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Advancing the industrial production of propylene oxide toward inherent safety and environmental sustainability:A mini review 认领 引用
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作者 Hanlin Jin Yupeng Tian +5 位作者 Yujia Liu Chenyang Zhao Yizhou Yang Ming Gong Xuejing Yang Bing Sun 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第6期259-267,共9页
Propylene oxide(PO)is an important chemical intermediate that has experienced a continuous rise in annual demand.Traditional processes such as the chlorohydrin process and hydrogen peroxidepropylene oxide process(HPPO... Propylene oxide(PO)is an important chemical intermediate that has experienced a continuous rise in annual demand.Traditional processes such as the chlorohydrin process and hydrogen peroxidepropylene oxide process(HPPO)are gradually being phased out due to environmental pollution,complex procedures,and economic inefficiencies.The discovery of the titanium silicalite-1 zeolite has markedly improved the activity and selectivity of the HPPO process,facilitating its industrial application.Nonetheless,the costs associated with the storage and transportation of H2O2,along with its safety risks during the process,continue to pose a limitation.This paper presents a comprehensive review of the current industrial status,risk analysis,and advancements in inherent safety research concerning the production of PO.The review systematically assesses the advantages and limitations of various production processes,focusing on safety,environmental impact,and lifecycle risk analysis.The gas-phase epoxidation of propylene and electrochemical epoxidation technology have become prominent research areas due to their mild reaction conditions,streamlined processes,and risk reduction at the source.These approaches provide new directions for inherently-safer PO production.Future efforts should prioritize addressing challenges in catalyst performance and process integration to propel the PO industry toward greater efficiency,safety,and sustainability. 展开更多
关键词 Propylene oxide Inherent safety Gas-phase epoxidation Microreactor Electro-oxidation
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Synergistic mechanism and product analysis of powder and combustible gas explosion——A comprehensive review 认领 引用
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作者 Yao Chen Zhichen Zhang +4 位作者 Yunfeng Zhu Bing Sun Chi-Min Shu Xiaogang Shi Wei Xu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第4期343-364,共22页
In the process of chemical production and mechanical manufacturing,powder usually appears as an associated organism.However,powder might explode while exposed to ignition sources,static electricity,and high-speed coll... In the process of chemical production and mechanical manufacturing,powder usually appears as an associated organism.However,powder might explode while exposed to ignition sources,static electricity,and high-speed collisions,which result in the release of immense energy and extremely destructive consequences.Powder explosions account for 21%of explosion accidents;therefore,it is of great significance to analyse the explosion mechanism of different types of powder,build the explosion model,and finally put forward a feasible method of forestalling explosion.This study provides a comprehensive review and perspectives for synergistic explosion mechanism of combustible gas and different types of powder,such as polyolefin powder,and coal powder.The synergistic explosion parameters of powder and combustible gas were summarised and a explosion simulation model was constructed.In addition,this paper focuses on the analysis and study of gas-liquid-solid products after the explosion to capture the powder explosion mechanism.Finally,the scheme and suggestion for dust explosion suppression are provided.This article explores the mechanism of powder explosion fundamentally and puts forward higher safety recommendations as well as explosion suppression measures,which provide a theoretical and guiding basis for modern industrialisation and mechanically safer chemical production. 展开更多
关键词 Powder explosion Synergistic explosion mechanism Explosion simulation model Dust explosion suppression Safer chemical production
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Study on the decomposition mechanism of supercritical ethylene during ultra-high pressure polymerization process 认领 引用
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作者 Yao Chen Zhichen Zhang +6 位作者 Yunfeng Zhu Haowen Chen Yifan Song Ruiyi Zhang Xiaogang Shi Bing Sun Wei Xu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第2期146-156,共11页
