With the proposed carbon-neutrality targets,intermittent renewable energy will become increasingly significant for the power sector in the future.It is vital to study its development paths,particularly for wind power ...With the proposed carbon-neutrality targets,intermittent renewable energy will become increasingly significant for the power sector in the future.It is vital to study its development paths,particularly for wind power and photovoltaics,while considering constraints on diffusion potential.Using learning curves,dynamic programming,and Bass models,this study analyzes technological diffusion trends to determine the most cost-effective development route for intermittent renewable energy power generation in China by 2060.This study simplifies reality by examining the individual diffusion processes of wind and photovoltaic power,focusing on the self-diffusion characteristics of the two technologies.The study assumes that self-diffusion is the primary driver of future development and describe the influence of multiple factors.The study finds that supportive policies are key drivers of development in the early stages of intermittent renewable energy deployment,especially for photovoltaics.The current diffusion scale of photovoltaics has a greater positive impact on its future development than that of wind power due to lower costs.In the long term,the phased goal for 2030 is projected to be met ahead of schedule,and the majority of future intermittent renewable energy output is expected to come from photovoltaics.The rapid development phases of photovoltaic and wind power conclude at similar times,but the maximum diffusion potential of photovoltaics is higher than that of wind power.Investment constraints and technological levels affect the initial and middle phases of the development path,but their effects are limited.The capacity of the power grid remains the key constraint in the entire research field.展开更多
Based on the open-plus-closed-loop （OPCL） control method a systematic and comprehensive controller is presented in this paper for a chaotic system, that is, the Newton-Leipnik equation with two strange attractors： ...Based on the open-plus-closed-loop （OPCL） control method a systematic and comprehensive controller is presented in this paper for a chaotic system, that is, the Newton-Leipnik equation with two strange attractors： the upper attractor （UA） and the lower attractor （LA）. Results show that the final structure of the suggested controller for stabilization has a simple linear feedback form. To keep the integrity of the suggested approach, the globality proof of the basins of entrainment is also provided. In virtue of the OPCL technique, three different kinds of chaotic controls of the system are investigated, separately： the original control forcing the chaotic motion to settle down to the origin from an arbitrary position of the phase space; the chaotic intra-attractor control for stabilizing the equilibrium points only belonging to the upper chaotic attractor or the lower chaotic one; and the inter-attractor control for compelling the chaotic oscillation from one basin to another one. Both theoretical analysis and simulation results verify the validity of the proposed means.展开更多
This paper introduces the concept of linear-control-based synchronization of coexisting attractor networks with time delays. Within the new framework, closed loop control for each dynamic node is realized through line...This paper introduces the concept of linear-control-based synchronization of coexisting attractor networks with time delays. Within the new framework, closed loop control for each dynamic node is realized through linear state feedback around its own arena in a decentralized way, where the feedback matrix is determined through consideration of the coordination of the node dynamics, the inner connected matrix and the outer connected matrix. Unlike previously existing results, the feedback gain matrix here is decoupled from the inner matrix; this not only guarantees the flexible choice of the gain matrix, hut also leaves much space for inner matrix configuration. Synchronization of coexisting attractor networks with time delays is made possible in virtue of local interaction, which works in a distributed way between individual neighbours, and the linear feedback control for each node. Provided that the network is connected and balanced, synchronization will come true naturally, where theoretical proof is given via a Lyapunov function. For completeness, several illustrative examples are presented to further elucidate the novelty and efficacy of the proposed scheme.展开更多
This paper introduces the concept of hierarchical-control-based output synchronization of coexisting attractor networks. Within the new framework, each dynamic node is made passive at first utilizing intra-control aro...This paper introduces the concept of hierarchical-control-based output synchronization of coexisting attractor networks. Within the new framework, each dynamic node is made passive at first utilizing intra-control around its own arena. Then each dynamic node is viewed as one agent, and on account of that, the solution of output synchronization of coexisting attractor networks is transformed into a multi-agent consensus problem, which is made possible by virtue of local interaction between individual neighbours; this distributed working way of coordination is coined as inter-control, which is only specified by the topological structure of the network. Provided that the network is connected and balanced, the output synchronization would come true naturally via synergy between intra and inter-control actions, where the rightness is proved theoretically via convex composite Lyapunov functions. For completeness, several illustrative examples are presented to further elucidate the novelty and efficacy of the proposed scheme.展开更多
