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广珠城轨对珠海城市发展的影响

特区经济 2011年第4期 28-29页

作者：许赛男张婷婷张燕华南理工大学工商管理学院广东广州510640 中山大学管理学院广东广州510006

广珠城轨连接了珠江三角洲的广州、佛山、中山、江门以及珠海五大城市,它的开通为处于沿线重要位置的珠海带来新的机遇。本文将在分析珠海城市发展现状的基础上,探讨广珠城轨对珠海未来城市发展带来的影响。

关键词：广珠城轨经济特区城市发展

Bone Marrow-Derived Mesenchymal Stem Cells inhibits hepatic cell apoptosis after acute liver injury

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Bone Marrow-Derived Mesenchymal Stem Cells inhibits hepatic ...

Nitric Oxide Involved in Pinus thunbergii Reponse to the Invasion of Bursaphelenchus xylophilus,and NOS Mediated the Generation of NO

中华医学会第十三次全国感染病学术会议

作者： yijing cai zhuo-lin zou li-yuan liu si chen yi chen sai-nan zhang yong-ping chen Department of Infection and Liver Diseases Liver Research CenterThe First Affiliated Hospital of Wenzhou Medical University

Background Previous studies have showed that mesenchymal stem ceils(MSCs)have protective effect on hepatic cell apoptosis after acute liver injury(ALI).Objective To validate the protection effect of bone marrow-derived mesenchymal stem cells(BMSCs)transplantation on acute liver injury(ALI)rats and explore the potential *** and Methods BMSCs were extracted from rat bone marrow,cultured and expansion in vitro,and identified by flow *** model with acute liver injury was established by emplo-

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Nitric Oxide Involved in Pinus thunbergii Reponse to the Inv...

CHFR和mp53基因编码蛋白在胃癌组织中的表达及临床病理学意义

第三届全国生物入侵大会

作者： Lu-zhen Yu,Xiao-qin Wu~*,Jian-ren Ye,sai-nan zhang nanjing Forestry University,The Key Laboratory of the Pest Prevention and Control of the Jiangsu Province,nanjing 210037,China

Pine wilt disease caused by Bursaphelenchus xylophilus has caused great damage to forest resource and threantened ecological environment in China in the past ***,the role of NO(nitric oxide,NO) and ROS(reactive oxygen... 详细信息

关键词： Bursaphelenchus xylophilus Pinus thunbergii Nitric oxide Hydrogen peroxide Nitric oxide synthase Nitrate reductase

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世界华人消化杂志 2007年第14期15卷 1622-1627页

作者：高余佳辛彦张赛楠张家华吴东瑛辽宁省肿瘤医院内六科辽宁省沈阳市110042 中国医科大学附属一院肿瘤研究所第四研究室辽宁省沈阳市110001

目的:观察CHFR和P53蛋白的表达与胃癌临床病理学特征的关系,探讨其在胃癌发生发展过程中的作用及相关的分子机制.方法:利用组织芯片制作仪(美国),构建成5个包括151例胃癌及101例与其配对的正常胃黏膜、肠化生或不典型增生的组织芯片蜡块... 详细信息

目的:观察CHFR和P53蛋白的表达与胃癌临床病理学特征的关系,探讨其在胃癌发生发展过程中的作用及相关的分子机制.方法:利用组织芯片制作仪(美国),构建成5个包括151例胃癌及101例与其配对的正常胃黏膜、肠化生或不典型增生的组织芯片蜡块.采用Envision免疫组化二步法检测151例胃癌及101例配对癌旁胃黏膜组织中CHFR蛋白和P53蛋白的表达.结果:CHFR蛋白在非癌胃黏膜组织中阳性表达率为85.25%(52/61),在胃癌组织中阳性表达率显著降低(49.67%,75/151,P0.05).结论:有丝分裂前期检查点CHFR基因表达下调或缺失在胃癌中是频发事件.可能参与胃癌的发生,其与女性、弥漫浸润型胃癌发生发展的关系可能更为密切.

关键词： CHFR基因突变型p53 胃癌免疫组化

LPS pretreatment ameliorates D-aminegalactose/lipopolysaccharideinduced liver injury in Rat

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LPS pretreatment ameliorates D-aminegalactose/lipopolysaccha...

矿井MIMO-OFDM通信系统信道的建模与仿真

中华医学会第十三次全国感染病学术会议

作者： jinzhong dong li-ping wang sai-nan zhang ke-qin shi shao-long chen chun-wei shi yu-qun wang su-ting cao zhuo lin yong-ping chen ming-qin lu Department of Infection Disease The First Affiliated Hospital of Wenzhou Medical University

Acute liver failure(ALF)remains an extremely poor prognosis and high mortality;with no effective *** endotoxin tolerance(ET)phenotype is characterized with decreased inflammation,has been reported to exhibit protective activities in several sepsis *** now investigated the effects and underlying mechanisms of ET on D-galactosamine(D-GaIN)/lipopolysaccharide(LPS)-induced ALF in *** model was induced by daily intraperitoneal injection of 0.1 mg/kg of LPS for five consecutive days before D-Galn/LPS injec-

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大连民族大学学报 2018年第3期20卷 227-233页

作者：刘赛男李晖张蕊沈阳工业大学信息科学与工程学院辽宁沈阳110870

在已有矿井MIMO信道模型的基础上,提出了一种基于Nakagami衰落的矿井MIMO空间相关信道建模方法。基于Nakagami衰落的非相关MIMO信道,通过计算收发天线间的空间相关性生成MIMO空间相关信道。对所建信道模型的空间相关性及信道容量进行仿... 详细信息

