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Twisted fiber microfluidics:a cutting-edge approach to 3D spiral devices

Microsystems & Nanoengineering 2024年第1期10卷 193-202页

作者： Shunsuke Kato daniel w.carlson Amy Q.Shen Yuanyuan Guo Department of Electrical Information and Physics EngineeringSchool of EngineeringTohoku UniversityAoba-kuSendai 980-8579 MiyagiJapan Micro/Bio/Nanofluidics Unit Okinawa Institute of Science and TechnologyOnnaKunigami-gun 904-0495 OkinawaJapan Frontier Research Institute for Interdisciplinary Sciences(FRIS) Tohoku UniversityAoba-kuSendai 980-0845 MiyagiJapan Graduate School of Biomedical Engineering Tohoku UniversityAoba-kuSendai 980-8579 MiyagiJapan Department of Physiology Graduate School of MedicineTohoku UniversityAoba-kuSendai 980-8575 MiyagiJapan

The development of 3D spiral microfluidics has opened new avenues for leveraging inertial focusing to analyze small fluid volumes,thereby advancing research across chemical,physical,and biological *** traditional straight microchannels rely solely on inertial lift forces,the novel spiral geometry generates Dean drag forces,eliminating the necessity for external fields in fluid ***,fabricating 3D spiral microfluidics remains a labor-intensive and costly endeavor,hindering its widespread ***,conventional lithographic methods primarily yield 2D planar devices,thereby limiting the selection of materials and geometrical *** address these challenges,this work introduces a streamlined fabrication method for 3D spiral microfluidic devices,employing rotational force within a miniaturized thermal drawing process,termed as *** innovation allows for rapid prototyping of twisted fiber-based microfluidics featuring versatility in material selection and heightened geometric *** validate the performance of these devices,we combined computational modeling with microtomographic particle image velocimetry(uTPiM)to comprehensively characterize the 3D flow *** results corroborate the presence of a steady secondary flow,underscoring the effectiveness of our *** 3D spiral microfluidics platform paves the way for exploring intricate microflow dynamics,with promising applications in areas such as drug delivery,diagnostics,and lab-on-a-chip systems.

关键词： thereby straight twisted

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Surgical treatment of synovial-collagen disorders of the hand

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Plastic and Aesthetic Research 2015年第1期2卷 47-50页

作者： H.Kirk watson Purnell Traverso Lois carlson daniel Mastella Ronit wollstein Department of Orthopedic Surgery Division of Hand and Upper Extremity SurgeryThe Hand CenterGlastonburyCT 06033USA Department of Orthopedic Surgery The Technion School of MedicineHaifa 31096Israel Department of Plastic Surgery University of Pittsburgh Medical SchoolPittsburghPA 15261USA

Critical relationships between collagen and synovium exist and affect the function of the *** these relationships enhances the ability to perform surgery including procedures addressing soft tissue and joint *** prese... 详细信息

关键词： Collagen hand plastic surgery synovium

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Effects of a remote,YouTube-delivered exercise intervention on young adults’physical activity,sedentary behavior,and sleep during the COVID-19 pandemic:Randomized controlled trial

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Journal of Sport and Health Science 2022年第2期11卷 145-156,I0002页

作者： daniel J.McDonough Melina A.Helgeson wenxi Liu Zan Gao School of Kinesiology University of Minnesota-Twin CitiesMinneapolisMN 55455USA carlson School of Management University of Minnesota-Twin CitiesMinneapolisMN 55455USA

Background:Public health guidelines have called for innovative and flexible physical activity(PA)intervention strategies to promote PA and health amid the coronavirus disease 2019(COVID-19)***,this study’s purpose was to examine the effects of a home-based,YouTube-delivered PA intervention grounded in self-determination theory on young adults’free-living PA,sedentary behavior,and sleep quality(NCT04499547).Methods:Sixty-four young adults(48 females;age=22.8±3.4 years,mean±SD;body mass index=23.1±2.6 kg/m^(2))were randomized(1:1)into the intervention group,which received weekly aerobic and muscle-strengthening PA videos,or control group,which received weekly general health education videos,for 12 *** primary outcome was free-living moderate-to-vigorous PA(MVPA)and our secondary outcomes were sedentary behavior,light PA,and sleep quality(measured using ActiGraph accelerometers)along with muscle-strengthening PA frequency,self-determination theory-related motivation(non-regulation,external regulation,introjected regulation,identified regulation,integrated regulation,and intrinsic regulation),and perceived PA barriers(assessed using validated questionnaires).Repeated measures analysis of variances(ANOVAs)examined between-group differences at an adjusted significance level of 0.004 and effect sizes as partial eta-squared(η;).Results:we observed statistically significant interaction effects for MVPA,sleep efficiency,muscle-strengthening PA frequency,non-regulation,integrated regulation,intrinsic regulation,and perceived PA barriers(F(1,62)=10.75-77.67,pwith all outcomes favoring the intervention *** observed no statistically significant differences in either group for sedentary behavior,light PA,sleep duration,or external,introjected,and identified regulations after 12 weeks(F(1,62)=1.11-3.64,p=0.06-0.61).Conclusion:with national COVID-19 restrictions still in place and uncertainty regarding post-pandemic PA envir

关键词： High-intensity interval training Resistance-training Self-determination theory Social media Video

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音乐屋——奥尔堡创意中心

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城市环境设计 2020年第4期126卷 174-185页

作者：沃尔夫·狄·普瑞克斯 Marcelo Bernardi Jesper Bork Bo Stjerne Hansen Roberta Jiraschek daniel Krüger Carsten Laursen Martin Oberascher Florian Pfeifer Robert Pippan Marita Schnepper Sigrid Svensson Eva wolf Carola B?ker Moa carlson Isak Foged Annina G?hwiler Patricia Gola Robin Heather Per Kruse win Man Ruth Mandl Aline Müller Tenna Olsen Anke Pasolt Annemarie Pedersen Eva Ravnborg Carolin Schmitz-Remberg Tim Seidl Guro Sollid Michele Zanella Jan-Ruben Fischer Markus Pillhofer Markus Baumann Robin Heather Anja Sorger Bo Stjerne Thomsen Anna wasserthal Philip wilck Blaine Lepp Talya Kozminsky Hannes walzl Morten Grau Jensen Stephanie Neufeld Tyler Bornstein Laura Githa Julia G?rtner Jenny Draxlbauer Duccio Malagamba Martin Schubert

项目大事记/CHRONOLOGY竞赛（第一名）/Competition （1st Place）:2003一期规划设计/Layout Planning Ho M I:2003—2005项目延期/Postponement of the Project:2006—2007二期规划设计/Start of Layout Planning Ho M II:2008二期动工/Start of Construction Ho M II:2010二期竣工/Completion Ho M II:2014项目参数/PROJECT DATA建筑净面积/Net Floor Area:17 637m2建筑毛面积/Gross Floor Area:20 257m2音乐厅/Concert Hall:1 298座/1 289 Seats

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