To point out that ＂analogical acupoint＂ is the acupoints with same indication effect by describing the concept of analogical acupoint, as well as its relationship with combination and prescription. ＂Analogical acup...To point out that ＂analogical acupoint＂ is the acupoints with same indication effect by describing the concept of analogical acupoint, as well as its relationship with combination and prescription. ＂Analogical acupoint＂ is the basic element for acupoint combination, while the acupoint combination is the foundation of acupuncture prescription. Finally, to make future prospect for the research thought of ＂analogical acupoint＂.展开更多
This paper presents an analogical study between electromagnetic and elastic wave fields,with a one-to-one correspondence principle established regarding the basic wave equations,the physical quantities and the differe...This paper presents an analogical study between electromagnetic and elastic wave fields,with a one-to-one correspondence principle established regarding the basic wave equations,the physical quantities and the differential operations.Using the electromagnetic-to-elastic substitution,the analogous relations of the conservation laws of energy and momentum are investigated between these two physical fields.Moreover,the energy-based and momentum-based reciprocity theorems for an elastic wave are also derived in the time-harmonic state,which describe the interaction between two elastic wave systems from the perspectives of energy and momentum,respectively.The theoretical results obtained in this analysis can not only improve our understanding of the similarities of these two linear systems,but also find potential applications in relevant fields such as medical imaging,non-destructive evaluation,acoustic microscopy,seismology and exploratory geophysics.展开更多
Analogical reasoning improvement is important in educational outcome improvement.Inspired by recent ideas and evidence,we applied anti-saccade task training as an executive attention intervention and tested whether it...Analogical reasoning improvement is important in educational outcome improvement.Inspired by recent ideas and evidence,we applied anti-saccade task training as an executive attention intervention and tested whether it could improve analogical reasoning performance.A serial-task paradigm was applied where participants performed an anti-saccade followed by an analogical reasoning task including a perception condition.The experimental group finished the anti-saccade task in which the ratio of anti-saccade trials to pro-saccade trials was 5:1 while the counterpart was 1:1 in the active control group.Also,a blank control group was established where participants merely finished the analogical reasoning task.Event-related electroencephalographic(EEG)data were recorded when participants were performing the executive attention and analogical reasoning tasks.In addition,their resting state EEG was collected before and after the executive attention intervention.Behaviorally,the experimental group reacted significantly faster than the other two groups in analogical reasoning but not in perception.At the neural level,in the experimental group alone,the anti-saccade trials elicited a smaller N2 than pro-saccade trials and the resting alpha power was improved after executive attention intervention.No significant difference in P2 was found between the two groups in analogical reasoning or perception but the experimental group showed a larger late positive component than the active control group in analogical reasoning.We also found that the late positive component mediated the relationship between the N2 of anti-saccade trials and analogical reasoning reaction times in the experimental group.We further discussed the role of executive attention in the analogical reasoning process,which may pave the way for the future reliable improvement of fluid intelligence.展开更多
At present,deep learning has been well applied in many fields.However,due to the high complexity of hypothesis space,numerous training samples are usually required to ensure the reliability of minimizing experience ri...At present,deep learning has been well applied in many fields.However,due to the high complexity of hypothesis space,numerous training samples are usually required to ensure the reliability of minimizing experience risk.Therefore,training a classifier with a small number of training examples is a challenging task.From a biological point of view,based on the assumption that rich prior knowledge and analogical association should enable human beings to quickly distinguish novel things from a few or even one example,we proposed a dynamic analogical association algorithm to make the model use only a few labeled samples for classification.To be specific,the algorithm search for knowledge structures similar to existing tasks in prior knowledge based on manifold matching,and combine sampling distributions to generate offsets instead of two sample points,thereby ensuring high confidence and significant contribution to the classification.The comparative results on two common benchmark datasets substantiate the superiority of the proposed method compared to existing data generation approaches for few-shot learning,and the effectiveness of the algorithm has been proved through ablation experiments.展开更多
As a method of logical thinking,analogical inference has a long history both in ancient Greece and in the ancient East,and has been widely used in the daily life.Even today it still plays an important role in understa...As a method of logical thinking,analogical inference has a long history both in ancient Greece and in the ancient East,and has been widely used in the daily life.Even today it still plays an important role in understanding and improving the world.Particularly,its cognitive function is not only reflected in the interpretation and further understanding of the existing knowledge,but more importantly,it can still improve our scientific level,expand our cognitive field,and help us open up the unknown field.That,of course,is where its innovation lies.From the perspective of analogical inference,its innovative function should be based on the identical or at least the similar relationship between the things.In addition,it should also be based on the ability of imagination played by the cognition subject.展开更多