In the production of low density polyethylene(LDPE),the presence of oxygen may induce the decomposition of supercritical ethylene,thereby affecting the stability of equipment operation and potentially leading to safet... In the production of low density polyethylene(LDPE),the presence of oxygen may induce the decomposition of supercritical ethylene,thereby affecting the stability of equipment operation and potentially leading to safety hazards.This study investigated the inducing and promoting effects of oxygen on the runaway decomposition of supercritical ethylene.The reaction mechanism of oxygen-induced supercritical ethylene was explored through ReaxFF molecular dynamics simulation,and the reaction network was systematically constructed.It was found that the minimum oxygen concentration required to initiate ethylene decomposition at 240℃ and 240 MPa was 0.0042%(mass).The coupling of oxygen and ethylene to form the intermediate C2HxO·promoted the cleavage of the C-C bond in ethylene.Under the condition of oxygen absence,ethylene mainly underwent polymerization reactions.As the oxygen concentration increased,unstable intermediates such as C2HxO·were generated,and the dominant reaction pathway of ethylene shifted from polymerization to decomposition.This study provided a theoretical basis for understanding the oxygen induced supercritical ethylene decomposition in low density polyethylene process. 展开更多
关键词 Ethylene decomposition Ethylene polymerization Low density polyethylene ReaxFF molecular dynamics Decomposition mechanism
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Carrier and Phonon Engineering in Sb-Doped Sn0.8Mn0.1Pb0.1Te:A Pathway to Superior Thermoelectric Performance 认领 引用
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作者 Jun-Xiang Zhang Zhi-Hao Li +8 位作者 Qi-Dong Wang Zhen-Zhen Meng Ting-Ting Chen Tai-Chao Su Peng Cao Jian-Hong Hu Dong-Wei Ao Bing Sun Hong-An Ma 《Rare Metals》 SCIE EI CAS CSCD 2026年第2期585-594,共10页
SnTe is considered a potential alternative to PbTe for thermoelectric applications.However,excessive carrier concentration and thermal conductivity result in poor thermoelectric performance.Herein,p-type SnTe-based ma... SnTe is considered a potential alternative to PbTe for thermoelectric applications.However,excessive carrier concentration and thermal conductivity result in poor thermoelectric performance.Herein,p-type SnTe-based materials Sn0.8-xMn0.1Pb0.1SbxTe were synthesized,and the combined effects of Sb,Mn,and Pb were systematically investigated.Mn doping promotes band convergence,leading to a high Seebeck coefficient,whereas Pb doping enhances power factor and simultaneously reduces the total thermal conductivity.The doping of the Sb element reasonably regulates the carrier concentration,leading to an increase in the Seebeck coefficient and resulting in a sample with excellent electrical transport performance.Additionally,Sb incorporation induces the formation of point defects,edge dislocations,grain boundaries,and nanoprecipitates within the SnTe matrix,which significantly lowers the lattice thermal conductivity.The lattice thermal conductivity of the Sn0.71Mn0.1Pb0.1Sb0.09 Te alloy decreases to 1.06 W m-1K-1 at 323 K.The increase in resistivity leads to a decrease in electronic thermal conductivity,resulting in an extremely low total thermal conductivity of the sample.Therefore,a ZT value of~1.27 at 773 K is recorded for the Sn0.71Mn0.1Pb0.1Sb0.09 Te sample,which represents a 272%improvement over intrinsic SnTe.The remarkable enhancement unequivocally confirms that the optimized doping strategy effectively improves the alloy's thermoelectric performance. 展开更多
关键词 low thermal conductivity Sb-doping SnTe thermoelectric
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Crystalline@amorphous core-shell structure of WO3@WO3-xSx established via doping strategy for enhancing magnesium ions storage performance 认领 引用 被引量：1
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作者 Shiqi Ding Yuxin Tian +7 位作者 Jiankang Chen Guofeng Wang Bing Sun He Lv Lei Wang Guicun Li Alan Meng Zhenjiang Li 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2025年第3期1353-1363,共11页
Designing cathode possessing crystalline@amorphous core-shell structure with both active core and shell is a meaningful work for resolving the low specific capacity,unstable cycling performance and sluggish reaction ki... Designing cathode possessing crystalline@amorphous core-shell structure with both active core and shell is a meaningful work for resolving the low specific capacity,unstable cycling performance and sluggish reaction kinetics issues of rechargeable magnesium batteries(RMBs)by providing more active sites as well as releasing inner stress during cycling.Herein,WO3@WO3-xSx owning crystalline@amorphous core-shell structure containing both active core and active shell is constructed successfully by introducing S into metastable WO3 structure under temperaturefield applying.In such structure,amorphous shell would provide continuous Mg2+diffusion channels due to its isotropy property for most Mg2+migrating rapidly to interface and then adsorb at ions reservoir formed by interfacial electricfield for increasing specific capacity.It also makes security for stable structure of WO3@WO3-xSx by alleviating volume expansion of crystalline core WO3 during cycling to prolong cycling life.Additionally,“softer”ions S2-would weaken interaction between hard acid Mg2+ and ionic lattice to enhance Mg2+storage kinetics.Therefore,WO3@WO3-xSx delivers the superior cycling performance(1000 cycles with 83.3%),rate capability(88.5 mAh g-1 at 1000 mA g-1)and specific capacity(about 150 mAh g-1 at 50 mA g-1),which is near 2 times higher than that of WO3.It is believed that the crystalline@amorphous core-shell structure with both active core and shell designing via doping strategy is enlightening for the development of high-performance RMBs,and such design can be extended to other energy storage devices for better electrochemical performance. 展开更多
