It is difficult to rescue people from outside, and emergency evacuation is still a main measure to decrease casualties in high-rise building fires. To improve evacuation efficiency, a valid and easily manipulated grou...It is difficult to rescue people from outside, and emergency evacuation is still a main measure to decrease casualties in high-rise building fires. To improve evacuation efficiency, a valid and easily manipulated grouping evacuation strategy is proposed. Occupants escape in groups according to the shortest evacuation route is determined by graph theory. In order to evaluate and find the optimal grouping, computational experiments are performed to design and simulate the evacuation processes. A case study shown the application in detail and quantitative research conclusions is obtained. The thoughts and approaches of this study can be used to guide actual high-rise building evacuation processes in future.展开更多
We report on the theoretical and experimental investigations of the transition of a typical quantum system with mixed regular-integrable classical dynamics to one with violated time-reversal(T)invariance.The measureme...We report on the theoretical and experimental investigations of the transition of a typical quantum system with mixed regular-integrable classical dynamics to one with violated time-reversal(T)invariance.The measurements are performed with a flat superconducting microwave resonator with circular shape in which chaoticity is induced by using either long antennas or inserting two circular disks into the cavity,and by magnetizing a ferrite disk placed at its center,which leads to violation of T invariance.We propose an extension of the Rosenzweig-Porter(RP)model,which interpolates between mixed regular-chaotic instead of integrable dynamics and fully chaotic dynamics with violated T-invariance,and derive a Wigner-surmise like analytical expression for the corresponding nearest-neighbor spacing distribution.We propose a procedure involving this result and those for the RP model to determine the size of T-invariance violation and chaoticity and validate it employing the experimental eigenfrequency spectra.展开更多
In this review,we discuss the electrochemical properties of Prussian blue(PB)for Na^(+)storage by combining structural engineering and electrolyte modifications.We integrated experimental data and density functional t...In this review,we discuss the electrochemical properties of Prussian blue(PB)for Na^(+)storage by combining structural engineering and electrolyte modifications.We integrated experimental data and density functional theory(DFT)in sodium-ion battery(SIB)research to refine the atomic arrangements and crystal lattices and introduce substitutions and dopants.These changes affect the lattice stability,intercalation,electronic and ionic conductivities,and electrochemical performance.We unraveled the intricate structure-electrochemical behavior relationship by combining experimental data with computational models,including first-principles calculations.This holistic approach identified techniques for optimizing PB and Prussian blue analog(PBA)structu ral properties for SIBs.We also discuss the tuning of electrolytes by systematically adjusting their composition,concentration,and additives using a combination of molecular dynamics(MD)simulations and DFT computations.Our review offers a comprehensive assessment of strategies for enhancing the electrochemical properties of PB and PBAs through structural engineering and electrolyte modifications,combining experimental insights with advanced computational simulations,and paving the way for next-generation energy storage systems.展开更多
Establishing a sense of ritual within tourism consumption scenarios offers tourists the opportunity for interactive engagement.Drawing upon the value co-creation theory,this study constructed an influence mechanism mo...Establishing a sense of ritual within tourism consumption scenarios offers tourists the opportunity for interactive engagement.Drawing upon the value co-creation theory,this study constructed an influence mechanism model to examine tourists'active engagement in the process of co-creating tourism experience values.It employed Partial Least Squares Structural Equation Modeling(PLS-SEM)to empirically test the proposed hypotheses.The findings demonstrate that the model constructed in the present study exhibits robust reliability,validity,and explanatory power.The perception of the sense of ritual in tourism exerts a significant positive influence on tourists’co-creation of tourism experience values,thereby significantly enhancing both the communitas and flow experienced by tourists during their travels.Moreover,such communitas and flow can mediate the influence of the sense of ritual in tourism on tourists’co-creation of tourism experience values.This study contributes to advancing the current research on tourists’co-creation of tourism experience values and the sense of ritual in tourism,thereby providing theoretical foundations for cultivating a sense of ritual within tourism consumption scenarios.展开更多