在已有矿井MIMO信道模型的基础上,提出了一种基于Nakagami衰落的矿井MIMO空间相关信道建模方法。基于Nakagami衰落的非相关MIMO信道,通过计算收发天线间的空间相关性生成MIMO空间相关信道。对所建信道模型的空间相关性及信道容量进行仿真分析。仿真结果证明:MIMO信道的空间相关性随收发端天线单元间距的增大而减小;MIMO信道容量与信道空间相关性以及收发端天线数目有关;减小信道的空间相关性或者增加天线数目,可增加MIMO信道容量。基于Nakagami衰落的矿井MIMO空间相关信道模型适用于矿井无线通信系统。

关键词：矿井通信 MIMO信道建模 Nakagami衰落空间相关信道容量

Boosting charge extraction and efficiency of inverted perovskite solar cells through coordinating group modification at the buffer layer/cathode interface

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nano Research 2025年第1期18卷 415-423页

作者： Zhiqing Liang Ziqiu Ren Ziyu Wang nan Yan Ling Li Bo zhang Yanlin Song College of Chemistry Zhengzhou UniversityZhengzhou 450052China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of Sciences(ICCAS)Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyNational Laboratory for Molecular Sciences(BNLMS)Beijing 100190China

In inverted perovskite solar cells (PSCs),effective modification of the interface between the metalcathode and electron transport layer (ETL) is crucial forachieving high performance and stability. Herein, sulfonatedbathocuproine, commonly known as disodium bathocuproinedisulfonate (BCDS), was employed as a cathode buffer layerto address the interfacial issues at the [6,6]-phenyl-C61-butyricacid methyl ester (PCBM)/Ag interface. BCDS possesses theability to form coordinate bonds with Ag electrodes. Theutilization of the BCDS buffer layer enhanced the chargeextraction capability at the cathode interface whilesimultaneously achieving interfacial defect passivation,improving interfacial contact and increasing the built-in electricfield. Consequently, a power conversion efficiency (PCE) of25.06% was achieved. Furthermore, owing to the excellent filmforminguniformity of BCDS on PCBM, the stability of thedevice was also improved. After storage in dry air for morethan 2000 h, the device maintained 96% of its initial efficiency. This work underscores the remarkable potential of tailoringcoordination groups to enhance charge extraction efficiency at the ETL-cathode interface, unveiling a promising newfrontier in buffer layer development and performance optimization strategies for PSCs.

关键词： perovskite solar cells buffer layer bathocuproine disulfonate coordination group modification electron transport layer(ETL)-cathode interface

Preparation of silver nanoparticles through the reduction of straw-extracted lignin and its antibacterial hydrogel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 504-514页

作者： Lou zhang Shuo Li Fu Tang Jingkai zhang Yuetong Kang Hean zhang Lidong Li State Key Laboratory for Advanced Metals and Materials School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Silver nanoparticles(Ag NPs)have attracted attention in the field of biomaterials due to their excellent antibacterial ***,the reducing and stabilizing agents used for the chemical reduction of Ag NPs are usually toxic and may cause water *** this work,Ag NPs(31.2 nm in diameter)were prepared using the extract of straw,an agricultural waste,as the reducing and stabilizing *** analysis revealed that the straw extract contained lignin,the structure of which possesses phenolic hydroxyl and methoxy groups that facilitate the reduction of silver salts into Ag *** surfaces of Ag NPs were negatively charged due to the encapsulation of a thin layer of lignin molecules that prevented their *** the prepared Ag NPs were added to the precursor solution of acrylamide,free radical polymerization was triggered without the need for extra heating or light irradiation,resulting in the rapid formation of an Ag NP-polyacrylamide composite *** inhibition zone test proved that the composite hydrogel possessed excellent antibacterial ability due to the presence of Ag *** prepared hydrogel may have potential applications in the fabrication of biomedical materials,such as antibacterial dressings.

关键词： silver nanoparticles hydrogel straw extraction antibacterial

Depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 335-345页

作者： Feng zhang Chenyang zhang Linlin Wu Wei Sun Hongliang zhang Jianhua Chen Yong Pei Songjiang Li Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral ResourcesSchool of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China State Key Laboratory of Mineral Processing Beijing General Research Institute of Mining&MetallurgyBeijing 100160China Hunan Provincial Key Laboratory of Micro&nano Materials Interfaces Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China Department of Chemistry Xiangtan UniversityXiangtan 411105China China Railway Resource Group Co.Ltd Beijing 102300China

The depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite still lacked in-depth ***,the depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite was further systematically investigated with experiments and density functional theory(DFT)*** X-ray photoelectric spectroscopy(XPS)results,DFT calculation results,and frontier molecular orbital analysis indicated that sulfite ions were difficult to be adsorbed on sphalerite surface,suggesting that sulfite ions achieved depression effects on sphalerite through other non-adsorption ***,the oxygen content in the surface of sphalerite treated with sulfite ions in creased,which enhanced the hydrophilicity of the sphalerite and further increased the difference in hydrophilicity between sphalerite and ***,sulfite ions were chelated with lead ions to form PbSO_(3)in *** hydrophilic PbSO_(3)was more easily adsorbed on sphalerite than *** interaction between sulfite ions and lead ions could effectively inhibit the activation of *** addition the UV spectrum showed that after adding sulfite ions,the peak of perxanthate in the sphalerite treated xanthate solution was significantly stronger than that in the galena with xanthate solution,indicating that xanthate interacted more readily with sulfite ions and oxygen mo lecules within the sphalerite system,leading to the formation of ***,sulfite ions hardly depressed the flotation of ga lena and could promote the flotation of galena to some *** study deepened the understanding of the depression mechanism o sulfite ions on sphalerite and Pb^(2+)activated sphalerite.

关键词： sphalerite galena sulfite ion density functional theory depression mechanism