Quadruped robots which have flexibility and load-bearing capacity,are regarded as the best mobile platform for remote operation in unstructured and restricted environments.In the process of remote operation of quadrup...Quadruped robots which have flexibility and load-bearing capacity,are regarded as the best mobile platform for remote operation in unstructured and restricted environments.In the process of remote operation of quadruped robots,their status is inevitably influenced by complex environments.To monitor the robot's real-time operation status and make necessary adjustments,this paper focuses on the single-leg of a quadruped robot,proposes a single-leg virtual-real interaction system based on Digital Twin,and studies its virtual-real interaction characteristics.The virtual-reality interaction system contains single-leg physical entity,single-leg virtual model,control system,data service system and communication system,enabling interactive applications for single-leg visual state monitoring and real-time control optimization.This paper creates a high-fidelity model based on the physical entity;provides a system performance analysis method based on the system framework;analyzes virtual-real interaction delay based on communication scheme;conducts stand and jump test based on the single-leg mathematical model and analyzes the interaction characteristics under position/force control.This system provides new insights for real-time monitoring and control optimization of quadruped robots.展开更多
Background Virtual-reality(VR)fusion techniques have become increasingly popular in recent years,and several previous studies have applied them to laboratory education.However,without a basis for evaluating the effect...Background Virtual-reality(VR)fusion techniques have become increasingly popular in recent years,and several previous studies have applied them to laboratory education.However,without a basis for evaluating the effects of virtual-real fusion on VR in education,many developers have chosen to abandon this expensive and complex set of techniques.Methods In this study,we experimentally investigate the effects of virtual-real fusion on immersion,presence,and learning performance.Each participant was randomly assigned to one of three conditions:a PC environment(PCE)operated by mouse;a VR environment(VRE)operated by controllers;or a VR environment running virtual-real fusion(VR VRFE),operated by real hands.Results The analysis of variance(ANOVA)and t-test results for presence and self-efficacy show significant differences between the PCE*VR-VRFE condition pair.Furthermore,the results show significant differences in the intrinsic value of learning performance for pairs PCE*VR VRFE and VRE*VR-VRFE,and a marginally significant difference was found for the immersion group.Conclusions The results suggest that virtual-real fusion can offer improved immersion,presence,and self efficacy compared to traditional PC environments,as well as a better intrinsic value of learning performance compared to both PC and VR environments.The results also suggest that virtual-real fusion offers a lower sense of presence compared to traditional VR environments.展开更多
This is an attempt to explain mRNA-dependent non-stationary semantic values of codons (triplets) and nucleotides (letters) in codon composition during protein biosynthesis. This explanation is realized by comparing th...This is an attempt to explain mRNA-dependent non-stationary semantic values of codons (triplets) and nucleotides (letters) in codon composition during protein biosynthesis. This explanation is realized by comparing the different protein codes of various biosystem taxa, and, comparing mitochondrial code with the standard code. An initial mRNA transcriptional virtuality (Virtual-Reality) is transformed into material reality at the level of translation of virtual triplets into real (material) amino acids or into a real stop command of protein biosynthesis. The transformation of virtuality into reality occurs de facto when the linguistic sign1 functions of the codon syhoms are realized in the 3’ nucleotide (wobbling nucleotide according to F. Crick) in the process of protein biosynthesis. This corresponds to the theoretical works of the authors of this article. Despite the illusory appearance of semantic arbitrariness during the operation of ribosomes in the mode of codon semantic non-stationarity, this phenomenon probably provides biosystems with an unusually high level of adaptability to changes in the external environment as well as to internal (mental) dynamics of neuron’s genome in the cerebral cortex. The genome’s non-stationarity properties at the nucleotide, codon, gene and mental levels have fractal structure and corresponding dimensions. The highest form of such fractality (with maximum dimension) is probably realized in the genomic continuum of neurons in the human cerebral cortex through this semantic Virtual-to-Real (VR) codon transcoding with the biosynthesis of short-living semantic proteins, as the equivalents of material thinking-consciousness. In fact, this is the language of the brain’s genome, that is, our own language. In this case, the same thing happens in natural, primarily mental (non-verbal) languages. Their materialization is recorded in vocables (sounding words) and in writing. Such writing is the amino acid sequence in the semantic proteins of the human cerebral cortex. Rapidly decaying, such proteins can leave a long-lasting “so-called” Schrödinger wave holographic memory in the cerebral cortex. The presented below study is purely theoretical and based on a logical approach. The topic of the study is very complex and is subject to further development.展开更多
