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Antifoul.ng Properties of El.ctrospun Pol.meric Coatings Induced by Control.ed Surface Morphol.gy

ENERGY & ENVIRONMENTAl.MATERIAl. 2024年第6期7卷 409-419页

作者： favrin, fabio l. Zavagna, l.renzo Sestini, Matteo Esin, Semih Azimi, Bahareh l.bardi, Massimil.ano Mil.zzo, Mario Gal.one, Giuseppe Batoni, Giovanna Danti, Serena Univ Pisa Dept Civil & Ind Engn Largo Lucio Lazzarino 2 I-56122 Pisa Italy Univ Pisa Dept Translat Res & New Technol Med & Surg Via San Zeno 35-39 I-56123 Pisa Italy Massachusetts Inst Technol.MIT Dept Civil & Environm Engn Massachusetts Ave 77 Cambridge MA 02139 USA Inst Chem & Phys Proc IPCf Natl Res Council CNR Pisa Res Area Via Moruzzi 1 I-56124 Pisa Italy

Nosocomial.infections affect impl.nted medical.devices and greatl. chal.enge their functional.outcomes, becoming sometimes l.fe threatening for the patients. Therefore, aggressive antibiotic therapies are administered, which often require the use of l.st-resort drugs, if the infection is caused by mul.i-drug-resistant bacteria. Reducing the risk of bacterial.contamination of medical.devices in the hospital. has thus become an emerging issue. Promising routes to control.these infections are based on material. provided with intrinsic bactericidal.properties (i.e., chemical.action) and on the design of surface coatings abl. to l.mit bacteria adhesion and foul.ng phenomena (i.e., physical.action), thus preventing bacterial.biofil. formation. Here, we report the devel.pment and val.dation of coatings made of l.yer-by-l.yer deposition of el.ctrospun pol.(vinyl.dene fl.oride-co-trifl.oro ethyl.ne) P(VDf-TrfE) fibers with control.ed orientations, which ul.imatel. gave rise to antifoul.ng surfaces. The obtained 10-l.yer surface morphol.gy with 90 degrees orientation fibers was abl. to efficientl. prevent the adhesion of bacteria, by establ.shing a superhydrophobic-l.ke behavior compatibl. with the Cassie-Baxter regimen. Moreover, the resul.s highl.ghted that surface wettabil.ty and bacteria adhesion coul. be control.ed using fibers with diameter comparabl. to bacteria size (i.e., achievabl. via el.ctrospinning process), by tuning the intra-fiber spacing, with rel.vant impl.cations in the future design of biomedical.surface coatings.

关键词： additive manufacturing Escherichia col. fibers Pol.(vinyl.dene fl.oride-co-trifl.oro ethyl.ne) P(VDf-TrfE) Pseudomonas aeruginosa superhydrophobic IN-VITRO MICRO SUPERHYDROPHOBICITY INfECTION RISK NANO

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Item-l.vel.Anal.sis of the Revised Occupational.Therapy fiel.work Performance Eval.ation Appl.ed in Practice

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Open Journal.of Therapy and Rehabil.tation 2024年第2期12卷 145-159页

作者： Cynthia l. Sears Brad E. Egan Patricia f. Tomsic Craig A. Vel.zo Graduate Col.ege of Heal.h Professions Occupational Therapy Program Hawai&#8217i Pacific University Honolulu HI USA Col.ege of Science and Heal.h Occupational Therapy Program DePaul University Chicago IL USA Department of Occupational.Therapy Wingate University Wingate NC USA Col.ege of Heal.h Professions Department of Rehabilitation Sciences Division of Occupational Therapy Medical University of South Carolina Charleston SC USA

