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中国煤炭 2018年第4期44卷 138-143页

作者：周昊郭姣姣王宇翔刁珊珊何绪文中国矿业大学(北京)化学与环境工程学院北京市海淀区100083

采集了山西典型矿区的固体废物包括煤矸石、粉煤灰和脱水污泥,将其按不同比例混合后加入到土壤中配置成复合基质,在复合基质上种植白三叶,测定种植前后复合基质的pH值、营养成分以及白三叶的生长状况,在此基础上构建复合基质方案选取的... 详细信息

采集了山西典型矿区的固体废物包括煤矸石、粉煤灰和脱水污泥,将其按不同比例混合后加入到土壤中配置成复合基质,在复合基质上种植白三叶,测定种植前后复合基质的pH值、营养成分以及白三叶的生长状况,在此基础上构建复合基质方案选取的评价指标体系,利用层次分析法对复合基质的配比方案进行评价。研究结果表明,复合基质配比方案的考核总分值依次为G4>G1>G5>G2>G6>G3,其中G4即试验组4是种植白三叶的最佳复合基质配比方案。此方案中白三叶的株高比对照组低23.80%,根长与对照组持平,鲜重根冠比是对照组的1.22倍,发芽率比对照组高8%。

关键词：矿区土壤土壤改良重金属层次分析法

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低温环境下环保型高压断路器的应用研究

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电力系统装备 2024年第2期 27-29页

作者：何亚东马俊岭罗少文刘小虎周旭文国网甘肃省电力公司定西供电公司甘肃兰州730050

研究旨在评估环保型高压断路器在低温环境下的应用性能。文章分析了高压断路器的设计、材料、性能特点及低温环境对其影响,并对ABB环保型高压断路器(使用AirPlus™技术)进行了一系列试验。试验结果显示,在低温条件下,虽然部分性能指标略... 详细信息

研究旨在评估环保型高压断路器在低温环境下的应用性能。文章分析了高压断路器的设计、材料、性能特点及低温环境对其影响,并对ABB环保型高压断路器(使用AirPlus™技术)进行了一系列试验。试验结果显示,在低温条件下,虽然部分性能指标略有变化,但此款环保型高压断路器仍保持了良好的绝缘性能和机械稳定性,证明了其在低温环境下的可靠性和适用性。

关键词：环保型高压断路器低温环境绝缘性能机械稳定性

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Study on the treatment of wastewater containing Cu(II) by D851 ion exchange resin

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DESALINATION AND WATER TREATMENT 2016年第8期57卷 3597-3605页

作者： he, xuwen Fang, Zengqiang Jia, Jianli Ma, Lingshan Li, Yan Chai, Zhen Chen, Xu China Univ Min & Technol Sch Chem & Environm Engn Beijing 100083 Peoples R China

A static adsorption experiment of copper ion was performed with D851 ion exchange resin to determine some optimum treatment parameters. The results of the experiment showed that the enthalpy value of the reaction was positive and the optimum reaction time was 60min, while the optimum pH value and reaction temperature were 5.5 and 35 degrees C, respectively. The adsorption equilibrium density of 0.1g ion exchange resin was between 75 and 100mg/L. With the condition of the hydraulic retention time of 60min, wastewater containing 10mg/L Cu(II) (pH approximate to 5.5) was treated by a dynamic ion exchange column, and the treatment effluent can meet the primary standard of the National Integrated Wastewater Discharge Standard (GB8978-1996). Meanwhile a desorption experiment with ion exchange resin was carried out, which determined that the optimum volume fraction of hydrochloric acid solution was 4% in the desorption solution. The figures of the scanning electron microscope showed that the resin saturated with Cu(II) could be regenerated well under the effect of hydrochloric acid solution, which was consistent with the experimental results.

关键词： Ion exchange resin Wastewater containing Cu(II) Static adsorption Dynamic adsorption Desorption experiment

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含1,3,4-噻(噁)二唑吩嗪-1-甲酰胺类衍生物的合成与杀菌活性

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农药学学报 2021年第2期23卷 287-295页

作者：何敏古景文李司丞向绪稳姜珊崔紫宁亚热带农业生物资源保护与利用国家重点实验室群体微生物研究中心广东省微生物信号与作物病害防控重点实验室植物保护学院华南农业大学广州510642 岭南现代农业科学与技术广东省实验室广州510642

对广泛存在于链霉菌和铜绿假单胞菌中的一种天然活性物质——申嗪霉素进行了结构修饰,合成了一系列高活性的含1,3,4-噻(噁)二唑的申嗪霉素衍生物I1~I28。杀菌活性测定结果表明:所有目标化合物对禾谷镰刀菌具有较好的杀菌活性,均明显优... 详细信息

