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解决一维材料黏附行为的实验方法综述

Engineering 2023年第5期24卷 39-72,I0001,I0002页

作者： James L.Mead shiliang Wang sören Zimmermann sergej Fatikow Han Huang Department of Computing science University of OldenburgOldenburg D-26129Germany school of Physics and Electronics Central South UniversityChangsha 410083China school of Mechanical and Mining Engineering The University of QueenslandBrisbaneQLD 4072Australia

一维(1D)材料(如纳米管和纳米线)的黏附行为在集成一维组件的新型器件以及基于一维阵列的仿生黏合剂的有效制造、功能和可靠性中起着决定性作用。本文汇编并批判性地评估了最近的实验技术,旨在表征由一维材料形成的界面的粘附行为(包括... 详细信息

一维(1D)材料(如纳米管和纳米线)的黏附行为在集成一维组件的新型器件以及基于一维阵列的仿生黏合剂的有效制造、功能和可靠性中起着决定性作用。本文汇编并批判性地评估了最近的实验技术,旨在表征由一维材料形成的界面的粘附行为(包括当这些材料与衬底或邻近的一维材料接触时)。讨论了一维材料与表面的构象以及与之相关的多粗糙度接触的发生,并探讨了界面附着和剥离过程中黏附和摩擦的耦合。考虑了一维材料作为增强剂在纳米复合材料中的应用以及相关的界面表征技术。研究了样品制备和黏附测试过程中存在的环境条件对一维界面相互作用的潜在影响,并最终改变了一维材料的粘附行为。最后,简要介绍了当前的挑战和未来的方向,包括测试环境的系统调查和通过表面改性改变附着力。

关键词：一维材料纳米复合材料一维阵列界面相互作用样品制备表面改性新型器件增强剂

Escherichia coli O157:H7 sepsis following fecal microbiota transplant in an IgA-deficient inflammatory bowel disease patient

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Gastroenterology Report 2022年第1期10卷 609-611页

作者： Landen s.Burstiner Jared silver Logan J.Burstiner Arian Teymoorian Kumar Pallav Demarre Jones Anna Owings sarah Glover Nova southeastern University Dr.Kiran C.Patel College of Osteopathic Medicine DavieFLUSA Department of Gastroenterology University of Mississippi Medical CenterJacksonMSUSA Department of Medicine Division of RheumatologyImmunologyand AllergyBrigham and Women’s HospitalHarvard Medical SchoolBostonMAUSA Department of Medicine Memorial Healthcare SystemHollywoodFLUSA Department of Gastroenterology GI Associates&Endoscopy CenterFlowoodMSUSA

Introduction Clostridioides difficile infection(CDI)is a common gastrointestinal illness worldwide,with increased prevalence and worse outcomes in patients with inflammatory bowel disease(IBD)[1].Fecal microbiota transplant(FMT)is an effective treatment for recurrent CDIs(RCDIs)with minimal serious adverse events(sAEs)reported[2].While immunosuppressive medications increase susceptibility to infections,studies have shown that FMT does not increase sAE risk in immunocompromised patients(including IBD patients on immunosuppressive therapy)[3].

关键词： O157:H7 inflammatory patients

Production of 150 cm wide AZ31 magnesium sheet by twin roll casting

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中国有色金属学会会刊：英文版 2008年第A1期18卷 185-188页

作者： A.A.KAYA O.DUYGULU s.UCUNCUOGLU G.OKTAY D.s.TEMUR O.YUCEL Materials Institute TUBITAK MRCGebzeKocaeli 41470Turkey Engineering Faculty Department of Metallurgy and MaterialsMugla UniversityKotekliMugla 48000Turkey Department of Metallurgical and Materials Engineering Istanbul Technical UniversityIstanbul 34469Turkey

150 cm wide AZ31 magnesium alloy sheet was produced by twin roll *** sheets of 6 mm thickness were cast. The sheet material was characterized using various techniques including metallography and *** mechanical properties were investigated by tensile tests and hardness *** procedures were developed for thermomechanical treatment of cast sheet *** products of these procedures were characterized and the results were discussed for possible potential applications.

