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The Study of Electromagnetic Stress Testing Method on Oil-Gas Pipelines Based on WT

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Geomaterials 2014年第2期4卷 55-63页

作者： Bin Liu Wanru Sun yiren lin School of Information Science and Engineering Shenyang University of Technology Shenyang China

This paper proposes an effective method for early diagnosis (stress concentrating) of the oil-gas pipeline. Based on the principle of electromagnetic induction Faraday, we have designed and realized the nondestructive testing system for stress concentration area of ferromagnetic materials by means of the research of metal materials inverse magnetostrictive effect mechanism. The system changes the influence degree of the stress in ferromagnetic materials’ magnetic conductance to the corresponding voltage array by using discrete wavelet analysis method to process the data, in which not only the measuring accuracy is improved, but also the stress concentration is more directly reflected. The experiments confirm that the electromagnetic stress testing method is feasible and valid.

关键词： Oil-Gas Pipeline Electromagnetic Induction Magnetic Conductance Stress Concentration Nondestructive Testing

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响应曲面法优化石英脉型金矿尼尔森重选工艺

中南大学学报（自然科学版） 2019年第12期50卷 2925-2931页

作者：陈桥陈贵民佟琳琳林意人杨洪英东北大学冶金学院辽宁沈阳110819 海南山金矿业有限公司海南乐东572531

使用MD3型尼尔森选矿机对石英脉型金矿进行重选试验研究,利用响应曲面法探究磨矿细度、相对离心力及反冲水压对金回收率的影响,分析各因素之间交互作用的显著性。研究结果表明:磨矿细度对金回收率影响最大,反冲水压次之,相对离心力对金... 详细信息

使用MD3型尼尔森选矿机对石英脉型金矿进行重选试验研究,利用响应曲面法探究磨矿细度、相对离心力及反冲水压对金回收率的影响,分析各因素之间交互作用的显著性。研究结果表明:磨矿细度对金回收率影响最大,反冲水压次之,相对离心力对金回收率影响最小。相对离心力与反冲水压的交互作用最显著,磨矿细度与反冲水压的交互作用次之,而相对离心力与磨矿细度的交互作用不显著。通过模型预测最优试验条件为:磨矿细度83.17%,相对离心力64.68g(g为重力加速度),反冲水压18.55kPa。在最优条件下,金回收率的预测值为82.48%,验证试验平均值为82.33%,与预测值相近,表明所得预测模型在本研究范围内合理有效。

关键词：金矿尼尔森选矿机响应曲面法金回收率优化工艺

A biomaterial-based therapy for lower limb ischemia using Sr/Si bioactive hydrogel that inhibits skeletal muscle necrosis and enhances angiogenesis

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Bioactive Materials 2023年第8期26卷 264-278页

作者： Ye Yuan Zhaowenbin Zhang Fandi Mo Chen Yang yiren Jiao Enci Wang Yuchong Zhang Peng lin Chengkai Hu Weiguo Fu Jiang Chang Lixin Wang Department of Vascular Surgery Zhongshan HospitalFudan University180 Fenglin RoadShanghai200032China Department of Vascular Surgery Zhongshan Xiamen HospitalFudan University668 JinhuRoadXiamen361015China Joint Centre of Translational Medicine The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325000China Zhejiang Engineering Research Center for Tissue Repair Materials Wenzhou InstituteUniversity of Chinese Academy of SciencesWenzhou325000China Shanghai Institute of Ceramics Chinese Academy of Sciences1295 Dingxi RoadShanghai200050China

