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Flow field generated by a dielectric barrier discharge plasma actuator in quiescent air at initiation stage

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Chinese Journal of Aeronautics 2021年第3期34卷 13-24页

作者： xin ZHANG y.D.CUI Chien Ming Jonathan TAy B.C.KHOO State Key Laboratory of Aerodynamics China Aerodynamics Research and Development CenterMianyang 621000China National University of Singapore Singapore 119260Singapore

A single Dielectric Barrier Discharge(DBD) plasma actuator driven by Alternating Current(AC) power, capable of inducing a starting vortex and a wall jet in quiescent air, is suited for low-Reynolds-number flow control. However, the starting vortex and the wall jet are usually observed after the plasma actuator has been operated for dozens of and hundreds of cycles of the voltage, respectively. The detail of the induced flow field at the initiation stage of the plasma actuator has rarely been addressed. At the initiation stage, a thin jet that provides the impetus for the entrainment of the induced flow at the beginning of the plasma actuation is first observed by using a high-accuracy phase-lock Schlieren technique and a high-speed Particle Image Velocimetry(PIV) system. This is the initial form of the momentum transfer from the plasma to the ***, an arched type jet is created by the plasma actuator. In addition, the whole development process of the induced flow field from the starting point of the thin jet to the quasi-steady stage of wall jet is presented for providing a comprehensive understanding of the plasma actuator and proposing a relevant enhancement of the numerical simulation model.

关键词： Dielectric barrier discharge Particle image velocimetry Plasma actuator Schlieren technique Wall jet

Zero-Point Motions in Trans-Polyacetylene

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Chinese Physics Letters 1998年第9期15卷 674-676页

作者： FU Rong-tang RAO Xue-song SUN xin y.Kawazoe Department of Physics Fudan UniversityShanghai 2004331 Institute for Materials Research Tohoku UniversitySendai 980-77Japan

In order to substantiate the applicability of the Takayama-Lin-Liu-Maki model to conducting polymer,the Su-Schrieffer-Heeger model is generalized to include the effects of lattice zero-point motions on electronic *** the treatment of the white-noise approximation,some significant electronic properties of Peierls-Fröhlich states are *** finding shows that the correlation of lattice motions suppresses the effects of zero-point motions on the electronic properties more seriously.

关键词： properties lattice electronic

异功散中陈皮对脾虚大鼠MTL分泌和人参皂苷Rb1药动学影响及PK-PD相关性分析

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时珍国医国药 2024年第7期35卷 1781-1786页

作者：段新屹兰昀羲沈龙宇朱昕昀黄巍成都中医药大学四川成都610000

目的通过比较异功散全方组与异功散去陈皮方组脾虚大鼠体内MTL分泌结果和人参皂苷Rb1药代动力学特征的差异,分析参数PK-PD相关性,探讨行气药能否增效补益剂。方法采用脾虚大鼠灌胃给药异功散全方(y组)、异功散去陈皮方(y-C组)、单味陈皮... 详细信息

目的通过比较异功散全方组与异功散去陈皮方组脾虚大鼠体内MTL分泌结果和人参皂苷Rb1药代动力学特征的差异,分析参数PK-PD相关性,探讨行气药能否增效补益剂。方法采用脾虚大鼠灌胃给药异功散全方(y组)、异功散去陈皮方(y-C组)、单味陈皮方(C组)及生理盐水(M组),于颈静脉不同时间点取血,运用液质联用方法检测人参皂苷Rb1血浆浓度、ELISA法检测MTL血浆浓度,拟合PK-PD模型。结果2个组药时曲线均呈双峰,Cmax、Tmax均有两个值,y组两次达峰浓度均明显高于y-C组(Py-C组第2次吸收量明显多于第1次(P0.05),y组>y-C组>C组。PD结果为y组EC_(50)、γ平均值低于y-C组、Emax平均值高于y-C组,与PK-PD模型拟合结果基本一致。PK-PD模型拟合结果为y组Ka1、Ka2、AUC0-t、CL1、CL2、CL3、F、Tlag、EC_(50)、Emax平均值更大;y-C组Vd1、Vd2、γ、Ke0值更大。结论脾虚大鼠体内人参皂苷Rb1及MTL血药浓度改变与灌胃所用异功散含陈皮有一定相关性。异功散中陈皮发挥增强补益剂补益功效的作用机制之一可能是通过促进异功散中人参皂苷Rb1的吸收增多、吸收速率增快,分布更集中于效应部位,使人参皂苷Rb1与MTL之间亲和力更强,从而导致MTL分泌增多,促进胃肠运动。

关键词：异功散陈皮脾虚人参皂苷Rb1 MTL 药动学药效学 PK-PD结合模型

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产科高依赖照护模式的研究进展及启示

中华急危重症护理杂志 2024年第9期5卷 856-860页

作者：王金艳李欣连云港市第一人民医院产房 222002

近年来,高龄和高危孕产妇比例上升,病理妊娠发生率不断增高。产科高依赖照护模式可为危重孕产妇提供严密的监测和高水平照护,取得了一定进展。该文对产科高依赖照护模式提出的背景和概念、产科高依赖照护病房的设置和人员配置、产科高... 详细信息

