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Tackling application limitations of high-safetyγ-butyrolactone electrolytes:Exploring mechanisms and proposing solutions

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Journal of Energy Chemistry 2024年第6期93卷 193-201,I0005页

作者： Haojun Wu Zhangyating Xie Guanjie Li Lei Zheng Zhiwei Zhao Jiarong He Yanbin Shen Jiahao hu Zhangquan Peng Guiming Zhong Lidan xing Weishan Li School of Chemistry South China Normal UniversityGuangzhou 510006GuangdongChina National and Local Joint Engineering Research Center of MPTES in High Energy and Safety LIBs Engineering Research Center of MTEES(Ministry of Education)Research Center of BMET(Guangdong Province)and Key Lab.of ETESPG(GHEI)South China Normal UniversityGuangzhou 510006GuangdongChina Laboratory of Advanced Spectroelectrochemistry and Li-ion Batteries Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina i-Lab CAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123JiangsuChina School of Chemical Engineering Faculty of SciencesEngineering and TechnologyThe University of AdelaideSA 5005Australia

Developing wide-temperature and high-safety lithium-ion batteries(LIBs)presents significant challenges attributed to the absence of suitable solvents possessing broad liquid range and non-flammability properties.γ-Butyrolactone(GBL)has emerged as a promising solvent;however,its incompatibility with graphite anode has hindered its *** limitation necessitates a comprehensive investigation into the underlying mechanisms and potential *** this study,we achieve a molecular-level understanding of the perplexing interphase formation process by employing in-situ spectroelectrochemical techniques and density function *** findings reveal that,even at high salt concentrations,GBL consistently occupies the primary Li^(+)solvation sheath,leading to extensive GBL decomposition and the formation of a high-impedance and inorganic-poor solid-electrolyte interphase(SEI)*** to manipulating solvation structures,our research demonstrates that the utilization of filmforming additives with higher reduction potential facilitates the pre-establishment of a robust SEI film on the graphite *** approach effectively inhibits GBL decomposition and significantly enhances the battery's *** study provides the first reported intrinsic understanding of the unique GBLgraphite incompatibility and offers valuable insights for the development of wide-temperature and high-safety LIBs.

关键词： γ-Butyrolactone/Graphite incompatibility Unique solvation structure SEI film Lithium-ion batteries

Cambricon-QR:a sparse and bitwise reproducible quantized training accelerator

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High Technology Letters 2024年第1期30卷 52-60页

作者：李楠 ZHAO yongwei ZHI Tian LIU Chang DU Zidong hu xing LI Wei ZHANG Xishan LI Ling SUN Guangzhong School of Computer Science and Technology University of Science and Technology of ChinaHefei 230026P.R.China State Key Laboratory of Processors Institute of Computing TechnologyChinese Academy of SciencesBeijing 100086P.R.China Cambricon Tech.Ltd Beijing 100191P.R.China Institute of Software Chinese Academy of SciencesBeijing 100086P.R.China

Quantized training has been proven to be a prominent method to achieve deep neural network training under limited computational *** uses low bit-width arithmetics with a proper scaling factor to achieve negligible accuracy ***-Q is the ASIC design proposed to efficiently support quantized training,and achieves significant performance ***,there are still two caveats in the ***,Cambricon-Q with different hardware specifications may lead to different numerical errors,resulting in non-reproducible behaviors which may become a major concern in critical ***,Cambricon-Q cannot leverage data sparsity,where considerable cycles could still be squeezed *** address the caveats,the acceleration core of Cambricon-Q is redesigned to support fine-grained irregular data *** new design not only enables acceleration on sparse data,but also enables performing local dynamic quantization by contiguous value ranges(which is hardware independent),instead of contiguous addresses(which is dependent on hardware factors).Experimental results show that the accuracy loss of the method still keeps negligible,and the accelerator achieves 1.61×performance improvement over Cambricon-Q,with about 10%energy increase.

