The molten salt method focuses on improving the crystallinity of synthetic materials and avoiding the high energy consumption of traditional synthesis processes.In this work,a novel BiOBr/Bi_(2)S_(3)high-low junction ...The molten salt method focuses on improving the crystallinity of synthetic materials and avoiding the high energy consumption of traditional synthesis processes.In this work,a novel BiOBr/Bi_(2)S_(3)high-low junction with large contact area was constructed by the molten salt method combined with the ion exchange strategy.Its unique energy band structure and new charge transfer mechanism realize the rapid migration of photogenerated charges between different components.Specifically,Bi_(2)S_(3)was grown on BiOBr in situ by a high-temperature molten salt reaction.Due to the deep valence band position of BiOBr and the narrow band gap of Bi_(2)S_(3),an intrinsic internal electric field and band bending are produced at the interface,forming a high-low junction photocatalyst with an intimate interface.In addition,the BiOBr/Bi_(2)S_(3)composite maintains a high oxidation potential and produces high and robust photocatalytic oxidation activity.In the molten state,the close binding of BiOBr and Bi_(2)S_(3)can be promoted through the ion-exchange strategy,resulting in excellent photocatalytic degradation rates of bisphenol A and tetracycline and in-situ generation of H_(2)O_(2).Finally,the mechanism of carriers separation and transfer in BiOBr/Bi_(2)S_(3)high-low junction is also discussed.Density functional theory(DFT)results found that the improvement of O_(2)adsorption ability would promote the occurrence of oxygen reduction reaction(ORR),and make positive contributions to the enhanced H_(2)O_(2)production activity.This study will provide a new perspective for broadening the spectral response range of Bi-based photocatalytic materials and preparing high-low junction photocatalysts with dense interface by the molten salt method.展开更多
Lithium-sulfur(Li-S) batteries as extremely promising high-density energy storage devices have attracted extensive concern. However, practical applications of Li-S batteries are severely restricted by not only intrins...Lithium-sulfur(Li-S) batteries as extremely promising high-density energy storage devices have attracted extensive concern. However, practical applications of Li-S batteries are severely restricted by not only intrinsic polysulfides shuttle resulting from their concentration gradient diffusion and sluggish conversion kinetics but also serious safety issue caused by thermolabile and combustible polymer separators.Herein, it is presented for the first time that a robust and multifunctional separator with urchin-like Co-doped Fe OOH microspheres and multiwalled carbon nanotubes(MWCNTs) as an interlayer simultaneously achieves to suppress polysulfides shuttle as well as improves thermotolerance and nonflammability of commercial PP separator. Accordingly, Li-S batteries with modified separator exhibit remarkable performance in a wide range temperatures of-25–100 ℃. Typically, under 25 ℃, ultrahigh initial capacities of 1441 and 827.29 m A h g-1 at 1 C and 2 C are delivered, and remained capacities of 936 and 663.18 mA h g-1 can be obtained after 500 cycles, respectively. At 0.1 C, the S utilization can reach up to 97%. Significantly, at 1 C, the batteries also deliver an excellent performance with remained capacities of high to862.3, 608.4 and 420.6 m A h g-1 after 100, 300 and 450 cycles under 75, 0 and-25 ℃, respectively. This work provides a new insight for developing stable and safe high-performance Li-S batteries.展开更多
A high-efficiency mode of high-low seedbed cultivation(HLSC)has been listed as the main agricultural technology to increase land utilization ratio and grain yield in Shandong Province,China.However,limited information...A high-efficiency mode of high-low seedbed cultivation(HLSC)has been listed as the main agricultural technology to increase land utilization ratio and grain yield in Shandong Province,China.However,limited information is available on the optimized water and nitrogen management for yield formation,especially the grain-filling process,under HLSC mode.A three-year field experiment with four nitrogen rates and three irrigation rates of HLSC was conducted to reveal the response of grain-filling parameters,grain weight percentage of spike weight(GPS),spike moisture content(SMC),and winter wheat yield to water and nitrogen rates.The four nitrogen rates were N1(360 kg ha^(-1) pure N),N2(300 kg ha^(-1) pure N),N3(240 kg ha^(-1) pure N),and N4(180 kg ha^(-1) pure N),respectively,and the three irrigation quotas were W1(120 mm),W2(90 mm),and W3(60 mm),respectively.Results showed that the determinate growth function generally performed well in simulating the temporal dynamics of grain weight(0.989<R^(2)<0.999,where R2 is the determination coefficient).The occurrence time of maximum filling rate(T_(max))and