关键词 Doping Sulfuration Crystalline@amorphous core-shell structure WO3 Rechargeable magnesium batteries
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A fault diagnosis method for complex chemical process integrating shallow learning and deep learning 认领 引用
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作者 Yadong He Zhe Yang +3 位作者 Bing Sun Wei Xu Chengdong Gou Chunli Wang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2025年第9期49-65,共17页
The accurate identification and diagnosis of chemical process faults are crucial for ensuring the safe and stable operation of production plants.The current hot topic in industrial process fault diagnosis research is ... The accurate identification and diagnosis of chemical process faults are crucial for ensuring the safe and stable operation of production plants.The current hot topic in industrial process fault diagnosis research is data-driven methods.Most of the existing fault diagnosis methods focus on a single shallow or deep learning model.This paper proposes a novel hybrid fault diagnosis method to fully utilize various features to improve the accuracy of fault diagnosis.Furthermore,the method addresses the issue of incomplete data,which has been largely overlooked in the majority of existing research.Firstly,the variable data is effectively fitted using orthogonal non-negative matrix tri-factorization,and the missing data in the matrix is solved to construct a complete production condition relationship.Next,the support vector machine model and the deep residual contraction network model are trained in parallel to prediagnose process faults by mining linear and non-linear interaction features.Finally,a novel mapping relationship is established between the result and model levels using the multi-layer perceptron algorithm to complete the final diagnosis and evaluation of the fault.To demonstrate the effectiveness of the proposed method,we conducted extensive comparative experiments on the Tennessee Eastman dataset and the ethylene plant cracking unit dataset.The experimental results show that the method has advantages in different evaluation metrics. 展开更多
关键词 Chemical process Hybrid fault diagnosis Incomplete data Support vector machine Deep residual contraction network Multi-layer perceptron
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An efficient process for decomposing perfluorinated compounds by reactive species during microwave discharge in liquid 认领 引用
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作者 Shaohua SUN Bing SUN +3 位作者 Zhonglin YU Qiuying WANG Yuanyuan WANG Jinglin LIU 《Plasma Science and Technology》 SCIE EI CSCD 2025年第1期93-102,共10页
Microwave discharge plasma in liquid(MDPL)is a new type of water purification technology with a high mass transfer efficiency.It is a kind of low-temperature plasma technology.The reactive species produced by the disc... Microwave discharge plasma in liquid(MDPL)is a new type of water purification technology with a high mass transfer efficiency.It is a kind of low-temperature plasma technology.The reactive species produced by the discharge can efficiently act on the pollutants.To clarify the application prospects of MDPL in water treatment,the discharge performance,practical application,and pollutant degradation mechanism of MDPL were studied in this work.The effects of power,conductivity,pH,and Fe2+concentration on the amount of reactive species produced by the discharge were explored.The most common and refractory perfluorinated compounds(perfluorooctanoic acid(PFOA)and perfluorooctane sulfonate(PFOS)in water environments are degraded by MDPL technology.The highest defluorination of PFOA was 98.8% and the highest defluorination of PFOS was 92.7%.The energy consumption efficiency of 50% defluorination(G50-F)of PFOA degraded by MDPL is 78.43 mg/kWh,PFOS is 42.19 mg/kWh.The results show that the MDPL technology is more efficient and cleaner for the degradation of perfluorinated compounds.Finally,the reaction path and pollutant degradation mechanisms of MDPL production were analyzed.The results showed that MDPL technology can produce a variety of reactive species and has a good treatment effect for refractory perfluorinated pollutants. 展开更多
关键词 microwave discharge plasma in liquid reactive species purification
