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独山县水稻人工直播示范成效显著

耕作与栽培 2014年第2期34卷 55-56页

作者：刘玉全张业黔易成惠贵州省独山县农村工作局贵州独山558200

通过对独山县水稻人工直播示范结果与传统栽培相比较,得出水稻人工直播比传统栽培节本226.6元/667m2,增收384.1元/667m2,取得了良好的效果。

关键词：独山水稻人工直播成效

腺病毒介导反义血管紧张素Ⅱ1型受体cDNA对人肺动脉平滑肌细胞生物学行为的影响

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中华结核和呼吸杂志 2005年第4期28卷 263-267页

作者：涂明利王汉琴雷怀定罗国仕刘先军刘为舜熊畅刘玉全任思群郧阳医学院附属太和医院呼吸内科湖北十堰442000 郧阳医学院解剖学教研室

目的探讨腺病毒介导的反义血管紧张素Ⅱ(AngⅡ)1型受体(AT1R)cDNA转染对培养的人肺动脉平滑肌细胞(PASMC)迁移、增殖和凋亡的影响。方法构建重组反义人AT1R腺病毒(AdCMVahAT1)和表达β半乳糖苷酶的对照腺病毒载体AdCMVLacZ,将培养的PASM... 详细信息

目的探讨腺病毒介导的反义血管紧张素Ⅱ(AngⅡ)1型受体(AT1R)cDNA转染对培养的人肺动脉平滑肌细胞(PASMC)迁移、增殖和凋亡的影响。方法构建重组反义人AT1R腺病毒(AdCMVahAT1)和表达β半乳糖苷酶的对照腺病毒载体AdCMVLacZ,将培养的PASMC分为DMEM组、AdCMVLacZ组和AdCMVahAT1组,分别给予不同的干预因素干预PASMC,用半定量逆转录聚合酶链反应(RT PCR)和免疫组化及彩色图像分析法检测AT1R的表达情况,并用改良的迁移小室进行细胞迁移实验。又将培养的PASMC分为DMEM组,AngⅡ组,AdCMVLacZ+AngⅡ组和AdCMVahAT1+AngⅡ组,用流式细胞仪检测各组PASMC的增殖指数和凋亡率,绘制DNA合成直方图。结果转染AdCMVahAT1后48h的PASMC,AT1RmRNA明显低于对照组[AT1R/βactin吸光度(A)比值:AdCMVahAT1组为0.48,DMEM组为0.97,AdCMVLacZ组为0.96];AdCMVahAT1组AT1R蛋白表达水平(A值为176.39±21.63)显著低于DMEM组(A值为310.21±29.82)和AdCMVLacZ组(A值为306.45±30.09),差异均有统计学意义(P均<0.01),转染AdCMVahAT1后24h的PASMC迁移距离为(40.93±9.69)μm,显著短于DMEM组的(78.23±11.79)μm和AdCMVLacZ组的(77.80±10.66)μm,差异均有统计学意义(P均<0.01)。给予AngⅡ刺激48h,AngⅡ组PASMC的增殖指数(59.69±3.46)

关键词：血管紧张素Ⅱ1型受体细胞生物学行为逆转录-聚合酶链反应(RT-PCR) 介导反义血管紧张素Ⅱ(AngⅡ) PASMC 肺动脉平滑肌细胞 DMEM 流式细胞仪检测 AT1R cDNA转染 β半乳糖苷酶增殖指数蛋白表达水平 AngⅡ介导腺病毒介导

催化剂的新定义——催化剂用量对催化剂活性影响的研究

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吉林师范大学学报（自然科学版） 2009年第3期30卷 93-96页

作者：任玉荣刘宇权艾亚男贾树勇吉林师范大学化学学院吉林四平136000 中国石油吉林石化公司吉林吉林132022

以对甲苯磺酸催化乙酸丁酯的合成为探针反应,通过考察催化剂用量对催化剂活性的影响,给出催化剂的新定义:催化剂是一种以一定的量参与反应过程、在反应前后无本质改变、能够显著改变化学反应速率、不改变化学反应热力学平衡位置的物质.

