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Comparison of continuous homogenous azeotropic and pressure-swing distillation for a minimum azeotropic system ethyl acetate/nhexane separation 认领 引用 被引量：6
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作者 Liping Lü Lin Zhu +2 位作者 Huimin Liu Hang Li Shirui Sun 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2018年第10期2023-2033,共11页
Continuous homogenous azeotropic distillation(CHAD)and pressure-swing distillation(PSD)are explored to separate a minimum-boiling azeotropic system of ethyl acetate and n-hexane.The CHAD process with acetone as the en... Continuous homogenous azeotropic distillation(CHAD)and pressure-swing distillation(PSD)are explored to separate a minimum-boiling azeotropic system of ethyl acetate and n-hexane.The CHAD process with acetone as the entrainer and the PSD process with the pressures of 0.1 MPa and 0.6 MPa in two columns are designed and simulated by Aspen Plus.The operating conditions of the two processes are optimized via a sequential modular approach to obtain the minimum total annual cost(TAC).The computational results show that the partially heat integrated pressure-swing distillation(HIPSD)has reduced in the energy cost and TAC by 40.79%and 35.94%,respectively,than the conventional PSD,and has more greatly reduced the energy cost and TAC by 62.61%and 49.26%respectively compared with the CHAD process.The comparison of CHAD process and partially HIPSD process illustrates that the partially HIPSD has more advantages in averting the product pollution,energy saving,and economy. 展开更多
关键词 Continuous homogenous azeotropic distillation Pressure-swing distillation Ethyl acetate-hexane Azeotrope
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Typhoon Case Comparison Analysis Between Heterogeneous Many-Core and Homogenous Multicore Supercomputing Platforms 认领 引用
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作者 LIU Xin YU Xiaolin +5 位作者 ZHAO Haoran HAN Qiqi ZHANG Jie WANG Chengzhi MA Weiwei XU Da 《Journal of Ocean University of China》 SCIE CAS CSCD 2023年第2期324-334,共11页
In this paper,a typical experiment is carried out based on a high-resolution air-sea coupled model,namely,the coupled ocean-atmosphere-wave-sediment transport(COAWST)model,on both heterogeneous many-core(SW)and homoge... In this paper,a typical experiment is carried out based on a high-resolution air-sea coupled model,namely,the coupled ocean-atmosphere-wave-sediment transport(COAWST)model,on both heterogeneous many-core(SW)and homogenous multicore(Intel)supercomputing platforms.We construct a hindcast of Typhoon Lekima on both the SW and Intel platforms,compare the simulation results between these two platforms and compare the key elements of the atmospheric and ocean modules to reanalysis data.The comparative experiment in this typhoon case indicates that the domestic many-core computing platform and general cluster yield almost no differences in the simulated typhoon path and intensity,and the differences in surface pressure(PSFC)in the WRF model and sea surface temperature(SST)in the short-range forecast are very small,whereas a major difference can be identified at high latitudes after the first 10 days.Further heat budget analysis verifies that the differences in SST after 10 days are mainly caused by shortwave radiation variations,as influenced by subsequently generated typhoons in the system.These typhoons generated in the hindcast after the first 10 days attain obviously different trajectories between the two platforms. 展开更多
关键词 heterogeneous many-core supercomputing platform homogenous multicore supercomputing platform comparison analysis typhoon case
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Velocity Calculation by Automatic Camera Calibration Based on Homogenous Fog Weather Condition 认领 引用 被引量：5
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作者 Hong-Jun Song Yang-Zhou Chen Yuan-Yuan Gao 《International Journal of Automation and computing》 CSCD 2013年第2期143-156,共14页