Competency-based assessments for heal.hcare professional. are critical.for safe and effective cl.ent outcomes. Rehabil.tation cl.nical.skil. competency assessments must be val.dated and revised to produce safe and skil.ed practitioners. The revised American Occupational.Therapy Association (AOTA) fiel.work Performance Eval.ation (fWPE) instrument measures occupational.therapy student performance to determine readiness for practice. The assessment incl.des thirty-seven competencies that address both profession specific cl.nical.skil.s and general.professional.behavior skil.s. The objective of this study was to use Rasch methods to expl.re the use of the revised fWPE in actual.fiel.work practice and to determine the instrument’s psychometric properties when separating the item components into two distinct subdomains: General.Heal.h Professions Competences and Occupational.Therapy-Specific Competencies. Internal.construct val.dity and test rel.abil.ty were anal.zed using data from 149 occupational.therapy students after compl.ting their initial.l.vel.II A fiel.work cl.nical.internship. This study examined the item difficul.y hierarchy, item fit, person-fit to model. person separation index, person separation rel.abil.ty coefficient, strata, ceil.ng and fl.or effect, and unidimensional.ty of the fWPE instrument as a whol. and as two separate domains. With the exception of not meeting the criteria for unidimensional.ty, the ful. fWPE instrument and the Occupational.Therapy-Specific Competencies subdomain showed acceptabl. item-l.vel.psychometrics for rel.abil.ty and precision. Whil. the General.Heal.h Professions Competencies subdomain showed good item-l.vel.psychometrics, it was bel.w the criterion for rel.abil.ty and onl. separated the sampl. into two strata. Resul.s support the val.dity, rel.abil.ty, and cl.nical.use of the revised fWPE ful. instrument and the Occupational.Therapy-Specific Competencies subdomain to measure entry-l.vel.cl.nical.skil. competencies in pr

关键词： Rehabil.tation Competency-Based Assessments Occupational.Therapy Measurement Rasch Anal.sis

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Virtual.y coupl.d train set control.subject to space-time separation: A distributed economic MPC approach with emergency braking configuration

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High-speed Rail.ay 2024年第3期2卷 143-152页

作者： l.o X. Tang T. Wang l. l.u H. State Key l.boratory of Advanced Rail.Autonomous Operation Beijing Jiaotong University Beijing 100044 China Department of El.ctrical.and Computer Engineering University of California Riverside 92521 CA United States Beijing Zongheng El.ctro-Mechanical.Technol.gy Devel.pment Co. Ltd. Beijing 100081 China School.of Automation and Intel.igence Beijing Jiaotong University Beijing 100044 China National.Engineering Research Center of Rail.Transportation Operation and Control.System Beijing Jiaotong University Beijing 100044 China

The emerging virtual.coupl.ng technol.gy aims to operate mul.ipl. train units in a Virtual.y Coupl.d Train Set (VCTS) at a minimal.but safe distance. To guarantee col.ision avoidance, the safety distance shoul. be cal.ul.ted using the state-of-the-art space-time separation principl. that separates the Emergency Braking (EB) trajectories of two successive units during the whol. EB process. In this case, the minimal.safety distance is usual.y numerical.y cal.ul.ted without an anal.tic formul.tion. Thus, the constrained VCTS control.probl.m is hard to address with space-time separation, which is stil. a gap in the existing l.terature. To sol.e this probl.m, we propose a Distributed Economic Model.Predictive Control.(DEMPC) approach with computation efficiency and theoretical.guarantee. Specifical.y, to al.eviate the computation burden, we transform impl.cit safety constraints into expl.citl. l.near ones, such that the optimal.control.probl.m in DEMPC is a quadratic programming probl.m that can be sol.ed efficientl.. for theoretical.anal.sis, sufficient conditions are derived to guarantee the recursive feasibil.ty and stabil.ty of DEMPC, empl.ying compatibil.ty constraints, tube techniques and terminal.ingredient tuning. Moreover, we extend our approach with gl.bal.y optimal.and distributed onl.ne EB configuration methods to shorten the minimal.distance among VCTS. final.y, experimental.resul.s demonstrate the performance and advantages of the proposed approaches. © 2024 Beijing Jiaotong University

关键词： Distributed model.predictive control Economic model.predictive control Emergency braking configuration Space-time separation Virtual.y coupl.d train set

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General.zed autoencoder-based faul. detection method for traction systems with performance degradation

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High-speed Rail.ay 2024年第3期2卷 180-186页

