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TWrist:An agile compliant 3-DoF tensegrity joint

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Biomimetic Intelligence & Robotics 2024年第3期4卷 34-46页

作者： Tianyuan Wang Mark A.Post andy M.Tyrrell School of Physics Engineering and TechnologyUniversity of YorkYork YO105DDUnited Kingdom

Tensegrity structures,with their unique physical characteristics,hold substantial potential in the field of ***,the very structures that will give tensegrity robots potential advantages over traditional robots also hold long term *** to the inherent high redundancy of tensegrity structures and the employment of tension elements,tensegrity robots exhibit excellent stability,compliance,and flexibility,although this also results in lower structural deformation *** research has endeavoured to enhance the motion performance of tensegrity robots,exploring diverse approaches such as actuation schemes,structure design,aligned with control ***,the physical constraints of the elements in such structures and the absence of suitable controllers impede further advancements in the usefulness of tensegrity *** paper presents a novel design based on an under constrained transition region design and a tailored control approach based on inverse kinematics,improving the motion performance of the proposed novel tensegrity *** this approach,the tensegrity joint,while preserving the advantages of compliance and flexibility expected from tensegrity structures,offers three degrees of rotational freedom,mirroring the controllability of conventional rigid-body *** results demonstrate the capability of tensegritybased robotic joints to provide flexible actuation under situations demanding high *** integration of structure design with a tailored control approach offers a pioneering model for future development of tensegrity robots,underscoring the practical viability of tensegrity structures in the realm of robotics.

关键词： Tensegrity Soft robot Tensegrity control Robot manipulator

Single atom catalyst by atomic layer deposition technique

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Chinese Journal of Catalysis 2017年第9期38卷 1508-1514页

作者： Niancai Cheng Xueliang(andy) Sun Department of Mechanical and Materials Engineering University of Western Ontario London ON N6A 5B9 Canada College of Materials Science and Engineering Fuzhou University Fuzhou 350108 Fujian China

Noble single‐atom catalysts have rapidly been attracting attention due to their unique catalytic properties and maximized *** layer deposition(ALD)is an emerging powerful technique for large‐scale synthesis of stable single *** this review,we summarize recent developments of single atom synthesized by ALD as well as explore future research direction and trends.

关键词： Single‐atom Atomic layer deposition Catalysis Noble catalyst Mechanism

Core Stability：History and Current Issues

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中国运动医学杂志 2010年第4期29卷 477-480页

作者： andy Waldhelm Li Li Louisiana State University Baton Rouge LA USA

Introduction Low back pain is a significant health problem facing individuals *** has been theorized,that one of the factors associated with low back pain is

关键词：脊柱流动性治疗方法临床分析

A COMPARISON OF SEALED AND VENTILATED ATTIC SPACES: A CASE STUDY OF RESIDENTIAL ATTIC DESIGN

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Journal of Green Building 2018年第3期13卷 89-100页

作者： Aneurin Grant Glenda Mayo andy Heitman Department of Instructional Workforce and Applied Technology University of West FloridaPensacolaFL The William States Lee College of Engineering Engineering Technology and Construction ManagementUniversity of North Carolina Charlotte Building Energy Sciences PensacolaFL

Two attics were constructed as part of a building renovation project at the University of West *** first attic is described as a traditional ventilated attic,with open-ings in the soffits and a small dormer vent on the *** second attic is described as a sealed attic(with no ventilation),and open-cell spray foam insulation installed on the underside of the roof *** study was undertaken to demonstrate hypoth-esized performance differences between attic *** and relative humidity sensors were installed to measure the condition of the air in the two attics spaces,and measurements were taken at 15 minute *** of relative humidity were later calculated as dew point and specific *** studies are often conducted by comparison of attics in separate buildings under different use *** project offers a unique opportunity to explore data collected from a single structure,and provides support for existing research on attic design in southern *** resultant data show significant differences in attic temperatures,with the sealed attic exhibiting a much more thermally stable *** were also significant differences in attic dew points and specific humidity,although these dif-ferences appear to be much less *** were analyzed using independent t-tests to establish significant differences between ***,the sealed attic performed better than the ventilated attic,although dew point and specific humidity remain concerns.