对广泛存在于链霉菌和铜绿假单胞菌中的一种天然活性物质——申嗪霉素进行了结构修饰,合成了一系列高活性的含1,3,4-噻(噁)二唑的申嗪霉素衍生物I1~I28。杀菌活性测定结果表明:所有目标化合物对禾谷镰刀菌具有较好的杀菌活性,均明显优于母体申嗪霉素。离体杀菌活性测定结果显示,化合物I_(8)(EC_(50)=33.25μg/mL)和化合物I22(EC_(50)=46.52μg/mL)对禾谷镰刀菌的杀菌活性是申嗪霉素(EC_(50)=128.54μg/mL)的3~4倍。活体杀菌活性显示,在500μg/mL质量浓度下,化合物I_(8)(58.69%)和化合物I22(55.37%)对禾谷镰刀菌的抑制率是申嗪霉素(25.14%)的两倍。构效关系分析结果表明,在苯环上引入吸电子基团对化合物的活性不利;而引入给电子基团则有利于提高其杀菌活性。同时,同一取代基在苯环上的取代位置依据活性的高低排列顺序为:邻位>对位>间位。这些结果可用于指导该类化合物的进一步结构改造。

关键词：吩嗪-1-甲酸 1 3 4-噻二唑 1 3 4-噁二唑杀菌活性

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Biological Functional Analysis of Chinese herbal Medicines Against wind-cold-dampness Syndrome 12

Biological Functional Analysis of Chinese Herbal Medicines A...

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12th International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery (ICNC-FSKD)

作者： Zheng, Guang Zhang, Yanjing Zhang, he Li, Miaofeng he, xuwen Qi, Yutao Zhan, Junping Guo, Hongtao Lanzhou Univ Sch Informat Sci & Engn Lanzhou 730000 Peoples R China Henan Univ TCM Affiliated Hosp 2 Zhengzhou 450002 Peoples R China Henan Univ TCM Affiliated Hosp 1 Zhengzhou 450000 Peoples R China

ISBN: (纸本)9781509040933

Syndrome wind-cold-dampness in traditional Chinese medicine (TCM) can be referred to diseases of osteoarthritis, rheumatoid arthritis, cervical spondylitis, and spondylitis and so on. Over thousand years TCM clinical explorations, this syndrome can be treated with a group of herbal medicines in TCM. However, their molecular level biological functions are still not clear. In this study, a set of algorithms e.g., hypergeometric distribution, Jaccard index, and recursive programming for hierarchy network were deployed in the context gene/protein functional similarity and enrichment analysis. The analysis was mainly focused on the associated herbal medicines, their chemical compounds, target proteins' similarity, and gene ontology terms' hierarchical network overrepresentation through the enrichment analysis of hypergeometric distribution with P-value set to 0.05. As a result, these associated herbs share low level (<0.5) of therapeutic similarities on target proteins, yet with common biological functions for TCM syndrome wind-cold-dampness e.g., signal transduction, transportation, chemical homeostatic and metabolic process.

关键词： bioinformatics wind-cold-dampness Chinese herbal medicine biological function hypergeometric distribution

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H3G34突变型弥漫型半球胶质瘤3例并文献复习

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中国微侵袭神经外科杂志 2023年第12期27卷 46-51页

作者：赖续文闫广宁曾伟鹏何文源罗锦霞王卓才王蔚南部战区总医院病理科广东广州510010

目的探讨H3 G34突变型弥漫型半球胶质瘤(H3 G34-mutant diffuse hemisphere glioma,DHG-G34)的临床病理特征,并分析其免疫表型、分子特征和预后。方法复习3例DHG-G34病例资料,光镜下分析其组织学特点和免疫表型,结合分子改变和随访结果... 详细信息