active grain-filling period(AGP)increased with the increase in the water or nitrogen rate,whereas the average grain-filling rate(G_(mean))had a decreasing trend.The final 1,000-grain weight(FTGW)increased and then decreased with the increase in the nitrogen rates and increased with the increase in the irrigation rates.The GPS and SMC had a highly significant quadratic polynomial relationship with grain weight and days after anthesis.Nitrogen,irrigation,and year significantly affected the T_(max),AGP,G_(mean),and FTGW.Particularly,the AGP and FTGW were insignificantly different between high seedbed(HLSC-H)and low seedbed(HLSC-L)across the water and nitrogen levels.Moreover,the moderate water and nitrogen supply was more beneficial for grain yield,as well as for spike number and grain number per hectare.The principal component analysis indicated that combining 240-300 kg N ha^(-1) and 90^(-1)20 mm irrigation quota could improve grain-filling efficiency and yield for the HLSC-cultivated winter wheat.展开更多
Objective When English-speaking people listen to the Deutsch"high-low"word illusion,they report hearing English words.Whether Chinese-speaking people report Chinese words when listening to the illusion,or wh...Objective When English-speaking people listen to the Deutsch"high-low"word illusion,they report hearing English words.Whether Chinese-speaking people report Chinese words when listening to the illusion,or whether any reported words might be correlated with personality traits as previous investigations have demonstrated for listening to music in other cultures,is open to question.The present study aimed to address this.Methods A total of 308 right-handed,healthy volunteers(177 women and 131 men)were given the illusion test and asked to answer the Zuckerman-Kuhlman personality questionnaire(ZKPQ).Their depressive tendency was measured by the Plutchik-van Praag depression inventory(PVP).Results There was no gender effect regarding either the PVP score or the number of reported Chinese words from the illusion.Women scored higher on ZKPQ neuroticism-anxiety than men.The number of meaningful Chinese words reported was correlated with the ZKPQ impulsive sensation-seeking,aggression-hostility,and activity scores.Some words reported by participants who scored higher on these three traits were related in meaning to those scales.Conclusion Our preliminary results suggest that when Chinese-speaking people listen to the Deutsch"high-low"word illusion,they might use personality-related,specific cognitive schemata.展开更多
By using the routine observation data,a heavy precipitation process which happened in Guangxi on May 27,2006 was analyzed.The results that this heavy precipitation occurred in the common coordination weather system wh...By using the routine observation data,a heavy precipitation process which happened in Guangxi on May 27,2006 was analyzed.The results that this heavy precipitation occurred in the common coordination weather system which included the high-altitude trough,the shear line and the ground cold front.The ascent branch of subtropical longitude circle circulation and the polar front jet stream longitude circle circulation had the important role for the formation of rainstorm area.The coupling effect of southerly jet,low-altitude westerly jet and high-altitude westerly jet in the boundary layer was the important reason of rainstorm occurrence.展开更多
The Wedding Banquet is a movie about a gay Taiwan Residents immigrant man who marries a mainland Chinese woman to placate his parents and get her a green card. His plan backfires and things get out of hand when his pa...The Wedding Banquet is a movie about a gay Taiwan Residents immigrant man who marries a mainland Chinese woman to placate his parents and get her a green card. His plan backfires and things get out of hand when his parents arrive in the United States to plan his wedding banquet. Based on Hall's theory of high-context and low-context culture, this paper analyzes the cultural conflicts in the movie from six perspectives, and offers suggestions to the harmonious development of China and America. It is hoped that the paper can help readers get an in-depth comprehension of Hall's theory of high-context and low-context culture and discover some invisible conflicts between China and the West and finally raise people's consciousness of cultural conflicts and ways of handling the conflicts. With the advancement of globalization, intercultural communicative competence is becoming more and more important, and social communication between China and the West will become more relaxed and fruitful if people acquire more knowledge in intercultural communication.展开更多