关键词： quantized training sparse accelerator Cambricon-QR

Pd single atoms cooperate with S vacancies in ZnIn_(2)S_(4) nanosheets for photocatalytic pure-water splitting

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Science China Chemistry 2024年第3期67卷 855-861页

作者： Lin Sun huiping Peng Fei Xue Shangheng Liu Zhiwei hu Hongbo Geng Xiaozhi Liu Dong Su yong Xu Xiaoqing huang State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices Collaborative Innovation Center of Advanced Energy MaterialsSchool of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006China Max Planck Institute for Chemical Physics of Solids Nothnitzer Strasse 40Dresden 01187Germany School of Materials Engineering Changshu Institute of TechnologyChangshu 215500China Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of SciencesBeijing 100190China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China

Photocatalytic water splitting has emerged as a new frontier for converting solar energy to green H_(2) and value-added ***,great challenges still remain for developing efficient photocatalysts for pure water splitting without sacrificial *** this work,we demonstrate that doping hexagonal ZnIn_(2)S_(4)(ZIS) with Pd single atoms(Pd_(0.03)/ZIS) can serve as a highly efficient photocatalyst for pure water splitting to simultaneously produce H_(2) and H_(2)O_(2) without any sacrificial *** from aberration-corrected high-angle annular dark field scanning transmission electron microscopy,X-ray fine spectroscopy,insitu electron paramagnetic resonance and diffuse Fourier transform infrared spectroscopy reveal that doping ZIS with Pd single atoms facilitates the formation of S vacancies(S_(v)),where the photogenerated electrons can transfer to Pd single atoms,as a result of enhanced separation of electron-hole pairs and improved photocatalytic ***,Pd_(0.03)/ZIS displays a stoichiometric ratio of H_(2) and H_(2)O_(2) with the productivity of 1,037.9 and 1,021.4μmol g^(-1)h^(-1),respectively,which has largely outperformed pure ZIS and other reported catalysts for pure water *** work provides an efficient photocatalyst for water splitting to produce H_(2) and H_(2)O_(2),which may attract rapid interest in materials science,chemistry,and heterogeneous catalysis.

关键词： ZnIn_(2)S_(4) Pd single atom S vacancy pure water splitting H_(2)O_(2)

Patterns and drivers of avian taxonomic and phylogenetic beta diversity in China vary across geographical backgrounds and dispersal abilities

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Zoological Research 2024年第1期45卷 125-135页

作者： Jian-Chao Liang Zhi-Feng Ding Chun-Lin Li Yi-Ming hu Zhi-Xin Zhou Gan-Wen Lie Xiao-Nan Niu Wen-Bin huang hui-Jian hu xing-Feng Si Guangdong Key Laboratory of Animal Conservation and Resource Utilization Guangdong Public Laboratory of Wild Animal Conservation and UtilizationInstitute of ZoologyGuangdong Academy of SciencesGuangzhouGuangdong 510260China School of Resources and Environmental Engineering Anhui UniversityHefeiAnhui 230601China Guangdong Eco-Engineering Polytechnic GuangzhouGuangdong 510520China huizhou Institute of Forestry(huizhou Botanical Garden Management Service Center) HuizhouGuangdong 516001China Administration of National Nature Reserve for Marine Ecology of Guangdong Nanpeng Islands ShantouGuangdong 515900China Zhejiang Zhoushan Archipelago Observation and Research Station Institute of Eco-ChongmingZhejiang Tiantong Forest Ecosystem National Observation and Research StationSchool of Ecological and Environmental SciencesEast China Normal UniversityShanghai 200241China