Muscle necrosis and angiogenesis are two major challenges in the treatment of lower-limb ischemic *** this study,a triple-functional Sr/Si-containing bioceramic/alginate composite hydrogel with simultaneous bioactivity in enhancing angiogenesis,regulating inflammation,and inhibiting muscle necrosis was designed to treat lower-limb ischemic *** particular,sodium alginate,calcium silicate and strontium carbonate were used to prepare injectable hydrogels,which was gelled within 10 *** importantly,this composite hydrogel sustainedly releases bioactive Sr^(2+)and SiO_(3)^(2-) ions within 28 *** biological activity of the bioactive ions released from the hydrogels was verified on HUVECs,SMCs,C2C12 and Raw 264.7 cells in vitro,and the therapeutic effect of the hydrogel was confirmed using C57BL/6 mouse model of femoral artery ligation in *** results showed that the composite hydrogel stimulated angiogenesis,developed new collateral capillaries,and re-established the blood *** addition,the bioactive hydrogel directly promoted the expression of muscle-regulating factors(MyoG and MyoD)to protect skeletal muscle from necrosis,inhibited M1 polarization,and promoted M2 polarization of macrophages to reduce inflammation,thereby protecting skeletal muscle cells and indirectly promoting *** results indicate that these bioceramic/alginate composite bioactive hydrogels are effective biomaterials for treating hindlimb ischemia and suggest that biomaterial-based approaches may have remarkable potential in treating ischemic diseases.

关键词： Hindlimb ischemic diseases Strontium carbonate and calcium silicate bioceramic Bioactive hydrogel Muscle necrosis Angiogenesis

Characteristics of plankton Hg bioaccumulations based on a global data set and the implications for aquatic systems with aggravating nutrient imbalance

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Frontiers of Environmental Science & Engineering 2022年第3期16卷 121-133页

作者： Zhike Li Jie Chi Zhenyu Wu Yiyan Zhang Yiran Liu Lanlan Huang yiren Lu Minhaz Uddin Wei Zhang Xuejun Wang Yan lin Yindong Tong School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China School of Economics and Management China University of PetroleumBeijing 102249China School of Environment and Natural Resource Renmin University of ChinaBeijing 100872China College of Urban and Environmental Sciences Peking UniversityBeijing 100871China Norwegian Institute for Water Research Oslo 0349Norway

The bioaccumulation of mercury(Hg)in aquatic ecosystem poses a potential health risk to human being and aquatic *** by plankton represent a crucial process of Hg transfer from water to aquatic food ***,the current understanding of major factors affecting Hg accumulation by plankton is *** this study,a data set of 89 aquatic ecosystems worldwide,including inland water,nearshore water and open sea,was *** factors influencing plankton Hg bioaccumulation(i.e.,plankton species,cell sizes and biomasses)were *** results indicated that total Hg(THg)and methylmercury(MeHg)concentrations in plankton in inland waters were significantly higher than those in nearshore waters and open *** factors for the logarithm of THg and MeHg of phytoplankton were 2.4–6.0 and 2.6–6.7 L/kg,respectively,in all aquatic *** could be further biomagnified by a factor of 2.1–15.1 and 5.3–28.2 from phytoplankton to *** MeHg concentrations were observed with the increases of cell size for both phyto-and zooplankton.A contrasting trend was observed between the plankton biomasses and BAF_(MeHg),with a positive relationship for zooplankton and a negative relationship for *** physiologic traits impose constraints on the rates of nutrients and contaminants obtaining process from ***,many aquatic ecosystems are facing rapid shifts in nutrient *** suggested that these potential influences on the growth and composition of plankton should be incorporated in future aquatic Hg modeling and ecological risk assessments.

关键词： Plankton Hg bioaccumulation Physiological characteristics A cross-system analysis Nutrient compositions Global data set

65例新型冠状病毒感染重型患者舌象特征探讨

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中医临床研究 2023年第33期15卷 34-38页

作者：朱子龙孙征李星星张荣贤陈鸿赵炜程林依人徐征黄宝驹赵裕沛朱益敏张建斌南京中医药大学第二附属医院/江苏省第二中医院江苏南京210017 南京中医药大学江苏南京210023

目的:研究温疫病中舌象的特征及其在诊疗中的价值。方法:采集南京中医药大学第二附属医院(江苏省第二中医院)肺病科收治的新型冠状病毒感染重型患者的舌象及其临床证候资料,并进行统计分析。结果:研究共纳入了65例新型冠状病毒感染重型... 详细信息