目的探讨H3 G34突变型弥漫型半球胶质瘤(H3 G34-mutant diffuse hemisphere glioma,DHG-G34)的临床病理特征,并分析其免疫表型、分子特征和预后。方法复习3例DHG-G34病例资料,光镜下分析其组织学特点和免疫表型,结合分子改变和随访结果评估该肿瘤临床病理特征和预后。结果例1、例2位于右侧额叶,例3累及双侧额叶、左侧颞岛叶及基底核区等多个脑叶。术前影像2例额叶病变均显示皮质及交界区囊实性占位,增强扫描囊壁及实性部分强化;例3显示多个脑叶呈不规则异常信号影,强化不明显。显微镜下2例额叶病变均呈胶质母细胞瘤(glioblastoma,GBM)改变,在GBM背景中可见密集分布未分化小细胞,呈原始神经外胚层肿瘤(primitive neuroectodermal tumour,PNET)改变。例3肿瘤累及多个脑叶,呈2~3级星形细胞瘤形态。免疫组化肿瘤细胞胶质纤维酸性蛋白(glial fibrillary acidic protein,GFAP)均阳性,但少突胶质细胞转录因子2(oligodendrocyte transcription factor 2,Olig-2)、异柠檬酸脱氢酶(isocitrate dehydrogenase,IDH)1/2、地中海贫血伴智力低下综合征X连锁(alpha-thalassemia X-linked intellectual,ATRX)、O6-甲基鸟嘌呤-DNA-甲基转移酶启动子(O6-methylguanine-DNAmethyltransferase promoter,MGMT)和BRAFV600E均阴性。1例P53呈强阳性,2例P53表达完全缺失(无义突变);2例H3 G34R呈弥漫核强阳性,1例H3 G34V阳性。3例均行病灶切除术,例2术后未辅助放化疗,3个月后肿瘤即复发。例1和例3术后行放化疗,在术后12和17个月出现肿瘤进展。结论DHG-G34是一种累及青少年和年轻成人大脑半球的高级别胶质瘤,具有特征性免疫表型和分子改变,患者预后差,但优于IDH野生型GBM和弥漫性中线胶质瘤(H3K27变异型)。

关键词：神经胶质瘤 H3 G34突变组织学分子病理预后

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基于影像学特征对骨质疏松性椎体压缩骨折病人经皮椎体成形术后同椎体再发骨折的预测研究

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国际医学放射学杂志 2022年第4期45卷 407-413页

作者：吴丽梁治平熊玉超何洁贾妩懿吴迪朗曾旭文陈松广州市红十字会医院放射科广州510220

目的探讨基于影像学特征对骨质疏松性椎体压缩骨折(OVCF)病人经皮椎体成形术(PVP)后的列线图模型预测术椎椎体再发骨折的价值。方法回顾性纳入急性OVCF并行PVP后的病人93例。所有病人均行X线及MRI检查,根据椎体再发骨折诊断标准将病人... 详细信息

目的探讨基于影像学特征对骨质疏松性椎体压缩骨折(OVCF)病人经皮椎体成形术(PVP)后的列线图模型预测术椎椎体再发骨折的价值。方法回顾性纳入急性OVCF并行PVP后的病人93例。所有病人均行X线及MRI检查,根据椎体再发骨折诊断标准将病人分为再发骨折组(48例)和无再发骨折组(45例)。采用t检验和卡方检验比较2组间临床资料及影像特征的差异,对差异有统计学意义的指标进行多因素Logistic回归分析,获取再发骨折的独立危险因素,采用R软件建立列线图模型并绘制其校准曲线。采用受试者操作特征(ROC)曲线评估模型的预测效能,计算ROC曲线下面积(AUC)。应用校准曲线对列线图模型进行验证。结果再发骨折组的椎体高度恢复率、延伸至终板的骨折线、椎体内裂隙(IVC)、骨水泥周围积液及骨水泥-终板未接触(NPEC)与无再发骨折组的差异均有统计学意义(均P<0.05);多因素Logistic回归分析显示延伸至终板的骨折线[优势比(OR)=3.232]、存在IVC(OR=27.117)和NPEC(OR=1.993)及较高的椎体高度恢复率(OR=2.943)为同椎体再发骨折的独立危险因素(均P<0.05)。存在延伸至终板的骨折线的椎体骨质前份前移距离[(3.12±2.62)mm]大于无延伸者[(1.67±2.18)mm](P<0.05)。与不存在IVC病人相比,存在IVC病人的椎体高度恢复率(分别为7.19%±8.60%和12.63%±11.81%)和NPEC发生率[78.38%(58/74)和94.74%(18/19)]均更高(P<0.05)。列线图模型预测再发骨折的AUC为0.860,敏感度0.792,特异度0.844。校准曲线显示列线图预测概率与实际概率一致性尚可。结论基于影像学特征建立的列线图模型能够预测术椎椎体再发骨折。

关键词：骨质疏松性椎体压缩骨折经皮椎体成形术再发骨折列线图磁共振成像数字X线摄影

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Biomedical Network Regulated by Acanthopanacis Cortex (Wu-Jia-Pi) for Ossification 12

Biomedical Network Regulated by Acanthopanacis Cortex (Wu-Ji...