The concept of high-low context was firstly put forward by an American anthropologist Edward Hall in 1976. Hereafter, more and more social scientists come to realize the importance of this concept on the thorough unde...The concept of high-low context was firstly put forward by an American anthropologist Edward Hall in 1976. Hereafter, more and more social scientists come to realize the importance of this concept on the thorough understanding of the crossculture discrepancy. This article compares the difference between Chinese(representative of high- context culture) and English(representative of low-context culture) in terms of verbal communication patterns. In addition to a discussion of students' common difficulties and inappropriate habits in writing resulting from their mother- tongue and Chinese thinking- mode, it offers some constructive suggestions for students concerning their instruction of writing and aims to achieve good results in the English writing test. It's proved that degradation treatment is necessary and effective in English-writing by using some direct, concrete and vivid words to achieve the effect of veracity and proper statement.展开更多
Photocatalytic technology holds significant promise for addressing global energy and environmental challenges.The emergence of the high-low junction represents a pivotal breakthrough in this field.This review comprehe...Photocatalytic technology holds significant promise for addressing global energy and environmental challenges.The emergence of the high-low junction represents a pivotal breakthrough in this field.This review comprehensively examines the concept,mechanism,fabrication strategies,diverse photocatalytic applications,and advanced characterization techniques of high-low junctions.Derived from S-scheme heterojunction and p-n junction principles and optimized beyond conventional type-Ⅰheterojunctions,high-low junctions enable efficient separation/migration of photogenerated carriers while retaining highly redox-capable species,thereby significantly enhancing photocatalytic performance.We focus on key fabrication strategies and elucidate their respective advantages and limitations in constructing heterojunctions with tailored energy band structures.The review further highlights the exceptional performance of these junctions in multiple aspects of applications.By systematically categorizing advanced characterization and theoretical simulation techniques according to their functionalities,this review provides multi-scale analysis of interfacial charge dynamics and atomic-level mechanistic insights.These insights offer crucial guiding principles for material design and photocatalytic mechanism interpretation.Finally,we discuss emerging research frontiers centered on interface engineering,advanced characterization,and machine learning-guided discovery to address persistent challenges in carrier recombination and stability optimization.It is expected that this comprehensive analysis will provide a foundational reference and inspire future innovations in high-low junction photocatalysts with novel charge transfer mechanisms.展开更多
基金financially supported by the National Natural Science Foundation of China(Nos.22262024,51962023,52272063 and 51978324)the Zhejiang Province Key Research and Development Project(2023 C01191)the Double Thousand Talent Plan of Jiangxi Province,the Jiangxi Academic and Technical Leader of Major Disciplines(No.20213BCJL22053).
文摘The molten salt method focuses on improving the crystallinity of synthetic materials and avoiding the high energy consumption of traditional synthesis processes.In this work,a novel BiOBr/Bi_(2)S_(3)high-low junction with large contact area was constructed by the molten salt method combined with the ion exchange strategy.Its unique energy band structure and new charge transfer mechanism realize the rapid migration of photogenerated charges between different components.Specifically,Bi_(2)S_(3)was grown on BiOBr in situ by a high-temperature molten salt reaction.Due to the deep valence band position of BiOBr and the narrow band gap of Bi_(2)S_(3),an intrinsic internal electric field and band bending are produced at the interface,forming a high-low junction photocatalyst with an intimate interface.In addition,the BiOBr/Bi_(2)S_(3)composite maintains a high oxidation potential and produces high and robust photocatalytic oxidation activity.In the molten state,the close binding of BiOBr and Bi_(2)S_(3)can be promoted through the ion-exchange strategy,resulting in excellent photocatalytic degradation rates of bisphenol A and tetracycline and in-situ generation of H_(2)O_(2).Finally,the mechanism of carriers separation and transfer in BiOBr/Bi_(2)S_(3)high-low junction is also discussed.Density functional theory(DFT)results found that the improvement of O_(2)adsorption ability would promote the occurrence of oxygen reduction reaction(ORR),and make positive contributions to the enhanced H_(2)O_(2)production activity.This study will provide a new perspective for broadening the spectral response range of Bi-based photocatalytic materials and preparing high-low junction photocatalysts with dense interface by the molten salt method.
