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FPS_P/N:A two-dimensional mass spectrometry utilization program with precursor ion determination for accurately distinguishing anthocyanin from other flavonoids 认领 引用
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作者 Ya-Hui Ge LiLi Zhang +5 位作者 Shilin Gong Wen Miao Li Zhang Weibin Bai Jian-Lin Wu Na Li 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2026年第1期232-241,共10页
Anthocyanins,a unique class of flavonoids with flavylium skeletons,are valued for antioxidant properties.However,distinguishing anthocyanins from co-existing flavonoids using conventional automated tandem mass spectro... Anthocyanins,a unique class of flavonoids with flavylium skeletons,are valued for antioxidant properties.However,distinguishing anthocyanins from co-existing flavonoids using conventional automated tandem mass spectrometry(MS)analysis methods remains challenging.This difficulty arises from low specificity of MS features and confusion of precursor ions,leading to substantial false confidence annotations.To address it,we have developed the strategy of positive(POS)-to-negative(NEG)primary MS(MS1)intensity ratios detecting with fast polarity switching(FPS),termed FPS-POS/NEG,to determine their specific precursor ions.Moreover,we developed an automated program leveraging FPS-POS/NEG strategy(FPS_P/N)streamlining screening candidate pool with molecular networking analysis from MS1 and secondary MS(MS2),determining precursor ions with FPS-POS/NEG,and annotation with MS2.This program enables simultaneous capture of positive and negative signals in a single run and accurate determination of precursor ions for anthocyanins(5.98–9.28)and other flavonoids(−2.52 to 2.08).The underlying mechanisms were elucidated by difference in protonated and deprotonated Gibbs free energy(ΔG)and in-source fragmentation(ISF).FPS-POS/NEG strategy was validated across a broad pH range(0.1%–2%formic acid(FA))and demonstrated high alignment accuracy(retention time difference,0.011 min)and consistency(relative standard deviation(RSD),0.38%–4.62%).Using blueberry,20 anthocyanins(nonacylated and acylated)and 14 additional flavonoids were annotated.With two-dimensional integration of positive and negative MS1intensities with intensity ratios,FPS_P/N program provides a novel way to identify anthocyanins from other flavonoids.We anticipate this innovative method will enhance the high-throughput qualification of anthocyanins and other flavonoids in complex samples. 展开更多
关键词 Anthocyanins Flavonoids Precursor ion determination High-throughput metabolomics analysis Fast polarity switching
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Effectiveness and cost-effectiveness of risk-adapted colorectal cancer screening:a randomized controlled trial and modeling analysis 认领 引用
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作者 Hong-Da Chen Bin Lu +19 位作者 Ju-Fang Shi Yue-Yang Zhou Ling-Bin Du Xian-Zhen Liao Dong-Hua Wei Dong Dong Yi Gao Chen Zhu Rong-Biao Ying Wei-Fang Zheng Shi-Peng Yan Hai-Fan Xiao Juan Zhang Yun-Xin Kong Fu-Rong Li Na Li Jia-Hui Luo Chen-Yu Luo Hermann Brenner Min Dai 《Military Medical Research》 SCIE CAS CSCD 2026年第6期881-893,共13页
Background:Risk-adapted colorectal cancer (CRC) screening has the potential to balance effectiveness with resource demands,yet evidence comparing it with established methods remains limited.This study aims to compare ... Background:Risk-adapted colorectal cancer (CRC) screening has the potential to balance effectiveness with resource demands,yet evidence comparing it with established methods remains limited.This study aims to compare outcomes of risk-adapted CRC screening with colonoscopy and fecal immunochemical test (FIT) strategies.Methods:We adopted a hybrid methodology combining real-world data from a population-based CRC screening randomized controlled trial (TARGET-C) with projections from a validated Markov-based microsimulation model(MIMIC-CRC).The TARGET-C trial enrolled 19,582 participants aged 50–74 years from 6 centers in China,randomized in a 1:2:2 ratio into three groups.After applying the exclusion criteria,the final analysis included 3883 participants in the one-time colonoscopy group,7793 in the annual FIT group,and 7697 in the risk-adapted screening group.In the latter group,screening allocation was determined by a composite risk score incorporating age,sex,family history of CRC,smoking status,and body mass index,with high-risk participants referred for colonoscopy and low-risk participants for FIT.The primary outcome was detection rates of advanced neoplasm (CRC and advanced adenoma)over 4 rounds.Secondary outcomes included screening participation,colonoscopy demand,and costs from a societal perspective.Long-term effectiveness and cost-effectiveness were modeled over 15 years using MIMIC-CRC.Results:Across 4 rounds,overall participation rates (attending at least one screening round) were 42.3%(colonoscopy),99.8%(FIT),and 92.5%(risk-adapted).Detection rates of advanced neoplasms were 2.8%,2.3%,and 2.6%,respectively,with no significant differences (P>0.05).Colonoscopies needed to detect 1 advanced neoplasm were 15.4,7.9,and 9.3,respectively.From a societal perspective,the cost for detecting 1 advanced neoplasm was 15,341,21,754,and 24,300Chinese Yuan,respectively.Over 15 years,risk-adapted screening reduced incidence by 16.7%and mortality by 21.5%compared with no screening,slightly less effective than colonoscopy (24.6%and 24.8%,respectively).Under observed real-world adherence,colonoscopy was the most cost-effective;under perfect full adherence,risk-adapted screening was the most cost-effective.Conclusions:In this population-based CRC screening trial,risk-adapted screening,colonoscopy,and FIT demonstrated comparable effectiveness,but differed in participation rates,resource utilization,and cost-effectiveness.Risk-adapted screening could serve as a complementary approach to established strategies,particularly when health resources are limited. 展开更多