A novel algorithm for vehicle average velocity detection through automatic and dynamic camera calibration based on dark channel in homogenous fog weather condition is presented in this paper. Camera fixed in the middl... A novel algorithm for vehicle average velocity detection through automatic and dynamic camera calibration based on dark channel in homogenous fog weather condition is presented in this paper. Camera fixed in the middle of the road should be calibrated in homogenous fog weather condition, and can be used in any weather condition. Unlike other researches in velocity calculation area, our traffic model only includes road plane and vehicles in motion. Painted lines in scene image are neglected because sometimes there are no traffic lanes, especially in un-structured traffic scene. Once calibrated, scene distance will be got and can be used to calculate vehicles average velocity. Three major steps are included in our algorithm. Firstly, current video frame is recognized to discriminate current weather condition based on area search method （ASM）. If it is homogenous fog, average pixel value from top to bottom in the selected area will change in the form of edge spread function （ESF）. Secondly, traffic road surface plane will be found by generating activity map created by calculating the expected value of the absolute intensity difference between two adjacent frames. Finally, scene transmission image is got by dark channel prior theory, camera s intrinsic and extrinsic parameters are calculated based on the parameter calibration formula deduced from monocular model and scene transmission image. In this step, several key points with particular transmission value for generating necessary calculation equations on road surface are selected to calibrate the camera. Vehicles pixel coordinates are transformed to camera coordinates. Distance between vehicles and the camera will be calculated, and then average velocity for each vehicle is got. At the end of this paper, calibration results and vehicles velocity data for nine vehicles in different weather conditions are given. Comparison with other algorithms verifies the effectiveness of our algorithm. 展开更多
关键词 Vehicle velocity calculation homogenous fog weather condition dark channel prior monocular camera calibration
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One-pot five-component synthesis of highly functionalized piperidines using oxalic acid dihydrate as a homogenous catalyst 认领 引用 被引量：2
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作者 Seyed Sajad Sajadikhah Malek Taher Maghsoodlou +2 位作者 Nourallah Hazeri Sayyed Mostafa Habibi-Khorassani Anthony C.Willis 《Chinese Chemical Letters》 SCIE CAS CSCD 2012年第5期569-572,共4页
An efficient green protocol is described for the preparation of highly functionalized piperidines via a one-pot five-component reaction between aromatic aldehydes,anilines andβ-ketoesters in the presence of oxalic ac... An efficient green protocol is described for the preparation of highly functionalized piperidines via a one-pot five-component reaction between aromatic aldehydes,anilines andβ-ketoesters in the presence of oxalic acid dihydrate as catalyst in ethanol at ambient temperature.The structure as well as the relative stereochemistry of these compounds was confirmed by single X-ray crystallographic analysis. 展开更多
关键词 Piperidine Heterocycle Homogeneous catalyst Oxalic acid dihydrate Multi-component reaction
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Development of Electrospray Laser Chemical Vapour Deposition for Homogenous Alumina Coatings 认领 引用 被引量：1
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作者 Teiichi KIMURA 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2016年第1期11-14,共4页
Electrospray,as a liquid source supply system,has been applied to chemical vapour deposition（CVD）.In thermal CVD,the microstructure of the obtained films changes from dense to coarse granular because of the decreasi... Electrospray,as a liquid source supply system,has been applied to chemical vapour deposition（CVD）.In thermal CVD,the microstructure of the obtained films changes from dense to coarse granular because of the decreasing surface temperature during deposition.Using the electrospray laser chemical vapour deposition method,we prepared homogenous alumina coatings.We found that laser irradiation was effective in compensating the surface temperature decrease,and an alpha-alumina coating with dense columnar microstructures was obtained at a deposition rate of 200 μm/h using 200 W Nd：YAG laser irradiation. 展开更多