关键词： AZ31镁合金微弧氧化膜电化学腐蚀性能三维数值模拟

贵州中三叠世混形黔鳄(爬行纲:主龙类)海生适应性的再研究

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北京大学学报（自然科学版） 2023年第6期59卷 961-969页

作者： Cindy X.s.U 周敏顾书纶 Ryosuke Motani 江大勇北京大学地球与空间科学学院北京100871 北京大学地质博物馆北京100871 Department of Earth and Planetary sciences University of California DavisDavisCA 95616-8605

基于对混形黔鳄(Qianosuchus mixtus)新标本的观察和测量,对其海生适应性进行再研究。按照非鸟类四足动物的海生适应性的5个阶段(M1~M5),将混形黔鳄的测量数据与其他类群进行对比,判断混形黔鳄处于对海洋生活适应的M2-3阶段,尚不能将其... 详细信息

基于对混形黔鳄(Qianosuchus mixtus)新标本的观察和测量,对其海生适应性进行再研究。按照非鸟类四足动物的海生适应性的5个阶段(M1~M5),将混形黔鳄的测量数据与其他类群进行对比,判断混形黔鳄处于对海洋生活适应的M2-3阶段,尚不能将其归为真正的海生动物。对新标本形态的观察表明,虽然混形黔鳄的四肢未显示适应海生的形态特征变化,但在身体的总体形态结构和尾部特征上表现出明显适应波动式或半波动式游泳的变化,说明其可能具有与现生鳄类和海鬣蜥相似的适应海生生活的演化趋势。与现生鳄类等类群相比较显示,即使混形黔鳄发育特化的尾部,也无法进行快速或长距离的游泳。综合上述信息,结合盘县动物群四足动物的习性,推测混形黔鳄可能生活于存在岛屿的台内盆地,混形黔鳄等较高营养层级捕食者具有复杂的生态。

关键词：混形黔鳄中三叠世海生适应性生态

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Nanoemulsion containing a synergistic combination of curcumin and quercetin for nose-to-brain delivery:In vitro and in vivo studies

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Asian Pacific Journal of Tropical Biomedicine 2021年第11期11卷 510-518页

作者： Hitendra s Mahajan Nayana D Patil r.3.patel institute of pharmaceutical education and research shirpurdist-dhule(m.s)india

Objective:To characterize a nanoemulsion containing a synergistic combination of curcumin(CUR)and quercetin(QUE)for brain targeting through the ***:The synergistic activity of the combination of two phytoconstituents,curcumin and quercetin(CUR-QUE)was determined at a 2:1 *** containing the synergistic combination were prepared using high-pressure homogenization *** formulation was characterized for globule size,drug content,thermodynamic stability,zeta potential measurement,and drug *** studies were performed using isolated nasal mucosa of ***,in vivo studies using allograft model were ***:CUR-QUE in a 2:1 ratio combination showed the lowest combination index values 0.99(combination indexstoma U373-MG *** combination inhibited the growth of human glioblastoma U373 MG *** significant drug targeting efficiency percentage(178.25±2.86 for CUR and 170.54±6.11 for QUE)and nose to brain drug direct transport percentage(44.05±0.93 for CUR and 38.25±0.83 for QUE)of optimized nanoemulsion(F9)indicated effective central nervous system targeting via the intranasal *** vivo anticancer study using allograft model of nude mice demonstrated potential anticancer activity of the synergistic combination of CUR-QUE as compared to ***:This study demonstrates that synergistic combination of CUR-QUE was optimal for treatment of human ***,significant site-specific delivery to the brain was achieved by administering nanoemulsion through the *** study also reveals that intranasal delivery of nanoemulsion containing synergistic combination of CUR and QUE could be a promising strategy for brain tumor treatment.

关键词： Curcumin Quercetin Nanoemulsion Brain tumor synergism

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数字贸易发展新趋势及碳减排效应研究

区域金融研究 2024年第2期 82-92页

作者：中国人民银行清远市分行课题组刘淑敏中国人民银行清远市分行广东清远511500

在数字经济发展的大浪潮中,数字贸易积极赋能全球低碳转型。文章阐述数字贸易发展的新趋势,基于2010—2021年48个国家的面板数据,深入探讨数字贸易的碳减排效应及传导机制。研究结果表明,全球数字贸易蓬勃发展,实现了全球化、数智化、... 详细信息

在数字经济发展的大浪潮中,数字贸易积极赋能全球低碳转型。文章阐述数字贸易发展的新趋势,基于2010—2021年48个国家的面板数据,深入探讨数字贸易的碳减排效应及传导机制。研究结果表明,全球数字贸易蓬勃发展,实现了全球化、数智化、服务化、平台化;数字贸易发展对碳排放存在显著的倒“U”型影响;数字贸易的碳减排具有显著的规模效应、结构效应,通过挤占货物贸易规模、提升服务业水平抑制碳排放;数字贸易对发达经济体的碳减排效应更强。为此,文章提出各国应该大力培育数字贸易,持续推动产业转型升级,加强科技创新与数字技术研发,优化数字贸易发展的制度环境。

