Multiarmed bandit(MAB) models are widely used for sequential decision-making in uncertain environments, such as resource allocation in computer communication systems.A critical challenge in interactive multiagent syst...
Multiarmed bandit(MAB) models are widely used for sequential decision-making in uncertain environments, such as resource allocation in computer communication systems.A critical challenge in interactive multiagent systems with bandit feedback is to explore and understand the equilibrium state to ensure stable and tractable system performance.
Despite the promising potential of NaTi2（PO4）3as desalination battery electrode,its mediocre seawater desalination capacity and durability fail to meet the requirements of practical ***,the substitution of Ti by Fe ...
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Despite the promising potential of NaTi2（PO4）3as desalination battery electrode,its mediocre seawater desalination capacity and durability fail to meet the requirements of practical ***,the substitution of Ti by Fe in NaTi2（PO4）3(NT2-xFxP),which possesses a stronger electronegativity relative to Ti,can regulate the electronic structure,thus facilitating charge transfer and ion diffusion during the desalination *** kinetic and thermodynamic facilitation of NT2-xFxP is clarified by the electrochemical analyses and DFT ***,the additional redox center and solid-solution reaction mechanism induced by Fe-dopant further contribute to a superior desalination performance of NT2-xFxP in different seawater *** from the multifunctional effect of Fe-dopant,the optimal NT1.7F0.3P delivers a large salt removal capacity(173.6 mg g-1) with an ultrahigh salt removal rate(8.48 mg g-1min-1),and maintains 96.6%of desalination capacity after 500 cycles in natural ***,the assembled NT1.7F0.3P||NaFeHCF rocking-chair desalination battery（RCDB） demonstrates a higher desalination performance than that of reported RCDB systems,and can desalinate natural seawater to freshwater standards under continuous desalination mode for the first time in RCDB *** work provides a facile but effective strategy to modulate the electronic structure of NaTi2（PO4）3for RCDB,and exploits a new perspective for developing scalable RCDB devices for continuous desalinating real seawater to freshwater.
The anisotropy and tension-compression asymmetry of rare-earth magnesium（Mg-RE） alloys have attracted significant *** this study,the room-temperature tensile anisotropy and tensioncompression asymmetry of the extrud...
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The anisotropy and tension-compression asymmetry of rare-earth magnesium（Mg-RE） alloys have attracted significant *** this study,the room-temperature tensile anisotropy and tensioncompression asymmetry of the extruded Mg-8.5Gd-4.5Y-0.8Zn-0.4Zr alloy were investigated utilizing techniques such as optical microscopy（OM）,electron backscatter diffraction（EBSD）,and viscoplastic self-consistent（VPSC） *** the tensile samples,the TO sample（with axis parallel to extrusion direction） exhibits the greatest tensile yield strength（TYS） of 270 MPa and ultimate tensile strength（UTS） of 336 MPa,the T45 sample（with axis inclined at a 45° angle to extrusion direction） and T90 sample（with axis perpendicular to extrusion direction） exhibit lower TYS and *** CO sample shows a slightly greater compressive yield strength（CYS） of 290 *** ratio of TYS/CYS is approximately *** study significantly adjusts the VPSC hardening parameters through the Schmid factor of deformation mechanisms in Mg-RE alloy,particularly increasing the τ0（critical resolved shear stress,CRSS） and τ1values for basalslip and {10-12} *** ratios of CRSS for other deformation mechanisms to basalslip are approximately as follows:CRSSTwin/CRSSBas=2,CRSSpri/CRSSBas≈2.7and CRSSPyr/CRSSBas≈3.3,while these ratios in traditional alloys are generally *** stress-strain curves and pole figures obtained from the modified VPSC model demonstrate excellent agreement with experimental *** to the VPSC simulation results,the primary factor contributing to tensile anisotropy is the disparity in the activation levels of slip *** inclusion of rare-earth elements mitigates the tension-compression asymmetry by reducing the difference of CRSS between different deformation mechanisms.
Electronic 3D printing possesses a remarkable molding ability and convenience in integrated circuits,flex-ible wearables,and individual automobile ***,traditional 3D printing technology still struggles to meet the dem...