关键词 Colorectal cancer(CRC) Screening Risk-adapted screening Randomized controlled trial Cost-effectiveness
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Highly Elastic Composite Aerogel based on Functionalized Cotton Fibers for Strain Sensing at Cryogenic Temperature 认领 引用
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作者 Meng Li Gui-Wen Huang +3 位作者 Na Li Yu Liu Si-Zhe Li Yong Huang 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第3期706-718,I0011,共13页
With the development of electronic technologies,piezoresistive sensors have attracted increasing attention.Among them,aerogels with high elasticity,as a type of three-dimensional porous material,are widely used in the... With the development of electronic technologies,piezoresistive sensors have attracted increasing attention.Among them,aerogels with high elasticity,as a type of three-dimensional porous material,are widely used in the field of piezoresistive sensors.Nowadays,with the extension of science and technology areas,fields involving low-temperature environments have emerged,which has led to an increasing demand for piezoresistive sensors that can serve at cryogenic temperatures.However,most studies on aerogels have only focused on their sensing performance at room temperature,and there is a lack of research on aerogel sensors that can work at low temperatures.In this work,piezoresistive sensors based on cotton fibers were proposed for applications at 77 K.As one of the most important natural polymers,cotton fibers have the ability to maintain elasticity at very low temperatures.Cotton fiber-based aerogels with high elasticity and cyclic stability were obtained by controlling the freeze-casting parameters and size distribution of cotton fibers,and they showed excellent pressure sensing properties,including a wide sensing range and remarkable long-term stability.This study bridges the gap in cryogenic sensing materials and provides insights into microstructure-property relationships,advancing applications in aerospace and cryogenic engineering. 展开更多
关键词 Cotton fiber Aerogel Strain sensor Low temperature
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Dietary intervention with Lycium barbarum polysaccharide and quinoa ultrafine powder ameliorates lipid metabolism in nonalcoholic fatty liver disease by regulating gut microbiota and activating AMPK/SREBP-1C/SCD-1 signaling 认领 引用 被引量：2
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作者 Hong Lin Wei Gong +4 位作者 Yuxin Zhao Junyu Lan Huimin Cui Na Li Jianjun Yang 《Food Science and Human Wellness》 SCIE CAS CSCD 2026年第1期202-218,共17页
Changes in intestinal microecology play a crucial role in the pathogenesis and progression of metabolic diseases.Lycium barbarum polysaccharide(LBP)and quinoa ultrafine powder diet is a promising sources of prebiotics... Changes in intestinal microecology play a crucial role in the pathogenesis and progression of metabolic diseases.Lycium barbarum polysaccharide(LBP)and quinoa ultrafine powder diet is a promising sources of prebiotics.However,the potential synergistic effects of combining them as a microbiota-targeted dietary supplement to mitigate lipid accumulation in nonalcoholic fatty liver disease(NAFLD)remain unclear.Our study aims to provide evidence for the application foodutrient synergy interventions in NAFLD management,and also to support the clarification of these mechanisms.Following 12 weeks of a high-fat diet(HFD)-inducing NAFLD and an 11-week intervention in rats,the combination of LBP and quinoa ultrafine powder significantly decreased hepatocyte lipid accumulation and improved lipid metabolism disorders compared with those using either LBP or quinoa ultrafine powder alone.The combination increased beneficial intestinal microbiota,such as Lactobacillus acidophilus,Roseburia,Ruminococcus 2,and Prevotella,promoting the production of short-chain fatty acids,notably butyric acid,and then activated AMP-activated protein kinase/sterol regulatory element-binding protein 1C/stearoyl-CoA desaturase 1(AMPK/SREBP-1C/SCD-1)signaling.Combining LBP with quinoa ultrafine powder is a promising microbiota-targeted dietary supplement for ameliorating lipid disorders in NAFLD. 展开更多
关键词 Nonalcoholic fatty liver disease Lycium barbarum polysaccharide Quinoa Gut microbiota Short-chain fatty acid
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Centralized PV Coordination Control Strategy for Unbalanced LV Distribution Networks Based on Sensitivity Coefficient Weights 认领 引用
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作者 Xuming Hu Nan Hu +3 位作者 Na Li Xinsong Zhang Xiaocen Xue Xiuyong Yu 《Energy Engineering》 EI 2026年第3期391-410,共20页