关键词 electrospray laser chemical vapour deposition homogenous Alumina coating
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Finite Indeterminacy of Homogenous Polynomial Germs under Some Subgroups RI_r of R 认领 引用 被引量：2
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作者 LIU Heng-xing ZHANG Dun-mu 《Wuhan University Journal of Natural Sciences》 EI CAS 2005年第5期803-807,共5页
Using the finite determinacy relation with the regular sequence in the Ring Theory and the complete intersection in Analytic Geometry, the finite indeterminacy of homogeneous polynomial germs under some subgroups R1（... Using the finite determinacy relation with the regular sequence in the Ring Theory and the complete intersection in Analytic Geometry, the finite indeterminacy of homogeneous polynomial germs under some subgroups R1（r） of R in both real and complex case is proven by the homogeneity of the polynomial germs. It results in the finite determinacy of homogeneous polynomial germs needn＇t be discussed respectively. 展开更多
关键词 homogeneous polynomial finitely determined algebraic set regular sequence complete intersection
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Structure Elucidation of Hydroxypropyl Cellulose Homogenously Prepared from NaOH/Urea Aqueous Solution 认领 引用
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作者 HaiSong Qi Tao Song Fachuang Lu 《Paper And Biomaterials》 CAS 2016年第2期1-7,共7页
Hydroxypropyl celluloses(HPC) were homogenously synthesized by the reaction of cellulose with propylene oxide in NaOH/urea aqueous solution.Water-soluble HPC with molar degree of substitution(MSNMR) in the range of 0.... Hydroxypropyl celluloses(HPC) were homogenously synthesized by the reaction of cellulose with propylene oxide in NaOH/urea aqueous solution.Water-soluble HPC with molar degree of substitution(MSNMR) in the range of 0.52~0.78 was prepared from microcrystalline cellulose,cotton linters,and spruce sulfite pulp.The structure of the HPC samples was characterized by means of FT-IR,NMR,gas chromatography(GC),and size exclusion chromatography(SEC) analyses.Three types of cellulose samples with different molecular weights were found to dissolve well in the NaOH/urea solvent with no obvious differences in reactivity and regioselectivity.The relative reactivity of hydroxyl groups in the glycosyl unit was in the following order:O-6>O-2>O-3.In addition,the results of the study indicated that the tandem reaction during hydroxypropylation could be ignored. 展开更多
关键词 hydroxypropyl cellulose NaOH/urea aqueous solution structure homogenous synthesis gas chromatography analysis
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Homogenous Balance Method and Exact Analytical Solutions for Whitham-Broer-Kaup Equations in Shallow Water 认领 引用 被引量：1
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作者 XIAZhi 《Chinese Quarterly Journal of Mathematics》 2004年第3期240-246,共7页
Based on the homogenous balance method and with the help of mathematica, the Backlund transformation and the transfer heat equation are derived. Analyzing the heat-transfer equation, the multiple soliton solutions and... Based on the homogenous balance method and with the help of mathematica, the Backlund transformation and the transfer heat equation are derived. Analyzing the heat-transfer equation, the multiple soliton solutions and other exact analytical solution for Whitham-Broer-Kaup equations(WBK) are derived. These solutions contain Fan's, Xie's and Yan's results and other new types of analytical solutions, such as rational function solutions and periodic solutions. The method can also be applied to solve more nonlinear differential equations. 展开更多
关键词 improved homogenous balance method Backlund transformation solitary wave solution multiple solution exact analytical solution rational solution
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Integrability of Hamiltonian Systems with Two Degrees of Freedom and Homogenous Potential of Degree Zero 认领 引用
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作者 Jaume Llibre Claudia Valls 《Journal of Applied Mathematics and Physics》 2018年第11期2192-2201,共10页
We provide necessary conditions in order that the Hamiltonian systems with Hamiltonian ,?and one of the following potentials ?are integrable in the Liouville sense.