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Electronic 3D printing possesses a remarkable molding ability and convenience in integrated circuits,flex-ible wearables,and individual automobile ***,traditional 3D printing technology still struggles to meet the demands of high precision and high efficiency in the process of fabricating a curved surface circuit,particularly achieving precise silver circuit molding on irregular ***,a high-precision and muti-scaled conformal manufacturing method for silver circuits is presented through the digital light processing(DLP)of ultraviolet-curable silver paste(UV-SP)with adjustable photocuring prop-erties,enabling the successful preparation of micro-scaled conductive structure on the sharply skewed hook *** minimum modeling depth and width of the cured silver paste can be well controlled to 10 and 88 pm,*** with traditional printing technology,the printing efficiency of com-plex patterns has increased by over 70％.The printed silver circuit demonstrates an exceptionally high electrical conductivity,reaching as high as 1.16 × 107 S/***,the UV-SP exhibits significant manufacturing efficiency and superior molding resolution compared to conventional direct ink writing and inkjet printing techniques,thereby contributing to the attainment of high precision and efficiency of conformal and micro-molding manufacturing in sensors,communication antennas,and other electronic devices based on curved substrates.
1 Introduction Recently,multiple synthetic and real-world datasets have been built to facilitate the training of deep single-image reflection removal(SIRR)***,diverse testing sets are also provided with different type...
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1 Introduction Recently,multiple synthetic and real-world datasets have been built to facilitate the training of deep single-image reflection removal(SIRR)***,diverse testing sets are also provided with different types of reflections and ***,the non-negligible domain gaps between training and testing sets make it difficult to learn deep models generalizing well to testing *** diversity of reflections and scenes further makes it a mission impossible to learn a single model being effective for all testing sets and real-world *** this paper,we tackle these issues by learning SIRR models from a domain generalization perspective.
High thermal conductivity and high strength Mg-1.5Mn-2.5Ce alloy with a tensile yield strength of 387.0 MPa,ultimate tensile strength of 395.8 MPa,and thermal conductivity of 142.1 W/(m·K)was successfully fabrica...
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High thermal conductivity and high strength Mg-1.5Mn-2.5Ce alloy with a tensile yield strength of 387.0 MPa,ultimate tensile strength of 395.8 MPa,and thermal conductivity of 142.1 W/(m·K)was successfully fabricated via hot *** effects of La and Ce additions on the microstructure,thermal conductivity,and mechanical properties of the Mg-1.5Mn alloy were *** results indicated that both the as-extruded Mg-1.5Mn-2.5La and Mg-1.5Mn-2.5Ce alloys exhibited a bimodal grain structure,with dynamically precipitated nano-scaleα-Mn *** comparison with La,the addition of Ce enhanced the dynamic precipitation more effectively during hot extrusion,while its influence on promoting the dynamic recrystallization was relatively *** high tensile strength obtained in the as-extruded Mg-1.5Mn-2.5RE alloys can be attributed to the combined influence of the bimodal grain structure(with fine dynamic recrystallized(DRXed)grain size and high proportion of un-dynamic recrystallized(unDRXed)grains),dense nano-scale precipitates,and broken Mg12RE phases,while the remarkable thermal conductivity was due to the precipitation of Mn-rich phases from the Mg matrix.
Two new low-alloyed Mg-2RE-0.8Mn-0.6Ca-0.5Zn(wt%,RE=Sm or Y)alloys are developed,which can be produced on an in-dustrial scale via relatively high-speed *** two alloys are not only comparable to commercial AZ31 alloy ...
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Two new low-alloyed Mg-2RE-0.8Mn-0.6Ca-0.5Zn(wt%,RE=Sm or Y)alloys are developed,which can be produced on an in-dustrial scale via relatively high-speed *** two alloys are not only comparable to commercial AZ31 alloy in extrudability,but also have superior mechanical properties,especially in terms of yield strength(YS).The excellent extrudability is related to less coarse second-phase particles and high initial melting point of the two as-cast *** high strength-ductility mainly comes from the formation of fine grains,nano-spaced submicron/nano precipitates,and weak ***,it is worth noting that the YS of the two alloys can maintain above 160 MPa at elevated temperature of 250°C,significantly higher than that of AZ31 alloy(YS:45 MPa).The Zn/Ca solute segregation at grain boundaries,the improved heat resistance of matrix due to addition of RE,and the high melting points of strengthening particles(Mn,MgZn_(2),and Mg-Zn-RE/Mg-Zn-RE-Ca)are mainly responsible for the excellent high-temperature strength.