A computational model of analogical reasoning is presented, which divides analogical reasoning process into four subprocesses, i.e. reminding, elaboration, matching and transfer. For each subprocess, its role and the ...A computational model of analogical reasoning is presented, which divides analogical reasoning process into four subprocesses, i.e. reminding, elaboration, matching and transfer. For each subprocess, its role and the principles it follows are given. The model is discussed in detail, including salient feature-based reminding, relevance-directed elaboration, an improved matching model and a transfer model. And the advantages of this model are summarized based on the results of BHARS, which is an analogical reasoning system implemented by this model.展开更多
This paper describes some experiments of analogical learning and automated rule construction.The present investigation focuses on knowledge acquisition,learning by analogy,and knowledge retention. The developed system...This paper describes some experiments of analogical learning and automated rule construction.The present investigation focuses on knowledge acquisition,learning by analogy,and knowledge retention. The developed system initially learns from scratch,gradually acquires knowledge from,its environment through trial-and-error interaction,incrementally augments its knowledge base,and analogically solves new tasks in a more efficient and direct manner.展开更多
Prussian blue analogs(PBAs)have emerged as environmentally friendly and structurally tunable cathode materials for aqueous ammonium-ion batteries(AIBs).However,the fundamental role of crystalline H_(2)O in regulating ...Prussian blue analogs(PBAs)have emerged as environmentally friendly and structurally tunable cathode materials for aqueous ammonium-ion batteries(AIBs).However,the fundamental role of crystalline H_(2)O in regulating ammonium-ion storage and transport remains poorly understood.In this study,we present a comprehensive comparison between hydrated NH_(4)NiHCF-H_(2)O and its anhydrous counterpart NH_(4)NiHCF,revealing the critical contribution of interstitial water to electrochemical performance.Structural and spectroscopic analyses confirm that interstitial water forms robust hydrogen bonds with NH_(4)+ions,stabilizing the PBA framework and mitigating structural degradation during cycling.Electrochemical measurements show that NH_(4)NiHCF-H_(2)O delivers a significantly higher specific capacity of 61 mA h g^(−1)at 0.2 C and markedly improved rate performance compared to NH_(4)NiHCF(48 mA h g^(−1)at 0.2 C).Kinetic analysis reveals that interstitial water enhances NH_(4)+diffusion,as evidenced by higher diffusion coefficients.Furthermore,density functional theory(DFT)calculations demonstrate that crystal water acts as a hydrogen bond acceptor,preferentially interacting with NH_(4)+and reducing the migration energy barrier,thereby facilitating fast ion transport.This work provides fundamental insights into the role of crystal water in PBAs and offers a rational design strategy for improving the kinetics,structural stability of PBAs cathodes for AIBs.展开更多
Objective:To explore the application effect of digital intraoral scanning impression technique in oral implant restoration for periodontitis patients and analyze its impact on patients’Visual Analogue Scale(VAS)score...Objective:To explore the application effect of digital intraoral scanning impression technique in oral implant restoration for periodontitis patients and analyze its impact on patients’Visual Analogue Scale(VAS)scores.Methods:A total of 80 periodontitis patients who received implant restoration in our hospital from May 2023 to May 2025 were selected as research subjects.They were randomly divided into an observation group and a control group using a random number table method,with 40 cases in each group.The observation group used the digital intraoral scanning impression technique to obtain impressions,while the control group used the traditional silicone rubber impression technique.The impression-taking time,the number of prostheses try-ins,implant survival rate,periodontal health indicators(probing depth,gingival index,bleeding index),and VAS scores(pain during treatment and comfort after restoration)were compared between the two groups.Results:The observation group was superior to the control group in terms of impression-taking time,the number of prostheses try-ins,and implant survival rate(p<0.05).Six months after restoration,the improvement in periodontal health indicators in the observation group was significantly better than that in the control group(p<0.05).In addition,the pain VAS score of the observation group during treatment was lower than that of the control group,and the comfort VAS score after restoration was higher than that of the control group(p<0.05).Conclusion:Digital intraoral scanning impression technology can effectively enhance the efficiency and success rate of implant restoration in periodontitis patients,improve periodontal health,alleviate patients’discomfort during treatment,and increase post-restoration comfort,demonstrating high clinical application value.展开更多
As technologies advance and replace human labor in a variety of settings,we focus our attention on human creativity for generating new ideas.Business organizations,more than ever,recognize that they need employees who...As technologies advance and replace human labor in a variety of settings,we focus our attention on human creativity for generating new ideas.Business organizations,more than ever,recognize that they need employees who think creatively to maintain their competitive edge.Nonetheless,there is a lack of research assessing new ideas and influential factors in generating innovative ideas.The aim of this study is to identify the factors that influence the creation of innovative ideas.We conducted two different types of workshops with 22 subjects and 23 subjects each.In the first workshop,subjects were asked to generate new business ideas through analogical thinking.As a result,half of the participants generated appropriate ideas,and three influential factors were determined:categorization skill,deliberation,and trial and error.The second workshop was designed to facilitate participants to enhance these three factors.As a result,70%of the participants could generate appropriate ideas.By identifying influential factors,this paper suggests a procedure for designing an innovationworkshop that enables the creation of appropriate ideas.展开更多