关键词 Hamiltonian System Liouville Integrability Darboux Points Homogeneous Potentials of Degree Zero
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Catalytic effect in lithium metal batteries: From heterogeneous catalyst to homogenous catalyst 认领 引用 被引量：2
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作者 Haining Fan Xuan-Wen Gao +3 位作者 Hailong Xu Yichun Ding Shi-Xue Dou Wen-Bin Luo 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第3期305-326,I0008,共22页
Lithium metal batteries are regarded as prominent contenders to address the pressing needs owing to the high theoretical capacity.Toward the broader implementation,the primary obstacle lies in the intricate multi-elec... Lithium metal batteries are regarded as prominent contenders to address the pressing needs owing to the high theoretical capacity.Toward the broader implementation,the primary obstacle lies in the intricate multi-electron,multi-step redox reaction associated with sluggish conversion kinetics,subsequently giving rise to a cascade of parasitic issues.In order to smooth reaction kinetics,catalysts are widely introduced to accelerate reaction rate via modulating the energy barrier.Over past decades,a large amount of research has been devoted to the catalyst design and catalytic mechanism exploration,and thus the great progress in electrochemical performance has been realized.Therefore,it is necessary to make a comprehensive review toward key progress in catalyst design and future development pathway.In this review,the basic mechanism of lithium metal batteries is provided along with corresponding advantages and existing challenges detailly described.The main catalysts employed to accelerate cathode reaction with emphasis on their catalytic mechanism are summarized as well.Finally,the rational design and innovative direction toward efficient catalysts are suggested for future application in metal-sulfur/gas battery and beyond.This review is expected to drive and benefit future research on rational catalyst design with multi-parameter synergistic impacts on the activity and stability of next-generation metal battery,thus opening new avenue for sustainable solution to climate change,energy and environmental issues,and the potential industrial economy. 展开更多
关键词 Energy storage and conversion Metal battery Sulfur battery Air battery Catalytic effect Heterogeneous catalyst Homogeneous catalyst
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Homogenous strength-toughness match for 20Mn2SiCrMoV bainitic large-size parts via processing of VC particles and quenching control 认领 引用 被引量：1
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作者 Yu Tian Zhun-Li Tan +3 位作者 Jin-Zhou Zhang Zheng-Yuan Yuan Min Zhang Bing-Zhe Bai 《Rare Metals》 SCIE EI CAS CSCD 2023年第10期3485-3496,共12页
The problem of insufficient hardenability in general large-size parts always occurs in product manufacturing because of their large size,etc.It is restricted mainly by its own alloy composition with micro-alloy and ke... The problem of insufficient hardenability in general large-size parts always occurs in product manufacturing because of their large size,etc.It is restricted mainly by its own alloy composition with micro-alloy and key quenching and partitioning(Q&P) process.The relationship between the cooling rate and properties of small samples was analyzed as the basis of the initial cooling rate at different positions corresponding to large-size parts combined with controlled austenization temperature in this work.Typical as-treated micro structure after a fast cooling rate is mainly composed of lath bainite,martensite,and retained austenite(RA),while bainite and RA after a slow cooling rate.Simulations showed that cooling control via decreasing spray intensity,meeting higher strength at the surface,and good strength and toughness match can be obtained both at the surface and in the center.As-treated large ring part has~1330 MPa tensile strength and~95 J impact energy at the surface,and meantime,~1191 MPa tensile strength and~70 J impact energy in the center,which narrows the property difference. 展开更多
关键词 Large-size parts Property homogeneity Cooling control Bainite VC
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The Application Effect of Humanistic Care Homogenous Management in Medical Oncology Nursing 认领 引用
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作者 HE Jiangtao 《外文科技期刊数据库（文摘版）医药卫生》 2021年第12期1269-1272,共4页