The dense integration of residential distributed photovoltaic(PV)systems into three-phase,four-wire low-voltage(LV)distribution networks results in reverse power flow and three-phase imbalance,leading to voltage viola... The dense integration of residential distributed photovoltaic(PV)systems into three-phase,four-wire low-voltage(LV)distribution networks results in reverse power flow and three-phase imbalance,leading to voltage violations that hinder the growth of rural distributed PV systems.Traditional voltage droop-based control methods regulate PV power output solely based on local voltage measurements at the point of PV connection.Due to a lack of global coordination and optimization,their efficiency is often subpar.This paper presents a centralized coordinated activeeactive power control strategy for PV inverters in rural LV distribution feeders with high PV penetration.The strategy optimizes residential PV inverter reactive and active power control to enhance voltage quality.It uses sensitivity coefficients derived from the inverse Jacobian matrix to assign adjustment weights to individual PV units and iteratively optimize their power outputs.The control sequence prioritizes reactive power increases;if the coefficients are below average or the inverters reach capacity,active power is curtailed until voltage issues are resolved.A simulation based on a real 37-node rural distribution network shows that the proposed method significantly reduces PV curtailment.Typical daily results indicate a curtailment rate of 1.47%,which is significantly lower than the 15.4%observed with the voltage droop-based control method.The total daily PV power output(measured every 15 min)increases from 5.55 to 6.41 MW,improving PV hosting capacity. 展开更多
关键词 Low-voltage distribution network PV inverter voltage violation centralized iterative optimization control curtailment rate
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Ultralight and Anisotropic Heterocyclic Para-aramid Nanofiber/Reduced Graphene Oxide Composite Aerogel for Efficient Thermal Insulation and Flame Retardancy 认领 引用 被引量：2
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作者 Wen-Wen Wu Jian-Xun Shang +3 位作者 Na Li Yan Wang Jun-Rong Yu Zu-Ming Hu 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2025年第1期141-152,I0011,共12页
The demand for anisotropic aerogels with excellent comprehensive properties in cutting-edge fields such as aerospace is growing.Based on the above background,a novel heterocyclic para-aramid nanofibereduced graphene o... The demand for anisotropic aerogels with excellent comprehensive properties in cutting-edge fields such as aerospace is growing.Based on the above background,a novel heterocyclic para-aramid nanofibereduced graphene oxide(HPANGO)composite aerogel was prepared by combining electrospinning and unidirectional freeze-drying.The anisotropic HPANGO composite aerogel exhibited a honeycomb morphology in the direction perpendicular to the growth of ice crystals,and a through-well structure of directed microchannels in the direction parallel to the temperature gradient.By varying the mass ratio of HPANGO,a composite aerogel with an ultra-low density of 5.34-7.81 mg·cm-3 and an ultra-high porosity of 98%-99%was obtained.Benefiting from the anisotropic structure,the radial and axial thermal conductivities of HPANGO-3 composite aerogel were 29.37 and 44.35 mW·m-1·K-1,respectively.A combination of software simulation and experiments was used to analyze the effect of anisotropic structures on the thermal insulation properties of aerogels.Moreover,due to the intrinsic self-extinguishing properties of heterocyclic para-aramid and the protection of the graphene carbon layer,the composite aerogel also exhibits excellent flame retardancy properties,and its total heat release rate(THR)was only 5.8 kJ·g-1,which is far superior to many reported aerogels.Therefore,ultralight anisotropic HPANGO composite aerogels with excellent high-temperature thermal insulation and flame retardancy properties have broad application prospects in complex environments such as aerospace. 展开更多
关键词 Heterocyclic para-aramid nanofiber Reduced graphene oxide Anisotropy Thermal insulation Flame retardancy
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First isolation and genomic characterization of a novel inter-genotype recombinant feline calicivirus from domestic cats:Implications for viral evolution 认领 引用 被引量：1
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作者 Xiaomei Tan LiangLiang Lin +9 位作者 Qi Zhang Na Li Ningning Dong Shishi Wang Wenqi Zhu Maoqing Luo Shuaisai Pang Yanzhao Xu Guangqing Liu Chunchun Meng 《Virologica Sinica》 SCIE CAS CSCD 2025年第4期672-675,共4页
Dear editor,As of 2023,the domestic cat population in China reached 65 million,surpassing dogs to become the most numerous companion animal in the country.Feline calicivirus(FCV)infection,one of the three most prevale... Dear editor,As of 2023,the domestic cat population in China reached 65 million,surpassing dogs to become the most numerous companion animal in the country.Feline calicivirus(FCV)infection,one of the three most prevalent infectious diseases in cats,poses a severe threat to feline health.FCV,classified under the Caliciviridae family(genus Vesivirus). 展开更多
关键词 domestic cats genomic characterization companion animal viral evolution novel inter genotype recombinant feline calicivirus
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Bidirectional regulation of the cyclic guanosine monophosphateadenosine monophosphate synthase-stimulator of interferon gene pathway and its impact on hepatocellular carcinoma 认领 引用 被引量：1
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作者 Ai-Yu Nie Zhong-Hui Xiao +4 位作者 Jia-Li Deng Na Li Li-Yuan Hao Sheng-Hao Li Xiao-Yu Hu 《World Journal of Gastrointestinal Oncology》 SCIE 2025年第2期246-261,共16页