近年来,高龄和高危孕产妇比例上升,病理妊娠发生率不断增高。产科高依赖照护模式可为危重孕产妇提供严密的监测和高水平照护,取得了一定进展。该文对产科高依赖照护模式提出的背景和概念、产科高依赖照护病房的设置和人员配置、产科高依赖照护的临床实践及效果评价进行总结,结合国情提出产科高依赖照护模式进一步发展的期望,以提升危重孕产妇的照护水平。

关键词：孕产妇产科,医院高依赖照护综述文献(主题) 危重病护理

Mechanism of imipenem-induced mental disorder: A meta-analysis

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World Journal of Psychiatry 2024年第10期14卷 1583-1591页

作者： Zhou-Hong Zhan Jia-Liang Wang Li-Hong Wang Nan-Nan Shen xin-Wen Liu yan-Na yu Fu-Rong Liu Department of Clinical Pharmacy Affiliated Hospital of Shaoxing UniversityShaoxing 312000Zhejiang ProvinceChina

BACKGROUND Imipenem is a highly effective carbapenem antibiotic,which is widely used in the treatment of many serious bacterial *** the same time,it can also cause some adverse reactions,mental abnormalities are the most concerned central nervous system adverse *** patients respond differently to imipenem,and the effect of imipenem on psychiatric disorders is ***,meta-analysis summarizing the results of multiple previous studies can provide stronger evidence support for clinical guidelines to guide clinical rational use of imipenem to minimize *** reviewing the literature published between 2003 and 2017,seven controlled trials with a total of 550 patients were included,with 273 and 277 patients in the control and experimental groups,*** sample size of the study ranged from a minimum of 30 cases to a maximum of 61 *** in the experimental group were treated with imipenem while the control group was treated with conventional ***-analysis showed that the incidence of mental disorders in the experimental group was higher than that in the control group(odds ratio=3.66,95%confidence interval:1.11-12.11,P=0.030);however,there was no significant difference in the incidence of adverse reactions between the two groups(odds ratio=0.05,95%confidence interval:0.00 to 0.10,P=0.060).Funnel diagrams showed that the scattered points of each study were symmetrical and distributed in an inverted funnel shape;therefore,there was no publication *** Imipenem can cause mental disorders in ***,the low quality of the included literature may have affected the final ***,it is necessary to conduct a high-quality randomized controlled study with multiple samples to further confirm the mechanism of imipenem-induced mental disorders and provide effective guidance for clinical treatment.

关键词： Imipenem Psychosis Drug mechanism Meta analysis Document resource quality

Effect of sample size on the response of DEM samples with a realistic grading

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Particuology 2014年第4期12卷 107-115页

作者： xin Huang Kevin J.Hanley Catherine O'Sullivan Fiona C.y.Kwok Skempton Building Department of Civil and Environmental EngineeringImperial College LondonLondon SW7 2AZUnited Kingdom Haking Wong Building Department of Civil EngineeringThe University of Hong Kong

This paper shows that for DEM simulations of triaxial tests using samples with a grading that is repre- sentative of a real soil, the sample size significantly influences the observed material response. Four DEM samples with identical initial states were produced： three cylindrical samples bounded by rigid wails and one bounded by a cubical periodic cell, When subjected to triaxial loading, the samples with rigid boundaries were more dilative, stiffer and reached a higher peak stress ratio than the sample enclosed by periodic boundaries. For the rigid-wall samples, dilatancy increased and stiffness decreased with increasing sample size, The periodic sample was effectively homogeneous, The void ratio increased and the contact density decreased close to the rigid walls, This heterogeneity reduced with increasing sample size. The positions of the critical state lines （CSLs） of the overall response in e-log p＇ space were sensitive to the sample size, although no difference was observed between their slopes. The critical states of the interior regions of the rigid-wall-bounded samples approached that of the homogeneous periodic sample with increasing sample size. The ultimate strength of the material at the critical state is independent of sample size.

关键词： Discrete element method Sample size Rigid boundary Periodic boundary Critical state

Optimization of performance of the KM2A full array using the Crab Nebula

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Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegolev 盛祥东舒富文宋慧超 yu.V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAASO Collaboration Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Tianfu Cosmic Ray Research Center Chengdu 610000China Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Hefei 230026China School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Astronomy.and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal University Shijiazhuang 050024China Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Physics and Astronomy(Zhuhai)&School of Physics(Guangzhou)&Sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China School of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the Large High Altitude Air Shower Observatory(LHAASO)has been in operation since July *** its kilometer-square array(KM2A),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2021 to August 2022,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 10%at tens of *** aspects of the full KM2A array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy spectrum of the Crab Nebula in the energy range of 10-1000 TeV are well fitted by a log-parabola model,which is consistent with the previous results from LHAASO and other experiments.