关键词：乙酸丁酯对甲苯磺酸催化剂定义

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一种新型压配式腰椎椎间融合器的机械性能

中国组织工程研究 2025年第21期29卷 4492-4498页

作者：李世文于长水刘启王智博刘禹良祁全哈尔滨医科大学附属第一医院黑龙江省哈尔滨市150000

背景:行经皮微创椎间孔腰椎椎间融合置入椎间融合器时,由于入路操作范围狭窄,有牵拉神经根损伤或置入融合器位置不良等风险,为了解决以上问题作者课题组发明了一种新型机械结构可变形压配式cage(Press-fit cage,YP-cage)。目的:对新型... 详细信息

背景:行经皮微创椎间孔腰椎椎间融合置入椎间融合器时,由于入路操作范围狭窄,有牵拉神经根损伤或置入融合器位置不良等风险,为了解决以上问题作者课题组发明了一种新型机械结构可变形压配式cage(Press-fit cage,YP-cage)。目的:对新型腰椎融合器YP-cage的机械强度特性进行初步评估。方法:对不同尺寸9,11,13 mm高度的新型YP-cage(n=9)和聚醚醚酮-cage(n=9)进行了静态轴向压缩实验和静态轴向扭转实验,分别采集力-位移曲线计算屈服位移及载荷、极限载荷位移及刚度,屈服角位移及扭矩、极限载荷角位移扭矩及刚度,并进行对比分析。结果与结论:(1)在静态轴向压缩测试中,YP-cage在3组测试中(9,11,13 mm),其刚度、屈服载荷、极限位移和载荷极限方面均优于聚醚醚酮-cage(P <0.01),但YP-cage的屈服位移小于聚醚醚酮-cage(P <0.05);(2)在静态扭转测试中,除了9 mm组的YP-cage和聚醚醚酮-cage在极限扭转角度上差异无显著性意义,YP-cage在屈服扭矩、屈服扭转角度及极限扭矩均小于聚醚醚酮-cage(P <0.01),而YP-cage扭转刚度在9 mm组和11 mm组大于聚醚醚酮-ccage(P <0.01);(3)结果表明新型压配式机械结构椎间融合器相较于聚醚醚酮材质cage具有更高的抗压强度,但抗扭强度不如聚醚醚酮-cage。

关键词：椎间融合装置经孔椎体间融合术脊柱融合机械性能物理性质

Enhancing anoxic denitrification of low C/N ratio wastewater with novel ZVI composite carriers

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Journal of Environmental Sciences 2022年第2期34卷 180-191页

作者： Yanping Shi Tao liu Hongtao yu Xie quan Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education) School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China

External organic carbon sources are needed to provide electron donors for the denitrification of wastewater with a low COD/NO_(3)^(-)-N(C/N)ratio,increasing the treatment *** economic strategy is to enhance the bioactivity and/or biodiversity of denitrifiers to efficiently utilize organic substances in *** this study,novel zero-valent iron(ZVI)composite carriers were prepared and implemented in a suspended carrier biofilm reactor to enhance the bioactivity and/or biodiversity of *** the influent C/N ratio of 4(COD was 179.5±5.0 mg/L and TN was 44.2±0.8 mg/L),COD and TN removal efficiencies were 85.1%and 66.4%,respectively,in the reactors filled with 3 wt%ZVI composite *** contrast,COD and TN removal efficiencies were 70.4%and 55.3%,respectively,in the reactor filled with conventional high-density polyethylene(HDPE)biofilm *** biofilm formation on the 3 wt%ZVI composite carriers was optimized due to its higher roughness(surface square roughness increased from 76.0 nm to 93.8 nm)and favorable hydrophilicity(water contact angle dropped to 72.5°±1.4°from 94.3°±3.2°)compared with the HDPE biofilm *** addition,heterotrophic denitrifiers,Thauera and Dechloromonas,were enriched,whereas autotrophic denitrifiers,Raoultella and Thiobacillus,exhibited high relative abundance in the biofilm of ZVI composite *** coexistence of heterotrophic denitrifiers and autotrophic denitrifiers on the surface of ZVI composite carriers provided mixotrophic metabolism of denitrification(including heterotrophic and iron-based autotrophic),thereby ensuring effective denitrification for wastewater with a low C/N ratio without external organic carbon source addition.

