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对2岁内行先天性膈疝修补术后的儿童采用基于兴趣区与基于全肺肺段分析的方法进行MR肺灌注定量分析的对比

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国际医学放射学杂志 2017年第1期 109-109页

作者： M.Weis V.Sommer F.G.Zllner C.Hagelstein K.Zahn t.schaible 柴超 Institute of Clinical Radiology and Nuclear Medicine University Medical Center Mannheim Medical Faculty Mannheim Heidelberg University

摘要目的采用基于兴趣区的方法发现先天性膈疝修补后的2岁儿童手术侧的MR肺灌注值与对侧相比减低。本研究评估采用基于全肺肺段的方法是否能够重复上述的实

关键词：兴趣区肺段膈疝修补术儿童肺灌注 MR

MR定量肺灌注成像的高时间与空间分辨率两种序列应用于先天性膈疝修补术后2岁儿童的比较研究

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国际医学放射学杂志 2014年第6期 605-605页

作者： M.Weidner F.G.Zllner C.Hagelstein K.Zahn t.schaible S.O.Schoenberg 刘晨 Institute of Clinical Radiology and Nuclear Medicine University Medical Center MannheimMedical Faculty MannheimHeidelberg UniversityTheodor-Kutzer Ufer 1-368167 MannheimGermany

摘要目的先天性膈疝(CDH)通常会导致肺发育不良。动态对比增强MRI(DCE-MRI)肺灌注成像可以进行定量研究,同时MR灌注的数值则取决于时间分辨率。因此本研究

关键词：膈疝修补术序列 MR 肺灌注成像儿童空间分辨率空间分辨力

产前MRI诊断先天性膈疝:胎儿MR肺容积成像与出生后需要假体修补的相关性

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国际医学放射学杂志 2015年第2期 194-194页

作者： C.Hagelstein K.Zahn M.Weidner C.Weiss S.O.Schoenberg t.schaible 郭凌飞 Institute of Clinical Radiology and Nuclear Medicine University Medical Center Mannheim University of HeidelbergTheodor-Kutzer-Ufer 1-3 68167 Mannheim Germany

摘要目的评估有先天性膈疝(CDH)的新生儿进行横膈假体修补的必要性,与MRI产前观察-预期法进行肺容积测量(o/e MR-FLV)的相关性。方法采用o/e MR-FLV法评

关键词：先天性膈疝 FLV MR 胎儿出生后 MRI 假体相关性

2岁儿童先天性膈疝修补术后的3.0tMR定量肺灌注成像:初步研究

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国际医学放射学杂志 2013年第1期 98-98页

作者： F.G.Zllner K.Zahn t.schaible S.O.Schoenberg L.R.Schad K.W.Neff 范文骏 Computer Assisted Clinical Medicine Medical Faculty MannheimHeidelberg UniversityTheodor-Kutzer-Ufer 1-368167 MannheimGermany

目的探讨先天性膈疝修补术后的2岁儿童行肺部3.0t动态对比增强MRI检查的可行性,以及该检查能否显示可能伴发的肺发育不良(表现为局部微循环减低)。方法选取12个膈疝修补术后儿童[平均年龄(2.0±0.2)岁]进行3.0t动态对比增强MRI检查,采... 详细信息

目的探讨先天性膈疝修补术后的2岁儿童行肺部3.0t动态对比增强MRI检查的可行性,以及该检查能否显示可能伴发的肺发育不良(表现为局部微循环减低)。方法选取12个膈疝修补术后儿童[平均年龄(2.0±0.2)岁]进行3.0t动态对比增强MRI检查,采用高时间分辨力的随机投影(tWISt)MRA序列。采用逐体素反卷积方式定量分析肺灌注情况。在避开大的肺内动静脉的情况下,分别选取6个感兴趣区(左右肺的上中下部)来评价肺血流量(PBF)、肺血容量(PBV)和平均通过时间(Mtt)的情况。结果膈疝同侧和对侧的PBF和PBV值间的差异均具有统计学意义(Ptt值则无明显差异(P=0.5)。结论在3t条件下对2岁先天性膈疝修补术后儿童进行动态对比增强MRI检查具有可行性。患侧PBF值明显低于对侧,提示肺灌注减低。先天性膈疝修补术后儿童的肺动态对比增强MRI检查有助于早期确定肺发育不良,并可进行长期随访观察。

