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Optoelectronics Letters 2006年第3期2卷 182-185页

作者： CHEN da LI qing-shan wang Jing-jing ZHENG Xue-gang College of Physics and Engineering Qufu Normal University Qufu 273165 China

Un-hydrogenated Diamond-like Carbon （DLC） films were prepared by pulsed laser deposition technique at different substrate temperature. The Raman spectra, the absorption and the photoluminescence spectra were measured. The dependence of structure and phetoluminescence properties on deposition temperature were studied in detail. The experimental results indicate that the sp^2 sites form small clus ters that consist of both olefinic chains and aromatic ring groups within the sp^3 matrix. With raising deposition temperature,the optical band gaps increase from 1.87 to 2.85 eV. The main band of photoluminescence centered at around 700nm shifts to short wavelength, and the intensity of this band increases. The photoluminescence can be attributed to carrier localization within an increasing sp^2 clusters. It was clarified that the DLC films are ordered with increasing deposition temperature.

关键词：碳薄膜光致发光金刚石脉冲激光沉积作用光谱

Effect of pyrite content on chalcopyrite flotation under different regrinding conditions

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 49-57页

作者： Zejun wang qing Shi Guofan Zhang Yuxuan Zhu Binbin Li School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources Central South UniversityChangsha 410083China

This study aimed to investigate the effect of varying pyrite(Py)content on copper(Cu)in the presence of different regrinding conditions,which were altered using different types of grinding media:iron,ceramic balls,and their mixture,followed by flotation in the cleaner *** flotation performance of rough Cu concentrate can be improved by changing the regrinding conditions based on the Py *** electron microscopy,X-ray spectrometry,ethylenediaminetetraacetic acid disodium salt extraction,and X-ray photoelectron spectroscopy studies illustrated that when the Py content was high,the use of iron media in regrinding promoted the generation of hydrophilic Fe OOH on the surface of Py and improved the Cu *** ceramic medium with a low Py content prevented excessive Fe OOH from covering the surface of chalcopyrite(Cpy).Electrochemical studies further showed that the galvanic corrosion current of Cpy-Py increased with the addition of Py and became stronger with the participation of iron media.

关键词： chalcopyrite regrinding media pyrite galvanic corrosion flotation

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睑缘炎相关角结膜病变的诊断和治疗研究进展

国际眼科杂志 2018年第6期18卷 1043-1046页

作者：刘又言徐小凤王宁王大庆川北医学院附属医院眼科中国四川省南充市637000

睑缘炎相关角结膜病变(blepharokeratoconjunctivitis),简称为BKC,是指一类继发于睑缘炎的慢性角结膜炎性病变^([1]),在临床上是一类常见的疾病,同时也是一类容易被误诊、漏诊的疾病,导致延误治疗。病情迁延不愈或不合理的治疗可造成患... 详细信息

睑缘炎相关角结膜病变(blepharokeratoconjunctivitis),简称为BKC,是指一类继发于睑缘炎的慢性角结膜炎性病变^([1]),在临床上是一类常见的疾病,同时也是一类容易被误诊、漏诊的疾病,导致延误治疗。病情迁延不愈或不合理的治疗可造成患者不可逆的视功能损害。近年来,随着人们对眼表疾病的认识不断加深,对BKC的重视度越来越高,临床上对其诊治进行了大量的探讨,但目前还未形成统一的诊治标准。针对现状,查阅相关文献,本文对BKC的诊断和治疗做一综述。

关键词：睑缘炎相关角结膜病变诊断治疗

data release of the LAMOST pilot survey

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Research in Astronomy and Astrophysics 2012年第9期12卷 1243-1246页