Objective: to explore the application effect of humanized nursing management in oncology department. Methods: A total of 60 patients treated in the oncology Department of our hospital from January 2019 to October 2021... Objective: to explore the application effect of humanized nursing management in oncology department. Methods: A total of 60 patients treated in the oncology Department of our hospital from January 2019 to October 2021 were randomly divided into control group (n=30) and experimental group (n=30). The control group adopts general nursing methods, and the experimental group adopts humanized nursing and homogeneous management. The satisfaction of breast-feeding patients was compared between the two groups. Results: There was significant difference in nursing effect between the control group and the observation group. The experimental group (96.66%) was significantly higher than the conventional group (66.66%). The difference was statistically significant (P<0.05). Conclusion: Humanized nursing management has a good application effect in the field of internal medicine nursing, can effectively improve the quality of clinical nursing and patient satisfaction with nursing services, should be popularized in practice. 展开更多
关键词 humanistic care homogenization management department of oncology satisfaction
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Semi-Homogenous Generalization: Improving Homogenous Generalization for Privacy Preservation in Cloud Computing 认领 引用 被引量：2
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作者 Xian-Mang He Xiaoyang SeanWang +1 位作者 Dong Li Yan-Ni Hao 《Journal of Computer Science & Technology》 SCIE EI CSCD 2016年第6期1124-1135,共12页
Data security is one of the leading concerns and primary challenges for cloud computing. This issue is getting more and more serious with the development of cloud computing. However, the existing privacy-preserving da... Data security is one of the leading concerns and primary challenges for cloud computing. This issue is getting more and more serious with the development of cloud computing. However, the existing privacy-preserving data sharing techniques either fail to prevent the leakage of privacy or incur huge amounts of information loss. In this paper, we propose a novel technique, termed as linking-based anonymity model, which achieves K-anonymity with quasi-identifiers groups （QI-groups） having a size less than K. In the meanwhile, a semi-homogenous generalization is introduced to be against the attack incurred by homogenous generalization. To implement linking-based anonymization model, we propose a simple yet efficient heuristic local recoding method. Extensive experiments on real datasets are also conducted to show that the utility has been significantly improved by our approach compared with the state-of-the-art methods. 展开更多
关键词 privacy preservation cloud computing linking-based anonymization semi-homogenous homogenous generalization
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A radiomics approach for predicting gait freezing in Parkinson's disease based on resting-state functional magnetic resonance imaging indices:A cross-sectional study 认领 引用 被引量：3
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作者 Miaoran Guo Hu Liu +6 位作者 Long Gao Hongmei Yu Yan Ren Yingmei Li Huaguang Yang Chenghao Cao Guoguang Fan 《Neural Regeneration Research》 SCIE CAS CSCD 2026年第4期1621-1627,共7页
Freezing of gait is a significant and debilitating motor symptom often observed in individuals with Parkinson's disease.Resting-state functional magnetic resonance imaging,along with its multi-level feature indice... Freezing of gait is a significant and debilitating motor symptom often observed in individuals with Parkinson's disease.Resting-state functional magnetic resonance imaging,along with its multi-level feature indices,has provided a fresh perspective and valuable insight into the study of freezing of gait in Parkinson's disease.It has been revealed that Parkinson's disease is accompanied by widespread irregularities in inherent brain network activity.However,the effective integration of the multi-level indices of resting-state functional magnetic resonance imaging into clinical settings for the diagnosis of freezing of gait in Parkinson's disease remains a challenge.Although previous studies have demonstrated that radiomics can extract optimal features as biomarkers to identify or predict diseases,a knowledge gap still exists in the field of freezing of gait in Parkinson's disease.This cross-sectional study aimed to evaluate the ability of radiomics features based on multi-level indices of resting-state functional magnetic resonance imaging,along with clinical features,to distinguish between Parkinson's disease patients with and without freezing of gait.We recruited 28 patients with Parkinson's disease who had freezing of gait(15 men and 13 women,average age 63 years)and 30 patients with Parkinson's disease who had no freezing of gait(16 men and 14 