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Electrode/Electrolyte Optimization‑Induced Double‑Layered Architecture for High‑Performance Aqueous Zinc‑(Dual)Halogen Batteries 认领 引用 被引量：4
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作者 Chengwang Zhou Zhezheng Ding +7 位作者 Shengzhe Ying Hao Jiang Yan Wang Timing Fang You Zhang Bing Sun Xiao Tang Xiaomin Liu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2025年第3期121-137,共17页
Aqueous zinc-halogen batteries are promising candidates for large-scale energy storage due to their abundant resources,intrinsic safety,and high theoretical capacity.Nevertheless,the uncontrollable zinc dendrite growt... Aqueous zinc-halogen batteries are promising candidates for large-scale energy storage due to their abundant resources,intrinsic safety,and high theoretical capacity.Nevertheless,the uncontrollable zinc dendrite growth and spontaneous shuttle effect of active species have prohibited their practical implementation.Herein,a double-layered protective film based on zinc-ethylenediamine tetramethylene phosphonic acid(ZEA)artificial film and ZnF2-rich solid electrolyte interphase(SEI)layer has been successfully fabricated on the zinc metal anode via electrode/electrolyte synergistic optimization.The ZEA-based artificial film shows strong affinity for the ZnF2-rich SEI layer,therefore effectively suppressing the SEI breakage and facilitating the construction of double-layered protective film on the zinc metal anode.Such double-layered architecture not only modulates Zn2+flux and suppresses the zinc dendrite growth,but also blocks the direct contact between the metal anode and electrolyte,thus mitigating the corrosion from the active species.When employing optimized metal anodes and electrolytes,the as-developed zinc-(dual)halogen batteries present high areal capacity and satisfactory cycling stability.This work provides a new avenue for developing aqueous zinc-(dual)halogen batteries. 展开更多
关键词 Zn metal anodes Double-layered protective film Electrode/electrolyte optimization Aqueous zinc-(dual)halogen batteries
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Optimizing thermoelectric performance through Sb doping in Ge0.8Mn0.1Pb0.1Te alloys 认领 引用 被引量：3
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作者 Jun-Xiang Zhang Qi-Dong Wang +13 位作者 Bing Sun Jia-Qiang Zhao Mei-Jiao Wang Ting-Ting Chen Juan Li Shuai Zhang Xiu Yin Lian-Zhen Cao En-Si Cao Li Sun Hong-Yu Zhu Tai-Chao Su Dong-Wei Ao Hong-An Ma 《Rare Metals》 SCIE EI CAS CSCD 2025年第9期6585-6593,共9页
GeTe-based alloys are promising thermoelectric materials for use at medium temperatures owing to their excellent thermoelectric performance.In this study,Ge0.8-xMn0.1Pb0.1SbxTe alloys were obtained via vac... GeTe-based alloys are promising thermoelectric materials for use at medium temperatures owing to their excellent thermoelectric performance.In this study,Ge0.8-xMn0.1Pb0.1SbxTe alloys were obtained via vacuum melting and hot-press sintering.Sb doping effectively decreased the carrier concentration,resulting in an enhancement of the Seebeck coefficient and consequently imparting excellent electrical transport performance to the sample.With doping concentration increasing,the structure of the sample changed from rhombohedral to cubic,creating a more favorable band structure for electronic transport properties.The incorporation of Sb into GeTe intensifies the lattice defects within the material.The significant decrease in the lattice thermal conductivity of the Ge0.71Mn0.1Pb0.1Sb0.09Te alloy to 0.84 W m-1K-1at 323 K is primarily attributed to the phonon scattering effect emanating from the presence of edge dislocation,point defects,and inherent grain boundaries.Finally,the maximum ZT value of the Ge0.74Mn0.1Pb0.1Sb0.06Te alloy was~1.53773 K,which is a significant enhancement of 0.35 compared to the undoped Ge0.8Mn0.1Pb0.1Te alloy.This substantial improvement underscores the positive impact of the selected doping elements and their concentrations on the overall thermoelectric performance of the alloy. 展开更多
关键词 Thermoelectric GeTe Sb doping Structural transition
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Ancient DNA reveals genetic exchange in the Hehuang valley in the context of demic diffusion during the Han dynasty 认领 引用 被引量：1
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作者 Langyun Wang Yutong Wang +8 位作者 Bing Sun Daxuan Zhang Guanjin Liang Pengcheng Ma Hao Zhang Chunxiang Li Xiaojun Hu Quanchao Zhang Yinqiu Cui 《Journal of Genetics and Genomics》 SCIE CAS CSCD 2025年第4期592-595,共4页
The Hehuang Valley,situated in the northeastern section of the Qinghai-Tibet Plateau,represents the upper reaches of the Yellow River(Fig.1A).It is a significant geographic region of origin for numerous Neolithic cult... The Hehuang Valley,situated in the northeastern section of the Qinghai-Tibet Plateau,represents the upper reaches of the Yellow River(Fig.1A).It is a significant geographic region of origin for numerous Neolithic cultures,including the Majiayao,Zongri,and Qijia cultures(Dong et al.,2013). 展开更多