BACKGROUND Hepatocellular carcinoma(HCC)ranks as the fourth leading cause of cancerrelated deaths in China,and the treatment options are limited.The cyclic guanosine monophosphate-adenosine monophosphate synthase(cGAS... BACKGROUND Hepatocellular carcinoma(HCC)ranks as the fourth leading cause of cancerrelated deaths in China,and the treatment options are limited.The cyclic guanosine monophosphate-adenosine monophosphate synthase(cGAS)activates the stimulator of interferon gene(STING)signaling pathway as a crucial immune response pathway in the cytoplasm,which detects cytoplasmic DNA to regulate innate and adaptive immune responses.As a potential therapeutic target,cGASSTING pathway markedly inhibits tumor cell proliferation and metastasis,with its activation being particularly relevant in HCC.However,prolonged pathway activation may lead to an immunosuppressive tumor microenvironment,which fostering the invasion or metastasis of liver tumor cells.AIM To investigate the dual-regulation mechanism of cGAS-STING in HCC.METHODS This review was conducted according to the PRISMA guidelines.The study conducted a comprehensive search for articles related to HCC on PubMed and Web of Science databases.Through rigorous screening and meticulous analysis of the retrieved literature,the research aimed to summarize and elucidate the impact of the cGAS-STING pathway on HCC tumors.RESULTS All authors collaboratively selected studies for inclusion,extracted data,and the initial search of online databases yielded 1445 studies.After removing duplicates,remaining 964 records were screened.Ultimately,55 articles met the inclusion criteria and were included in this review.CONCLUSION Acute inflammation can have a few inhibitory effects on cancer,while chronic inflammation generally promotes its progression.Extended cGAS-STING pathway activation will result in a suppressive tumor microenvironment. 展开更多
关键词 Hepatocellular carcinoma Cyclic guanosine monophosphate-adenosine monophosphate synthase-stimulator of interferon gene Interferon genes The metastasis of a tumor Immunology
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Interface-engineered Ionically Conductive Polyoxometalate-based Hydrogels with High Stretchability and Notch-insensitivity for Wearable Sensors 认领 引用 被引量：1
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作者 Xiao-Jiao Shi Yu-Bin Zhang +8 位作者 Na Li Yu-Xuan Qiao Ya Liang Gong-Kuo Yu Ai-Hong Su Ze-Cheng Song Dan-Dan Song Ti-Feng Jiao Zhi-Hui Qin 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第6期1767-1779,I0013,共13页
The rapid advancement of wearable sensors necessitates ionically conductive hydrogels that simultaneously exhibit high stretchability,damage tolerance,and reliable adhesion.However,achieving these properties in a sing... The rapid advancement of wearable sensors necessitates ionically conductive hydrogels that simultaneously exhibit high stretchability,damage tolerance,and reliable adhesion.However,achieving these properties in a single material remains a significant challenge.Herein,we report an ionically conductive polyoxometalate(POM)-based hydrogel(PAA/L-arg@SIW)fabricated by incorporating L-arginine(L-arg)-modified silicotungstic acid nanocomplexes(L-arg@SIW)into a poly(acrylic acid)(PAA)network as a multifunctional dynamic crosslinker.Strong electrostatic interactions and hydrogen bonding between rigid L-arg@SIW nanoclusters and flexible PAA chains generate a three-dimensional hard-soft synergistic network,in which dynamic crosslinks preferentially rupture and re-form under mechanical loading,thereby dissipating energy and suppressing crack propagation.Consequently,the hydrogel exhibits exceptional stretchability(fracture strain>1500%),high toughness(1483kJ/m3),outstanding crack resistance(fracture energy up to 6.82 kJ/m2),and high ionic conductivity(0.15 S/m),along with robust adhesion to diverse substrates.Hydrogel-based sensors demonstrate high strain sensitivity(gauge factor(GF)=8.06),fast response,and excellent cyclic stability,enabling reliable monitoring of human motion and high-fidelity acquisition of electrocardiogram(ECG)and electromyogram(EMG)signals.This study presents an effective strategy for constructing high-performance ionically conductive hydrogels for wearable sensing applications. 展开更多
关键词 Hydrogel High stretchability Notch-insensitivity Self-adhesion Wearable sensor
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Flexible graphene–nickel thiophosphate hybrids enabling fast kinetics and ultrahigh capacity for potassium-ion storage 认领 引用
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作者 Hu Wu Wei Wang +10 位作者 Wan-Dong Li Long Li Na Li Ming Xu Xu Li Ting Gao Huan Wang Amr M.Abdelkader Shu-Jiang Ding Kai Xi Guo-Xin Gao 《Rare Metals》 SCIE EI CAS CSCD 2025年第12期10007-10019,共13页
Exploring high-performance electrode materials are indispensable for the commercialization of potassiumion batteries(PIBs).Nickel thiophosphate(NPS),a representative ternary metal thiophosphate,holds great promise as ... Exploring high-performance electrode materials are indispensable for the commercialization of potassiumion batteries(PIBs).Nickel thiophosphate(NPS),a representative ternary metal thiophosphate,holds great promise as an anode due to its high theoretical capacity and distinctive layered structure,yet still facing critical challenges such as rapid capacity decay and sluggish rate performance.Herein,we developed a flexible,self-supporting composite film anode by integrating high-purity NPS nanosheets within a three-dimensional(3D) conductive scaffold composed of nitrogen-doped graphene(NG) and single-wall carbon nanotube(SWNT) via simple vacuum filtration method.The resulting hybrid film features abundant heterointerfaces,which enhance electron/ion transport,accommodate volume changes,and stabilize the electrode structure.As a result,the anode delivers high potassium storage capacity of 643.5 mAh g-1 at 0.1 A g-1and maintains 163.9 mAh g-1 at 10 A g-1,showcasing excellent rate performance.Full cell assemblies exhibit stable cycling performance with a reversible capacity of 207.8 mAh g-1 after 100 cycles.Combined crystallography and valence state analyses reveal a disordered phase transition in crystalline NPS during potassiation,indicating a dual mechanism involving both conversion and alloying reactions.This study offers valuable insights into the rational design of advanced anode materials for next-generation PIBs. 展开更多