Geographical background and dispersal ability may strongly influence assemblage dissimilarity;however,these aspects have generally been overlooked in previous large-scale beta diversity ***,we examined whether the patterns and drivers of taxonomic beta diversity(TBD)and phylogenetic beta diversity(PBD)of breeding birds in China vary across(1)regions on both sides of the hu Line,which demarcates China’s topographical,climatic,economic,and social patterns,and(2)species with different dispersal *** and PBD were calculated and partitioned into turnover and nestedness components using a moving window *** representing climate,habitat heterogeneity,and habitat quality were employed to evaluate the effects of environmental *** distance was considered to assess the impact of dispersal *** partitioning analysis was applied to assess the relative roles of these *** general,the values of TBD and PBD were high in mountainous areas and were largely determined by environmental ***,different dominant environmental filters on either side of the hu Line led to divergent beta diversity ***,climate-driven species turnover and habitat heterogeneity-related species nestedness dominated the regions east and west of the line,***,bird species with stronger dispersal ability were more susceptible to environmental filtering,resulting in more homogeneous *** results indicated that regions with distinctive geographical backgrounds may present different ecological factors that lead to divergent assemblage dissimilarity patterns,and dispersal ability determines the response of assemblages to these ecological *** a single universal explanation for the observed pattern without considering these aspects may lead to simplistic or incomplete ***,a comprehensive understanding of large-scale beta diversity patterns and effective pla

关键词： Beta diversity Environmental filtering Dispersal limitation hu Line Species dispersal ability Breeding birds

Enterococcus faecalis provides protection during scavenging in carrion crow (Corvus corone)

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Zoological Research 2024年第3期45卷 451-463页

作者： Bin hu Jia-Min Wang Qing-Xun Zhang Jing Xu Ya-Nan xing Bo Wang Shu-Yi Han Hong-Xuan He CAS Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Beijing Milu Ecological Research Center Beijing 102600China Beijing Capital International Airport Co. Ltd.Beijing 101300China

The gut microbiota significantly influences host physiology and provides essential ecosystem *** diet can affect the composition of the gut microbiota,the gut microbiota can also help the host adapt to specific dietary *** carrion crow(Corvus corone),an urban facultative scavenger bird,hosts an abundance of pathogens due to its scavenging *** this,carrion crows infrequently exhibit illness,a phenomenon related to their unique physiological *** present,however,the role of the gut microbiota remains incompletely *** this study,we performed a comparative analysis using 16S rRNA amplicon sequencing technology to assess colonic content in carrion crows and 16 other bird species with different diets in Beijing,*** findings revealed that the dominant gut microbiota in carrion crows was primarily composed of Proteobacteria(75.51%)and Firmicutes(22.37%).Significant differences were observed in the relative abundance of Enterococcus faecalis among groups,highlighting its potential as a biomarker of facultative scavenging behavior in carrion ***,*** isolated from carrion crows was transplanted into model mice to explore the protective effects of this bacterial community against Salmonella enterica *** showed that *** down-regulated the expression of pro-inflammatory cytokines tumor necrosis factor alpha(TNF-α),interferon gamma(IFN-γ),and interleukin 6(IL-6),prevented *** colonization,and regulated the composition of gut microbiota in mice,thereby modulating the host’s immune regulatory ***,*** exerts immunoregulatory and anti-pathogenic functions in carrion crows engaged in scavenging behavior,offering a representative case of how the gut microbiota contributes to the protection of hosts with specialized diets.

关键词： Carrion crow Facultative scavenger Gut microbiota Enterococcus faecalis 16S rRNA sequencing

Enhanced Precision Therapy of Multiple Myeloma Through Engineered Biomimetic Nanoparticles with Dual Targeting

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Engineering 2024年第5期36卷 178-192页

作者： Ruogu Qi Shanshan Wang Jiayi Yu Tianming Lu Zhiqiang Bi Weibo Liu Yuanyuan Guo yong Bian Jianliang Shen Xuesong Zhang Wenhao hu School of Medicine Nanjing University of Chinese MedicineNanjing 210023China Laboratory Animal Center Nanjing University of Chinese MedicineNanjing 210023China Key Laboratory of Carcinogenesis and Translational Research Ministry of Education/BeijingDepartment of Radiation OncologyBeijing Cancer HospitalBeijing 100142China Department of Orthopedics The Fourth Medical CenterThe Chinese People’s Liberation Army General HospitalBeijing 100853China State Key Laboratory of Ophthalmology Optometry and Vision ScienceSchool of Biomedical EngineeringWenzhou Medical UniversityWenzhou 325027China