Experimental course is an important link of ideological and political education in colleges and universities under the new situation,and plays an important role in the construction of ideological and political theorie...Experimental course is an important link of ideological and political education in colleges and universities under the new situation,and plays an important role in the construction of ideological and political theories teaching in the course.Taking Pingdingshan University as an example,by introducing the real soil cases in Pingdingshan area,the ideological and political elements of the course are integrated into the teaching links of laboratory safety training,self-study before class,experimental teaching implementation,evaluation and improvement.By implementing the concept of"All-round Education"in experimental teaching,we are committed to realizing the comprehensive coverage of value shaping,knowledge inheritance and ability training,and explore and practice the reform of ideological and political theories teaching in the course of Soil Science Experiment.展开更多
he evolution and nucleation of microcracks in typical tectonics are investigated in the experiment of fracture of marble specimen. The change of state during nucleation of microcracks is observed. The controlling effe...he evolution and nucleation of microcracks in typical tectonics are investigated in the experiment of fracture of marble specimen. The change of state during nucleation of microcracks is observed. The controlling effect of tectonics on evolution of microcracks is analyzed by using thc damage mechanics theory. These characteristics can be analogized to kilometer meters as the first effect of earthquake precursors. These studies may be helpful to interpret-the foreshock or general foreshock in the moderate or short stage before strong earthquakes. The other physical precursors are second or third effect. The local density of microcracks increasing abruptly may be helpful to interpret the phenomenon that part precursor records appear catastrophic jump. The part out of nucleation where some microcracks heal and the density change reversibly may be helpful to interpret the phenomenon that some precursors records appear reverse change. The area difference of microcracks accumulation and evolution in different part of typital tectonics is studied. This difference may be helpful to interpret the characteristics (including the area) of earthquake preparation of diffcrent tectonics, and further to interpret the difference of the precursors beween plate edge and intraplate. These differences may be introduced by the scholars with different points of view as to discuss about the existence of precursors before earthquakes. However, when the precursor records are studied, one must notice the geology background in different areas.展开更多
Based on the blasting theory and stress wave theory, stemming mechanism and movement of stemmed material in rock blasting were analyzed and the calculation expression of stemming lengths was deduced. The blasting expe...Based on the blasting theory and stress wave theory, stemming mechanism and movement of stemmed material in rock blasting were analyzed and the calculation expression of stemming lengths was deduced. The blasting experiment with different stemming lengths was carried out and the results show that the theoretical stemming length, which is 0.73 ~ 0.8 time of burden, is in the range of the experiential length, which is O. 63 - O. 88 time of burden. The blasting results of field experiments with theoretical stemming length are satisfactory, which shows the theoretical derivation and analysis are correct and reliable. The results will supply rock blasting with the theoretical gist of parameters design.展开更多
Based on the similarity theory,a new experimentalmethod named Similar ExperimentalMethod for Durability of Concrete(SEMDC)was established.The existing experimentalmethods for durability of concrete were summarized,a...Based on the similarity theory,a new experimentalmethod named Similar ExperimentalMethod for Durability of Concrete(SEMDC)was established.The existing experimentalmethods for durability of concrete were summarized,and the merits and demerits of these experimentalmethods were analyzed.Major factors affecting the durability of concrete were found through literature review.These factors were analyzed and the similarity criteria were established according to the similarity theory,and then the SEMDC was established according to the rules of these criteria.The various influentialfactors of the experimentalmethod were analyzed and the merits and demerits of this new experimentalmethod were discussed.According to SEMDC,changing the geometry shrinkage ratio was the only way to accelerate the test in order to keep the experiment similar to the reality.There were few other parameters which need to be changed in SEMDC,making the test easy to be achieved.According to SEMDC,time shrinkage ratio was the square of geometric shrinkage ratio,so an appropriate increase of the geometric shrinkage ratio could accelerate the test.Finally,an example of experimentaldesign for durability of concrete was devised theoretically base on SEMDC theory.展开更多