关键词 hehuang valley neolithic cultures demic diffusion han dynasty yellow river neolithic culturesincluding ancient dna qinghai tibet plateau
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Temperature and acoustic impedance simultaneous sensor based on forward stimulated Brillouin scattering in highly nonlinear fiber 认领 引用 被引量：1
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作者 Shilong Liu Yang Li +2 位作者 Hongbin Hu Bing Sun Zuxing Zhang 《Chinese Physics B》 SCIE EI CAS CSCD 2025年第7期394-400,共7页
A temperature and acoustic impedance simultaneous sensor based on forward stimulated Brillouin scattering(FSBS)in highly nonlinear fiber(HNLF)with high sensitivity and high accuracy is proposed and demonstrated in thi... A temperature and acoustic impedance simultaneous sensor based on forward stimulated Brillouin scattering(FSBS)in highly nonlinear fiber(HNLF)with high sensitivity and high accuracy is proposed and demonstrated in this paper.High-order acoustic modes(HOAMs)are used to achieve individual or simultaneous measurement of the two parameters.Transverse acoustic waves(TAWs)involved in the FSBS process can efficiently sense the mechanical or environmental changes outside the fiber cladding,which will be reflected in a linear shift of the acoustic resonance frequency.By analyzing the frequencies of specific scattering peaks,the temperature and acoustic impedance outside the fiber cladding can be obtained simultaneously.The highest measured temperature and acoustic impedance sensitivities are 184.93 k Hz/℃and444.56 k Hz/MRayl,and the measurement accuracies are 0.09℃and 0.009 MRayl,respectively,which are both at desirable levels.We believe this work can provide potential application solutions for sensing fields involving temperature or acoustic impedance measurements. 展开更多
关键词 forward stimulated Brillouin scattering(FSBS) fiber optic sensor temperature sensor acoustic impedance sensor simultaneous measurement
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Bubble breakup in viscous liquids at a microfluidic T-junction 认领 引用
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作者 Hongwei Zhu Junjie Feng +5 位作者 Ziyi Xu Chunying Zhu Youguang Ma Wei Xu Bing Sun Taotao Fu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2025年第2期44-57,共14页
Bubble breakup at T-junction microchannels is the basis for the numbering-up of gas−liquid two-phase flow in parallelized microchannels. This article presents the bubble breakup in viscous liquids at a microfluidic T-... Bubble breakup at T-junction microchannels is the basis for the numbering-up of gas−liquid two-phase flow in parallelized microchannels. This article presents the bubble breakup in viscous liquids at a microfluidic T-junction. Nitrogen is used as the gas phase, and glycerol-water mixtures with different mass concentration of glycerol as the liquid phase. The evolution of the gas−liquid interface during bubble breakup at the microfluidic T-junction is explored. The thinning of the bubble neck includes the squeezing stage and the rapid pinch-off stage. In the squeezing stage, the power law relation is found between the minimum width of the bubble neck and the time, and the values of exponents α1 and α2 are influenced by the viscous force. The values of pre-factors m1 and m2 are negatively correlated with the capillary number. In the rapid pinch-off stage, the thinning of the bubble neck is predominated by the surface tension, and the minimum width of the bubble neck can be scaled with the remaining time as power-law. The propagation of the bubble tip can be characterized by the power law between the movement distance and the time, with decreasing exponent as increased liquid viscosity. 展开更多
关键词 Bubble Microfluidics Microchannel Breakup Viscous fluid
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Simulated Calculation and Measured Analysis on the Spot with the 750 kV Transformer Switch-In with Load 认领 引用
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作者 Licheng Zhang Shan Li Bing Sun 《Journal of Electronic Research and Application》 2025年第1期147-156,共10页
Through an example of a main transformer switch-in with load during the reverse transmission of a 750 kV power plan,the paper introduces the basic principle of transformer switch-in with load.EMTPE program that is use... Through an example of a main transformer switch-in with load during the reverse transmission of a 750 kV power plan,the paper introduces the basic principle of transformer switch-in with load.EMTPE program that is used to establish a calculation model,at the same time mainly considers the excitation characteristics of the transformer,the transient model of the circuit breaker,and the model of high voltage transformer,and calculated the inrush current with transformer switch-in with load in this plan.During system debugging in the plan,the two sets of main transformers passed the closing and opening test,and the data of inrush current in the test are recorded and analyzed.The simulation calculation and measured data show that the results are consistent.The simulation calculation also shows that it is not recommended to perform on-load closing of the transformer except for special circumstances,because of the influence of hysteresis characteristic when the transformer was switched in with load or the terminal voltage of the transformer resumed normal level from a low one after an external near-end fault was cleared,which various transformer differential protection using the characteristics of inrush to implement block scheme may mal-operate. 展开更多