Multiple myeloma(MM)is the second most prevalent hematological *** MM treatment strategies are hampered by systemic toxicity and suboptimal therapeutic *** study addressed these limitations through the development of a potent MM-targeting chemotherapy strategy,which capitalized on the high binding affinity of alendronate for hydroxyapatite in the bone matrix and the homologous targeting of myeloma cell membranes,termed T-PB@*** results from our investigations highlight the considerable bone affinity of T-PB@M,both in vitro and in ***,this material demonstrated a capability for drug release triggered by low pH ***,T-PB@M induced the generation of reactive oxygen species and triggered cell apoptosis through the poly(ADP-ribose)polymerase 1(PARP1)-Caspase-3-B-cell lymphoma-2(Bcl-2)pathway in MM ***,T-PB@M preferentially targeted bone-involved sites,thereby circumventing systemic toxic side effects and leading to prolonged survival of MM orthotopic ***,this designed target-MM nanocarrier presents a promising and potentially effective platform for the precise treatment of MM.

关键词： Multiple myeloma Bortezomib Drug delivery Dual targeting Controlled release

Radiotherapy enhances efficacy of PD-1 inhibitors in advanced hepatocellular carcinoma:A propensity-matched real-world study

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Chinese Medical Journal 2024年第11期137卷 1332-1342页

作者： Shujung Hsu Yencheng Chao yong hu Yang Zhang Weifeng Hong Yixing Chen Rongxin Chen Zhaochong Zeng Shisuo Du Department of Radiation Oncology Zhongshan HospitalFudan UniversityShanghai 200032China Department of Pulmonary Medicine Zhongshan HospitalFudan UniversityShanghai 200032China Department of Liver Cancer Institute Zhongshan HospitalFudan UniversityShanghai 200032China

Background:To address the need for immunotherapy in patients with advanced primary hepatocellular carcinoma(HCC),combination with radiotherapy(RT)has emerged as a promising *** preclinical studies,irradiated tumors released tumor antigens to synergistically increase the antitumor effect of ***,we investigated whether RT enhances the efficacy of anti-programmed death receptor-1(PD-1)inhibitors in advanced HCC in real-world ***:Between August 2018 and June 2021,172 patients with advanced primary HCC were enrolled in the tertiary center(Zhongshan Hospital of Fudan University);95 were treated with a combination of RT and the inhibitor of PD-1(RT-PD1 cohort),and 77 were administered anti-PD-1 therapy(PD1 cohort).The first cycle of PD-1 inhibitors was administered within 60 days or concurrently with *** score matching for bias reduction was used to evaluate the clinical ***:Among 71 propensity-matched pairs,median progression-free survival was 5.7 months in the RT-PD1 cohort vs.2.9 months in the PD1 cohort(P<0.001).Median overall survival was 20.9 months in the RT-PD1 cohort vs.11.2 months in the PD1 cohort(P=0.018).Compared with patients in the PD1 cohort,patients in the RT-PD1 cohort had significantly higher objective response rates(40.8%,29/71 vs.19.7%,14/71,P=0.006)and disease control rates(62.0%,44/71 vs.31.0%,22/71,P<0.001).The incidences of toxic effects were not significantly different between the two ***:RT plus anti-PD-1 therapy is well *** enhances the efficacy of anti-PD-1 therapy in patients with advanced primary HCC by improving survival outcomes without increased toxic effects.