作者： A-Li Luo Hao-Tong Zhang Yong-Heng Zhao Gang Zhao Xiang-Qun Cui Guo-Ping Li Yao-Quan Chu Jian-Rong Shi Gang wang Jian-Nan Zhang Zhong-Rui Bai Xiao-Yan Chen Feng-Fei wang Yan-Xin Guo Jian-Jun Chen Bing Du Xiao Kong Ya-Juan Lei Yin-Bi Li Yi-Han Song Yue Wu Yan-Xia Zhang Xin-Lin Zhou Fang Zuo Peng Du Lin He Wen Hou Yi-Qiao Dong Jian Li Guang-Wei Li Shuang Li Jing Song Yuan Tian Meng-Xin wang Yong-Hui Hou Zhi-Ying Huo Hong-Zhuan Hu Ning-Sheng Hu Zhong-Wen Hu Lei Jia Fang-Hua Jiang Xiang Jiang Zi-Bo Jiang Ge Jin Ai-Hua Li Qi Li Yin-Dun Mao Zheng-Hong Tang qing-Sheng Tao Liang-Ping Tu da-qing wang dan wang Jian-Ping wang Lei wang Shou-Guan wang Shu-qing wang Ya-Nan wang You wang Yue-Fei wang Ming-Zhi Wei Xiang-Xiang Xue Xiao-Zheng Xing Ling-Zhe Xu Xin-Qi Xu Yan Xu De-Hua Yang Shi-Hai Yang Zheng-Qiu Yao Yong Yu Hui Yuan Chao Zhai En-Peng Zhang Jing Zhang Li-Ping Zhang WeiZhang Yong Zhang Zhen-Chao Zhang Ming Zhao Fang Zhou Yong-Tian Zhu Jie Zhu Si-Cheng Zou National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China lal @ lamost o rg Nanjing Institute of Astronomical Optics and Technology National Astronomical ObservatoriesChinese Academy of Sciences Nanjing 210042 China University of Science and Technologyof China Hefei 230026 China Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Institute of Architecture Design and Research Chinese Academy of Sciences Beijing 100190China

This paper describes the data release of the LAMOST pilot survey, which includes data reduction, calibration, spectral analysis, data products and data access. The accuracy of the released data and the information about the FITS headers of spectra are also introduced. The released data set includes 319 000 spectra and a catalog of these objects.

关键词： techniques: spectroscopic survey — data reduction — data release

Characteristic changes in astrocyte properties during astrocyte-to-neuron conversion induced by NeuroD1/Ascl1/Dlx2

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Neural Regeneration Research 2025年第6期20卷 1801-1815页

作者： qing He Zhen wang Yuchen wang Mengjie Zhu Zhile Liang Kanghong Zhang Yuge Xu Gong Chen GHM Institute of CNS Regeneration Jinan UniversityGuangzhouGuangdong ProvinceChina

Direct in vivo conversion of astrocytes into functional new neurons induced by neural transcription factors has been recognized as a potential new therapeutic intervention for neural injury and degenerative disorders. However, a few recent studies have claimed that neural transcription factors cannot convert astrocytes into neurons, attributing the converted neurons to pre-existing neurons mis-expressing transgenes. In this study, we overexpressed three distinct neural transcription factors––NeuroD1, Ascl1, and Dlx2––in reactive astrocytes in mouse cortices subjected to stab injury, resulting in a series of significant changes in astrocyte properties. Initially, the three neural transcription factors were exclusively expressed in the nuclei of astrocytes. Over time, however, these astrocytes gradually adopted neuronal morphology, and the neural transcription factors was gradually observed in the nuclei of neuron-like cells instead of astrocytes. Furthermore,we noted that transcription factor-infected astrocytes showed a progressive decrease in the expression of astrocytic markers AQP4(astrocyte endfeet signal), CX43(gap junction signal), and S100β. Importantly, none of these changes could be attributed to transgene leakage into preexisting neurons. Therefore, our findings suggest that neural transcription factors such as NeuroD1, Ascl1, and Dlx2 can effectively convert reactive astrocytes into neurons in the adult mammalian brain.