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12th International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery (ICNC-FSKD)

作者： Zhan, Junping Guo, Hongtao Yang, Yun Qi, Yutao Li, Miaofeng he, xuwen Zheng, Guang Henan Univ TCM Affiliated Hosp 1 Zhengzhou 450000 Peoples R China Henan Univ TCM Affiliated Hosp 2 Zhengzhou 450002 Peoples R China Lanzhou Univ Sch Informat Sci & Engn Lanzhou 730000 Peoples R China

ISBN: (纸本)9781509040933

Acanthopanacis Cortex (AC) is a Chinese herbal medicine (Wu-Jia-Pi in PinYin) which is recognized with therapeutic effect of "strengthening bone and sinew", yet its regulating biological network is still obscure. In this study, started from AC's chemical compounds, their direct target proteins were filtered out. Then these targeted proteins were annotated with biological processes under the framework of Gene Ontology (GO) terms' hierarchical networks which were overrepresented and enriched with them with statistic significant p-value set to 0.05. In the biological process hierarchy networks, ossification formed a big one with bone formation associated biological processes. Further protein-protein interaction analysis with these targeted proteins and bone expressed ones formed a clear and concise protein-regulation network for ossification which should be responsible for the therapeutic effect of "strengthening bone and sinew". This study proposed a new approach of analyzing biological functions of a specified Chinese herbal medicine targeting certain therapeutic effect.

关键词： Acanthopanacis Cortex ossification Chinese herbal medicine protein-protein interaction biomedical network

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混凝—气浮工艺预处理ABS树脂生产废水

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化工环保 2017年第1期37卷 55-61页

作者：罗梦何绪文林宏宇刘仪生吴佳兴李焱中国矿业大学(北京)化学与环境工程学院北京100083 中国石油吉林石化分公司合成树脂厂吉林吉林132021

采用混凝—气浮工艺对ABS树脂生产过程中的丁二烯聚合工段和乳液接枝工段混合废水进行预处理,优化了工艺条件。实验结果表明:最佳药剂组合为CaCl_2和阳离子型聚丙烯酰胺(FO4440SSH),最佳Ca Cl2投加量为75 mg/L,最佳FO4440SSH投加量为10 ... 详细信息

采用混凝—气浮工艺对ABS树脂生产过程中的丁二烯聚合工段和乳液接枝工段混合废水进行预处理,优化了工艺条件。实验结果表明:最佳药剂组合为CaCl_2和阳离子型聚丙烯酰胺(FO4440SSH),最佳Ca Cl2投加量为75 mg/L,最佳FO4440SSH投加量为10 mg/L,最佳废水p H范围为5~7;最优操作条件为以288 r/min的转速搅拌混凝1 min,再以72 r/min的转速搅拌絮凝20 min;混凝阶段的最佳G值为159.9 s^(-1)、GT值为9 594,絮凝阶段的最佳G值为24.5 s^(-1)、GT值为29 400;优化条件下,废水的浊度与COD去除率均可达98%以上。

关键词：丙烯腈一丁二烯一苯乙烯共聚物(ABS) 废水处理混凝絮凝气浮 G确莹

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Charge Transfer Platform and Catalytic Amplification of Phenanthroimidazole Derivative: A New Strategy for DNA Bases Recognition

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ANALYTICAL CheMISTRY 2019年第18期91卷 11938-11945页

作者： Lu, Nannan Liu, he Huang, Rui Gu, Yue Yan, Xiaoyi Zhang, Tinging Xu, Zhiqian Xu, Haixin Xing, Yue Song, Yu Li, xuwen Zhang, Zhiquan Jilin Univ Coll Chem Changchun 130012 Jilin Peoples R China

Research about DNA composition has been concentrated on DNA damage in the past few decades. However, it still remains a great challenge to construct a rapid, facile, and accurate approach for simultaneously monitoring four DNA bases, guanine (G), adenine (A), thymine (T), and cytosine (C). herein, a novel electrochemical sensor based on phenanthroimidazole derivative, 2-(4-bromophenyl)-1-phenyl-1H-phenanthro[9,10-d]-imidazole (PPI), is successfully fabricated by a simple electrochemical method. The bromophenyl group in PI could expand their aromatic plane, induce the pi-conjugated extension, and enhance the charge transfer and pi-pi interaction. The phenyl group at N1 position could regulate the intermolecular interaction, which could promote the possibility of intermolecular connection. The PPI polymer (poly(PPI)) with pi-electron enriched conjugation architecture has been applied in simultaneous determination of G, A, T, and C in neutral solution by square wave voltammetry (SWV) method with well-separated peak potentials at 0.714, 1.004, 1.177, and 1.353 V, respectively. The sensor functionalized with poly(PPI) exhibits wide linear response for G, A, T, and C in the concentration ranges of 3-300, 1-300, 30-800, and 20-750 mu M, respectively. With favorable selectivity, stability, and reproducibility, the sensor is successfully utilized to monitor four DNA bases in real samples, displaying a promising prospect for electrochemical sensing devices.

关键词： Cytosine Genetics Electrodes Oxidation Acid and base chemistry

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