Background: Dilated cardiomyopathy is a refractory myocardial disease with a poor prognosis. Mrs. G experienced cardiopulmonary arrest during hospitalization. She constantly struggles with uncertainty and experiences ...Background: Dilated cardiomyopathy is a refractory myocardial disease with a poor prognosis. Mrs. G experienced cardiopulmonary arrest during hospitalization. She constantly struggles with uncertainty and experiences immense mental suffering from her symptoms, treatments, anxiety, and prognosis. This condition requires appropriate nursing care. Purpose: This study, which is based on Margaret Newman’s theory, aims to clarify the experience of illness of Mrs. G who has dilated cardiomyopathy. Methods: This involved interpretive and dialectical praxis research. The researcher and Mrs. G formed a partnership through discussion. Hermeneutical analysis was performed on the discussion content. Results: The experience of illness of Mrs. G consisted of 6 phases: “Looking back on the shock of having an illness and receiving medical treatment”, “Looking back on one’s life until present”, “Confusion resulting from uncertainty”, “Self-insight”, “Recognizing one’s true feelings of wanting to live”, and “Commitment and decision to live”. Mrs. G could find a new self and expand her consciousness. Conclusion: Mrs. G found meaning in coping with her illness and discovered the value of living while accepting her own destiny. She connected to her own life and became more prepared to live with hope. Thus, partnership in nursing care according to Newman’s theory can benefit patients with distress from dilated cardiomyopathy. This nursing support can improve patient outlook.展开更多
Looped light in a recent sophisticated real three-slit experiment is interpreted as a strong justification of the old theoretical Peano-Hilbert spacetime model of Ord and El Naschie. This in turn entails the existence...Looped light in a recent sophisticated real three-slit experiment is interpreted as a strong justification of the old theoretical Peano-Hilbert spacetime model of Ord and El Naschie. This in turn entails the existence of extra fractal dimensions and consequently of real dark energy density in full agreement with previous analysis as well as accurate measurements and observations of COBE, WMAP, and the type 1a supernova.展开更多
When designing a wave power plant, reliable and fast simulation tools are required. Computational fluid dynamics (CFD) software provides high accuracy but with a very high computational cost, and in operational, mod...When designing a wave power plant, reliable and fast simulation tools are required. Computational fluid dynamics (CFD) software provides high accuracy but with a very high computational cost, and in operational, moderate sea states, linear potential flow theories may be sufficient to model the hydrodynamics. In this paper, a model is built in COMSOL Multiphysics to solve for the hydrodynamic parameters of a point-absorbing wave energy device. The results are compared with a linear model where the hydrodynamical parameters are computed using WAMIT, and to experimental results from the Lysekil research site. The agreement with experimental data is good for both numerical models.展开更多
This paper will present questions from three perspectives about Quantum Mechanics (QM): physics, epistemological, and metaphysical. The quantum phenomena do not fit with the parameters of classical physics, so a da...This paper will present questions from three perspectives about Quantum Mechanics (QM): physics, epistemological, and metaphysical. The quantum phenomena do not fit with the parameters of classical physics, so a daily intuition on macroscopic world is dispensable when it is the quantum object investigated. This physical domain induces a new thinking, which requires also new concepts to describe such object. The QM is disturbing and stimulates epistemological reflections, as the issues of access about what is known; and metaphysical theme are not to be left behind with regard to QM: What would the quantum object to? What is apprehended when this object is perceived, once considered the disturbing characteristics that constitute its physical description: interference and non-separability? What is its nature? This paper focuses briefly on the analysis of B. d'Espagnat in Veiled Reality, which would represent the physical perspective of QT; for epistemological questions, one will resort to the Kantian conception of knowledge; and with regard to the metaphysical perspective, we will rely on an article by Professor J. B. Arenhart. It is necessary to note that the question that pervades in this paper is about if the experience in QM is built. Thus, we will try to seek clarity on the philosophical issues through QT, regarding the problems about the possibility of knowledge of the quantum object and its nature, and whether experience in this case is built. But furthermore, the QM instigates us to think whether metaphysics proceeds on the investigation of nature when it comes to the QM. And such a question is more than to have as problem as the scope of the description of physical data, but rather whether it makes sense or whether metaphysical research is pertinent to the QM.展开更多