关键词 Nickel thiophosphate Potassium-ion batteries Self-supporting electrode 3D conductive network Phase transition mechanism
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A novel naphthalenediimide-based metal-organic framework for inkless erasable printing with ultra-long cycling performance 认领 引用
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作者 Le-Tian Zhang Bin Xia +4 位作者 Nan Lu Quan-Wen Li Xia Zhang Na Li Xian-He Bu 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第12期467-470,共4页
Photo-responsive metal-organic frameworks(MOFs)have evoked considerable attention due to their potential application in inkless printing paper.However,the poor cycling performance and low printing resolution greatly i... Photo-responsive metal-organic frameworks(MOFs)have evoked considerable attention due to their potential application in inkless printing paper.However,the poor cycling performance and low printing resolution greatly inhibit their practical application.Herein,a novel MOF based on naphthalenediimide derivate moiety,[La(H2O)(BINDI)0.5(DMF)3][NO3](1,H4BINDI=N,N'-bis(5-isophthalic acid)naphthalenediimide),was successfully synthesized for inkless erasable printing.This material exhibits reversible photochromic behavior and good stability.The inkless printing paper coated with 1 delivers high resolution reaching up to 0.2 mm,comparable to commercial printers.Furthermore,the stable framework and suitable reversibility enable excellent cycling performance with 197 cycles,surpassing almost all reported MOFs.This work sheds light on new opportunities in designing outstanding photochromic MOFs for ink-free printing. 展开更多
关键词 Metal-organic framework Naphthalenediimide Photochromism Inkless printing Electron transfer
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Modeling evolutionary life history traits of copepods in the Georges Bank and Gulf of Maine region 认领 引用
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作者 Na Li Xianwen Bao +1 位作者 Maochong Shi Meiping Feng 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2025年第8期77-94,共18页
In the paper,copepod universal formulas are applied to construct a copepod individual-based model(IBM),and a genetic algorithm(GA)is incorporated in the formulas with genes as species parameters.The IBM initially cons... In the paper,copepod universal formulas are applied to construct a copepod individual-based model(IBM),and a genetic algorithm(GA)is incorporated in the formulas with genes as species parameters.The IBM initially constructs the individuals with all possible genes similar to the original state of natural selection.Climate-averaged temperature and chlorophyll a(Chl a)time series at the surface layer of fixed points in the Georges Bank(GB)and the Gulf of Maine(GOM)are taken as the model environment.The IBM has been running for 50 a in the environment without inter-annual change.The IBM results indicate that some of the life history traits of the top ten abundant species output by the IBM in the GB and the GOM are consistent with the real species Calanus finmarchicus,Pseudocalanus spp.,Centropages typicus,and Centropages hamatus in terms of reproduction strategy,time to reach the maximum abundance,water temperature preference,and adult body mass.The study of the top ten abundant species with multidimensional scaling(MDS)and clustering analysis(CA)methods indicates that reproduction strategy is the basis for grouping.For the species taking the broadcasting strategy,both GB and GOM environments tend to choose smallbodied species with cold-water preference,such as Pseudocalanus spp.;for the species taking the egg-carrying strategies,the GB environment selects large-bodied species with cold-water preference,such as C.finmarchicus,while the GOM environment selects medium-bodied species with warm-water preference,such as Centropages spp.(C.typicus and C.hamatus).After gene mutation is added to the IBM,the model result gets simple,which needs to be further improved.The significance of the paper lies in systematically studying the impact of GB and GOM environments on the evolutionary life history traits of copepods for the first time. 展开更多
关键词 copepod life history trait individual-based model Georges Bank Gulf of Maine
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Breaking Hardness-Toughness Trade-Off in Novel (V,Nb)C Carbides via Nanoscale Phase Separation and Local-Chemical-Order Dislocation Network 认领 引用
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作者 Zhi-Xuan Zhang Na Li +4 位作者 Guo-Rui Chang Zong-Yao Zhang Wei-Li Wang Chao Yuan Wei-Bin Zhang 《Rare Metals》 SCIE EI CAS CSCD 2026年第1期263-277,共15页
Transition metal carbides demonstrate exceptional mechanical properties but confront a critical hardness-toughness trade-off.Spinodal decomposition-mediated phase separation is an effective approach to enhance mechani... Transition metal carbides demonstrate exceptional mechanical properties but confront a critical hardness-toughness trade-off.Spinodal decomposition-mediated phase separation is an effective approach to enhance mechanical properties in carbide ceramics through high-temperature treatment.Guided by thermodynamic phase diagrams,this study designed a novel(V,Nb)C system wherein nanoscale phase separation was realized via controlled aging processes.Unlike traditional carbide ceramics,the aged(V,Nb)C carbides present a unique dual-scale microstructure:nanoscale intragranular spinodal decomposition coexists synergistically with a grain-boundary dislocation network associated with locally ordered phases.This unique structure effectively impedes dislocation motion,leading to superior mechanical performance enhancement compared to conventional carbide ceramics.Following controlled aging treatments,the material achieves a simultaneous enhancement of hardness(45%increase) and fracture toughness(25% improvement) relative to the as-fabricated state,thereby overcoming the intrinsic hardness-toughness trade-off inherent to carbide systems.This study elucidates the crucial role of spinodal decomposition in the microstructural evolution of composite carbides and highlights the efficacy of the chemically ordered dislocation network in suppressing diffusion and dislocation motion.These insights establish a robust theoretical framework for optimizing mechanical properties and designing ceramic materials with exceptional service performance. 展开更多