关键词 Transformer Switch-in with load Inrush current Ultra-saturation converter station Hysteresis characteristic EMTPE
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Standardized Operational Protocol for Human Brain Banking in China 认领 引用 被引量：18
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作者 Wenying Qiu Hanlin Zhang +18 位作者 Aimin Bao Keqing Zhu Yue Huang Xiaoxin Yan Jing Zhang Chunjiu Zhong Yong Shen Jiangning Zhou Xiaoying Zheng Liwei Zhang Yousheng Shu Beisha Tang Zhenxin Zhang Gang Wang Ren Zhou Bing Sun Changlin Gong Shumin Duan Chao Ma 《Neuroscience Bulletin》 SCIE CAS CSCD 2019年第2期270-276,共7页
With the progress of society, there is an increasing need to tackle disorders of the central nervous system. Human brain tissue, unlike animal tissues, is an irreplaceable resource for the study of neurological diseas... With the progress of society, there is an increasing need to tackle disorders of the central nervous system. Human brain tissue, unlike animal tissues, is an irreplaceable resource for the study of neurological diseases (1)Aimed at scientific research and education, the roles of human brain tissue repositories are to acquire brain tissue from donors, prepare, process, and preserve collected samples,provide tissue to specific eligible facilities, and determine the characteristics of each tissue sample. 展开更多
关键词 Standardized Brain Banking increasing
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Phosphorylated TDP-43 Staging of Primary Age-Related Tauopathy 认领 引用 被引量：10
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作者 Xiaoling Zhang Bing Sun +8 位作者 Xing Wang Hui Lu Fangjie Shao Annemieke J.M.Rozemuller Huazheng Liang Chong Liu Jiadong Chen Manli Huang Keqing Zhu 《Neuroscience Bulletin》 SCIE CAS CSCD 2019年第2期183-192,共10页
Primary age-related tauopathy(PART) is characterized by tau neurofibrillary tangles(NFTs) in the absence of amyloid plaque pathology. In the present study,we analyzed the distribution patterns of phosphorylated43-kDa ... Primary age-related tauopathy(PART) is characterized by tau neurofibrillary tangles(NFTs) in the absence of amyloid plaque pathology. In the present study,we analyzed the distribution patterns of phosphorylated43-kDa TAR DNA-binding protein(pTDP-43) in the brains of patients with PART. Immunohistochemistry and immunofluorescence double-labeling in multiple brain regions was performed on brain tissues from PART,Alzheimer's disease(AD), and aging control cases. We examined the regional distribution patterns of pTDP-43 intraneuronal inclusions in PART with Braak NFT stages[ 0 and B IV, and a Thal phase of 0(no beta-amyloid present). We found four stages which indicated potentially sequential dissemination of pTDP-43 in PART. Stage I was characterized by the presence of pTDP-43 lesions in the amygdala, stage II by such lesions in the hippocampus,stage III by spread of pTDP-43 to the neocortex, and stage IV by pTDP-43 lesions in the putamen, pallidum, and insular cortex. In general, the distribution pattern of pTDP-43 pathology in PART cases was similar to the early TDP-43 stages reported in AD, but tended to be more restricted to the limbic system. However, there were some differences in the distribution patterns of pTDP-43 between PART and AD, especially in the dentate gyrus of the hippocampus. Positive correlations were found in PART between the Braak NFT stage and the pTDP-43 stage and density. 展开更多
关键词 TDP-43 Primary age-related tauopathy Alzheimer's disease Neurofibrillary tangle Hippocampus
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Can urban forests provide acoustic refuges for birds?Investigating the influence of vegetation structure and anthropogenic noise on bird sound diversity 认领 引用 被引量：8
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作者 Zezhou Hao Chengyun Zhang +8 位作者 Le Li Bing Sun Shuixing Luo Juyang Liao Qingfei Wang Ruichen Wu Xinhui Xu Christopher A.Lepczyk Nancai Pei 《Journal of Forestry Research》 SCIE EI CAS CSCD 2024年第2期163-175,共13页