A new and falsifiable realist interpretation of quantum mechanics is examined in relation to the sum over histories concept, pilot wave theory and the many-worlds interpretation. This electric charge/transactional mod...A new and falsifiable realist interpretation of quantum mechanics is examined in relation to the sum over histories concept, pilot wave theory and the many-worlds interpretation. This electric charge/transactional model explains how the single electron double-slit experiment produces extremely localized endpoints from diffracted wavicles, why these endpoints are scattered around the entire surface of the absorber screen, and why these points of contact result in the characteristic fringe pattern as they accumulate. Advanced waves and substantive electric charge effects in the double-slit experiment are postulated, then this hypothesis is supported by a quantitative analysis of electron emission in comparison to lightning. The wider implications if advanced waves and electric charge distribution prove to be significant factors in the double-slit experiment are discussed, including possible parallels with meteorological and neurological phenomena.展开更多
Based on Joseph Schumpeter’s theory of“creative destruction,”we constructed a multi-sectoral endogenous growth model that integrates the agriculture,manufacturing,and service sectors.Employing numerical simulation,...Based on Joseph Schumpeter’s theory of“creative destruction,”we constructed a multi-sectoral endogenous growth model that integrates the agriculture,manufacturing,and service sectors.Employing numerical simulation,we investigated the dynamic influence of technological innovation on the industrial structural transformation in two key aspects:the level of innovation and the research and development(R&D)efficiency within industries.Our findings indicate that technological innovation plays a pivotal role in advancing industrial structural transformation.Enhancements in both the level of innovation and R&D efficiency within industries are instrumental in fostering industrial structural transformation.Specifically,the enhancements in the level of innovation or R&D efficiency within the agricultural sector hasten its transition toward the manufacturing sector,while such enhancement within the manufacturing sector expedites its transition toward the service sector.However,such enhancements within the service sector tend to decelerate the transition from manufacturing to service.In light of this,it is essential to harness technological innovation to enhance the level of innovation and R&D efficiency in industries to facilitate the transition of traditional industries into high-value-added and emerging ones.Meanwhile,tailored technological innovation strategies should be implemented to boost a balanced industrial structural transformation within industries.展开更多
Instead of relying on the erroneous principles of Special Relativity, this paper proposes a new theory based on the emission of photons by a source and their re-emission by a transparent medium. Through over 60 articl...Instead of relying on the erroneous principles of Special Relativity, this paper proposes a new theory based on the emission of photons by a source and their re-emission by a transparent medium. Through over 60 articles, we have demonstrated that Special Relativity is based on optical experiments and observations that have been incorrectly explained by the theory of a non-existent ether. Our findings show that all known experiments can be explained using classical concepts of space and time, thereby refuting the theory of relativity. This article also addresses the fallacy of the widely accepted etheric Doppler effects and its significant role in the history of science.展开更多
