A thin shell model refers to a surface or structure,where the object’s thickness is considered *** the context of 3D printing,thin shell models are characterized by having lightweight,hollow structures,and reduced ma...
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A thin shell model refers to a surface or structure,where the object’s thickness is considered *** the context of 3D printing,thin shell models are characterized by having lightweight,hollow structures,and reduced material *** versatility and visual appeal make them popular in various fields,such as cloth simulation,character skinning,and for thin-walled structures like leaves,paper,or metal ***,optimization of thin shell models without external support remains a challenge due to their minimal interior operational *** the same reasons,hollowing methods are also unsuitable for this *** fact,thin shell modulation methods are required to preserve the visual appearance of a two-sided surface which further constrain the problem *** this paper,we introduce a new visual disparity metric tailored for shell models,integrating local details and global shape attributes in terms of visual *** method modulates thin shell models using global deformations and local thickening while accounting for visual saliency,stability,and structural ***,thin shell models such as bas-reliefs,hollow shapes,and cloth can be stabilized to stand in arbitrary orientations,making them ideal for 3D printing.
In this paper, we study the performance of wireless-powered cluster-based multi-hop cognitive relay networks (MCRNs), where secondary nodes harvest energy from multiple dedicated power beacons (PBs) and share the spec...
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To enhance the corrosion resistance and electrical conductivity, the surface of 316L stainless steel was modified by the ion implantation of Mo. By investigating various accelerating voltages and implantation doses, i...
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To enhance the corrosion resistance and electrical conductivity, the surface of 316L stainless steel was modified by the ion implantation of Mo. By investigating various accelerating voltages and implantation doses, it was found that the corrosion resistance of stainless steel was enhanced by 50%-80% and the surface conductivity by 15%-28% at most. The minimum stabilized current density is 0.72 μA/cm^(2). This is due to the formation of a Cr and Mo riched modified layer on the surface of the stainless steel. Mo oxides synergize with Cr oxides in the form of a solid solution to enhance the corrosion resistance of passivation films on the stainless steel surface. The optimum parameters were Cr in the proportion of 6%-8% and Mo in the proportion of 4%-5%.
A redactable blockchain allows authorized individuals to remove or replace undesirable content,offering the ability to remove illegal or unwanted *** control is a mechanism that limits data visibility and ensures that...
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A redactable blockchain allows authorized individuals to remove or replace undesirable content,offering the ability to remove illegal or unwanted *** control is a mechanism that limits data visibility and ensures that only authorized users can decrypt and access encrypted information,playing a crucial role in addressing privacy concerns and securing the data stored on a *** and access control are both essential components when implementing a regulated consortium blockchain in real-world situations to ensure the secure sharing of data while removing undesirable *** propose a decentralized consortium blockchain system prototype that supports redactability and access *** the development of a prototype blockchain system,we investigate the feasibility of combining these approaches and demonstrate that it is possible to implement a redactable blockchain with access control in a consortium blockchain setting.
High-resolution (HR) remote sensing image semantic segmentation plays an important role in Earth's surface. Despite remote sensing image semantic segmentation methods have developed rapidly. However, the land obje...
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To investigate the differences in combustion and energy release characteristics of metastable intermolecular composite materials composed of aluminum alloys and polyvinylidene fluoride (PVDF) with different compositio...
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The privacy concern in smart contract applications continues to grow,leading to the proposal of various schemes aimed at developing comprehensive and universally applicable privacy-preserving smart contract(PPSC)***,t...
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The privacy concern in smart contract applications continues to grow,leading to the proposal of various schemes aimed at developing comprehensive and universally applicable privacy-preserving smart contract(PPSC)***,the existing research in this area is fragmented and lacks a comprehensive system *** paper aims to bridge the existing research gap on PPSC schemes by systematizing previous studies in this *** primary focus is on two categories:PPSC schemes based on cryptographic tools like zero-knowledge proofs,as well as schemes based on trusted execution *** doing so,we aim to provide a condensed summary of the different approaches taken in constructing PPSC ***,we also offer a comparative analysis of these approaches,highlighting the similarities and differences between ***,we shed light on the challenges that developers face when designing and implementing PPSC ***,we delve into potential future directions for improving and advancing these schemes,discussing possible avenues for further research and development.