women,average age 64 years).Magnetic resonance imaging scans were obtained using a 3.0T scanner to extract the mean amplitude of low-frequency fluctuations,mean regional homogeneity,and degree centrality.Neurological and clinical characteristics were also evaluated.We used the least absolute shrinkage and selection operator algorithm to extract features and established feedforward neural network models based solely on resting-state functional magnetic resonance imaging indicators.We then performed predictive analysis of three distinct groups based on resting-state functional magnetic resonance imaging indicators indicators combined with clinical features.Subsequently,we conducted 100 additional five-fold cross-validations to determine the most effective model for each classification task and evaluated the performance of the model using the area under the receiver operating characteristic curve.The results showed that when differentiating patients with Parkinson's disease who had freezing of gait from those who did not have freezing of gait,or from healthy controls,the models using only the mean regional homogeneity values achieved the highest area under the receiver operating characteristic curve values of 0.750(with an accuracy of 70.9%)and 0.759(with an accuracy of 65.3%),respectively.When classifying patients with Parkinson's disease who had freezing of gait from those who had no freezing of gait,the model using the mean amplitude of low-frequency fluctuation values combined with two clinical features achieved the highest area under the receiver operating characteristic curve of 0.847(with an accuracy of 74.3%).The most significant features for patients with Parkinson's disease who had freezing of gait were amplitude of low-frequency fluctuation alterations in the left parahippocampal gyrus and two clinical characteristics:Montreal Cognitive Assessment and Hamilton Depression Scale scores.Our findings suggest that radiomics features derived from resting-state functional magnetic resonance imaging indices and clinical information can serve as valuable indices for the identification of freezing of gait in Parkinson's disease. 展开更多
关键词 amplitude of low-frequency fluctuation degree centrality feedforward neural network freezing of gait machine learning parahippocampal gyrus Parkinson's disease receiver operating characteristic regional homogeneity resting-state functional magnetic resonance imaging
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Achieving high strength WE43 alloy with homogeneous corrosion and improved biological properties by high-pressure torsion 认领 引用
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作者 Bo DENG De-chuang ZHANG +3 位作者 Yi-long DAI Zhi-nan YANG Yun-cang LI Cui-e WEN 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2026年第4期1102-1119,共18页
The corrosion resistance,tensile yield strength,elongation,and biocompatibility of the WE43 Mg alloy were significantly improved by high-pressure torsion(HPT)processing.The microstructure of WE43 changed through three... The corrosion resistance,tensile yield strength,elongation,and biocompatibility of the WE43 Mg alloy were significantly improved by high-pressure torsion(HPT)processing.The microstructure of WE43 changed through three distinct stages:deformation strengthening,dynamic recovery,and dynamic recrystallization during HPT.WE43 nanocrystals with an average grain size of(105±5)nm were successfully prepared after 7 or 10 revolutions of HPT processing.The HPT-7R WE43 samples showed the highest yield strength of(330.9±2.2)MPa,the highest tensile strength of(374.2±1.9)MPa,and an elongation of(13.2±1.1)%.The HPT-10R WE43 samples exhibited the lowest degradation rate of(0.401±0.031)mm/a;furthermore,it revealed cell viability greater than that of pure Mg and solution-treated WE43 toward MC3T3-E1 pre-osteoblasts.Overall,the WE43 alloy after HPT processing for 7 or more revolutions demonstrates great potential as a highly desirable bone-implant material. 展开更多
关键词 WE43 alloy high-pressure torsion nanocrystalline homogenous corrosion biocompatibility
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Harnessing MOF-derived homogeneous hierarchical nickel phyllosilicate for epoxy composites:breaking the dilemma between flame retardancy and mechanical and tribological properties via co-deploying polyphosphazene and DoPO 认领 引用 被引量：1
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作者 Jinian Yang Jie Dong +4 位作者 Bingyi Li Weilong Chen Hanxin Yang Dehan Chen Shibin Nie 《ENGINEERING Chemical Engineering》 SCIE EI CAS CSCD 2026年第6期19-36,共18页
