su Yang De-Yin li Hui-bin xu Shi-Wen Wang Institute of Geriatric Cardiology Chinese PLA General Hospital Beijing 100853 China

Objective To investigate the effects of insulin-like growth factor-1 （IGF-1） and oxidized low density lipoprotein （oxLDL） on expression ofphosphatase PHLPP 1 in vascular smooth muscle cells （VSMCs）. Methods Rabbit aortic VSMCs were cultured. VSMCs proliferation ability was determined by measuring cell number and mitochondrial dehydrogenase （MD） activity with MTT assay. Western blot was used to detect the protein expression ofphosphatase PHLPP1. Results IGF-1 （100ug/L） increased cell number and MD activity to 3.02 and 3.59 times of that in control group, oxLDL（501xg/ml） elevated the above two parameters to 2.03 and 2.91 times respectively. Western blot showed that IGF-1 and oxLDL inhibited the expression of PHLPPI to 39.27% and 40.26% of the control group （P〈0.01 ）. Conclusion IGF- 1 and oxLDL may enhance the proliferation of VSMCs by decreasing the expression ofphosphatase PHLPP 1.

关键词： PH domain leucine-rich repeat protein phosphatasel (PHLPP1) insulin-like growth factor-l oxidized low density lipoprotein(oxLDL) vascular smooth muscle cells

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Peripheral blood RNA biomarkers can predict lesion severity in degenerative cervical myelopathy

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Neural Regeneration Research 2025年第6期20卷 1764-1775页

作者： Zhenzhong Zheng Jialin Chen Jinghong xu bin Jiang Lei li Yawei li Yuliang Dai bing Wang Department of Spine Surgery The Second Xiangya Hospital of Central South UniversityChangshaHunan ProvinceChina

Degenerative cervical myelopathy is a common cause of spinal cord injury,with longer symptom duration and higher myelopathy severity indicating a worse *** numerous studies have investigated serological biomarkers for acute spinal cord injury,few studies have explored such biomarkers for diagnosing degenerative cervical *** study involved 30 patients with degenerative cervical myelopathy(51.3±7.3 years old,12 women and 18 men),seven healthy controls(25.7±1.7 years old,one woman and six men),and nine patients with cervical spondylotic radiculopathy(51.9±8.6 years old,three women and six men).Analysis of blood samples from the three groups showed clear differences in transcriptomic *** analysis identified 128 differentially expressed genes that were enriched in patients with neurological *** least absolute shrinkage and selection operator analysis,we constructed a five-gene model(TBCD,TPM2,PNKD,EIF4G2,and AP5Z1)to diagnose degenerative cervical myelopathy with an accuracy of 93.5%.One-gene models(TCAP and SDHA)identified mild and severe degenerative cervical myelopathy with accuracies of 83.3%and 76.7%,*** of two immune cell types(memory B cells and memory-activated CD4^(+)T cells)predicted levels of lesions in degenerative cervical myelopathy with 80%*** results suggest that peripheral blood RNA biomarkers could be used to predict lesion severity in degenerative cervical myelopathy.

关键词： biomarkers candidate genes degenerative cervical myelopathy gene expression analysis immune cell types neurological disabilities peripheral blood RNA profiles spinal cord injury

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导线脱冰与风偏相互影响研究

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华中科技大学学报（自然科学版） 2016年第9期44卷 83-88页

作者：李黎杨斌徐宁波李林华中科技大学土木工程与力学学院湖北武汉430074 华中科技大学控制结构湖北省重点实验室湖北武汉430074 中国能源建设集团云南省电力设计院有限公司云南昆明650051

采用有限元数值模拟方法研究导线脱冰与风偏问题.首先介绍了计算模型和荷载的取值;然后研究了脱冰荷载与风荷载共同作用下输电线脱冰跳跃规律与风偏规律,得出脱冰档导线跨中点最大竖向位移在导线风偏脱冰同时作用达到最大,风荷载对导线... 详细信息

采用有限元数值模拟方法研究导线脱冰与风偏问题.首先介绍了计算模型和荷载的取值;然后研究了脱冰荷载与风荷载共同作用下输电线脱冰跳跃规律与风偏规律,得出脱冰档导线跨中点最大竖向位移在导线风偏脱冰同时作用达到最大,风荷载对导线脱冰跳跃高度影响较小,而脱冰档最大横向摆幅发生在导线先风偏再脱冰情况下,且脱冰时刻应为导线横向位移达最大时刻,此外脉动风作用下导线横向摆幅较静风荷载作用下明显增大;最后研究脉动风荷载作用下不同参数条件的导线脱冰横摆规律,提出的导线脱冰横向摆幅简化计算公式可作为线路和杆塔设计的参考依据.