With the rapid development of new energy and the high proportion of new energy connected to the grid,energy storage has become the leading technology driving significant adjustments in the global energy landscape.Elec...With the rapid development of new energy and the high proportion of new energy connected to the grid,energy storage has become the leading technology driving significant adjustments in the global energy landscape.Electrochemical energy storage,as the most popular and promising energy storage method,has received extensive attention.Currently,the most widely used energy storage method is metal-ion secondary batteries,whose performance mainly depends on the cathode material.Prussian blue analogues(PBAs)have a unique open framework structures that allow quick and reversible insertion/extraction of metal ions such as Na^(+),K^(+),Zn^(2+),Li^(+)etc.,thus attracting widespread attention.The advantages of simple synthesis process,abundant resources,and low cost also distinguish it from its counterparts.Unfortunately,the crystal water and structural defects in the PBAs lattice that is generated during the synthesis process,as well as the low Na content,significantly affect their electrochemical performance.This paper focuses on PBAs’synthesis methods,crystal structure,modification strategies,and their potential applications as cathode materials for various metal ion secondary batteries and looks forward to their future development direction.展开更多
By the random distribution of metals in a single phase,entropy engineering is applied to construct dense neighboring active centers with diverse electronic and geometric structures,realizing the continuous optimizatio...By the random distribution of metals in a single phase,entropy engineering is applied to construct dense neighboring active centers with diverse electronic and geometric structures,realizing the continuous optimization of multiple primary reactions for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER).Many catalysts developed through entropy engineering have been built in nearly equimolar ratios to pursue high entropy,hindering the identification of the active sites and potentially diluting the concentration of real active sites while weakening their electronic interactions with reaction intermediates.Herein,this work proposes an entropy-engineering strategy in metal nanoparticle-embedded nitrogen carbon electrocatalysts,implemented by entropy-engineered Prussian blue analogs(PBA)as precursors to enhance the catalytic activity of primary Cu-Fe active sites.Through the introduction of the micro-strains driven by entropy engineering,density functional theory(DFT)calculations and geometric phase analysis(GPA)using Lorentz electron microscopy further elucidate the optimization of the adsorption/desorption of intermediates.Furthermore,the multi-dimensional morphology and the size diminishment of the nanocrystals serve to expand the electrochemical area,maximizing the catalytic activity for both ORR and OER.Notably,the Zn-air battery assembled with CuFeCoNiZn-NC operated for over 1300 h with negligible decay.This work presents a paradigm for the design of low-cost electrocatalysts with entropy engineering for multi-step reactions.展开更多
Propelled by the rise of artificial intelligence,cloud services,and data center applications,next-generation,low-power,local-oscillator-less,digital signal processing(DSP)-free,and short-reach coherent optical communi...Propelled by the rise of artificial intelligence,cloud services,and data center applications,next-generation,low-power,local-oscillator-less,digital signal processing(DSP)-free,and short-reach coherent optical communication has evolved into an increasingly prominent area of research in recent years.Here,we demonstrate DSP-free coherent optical transmission by analog signal processing in frequency synchronous optical network(FSON)architecture,which supports polarization multiplexing and higher-order modulation formats.The FSON architecture that allows the numerous laser sources of optical transceivers within a data center can be quasi-synchronized by means of a tree-distributed homology architecture.In conjunction with our proposed pilot-tone assisted Costas loop for an analog coherent receiver,we achieve a record dual-polarization 224-Gb/s 16-QAM 5-km mismatch transmission with reset-free carrier phase recovery in the optical domain.Our proposed DSP-free analog coherent detection system based on the FSON makes it a promising solution for next-generation,low-power,and high-capacity coherent data center interconnects.展开更多
The application of legal texts in the context of digital television is a process that relies on several normative instruments,ranging from international treaties,such as those of the ITU(International Telecommunicatio...The application of legal texts in the context of digital television is a process that relies on several normative instruments,ranging from international treaties,such as those of the ITU(International Telecommunications Union),to national regulations defining the obligations of audiovisual operators and the modalities of consumer support.Many countries have introduced specific laws and regulations to organize the gradual switch-off of analog broadcasting and encourage the adoption of new digital standards.Consequently,the digitization of Guinea’s broadcasting network cannot be carried out without taking into account the legal framework:allocation of resources and broadcasting players.Analog and digital broadcasting,according to regulatory texts,shows the relationships between the different communication management structures.As for digital broadcasting,we note the appearance of a new service,multiplex.展开更多
The removal of cesium-137(^(137)Cs)from nuclear wastewater remains crucial due to its radioactivity and high solubility in water,which pose serious risk to human health and the environment.Aiming at selective capture ...The removal of cesium-137(^(137)Cs)from nuclear wastewater remains crucial due to its radioactivity and high solubility in water,which pose serious risk to human health and the environment.Aiming at selective capture of Cs^(+) from wastewater,a core-shell adsorbent,Prussian blue analog@y-alumina(PBA@Al_(2)O_(3))pellets were synthesized using the hydrothermal-stepwise deposition method.The coreshell PBA@Al_(2)O_(3)pellets showcased a PBA loading of 25%and demonstrated a maximum adsorption capacity of 15.65 mg·g^(-1).The adsorption data was consistent with the pseudo-second-order kinetic model and the Langmuir isotherm model.It effectively reduced bulk Cs^(+) concentrations from an initial 6.62 mg·L^(-1)to 2 μg·L^(-1),achieving a removal efficiency of 99.97%and distribution coefficient(Kd)of 1.265×10^(6)ml·g^(-1),surpassing the performance of other PBA-based materials.The material also indicated good mechanical properties and cesium ion removal rates of 99.7%across a wide pH range(1.82 to 11.12).Furthermore,PBA@Al_(2)O_(3)exhibited consistent removal rate of over 99%and good selectivity(SF=50-1600)towards Cs^(+) even in the presence of interfering ions such as Na^(+),K^(+),Mg^(2+),and Ca^(2+)ions.The Kd(Cs^(+))for PBA@Al2O3 in simulated seawater and groundwater were 9.92×10^(3)and 2.23×10^(4)ml·g^(-1),where the removal rates reached 96.1%and 98.2%,respectively.XPS confirms that the adsorption mechanism is the ion exchange between Cs^(+) and K^(+)ions.This study underscores the significant potential of inorganic core-shell pellets adsorbents as promising agents for the selective capture of Cs^(+) from wastewater.展开更多