目的:研究温疫病中舌象的特征及其在诊疗中的价值。方法:采集南京中医药大学第二附属医院(江苏省第二中医院)肺病科收治的新型冠状病毒感染重型患者的舌象及其临床证候资料,并进行统计分析。结果:研究共纳入了65例新型冠状病毒感染重型患者,男39例(60.0%,39/65)、女26例(40.0%,26/65),平均年龄(78.3±9.0)岁。常见舌象表现:①舌色以暗红舌(43.0%)为主,部分患者可见淡红舌(26.1%);②舌形常见肿胀舌(36.9%)、裂纹舌(35.3%),部分可见胖大舌(20.0%);③舌苔颜色以黄苔(49.2%)、白苔(47.6%)为主;④苔质多为腻苔(49.2%)及薄苔(33.8%),部分患者可见剥落苔(12.3%);⑤综合苔质和苔色,以黄腻苔(35.3%)、薄白苔(27.6%)为多。根据患者的中医临床症状及舌象分析,总体以湿邪为主,同时可见瘀、热、虚等证素,临床证候也多表现为痰湿中阻、湿热壅肺、气阴亏虚且三证之间证候信息互有夹杂。相关性分析进一步发现:舌色变化与基础疾病呈高度相关,舌苔变化则与中医证候类型高度相关。结论:新型冠状病毒感染重型患者多为高龄人群,多患有基础疾病,并存在多种疾病共患的特点。新型冠状病毒感染重型患者舌象有一定规律性变化,舌色与舌苔存在不同的临床意义,依据舌苔可以推断新型冠状病毒感染重症患者的疾病浅深和证型分类,而舌色则较多反映患者的基础疾病性质和体质特征,这与古代医家对温疫病中舌苔及舌质诊断价值差异的认识相符合。这一研究为临床中医辨治新型冠状病毒感染提供了参考,也为今后临床中其他急性传/感染性疾病的舌诊运用及临床治疗提供一定的思考。

关键词：新型冠状病毒感染舌象中医证候温病

The genomes of medicinal skullcaps reveal the polyphyletic origins of clerodane diterpene biosynthesis in the family Lamiaceae

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Molecular Plant 2023年第3期16卷 549-570页

作者： Haixiu Li Song Wu Ruoxi lin yiren Xiao Ana Luisa Malaco Morotti Ya Wang Meytal Galilee Haowen Qin Tao Huang Yong Zhao Xun Zhou Jun Yang Qing Zhao Angelos K.Kanellis Cathie Martin Evangelos C.Tatsis National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China University of Chinese Academy of Sciences Beijing 100049China Novogene Bioinformatics Institute BeijingChina Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai Chenshan Plant Science Research CenterChinese Academy of SciencesShanghai 201602 Group of Biotechnology of Pharmaceutical Plants Lab.of PharmacognosyDepartment of Pharmaceutical SciencesAristotle University of Thessaloniki54124 ThessalonikiGreece John Innes Centre Norwich NR47UHUK CEPAMS-CAS-JIC Centre of Excellence for Plant and Microbial Sciences Shanghai 200032China

The presence of anticancer clerodane diterpenoids is a chemotaxonomic marker for the traditional Chinese medicinal plant Scutellaria barbata,although the molecular mechanisms behind clerodane biosynthesis are ***,we report a high-quality assembly of the 414.98 Mb genome of *** into 13 *** phylogenomic and biochemical data,we mapped the plastidial metabolism of kaurene(gibberellins),abietane,and clerodane diterpenes in three species of the family Lamiaceae(Scutellaria barbata,Scutellaria baicalensis,and Salvia splendens),facilitating the identification of genes involved in the biosynthesis of the clerodanes,kolavenol,and *** show that clerodane biosynthesis evolved through recruitment and neofunctionalization of genes from gibberellin and abietane *** the assumed monophyletic origin of clerodane biosynthesis,which is widespread in species of the Lamiaceae,our data show distinct evolutionary lineages and suggest polyphyletic origins of clerodane biosynthesis in the family *** study not only provides significant insights into the evolution of clerodane biosynthetic pathways in the mint family,Lamiaceae,but also will facilitate the production of anticancer clerodanes through future metabolic engineering efforts.