Epoxy resin(EP)is a widely utilized thermosetting resin in structural and functional materials;however,achieving a delicate balance between flame retardancy and stress-sensitive properties remains a significant challe... Epoxy resin(EP)is a widely utilized thermosetting resin in structural and functional materials;however,achieving a delicate balance between flame retardancy and stress-sensitive properties remains a significant challenge.Herein,a multifunctional flameretardant strategy was rationally designed by incorporating polyphosphazene-decorated hierarchical nickel phyllosilicate(NiPS@PZN)as a reinforcing and wear-resistant filler while 9,10-dihydro-9-oxa-10-phospaphenanthrene-10-oxide(DOPO)as a flame-retardant synergist.Results demonstrate that the synergistic incorporation of NiPS@PZN and DOPO(1:1 mass ratio)at a total loading of 6%endows the EP composites with a UL-94 V-0 rating and elevates the limited oxygen index to 26.6%.This hybrid system also suppresses the total heat release,total smoke production,and carbon dioxide production by 10.4%,23.2%,and 26.8%,respectively.The formation of a continuous and dense char layer confirms a dual-phase flame-retardant mechanism involving both condensed and gaseous phases.Moreover,the synergistic effect of NiPS@PZN and DOPO facilitates the concurrent optimization of mechanical and tribological properties,remarkably increasing the tensile strength to 103.5 MPa and achieving a minimum wear rate of 1.78×105 mm3·N-1·m−1.This study offers a viable pathway for the rational design of multifunctional additives and the fabrication of highperformance composites. 展开更多
关键词 homogeneous hierarchical nickel phyllosilicate co-deployment effect flame retardancy mechanical property wear resistance
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A homogenous solid polymer electrolyte prepared by facile spray drying method is used for room-temperature solid lithium metal batteries 认领 引用 被引量：10
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作者 Zehao Zhou Tong Sun +4 位作者 Jin Cui Xiu Shen Chuan Shi Shuang Cao Jinbao Zhao 《Nano Research》 SCIE EI CSCD 2023年第4期5080-5086,共7页
The aggregation of inorganic particles with high mass ratio will form a heterogeneous electric field in the solid polymer electrolytes(SPEs),which is difficult to be compatible with lithium anode,leading to inadequate... The aggregation of inorganic particles with high mass ratio will form a heterogeneous electric field in the solid polymer electrolytes(SPEs),which is difficult to be compatible with lithium anode,leading to inadequate ionic conductivity.Herein,a facile spray drying method is adopted to increase the mass ratio of inorganic particles and solve the aggregation problems of fillers simultaneously.The polyvinylidene fluoride(PVDF)with lithium bis(trifluoromethanesulfonyl)imide(LiTFSI)covers the surface of each Li6.4La3Zr1.4Ta0.6O12(LLZTO)granules during the nebulization process,then forming flat solid electrolytes via layer-by-layer deposition.Characterized by the atomic force microscope,the obtained solid electrolytes achieve a homogenous dispersion of Young’s modulus and surface electric field.As a result,the as-prepared SPEs present high tensile strength of 7.1 MPa,high ionic conductivity of 1.86×10−4S·cm−1at room temperature,and wide electrochemical window up to 5.0 V,demonstrating increased mechanical strength and uniform lithium-ion migration channels for SPEs.Thanks to the as-prepared SPEs,the lithiumsymmetrical cells show a highly stable Li plating/stripping cycling for over 1,000 h at 0.1 mA·cm−2.The corresponding Li/LCoO2batteries also present good rate capability and excellent cyclic performance with capacity retention of 80%after 100 cycles at room temperature. 展开更多
关键词 solid polymer electrolytes spray drying homogenous dispersion solid lithium batteries polyvinylidene fluoride/Li6.4La3Zr1.4Ta0.6O12(PVDF/LLZTO) surface electric field
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A simple unilateral homogenous PhOLEDs with enhanced efficiency and reduced efficiency roll-off 认领 引用 被引量：2
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作者 Shaoqing ZHUANG Wenzhi ZHANG +1 位作者 Xiao YANG Lei WANG 《Frontiers of Optoelectronics》 CSCD 2013年第4期435-439,共5页
In this paper,highly efficient phosphorescent organic lighting emitting diodes(PhOELDs)with low efficiency roll-off are demonstrated by using a unilateral homogenous device structure with wide band-gap material 4,4... In this paper,highly efficient phosphorescent organic lighting emitting diodes(PhOELDs)with low efficiency roll-off are demonstrated by using a unilateral homogenous device structure with wide band-gap material 4,4',4"-tri(N-carbazolyl)-triphenylamine(TCTA)as hole transporting layer and emitting layer(EML).The opti-mized blue device exhibits a high power efficiency of 40 lm/W,external quantum efficiency of 19.2%and current efficiency of 37.7cd/A.More importantly,the device exhibits a low efficiency roll-off at 1000 cd/m^2.In addition,the white homogenous PhOLEDs only exhibits the efficiency roll-off 5.6%and 17.5%,corresponding to the brightness of 1000 and 5000cd/m^2 respectively.These interesting results demonstrate that the simple unilateral homogenous device structure is a promising way to enhance the device efficiency and reduce the efficiency roll-off. 展开更多