As a crucial component of terrestrial ecosystems,urban forests play a pivotal role in protecting urban biodiversity by providing suitable habitats for acoustic spaces.Previous studies note that vegetation structure is... As a crucial component of terrestrial ecosystems,urban forests play a pivotal role in protecting urban biodiversity by providing suitable habitats for acoustic spaces.Previous studies note that vegetation structure is a key factor influencing bird sounds in urban forests;hence,adjusting the frequency composition may be a strategy for birds to avoid anthropogenic noise to mask their songs.However,it is unknown whether the response mechanisms of bird vocalizations to vegetation structure remain consistent despite being impacted by anthropogenic noise.It was hypothesized that anthropogenic noise in urban forests occupies the low-frequency space of bird songs,leading to a possible reshaping of the acoustic niches of forests,and the vegetation structure of urban forests is the critical factor that shapes the acoustic space for bird vocalization.Passive acoustic monitoring in various urban forests was used to monitor natural and anthropogenic noises,and sounds were classified into three acoustic scenes(bird sounds,human sounds,and bird-human sounds)to determine interconnections between bird sounds,anthropogenic noise,and vegetation structure.Anthropogenic noise altered the acoustic niche of urban forests by intruding into the low-frequency space used by birds,and vegetation structures related to volume(trunk volume and branch volume)and density(number of branches and leaf area index)significantly impact the diversity of bird sounds.Our findings indicate that the response to low and high frequency signals to vegetation structure is distinct.By clarifying this relationship,our results contribute to understanding of how vegetation structure influences bird sounds in urban forests impacted by anthropogenic noise. 展开更多
关键词 Anthropogenic noise Bird sounds Urban forests Vegetation structure
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Characteristics of gas-liquid pulsed discharge plasma reactor and dye decoloration efficiency 认领 引用 被引量：7
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作者 Bing Sun Nyein Nyein Aye +3 位作者 Zhiying Gao Dan Lv Xiaomei Zhu Masayuki Sato 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2012年第5期840-845,共6页
The pulsed high-voltage discharge is a new advanced oxidation technology for water treatment.Methyl Orange(MO)dye wastewater was chosen as the target object.Some investigations were conducted on MO decoloration includ... The pulsed high-voltage discharge is a new advanced oxidation technology for water treatment.Methyl Orange(MO)dye wastewater was chosen as the target object.Some investigations were conducted on MO decoloration including the discharge characteristics of the multi-needle reactor,parameter optimization,and the degradation mechanism.The following results were obtained.The color group of the azo dye MO was effectively decomposed by water surface plasma.The decoloration rate was promoted with the increase of treatment time,peak voltage,and pulse frequency.When the initial conductivity was 1700μS/cm,the decoloration rate was the highest.The optimum distance between the needle electrodes and the water surface was 1 mm,the distance between the grounding electrode and the water surface was 28 mm,and the number of needle electrodes and spacing between needles were 24 and 7.5 mm,respectively.The decoloration rate of MO was affected by the gas in the reactor and varied in the order oxygen〉air〉argon〉nitrogen,and the energy yield obtained in this investigation was 0.45 g/kWh. 展开更多
关键词 multi-needle plasma reactor water surface plasma decoloration efficiency Methyl Orange decoloration
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Realizing high thermoelectric performance flexible free-standing PEDOT:PSS/Bi0.5Sb1.5Te3composite films for power generation 认领 引用 被引量：6
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作者 Li Sun Dong-Wei Ao +3 位作者 Junphil Hwang Qin Liu En-Si Cao Bing Sun 《Rare Metals》 SCIE EI CAS CSCD 2024年第11期5985-5993,共9页
Flexible thermoelectrics provide a distinct solution for developing sustainable and portable power supplies.Inorganic/organic material compositing is an effective strategy to induce a significant enhancement of thermo... Flexible thermoelectrics provide a distinct solution for developing sustainable and portable power supplies.Inorganic/organic material compositing is an effective strategy to induce a significant enhancement of thermoelectric(TE)performance.However,the poor electrical performance of inorganic/organic material is attributed to the poor carrier transport between organic/inorganic interfaces induced by the low contribution of composited inorganic materials.Herein,we prepared a high room temperature figure-of-merit(ZT)value of~0.19 and high bending resistance(surviving 1200 bending cycles at the bending radius of 16.5 mm)of p-type poly(3,4-ethylenedioxy thiophene):poly(4-styrenesulfonate)(PEDOT:PSS)/Bi0.5Sb1.5Te3free-standing composite film via a facile vacuum-as sis ted filtration approach.Compositing Bi0.5Sb1.5Te3nano-spherical particles into PEDOT:PSS results in the optimized interfacial contact and carrier concentration,leading to a high Seebeck coefficient of~43.79μV·K-1.Accordingly,a high-power factor of~1.52μW·cm-1·K-2is achieved in the PEDOT:PSS/Bi0.5Sb1.5Te3composite film at room temperature.In addition,the PEDOT:PSS/Bi0.5Sb1.5Te3interfaces with phase boundaries,nanograins and point defects could further decrease the thermal conductivity to~0.20 W·m-1K-1,leading to a high ZT value.Furthermore,a 6-leg freestanding film device was assembled,which provided an output power of 44.94 nW.This study demonstrates that free-standing organic/inorganic composite films are effective power sources for wearable electronic products. 展开更多
