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Migration and transformation of Pb,Cu,and Zn during co-combustion of high-chlorine-alkaline coal and Si/Al dominated coal

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Journal of Environmental Sciences 2024年第7期141卷 26-39页

作者： Jiangze Luo Qiwei Yang Jianqiao Wang Boxiong Shen Zhuozhi Wang Qiqi shi zhong Zhao Chao Huang Jie Xu Tianjin Key Laboratory of Clean Energy and Pollution Control School of Energy and Environmental EngineeringHebei University of TechnologyTianjin 300103China School of Chemical Engineering Hebei University of TechnologyTianjin 300103China

Shaerhu(SEH)coal is abundant in Xinjiang,*** utilization of SEH suffers from severe ash deposition,slagging,and fouling problems due to its high-chlorine-alkaline *** co-combustion of high-alkaline coal and other type coals containing high Si/Al oxides has been proven to be a simple and effective method that will alleviate ash-related problems,but the risk of heavy metals(HMs)contamination in this process is ***,the volatilization rates and chemical speciation of Pb,Cu,and Zn in co-combusting SEH and a high Si/Al oxides coal,i.e.,Yuanbaoshan(YBS)coal were investigated in this *** results showed that the addition of SEH increased the volatilization rates of Pb,Cu,and Zn during the co-combustion at 800℃from 23.70%,23.97%,and 34.98%to 82.31%,30.01%,and 44.03%,respectively,and promoted the extractable state of Cu and *** addition,the interaction between SEH and YBS inhibited the formation of the Pb residue ***-EDS mapping results showed that compared to Zn and Cu,the signal intensity of Pb was extremely weak in regions where some of the Si and Al signal distributions *** DFT results indicated that the O atoms of the metakaolin(Al_(2)O_(3)·2SiO_(2))(001)surface were better bound to the Zn and Cu than Pb atoms after adsorption of the chlorinated *** results contribute to a better understanding of the effects of high-alkaline coal blending combustion on Pb,Cu,and Zn migration and transformation.

关键词： Heavy metals High-chlorine-alkaline coal Coal blending combustion Density functional theory

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Energy band modulation of N-doped rutile/anatase TiO_(2) photoanode promoting charge separation toward prominent photoelectrochemical performance

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Rare Metals 2024年第8期43卷 3784-3797页

作者： Juan Gao shi-Xuan Wang Jia-Le Deng ping-ping Wei Fu-Zhang Chen Ling-Cheng Zheng Yue-Qin Wang Yang Li Yin Liu Gang He School of Mechanics and Photoelectric Physics Anhui University of Science and TechnologyHuainan 232001China School of Materials Science and Engineering Anhui UniversityHefei230039China Tianneng Battery(Wuhu)Co. Ltd.Wuhu 241000China School of Materials Science and Engineering Anhui University of Science and TechnologyHuainan 232001China

To solve the problem of high photogenerated carrier recombination rate and low photoelectric conversion efficiency of TiO_(2)-based materials,a simple N-doped anatase/rutile TiO_(2) heterophase nanorod film was designed by a low-temperature hydrothermal method in this *** enhanced separation and transport of photogenerated charges were facilitated by the smaller contact barrier and appropriate band matching between anatase TiO_(2)nanoparticles and rutile TiO_(2) *** introduction of N doping in anatase TiO_(2) resulted in an upward shift of the valence band and a narrowing of the band gap,consequently enhancing the efficiency of visible light *** combination of the heterophase junction and N-doping exhibited a synergistic effect,effectively suppressing the recombination of photogenerated charges and enhancing the photoelectric conversion efficiency of the *** AM 1.5G irradiation,the photocurrent density(J)of the A-TO(N)@R-TONR photoanode reached2.19 mA·cm^(-2)(V_(RHE,1.23 eV)).Additionally,the incident photon-electron conversion efficiency(IPCE)and the charge injection efficiency(η)reached 81.4%and 51.6%at320 ***,the J,IPCE,andηvalues of the A-TO(N)@R-TONR photoanode were 2.96,2.1 and 3.2times those of pure R-TONR photoanode,*** work presents a rational strategy for designing efficient TiO_(2)-based photoanodes.