OBJECTIVES: To study the expression of inflammatory signal in local prostate tissue of chronic pelvic pain syndrome(CPPS) rats by electroacupuncture(EA) of Guanyuan(CV4), Zhongji(CV3), Huiyang(BL35) and Sanyinjiao(SP6...OBJECTIVES: To study the expression of inflammatory signal in local prostate tissue of chronic pelvic pain syndrome(CPPS) rats by electroacupuncture(EA) of Guanyuan(CV4), Zhongji(CV3), Huiyang(BL35) and Sanyinjiao(SP6), and to explore the possible mechanism of anti-inflammatory and analgesic effects of EA. METHODS : A total of 36 Sprague-Dawley male rats were randomly divided into three groups: control, model and EA(n=12 rats/group). The CPPS model was made by injection of CFA into ventral lobes of the prostate(0.1 m L). Electric acupuncture apparatus was applied to stimulate Guanyuan(CV4), Zhongji(CV3), bilateral Huiyang(BL35) and Sanyinjiao(SP6) acupoints in EA group. The general condition of rats was observed and the prostate index(PI) was calculated. The thermal pain threshold was collected after each therapeutic course. Histopathological changes of the prostate tissue were examined by hematoxylin-eosin staining method. The expression levels of tumor necrosis factor α(TNF-α), interleukin-1β(IL-1β) and prostaglandin E2(PGE2) in prostatic homogenates were measured by enzyme linked immunosorbent assay(ELISA). Moreover, the expression levels of purinergic 2X7 receptor(P2X7R), NOD-like receptor pyrin domain-containing 3(NLRP3), caspase-1 and interleukin-18(IL-18) m RNA were quantified by quantitative real-time polymerase chain reaction. RESULTS: Compared with control group, the PI of rats increased, and the thermal pain threshold decreased significantly in model group. The morphological structure of prostate tissues of rats in model group was severely damaged with a large number of inflammatory cells infiltration. Additionally, the levels of TNF-α, IL-1β and PGE2 were higher, and the expressions of P2X7R, NLRP3, caspase-1 and IL-18 m RNA were higher than those in control group. After EA treatment, the PI was significantly decreased, the thermal pain threshold was significantly increased, and the tissue damage was significantly improved. The expressions of inflammatory cytokines were lower in EA group, and expression of P2X7R/NLRP3 pathway was down-regulated. CONCLUSION: The effect of EA at Guanyuan(CV4), Zhongji(CV3), Huiyang(BL35) and Sanyinjiao(SP6) can improve inflammation and pain symptoms of CPPS rats induced by Complete Freund’s adjuvant(CFA). This suggests that EA at Guanyuan(CV4), Zhongji(CV3), Huiyang(BL35) and Sanyinjiao(SP6) can produce antiinflammatory analgesia effect by preventing the activation of P2X7R/NLRP3 signal pathway, inhibit the release of inflammatory cytokines in CPPS rats, which may provide a putative novel target for the treatment of CPPS.展开更多
Experiments performed with the aim to explain pattern formation in plasma devices offer, as I will show in this survey, a new insight into the mechanism by which locally matter transits spontaneously from a disordered...Experiments performed with the aim to explain pattern formation in plasma devices offer, as I will show in this survey, a new insight into the mechanism by which locally matter transits spontaneously from a disordered state into an ordered one. The essential news revealed by these experiments is the identification of a population of electrons that, driven at a critical distance from thermal equilibrium, is able to act as the organizer of the emergence and the survival of a complexity starting from chaos, i.e., from electric sparks the appearance of which is controlled by deterministic chaos. Supplied at a constant rate with thermal energy extracted by electrons from plasma, the complexity survives in a dynamical state performing operations in agreement with a code directly related to electrons thermal energy distribution function. Acting as a constituent of the matter, the population of electrons intrinsically controls the emergence and the survival of the complexity. Performing operations directly related to electron’s thermal energy distribution function, the complexity evolves stepwise in more advanced self-organized dynamical states, when this function is changed by an additional injection of energy. A set of nonlinear phenomena, not explainable by classical processes is involved in the mechanism by which the complexity emerges, survives and evolves. Thus, phenomena like Bose-Einstein condensation, macroscopic quantum coherence, direct and alternate Josephson effects, electron tunneling, negative differential impedance and others, potentially explain the emergence, functionality and vitality, i.e., the dynamical state of the complexity.展开更多