关键词：膈疝修补术 MRI 儿童肺灌注 PBF

transport mechanism in chemically reactive hybrid nanofluid flow containing gyrotactic micro-organisms over a curved oscillatory surface

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 177-192页

作者： M.NAVEED M.IMRAN t.ASGHAR Z.ABBAS Department of Mathematics Division of Science and TechnologyUniversity of Education Department of Mathematics The Islamia University of Bahawalpur

this paper examines the transport analysis, including both heat transfer and mass transfer, in hybrid nanofluid flow containing gyrotactic microorganisms towards a curved oscillatory surface. the influence of magnetic fields is also inspected in terms of their physical characteristics. to depict the phenomena of transport, modified versions of both Fick's and Fourier's laws are used. Additionally, the characteristics of both heterogeneous and homogeneous chemical reactions are also incorporated. Utilizing a curvilinear coordinate system, the flow problem is formulated as partial differential equations(PDEs)for momentum, concentration, microorganism field, and energy. An analytical solution to the obtained flow equations is achieved utilizing the homotopy analysis method(HAM).the effects of significant flow parameters on the pressure and microorganism fields, velocity, oscillation velocity, concentration, and temperature distributions are shown via graphs. Furthermore, the variations in skin friction, mass transfer rate, heat transfer rate, and local motile number due to different involved parameters are presented in tables and are analyzed in detail. Graphical results indicate that the curves of velocity and temperature fields are enhanced as the values of the solid volume fraction variables *** is also verified that the concentration rate field decreases as the values of the homogeneous reaction strength parameter and the radius of curvature parameter increase, and it increases with the Schmidt number and the heterogeneous reaction strength *** outcomes show a favorable response of the motile number to advanced values of the Peclet number, the Schmidt number, the microorganism difference parameter, and the bio-convective Lewis number.

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thermal Stability and thermal Aging of Poly(vinyl chloride)/MgAl Layered Double Hydroxides Composites

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Chinese Journal of Polymer Science 2016年第5期34卷 542-551页

作者： Hong-mei Zhang 张书华 Polite Stewart Chen-hui Zhu Wei-jun Liu Alexander Hexemer Eric schaible 王成 College of Chemistry and Chemical Engineering Shanghai University of Engineering Science Shanghai 201620 China Advanced Light Source Lawrence Berkeley National Laboratory Berkeley 94720 USA College of Mechanical Engineering Shanghai University of Engineering Science Shanghai 201620 China

MgAl-LDH（layered double hydroxides） were prepared with CO（NH2）2, NH4 Cl and NH3·H2O by the coprecipitation method, respectively. Corresponding composite membranes were prepared by the coating method. LDHs were characterized by WAXS, CO2-tPD and SEM. the morphology of the PVC/LDHs composite membranes were characterized by means of SEM. the thermal stability of the membranes was analyzed by air aging box and tGA-FtIR. the SEM results show that nano-particles can be compatible with poly（vinyl chloride）（PVC） matrix homogeneously by the stirring-ultrasound blend method with two steps. Furthermore, the air aging box results proved that MgAl-CO（NH2）2-LDH has the best effect on thermal stability of PVC. tGA-FtIR results show that MgAl-CO（NH2）2-LDH could adsorb more HCl that resulted from the degradation of PVC and improve the pyrolysis temperature of the first degradation stage by 15 K compared with PVC.