基金the National Natural Science Foundation of China(51773134)the Program for the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(51721091)+2 种基金the Sichuan Province Science and Technology Project(2019YFH0112)the Sichuan Province Youth Science and Technology Innovation Team(2017TD0006)the Fundamental Research Funds for the Central Universities(2017SCU04A14 and YJ201821)。
文摘Lithium-sulfur(Li-S) batteries as extremely promising high-density energy storage devices have attracted extensive concern. However, practical applications of Li-S batteries are severely restricted by not only intrinsic polysulfides shuttle resulting from their concentration gradient diffusion and sluggish conversion kinetics but also serious safety issue caused by thermolabile and combustible polymer separators.Herein, it is presented for the first time that a robust and multifunctional separator with urchin-like Co-doped Fe OOH microspheres and multiwalled carbon nanotubes(MWCNTs) as an interlayer simultaneously achieves to suppress polysulfides shuttle as well as improves thermotolerance and nonflammability of commercial PP separator. Accordingly, Li-S batteries with modified separator exhibit remarkable performance in a wide range temperatures of-25–100 ℃. Typically, under 25 ℃, ultrahigh initial capacities of 1441 and 827.29 m A h g-1 at 1 C and 2 C are delivered, and remained capacities of 936 and 663.18 mA h g-1 can be obtained after 500 cycles, respectively. At 0.1 C, the S utilization can reach up to 97%. Significantly, at 1 C, the batteries also deliver an excellent performance with remained capacities of high to862.3, 608.4 and 420.6 m A h g-1 after 100, 300 and 450 cycles under 75, 0 and-25 ℃, respectively. This work provides a new insight for developing stable and safe high-performance Li-S batteries.
基金supported by the National Key Research and Development Program of China(2023YFD1900802)the China Agriculture Research System of MOF and MARA(CARS-03-19)+2 种基金the National Natural Science Foundation of China(51879267)the Central Public-interest Scientific Institution Basal Research Fund,China(IFI2023-13)the Agricultural Science and Technology Innovation Program(ASTIP),Chinese Academy of Agricultural Sciences。
文摘A high-efficiency mode of high-low seedbed cultivation(HLSC)has been listed as the main agricultural technology to increase land utilization ratio and grain yield in Shandong Province,China.However,limited information is available on the optimized water and nitrogen management for yield formation,especially the grain-filling process,under HLSC mode.A three-year field experiment with four nitrogen rates and three irrigation rates of HLSC was conducted to reveal the response of grain-filling parameters,grain weight percentage of spike weight(GPS),spike moisture content(SMC),and winter wheat yield to water and nitrogen rates.The four nitrogen rates were N1(360 kg ha^(-1) pure N),N2(300 kg ha^(-1) pure N),N3(240 kg ha^(-1) pure N),and N4(180 kg ha^(-1) pure N),respectively,and the three irrigation quotas were W1(120 mm),W2(90 mm),and W3(60 mm),respectively.Results showed that the determinate growth function generally performed well in simulating the temporal dynamics of grain weight(0.989<R^(2)<0.999,where R2 is the determination coefficient).The occurrence time of maximum filling rate(T_(max))and active grain-filling period(AGP)increased with the increase in the water or nitrogen rate,whereas the average grain-filling rate(G_(mean))had a decreasing trend.The final 1,000-grain weight(FTGW)increased and then decreased with the increase in the nitrogen rates and increased with the increase in the irrigation rates.The GPS and SMC had a highly significant quadratic polynomial relationship with grain weight and days after anthesis.Nitrogen,irrigation,and year significantly affected the T_(max),AGP,G_(mean),and FTGW.Particularly,the AGP and FTGW were insignificantly different between high seedbed(HLSC-H)and low seedbed(HLSC-L)across the water and nitrogen levels.Moreover,the moderate water and nitrogen supply was more beneficial for grain yield,as well as for spike number and grain number per hectare.The principal component analysis indicated that combining 240-300 kg N ha^(-1) and 90^(-1)20 mm irrigation quota could improve grain-filling efficiency and yield for the HLSC-cultivated winter wheat.
基金supported by grants from the National Natural Science Foundation of China(30971042)the Innovative Research Team for Translational Neuropsychiatric Medicine,Zhejiang Province(2011R50049)the Program for Changjiang Scholars and Innovative Research Team in University,Chinese Ministry of Education(IRT1038)
文摘Objective When English-speaking people listen to the Deutsch"high-low"word illusion,they report hearing English words.Whether Chinese-speaking people report Chinese words when listening to the illusion,or whether any reported words might be correlated with personality traits as previous investigations have demonstrated for listening to music in other cultures,is open to question.The present study aimed to address this.Methods A total of 308 right-handed,healthy volunteers(177 women and 131 men)were given the illusion test and asked to answer the Zuckerman-Kuhlman personality questionnaire(ZKPQ).Their depressive tendency was measured by the Plutchik-van Praag depression inventory(PVP).Results There was no gender effect regarding either the PVP score or the number of reported Chinese words from the illusion.Women scored higher on ZKPQ neuroticism-anxiety than men.The number of meaningful Chinese words reported was correlated with the ZKPQ impulsive sensation-seeking,aggression-hostility,and activity scores.Some words reported by participants who scored higher on these three traits were related in meaning to those scales.Conclusion Our preliminary results suggest that when Chinese-speaking people listen to the Deutsch"high-low"word illusion,they might use personality-related,specific cognitive schemata.