Estuaries are usually characterized by strong spatial and temporal variability in water physicochemical conditions and are often largely affected by human activities.One important source of variability is caused by ti...Estuaries are usually characterized by strong spatial and temporal variability in water physicochemical conditions and are often largely affected by human activities.One important source of variability is caused by tides that can swiftly alter not only physicochemical conditions but also the abundance and composition of the biota.The effect of the diurnal tidal cycle on microbial community composition during different seasons remains uncertain,although this knowledge underlies having effective monitoring programs for water quality and potential identification of health risk conditions.In this study,we assessed the bacterioplankton community composition and diversity across four tidal water levels in a tropical estuary characterized by a mixed semidiurnal tide regime(i.e.,two high and two low tides of varying amplitudes)during both dry and wet seasons.The bacterial community composition varied significantly among the four tidal levels,but only during the dry season,when the influence of the seawater intrusion was largest.Bacterial indicators’taxa identified using the Indicator Value Index were found within Cyanobacteria,Actinobacteriota,Bacteroidota,and Proteobacteria.The indicator taxon Cyanobium sp.had a prominent presence across multiple tidal levels.The main predicted phenotypes of the bacterial communities were associated with potential pathogenicity,gram-negative,and biofilm formation traits.While there were no marked predicted phenotypic differences between seasons,pathogenic and gram-negative traits were more prevalent in the dry season,while biofilm formation traits dominated in the wet season.Overall,our findings underscore the intricate relationship between river hydrodynamics and bacterial composition variability and hint a significant human impact on the water quality of the Bangpakong River.展开更多
基金support from the National Natural Science Foundation of China[Grant No.71874121,No.71671121 and No.71431005]the support from the National Key R&D Programme of China[Grant No.2018YFC0704400]+1 种基金the support from Major Projects of the National Social Science Fund of China[Grant No.17ZDA065]the support from the General Project of the Humanities and Social Science Fund of the Chinese Ministry of Education[Grant No.21YJA630023].
文摘With the proposed carbon-neutrality targets,intermittent renewable energy will become increasingly significant for the power sector in the future.It is vital to study its development paths,particularly for wind power and photovoltaics,while considering constraints on diffusion potential.Using learning curves,dynamic programming,and Bass models,this study analyzes technological diffusion trends to determine the most cost-effective development route for intermittent renewable energy power generation in China by 2060.This study simplifies reality by examining the individual diffusion processes of wind and photovoltaic power,focusing on the self-diffusion characteristics of the two technologies.The study assumes that self-diffusion is the primary driver of future development and describe the influence of multiple factors.The study finds that supportive policies are key drivers of development in the early stages of intermittent renewable energy deployment,especially for photovoltaics.The current diffusion scale of photovoltaics has a greater positive impact on its future development than that of wind power due to lower costs.In the long term,the phased goal for 2030 is projected to be met ahead of schedule,and the majority of future intermittent renewable energy output is expected to come from photovoltaics.The rapid development phases of photovoltaic and wind power conclude at similar times,but the maximum diffusion potential of photovoltaics is higher than that of wind power.Investment constraints and technological levels affect the initial and middle phases of the development path,but their effects are limited.The capacity of the power grid remains the key constraint in the entire research field.
基金Project supported by the National Natural Science Foundation of China （Grant No 60374013）, the Doctorate Foundation of Henan Polytechnic University, China （Grant No 648606）. Acknowledgments The author is greatly indebted to the authors of the references for their original valuable work.
文摘Based on the open-plus-closed-loop （OPCL） control method a systematic and comprehensive controller is presented in this paper for a chaotic system, that is, the Newton-Leipnik equation with two strange attractors： the upper attractor （UA） and the lower attractor （LA）. Results show that the final structure of the suggested controller for stabilization has a simple linear feedback form. To keep the integrity of the suggested approach, the globality proof of the basins of entrainment is also provided. In virtue of the OPCL technique, three different kinds of chaotic controls of the system are investigated, separately： the original control forcing the chaotic motion to settle down to the origin from an arbitrary position of the phase space; the chaotic intra-attractor control for stabilizing the equilibrium points only belonging to the upper chaotic attractor or the lower chaotic one; and the inter-attractor control for compelling the chaotic oscillation from one basin to another one. Both theoretical analysis and simulation results verify the validity of the proposed means.