关键词： Radiotherapy Immune checkpoint inhibitor Programmed cell death receptor-1 Hepatocellular carcinoma Propensity score matching Treatment outcome Adverse effects

New insights in nano-copper chromite catalyzing ultrafine AP:Evaluation of dispersity and mixing uniformity

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Defence Technology（防务技术） 2024年第2期32卷 120-133页

作者： yong Kou Peng Luo Lei Xiao Yanping Xin Guangpu Zhang Yubing hu Junqing Yang Hongxu Gao Fengqi Zhao Wei Jiang Gazi Hao National Special Superfine Powder Engineering Research Center of China School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing210094China Xi'an North huian Chemical Industry Co.Ltd Xi'an710302China Xi'an Modern Chemistry Research Institute Xi'an710065China

Improving the application of nanomaterials has always been a research hotspot in the field of energetic materials(EMs)due to their obvious catalytic effect on the EMs,especially the uniformly dispersed ***,few studies have reported the dispersion of *** this study,the dispersity and mixing uniformity of nano-CuCr_(2)O_(4)was evaluated based on the difference of solid UV light absorption between the nano-catalytic materials and *** nano-CuCr_(2)O_(4)/ultrafine AP composites with different dispersity of nano-CuCr_(2)O_(4)were prepared by manual grinding and mechanical grinding with different grinding strength and griding *** then,the absorbance of different samples at 212 nm was obtained by solid UV testing due to the high repeatability of the absorbance at 210-214 nm for three parallel experiments,and the dispersity of different samples was calculated through the established difference ***,the samples were characterized by XRD,IR,SEM,EDS,DSC and TG-MS,which confirmed that different mixing methods did not change the structure of the samples(XRD and IR),and the mixing uniformity improved with the increase of grinding strength and grinding time(SEM and EDS).The scientificity and feasibility of the difference equation were further verified by *** dispersity of nano-CuCr_(2)O_(4)exhibits a positive intrinsic relationship with its catalytic performance,and the uniformly dispersed nano-CuCr_(2)O_(4)significantly reduces the thermal decomposition temperature of ultrafine AP from 367.7 to 338.8℃.The TG-MS patterns show that the dispersed nano-CuCr_(2)O_(4)advanced the thermal decomposition process of ultrafine AP by about 700 s,especially in the high temperature decomposition stage,and the more concentrated energy release characteristic is beneficial to further enhance the energy performance of AP-based *** above conclusions show that the evaluation method of dispersity based on solid UV curves could pro

关键词： Nano-CuCr_(2)O_(4) Ultrafine AP Dispersity UVeVis diffuse reflectance spectroscopy Thermal decomposition

The Impact of Regular Diet Recovery on Postoperative Rehabilitation After Elective Cesarean Section

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Maternal-Fetal Medicine 2024年第2期6卷 78-83页

作者： Caihong hu Kuilin Fei Yuelan Liu Xiaoe Jiang Wenjing yong Weishe Zhang Ping Li Department of Obstetrics Xiangya HospitalCentral South UniversityChangsha 410008China hunan Engineering Research Center of Early Life Development and Disease Prevention Xiangya HospitalCentral South UniversityChangsha 410008China

Objective To determine the role of regular diet recovery after restoration of normal muscle strength of both lower extremities in promoting postoperative recovery in women undergoing elective cesarean *** This was a prospective observational cohort *** who underwent elective cesarean section at Xiangya Hospital,Central South University,from October 2022 to December 2022,were categorized into two groups based on the duration of postoperative fasting:the observation group resumed eating after regaining lower extremity muscle strength,while the control group adhered to traditional postoperative fasting guidelines,waiting 6 hours before *** outcomes included postoperative pain levels assessed by visual analog scale(VAS)pain scores and time to first *** characteristics,time to first lactation,hospital stay length,and patient satisfaction were also *** analysis was conducted using Student’s t test and Chi-squared test,with significance set at P0.05).Conclusion Food intake after restoration of lower extremity muscle

关键词： Obstetrics Cesarean section Early food intake