关键词： TiO_(2) Heterophase junction Photoanode

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M2 macrophage-related molecular subtypes and prognostic index for prostate cancer patients through integrating single-cell and bulk RNA sequencing analysis

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Genes & Diseases 2024年第4期11卷 131-133页

作者： Dechao Feng Xu shi Dengxiong Li Ruicheng Wu Jie Wang Wuran Wei ping Han Department of Urology Institute of UrologyWest China HospitalSichuan UniversityChengduSichuan 610041China

Prostate cancer(PCa)is considered as an age-related disease and accounts for the most prevalence of urinary malignancies in men.1 We previously analyzed the cellular landscape of tumor microenvironment in PCa patients,where we found that cancer-related fibroblasts might play an important role in tumorigenesis and the development of PCa and tumor-associated macrophage(TAM)could function synergistically with them.2 Thus,we further integrated single-cell and bulk RNA sequencing with meta-analysis to specify the prognostic effect of TAM on PCa and construct molecular subgroups and predictive index to guide clinical practice.

关键词： patients macrophage cancer

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Hydrogen bond producers in powerful protic ionic liquids for enhancing dissolution of natural cellulose

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SusMat 2024年第5期4卷 189-201页

作者： shi-Peng Chen Dan-Yang Zhao Jin-Long Zhu Jing Wang Gan-Ji zhong Hua-Dong Huang zhong-Ming Li College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengduChina

The manipulation of hydrogen bonding within protic ionic liquids is conducive to conquering the robust hydrogen bonding interactions in cellulose for its effective dissolution,but it is a great challenge to establish the delicate bal-ance of hydrogen bonding network between solvent and ***,we proposed the concept of“hydrogen bond producers”for urea molecules in 1,1,3,3-tetramethylguanidinium methoxyacetate acid([TMGH][MAA])to enhance the dissolution of *** optimization of physicochemical properties for[TMGH][MAA]solvent as a function of urea concentration revealed a remark-able increase in cellulose solubility from 13%to 17%(w/w)by adding only 0.25 wt%urea,highlighting the efficiency of[TMGH][MAA]as a power-ful solvent for the dissolution of *** experimental and simulation results verified that the significant improvement on dissolution of cellulose was attributed to the hydrogen bonding interaction of urea molecules with ion pairs and part of free ions,reducing the interference with the active ions bonded to ***,the considerable enhancement on compre-hensive properties of regenerated cellulose films demonstrated the effectiveness of[TMGH][MAA]/urea *** concept of“hydrogen bond producers”presented here opens a new avenue for significantly enhancing the dissolu-tion of natural cellulose,promoting the sustainable development in large-scale processing of cellulose.

关键词： cellulose dissolution hydrogen bond producers protic ionic liquids

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Hongjin Xiaojie Capsule,a Chinese patent medicine,for treating moderate to severe cyclical breast pain:A single-blind randomized controlled trial

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Journal of Integrative Medicine 2024年第5期22卷 552-560页

作者： Qiong Zhang Ying-yi Fan Xue-qing Wu Yan-dan Huo Chun-hui Wang shi-bing Liang Ting Wang Rong zhong Xuan Wang Bao-yong Lai Xiao-hua Pei Jian-ping Liu Graduate School Beijing University of Chinese MedicineBeijing 100029China Department of Breast Beijing University of Chinese Medicine Third Affiliated HospitalBeijing 100029China Department of Breast Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghai 200021China Department of Breast Sichuan Second Hospital of Traditional Chinese MedicineChengdu 610014Sichuan ProvinceChina Department of Breast Xiamen HospitalBeijing University of Chinese MedicineXiamen 361015Fujian ProvinceChina Center for Evidence-Based Chinese Medicine Beijing University of Chinese MedicineBeijing 100029China

Background Moderate to severe breast pain has major effects on the quality of life for *** Chinese medicines are widely used in the treatment of breast pain due to their stable dosage form and good *** To evaluate the beneficial effects and safety of Hongjin Xiaojie Capsule(HJXJC),a Chinese patent medicine,for the treatment of cyclical breast ***,setting,participants and intervention This is a multicenter,single-blind randomized controlled trial conducted in 3 medical centers in China from 2019 to *** with moderate to severe cyclic breast pain were randomly divided into the intervention group(who took HJXJC,four capsules per dose,three times a day for 12 weeks)and the control group(waiting for the treatment)in a 1:1 *** outcome measures The primary outcome was pain duration,and the patients recorded measurements at baseline and at the end of weeks 4,8,12 and 16 on a patient log *** The full analysis set(FAS)population included 298 participants(intervention group,n=150;control group,n=148),while the per-protocol analysis set(PPS)included 274 *** 12 weeks,the duration of breast pain was significantly shorter in the intervention group(FAS:mean difference,–6.69;95%CI,–7.58 to–5.80;P0.05).At weeks 8 and 12,th