关键词：数字贸易数字经济碳减排传导机制

Comparing Ordinary Kriging and Regression Kriging for soil Properties in Contrasting Landscapes

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Pedosphere 2010年第5期20卷 594-606页

作者： Q.ZHU H.s.LIN Department of Crop and soil sciences 116 ASI BuildingThe Pennsylvania State UniversityUniversity ParkPA 16802(USA)

The accuracy between ordinary kriging and regression kriging was compared based on the combined consideration of sample size,spatial structure,and auxiliary variables(terrain indices and electromagnetic induction surveys) for a variety of soil properties in two contrasting landscapes(agricultural ***).When spatial structure could not be well captured by point-based observations(e.g.,when the ratio of sample spacing over correlation range was > 0.5),or when a strong relationship existed between target soil properties and auxiliary variables(e.g.,their R2 was > 0.6),regression kriging(RK) was more accurate for interpolating soil properties in both landscapes ***,ordinary kriging(OK) was *** depth and wetness condition did not appear to affect the selection of kriging for soil moisture interpolation,because they did not significantly change the ratio of sample spacing over correlation range and the relationship with the auxiliary *** of a smaller ratio of elevation change over total study area(E/A = 1.2) and multiple parent materials in the agricultural land,OK was generally more accurate in that *** contrast,a larger E/A ratio of 6.8 and a single parent material led to RK being preferable in the steep-sloped forested *** results from this study can be useful for selecting kriging for various soil properties and landscapes.

关键词： geostatistics soil moisture spatial interpolation spatial structure

Impacts of a Japan–south Korea power system interconnection on the competitiveness of electric power companies according to power exchange prices

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Global Energy Interconnection 2020年第3期3卷 292-302页

作者： Romain Zissler Jeffrey s.Cross school of Environment and society Tokyo Institute of Technology2-12-1 OokayamaMeguro-kuTokyo 152-8550Japan

In many regions,international power system interconnections provide economic,energy-security,environmental,and technical *** contrast,such interconnections remain scarce in Northeast *** 2016,after approving a joint memorandum of understanding between major electric power companies from China,Japan,south Korea,and Russia,related initiatives regained momentum in the ***,the corresponding developments in Japan remain limited,mainly owing to the lack of involvement of Japanese electric power *** study represents a pioneering attempt to provide an economic assessment based on power exchange prices of a power system interconnection between Japan and south Korea regarding the competitiveness of electric power companies in terms of competitive business segments and strategic *** found that although the position of Japanese generators may slightly deteriorate,that of the supply segment would substantially improve,thus suggesting that more opportunities than threats are derived from the *** promising outcome may foster the adoption of an interconnection with south Korea considering the positive economic and business perspectives in ***,realizing the interconnection may improve the energy security and air quality in the region.

关键词： Electricity grid interconnection Japan south Korea Electric power company Power exchange price

Analytical approximations to a generalized forced damped complex Duffing oscillator:multiple scales method and KBM approach

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Communications in Theoretical Physics 2023年第2期75卷 18-27页

作者： Weaam Alhejaili Alvaro H salas s A El-Tantawy Department of Mathematical sciences College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Department of Mathematics and statistics Universidad Nacional de ColombiaFIZMAKO Research GroupColombia Department of Physics Faculty of SciencePort Said UniversityPort Said 42521Egypt Research Center for Physics(RCP) Department of PhysicsFaculty of Science and ArtsAl-MikhwahAl-Baha UniversitySaudi Arabia

In this investigation,some different approaches are implemented for analyzing a generalized forced damped complex Duffing oscillator,including the hybrid homotopy perturbation method(H-HPM),which is sometimes called the Krylov-Bogoliubov-Mitropolsky(KBM)method and the multiple scales method(MsM).All mentioned methods are applied to obtain some accurate and stable approximations to the proposed problem without decoupling the original *** obtained approximations are discussed graphically using different numerical values to the relevant ***,all obtained approximate solutions are compared with the 4thorder Runge-Kutta(RK4)numerical *** maximum residual distance error(MRDE)is also estimated,in order to verify the high accuracy of the obtained analytic approximations.

关键词： complex Duffing oscillators forced damped complex oscillator multiple scales method KBM method