基金Project supported by the National Natural Science Foundation of China (Grant No.60850004)the Funds for Creative Research Talents of Henan Education Bureau,China (Grant No.2009HASTIT021)+3 种基金the Natural Science Foundation of Henan Education Bureau,China (Grant No.2008A120005)Fundamental & Frontier Technology Research Planning Project of Henan Province,China (Grant No.072300460050)Doctorate Program of Henan Polytechnic University (Grant No.648606)Young Teacher Key Talents Program of Henan Polytechnic University (Grant No.649033)
文摘This paper introduces the concept of linear-control-based synchronization of coexisting attractor networks with time delays. Within the new framework, closed loop control for each dynamic node is realized through linear state feedback around its own arena in a decentralized way, where the feedback matrix is determined through consideration of the coordination of the node dynamics, the inner connected matrix and the outer connected matrix. Unlike previously existing results, the feedback gain matrix here is decoupled from the inner matrix; this not only guarantees the flexible choice of the gain matrix, hut also leaves much space for inner matrix configuration. Synchronization of coexisting attractor networks with time delays is made possible in virtue of local interaction, which works in a distributed way between individual neighbours, and the linear feedback control for each node. Provided that the network is connected and balanced, synchronization will come true naturally, where theoretical proof is given via a Lyapunov function. For completeness, several illustrative examples are presented to further elucidate the novelty and efficacy of the proposed scheme.
基金supported by the State Key Laboratory of Scientific&Engineering Computing, Chinese Academy of Sciencesthe National Natural Science Foundation of China (Grant No. 60850004)+4 种基金the Funds for Creative Research Talents of Henan Education Bureau, China (Grant No. 2009HASTIT021)the Natural Science Foundation of Henan Education Bureau, China(Grant No. 2008A120005)Fundamental&Frontier Technology Research Planning Project of Henan Province,China (Grant No.072300460050)Doctoral Program of Henan Polytechnic University (Grant No. 648606)Young Teacher Key Talents Program of Henan Polytechnic University (Grant No. 649033)
文摘This paper introduces the concept of hierarchical-control-based output synchronization of coexisting attractor networks. Within the new framework, each dynamic node is made passive at first utilizing intra-control around its own arena. Then each dynamic node is viewed as one agent, and on account of that, the solution of output synchronization of coexisting attractor networks is transformed into a multi-agent consensus problem, which is made possible by virtue of local interaction between individual neighbours; this distributed working way of coordination is coined as inter-control, which is only specified by the topological structure of the network. Provided that the network is connected and balanced, the output synchronization would come true naturally via synergy between intra and inter-control actions, where the rightness is proved theoretically via convex composite Lyapunov functions. For completeness, several illustrative examples are presented to further elucidate the novelty and efficacy of the proposed scheme.
基金Supported by Fundamental Research Funds for the Central Universities Project:RNA Sequencing Technology Screening the Mechanism of Acupuncture on Pain in Chronic Pelvic Pain Syndrome Rats (2020-JYB-XJSJJ-018)。
文摘OBJECTIVES: To study the expression of inflammatory signal in local prostate tissue of chronic pelvic pain syndrome(CPPS) rats by electroacupuncture(EA) of Guanyuan(CV4), Zhongji(CV3), Huiyang(BL35) and Sanyinjiao(SP6), and to explore the possible mechanism of anti-inflammatory and analgesic effects of EA. METHODS : A total of 36 Sprague-Dawley male rats were randomly divided into three groups: control, model and EA(n=12 rats/group). The CPPS model was made by injection of CFA into ventral lobes of the prostate(0.1 m L). Electric acupuncture apparatus was applied to stimulate Guanyuan(CV4), Zhongji(CV3), bilateral Huiyang(BL35) and Sanyinjiao(SP6) acupoints in EA group. The general condition of rats was observed and the prostate index(PI) was calculated. The thermal pain threshold was collected after each therapeutic course. Histopathological changes of the prostate tissue were examined by hematoxylin-eosin staining method. The expression levels of tumor necrosis factor α(TNF-α), interleukin-1β(IL-1β) and prostaglandin E2(PGE2) in prostatic homogenates were measured by enzyme linked immunosorbent assay(ELISA). Moreover, the expression levels of purinergic 2X7 receptor(P2X7R), NOD-like receptor pyrin domain-containing 3(NLRP3), caspase-1 and interleukin-18(IL-18) m RNA were quantified by quantitative real-time polymerase chain reaction. RESULTS: Compared with control group, the PI of rats increased, and the thermal