关键词 enhance efficiency efficiency roll-off uni-lateral homogenous structures
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Photochemical afterglow with ultrabright lanthanide luminescence for homogeneous immunoassay 认领 引用
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作者 Xiao Chen Chunling Li +2 位作者 Ming Xu Wei Feng Fuyou Li 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第4期1035-1042,I0002,共8页
Afterglow materials have drawn considerable attention for a long time due to their unique luminescence properties,among which lanthanide-doped persistent phosphors have been extensively investigated and even commercia... Afterglow materials have drawn considerable attention for a long time due to their unique luminescence properties,among which lanthanide-doped persistent phosphors have been extensively investigated and even commercialized.However,afterglow luminescence from lanthanides has been sporadically achieved in non-crystalline materials.Herein,ultrabright red afterglow in organic solution is observed to share an identical emission profile of an f-f transition Eu-complex.In this well-designed afterglow system,a sensitizer with singlet fission ability and zero-overlapped wavefunction between the lanthanide emitter was introduced,to implement effective photochemical reactions and energy transfer processes.The photochemical afterglow solution is applicable to wet-chemical procedure for the ondemand fabrication of functional nanoparticles with uniform size.Homogeneous immunoassay conformed to photochemical afterglow regime was performed with a detection limit of 0.5 pg/mL for interleukin-6.These results not only advance photochemical afterglow for optimal performance,but also pave the way for rational design of lanthanide luminescence materials with ultralong lifetime. 展开更多
关键词 Photochemical afterglow Lanthanide luminescence Singlet fission Rare earths Homogeneous immunoassay
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Interface damage mechanisms and homogeneity-dependent effects in layered composite coal-rock:A new perspective for mining-induced roof disaster prevention 认领 引用
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作者 YUE Wei-tao FENG Xiao-jun +3 位作者 WANG En-yuan ZHANG Qi-ming DING Zeng KONG Xiang-guo 《Journal of Central South University》 SCIE EI CAS CSCD 2026年第3期1260-1279,共20页
Stress represents a critical determinant of dynamic hazards in underground coal mining operations.Heterogeneous geological features substantially influence stress distribution and magnitude throughout mining environme... Stress represents a critical determinant of dynamic hazards in underground coal mining operations.Heterogeneous geological features substantially influence stress distribution and magnitude throughout mining environments.To investigate the mechanical evolution and failure mechanisms of heterogeneous stratified composite coal-rock(CCR)under mining-induced stresses,three-point bending tests(TPBT)and numerical simulations are conducted on CCR specimens with varying homogeneity indices.Results show a significant positive correlation between CCR fracture strength and the homogeneity index(φ).Higher φ values are associated with more uniform displacement discontinuity zones during the fracturing process.Initial loading is observed to induce compressive strain at the upper coal-rock interface(UI),while tensile strain predominated at both the lower interface(LI)and boundary(LB).Interface strain magnitudes followed the pattern LB>LI>UI,with stability inversely proportional to strain intensity.As φ increases,interfacial stability is reduced,damage severity is amplified,and the critical strain energy release rate is elevated.These variations are primarily governed by the homogeneity-dependent redistribution of particle zones and the downward migration of resistant interfaces.These findings enhance our understanding of fracture propagation in heterogeneous CCR under mining stresses,thereby contributing to improved hazard forecasting and control strategies in coal mine composite roof systems. 展开更多
关键词 interface damage mechanisms roof disaster layered composite coal-rock three-point bend tests homogeneity
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