Inspired by Maurice Merleau-Ponty’s phenomenology of perception and the concept of“body-subject”,this study advances a new paradigm of“embodied”design thinking.This approach not only investigates how design can f...Inspired by Maurice Merleau-Ponty’s phenomenology of perception and the concept of“body-subject”,this study advances a new paradigm of“embodied”design thinking.This approach not only investigates how design can foster an organic connection between people and the world but also delves into the“embodiment of emotions”within design practices,thereby strengthening emotional resonance and empathy between design works and individuals.This transformation in design thinking holds significant importance for advancing and deepening research into design methodologies.The research aims to enhance the understanding of the intrinsic logic within design,aiding designers in creating works that resonate more profoundly with human daily productivity and life,and facilitating an emotional dialogue between the design and its users.Originating from a profound human-centered design philosophy and guided by Don Ihde’s theory of embodiment,the study begins with the functional relationships of bodily embodiment,employing phenomenological methods in design,enriched by in-depth case study analysis.Our research analysis has revealed three core logics of bodily embodiment in design:The logic of behavioral embodiment emphasizes innate and acquired human behavioral patterns;the logic of organ embodiment pertains to the interactions between internal organs and the external environment;and the logic of scenographic embodiment includes the design of empathetic scenes and subtler environmental layouts.In essence,this study underscores that modern design logic should consider the interplay between the human body,behavior,and the environment.Such Embodied Design logic offers new theoretical perspectives and guiding principles for future research and practical applications in design methodologies.展开更多
基金supported by Beijing University of Civil Engineering and Architecture Nature Science(ZF16078,X18067)
文摘It is difficult to rescue people from outside, and emergency evacuation is still a main measure to decrease casualties in high-rise building fires. To improve evacuation efficiency, a valid and easily manipulated grouping evacuation strategy is proposed. Occupants escape in groups according to the shortest evacuation route is determined by graph theory. In order to evaluate and find the optimal grouping, computational experiments are performed to design and simulate the evacuation processes. A case study shown the application in detail and quantitative research conclusions is obtained. The thoughts and approaches of this study can be used to guide actual high-rise building evacuation processes in future.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11775100,12247101,and 11961131009)the financial support from the China Scholarship Council(Grant No.CSC202306180087)the financial support from the Institute for Basic Science in Korea(Grant No.IBS-R024-D1)。
文摘We report on the theoretical and experimental investigations of the transition of a typical quantum system with mixed regular-integrable classical dynamics to one with violated time-reversal(T)invariance.The measurements are performed with a flat superconducting microwave resonator with circular shape in which chaoticity is induced by using either long antennas or inserting two circular disks into the cavity,and by magnetizing a ferrite disk placed at its center,which leads to violation of T invariance.We propose an extension of the Rosenzweig-Porter(RP)model,which interpolates between mixed regular-chaotic instead of integrable dynamics and fully chaotic dynamics with violated T-invariance,and derive a Wigner-surmise like analytical expression for the corresponding nearest-neighbor spacing distribution.We propose a procedure involving this result and those for the RP model to determine the size of T-invariance violation and chaoticity and validate it employing the experimental eigenfrequency spectra.
基金supported by the National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIT)(NRF-2022R1C1C1011058)。
文摘In this review,we discuss the electrochemical properties of Prussian blue(PB)for Na^(+)storage by combining structural engineering and electrolyte modifications.We integrated experimental data and density functional theory(DFT)in sodium-ion battery(SIB)research to refine the atomic arrangements and crystal lattices and introduce substitutions and dopants.These changes affect the lattice stability,intercalation,electronic and ionic conductivities,and electrochemical performance.We unraveled the intricate structure-electrochemical behavior relationship by combining experimental data with computational models,including first-principles calculations.This holistic approach identified techniques for optimizing PB and Prussian blue analog(PBA)structu ral properties for SIBs.We also discuss the tuning of electrolytes by systematically adjusting their composition,concentration,and additives using a combination of molecular dynamics(MD)simulations and DFT computations.Our review offers a comprehensive assessment of strategies for enhancing the electrochemical properties of PB and PBAs through structural engineering and electrolyte modifications,combining experimental insights with advanced computational simulations,and paving the way for next-generation energy storage systems.
基金This study was supported by the Humanities and Social Sciences Project of the Ministry of Education(No.23YJA790070)the Graduate Innovation Research Project of Southwest Minzu University(No.YB2022621)the Research Project of BCIMY(No.BCIMY1910).