In view of the phased development in college education,military training,and new equipment combat training,this paper proposes the virtual-real fusion training model of“five-in-one and step-by-step.”The five trainin...In view of the phased development in college education,military training,and new equipment combat training,this paper proposes the virtual-real fusion training model of“five-in-one and step-by-step.”The five training modes,namely virtual panel training,immersive virtual training,physical(semi-physical)simulation training,training with equipped training equipment,and installation drill,are organically combined in the practical training of new equipment,which improves students' innovation consciousness and serviceability.展开更多
Considering the information interaction in the virtual-real network,this paper introduces a novel three-layer model that explores the integrated influence between virtual and real networks.Existing models often fail t...Considering the information interaction in the virtual-real network,this paper introduces a novel three-layer model that explores the integrated influence between virtual and real networks.Existing models often fail to capture the dynamic feedback between these networks and do not effectively simulate integrated decision-making processes.Focusing on the Facility Service Balance Problem,we aim to optimize resource allocation and information diffusion in response to real-world events like natural disasters or large-scale activities.Based on the Linear Threshold model,the Feedback Linear Threshold model,which incorporates feedback mechanisms between virtual and real networks and integrates both original and feedback information in the activation function of nodes,has been proposed to better simulate the information feedback and integrated decision-making process.Then,combined with location-based interpersonal and online social networks,a comprehensive framework that models decision-making processes without direct influence between decision-makers has been provided,focusing on the decision-making of individuals influenced by cumulative information,ultimately maximizing the facility service efficiency.Finally,conduct experiments have been conducted,using two types of data to test the general effectiveness of the feedback mechanism.展开更多
From virtual technology,the Internet to the meta-universe,around the creation of virtual and real isomorphism and immersive experience venues,an innovative integration model and innovative design concept integrating t...From virtual technology,the Internet to the meta-universe,around the creation of virtual and real isomorphism and immersive experience venues,an innovative integration model and innovative design concept integrating the three major fields of"science and technology+art+culture"have been opened,and the method of today's design industry management model has also been shaped.The author,ground on design originality and experience,intends to source feasible exhibition design tactics from the"presence"design and implementation project that integrates immersive display and performances.From this,efforts are invested in sorting specific innovative design patterns referring to ongoing cases of Metaverse,thereby charting course for prospective design projects.展开更多
文摘Quadruped robots which have flexibility and load-bearing capacity,are regarded as the best mobile platform for remote operation in unstructured and restricted environments.In the process of remote operation of quadruped robots,their status is inevitably influenced by complex environments.To monitor the robot's real-time operation status and make necessary adjustments,this paper focuses on the single-leg of a quadruped robot,proposes a single-leg virtual-real interaction system based on Digital Twin,and studies its virtual-real interaction characteristics.The virtual-reality interaction system contains single-leg physical entity,single-leg virtual model,control system,data service system and communication system,enabling interactive applications for single-leg visual state monitoring and real-time control optimization.This paper creates a high-fidelity model based on the physical entity;provides a system performance analysis method based on the system framework;analyzes virtual-real interaction delay based on communication scheme;conducts stand and jump test based on the single-leg mathematical model and analyzes the interaction characteristics under position/force control.This system provides new insights for real-time monitoring and control optimization of quadruped robots.
基金the National Key Research and Development Program of China(2018YFB1004902)the National Natural Science Foundation of China(61772329,61373085)。
文摘Background Virtual-reality(VR)fusion techniques have become increasingly popular in recent years,and several previous studies have applied them to laboratory education.However,without a basis for evaluating the effects of virtual-real fusion on VR in education,many developers have chosen to abandon this expensive and complex set of techniques.Methods In this study,we experimentally investigate the effects of virtual-real fusion on immersion,presence,and learning performance.Each participant was randomly assigned to one of three conditions:a PC environment(PCE)operated by mouse;a VR environment(VRE)operated by controllers;or a VR environment running virtual-real fusion(VR VRFE),operated by real hands.Results The analysis of variance(ANOVA)and t-test results for presence and self-efficacy show significant differences between the PCE*VR-VRFE condition pair.Furthermore,the results show significant differences in the intrinsic value of learning performance for pairs PCE*VR VRFE and VRE*VR-VRFE,and a marginally significant difference was found for the immersion group.Conclusions The results suggest that virtual-real fusion can offer improved immersion,presence,and self efficacy compared to traditional PC environments,as well as a better intrinsic value of learning performance compared to both PC and VR environments.The results also suggest that virtual-real fusion offers a lower sense of presence compared to traditional VR environments.