BACKGROUND Currently,colonoscopy still needs continuous optimization and exploration of novel alternative approaches to enhance the experience of patients during co-lonoscopy.AIM To analyze the efficacy of water infus...BACKGROUND Currently,colonoscopy still needs continuous optimization and exploration of novel alternative approaches to enhance the experience of patients during co-lonoscopy.AIM To analyze the efficacy of water infusion combined with defoamers in colono-scopy.METHODS This study included 97 patients undergoing colonoscopy from January 2024 to June 2024.The participants were categorized into two groups,namely,the control group(n=47),who underwent conventional colonoscopy,and the experimental group(n=50),who received colonoscopy using water injection combined with defoamers.A comparative analysis was then conducted on the disease detection rate(colonic polyps,colonorrhagia,colonic ulcers,colonic mucosal lesions,and others),colonoscopy duration,abdominal pain[visual analog scale(VAS)],Boston bowel preparation scale(BBPS),self-rating anxiety scale(SAS),bowel preparation comfort,complications(intestinal perforation,bleeding,nausea and vomiting,abdominal pain,and abdominal distension),and patient satisfaction.RESULTS The experimental group demonstrated a significantly higher total disease detection rate,BBPS scores,and patient satisfaction compared with the control group.Further,the research group exhibited shorter colonoscopy duration,lower VAS and SAS scores and total complication rate,and better patient comfort and satisfaction.CONCLUSION These results indicate that the combination of water injection and defoamers exhibited an overall better therapeutic effect than conventional colonoscopy,mainly reflected in higher disease detection rate,faster examination ef-ficiency,lower abdominal pain,anxiety,and complication incidences,and significantly better bowel preparation,comfort,and patient satisfaction.展开更多
Phase reconstruction plays a pivotal role in biology, medical imaging, and wavefront sensing. However, multiple measurements and adjustments are usually required for conventional schemes, which inevitably reduces the ...Phase reconstruction plays a pivotal role in biology, medical imaging, and wavefront sensing. However, multiple measurements and adjustments are usually required for conventional schemes, which inevitably reduces the quality of phase imaging. Here, based on multi-channel metasurface and quantum entanglement source, a simple and integrated quantum analog operation system is proposed to realize quantitative phase reconstruction with a high signal-to-noise ratio (SNR) under a low signal photon level. Without additional measurements and adjustments, four differential images necessary for the phase reconstruction are captured simultaneously. The non-local correlation of entangled photon pairs enables to remotely manipulate working modes of the system. Besides, the consistency of entangled photon pairs in time domain makes it possible to achieve a high SNR imaging by trigger detection. The results may potentially empower the application of metasurfaces in optical chip, wave function reconstruction, and label-free biology imaging.展开更多
To enable simultaneous transmit and receive(STAR)on the same frequency in a densely deployed space with multi-interference sources,this work proposes a digitally-assisted analog selfinterference cancellation method,wh...To enable simultaneous transmit and receive(STAR)on the same frequency in a densely deployed space with multi-interference sources,this work proposes a digitally-assisted analog selfinterference cancellation method,which can acquire reference signals through flexible wired/wireless switching access.Based on this method,the Minimum Mean Square Error algorithm with known channel state information is derived in detail,determining the upper limit of the cancellation performance,and the Adaptive Dithered Linear Search algorithm for real-time engineering cancellation is given.The correctness of theoretical analysis is verified by the practical self-interference channel measured by a vector network analyzer.Furthermore,we have designed and implemented the corresponding multiinterference cancellation prototype with the digitallyassisted structure,capable of handling multiple interferences(up to three)and supporting a large receive bandwidth of 100 MHz as well as a wide frequency coverage from 30 MHz to 3000 MHz.Prototype test results demonstrate that in the presence of three interferences,when the single interference bandwidth is 0.2/2/20 MHz(corresponding to the receive bandwidth of 2/20/100 MHz),the cancellation performance can reach 46/32/22 dB or more.展开更多
This paper focuses on the problems existing in the teaching of analog electronic technology courses,and puts forward the teaching reform idea of combining marine knowledge with the course content.Based on the BOPPPS t...This paper focuses on the problems existing in the teaching of analog electronic technology courses,and puts forward the teaching reform idea of combining marine knowledge with the course content.Based on the BOPPPS teaching model,specific teaching links are designed,and the teaching practice is carried out as an example of a low-power,high-precision microprocessor development project.The practical results show that the teaching reform improves students’learning interest and participation,cultivates students’engineering practice and innovation abilities,and provides a useful reference for the teaching reform of related courses.展开更多
基金Supported by Funding project of National Key Fundamental Research Development Planning("973"Plan):2014 CB 543100
文摘To point out that ＂analogical acupoint＂ is the acupoints with same indication effect by describing the concept of analogical acupoint, as well as its relationship with combination and prescription. ＂Analogical acupoint＂ is the basic element for acupoint combination, while the acupoint combination is the foundation of acupuncture prescription. Finally, to make future prospect for the research thought of ＂analogical acupoint＂.