关键词 Thermoelectric PEDOT:PSS/Bi0.5Sb1.5Te3 Flexible films Device
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Oxygen redox chemistry in lithium-rich cathode materials for Li-ion batteries:Understanding from atomic structure to nano-engineering 认领 引用 被引量：6
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作者 Majid Farahmandjou Shuoqing Zhao +3 位作者 Wei-Hong Lai Bing Sun Peter.H.L.Notten Guoxiu Wang 《Nano Materials Science》 EI CAS CSCD 2022年第4期322-338,共17页
Lithium-rich oxide compounds have been recognized as promising cathode materials for high performance Li-ion batteries,owing to their high specific capacity.However,it remains a great challenge to achieve the fully re... Lithium-rich oxide compounds have been recognized as promising cathode materials for high performance Li-ion batteries,owing to their high specific capacity.However,it remains a great challenge to achieve the fully reversible anionic redox reactions to realize high capacity,high stability,and low voltage hysteresis for lithiumrich cathode materials.Therefore,it is critically important to comprehensively understand and control the anionic redox chemistry of lithium-rich cathode materials,including atomic structure design,and nano-scale materials engineering technologies.Herein,we summarize the recent research progress of lithium-rich cathode materials with a focus on redox chemistry.Particularly,we highlight the oxygen-based redox reactions in lithium-rich metal oxides,with critical views of designing next generation oxygen redox lithium cathode materials.Furthermore,we purposed the most promising strategies for improving the performances of lithium-rich cathode materials with a technology-spectrum from the atomic scale to nano-scale. 展开更多
关键词 Oxygen redox chemistry Lithium-rich cathode Li-ion batteries Atomic structure Nano-engineering
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Effects of antiarrhythmic peptide 10 on acute ventricular arrhythmia 认领 引用 被引量：7
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作者 Bing Sun Jin-Fa Jiang +1 位作者 Cui-Mei Zhao Chao-Hui Hu 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2015年第3期229-233,共5页
Objective:To observe the effects antiarrhythmic peptide 10(AAPIO) aon acute ventricular arrhythmia and the phosphorylation state of ischemic myocardium conncxin.Methods:Acute total ischemia and partial ischemia models... Objective:To observe the effects antiarrhythmic peptide 10(AAPIO) aon acute ventricular arrhythmia and the phosphorylation state of ischemic myocardium conncxin.Methods:Acute total ischemia and partial ischemia models were established by ceasing perfusion and ligating the left anterior descending coronary artery in SD rats.The effects of AAP10(1 mg/L) on the incidence rate of ischemia-induced ventricular arrhythmia were observed.The ischemic myocardium was sampled to detect total-Cx43 and NP-Cx43 by immunofluorcsecnt staining and western blotting,the total-Cx43 expression was detected through image analysis system by semi-quantitative analysis.Results:AAP10 could significantly decrease the incidence of ischemia-induced ventricular tachycardia and ventricular fibrillation.During ischemic stage,total ischemia(TI) and AAP10 total ischemia(ATI) groups were compared with partial ischemia(Pi) and AAP10 partial ischemia(API) groups.The rates of incidence for arrhythmia in the ATI and API groups(10%and 0%) were lower than those in the TI and PI groups(60%and 45%).The difference between the two groups was statistically significant(P=0.019,P=0.020).The semi-quantitative analysis results of the ischemic myocardium showed that the total-Cx43 protein expression distribution areas for TI.ATI,PI and API groups were significantly decreased compared with the control group.On the other hand,the NP-Cx43 distribution areas of TI,ATI,PI and API groups were significantly increased compared with the control group(P>0.05).AAP10 could increase the total-Cx43 expression in the ischemic area and decrease the NP-Cx43 expression.Western blot results were consistent with the results of immunofluorescence staining.Conclusions:AAP10 can significantly decrease the rate of incidence of acute ischemia-induced ventricular tachycardia and ventricular fibrillation.Acute ischemic ventricular arrhythmias may have a relationship with the decreased phosphorylation of Cx43 induced by ischemia.AAP10 may stimulate the phosphorylation of Cx43 by increasing the totai-Cx43 expression and decreasing the NP-Cx43 expression in the ischemic area,so as to decrease ventricular arrhythmia. 展开更多
关键词 Cx43 Ventricular arrhythmia Acute myocardial ischemia
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