pain threshold decreased significantly in model group. The morphological structure of prostate tissues of rats in model group was severely damaged with a large number of inflammatory cells infiltration. Additionally, the levels of TNF-α, IL-1β and PGE2 were higher, and the expressions of P2X7R, NLRP3, caspase-1 and IL-18 m RNA were higher than those in control group. After EA treatment, the PI was significantly decreased, the thermal pain threshold was significantly increased, and the tissue damage was significantly improved. The expressions of inflammatory cytokines were lower in EA group, and expression of P2X7R/NLRP3 pathway was down-regulated. CONCLUSION: The effect of EA at Guanyuan(CV4), Zhongji(CV3), Huiyang(BL35) and Sanyinjiao(SP6) can improve inflammation and pain symptoms of CPPS rats induced by Complete Freund’s adjuvant(CFA). This suggests that EA at Guanyuan(CV4), Zhongji(CV3), Huiyang(BL35) and Sanyinjiao(SP6) can produce antiinflammatory analgesia effect by preventing the activation of P2X7R/NLRP3 signal pathway, inhibit the release of inflammatory cytokines in CPPS rats, which may provide a putative novel target for the treatment of CPPS.
文摘Experiments performed with the aim to explain pattern formation in plasma devices offer, as I will show in this survey, a new insight into the mechanism by which locally matter transits spontaneously from a disordered state into an ordered one. The essential news revealed by these experiments is the identification of a population of electrons that, driven at a critical distance from thermal equilibrium, is able to act as the organizer of the emergence and the survival of a complexity starting from chaos, i.e., from electric sparks the appearance of which is controlled by deterministic chaos. Supplied at a constant rate with thermal energy extracted by electrons from plasma, the complexity survives in a dynamical state performing operations in agreement with a code directly related to electrons thermal energy distribution function. Acting as a constituent of the matter, the population of electrons intrinsically controls the emergence and the survival of the complexity. Performing operations directly related to electron’s thermal energy distribution function, the complexity evolves stepwise in more advanced self-organized dynamical states, when this function is changed by an additional injection of energy. A set of nonlinear phenomena, not explainable by classical processes is involved in the mechanism by which the complexity emerges, survives and evolves. Thus, phenomena like Bose-Einstein condensation, macroscopic quantum coherence, direct and alternate Josephson effects, electron tunneling, negative differential impedance and others, potentially explain the emergence, functionality and vitality, i.e., the dynamical state of the complexity.
基金supported by Burapha University through the National Research Council of Thailand(Grant number:53/2562)to CPfunding from ANID-Millennium Science Initiative Pro-gram-NCN2021-056,RS and CP received funding from the Aus-trian Agency for International Cooperation in Education and Research through the ASEA-UNINET Program(MPC-2022-04066).
文摘Estuaries are usually characterized by strong spatial and temporal variability in water physicochemical conditions and are often largely affected by human activities.One important source of variability is caused by tides that can swiftly alter not only physicochemical conditions but also the abundance and composition of the biota.The effect of the diurnal tidal cycle on microbial community composition during different seasons remains uncertain,although this knowledge underlies having effective monitoring programs for water quality and potential identification of health risk conditions.In this study,we assessed the bacterioplankton community composition and diversity across four tidal water levels in a tropical estuary characterized by a mixed semidiurnal tide regime(i.e.,two high and two low tides of varying amplitudes)during both dry and wet seasons.The bacterial community composition varied significantly among the four tidal levels,but only during the dry season,when the influence of the seawater intrusion was largest.Bacterial indicators’taxa identified using the Indicator Value Index were found within Cyanobacteria,Actinobacteriota,Bacteroidota,and Proteobacteria.The indicator taxon Cyanobium sp.had a prominent presence across multiple tidal levels.The main predicted phenotypes of the bacterial communities were associated with potential pathogenicity,gram-negative,and biofilm formation traits.While there were no marked predicted phenotypic differences between seasons,pathogenic and gram-negative traits were more prevalent in the dry season,while biofilm formation traits dominated in the wet season.Overall,our findings underscore the intricate relationship between river hydrodynamics and bacterial composition variability and hint a significant human impact on the water quality of the Bangpakong River.