基金funded by the National Natural Science Foundation of China(Grant No.12404507)the Natural Science Research of Jiangsu Higher Education Institutions of China(Grant No.24KJB140013)the Scientific Startup Foundation of Nanjing Normal University(Grant No.184080H201B49).
文摘This paper presents an analogical study between electromagnetic and elastic wave fields,with a one-to-one correspondence principle established regarding the basic wave equations,the physical quantities and the differential operations.Using the electromagnetic-to-elastic substitution,the analogous relations of the conservation laws of energy and momentum are investigated between these two physical fields.Moreover,the energy-based and momentum-based reciprocity theorems for an elastic wave are also derived in the time-harmonic state,which describe the interaction between two elastic wave systems from the perspectives of energy and momentum,respectively.The theoretical results obtained in this analysis can not only improve our understanding of the similarities of these two linear systems,but also find potential applications in relevant fields such as medical imaging,non-destructive evaluation,acoustic microscopy,seismology and exploratory geophysics.
基金This work was supported by grants from the National Natural Science Foundation of China(32171040 and 31900803)the Graduate Research Innovation Project of Chongqing(CYS20094).
文摘Analogical reasoning improvement is important in educational outcome improvement.Inspired by recent ideas and evidence,we applied anti-saccade task training as an executive attention intervention and tested whether it could improve analogical reasoning performance.A serial-task paradigm was applied where participants performed an anti-saccade followed by an analogical reasoning task including a perception condition.The experimental group finished the anti-saccade task in which the ratio of anti-saccade trials to pro-saccade trials was 5:1 while the counterpart was 1:1 in the active control group.Also,a blank control group was established where participants merely finished the analogical reasoning task.Event-related electroencephalographic(EEG)data were recorded when participants were performing the executive attention and analogical reasoning tasks.In addition,their resting state EEG was collected before and after the executive attention intervention.Behaviorally,the experimental group reacted significantly faster than the other two groups in analogical reasoning but not in perception.At the neural level,in the experimental group alone,the anti-saccade trials elicited a smaller N2 than pro-saccade trials and the resting alpha power was improved after executive attention intervention.No significant difference in P2 was found between the two groups in analogical reasoning or perception but the experimental group showed a larger late positive component than the active control group in analogical reasoning.We also found that the late positive component mediated the relationship between the N2 of anti-saccade trials and analogical reasoning reaction times in the experimental group.We further discussed the role of executive attention in the analogical reasoning process,which may pave the way for the future reliable improvement of fluid intelligence.
基金This work was supported by The National Natural Science Foundation of China(No.61402537)Sichuan Science and Technology Program(Nos.2019ZDZX0006,2020YFQ0056)+1 种基金the West Light Foundation of Chinese Academy of Sciences(201899)the Talents by Sichuan provincial Party Committee Organization Department,and Science and Technology Service Network Initiative(KFJ-STS-QYZD-2021-21-001).
文摘At present,deep learning has been well applied in many fields.However,due to the high complexity of hypothesis space,numerous training samples are usually required to ensure the reliability of minimizing experience risk.Therefore,training a classifier with a small number of training examples is a challenging task.From a biological point of view,based on the assumption that rich prior knowledge and analogical association should enable human beings to quickly distinguish novel things from a few or even one example,we proposed a dynamic analogical association algorithm to make the model use only a few labeled samples for classification.To be specific,the algorithm search for knowledge structures similar to existing tasks in prior knowledge based on manifold matching,and combine sampling distributions to generate offsets instead of two sample points,thereby ensuring high confidence and significant contribution to the classification.The comparative results on two common benchmark datasets substantiate the superiority of the proposed method compared to existing data generation approaches for few-shot learning,and the effectiveness of the algorithm has been proved through ablation experiments.
文摘As a method of logical thinking,analogical inference has a long history both in ancient Greece and in the ancient East,and has been widely used in the daily life.Even today it still plays an important role in understanding and improving the world.Particularly,its cognitive function is not only reflected in the interpretation and further understanding of the existing knowledge,but more importantly,it can still improve our scientific level,expand our cognitive field,and help us open up the unknown field.That,of course,is where its innovation lies.From the perspective of analogical inference,its innovative function should be based on the identical or at least the similar relationship between the things.In addition,it should also be based on the ability of imagination played by the cognition subject.
基金Project supported by the National Natural Science Foundation of China and Key Project of Fundamental Research, Climbing Program of China.
文摘A computational model of analogical reasoning is presented, which divides analogical reasoning process into four subprocesses, i.e. reminding, elaboration, matching and transfer. For each subprocess, its role and the principles it follows are given. The model is discussed in detail, including salient feature-based reminding, relevance-directed elaboration, an improved matching model and a transfer model. And the advantages of this model are summarized based on the results of BHARS, which is an analogical reasoning system implemented by this model.