关键词： energy efficiency sealed attic ventilated attic roof design residential construction cool roof

Using spatial indicators to predict ventilation and energy performance-correlation analysis for an apartment building in five Chinese cities

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Frontiers of Architectural Research 2019年第2期8卷 175-190页

作者： Xiaoyu DU Regina Bokel andy van den Dobbelsteen Faculty of Architecture and the Built Environment Delft University of TechnologyDelftthe Netherlands Faculty of Architecture and Urban Planning Chongqing UniversityChongqingChina

In the early design stages,architects are in constant search of a design direction that can determine the success or failure of the final ***,in real design practice,most of the prediction methods for building performances,in this paper energy and thermal comfort,are utilised in the later design *** configuration is one of the most important issues for architectural design in the early design *** study investigates the correlations between the spatial indicators connected with architectural design and the building physics indicators ventilation performance and energy *** main objective is to explore the potential of applying spatial indicators using space syntax to predict ventilation performance and energy performance in order to support architects for the evaluation of their concepts and schemes in early design *** layout of a high-rise apartment in China in five different cities is chosen as a case *** results show that the selected three indicators:connectivity value,air change rate and annual cooling saving ratio are linearly correlated,not just at building level but also at room level.R2,the correlation coefficient of determination,is between 0.53 and 0.90(except for the case of Chongqing at building level).

关键词： Space syntax Air change rate Annual cooling saving ratio Connectivity Correlation analysis

Using the ROSS optical streak camera as a tool to understand laboratory experiments of laser-driven magnetized shock waves

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High Power Laser Science and Engineering 2018年第2期6卷 63-68页

作者： andy Liao Patrick Hartigan Gennady Fiksel Brent Blue Peter Graham John Foster Carolyn Kuranz Rice University USA University of Michigan-Ann Arbor USA Lawrence Livermore National Laboratory USA Awe Plc UK

Supersonic flows with high Mach number are ubiquitous in astrophysics. High-powered lasers also have the ability to drive high Mach number, radiating shock waves in laboratory plasmas, and recent experiments along these lines have made it possible to recreate analogs of high Mach-number astrophysical flows under controlled conditions. Streak cameras such as the Rochester optical streak system(ROSS) are particularly helpful in diagnosing such experiments,because they acquire spatially resolved measurements of the radiating gas continuously over a large time interval,making it easy to observe how any shock waves and ablation fronts present in the system evolve with time. This paper summarizes new ROSS observations of a laboratory analog of the collision of a stellar wind with an ablating planetary atmosphere embedded within a magnetosphere. We find good agreement between the observed ROSS data and numerical models obtained with the FLASH code, but only when the effects of optical depth are properly taken into account.

关键词： laser optical systems plasma astrophysics

A COMPARATIVE STUDY:DESIGN STRATEGIES FOR ENERGY-EFFICIENCY OF HIGH-RISE OFFICE BUILDINGS

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Journal of Green Building 2016年第1期11卷 134-158页

作者： Babak Raji Martin J.Tenpierik andy van den Dobbelsteen Faculty of Architecture and the Built Environment Delft University of TechnologyDelftthe Netherlands

Tall buildings are being designed and built across a wide range of cities.A poorly designed tall building can tremendously increase the building’s appetite for ***,this paper aims to determine the design strategies that help a high-rise office building to be more energy *** this purpose,a comparative study on twelve case buildings in three climate groups(temperate,sub-tropical&tropical)was *** exterior envelope,building form and orientation,service core placement,plan layout,and special design elements like atria and sky gardens were the subject of *** of different design strategies for reducing the cooling,heating,ventilation and electric lighting energy ***,lessons from these buildings’were defined for the three ***,a compari-son of building energy performance data with international benchmarks confirmed that in temperate and sub-tropical climates sustainable design strategies for high-rise buildings were performing well,as a result leading to lower energy ***,for the tropics the design of high-rise buildings needs additional consideration.