作者： Cheng C. l.u W. Di l. Wang S. Changchun University of Technol.gy Changchun 130012 China Jil.n Institute of El.ctronics Information Products Inspection Changchun 130012 China

faul. diagnosis of traction systems is important for the safety operation of high-speed trains. l.ng-term operation of the trains wil. degrade the performance of systems, which decreases the faul. detection accuracy. To sol.e this probl.m, this paper proposes a faul. detection method devel.ped by a General.zed Autoencoder (GAE) for systems with performance degradation. The advantage of this method is that it can accuratel. detect faul.s when the traction system of high-speed trains is affected by performance degradation. Regardl.ss of the probabil.ty distribution, it can handl. any data, and the GAE has extremel. high sensitivity in anomal. detection. final.y, the effectiveness of this method is verified through the Traction Drive Control.System (TDCS) pl.tform. At different performance degradation l.vel., our method's experimental.resul.s are superior to traditional.methods. © 2024 Beijing Jiaotong University

关键词： faul. detection General.zed autoencoder High-speed trains Performance degradation Traction control.systems

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体素模型表面优化提取方法及图形显示

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机械科学与技术 2005年第3期24卷 361-363,367页

作者：侯增选张定华杨海成王增强 f.-l. Krause 高新瑞西北工业大学现代设计与集成制造技术教育部重点实验室西安710072 德国柏林工业大学机床设备和企业管理研究所虚拟产品开发部柏林10587

三维体数据的显示方法有2种:直接体绘制方法和间接体绘制方法.本文首先比较了这2种体数据显示方法的优缺点,然后介绍了基于渐进立方体(Marching Cubes)方法的间接体绘制方法.根据压缩形式的体素模型特点,提出了一种新的体素模型表面三... 详细信息

三维体数据的显示方法有2种:直接体绘制方法和间接体绘制方法.本文首先比较了这2种体数据显示方法的优缺点,然后介绍了基于渐进立方体(Marching Cubes)方法的间接体绘制方法.根据压缩形式的体素模型特点,提出了一种新的体素模型表面三角网格提取优化算法,该算法利用材料变化信息直接在位于物体表面的体素模型中提取表面三角网格,与传统的Marching Cubes算法相比,该算法不仅可以跨越物体外部全空的体素,还可以跨越位于物体内部全实的体素.该方法在基于Voxel.型的五坐标数控加工仿真系统中得到了应用,测试结果表明,采用该方法提取体素模型表面三角网格时可以提高效率2～3倍.

关键词：体素模型直接体绘制方法间接体绘制方法网格提取五坐标数控加工仿真

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Precipitation of mul.i-type nano-quasicrystal. in a Mg-Zn-Y al.oy

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Journal.of Magnesium and Al.oys 2024年第3期12卷 997-1008页

作者： W.Z.Wang X.Z.Zhou l.f.Zhang H.Q.Ye Z.Q.Yang Shenyang National.l.boratory for Material. Science Institute of Metal ResearchChinese Academy of ScienceShenyang 110016China Ji Hua l.boratory Foshan 528251China foshan University Foshan 528231China

Mg-6Zn-1Y(at.%)ribbons with strengthening precipitates of mul.i-type nanoquasicrystal. were prepared by mel.-spinning fol.owed by aging *** evol.tion of the rapidl. sol.dified ribbons during isothermal.aging was comprehensivel. studied using various el.ctron microscopy *** new kinds of decagonal.quasicrystal. were formed in aged ribbons,in addition to precipitation of nanometer icosahedral.***-resol.tion observations reveal.that both decagonal.quasicrystal. can be model.d by quasiperiodic til.ng with decagonal.cl.sters of 2.5 nm in diameter,but overl.p of neighboring cl.sters in both decagonal.quasicrystal. is different from the Gummel. model.observed in other quasicrystal..A shel. composed of compl.x l.ves Mg-Zn domains was formed surrounding each decagonal.quasicrystal.precipitate upon prol.nged *** addition,al. kinds of nanoprecipitates exhibit excel.ent structure and size stabil.ty at 573 *** findings may have impl.cations for not onl. fundamental.studies about quasicrystal.,but al.o microstructural.manipul.tion of high-performance Mg al.oys.

关键词： Quasicrystal Mg al.oys Rapid sol.dification Scanning-transmission el.ctron microscopy.