关键词： Scutellaria barbata genome clerodane diterpenoids biosynthesis specialized metabolism evolution

Association between 5HT3D receptor gene polymorphisms and therapeutic response to risperidone in schizophrenic patients

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Association between 5HT3D receptor gene polymorphisms and th...

遗传学进步与人口健康高峰论坛

作者： Shunying Yu Huafang Li Zhiguang lin Fei Li Yingmei Fu yiren Weng Jichen Jiang Ye Zhang Dongxiang Wang Yiping Qian Niufang Gu (Shanghai Mental Health Center)

The serotonin type 3 (5-HT(3) receptor is the only ligand-gated ion channel receptor for serotonin (5-HT),and plays an important role in modulating the inhibitory action of dopamine in mesocorticolimbic.A variety of antipsychotics inhibit ion fluxes through 5-HT3 receptors in a noncompetitive *** risperidone is a widely used atypical antipsychotic agent,this study aimed to exmaine the relationship between 5HT3D receptor gene polymorphisms and therapeutic response to risperidone in schizophrenic *** hundred eighty-two patients including 204 male and 178 female were recruited from the Shanghai Mental Health Center *** patients met DSM-Ⅳ criteria for schizophrenia,and had Clinical Global

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新型复配混凝剂处理三次采油废水的实验研究

工业水处理 2006年第11期26卷 50-52页

作者：汤争争赵林鲁逸人谭欣天津大学环境科学与工程学院天津300072

从已有的混凝剂中筛选出几种适合处理三次采油废水的无机和有机高分子混凝剂,通过复配提高三次采油废水中部分水解聚丙烯酰胺(HPAM)的去除率,由实验得出了最佳复配pH,在最佳pH和最佳搅拌条件下进行实验,发现聚合双酸铝铁(PAFCS)和阳离... 详细信息

从已有的混凝剂中筛选出几种适合处理三次采油废水的无机和有机高分子混凝剂,通过复配提高三次采油废水中部分水解聚丙烯酰胺(HPAM)的去除率,由实验得出了最佳复配pH,在最佳pH和最佳搅拌条件下进行实验,发现聚合双酸铝铁(PAFCS)和阳离子型聚丙烯酰胺〔P(DMDAAC/AM)〕复配能得到最好的效果,HPAM的去除率达到92.6%。另外,在实验中通过添加氧化剂进行了氧化预处理实验,并进行了加砂强化混凝实验。

关键词：水解聚丙烯酰胺氧化预处理强化混凝

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生胶体系对胎侧支撑胶耐屈挠性能的影响

橡胶工业 2019年第12期66卷 917-920页

作者：潘弋人刘华侨朱琳汪传生青岛科技大学机电工程学院山东青岛266061 特拓(青岛)轮胎技术有限公司山东青岛266000

天然橡胶(NR)和顺丁橡胶(BR)并用用于胎侧支撑胶中,研究生胶体系对胎侧支撑胶耐屈挠性能的影响。结果表明:随着NR/BR并用胶中NR用量的增大,胶料的炭黑分散性变差,拉伸强度和拉断伸长率呈增大趋势,弹性降低,压缩疲劳温升增大;增大并用胶... 详细信息

天然橡胶(NR)和顺丁橡胶(BR)并用用于胎侧支撑胶中,研究生胶体系对胎侧支撑胶耐屈挠性能的影响。结果表明:随着NR/BR并用胶中NR用量的增大,胶料的炭黑分散性变差,拉伸强度和拉断伸长率呈增大趋势,弹性降低,压缩疲劳温升增大;增大并用胶中BR的用量,可以提高胶料的耐屈挠性能。

关键词：天然橡胶顺丁橡胶并用胶胎侧支撑胶耐屈挠性能