关键词：输电线路脱冰风偏横摆公式数值模拟

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多比特概率幅编码的量子衍生粒子群优化算法

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控制与决策 2015年第11期30卷 2041-2047页

作者：李盼池李滨旭东北石油大学计算机与信息技术学院黑龙江大庆163318

为了提高粒子群算法的优化能力,提出一种新的量子衍生粒子群优化算法.该方法采用多比特量子系统的基态概率幅对粒子编码,基于自身最优粒子和全局最优粒子确定旋转角度,采用基于张量积构造的多比特量子旋转门实施粒子的更新.在每步迭代中... 详细信息

为了提高粒子群算法的优化能力,提出一种新的量子衍生粒子群优化算法.该方法采用多比特量子系统的基态概率幅对粒子编码,基于自身最优粒子和全局最优粒子确定旋转角度,采用基于张量积构造的多比特量子旋转门实施粒子的更新.在每步迭代中,只需更新粒子的一个量子比特相位,即可更新该粒子上的所有概率幅.标准函数极值优化的实验结果表明,所提出算法的单步迭代时间较长,但优化能力较同类算法有大幅度提高.

关键词：量子计算粒子群优化多比特概率幅编码算法设计

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Lenalidomide regulates the CCL21/CCR7/ERK1/2 axis to inhibit migration and proliferation in diffuse large B-cell lymphoma

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Oncology Research 2025年第1期33卷 199-212页

作者： WEN YANG bin TANG DAN xu WENXIU YANG Department of Pathology Guizhou Medical UniversityThe Affiliated Hospital of Guizhou Medical UniversityGuiyang550004China

Background:The prognostic significance of the chemokine receptor CCR7 in diffuse large B-cell lymphoma(DLBCL)has been reported ***,the detailed mechanisms of CCR7 in DLBCL,particularly regarding its interaction with lenalidomide treatment,are not fully ***:Our study utilized bioinformatics approaches to identify hub genes in SU-DHL-2 cell lines treated with lenalidomide compared to control *** data and clinical information from 122 patients with DLBCL were analyzed to assess the correlation of CCR7 and p-ERK1/2 expression with the prognosis of ***,in vitro and in vivo experiments were conducted to clarify the role of CCR7 in the response of DLBCL to lenalidomide ***:Our bioinformatics analysis pinpointed CCR7 as a hub gene in the context of lenalidomide treatment in ***,31.14%and 36.0%(44/122)of DLBCL cases showed positive expression for CCR7 and ERK1/2 respectively,establishing them as independent prognostic factors for adverse outcomes in DLBCL via multivariate Cox regression ***,our studies demonstrated that the external application of the protein CCL21 promoted proliferation,migration,invasion,and activation of the ERK1/2 pathway in SU-DHL-2 and OCI-LY3 cell lines with high levels of CCR7 *** effect was mitigated by CCR7 silencing through siRNA,application of ERK inhibitors,or lenalidomide *** vivo experiments reinforced the efficacy of lenalidomide,significantly reducing tumor growth rate,tumor mass,serum total LDH levels,and expression of CCR7 and p-ERK1/2 in a SUDHL-2 xenograft model in nude mice(plidomide in DLBCL treatment.

关键词： CCR7 CCL21 ERK1/2 Lenalidomide Diffuse large B-cell lymphoma(DLBCL)

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Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis

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Neural Regeneration Research 2025年第2期20卷 354-365页

作者： li xu Huiming xu Changyong Tang Department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,experimental models of neuromyelitis optica spectrum disorders are essential for exploring its pathogenesis and in screening for therapeutic *** most patients with neuromyelitis optica spectrum disorders are seropositive for IgG autoantibodies against aquaporin-4,which is highly expressed on the membrane of astrocyte endfeet,most current experimental models are based on aquaporin-4-IgG that initially targets *** experimental models have successfully simulated many pathological features of neuromyelitis optica spectrum disorders,such as aquaporin-4 loss,astrocytopathy,granulocyte and macrophage infiltration,complement activation,demyelination,and neuronal loss;however,they do not fully capture the pathological process of human neuromyelitis optica spectrum *** this review,we summarize the currently known pathogenic mechanisms and the development of associated experimental models in vitro,ex vivo,and in vivo for neuromyelitis optica spectrum disorders,suggest potential pathogenic mechanisms for further investigation,and provide guidance on experimental model *** addition,this review summarizes the latest information on pathologies and therapies for neuromyelitis optica spectrum disorders based on experimental models of aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders,offering further therapeutic targets and a theoretical basis for clinical trials.

关键词： aquaporin-4 experimental model neuromyelitis optica spectrum disorder pathogenesis

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A NEW METHOD UTIliZED TO DETECT DNA SINGLE STRAND BREAK(NICK-TRANSLATION)

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Chinese Science Bulletin 1989年第13期34卷 1130-1133页

作者：刘杰杨胜利胥彬 Shanghai Institute of Materia Medica Academia Sinica

It is often needed to detect the DNA single strand break in biological studies. The four most frequently used methods are alkaline elution, alkaline sucrose gradient sedimentation, hydroxyapatite chromatography and nu... 详细信息

关键词： DNA single strand break nick-translation 10-hydroxyeamptothecin

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