关键词： Hongjin Xiaojie Capsule Cyclical breast pain Randomized controlled trial Traditional Chinese medicine

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Identification of reservoir types in deep carbonates based on mixedkernel machine learning using geophysical logging data

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Petroleum Science 2024年第3期21卷 1632-1648页

作者： Jin-Xiong shi Xiang-Yuan Zhao Lian-Bo Zeng Yun-Zhao Zhang Zheng-ping Zhu Shao-Qun Dong Key Laboratory of Exploration Technologies for Oil and Gas Resources of the Ministry of Education Yangtze UniversityWuhan4310HubeiChina School of Geosciences Yangtze UniversityWuhan430100HubeiChina College of Geosciences China University of Petroleum(Beijing)Beijing102249China Petroleum Exploration and Production Research Institute of SINOPEC Beijing100083China School of Earth Sciences and Engineering Xi'an Shiyou UniversityXi'an 710065ShaanxiChina

Identification of reservoir types in deep carbonates has always been a great challenge due to complex logging responses caused by the heterogeneous scale and distribution of storage *** cross-plot analysis and empirical formula methods for identifying reservoir types using geophysical logging data have high uncertainty and low efficiency,which cannot accurately reflect the nonlinear relationship between reservoir types and logging ***,the kernel Fisher discriminant analysis(KFD),a kernel-based machine learning technique,attracts attention in many fields because of its strong nonlinear processing ***,the overall performance of KFD model may be limited as a single kernel function cannot simultaneously extrapolate and interpolate well,especially for highly complex data *** address this issue,in this study,a mixed kernel Fisher discriminant analysis(MKFD)model was established and applied to identify reservoir types of the deep Sinian carbonates in central Sichuan Basin,*** MKFD model was trained and tested with 453 datasets from 7 coring wells,utilizing GR,CAL,DEN,AC,CNL and RT logs as input *** particle swarm optimization(PSO)was adopted for hyper-parameter optimization of MKFD *** evaluate the model performance,prediction results of MKFD were compared with those of basic-kernel based KFD,RF and SVM ***,the built MKFD model was applied in a blind well test,and a variable importance analysis was *** comparison and blind test results demonstrated that MKFD outperformed traditional KFD,RF and SVM in the identification of reservoir types,which provided higher accuracy and stronger *** MKFD can therefore be a reliable method for identifying reservoir types of deep carbonates.

关键词： Reservoir type identification Geophysical logging data Kernel Fisher discriminantanalysis Mixedkernel function Deep carbonates

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Features and formulae of sediment incipient motion in vegetated flow environment

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Journal of Hydrodynamics 2024年第2期36卷 331-339页

作者： Yu-xuan Xu Wei-jie Wang shi-bao Zhang Han-qing Zhao Xue-kai Chen Hai-ping Zhang School of Water Conservancy North China University of Water Resources and Electric PowerZhengzhou450045China State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower ResearchBeijing100038China China Three Gorges Corporation Wuhan430010China

Aquatic vegetation is a vital component of natural river ecosystems,playing a crucial role in maintaining ecological balance,providing habitat and improving water ***,the presence of vegetation results in increased resistance in vegetated channels compared with non-vegetated channels,rendering traditional sediment movement predictions inadequate for the ***,the concept of a vegetation influence factor,denoted by CDah,has been proposed by previous researchers to represent the effect of vegetation on sediment movement in *** this study,we focus on exploring the vegetation resistance coefficient(CD)among the vegetation influence factors,evaluating two different calculation methods for vegetation resistance coefficient,and presenting two expressions through genetic algorithm analysis to predict the incipient flow velocity of sediment in vegetated *** predicted values from the new formulae show excellent agreement with measured data,highlighting the high accuracy of the proposed methods in predicting the incipient flow velocity of *** results provide a solid theoretical basis for understanding the influence of aquatic vegetation on sediment particle movement.