关键词： design strategies for energy efficient tall buildings building energy performance sustainability and climate type

Biodiversity effects and transgressive overyielding

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Journal of Plant Ecology 2008年第2期1卷 95-102页

作者： Bernhard Schmid andy Hector Prasenjit Saha Michel Loreau Institute of Environmental Sciences University of ZurichWinterthurerstrasse 190CH-8057 ZurichSwitzerland Physics Institute University of ZurichWinterthurerstrasse 190CH-8057 ZurichSwitzerland Department of Biology McGill University1205 ave Docteur PenfieldMontrealQuebecCanada H3A 1B1

Aims The potential for mixtures of plant species to produce more biomass than every one of their constituent species in monoculture is still controversially discussed in the *** we tested how this socalled transgressive overyielding is affected by variation between and within species in monoculture yields in biodiversity *** We use basic statistical principles to calculate expected maximum monoculture yield in a species pool used for a biodiversity *** a real example we show how between-and withinspecies variance components in monoculture yields can be *** the two components we estimate the importance of sampling bias in transgressive overyielding *** Findings The net biodiversity effect(difference between mixture and average monoculture yield)needed to achieve transgressive overyielding increases with the number of species in a mixture and with the variation between constituent species in monoculture *** there is no significant variation between species,transgressive overyielding should not be calculated using the best monoculture,because in this case the difference between this species and the other species could exclusively reflect a sampling *** sampling bias decreases with increasing variation between *** for transgressive overyielding require replicated species’***,it can be doubted whether such an emphasis on monocultures in biodiversity experiments is justified if an analysis of transgressive overyielding is not the major goal.

关键词： biodiversity experiments mixtures monocultures overyielding analysis sampling bias

Rethinking the necessity of low glucose intervention for cerebral ischemia/reperfusion injury

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Neural Regeneration Research 2022年第7期17卷 1397-1403页

作者： Jiahua Xie Farooqahmed S.Kittur P.andy Li Chiu-Yueh Hung Department of Pharmaceutical Sciences Biomanufacturing Research Institute&Technology EnterpriseNorth Carolina Central UniversityDurhamNCUSA

Glucose is the essential and almost exclusive metabolic fuel for the *** stroke caused by a blockage in one or more cerebral arteries quickly leads to a lack of regional cerebral blood supply resulting in severe glucose deprivation with subsequent induction of cellular homeostasis disturbance and eventual neuronal *** make up ischemiamediated adenosine 5′-triphosphate depletion,glucose in the ischemic penumbra area rapidly enters anaerobic metabolism to produce glycolytic adenosine 5′-triphosphate for cell *** appears that an increase in glucose in the ischemic brain would exert favorable *** notion is supported by in vitro studies,but generally denied by most in vivo *** studies to manage increased blood glucose levels after stroke also failed to show any benefits or even brought out harmful effects while elevated admission blood glucose concentrations frequently correlated with poor ***,strict glycaemic control in clinical practice also failed to yield any beneficial *** controversial results from glucose management studies during the past three decades remain a challenging question of whether glucose intervention is needed for ischemic stroke *** review provides a brief overview of the roles of cerebral glucose under normal and ischemic conditions and the results of managing glucose levels in non-diabetic ***,the relationship between blood glucose and cerebral glucose during the ischemia/reperfusion processes and the potential benefits of low glucose supplements for non-diabetic patients are discussed.

关键词： blood-brain barrier blood glucose cerebral glucose glucose intervention glucose transporter glycosylation induced hyperglycemia ischemic penumbra ischemic stroke non-diabetic patients