文摘This is an attempt to explain mRNA-dependent non-stationary semantic values of codons (triplets) and nucleotides (letters) in codon composition during protein biosynthesis. This explanation is realized by comparing the different protein codes of various biosystem taxa, and, comparing mitochondrial code with the standard code. An initial mRNA transcriptional virtuality (Virtual-Reality) is transformed into material reality at the level of translation of virtual triplets into real (material) amino acids or into a real stop command of protein biosynthesis. The transformation of virtuality into reality occurs de facto when the linguistic sign1 functions of the codon syhoms are realized in the 3’ nucleotide (wobbling nucleotide according to F. Crick) in the process of protein biosynthesis. This corresponds to the theoretical works of the authors of this article. Despite the illusory appearance of semantic arbitrariness during the operation of ribosomes in the mode of codon semantic non-stationarity, this phenomenon probably provides biosystems with an unusually high level of adaptability to changes in the external environment as well as to internal (mental) dynamics of neuron’s genome in the cerebral cortex. The genome’s non-stationarity properties at the nucleotide, codon, gene and mental levels have fractal structure and corresponding dimensions. The highest form of such fractality (with maximum dimension) is probably realized in the genomic continuum of neurons in the human cerebral cortex through this semantic Virtual-to-Real (VR) codon transcoding with the biosynthesis of short-living semantic proteins, as the equivalents of material thinking-consciousness. In fact, this is the language of the brain’s genome, that is, our own language. In this case, the same thing happens in natural, primarily mental (non-verbal) languages. Their materialization is recorded in vocables (sounding words) and in writing. Such writing is the amino acid sequence in the semantic proteins of the human cerebral cortex. Rapidly decaying, such proteins can leave a long-lasting “so-called” Schrödinger wave holographic memory in the cerebral cortex. The presented below study is purely theoretical and based on a logical approach. The topic of the study is very complex and is subject to further development.
基金The 2019 Ministry of Education Industry-University Cooperation Collaborative Education Project"Research on the Construction of Economics and Management Professional Data Analysis Laboratory"(Grant Number:201902077020)。
文摘In view of the phased development in college education,military training,and new equipment combat training,this paper proposes the virtual-real fusion training model of“five-in-one and step-by-step.”The five training modes,namely virtual panel training,immersive virtual training,physical(semi-physical)simulation training,training with equipped training equipment,and installation drill,are organically combined in the practical training of new equipment,which improves students' innovation consciousness and serviceability.
基金supported by the National Social Science Fund of China[grant numbers 24&ZD163].
文摘Considering the information interaction in the virtual-real network,this paper introduces a novel three-layer model that explores the integrated influence between virtual and real networks.Existing models often fail to capture the dynamic feedback between these networks and do not effectively simulate integrated decision-making processes.Focusing on the Facility Service Balance Problem,we aim to optimize resource allocation and information diffusion in response to real-world events like natural disasters or large-scale activities.Based on the Linear Threshold model,the Feedback Linear Threshold model,which incorporates feedback mechanisms between virtual and real networks and integrates both original and feedback information in the activation function of nodes,has been proposed to better simulate the information feedback and integrated decision-making process.Then,combined with location-based interpersonal and online social networks,a comprehensive framework that models decision-making processes without direct influence between decision-makers has been provided,focusing on the decision-making of individuals influenced by cumulative information,ultimately maximizing the facility service efficiency.Finally,conduct experiments have been conducted,using two types of data to test the general effectiveness of the feedback mechanism.
文摘From virtual technology,the Internet to the meta-universe,around the creation of virtual and real isomorphism and immersive experience venues,an innovative integration model and innovative design concept integrating the three major fields of"science and technology+art+culture"have been opened,and the method of today's design industry management model has also been shaped.The author,ground on design originality and experience,intends to source feasible exhibition design tactics from the"presence"design and implementation project that integrates immersive display and performances.From this,efforts are invested in sorting specific innovative design patterns referring to ongoing cases of Metaverse,thereby charting course for prospective design projects.