文摘Establishing a sense of ritual within tourism consumption scenarios offers tourists the opportunity for interactive engagement.Drawing upon the value co-creation theory,this study constructed an influence mechanism model to examine tourists'active engagement in the process of co-creating tourism experience values.It employed Partial Least Squares Structural Equation Modeling(PLS-SEM)to empirically test the proposed hypotheses.The findings demonstrate that the model constructed in the present study exhibits robust reliability,validity,and explanatory power.The perception of the sense of ritual in tourism exerts a significant positive influence on tourists’co-creation of tourism experience values,thereby significantly enhancing both the communitas and flow experienced by tourists during their travels.Moreover,such communitas and flow can mediate the influence of the sense of ritual in tourism on tourists’co-creation of tourism experience values.This study contributes to advancing the current research on tourists’co-creation of tourism experience values and the sense of ritual in tourism,thereby providing theoretical foundations for cultivating a sense of ritual within tourism consumption scenarios.
基金Supported by Science and Technology Research Project of Henan Province (222102110444)Doctoral Startup Fund of Pingdingshan University (PXY-BSQD-202109)2022 Model Ideological and Political Theories Teaching in the Key Courses in Pingdingshan University (2020-JY05).
文摘Experimental course is an important link of ideological and political education in colleges and universities under the new situation,and plays an important role in the construction of ideological and political theories teaching in the course.Taking Pingdingshan University as an example,by introducing the real soil cases in Pingdingshan area,the ideological and political elements of the course are integrated into the teaching links of laboratory safety training,self-study before class,experimental teaching implementation,evaluation and improvement.By implementing the concept of"All-round Education"in experimental teaching,we are committed to realizing the comprehensive coverage of value shaping,knowledge inheritance and ability training,and explore and practice the reform of ideological and political theories teaching in the course of Soil Science Experiment.
文摘he evolution and nucleation of microcracks in typical tectonics are investigated in the experiment of fracture of marble specimen. The change of state during nucleation of microcracks is observed. The controlling effect of tectonics on evolution of microcracks is analyzed by using thc damage mechanics theory. These characteristics can be analogized to kilometer meters as the first effect of earthquake precursors. These studies may be helpful to interpret-the foreshock or general foreshock in the moderate or short stage before strong earthquakes. The other physical precursors are second or third effect. The local density of microcracks increasing abruptly may be helpful to interpret the phenomenon that part precursor records appear catastrophic jump. The part out of nucleation where some microcracks heal and the density change reversibly may be helpful to interpret the phenomenon that some precursors records appear reverse change. The area difference of microcracks accumulation and evolution in different part of typital tectonics is studied. This difference may be helpful to interpret the characteristics (including the area) of earthquake preparation of diffcrent tectonics, and further to interpret the difference of the precursors beween plate edge and intraplate. These differences may be introduced by the scholars with different points of view as to discuss about the existence of precursors before earthquakes. However, when the precursor records are studied, one must notice the geology background in different areas.
文摘Based on the blasting theory and stress wave theory, stemming mechanism and movement of stemmed material in rock blasting were analyzed and the calculation expression of stemming lengths was deduced. The blasting experiment with different stemming lengths was carried out and the results show that the theoretical stemming length, which is 0.73 ~ 0.8 time of burden, is in the range of the experiential length, which is O. 63 - O. 88 time of burden. The blasting results of field experiments with theoretical stemming length are satisfactory, which shows the theoretical derivation and analysis are correct and reliable. The results will supply rock blasting with the theoretical gist of parameters design.
基金Funded by the National Natural Science Foundation of China(Nos.50808173 and 51208504)
文摘Based on the similarity theory,a new experimentalmethod named Similar ExperimentalMethod for Durability of Concrete(SEMDC)was established.The existing experimentalmethods for durability of concrete were summarized,and the merits and demerits of these experimentalmethods were analyzed.Major factors affecting the durability of concrete were found through literature review.These factors were analyzed and the similarity criteria were established according to the similarity theory,and then the SEMDC was established according to the rules of these criteria.The various influentialfactors of the experimentalmethod were analyzed and the merits and demerits of this new experimentalmethod were discussed.According to SEMDC,changing the geometry shrinkage ratio was the only way to accelerate the test in order to keep the experiment similar to the reality.There were few other parameters which need to be changed in SEMDC,making the test easy to be achieved.According to SEMDC,time shrinkage ratio was the square of geometric shrinkage ratio,so an appropriate increase of the geometric shrinkage ratio could accelerate the test.Finally,an example of experimentaldesign for durability of concrete was devised theoretically base on SEMDC theory.