关键词： ZVI Biofilm carrier Low C/N ratio Integrated floating fixed-film and activated sludge(IFFAS) Denitrification

The breaking of spin symmetry in the single-particle resonances in deformed nuclei

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Nuclear Science and Techniques 2024年第3期35卷 237-245页

作者： Zhen-yu Zheng Shou-Wan Chen quan liu School of Physics and Optoelectronic Engineering Anhui UniversityHefei 230601China

The exploration of spin symmetry (SS) in nuclear physics has been instrumental in identifying atomic nucleus *** this study,we solve the Dirac equation from the relativistic mean field (RMF) in complex momentum *** investigated SS and its breaking in single-particle resonant states within deformed nuclei,with a focus on the illustrative *** was the initial discovery of a resonant spin doublet in a deformed nucleus,with the expectation of the SS approaching the continuum *** increasing single-particle energy,the splitting of the resonant spin doublets widened *** escalating splitting implies diminishing adherence to the SS,indicating a departure from the expected behavior as the energy levels *** also analyzed the width of the resonant states,showing that lower orbital angular momentum resonances possess shorter decay times and that SS is preserved within broad resonant doublets,as opposed to narrow resonant *** the radial density of the upper components for the bound-state and resonant-state doublets,it becomes evident that while SS is well-preserved in the bound states,it deteriorates in the resonant *** impact of nuclear deformation (β_(2)) on SS was examined,demonstrating that an increase in β_(2) resulted in higher energy and width splitting in the resonant spin doublets,which is attributed to increased component ***,the sensitivity of spin doublets to various potential parameters such as surface diffuseness (a),radius (R),and depth (Σ0) is discussed,emphasizing the role of these parameters in *** study provides valuable insights into the behavior of spin doublets in deformed nuclei and their interplay with the nuclear structure,thereby advancing our understanding of SS in the resonance state.

关键词： Spin symmetry Resonant states Deformed nuclei Complex-momentum representation

Lipomatous ependymoma with ZFTA:RELA fusion-positive:A case report

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World Journal of Clinical Cases 2025年第1期13卷 48-55页

作者： Xiao-yu Zhao Juan-Han yu Yi-Hua Wang Yi-Xin liu Lu Xu Lin Fu Ning Yi China Medical University The First Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Department of Pathology The First Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina Anshan Cancer Hospital Anshan 114000Liaoning ProvinceChina

BACKGROUND Ependymoma with lipomatous differentiation is a rare type of *** ZFTA fusion-positive supratentorial ependymoma is a novel tumor type in the 2021 World Health Organization classification of central nervous system *** fusion-positive lipomatous ependymoma has not been reported to *** SUMMARY We reported a case of a 15-year-old Chinese male who had a sudden convulsion lasting approximately six *** resonance imaging showed a round cystic shadow of approximately 1.9 cm×1.5 cm×1.9 cm under the right parieto-occipital *** examination showed characteristic perivascular pseudorosettes and adipose differentiation in the ***-chemical staining showed that the tumor cells were negative for cytokeratin,NeuN,Syn and p53,but positive for GFAP,vimentin and S-100 ***-ficant punctate intracytoplasmic EMA immunoreactivity was *** level of Ki-67 was about 5%.Genetic analysis revealed ZFTA:RELA fusion.A cranio-tomy with total excision of the tumor was *** follow-up time was 36 months,no evidence of disease recurrence was found in magnetic resonance *** Based on these findings,the patient was diagnosed as a ependymoma with ZFTA fusion and lipomatous *** case report provides information on the microscopic morphological features of ependymoma with ZFTA fusion and lipomatous differentiation,which can help pathologists to make a definitive diagnosis of this tumor.

