Current multiscale topology optimization restricts the solution space by enforcing the use of a few repetitive microstructures that are predetermined,and thus lack the ability for structural concerns like buckling str...
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Current multiscale topology optimization restricts the solution space by enforcing the use of a few repetitive microstructures that are predetermined,and thus lack the ability for structural concerns like buckling strength,robustness,and ***,in this paper,a new multiscale concurrent topology optimization design,referred to as the self-consistent analysis-based moving morphable component(SMMC)method,is *** with the conventional moving morphable component method,the proposed method seeks to optimize both material and structure simultaneously by explicitly designing both macrostructure and representative volume element(RVE)-level *** examples with transducer design requirements are provided to demonstrate the superiority of the SMMC method in comparison to traditional *** proposed method has broad impact in areas of integrated industrial manufacturing design:to solve for the optimized macro and microstructures under the objective function and constraints,to calculate the structural response efficiently using a reduced-order model:self-consistent analysis,and to link the SMMC method to manufacturing(industrial manufacturing or additive manufacturing)based on the design requirements and application areas.
Osteochondral(OC)repair is an extremely challenging topic due to the complex biphasic structure and poor intrinsic regenerative capability of natural osteochondral *** contrast to the current surgical approaches which...
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Osteochondral(OC)repair is an extremely challenging topic due to the complex biphasic structure and poor intrinsic regenerative capability of natural osteochondral *** contrast to the current surgical approaches which yield only short-term relief of symptoms,tissue engineering strategy has been shown more promising outcomes in treating OC defects since its emergence in the *** particular,the use of multizonal scaffolds(MZSs)that mimic the gradient transitions,from cartilage surface to the subchondral bone with either continuous or discontinuous compositions,structures,and properties of natural OC tissue,has been gaining momentum in recent *** the latest developments in the field,this review offers a comprehensive summary of recent advances,current hurdles,and future perspectives of OC repair,particularly the use of MZSs including bilayered,trilayered,multilayered,and gradient scaffolds,by bringing together onerous demands of architecture designs,material selections,manufacturing techniques as well as the choices of growth factors and cells,each of which possesses its unique challenges and opportunities.
The demands of manufacturing equipment often led to operating the equipment most effectively to maximize productivity or *** need for maximized operating time for the equipment has made the maintenance aspect resort t...
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In this study, a method was proposed for correcting the object positioning error of light detection and ranging (LiDAR) due to the roll, pitch, and yaw data error of the inertial measurement unit sensor in the global ...
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Understanding the mechanical properties of bionanofilms is important in terms of identifying their *** primary focus of this study is to examine the effect of water vapor annealed silk fibroin on the indentation modul...
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Understanding the mechanical properties of bionanofilms is important in terms of identifying their *** primary focus of this study is to examine the effect of water vapor annealed silk fibroin on the indentation modulus and hardness of graphene oxide-silk fibroin(GO-SF)bionanofilms through nanoindentation experiments and finite element analysis(FEA).The GO-SF bionanofilms were fabricated using the layer-by-layer *** water vapor annealing process was employed to enhance the interfacial properties between the GO and SF layers,and the mechanical properties of the GO-SF bionanofilms were found to be affected by this *** employing water vapor annealing,the indentation modulus and hardness of the GO-SF bionanofilms can be ***,the FEA models of the GO-SF bionanofilms were developed to simulate the details of the mechanical behaviors of the GO-SF *** difference in the stress and strain distribution inside the GO-SF bionanofilms before and after annealing was *** addition,the load-displacement curves that were obtained by the developed FEA model conformed well with the results from the nanoindentation *** summary,this study presents the mechanism of improving the indentation modulus and hardness of the GO-SF bionanofilms through the water vapor annealing process,which is established with the FEA simulation models.
This paper presents a pose synchronization method for semi-autonomous dynamic robotic swarms with a passivityshort human operator. In the human-robot network, a human operator sends a command signal to and receives vi...
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Model-based control is a crucial component of robotic navigation. However, it often struggles with entrapment in local minima due to its inherent nature as a finite, myopic optimization procedure. Previous studies hav...
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Intelligent systems face an increasingly complex array of challenges in the rapidly evolving landscape of human-device interactions. To address these challenges, there arises a pressing need for the development of ref...
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The development of flexible and wearable devices is mainly required for tactile sensing;as such devices can adapt to complicated nonuniform surfaces,they can be applied to the human ***,it remains necessary to simulta...
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The development of flexible and wearable devices is mainly required for tactile sensing;as such devices can adapt to complicated nonuniform surfaces,they can be applied to the human ***,it remains necessary to simultaneously achieve small-scale,portable,and stable developments in such ***,this work aims at fabricating a novel,lightweight,ultra-flexible,and fiber-shaped coaxial structure with a diameter of 0.51 mm using polydimethylsiloxane/graphene/nylon material,based on piezoresistive and triboelectric *** piezoresistive-based robotic-hand-controlled sensor thus realized exhibits a response time of 120 ms and a fast recovery time of 55 ***,the piezoresistive-based sensors effectively feature whisker/joystick-guided behaviors and also sense the human finger *** to the triboelectric-based selfpowered nanogenerator behavior,the resulting sensor can convert mechanical motion into electrical energy,without adversely affecting human ***,this triboelectric-based human finger sensor can be operated under different bending modes at specific ***,this multifunctional sensor is cost-effective and suitable for various applications,including robotichand-controlled operations in medical surgery,whisker/joystick motions in lightweight drone technology,and navigation with highsensitivity components.
In recent times, there has been growing interest in electric motors, particularly induction motors (IMs), which do not require rare-earth materials. IMs efficiency is a critical parameter as it directly influences the...
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