文摘Background: Dilated cardiomyopathy is a refractory myocardial disease with a poor prognosis. Mrs. G experienced cardiopulmonary arrest during hospitalization. She constantly struggles with uncertainty and experiences immense mental suffering from her symptoms, treatments, anxiety, and prognosis. This condition requires appropriate nursing care. Purpose: This study, which is based on Margaret Newman’s theory, aims to clarify the experience of illness of Mrs. G who has dilated cardiomyopathy. Methods: This involved interpretive and dialectical praxis research. The researcher and Mrs. G formed a partnership through discussion. Hermeneutical analysis was performed on the discussion content. Results: The experience of illness of Mrs. G consisted of 6 phases: “Looking back on the shock of having an illness and receiving medical treatment”, “Looking back on one’s life until present”, “Confusion resulting from uncertainty”, “Self-insight”, “Recognizing one’s true feelings of wanting to live”, and “Commitment and decision to live”. Mrs. G could find a new self and expand her consciousness. Conclusion: Mrs. G found meaning in coping with her illness and discovered the value of living while accepting her own destiny. She connected to her own life and became more prepared to live with hope. Thus, partnership in nursing care according to Newman’s theory can benefit patients with distress from dilated cardiomyopathy. This nursing support can improve patient outlook.
文摘Looped light in a recent sophisticated real three-slit experiment is interpreted as a strong justification of the old theoretical Peano-Hilbert spacetime model of Ord and El Naschie. This in turn entails the existence of extra fractal dimensions and consequently of real dark energy density in full agreement with previous analysis as well as accurate measurements and observations of COBE, WMAP, and the type 1a supernova.
基金supported by the Center for Natural Disaster Science(CNDS)the Swedish Research Council(VR,Grant Number 2015-04657)+1 种基金Lars Hiertas FoundationBengt Ingestrms scholarship fund
文摘When designing a wave power plant, reliable and fast simulation tools are required. Computational fluid dynamics (CFD) software provides high accuracy but with a very high computational cost, and in operational, moderate sea states, linear potential flow theories may be sufficient to model the hydrodynamics. In this paper, a model is built in COMSOL Multiphysics to solve for the hydrodynamic parameters of a point-absorbing wave energy device. The results are compared with a linear model where the hydrodynamical parameters are computed using WAMIT, and to experimental results from the Lysekil research site. The agreement with experimental data is good for both numerical models.
文摘This paper will present questions from three perspectives about Quantum Mechanics (QM): physics, epistemological, and metaphysical. The quantum phenomena do not fit with the parameters of classical physics, so a daily intuition on macroscopic world is dispensable when it is the quantum object investigated. This physical domain induces a new thinking, which requires also new concepts to describe such object. The QM is disturbing and stimulates epistemological reflections, as the issues of access about what is known; and metaphysical theme are not to be left behind with regard to QM: What would the quantum object to? What is apprehended when this object is perceived, once considered the disturbing characteristics that constitute its physical description: interference and non-separability? What is its nature? This paper focuses briefly on the analysis of B. d'Espagnat in Veiled Reality, which would represent the physical perspective of QT; for epistemological questions, one will resort to the Kantian conception of knowledge; and with regard to the metaphysical perspective, we will rely on an article by Professor J. B. Arenhart. It is necessary to note that the question that pervades in this paper is about if the experience in QM is built. Thus, we will try to seek clarity on the philosophical issues through QT, regarding the problems about the possibility of knowledge of the quantum object and its nature, and whether experience in this case is built. But furthermore, the QM instigates us to think whether metaphysics proceeds on the investigation of nature when it comes to the QM. And such a question is more than to have as problem as the scope of the description of physical data, but rather whether it makes sense or whether metaphysical research is pertinent to the QM.