关键词： aquaporin-4 Ascl1 astrocyte cortex Dlx2 gap junction glia-to-neuron conversion neural regeneration NeuroD1 reprogramming

成纤维活化蛋白在眼睑基底细胞癌相关成纤维细胞中的表达研究

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国际眼科杂志 2021年第8期21卷 1345-1350页

作者：周金蕙王宁母强元刘朱王大庆川北医学院附属医院眼科中国四川省南充市637000 川北医学院眼视光学系中国四川省南充市637000 中国四川省遂宁市中心医院眼科 629000

目的:通过培养、分离、纯化、鉴定眼睑基底细胞癌相关成纤维细胞(CAFs)及正常眼睑皮肤成纤维细胞(NFs),将两种成纤维细胞的生物学特性和成纤维活化蛋白(FAP)表达情况进行对比研究,以进一步探究FAP以及CAFs在眼睑基底细胞癌发病及其发展... 详细信息

目的:通过培养、分离、纯化、鉴定眼睑基底细胞癌相关成纤维细胞(CAFs)及正常眼睑皮肤成纤维细胞(NFs),将两种成纤维细胞的生物学特性和成纤维活化蛋白(FAP)表达情况进行对比研究,以进一步探究FAP以及CAFs在眼睑基底细胞癌发病及其发展中的作用及意义。方法:将眼睑基底细胞癌及眼睑正常皮肤组织块贴壁培养获得原代CAFs及NFs,于倒置相差显微镜下观察纯化的两种细胞第3代的细胞形态并用细胞免疫化学染色(SP法)鉴定两种细胞;MTT法检测细胞生长增殖活力;通过RT-qPCR、Western Blot分别检测其FAP mRNA、蛋白在两种细胞中的表达差异。结果:眼睑CAFs呈长梭形或纺锤形,胞质突明显减少,而胞浆内具有较多颗粒,细胞体积差异明显,排列紊乱且密集,丧失接触抑制,存在明显的重叠生长现象;NFs呈长梭形,但胞浆内颗粒少见,细胞体积较均一,放射状排列,存在接触抑制,未见重叠生长。眼睑CAFs的增殖速度明显快于NFs。RT-qPCR法检测眼睑CAFs中FAP mRNA相对于内参的表达量为3.672±0.221,明显高于眼睑NFs中的含量1.034±0.024(P<0.05)。Western Blot法检测两种细胞中FAP蛋白表达水平发现,FAP在眼睑CAFs中高表达,而眼睑NFs中几乎不表达(P<0.05)。结论:眼睑CAFs与眼睑NFs在形态结构、生长增殖、生长因子表达等生物学特征方面发生了显著改变,提示肿瘤微环境随眼睑基底细胞癌的发生发展相应地发生了一些变化,进而诱导NFs生物学特性和功能发生改变,最终转变为CAFs。此外,眼睑CAFs较NFs高表达分泌FAP,表明肿瘤细胞微环境中FAP可能参与肿瘤的发生发展,与眼睑基底细胞癌浸润性生长有一定关系。

关键词：成纤维活化蛋白眼睑基底细胞癌癌相关成纤维细胞正常成纤维细胞

Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-qing Qiao Guo Hui Bojing Sun Dongfang Hou Meidi wang Xueqian Wu Tao Wu Dong-Sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： Heterojunctions LSPR Photocatalyst Phase junction Schottky junction Photothermal effect

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眼睑基底细胞癌与其相关基因的研究进展

国际眼科杂志 2007年第4期7卷 1131-1134页

作者：王大庆罗清礼川北医学院附属医院眼科四川大学华西医院眼科中国四川省成都市2610041

眼睑基底细胞癌(basal cell carcinoma,BCC)是眼睑恶性肿瘤中最常见的一种,虽然其发病缓慢,恶性程度和转移性较低,但发病人数的逐年增多,已引起人们高度重视。研究显示,多种癌基因的异常表达在眼睑BCC的发生发展过程中有着重要作用。研... 详细信息

眼睑基底细胞癌(basal cell carcinoma,BCC)是眼睑恶性肿瘤中最常见的一种,虽然其发病缓慢,恶性程度和转移性较低,但发病人数的逐年增多,已引起人们高度重视。研究显示,多种癌基因的异常表达在眼睑BCC的发生发展过程中有着重要作用。研究癌相关基因在BCC发生、发展及转移机制中的作用,对于揭示BCC的生物学行为与探索有效的防治方法具有重要意义。本文复习文献,对与眼睑基底细胞癌有关的基因作一简要综述。

关键词：眼睑基底细胞癌基因

急性重症胰腺炎大鼠胆道动力学变化及其对机体的影响

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世界华人消化杂志 2016年第16期24卷 2525-2530页