文摘This paper describes some experiments of analogical learning and automated rule construction.The present investigation focuses on knowledge acquisition,learning by analogy,and knowledge retention. The developed system initially learns from scratch,gradually acquires knowledge from,its environment through trial-and-error interaction,incrementally augments its knowledge base,and analogically solves new tasks in a more efficient and direct manner.
基金supported by the National Natural Science Foundation of China (52172227)the Natural Science Foundation of Hubei Province (2023AFA114)+2 种基金the Guizhou Provincial Key Technology R&D Program (ZD[2025]019)provided by the Startup Fund (20QD80 and 22QD28)support from the Science&Technology Top Talents Program of Guizhou Province ([2024]349)
文摘Prussian blue analogs(PBAs)have emerged as environmentally friendly and structurally tunable cathode materials for aqueous ammonium-ion batteries(AIBs).However,the fundamental role of crystalline H_(2)O in regulating ammonium-ion storage and transport remains poorly understood.In this study,we present a comprehensive comparison between hydrated NH_(4)NiHCF-H_(2)O and its anhydrous counterpart NH_(4)NiHCF,revealing the critical contribution of interstitial water to electrochemical performance.Structural and spectroscopic analyses confirm that interstitial water forms robust hydrogen bonds with NH_(4)+ions,stabilizing the PBA framework and mitigating structural degradation during cycling.Electrochemical measurements show that NH_(4)NiHCF-H_(2)O delivers a significantly higher specific capacity of 61 mA h g^(−1)at 0.2 C and markedly improved rate performance compared to NH_(4)NiHCF(48 mA h g^(−1)at 0.2 C).Kinetic analysis reveals that interstitial water enhances NH_(4)+diffusion,as evidenced by higher diffusion coefficients.Furthermore,density functional theory(DFT)calculations demonstrate that crystal water acts as a hydrogen bond acceptor,preferentially interacting with NH_(4)+and reducing the migration energy barrier,thereby facilitating fast ion transport.This work provides fundamental insights into the role of crystal water in PBAs and offers a rational design strategy for improving the kinetics,structural stability of PBAs cathodes for AIBs.
文摘Objective:To explore the application effect of digital intraoral scanning impression technique in oral implant restoration for periodontitis patients and analyze its impact on patients’Visual Analogue Scale(VAS)scores.Methods:A total of 80 periodontitis patients who received implant restoration in our hospital from May 2023 to May 2025 were selected as research subjects.They were randomly divided into an observation group and a control group using a random number table method,with 40 cases in each group.The observation group used the digital intraoral scanning impression technique to obtain impressions,while the control group used the traditional silicone rubber impression technique.The impression-taking time,the number of prostheses try-ins,implant survival rate,periodontal health indicators(probing depth,gingival index,bleeding index),and VAS scores(pain during treatment and comfort after restoration)were compared between the two groups.Results:The observation group was superior to the control group in terms of impression-taking time,the number of prostheses try-ins,and implant survival rate(p<0.05).Six months after restoration,the improvement in periodontal health indicators in the observation group was significantly better than that in the control group(p<0.05).In addition,the pain VAS score of the observation group during treatment was lower than that of the control group,and the comfort VAS score after restoration was higher than that of the control group(p<0.05).Conclusion:Digital intraoral scanning impression technology can effectively enhance the efficiency and success rate of implant restoration in periodontitis patients,improve periodontal health,alleviate patients’discomfort during treatment,and increase post-restoration comfort,demonstrating high clinical application value.
文摘As technologies advance and replace human labor in a variety of settings,we focus our attention on human creativity for generating new ideas.Business organizations,more than ever,recognize that they need employees who think creatively to maintain their competitive edge.Nonetheless,there is a lack of research assessing new ideas and influential factors in generating innovative ideas.The aim of this study is to identify the factors that influence the creation of innovative ideas.We conducted two different types of workshops with 22 subjects and 23 subjects each.In the first workshop,subjects were asked to generate new business ideas through analogical thinking.As a result,half of the participants generated appropriate ideas,and three influential factors were determined:categorization skill,deliberation,and trial and error.The second workshop was designed to facilitate participants to enhance these three factors.As a result,70%of the participants could generate appropriate ideas.By identifying influential factors,this paper suggests a procedure for designing an innovationworkshop that enables the creation of appropriate ideas.
基金supported by the National Natural Science Foundation of China(No.52072217)the National Key Research and Development Program of China(No.2022YFB3807700)+2 种基金the Joint Funds of the Hubei Natural Science Foundation Innovation and Development(No.2022CFD034)Hubei Natural Science Foundation Innovation Group Project(No.2022CFA020)the Major Technological Innovation Project of Hubei Science and Technology Department(No.2019AAA164).