文摘A new and falsifiable realist interpretation of quantum mechanics is examined in relation to the sum over histories concept, pilot wave theory and the many-worlds interpretation. This electric charge/transactional model explains how the single electron double-slit experiment produces extremely localized endpoints from diffracted wavicles, why these endpoints are scattered around the entire surface of the absorber screen, and why these points of contact result in the characteristic fringe pattern as they accumulate. Advanced waves and substantive electric charge effects in the double-slit experiment are postulated, then this hypothesis is supported by a quantitative analysis of electron emission in comparison to lightning. The wider implications if advanced waves and electric charge distribution prove to be significant factors in the double-slit experiment are discussed, including possible parallels with meteorological and neurological phenomena.
基金supported by the project of the National Social Science Foundation of China entitled“Research on the Mechanism of Deep Integration of Modern Services Industry and Advanced Manufacturing Industry Driven by Digital Technology Innovation”(Project No.21BJY144).
文摘Based on Joseph Schumpeter’s theory of“creative destruction,”we constructed a multi-sectoral endogenous growth model that integrates the agriculture,manufacturing,and service sectors.Employing numerical simulation,we investigated the dynamic influence of technological innovation on the industrial structural transformation in two key aspects:the level of innovation and the research and development(R&D)efficiency within industries.Our findings indicate that technological innovation plays a pivotal role in advancing industrial structural transformation.Enhancements in both the level of innovation and R&D efficiency within industries are instrumental in fostering industrial structural transformation.Specifically,the enhancements in the level of innovation or R&D efficiency within the agricultural sector hasten its transition toward the manufacturing sector,while such enhancement within the manufacturing sector expedites its transition toward the service sector.However,such enhancements within the service sector tend to decelerate the transition from manufacturing to service.In light of this,it is essential to harness technological innovation to enhance the level of innovation and R&D efficiency in industries to facilitate the transition of traditional industries into high-value-added and emerging ones.Meanwhile,tailored technological innovation strategies should be implemented to boost a balanced industrial structural transformation within industries.
文摘Instead of relying on the erroneous principles of Special Relativity, this paper proposes a new theory based on the emission of photons by a source and their re-emission by a transparent medium. Through over 60 articles, we have demonstrated that Special Relativity is based on optical experiments and observations that have been incorrectly explained by the theory of a non-existent ether. Our findings show that all known experiments can be explained using classical concepts of space and time, thereby refuting the theory of relativity. This article also addresses the fallacy of the widely accepted etheric Doppler effects and its significant role in the history of science.
文摘Inspired by Maurice Merleau-Ponty’s phenomenology of perception and the concept of“body-subject”,this study advances a new paradigm of“embodied”design thinking.This approach not only investigates how design can foster an organic connection between people and the world but also delves into the“embodiment of emotions”within design practices,thereby strengthening emotional resonance and empathy between design works and individuals.This transformation in design thinking holds significant importance for advancing and deepening research into design methodologies.The research aims to enhance the understanding of the intrinsic logic within design,aiding designers in creating works that resonate more profoundly with human daily productivity and life,and facilitating an emotional dialogue between the design and its users.Originating from a profound human-centered design philosophy and guided by Don Ihde’s theory of embodiment,the study begins with the functional relationships of bodily embodiment,employing phenomenological methods in design,enriched by in-depth case study analysis.Our research analysis has revealed three core logics of bodily embodiment in design:The logic of behavioral embodiment emphasizes innate and acquired human behavioral patterns;the logic of organ embodiment pertains to the interactions between internal organs and the external environment;and the logic of scenographic embodiment includes the design of empathetic scenes and subtler environmental layouts.In essence,this study underscores that modern design logic should consider the interplay between the human body,behavior,and the environment.Such Embodied Design logic offers new theoretical perspectives and guiding principles for future research and practical applications in design methodologies.