关键词： Ependymoma Lipomatous Molecular classification Supratentorial ZFTA:RELA fusion Case report

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跨孔弹性波CT成像在路基病害诊断中的应用

新疆地质 2007年第2期25卷 221-224页

作者：赵虎李瑞刘钰泉王玲辉成都理工大学信息工程学院四川成都610059 铁二院物探所四川成都610031 成都理工大学能源学院四川成都610059

跨孔地震层析成像(简称CT)法,是利用大量地震波传播时间与其相应的射线在成像单元内所经过的路径以及待求速度的关系建立大型线性方程组,反演出路基下介质的波速,再根据钻孔资料可建立地下地质模型,进而准确定位出路基病害(煤窑采空区... 详细信息

跨孔地震层析成像(简称CT)法,是利用大量地震波传播时间与其相应的射线在成像单元内所经过的路径以及待求速度的关系建立大型线性方程组,反演出路基下介质的波速,再根据钻孔资料可建立地下地质模型,进而准确定位出路基病害(煤窑采空区、岩溶、软弱层等)的位置,为路基的设计提供基础资料.用这种方法对某段铁路路基下存在的煤层、煤窑采空区的分布情况进行勘测,取得了理想的效果.

关键词：地震成像地质病害应用

Double [5]carbohelicene: facile synthesis, chiroptical properties,isomerization study, and lasing application

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Science China Chemistry 2025年第1期 233-240页

作者： Peipei liu Yantong Li Meng-Xiang Wu Hao Kang Xiao-Li Zhao Lin Xu Linlin liu Xiaodong Li Junfeng Fang Zhiwei Fang Ya Cheng Hai-Bo Yang Huakang yu Xueliang Shi State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University School of Physics and Optoelectronics South China University of Technology Institute of Polymer Optoelectronic Materials & Devices State Key Laboratory of Luminescent Materials & Devices South China University of Technology School of Physics and Electronic Science Engineering Research Center of Nanophotonics & Advanced Instrument Ministry of EducationEast China Normal University State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University

Double carbohelicenes have attracted considerable attention due to their aesthetic structures, distinct π-conjugation extension, inherent chirality, and intriguing optical and electronic properties. Herein, the concise de novo synthesis of a new double[5]carbohelicene 1 together with its chiroptical properties, isomerization process and lasing application is presented. 1 was synthesized by a simple protocol involving the formation of a 6,6′-bipentacene as the key intermediate. It is worth noting that1 existed as two diastereomers 1-PP/MM and 1-PM, which were successfully isolated and unambiguously confirmed by Xray crystallography. The optical resolution of the racemic 1-PP/MM was successfully achieved by chiral-phase highperformance liquid chromatography（HPLC）, and 1-PP and 1-MM were characterized by circular dichroism. Interestingly, it was found that 1-PP/MM could be completely isomerized to 1-PM upon heating, and the detailed thermodynamics and kinetics of the isomerization process were systematically investigated. 1-PM exhibited deep-red luminescence with emission maximum at 723 nm and fluorescence quantum yield as high as 32.95%. Consequently, we can showcase the lasing application of 1-PM by doping with epoxy resin to assemble a bottle microlaser spontaneously, which the lasing wavelength is 796.6 nm at a threshold of 0.8 m J cm-2. We believe that our studies, including the facile synthesis methodology, detailed isomerization studies, and lasing application, will shed some light on the design and synthesis of novel carbohelical systems with more functions.

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