Discrete feedback control was designed to stabilize an unstable hybrid neutral stochastic differential delay system(HNSDDS) under a highly nonlinear constraint in the H_∞ and exponential ***,the existing work just ad...
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Discrete feedback control was designed to stabilize an unstable hybrid neutral stochastic differential delay system(HNSDDS) under a highly nonlinear constraint in the H_∞ and exponential ***,the existing work just adapted to autonomous cases,and the obtained results were mainly on exponential *** comparison with autonomous cases,non-autonomous systems are of great interest and represent an important ***,discrete feedback control has here been adjusted with a time factor to stabilize an unstable non-autonomous HNSDDS,in which new Lyapunov-Krasovskii functionals and some novel technologies are *** should be noted,in particular,that the stabilization can be achieved not only in the routine H_∞ and exponential forms,but also the polynomial form and even a general form.
In this study,Al-xSi-0.3Mn-0.3Mg-0.14Fe alloys(x=6.5,7.5,8.5,wt.%)were prepared by super-slow-speed die-casting,and the effects of Si content on the microstructure,mechanical,and thermal/electrical conductivities in a...
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In this study,Al-xSi-0.3Mn-0.3Mg-0.14Fe alloys(x=6.5,7.5,8.5,wt.%)were prepared by super-slow-speed die-casting,and the effects of Si content on the microstructure,mechanical,and thermal/electrical conductivities in as-cast,T5,and T6 states(DIN EN 1706:2020)were *** is found that the increase of Si content in the alloy enhances the formation of eutectic segregation band in the casting surface *** the Si content range of 6.5%-8.5%,as a comprehensive evaluation criterion of mechanical properties,the quality index(QI)of 376.1 MPa can be obtained in the as-cast state of the alloy with about 7.5%Si content,373.4 MPa in T5 state of the alloy with 6.5%Si content,and 432.2 MPa in T6 state of the alloy containing 8.5%*** heat treatment state significantly affects the thermal conductivity and electrical conductivity of the *** eutectic silicon in the alloy is segemented and further spheroidizaed during the solution process,and the solute atoms of Mg and Si are more adequately precipitated during the aging *** of these greatly reduce the probability of electron ***,T6 treatment significantly improves the electrical and thermal *** the increase of Si content,both thermal conductivity and electrical conductivity decrease slightly,demonstrating a strong correlation with the Si content in the alloy.
The increase in number of people using the Internet leads to increased cyberattack *** Persistent Threats,or APTs,are among the most dangerous targeted *** attacks utilize various advanced tools and techniques for att...
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The increase in number of people using the Internet leads to increased cyberattack *** Persistent Threats,or APTs,are among the most dangerous targeted *** attacks utilize various advanced tools and techniques for attacking targets with specific *** countries with advanced technologies,like the US,Russia,the UK,and India,are susceptible to this targeted *** is a sophisticated attack that involves multiple stages and specific ***,TTP(Tools,Techniques,and Procedures)involved in the APT attack are commonly new and developed by an attacker to evade the security ***,APTs are generally implemented in multiple *** one of the stages is detected,we may apply a defense mechanism for subsequent stages,leading to the entire APT attack *** detection at the early stage of APT and the prediction of the next step in the APT kill chain are ongoing *** survey paper will provide knowledge about APT attacks and their essential *** follows the case study of known APT attacks,which will give clear information about the APT attack process—in later sections,highlighting the various detection methods defined by different researchers along with the limitations of the *** used in this article comes from the various annual reports published by security experts and blogs and information released by the enterprise networks targeted by the attack.
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