关键词 (V,Nb)C carbides chemically ordered phase dislocation network phase separation
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Physiological and molecular responses to sodium acetate addition and supplementation in the two stages of Haematococcus pluvialis 认领 引用
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作者 Yanbin LI Weizhao HAN +5 位作者 Na LI Tian XIE Xin TAN Song TANG Yequan SHENG Bangxiang HE 《Journal of Oceanology and Limnology》 SCIE CAS CSCD 2026年第2期768-783,共16页
The effects and mechanism of NaAc addition and supply modes growth in both green and red stages of Haematococcus pluvialis were investigated,and 1-g/L NaAc was found the optimal initial concentration for the two stage... The effects and mechanism of NaAc addition and supply modes growth in both green and red stages of Haematococcus pluvialis were investigated,and 1-g/L NaAc was found the optimal initial concentration for the two stages.On this basis,the extra supplement of 1-g/L NaAc on Day 6 of the green stage or on Day 3 of the red stage could further increase the accumulation of biomass.Compared with autotrophic control,the optimal NaAc supply mode increased the dry weight by 135.71%(green stage)and 91.11%(red stage),while astaxanthin and lipid were increased by 56.9%and 42.86%in red stage,respectively.Gene expression detection revealed that acetyl-CoA synthetase(acs)acs2,acs3,and acs5 were primarily responsible for the NaAc uptake during the green stage,and acs4 played a critical role in stress response during the red stage,additionally,key genes associated with acetate metabolism,astaxanthin synthesis,and lipid synthesis,were significantly upregulated under optimal NaAc supply mode.The findings provide practical and theoretical insights for NaAc use in Haematococcus pluvialis. 展开更多
关键词 Haematococcus pluvialis acetate supply mode acetate metabolism astaxanthin lipid
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Bioinspired Injection Therapy for Spent LiFePO4Batteries:A Non-Invasive Strategy for Capacity Regeneration and Longevity Enhancement 认领 引用
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作者 Peng Wang Jian Wang +8 位作者 Longwei Bai Na Li Chuancong Zhou Mingyang Chen Jialiang Zhang Zhenyue Xing Zaowen Zhao Wei Zhang Xiaodong Shi 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第7期644-662,共19页
The widespread deployment of lithium iron phosphate(LiFePO4,LFP)batteries has intensified the imperative to address the disposal challenges associated with retired LFP batteries,given their rapidly growing volumes.How... The widespread deployment of lithium iron phosphate(LiFePO4,LFP)batteries has intensified the imperative to address the disposal challenges associated with retired LFP batteries,given their rapidly growing volumes.However,existing regeneration techniques remain constrained by their inherent complexity,high energy demands,and limited scalability,posing significant barriers to achieving efficient and economically viable solutions.Herein,inspired by medical injection therapy,a novel,non-invasive strategy for direct capacity rejuvenation is proposed by injecting recovery reagents into spent LFP batteries,circumventing the need for disassembly.This innovative approach leverages the I3-/I-redox couple to activate residual/dead lithium on the graphite anode and selectively re-engineer the solid electrolyte interphase(SEI),preserving its functional components while optimizing interfacial dynamics.The restored lithium from the anode serves as an intrinsic source to replenish lithium deficits and rectify Li-Fe antisite defects within the degraded LFP cathode.The resulting regenerated pouch cells demonstrate remarkable recovery of electrochemical capacity,accompanied by superior kinetics performance and significantly extended cycle life.This pioneering strategy not only delivers an energy-efficient and cost-effective pathway for LFP battery regeneration but also holds transformative potential to redefine sustainable practices in lithium-ion battery reuse,thereby advancing their practical applications and prolonging their service life. 展开更多
关键词 Spent LFP batteries Direct regeneration I3-/I-redox couple Dead lithium Lithium replenishment
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Unified light-thermal-diffusion coupling multi-mechanism kinetic model for gas-solid photocatalytic CO2 reduction with experimental and simulation validation 认领 引用
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作者 Shicheng Liu Du Wen +5 位作者 Jing Xiang Ng Junbo Yu Xiangyu Chen Lehang Chen Qulan Zhou Na Li 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期854-867,I0020,共14页