关键词： γ-ray Crab Nebula significance

鸡白痢沙门菌噬菌体PC79-13的生物学特性及其荧光标记可视化检测宿主菌

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中国生物工程杂志 2024年第8期44卷 105-115页

作者：陆思源曾宇坤周昕扬州大学兽医学院扬州225009

目的:通过异硫氰酸荧光素(fluorescein isothiocyanate, FITC)标记分离得到的鸡白痢沙门菌噬菌体PC79-13,建立荧光噬菌体检测鸡白痢沙门菌的流程。方法:从污水中分离得到一株鸡白痢沙门菌(Salmonella pullorum)的烈性噬菌体,透射电镜表... 详细信息

目的:通过异硫氰酸荧光素(fluorescein isothiocyanate, FITC)标记分离得到的鸡白痢沙门菌噬菌体PC79-13,建立荧光噬菌体检测鸡白痢沙门菌的流程。方法:从污水中分离得到一株鸡白痢沙门菌(Salmonella pullorum)的烈性噬菌体,透射电镜表征其形貌,液体培养宿主后感染测定噬菌体一步生长曲线、热稳定性、pH稳定性、紫外线稳定性及最佳感染复数,以及利用生物信息学方法分析其基因组,了解其生物学特性和基因特征。最后用FITC标记此噬菌体获得一种荧光噬菌体探针。结果:此株鸡白痢沙门菌噬菌体(命名为PC79-13)可在鸡白痢沙门菌C79-13双层琼脂平板上形成大小均一、清晰而透亮的噬菌斑。电镜观察显示:噬菌体PC79-13头部为直径约60 nm的正二十面体,长尾,属于有尾噬菌体属长尾噬菌体科。以鸡白痢沙门菌C79-13为宿主菌测得该噬菌体最佳感染复数为0.01,一步生长曲线显示噬菌体PC79-13的潜伏期为30 min,爆发期为80 min。此外,噬菌体PC79-13对酸碱环境皆有较大耐受性,pH=7.0为其最适酸碱度。其抗紫外线照射和高温能力也较强。FITC标记的荧光PC79-13,宿主鸡白痢沙门菌C79-13感染滴度有少量损失(小于10%)。荧光标记的噬菌体PC79-13能高效结合鸡白痢沙门菌C79-13及其他3株鸡白痢沙门菌,在荧光显微镜下显示绿色荧光棒状结构。荧光PC79-13不结合实验室保存的4株鼠伤寒沙门菌、4株肠炎沙门菌及52株大肠杆菌菌株。结论:分离到一株特异性裂解鸡白痢沙门菌的噬菌体PC79-13。荧光标记的PC79-13仍然保持特异性吸附实验室保存的4株鸡白痢沙门菌菌株的能力,在暗场显微镜下可见目标沙门菌呈现亮绿色荧光,检测限为10 CFU/mL,检测时间少于20 min。因此,构建的荧光噬菌体快速检测法,有潜力未来应用于临床常见鸡白痢沙门菌快检。

关键词：鸡白痢沙门菌噬菌体生物学特性异硫氰酸荧光素(FITC) 快速检测

Impact of intracellular innate immune receptors on immunometabolism

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Cellular & Molecular Immunology 2022年第3期19卷 337-351页

作者： Wei-Chun Chou Elena Rampanelli xin Li Jenny P-y.Ting Lineberger Comprehensive Cancer Center University of North Carolina at Chapel HillChapel HillNC27599USA Department of Genetics University of North Carolina at Chapel HillChapel HillNC27599USA Amsterdam UMC(University Medical Center location AMC)Department of Experimental Vascular MedicineAGEM(Amsterdam Gastroenterology Endocrinology Metabolism)InstituteMeibergdreef 91105 AZAmsterdamThe Netherlands Comparative Immunology Research Center College of Veterinary MedicineChina Agricultural UniversityBeijing100193China

Immunometabolism,which is the metabolic reprogramming of anaerobic glycolysis,oxidative phosphorylation,and metabolite synthesis upon immune cell activation,has gained importance as a regulator of the homeostasis,activation,proliferation,and differentiation of innate and adaptive immune cell subsets that function as key factors in *** changes in epithelial and other stromal cells in response to different stimulatory signals are also crucial in infection,inflammation,cancer,autoimmune diseases,and metabolic *** crosstalk between the PI3K-AKT-mTOR and LKB1-AMPK signaling pathways is critical for modulating both immune and nonimmune cell *** bidirectional interaction between immune cells and metabolism is a topic of intense ***-like receptors(TLRs),cytokine receptors,and T and B cell receptors have been shown to activate multiple downstream metabolic ***,how intracellular innate immune sensors/receptors intersect with metabolic pathways is less well *** goal of this review is to examine the link between immunometabolism and the functions of several intracellular innate immune sensors or receptors,such as nucleotide-binding and leucine-rich repeat-containing receptors(NLRs,or NOD-like receptors),absent in melanoma 2(AIM2)-like receptors(ALRs),and the cyclic dinucleotide receptor stimulator of interferon genes(STING).We will focus on recent advances and describe the impact of these intracellular innate immune receptors on multiple metabolic *** appropriate,this review will provide a brief contextual connection to pathogenic infections,autoimmune diseases,cancers,metabolic disorders,and/or inflammatory bowel diseases.

关键词： Immunometabolism NLRs NLRP3/AIM2 inflammasomes innate sensors/receptors STING AKT-mTOR