Sentiment analysis plays an important role in distilling and clarifying content from movie reviews,aiding the audience in understanding universal views towards the ***,the abundance of reviews and the risk of encounte...
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Sentiment analysis plays an important role in distilling and clarifying content from movie reviews,aiding the audience in understanding universal views towards the ***,the abundance of reviews and the risk of encountering spoilers pose challenges for efcient sentiment analysis,particularly in Arabic *** study proposed a Stochastic Gradient Descent(SGD)machine learning(ML)model tailored for sentiment analysis in Arabic and English movie *** allows for fexible model complexity adjustments,which can adapt well to the Involvement of Arabic language *** adaptability ensures that the model can capture the nuances and specifc local patterns of Arabic text,leading to better *** distinct language datasets were utilized,and extensive pre-processing steps were employed to optimize the datasets for *** proposed SGD model,designed to accommodate the nuances of each language,aims to surpass existing models in terms of accuracy and *** SGD model achieves an accuracy of 84.89 on the Arabic dataset and 87.44 on the English dataset,making it the top-performing model in terms of accuracy on both *** indicates that the SGD model consistently demonstrates high accuracy levels across Arabic and English *** study helps deepen the understanding of sentiments across various linguistic *** many studies that focus solely on movie reviews,the Arabic dataset utilized here includes hotel reviews,ofering a broader perspective.
Natural frequency and dynamic stiffness under transient loading are two key performances for structural design related to automotive,aviation and construction *** article aims to tackle the multi-objective topological...
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Natural frequency and dynamic stiffness under transient loading are two key performances for structural design related to automotive,aviation and construction *** article aims to tackle the multi-objective topological optimization problem considering dynamic stiffness and natural frequency using modified version of bi-directional evolutionary structural optimization(BESO).The conventional BESO is provided with constant evolutionary volume ratio(EVR),whereas low EVR greatly retards the optimization process and high EVR improperly removes the efficient *** address the issue,the modified BESO with variable EVR is *** compromise the natural frequency and the dynamic stiffness,a weighting scheme of sensitivity numbers is employed to form the Pareto solution *** numerical examples demonstrate that the optimal solutions obtained from the modified BESO method have good agreement with those from the classic BESO *** importantly,the dynamic removal strategy with the variable EVR sharply springs up the optimization ***,it is concluded that the modified BESO method with variable EVR can solve structural design problems using multi-objective optimization.
This study investigates the interactions between cavitation bubbles and the interfaces of two immiscible liquids,with practical implications and potential applications in the fields such as ultrasonic emulsification a...
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This study investigates the interactions between cavitation bubbles and the interfaces of two immiscible liquids,with practical implications and potential applications in the fields such as ultrasonic emulsification and wastewater *** explore the influence of liquid viscosity on the interaction between the cavitation bubble and flat liquid-liquid interface,visualization experiments were performed on the laser-induced cavitation bubbles near two liquid-liquid interfaces composed of deionized water and two silicone oils with different viscosities(50 mPa·s,500 mPa·s)by using high-speed *** different positions were employed for the generation of cavitation bubbles,i.e.,at the interface,in the water,and in the silicone *** evolutions of cavitation bubbles and the corresponding interface deformations at different dimensionless standoff distancesγbetween the cavitation bubble and the interface were *** results show that the difference in the viscosity of silicone oil significantly affects the physical phenomena occurred during the interaction between the millimeter-scale cavitation bubble and the *** this basis,the qualitative and quantitative analyses for the cavitation bubble jet dynamics indicate that the critical value ofγfor jet penetration through the interface between the water and the higher-viscosity silicone oil(interface 2,γ=0.33)is lower than that for the interface between the water and the lower-viscosity silicone oil(interface 1,γ=0.69).Besides,the jet generated by the cavitation bubble near interface 1 possesses a higher maximum *** indicate that increased viscosity inhibits the development of the *** cavitation bubbles that initiate in the water near Interface 1 consistently migrate away from the interface and do not split,while those near interface 2 would migrate towards the interface at intermediateγand would split atγ<*** addition,the jet behaviours of cavitation bubbles near interface 2 at
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