关键词： Vegetation flow vegetation resistance coefficient genetic algorithm sediment initiation

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Ethanol-assisted synthesis of a Ni single-atom catalyst with poriferous 3D framework for efficient cascade CO_(2)electroreduction

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Rare Metals 2024年第9期43卷 4612-4619页

作者： Feng Wu shi-Qi Wang Sebastian Kunze Xiao-ping Gao Pei-Qun Yin Yu-En Wu Division of Life Sciences and Medicine Department of EndocrinologySchool of Chemistry and Materials ScienceThe First Affiliated Hospital of USTCUniversity of Science and Technology of ChinaHefei 230026China Department of Chemistry Seoul National UniversitySeoul 08826South Korea School of Biomedical Engineering Anhui Medical UniversityHefei 230032China

The electroreduction of carbon dioxide to generate multicarbon products is significant for achieving a carbon-neutral ***,the selectivity for multi-carbon products faces several challenges,such as the intricate nature of the multistep hydrogenation processes,slow reaction kinetics and the bicarbonate precipitate issue caused by alkaline *** factors hinder the extensive utilization of this ***,we successfully developed and implemented a tandem electrolyzer cascade to separate and optimize the complex elementary reactions involved in the process of multi-carbon production.

关键词： reaction. synthesis catalyst

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Double casing warhead with sandwiched charge:The axial distribution of fragments velocities

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Defence Technology（防务技术） 2024年第4期34卷 201-216页

作者： ping Ye Yongxiang Dong Qitian Sun Peizhuo shi Wang Yao Yongnan Li Yujing Li Mingze Li State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing 100081China

The double casing warhead with sandwiched charge is a novel fragmentation warhead that can produce two groups of fragments with different velocity,and the previous work has presented a calculation formula to determine the maximum fragment *** current work builds on the published formula to further develop a formula for calculating the axial distribution characteristics of the fragment *** this type of warhead,the simulation of the dispersion characteristics of the detonation products at different positions shows that the detonation products at the ends have a much larger axial velocity than those in the middle,and the detonation products have a greater axial dispersion velocity when they are closer to the central *** loading process and the fragment velocity vary with the axial position for both casing layers,and the total velocity of the fragments is the vector sum of the radial velocity and the axial *** the same axial position,the acceleration time of the inner casing is greater than that of the outer *** the same casing,the fragments generated at the ends have a longer acceleration time than the fragments from the *** proposed formula is validated with the X-ray radiography results of the four warheads previously tested experimentally and the 3D smoothedparticle hydrodynamics numerical simulation results of several series of new warheads with different *** formula can accurately and reliably calculate the fragment velocity when the lengthto-diameter ratio of the charge is greater than 1.5 and the thickness of the casing is less than 20%its inner *** work thus provides a key reference for the theoretical analysis and the design of warheads with multiple casings.

关键词： Double casing warhead Sandwiched charge Fragment velocity Rarefaction wave Gurney formula Explosive loading

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Amphoteric Supramolecular Nanofiber Separator for High-Performance Sodium-Ion Batteries

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Energy & Environmental Materials 2024年第5期7卷 118-125页

作者： Yuping Zhang Hongzhi Zheng Xing Tong Hao Zhuo Wu Yang Yuling Chen Ge shi Zehong Chen Linxin zhong Xinwen Peng State Key Laboratory of Pulp and Paper Engineering South China University of Technology Department of Chemistry UBC Faculty of Science Vancouver Campus Department of Mechanical Engineering National University of Singapore

The separator is an essential component of sodium-ion batteries （SIBs） to determine their electrochemical performances. However, the separator with high mechanical strength, good electrolyte wettability and excellent electrochemical performance remains an open challenge. Herein, a new separator consisting of amphoteric nanofibers with abundant functional groups was fabricated through supramolecular assembly of natural polymers for SIB. The uniform nanoporous structure, remarkable mechanical properties and abundant functional groups （e.g.-COOH,-NH2and-OH）endow the separator with lower dissolution activation energy and higher ion migration numbers. These metrics enable the separator to lower the barrier for desolvation of Na+, accelerate the migration of Na+, and generate more stable solid electrolyte interphase （SEI） and cathode electrolyte interphase（CEI）. The battery assembled with the amphoteric nanofiber separator shows higher specific capacity and better stability than that assembled with glass fiber （GF） separator.

关键词： amphoteric nanofiber self-assembly Separator sodium-ion batteries

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