Photocatalytic CO2 reduction in gas–solid systems is a complex process that requires the integrated consideration of illumination,photocatalytic performance,and gas diffusion on the catalyst surface.Oversimplifica... Photocatalytic CO2 reduction in gas–solid systems is a complex process that requires the integrated consideration of illumination,photocatalytic performance,and gas diffusion on the catalyst surface.Oversimplification of these factors in existing computational fluid dynamics models severely compromises their predictive capability under realistic reaction conditions.To address this limitation,this study develops a multi-mechanism kinetic model that integrates photoexcitation,Arrhenius thermal activation,Langmuir adsorption saturation,and Thiele diffusion resistance within a unified kinetic expression.Model parameters were constrained and validated using a combination of first-principles calculations and multiscale optical,spectroscopic,adsorption,and transport measurements in a tree-shaped uniform-flow reactor.Photocatalytic experiments of four distinct catalysts are then used to validate the multi-mechanism kinetic model,with R2 above 0.98.Under model-derived conditions,the operation of the tree-shaped reactor achieve an optimal conversion rate of 116.7μmol g-1h-1.The model reliably predicts the experimental rates across a wide range of operating conditions.It also accurately captures the optimal space velocity range and the promotional effect of increasing temperature.This work offers a generalizable framework for the theoretical understanding,modelling,and scale-up of photocatalytic CO2 conversion systems. 展开更多
关键词 Photocatalytic CO2conversion Multi-mechanism kinetic model Density functional theory Experiment validation
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SSAG:Situational Semantic Augmented Graph for Active SLAM in Object-Goal Navigation 认领 引用
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作者 Shasha Tian Zhengyang Chen +4 位作者 Kai Ren Na Li Chongwei Ruan Zhijia Cui Mian Wu 《Computers, Materials & Continua》 SCIE EI 2026年第9期452-473,共22页
To address the issues of low exploration efficiency and“geometric myopia”caused by the lack of highlevel environmental structure modeling for mobile robots in complex indoor environments,this paper proposes an activ... To address the issues of low exploration efficiency and“geometric myopia”caused by the lack of highlevel environmental structure modeling for mobile robots in complex indoor environments,this paper proposes an active SLAMobject navigationmethod based on Situational Semantic Augmented Graph(SSAG).Unlikemethods that learn policies solely on pixel-level semantic maps or exploit only object-level relations for implicit association,this work elevates local observations online into a room-level topological graph and performs explicit semantic reasoning over unobserved regions.First,an online room segmentation algorithmis employed to transformunstructured sensory data into a structured graph representation that characterizes room-level functional attributes and topological associations.Subsequently,a Graph Attention Network(GAT)is utilized to perform explicit reasoning on the semantic attributes of unobserved regions,providing decision-making priors for long-range exploration.Building upon this,we introduce a Product of Experts(PoE)mechanism within the Proximal Policy Optimization(PPO)framework to deeply fuse semantic reasoning heatmaps with geometric hard constraints.This integration optimizes the target selection strategy,generating long-term navigation goals with superior semantic consistency and physical reachability.Experimental results on the Habitat simulator and Gibson dataset demonstrate that the proposed SSAG achieves a Success weighted by Path Length(SPL)of 0.340,outperforming SemExp and SemGO by 15.3%and 4.9%,respectively,with a total success rate of 68.4%.Notably,for object search tasks with strong spatial correlations(e.g.,“bed”and“toilet”),the success rates reach 73.2%and 72.5%,representing a performance gain of over 20%compared to baseline methods.These results validate the effectiveness of room-level semantic reasoning for object navigation and demonstrate the capability of the proposed method to achieve efficient autonomous navigation in unknown,complex scenarios. 展开更多
关键词 Active SLAM object navigation situational semantic augmented graph graph attention network deep reinforcement learning
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Selenium-doping metal phosphides as bifunctional catalyst carrier for durable lithium-sulfur batteries 认领 引用 被引量：2
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作者 Wenxue Wang Longwei Bai +3 位作者 Na Li Shuo Zhao Xiaodong Shi Peng Wang 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第10期581-587,共7页
The practical application of lithium-sulfur(Li-S)batteries is still impeded by the severe shuttle effect of lithium polysulfides(LiPSs)and sluggish reaction kinetics of active sulfur.Designing catalytic carriers with ... The practical application of lithium-sulfur(Li-S)batteries is still impeded by the severe shuttle effect of lithium polysulfides(LiPSs)and sluggish reaction kinetics of active sulfur.Designing catalytic carriers with abundant active sites and strong chemisorption capability for LiPSs,is regarded as effective strategy to address these issues.Herein,Se-doping is introduced into the nitrogen-doped carbon coated CoP composite(Se-CoP@NC)to generate structural defects,which effectively enlarges the lattice spacing of CoP and reduces the conversion reaction energy barriers of LiPSs.Meanwhile,Se-doping sites bridges the interface of CoP and nitrogen-doped carbon,accelerating the charge transfer behavior and conversion reaction kinetics of LiPSs.Benefiting from the structural advantages,the assembled Li-S batteries with S/Se-CoP@NC as cathode exhibit high reversible capacity of 779.6 mAh/g at 0.5 C after 500 cycles,and high specific capacity of 805.9 mAh/g at 2 C.Even under extreme conditions(high sulfur-loading content of 6.9 mg/cm2;lean electrolyte dosage of 7μL/mg),the corresponding Li-S batteries also keep high reversible areal capacity of 4.5 mAh/cm2 after 100 cycles at 0.1 C.This work will inspire the design of metal compounds-based catalysts from atomic level to facilitate the practicability of Li-S batteries. 展开更多