关键词： vinyl layered compatible pyrolysis heating steps spacing interlayer dispersed blend

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Fecal microbiota transplantation in allergic diseases

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World Journal of Methodology 2025年第2期15卷 83-91页

作者： Ece tüsüzÖnata ÖnerÖzdemir Division of Pediatric Allergy and Immunology Medical FacultySakarya UniversityAdapazarı54100SakaryaTürkiye

Microorganisms such as bacteria,fungi,viruses,parasites living in the human intestine constitute the human intestinal *** refers to composi-tional and quantitative changes that negatively affect healthy gut *** recent years,with the demonstration that many diseases are associated with dysbiosis,treatment strategies targeting the correction of dysbiosis in the treat-ment of these diseases have begun to be *** microbiota trans-plantation(FMt)is the process of transferring faeces from a healthy donor to another recipient in order to restore the gut microbiota and provide a therapeutic *** studies have gained popularity after probiotic,prebiotic,symbiotic studies in the treatment of dysbiosis and related *** has emerged as a potential new therapy in the treatment of allergic diseases as it is associated with the maintenance of intestinal microbiota and immunological balance(t helper 1/t helper 2 cells)and thus suppression of allergic *** this article,the definition,application,safety and use of FMt in allergic diseases will be discussed with current data.

关键词： Microbiota Dysbiosis Faecal microbiota transplantation Allergic diseases

Free vibration and transient response of double curved beams connected by intermediate straight beams

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 37-62页

作者： R.A.JAFARI-tALOOKOLAEI H.GHANDVAR E.JUMAEV S.KHAtIR t.CUONG-LE School of Mechanical Engineering Babol Noshirvani University of Technology Department of Mechanical Engineering Faculty of Engineering New Uzbekistan University University of Business and Science Center for Engineering Application and technology Solutions Ho Chi Minh City Open University

this paper investigates the free vibration and transient response of interconnected structures including double curved beams and intermediate straight beams,which are all constructed from functionally graded porous(FGP) materials. the strain potential and kinetic energies of each beam along with the work done by the external force are calculated. Additionally, a higher-order beam element is introduced to derive stiffness and mass matrices, along with the force vector. the curved and straight beams are discretized, and their assembled stiffness, mass matrices, and force vectors, are *** conditions at the joints are used to derive the total matrices of the entire structure. Subsequently, the natural frequencies and transient response of the system are determined. the accuracy of the mathematical model and the self-developed computer program is validated through the comparison of the obtained results with those of the existing literature and commercial software ANSYS, demonstrating excellent ***, a comprehensive study is conducted to investigate the effects of various parameters on the free vibration and transient response of the considered structure.

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Chinese social media reaction to the MERS-CoV and avian influenza A(H7N9) outbreaks

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Infectious Diseases of Poverty 2013年第1期2卷 259-269,258页

作者： Isaac Chun-Hai Fung King-Wa Fu Yuchen Ying Braydon schaible Yi Hao Chung-Hong Chan Zion tsz-Ho tse Department of Epidemiology Jiann-Ping Hsu College of Public HealthGeorgia Southern UniversityStatesboroGeorgiaUSA Journalism and Media Studies Center The University of Hong KongHong Kong Special Administrative RegionChina Department of Computer Science The University of GeorgiaAthensGeorgiaUSA Department of Biostatistics Jiann-Ping Hsu College of Public HealthGeorgia Southern UniversityStatesboroGeorgiaUSA College of Engineering The University of GeorgiaAthensGeorgiaUSA

Background:As internet and social media use have skyrocketed,epidemiologists have begun to use online data such as Google query data and twitter trends to track the activity levels of influenza and other infectious *** China,Weibo is an extremely popular microblogging site that is equivalent to *** on the wealth of public opinion data contained in posts on Weibo,this study used Weibo as a measure of the Chinese people’s reactions to two different outbreaks:the 2012 Middle East Respiratory Syndrome Coronavirus(MERS-CoV)outbreak,and the 2013 outbreak of human infection of avian influenza A(H7N9)in ***:Keyword searches were performed in Weibo data collected by the University of Hong Kong’s Weiboscope *** values were determined for each keyword and reaction values per million posts in the days after outbreak information was released to the ***:the results show that the Chinese people reacted significantly to both outbreaks online,where their social media reaction was two orders of magnitude stronger to the H7N9 influenza outbreak that happened in China than the MERS-CoV outbreak that was far away from ***:these results demonstrate that social media could be a useful measure of public awareness and reaction to disease outbreak information released by health authorities.

关键词： H7N9 logging Middle