文摘With the rapid development of new energy and the high proportion of new energy connected to the grid,energy storage has become the leading technology driving significant adjustments in the global energy landscape.Electrochemical energy storage,as the most popular and promising energy storage method,has received extensive attention.Currently,the most widely used energy storage method is metal-ion secondary batteries,whose performance mainly depends on the cathode material.Prussian blue analogues(PBAs)have a unique open framework structures that allow quick and reversible insertion/extraction of metal ions such as Na^(+),K^(+),Zn^(2+),Li^(+)etc.,thus attracting widespread attention.The advantages of simple synthesis process,abundant resources,and low cost also distinguish it from its counterparts.Unfortunately,the crystal water and structural defects in the PBAs lattice that is generated during the synthesis process,as well as the low Na content,significantly affect their electrochemical performance.This paper focuses on PBAs’synthesis methods,crystal structure,modification strategies,and their potential applications as cathode materials for various metal ion secondary batteries and looks forward to their future development direction.
基金supported by the National Natural Science Foundation of China(52071083,52231007,12327804,52471224)Zhuhai Fudan Innovation Institute,and the Science and Technology Commission of Shanghai Municipality(23ZR1405000).
文摘By the random distribution of metals in a single phase,entropy engineering is applied to construct dense neighboring active centers with diverse electronic and geometric structures,realizing the continuous optimization of multiple primary reactions for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER).Many catalysts developed through entropy engineering have been built in nearly equimolar ratios to pursue high entropy,hindering the identification of the active sites and potentially diluting the concentration of real active sites while weakening their electronic interactions with reaction intermediates.Herein,this work proposes an entropy-engineering strategy in metal nanoparticle-embedded nitrogen carbon electrocatalysts,implemented by entropy-engineered Prussian blue analogs(PBA)as precursors to enhance the catalytic activity of primary Cu-Fe active sites.Through the introduction of the micro-strains driven by entropy engineering,density functional theory(DFT)calculations and geometric phase analysis(GPA)using Lorentz electron microscopy further elucidate the optimization of the adsorption/desorption of intermediates.Furthermore,the multi-dimensional morphology and the size diminishment of the nanocrystals serve to expand the electrochemical area,maximizing the catalytic activity for both ORR and OER.Notably,the Zn-air battery assembled with CuFeCoNiZn-NC operated for over 1300 h with negligible decay.This work presents a paradigm for the design of low-cost electrocatalysts with entropy engineering for multi-step reactions.
基金supported by the National Natural Science Foundation of China(Grant Nos.62405250 and 62471404)the China Postdoctoral Science Foundation(Grant No.2024M762955)+1 种基金the Key Project of Westlake Institute for Optoelectronics(Grant No.2023GD003)the Optical Com-munication and Sensing Laboratory,School of Engineering,Westlake University.
文摘Propelled by the rise of artificial intelligence,cloud services,and data center applications,next-generation,low-power,local-oscillator-less,digital signal processing(DSP)-free,and short-reach coherent optical communication has evolved into an increasingly prominent area of research in recent years.Here,we demonstrate DSP-free coherent optical transmission by analog signal processing in frequency synchronous optical network(FSON)architecture,which supports polarization multiplexing and higher-order modulation formats.The FSON architecture that allows the numerous laser sources of optical transceivers within a data center can be quasi-synchronized by means of a tree-distributed homology architecture.In conjunction with our proposed pilot-tone assisted Costas loop for an analog coherent receiver,we achieve a record dual-polarization 224-Gb/s 16-QAM 5-km mismatch transmission with reset-free carrier phase recovery in the optical domain.Our proposed DSP-free analog coherent detection system based on the FSON makes it a promising solution for next-generation,low-power,and high-capacity coherent data center interconnects.
文摘The application of legal texts in the context of digital television is a process that relies on several normative instruments,ranging from international treaties,such as those of the ITU(International Telecommunications Union),to national regulations defining the obligations of audiovisual operators and the modalities of consumer support.Many countries have introduced specific laws and regulations to organize the gradual switch-off of analog broadcasting and encourage the adoption of new digital standards.Consequently,the digitization of Guinea’s broadcasting network cannot be carried out without taking into account the legal framework:allocation of resources and broadcasting players.Analog and digital broadcasting,according to regulatory texts,shows the relationships between the different communication management structures.As for digital broadcasting,we note the appearance of a new service,multiplex.
基金supported by the Key Reasearch and Development Program of Zhejiang(2022C01029)the National Natural Science Foundation of China(22225802 and 22288102)the Research Funds of Institute of Zhejiang University-Quzhou(IZQ2022KJ3005).
文摘The removal of cesium-137(^(137)Cs)from nuclear wastewater remains crucial due to its radioactivity and high solubility in water,which pose serious risk to human health and the environment.Aiming at selective capture of Cs^(+) from wastewater,a core-shell adsorbent,Prussian blue analog@y-alumina(PBA@Al_(2)O_(3))pellets were synthesized using the hydrothermal-stepwise deposition method.The coreshell PBA@Al_(2)O_(3)pellets showcased a PBA loading of 25%and demonstrated a maximum adsorption capacity of 15.65 mg·g^(-1).The adsorption data was consistent with the pseudo-second-order kinetic model and the Langmuir isotherm model.It effectively reduced bulk Cs^(+) concentrations from an initial 6.62 mg·L^(-1)to 2 μg·L^(-1),achieving a removal efficiency of 99.97%and distribution coefficient(Kd)of 1.265×10^(6)ml·g^(-1),surpassing the performance of other PBA-based materials.The material also indicated good mechanical properties and cesium ion removal rates of 99.7%across a wide pH range(1.82 to 11.12).Furthermore,PBA@Al_(2)O_(3)exhibited consistent removal rate of over 99%and good selectivity(SF=50-1600)towards Cs^(+) even in the presence of interfering ions such as Na^(+),K^(+),Mg^(2+),and Ca^(2+)ions.The Kd(Cs^(+))for PBA@Al2O3 in simulated seawater and groundwater were 9.92×10^(3)and 2.23×10^(4)ml·g^(-1),where the removal rates reached 96.1%and 98.2%,respectively.XPS confirms that the adsorption mechanism is the ion exchange between Cs^(+) and K^(+)ions.This study underscores the significant potential of inorganic core-shell pellets adsorbents as promising agents for the selective capture of Cs^(+) from wastewater.