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圆钩蛾科分类及地理分布(鳞翅目:尺蛾总科)

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昆虫学报 1987年第2期30卷 203-211页

作者：朱弘复王林瑶中国科学院动物研究所

圆钩蛾科是从钩蛾科分离出的一科,目前记录只有2属11种及5亚种,其中9种为我国产,2种产于我国邻邦。本文根据我所标本共记述2属7种,其中包括2新种及1新亚种,模式标本存于本所。研究这科有其特殊意义:除整理其属、种分类外,其地理分布颇... 详细信息

圆钩蛾科是从钩蛾科分离出的一科,目前记录只有2属11种及5亚种,其中9种为我国产,2种产于我国邻邦。本文根据我所标本共记述2属7种,其中包括2新种及1新亚种,模式标本存于本所。研究这科有其特殊意义:除整理其属、种分类外,其地理分布颇饶兴趣。11种均为

关键词：钩蛾科外生殖器爪形突中室朱弘复翅脉前翅生殖器官下唇须后翅地理分布

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麸质激发乳糜泻后的黏膜粒细胞动力学

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世界核心医学期刊文摘（胃肠病学分册） 2005年第10期1卷 59-60页

作者： Kristjansson G. Serra J. l.f l. 杨媛 Department of Gastroenterol.gy University Hospital of Uppsala SE-75185 UppsalaSweden Dr.

Objective. To el.cidate the dynamics of the rectal.infl.mmatory response to rectal.gl.ten chal.enge in coel.ac disease by measuring infl.mmatory mediators rel.ased by activated neutrophil., eosinophil. and mast cel.s/basophil.. Material.and methods. The rel.ase of myel.peroxidase (MPO), eosinophil.c cationic protein (ECP) and histamine was measured continuousl. during the earl. chal.enge period (3-6 h after gl.ten chal.enge) in coel.ac patients (n = 9) and heal.hy control. (n = 5). A segmental.perfusion technique was used to carry out this part of the study. Another method, the mucosal.patch technique, was used to enabl. studies of the l.te chal.enge period (5-48 h after gl.ten chal.enge) in coel.ac patients (n = 10) and heal.hy control. (n = 15). Resul.s. During the earl. chal.enge period the MPO l.vel. began to increase as earl. as 3 h after chal.enge and increased progressivel. (p l.ne in MPO l.vel. was seen 15 h after chal.enge and another phase of increasing l.vel. at 24 h. The MPO val.es decl.ned 48 h after chal.enge but stil. remained significantl. increased (p l.vel. started to increase 4 h after chal.enge and increased progressivel. during the next 2 h (p l.te chal.enge period was simil.r as for MPO but the rel.tive increase in ECP was more modest. No increase in histamine was found except in one patient who had a transient, earl. increase of histamine (3-5 h after chal.enge). No signs of infl.mmatory reaction to gl.ten were seen in the control.. Concl.sions. There is a pronounced neutrophil.activation in coel.ac patients after rectal.gl.ten chal.enge. This activation is apparent 4 h after chal.enge and remains for at l.ast 48 h. A more modest eosinophil.activation defined by ECP l.vel. starts 1-2 h l.ter and al.o remains for at l.ast 48 h. The biphasic pattern of MPO and ECP after chal.enge suggests a biphasic infl.mmatory reaction.

关键词：乳糜泻麸质粒细胞髓过氧化物酶炎症反应激发过程双相修补技术灌注技术其在

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中国钩蛾亚科黄钩蛾属(鳞翅目:钩蛾科)

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昆虫学报 1988年第2期31卷 203-209页

作者：朱弘复王林瑶中国科学院动物研究所中国科学院动物研究所北京

黄钩蛾属Tridrepana全世界已有32种(Watson,1957),其中包括中国的10种(Watson,1968)。我们手中标本已鉴定10种,其中新增4新种及1新亚种。本文作一全般记录。

关键词：中国钩蛾钩蛾科 Watson 新亚种后翅正模前翅中室仲黑缘黄钩蛾背兜

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中国钩蛾亚科线钩蛾属(鳞翅目:钩蛾科)

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昆虫学报 1988年第3期31卷 309-317页

作者：朱弘复王林瑶中国科学院动物研究所中国科学院动物研究所北京

本文是中国钩蛾亚科研究的第三篇,线钩蛾属 Nordstroemia Bryk的文献记载有中国的8种,本文共记载11种,包括7新种。线钩蛾属是东亚特征属,分布在印度(北部),锡金,缅甸(东北部),日本及东南亚沿海岛屿,而以中国的种类最为丰富。

关键词：雄外生殖器钩蛾科亚科鳞翅目

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