作者：周迈王达庆焦岗军邓五一钟朝辉民航总医院普外科北京市100123 北京大学人民医院普外科北京市100044

目的:通过建立急性胰腺炎(severe acute pancreatitis,SAP)模型,观察急性胰腺炎大鼠胆道动力的变化及其对机体的影响.方法:采用胰管注射牛磺胆酸钠制作大鼠S A P模型,28只♂S D大鼠随机分为实验组(E组,n=14)和对照组(C组,n=14),另取14只... 详细信息

目的:通过建立急性胰腺炎(severe acute pancreatitis,SAP)模型,观察急性胰腺炎大鼠胆道动力的变化及其对机体的影响.方法:采用胰管注射牛磺胆酸钠制作大鼠S A P模型,28只♂S D大鼠随机分为实验组(E组,n=14)和对照组(C组,n=14),另取14只♂S D大鼠仅胰管注射盐水作为假手术组(SO group).实验组术前1 h腹腔注射山莨菪碱(anisodamine,Ani)20 mg/kg,对照组给予同体积生理盐水作为对照.分别在24 h后,进行^(99m)锝-二乙基丁酰苯胺基亚氨二醋酸(^(99m)Tc-dimethyliminodiacetic acid,^(99m)TcEHIda)肝胆动态功能显像定量分析;检测血浆肿瘤坏死因子α(tumor necrosis factor-α,TNF-α)、白介素1β(interleukin-1β,IL-1β)、内毒素(endotoxin,ET)的水平;大鼠十二指肠组织、胆囊组织、血浆中胆囊收缩素8(cholecystokinin 8,CCK8)水平,以及比较腹腔脏器细菌移位率.结果:十二指肠显影时间(duodenal appearance time,daT),对照组大于实验组及假手术组(56.73 s±12.34 s vs 48.44 s±11.12 s、29.52 s±11.83 s),十二指肠组织中CCK8对照组显著低于实验组和假手术组(5.24 pg/mL±0.56 pg/mL vs 5.81 pg/mL±0.45 pg/mL、6.25 pg/mL±0.53 pg/mL,P<0.05).对照组、实验组TNF-α,IL-1β,ET水平,在术后24 h明显增高(P<0.05),实验组TNF-α,ET水平均低于对照组(ET:0.148 EU/mL±0.032 EU/mL vs 0.320 EU/mL±0026 EU/mL,P=0.040,TNF-α:89.24 pg/mL±34.45 pg/mL vs 123.18pg/mL±41.24 pg/mL,P=0.049).腹腔脏器细菌移位率,对照组大于实验组及假手术组(0.714%vs 0.573%、0.143%,P<0.05)结论:急性重症胰腺炎导致大鼠胆道动力下降,并可能因此加重肠道的细菌移位.

关键词：胆道动力急性胰腺炎核素显像

氧载体对绿色产色链霉菌发酵生产阿维拉霉素的影响

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食品与机械 2018年第2期34卷 42-45,128页

作者：章梅宋元达刘青王友玲吴翰山东理工大学农业工程与食品科学学院山东淄博255000 山东省高校农产品功能化技术重点实验室山东淄博255000

为了提高阿维拉霉素发酵液中氧传递效率,改善发酵液中溶氧水平,增加阿维拉霉素的产量,研究各种氧载体对发酵过程中阿维拉霉素的合成和绿色产色链霉菌的影响。试验结果显示,吐温80作为氧载体的效果最好,能有效地提高生物量和单位菌体的... 详细信息

为了提高阿维拉霉素发酵液中氧传递效率,改善发酵液中溶氧水平,增加阿维拉霉素的产量,研究各种氧载体对发酵过程中阿维拉霉素的合成和绿色产色链霉菌的影响。试验结果显示,吐温80作为氧载体的效果最好,能有效地提高生物量和单位菌体的阿维拉霉素的产率。在发酵开始的8h,添加3g/L吐温80,生物量达到了11.82g/L,阿维拉霉素效价达到了340mg/L,与对照组比较,分别提高了20.63%和21.42%,研究表明氧载体吐温80能通过提高生物量和得率系数来提高阿维拉霉素的产量。

关键词：绿色产色链霉菌阿维拉霉素氧载体发酵