基金Supported by Foshan City Self-Raised Funds Science and Technology Innovation Project,No.2320001007369.
文摘BACKGROUND Currently,colonoscopy still needs continuous optimization and exploration of novel alternative approaches to enhance the experience of patients during co-lonoscopy.AIM To analyze the efficacy of water infusion combined with defoamers in colono-scopy.METHODS This study included 97 patients undergoing colonoscopy from January 2024 to June 2024.The participants were categorized into two groups,namely,the control group(n=47),who underwent conventional colonoscopy,and the experimental group(n=50),who received colonoscopy using water injection combined with defoamers.A comparative analysis was then conducted on the disease detection rate(colonic polyps,colonorrhagia,colonic ulcers,colonic mucosal lesions,and others),colonoscopy duration,abdominal pain[visual analog scale(VAS)],Boston bowel preparation scale(BBPS),self-rating anxiety scale(SAS),bowel preparation comfort,complications(intestinal perforation,bleeding,nausea and vomiting,abdominal pain,and abdominal distension),and patient satisfaction.RESULTS The experimental group demonstrated a significantly higher total disease detection rate,BBPS scores,and patient satisfaction compared with the control group.Further,the research group exhibited shorter colonoscopy duration,lower VAS and SAS scores and total complication rate,and better patient comfort and satisfaction.CONCLUSION These results indicate that the combination of water injection and defoamers exhibited an overall better therapeutic effect than conventional colonoscopy,mainly reflected in higher disease detection rate,faster examination ef-ficiency,lower abdominal pain,anxiety,and complication incidences,and significantly better bowel preparation,comfort,and patient satisfaction.
基金supported by the National Natural Science Foundation of China(Grants No.62221002,Grants No.12174097).
文摘Phase reconstruction plays a pivotal role in biology, medical imaging, and wavefront sensing. However, multiple measurements and adjustments are usually required for conventional schemes, which inevitably reduces the quality of phase imaging. Here, based on multi-channel metasurface and quantum entanglement source, a simple and integrated quantum analog operation system is proposed to realize quantitative phase reconstruction with a high signal-to-noise ratio (SNR) under a low signal photon level. Without additional measurements and adjustments, four differential images necessary for the phase reconstruction are captured simultaneously. The non-local correlation of entangled photon pairs enables to remotely manipulate working modes of the system. Besides, the consistency of entangled photon pairs in time domain makes it possible to achieve a high SNR imaging by trigger detection. The results may potentially empower the application of metasurfaces in optical chip, wave function reconstruction, and label-free biology imaging.
基金supported in part by the National Natural Science Foundation of China under Grant 62071094in part by the National Key Laboratory of Wireless Communications Foundation under Grant IFN202402in part by the Postdoctoral Fellowship Program(Grade C)of China Postdoctoral Science Foundation under Grant GZC20240217.
文摘To enable simultaneous transmit and receive(STAR)on the same frequency in a densely deployed space with multi-interference sources,this work proposes a digitally-assisted analog selfinterference cancellation method,which can acquire reference signals through flexible wired/wireless switching access.Based on this method,the Minimum Mean Square Error algorithm with known channel state information is derived in detail,determining the upper limit of the cancellation performance,and the Adaptive Dithered Linear Search algorithm for real-time engineering cancellation is given.The correctness of theoretical analysis is verified by the practical self-interference channel measured by a vector network analyzer.Furthermore,we have designed and implemented the corresponding multiinterference cancellation prototype with the digitallyassisted structure,capable of handling multiple interferences(up to three)and supporting a large receive bandwidth of 100 MHz as well as a wide frequency coverage from 30 MHz to 3000 MHz.Prototype test results demonstrate that in the presence of three interferences,when the single interference bandwidth is 0.2/2/20 MHz(corresponding to the receive bandwidth of 2/20/100 MHz),the cancellation performance can reach 46/32/22 dB or more.
基金Education Reform Research Project of Hainan Tropical Ocean University(RHYjg2025-10)Key Research and Development Projects of Hainan Province,China(ZDYF2024GXJS303)。
文摘This paper focuses on the problems existing in the teaching of analog electronic technology courses,and puts forward the teaching reform idea of combining marine knowledge with the course content.Based on the BOPPPS teaching model,specific teaching links are designed,and the teaching practice is carried out as an example of a low-power,high-precision microprocessor development project.The practical results show that the teaching reform improves students’learning interest and participation,cultivates students’engineering practice and innovation abilities,and provides a useful reference for the teaching reform of related courses.