关键词 Porous catalytic carrier Selenium-doping metal phosphides Polysulfides shuttle effect Active sulfur dissolution High sulfur-loading content Lithium-sulfur batteries
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Predictive performance of cervical elastography for preterm birth:A head-to-head network meta-analysis 认领 引用
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作者 Hui-Ping Zhang Na Li +1 位作者 Fan Li Yu-Qing Zhou 《World Journal of Radiology》 2026年第5期77-87,共11页
BACKGROUND Early detection of cervical remodeling is vital for predicting preterm birth(PTB).Conventional morphologic indices,such as cervical length(CL)and anterior cervical angle(ACA),demonstrate limited diagnostic ... BACKGROUND Early detection of cervical remodeling is vital for predicting preterm birth(PTB).Conventional morphologic indices,such as cervical length(CL)and anterior cervical angle(ACA),demonstrate limited diagnostic accuracy.Elastic imaging of the cervix(E-cervix)elastography offers functional biomechanical insights by quantifying cervical strain and stiffness.However,a systematic comparison of its diverse parameters alongside traditional indices is currently lacking.Identifying the most effective ultrasound-based markers is essential for improving midtrimester risk stratification and facilitating timely clinical interventions to improve perinatal outcomes.AIM To evaluate and compare the diagnostic performance of E-cervix parameters,CL,and ACA for PTB.METHODS PubMed,Web of Science,EMBASE,Cochrane Library,China National Knowledge Infrastructure,and Wanfang Data were searched up to December 1,2025.Studies reporting diagnostic accuracy of E-cervix parameters,CL,or ACA for PTB were included.A Bayesian network meta-analysis estimated pooled sensitivity,specificity,and diagnostic odds ratios(DOR).The comparative performance was ranked using the advantage index.Heterogeneity was assessed via Cochran’s Q and I2 statistics,with meta-regression exploring potential modifiers.RESULTS Fifteen studies involving 1965 pregnancies(570 PTB cases)were included.The multi-parametric combined model demonstrated the highest diagnostic performance,with an area under the curve of 0.91,sensitivity of 0.83,specificity of 0.83,and a DOR of 26.23.Among individual parameters,ACA(DOR:13.65)and the E-cervix hardness ratio(DOR:7.71)significantly outperformed conventional CL(DOR:3.58).Subgroup analysis revealed that the combined model was particularly effective in singleton pregnancies(sensitivity:0.837,specificity:0.882).No significant publication bias was detected except for elasticity contrast index.CONCLUSION E-cervix elastography provides superior diagnostic value compared to conventional CL measurement.The integration of biomechanical and morphological data via multi-parametric models offers the most precise risk stratification for PTB. 展开更多
关键词 Preterm birth Cervical length Cervical elastography Elastic imaging of the cervix Hardness ratio Network metaanalysis
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Streptococcus suis serotype 2 collagenase-like protease promotes meningitis by increasing blood-brain barrier permeability 认领 引用 被引量：1
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作者 Jikun Mei Xuan Jiang +7 位作者 Fengyang Li Zengshuai Wu Tong Wu Junhui Zhu Hexiang Jiang Ziheng Li Na Li Liancheng Lei 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2025年第11期4379-4394,共16页
Streptococcus suis serotype 2(SS2)is an emerging zoonotic pathogen that causes meningitis in humans and pigs.This pathogen generates substantial economic losses in the swine industry while posing a significant threat ... Streptococcus suis serotype 2(SS2)is an emerging zoonotic pathogen that causes meningitis in humans and pigs.This pathogen generates substantial economic losses in the swine industry while posing a significant threat to public health security.The mechanisms through which SS2 penetrates the brain and induces meningitis remain incompletely understood.This study examines the role and mechanism of SS2 collagenase-like protease(Clp)in facilitating bacterial passage across the blood-brain barrier(BBB).The research demonstrates that SS2 Clp enhanced virulence and tissue colonization while promoting BBB degradation in mice.The Δclp mutant exhibited reduced ability to traverse human brain microvascular endothelial(hCMEC/D3)cell monolayers compared to wild-type SS2,while the addition of recombinant protein rClp increased permeability.Furthermore,rClp significantly enhanced SS2 adhesion to hCMEC/D3,suppressed the expression of intercellular tight junction proteins ZO-1,Occludin,and Claudin-5 independent of its enzyme activity,and triggered hCMEC/D3 apoptosis through cell receptor ligand apoptosis and mitochondrial apoptosis pathways,partially dependent on its enzyme activity,leading to BBB disruption and enhanced permeability.Additionally,Clp enhanced the infiltration of macrophages(F4/80+),monocytes(F4/80-Ly6C+),and neutrophils(Ly6G+)into the brain following SS2 infection.These findings establish that SS2 Clp is essential for bacterial passage across the BBB,offering a theoretical foundation for improved prevention and treatment strategies for SS2-induced meningitis. 展开更多
关键词 Streptococcus suis serotype 2 collagenase-like protease Meningitis blood-brain barrier permeability
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