基金Supported by The Forecaster Special Project of New Technology Spreading Scheme of China Meteorological Administration(CMATG2008Y07)The Brainstorm Project of Guangxi Science and Technology Department(Guangxi Science and Technology Brainstorm Project 0993002-1 and 0816006-9)
文摘By using the routine observation data,a heavy precipitation process which happened in Guangxi on May 27,2006 was analyzed.The results that this heavy precipitation occurred in the common coordination weather system which included the high-altitude trough,the shear line and the ground cold front.The ascent branch of subtropical longitude circle circulation and the polar front jet stream longitude circle circulation had the important role for the formation of rainstorm area.The coupling effect of southerly jet,low-altitude westerly jet and high-altitude westerly jet in the boundary layer was the important reason of rainstorm occurrence.
文摘The Wedding Banquet is a movie about a gay Taiwan Residents immigrant man who marries a mainland Chinese woman to placate his parents and get her a green card. His plan backfires and things get out of hand when his parents arrive in the United States to plan his wedding banquet. Based on Hall's theory of high-context and low-context culture, this paper analyzes the cultural conflicts in the movie from six perspectives, and offers suggestions to the harmonious development of China and America. It is hoped that the paper can help readers get an in-depth comprehension of Hall's theory of high-context and low-context culture and discover some invisible conflicts between China and the West and finally raise people's consciousness of cultural conflicts and ways of handling the conflicts. With the advancement of globalization, intercultural communicative competence is becoming more and more important, and social communication between China and the West will become more relaxed and fruitful if people acquire more knowledge in intercultural communication.
文摘The concept of high-low context was firstly put forward by an American anthropologist Edward Hall in 1976. Hereafter, more and more social scientists come to realize the importance of this concept on the thorough understanding of the crossculture discrepancy. This article compares the difference between Chinese(representative of high- context culture) and English(representative of low-context culture) in terms of verbal communication patterns. In addition to a discussion of students' common difficulties and inappropriate habits in writing resulting from their mother- tongue and Chinese thinking- mode, it offers some constructive suggestions for students concerning their instruction of writing and aims to achieve good results in the English writing test. It's proved that degradation treatment is necessary and effective in English-writing by using some direct, concrete and vivid words to achieve the effect of veracity and proper statement.
基金supported by the National Natural Science Foundation of China(Grant Nos.22262024,52470078)the Jiangxi Province Academic and Technical Leader of Major Disciplines(Grant No.20232BCJ22008)+2 种基金the Key Project of Natural Science Foundation of Jiangxi Province(Grant No.20232ACB204007)the Double Thousand Talent Plan of Jiangxi Provincethe Natural Science Foundation of Jiangxi Province(Grant No.2022ACB203014)。
文摘Photocatalytic technology holds significant promise for addressing global energy and environmental challenges.The emergence of the high-low junction represents a pivotal breakthrough in this field.This review comprehensively examines the concept,mechanism,fabrication strategies,diverse photocatalytic applications,and advanced characterization techniques of high-low junctions.Derived from S-scheme heterojunction and p-n junction principles and optimized beyond conventional type-Ⅰheterojunctions,high-low junctions enable efficient separation/migration of photogenerated carriers while retaining highly redox-capable species,thereby significantly enhancing photocatalytic performance.We focus on key fabrication strategies and elucidate their respective advantages and limitations in constructing heterojunctions with tailored energy band structures.The review further highlights the exceptional performance of these junctions in multiple aspects of applications.By systematically categorizing advanced characterization and theoretical simulation techniques according to their functionalities,this review provides multi-scale analysis of interfacial charge dynamics and atomic-level mechanistic insights.These insights offer crucial guiding principles for material design and photocatalytic mechanism interpretation.Finally,we discuss emerging research frontiers centered on interface engineering,advanced characterization,and machine learning-guided discovery to address persistent challenges in carrier recombination and stability optimization.It is expected that this comprehensive analysis will provide a foundational reference and inspire future innovations in high-low junction photocatalysts with novel charge transfer mechanisms.
