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Abstract ：
This paper investigates the global existence and asymptotic behavior of solutions to the system of an incompressible, inviscid, non-resistive magnetohydrodynamic (MHD) fluid with a velocity damping term in a two-dimensional (2D) horizontally periodic domain, analyzed in Lagrangian coordinates. Motivated by the oddity conditions introduced in Pan et al. (2018) [16], we establish the global existence of a unique classical solution for some class of large initial perturbations correlated with the intensity of the impressed magnetic field. Furthermore, we demonstrate that the solution exhibits exponential decay in time towards its equilibrium. Additionally, we show that for large times or sufficiently strong impressed magnetic fields, the nonlinear MHD system converges to the corresponding linearized problem, with convergence rates that are algebraic in the magnetic field strength and exponential in time. © 2025 Elsevier Inc.
Keyword ：
Convergence in the terms of field intensity Global existence of solutions Incompressible MHD fluids Initial-boundary value problem Large initial data
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| GB/T 7714 | Fan, L. , Zhao, Y. . Global large solutions to an initial-boundary value problem of the incompressible ideal MHD equations with velocity damping [J]. | Journal of Mathematical Analysis and Applications , 2026 , 554 (1) . |
| MLA | Fan, L. 等. "Global large solutions to an initial-boundary value problem of the incompressible ideal MHD equations with velocity damping" . | Journal of Mathematical Analysis and Applications 554 . 1 (2026) . |
| APA | Fan, L. , Zhao, Y. . Global large solutions to an initial-boundary value problem of the incompressible ideal MHD equations with velocity damping . | Journal of Mathematical Analysis and Applications , 2026 , 554 (1) . |
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Let G be a graph with n vertices. A path decomposition of G is a set of edge-disjoint paths including all the edges of G. Let p(G) denote the minimum number of paths in a path decomposition of G. Gallai's Conjecture asserts that if G is connected, then [Formula prsented]. The E-subgraph of G is the subgraph induced by the vertices of even degree in G. A well-known result of Lovász is that if the E-subgraph of G is empty or isomorphic to K1, then [Formula prsented]. In this paper, we prove that if the E-subgraph of G is isomorphic to Km with m≤15, then [Formula prsented], which implies, under the condition, that Gallai's Conjecture holds when n is odd. A simple graph G on n vertices is called a semi-clique if [Formula prsented]. By the definition, if G is a semi-clique on n vertices, then n must be odd and [Formula prsented]. As a corollary of our main result, we obtain that if G is a semi-clique on n vertices, then [Formula prsented]. © 2025 Elsevier B.V.
Keyword ：
Gallai's conjecture Path decomposition Semi-cliques
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| GB/T 7714 | Chu, Y. , Fan, G. , Zhou, C. . Gallai's conjecture and the path number of odd semi-cliques [J]. | Discrete Mathematics , 2026 , 349 (2) . |
| MLA | Chu, Y. 等. "Gallai's conjecture and the path number of odd semi-cliques" . | Discrete Mathematics 349 . 2 (2026) . |
| APA | Chu, Y. , Fan, G. , Zhou, C. . Gallai's conjecture and the path number of odd semi-cliques . | Discrete Mathematics , 2026 , 349 (2) . |
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Let D be a digraph. The dichromatic number of D is the smallest number of colors needed to color the vertices of D such that each color class induces a subdigraph without directed cycles. In this paper, we investigate a conjecture proposed by Aboulker, Charbit and Naserasr, which extends the well known Gyárfás-Sumner conjecture to digraphs. Let Pk→ and Ck→ be a directed path and a directed cycle on k vertices, respectively. Denote by C3 the family of all oriented cycles on 3 vertices. We prove that every {P7→,C4→,C3}-free oriented graph has dichromatic number at most 190. Additionally, we verify that the dichromatic number of any {P6→,C3}-free oriented graph is at most 178, improving a result of Aboulker, Aubian, Charbit and Thomassé. © 2025 Elsevier B.V.
Keyword ：
Dichromatic number Forbidden induced subdigraph χ→-bounded
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| GB/T 7714 | Chen, B. , Hou, X. . The dichromatic number of digraphs without induced subdigraphs [J]. | Discrete Mathematics , 2026 , 349 (2) . |
| MLA | Chen, B. 等. "The dichromatic number of digraphs without induced subdigraphs" . | Discrete Mathematics 349 . 2 (2026) . |
| APA | Chen, B. , Hou, X. . The dichromatic number of digraphs without induced subdigraphs . | Discrete Mathematics , 2026 , 349 (2) . |
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Critical-sized bone defects caused by trauma, congenital malformation, or tumor resection remain a major challenge around the world. Current bone tissue-engineering scaffolds are partially confined by inadequate scaffold architecture design that mismatches with natural bone tissue, which affect normal biological functions like inflammation modulation and biomineralization, thus impairing bone regeneration process. Herein, a biomimetic 3D-printed BMGP scaffold composed of polydopamine (PDA)-polylactide (PLA) scaffold and black phosphorus (BP) nanosheets/manganese carbonyl (MnCO) nanosheets/gelatin methacryloyl hydrogel (named as BMG hydrogel) was developed for augmenting bone regeneration via strengthening anti-inflammatory effect and promoting in-situ biomineralization process. Through infilling the BMG hydrogel into the gradient-porous PDA-PLA scaffold, the obtained BMGP scaffold successfully mimicked cancellous and compact bone structure and extracellular matrix component in natural bone tissue. Upon being implanted into the critical-sized bone defect, a Fenton-like reaction between the MnCO nanosheet and endogenous hydrogen peroxide effectively induced carbon monoxide release, thereby improving anti-inflammatory response and facilitating macrophage reversed from pro-inflammatory M1 phenotype to anti-inflammatory M2 phenotype. Meanwhile, the BP nanosheet underwent degradation and in-situ biomineralization, which accelerated calcium phosphate formation and enhanced osteogenesis. Based on in-vitro and in-vivo data, the 3D-printed BMGP scaffold that integrated structural and functional biomimicry exhibited desirable inflammatory inhibition and in-situ biomineralization performances, as well as favorable osteogenic effect in rat critical-sized femoral bone defect. In all, such biomimetic scaffold obviously propelled bone regeneration process, and provided a promising strategy for treating critical-sized bone defects in clinic.
Keyword ：
3D-printing Biomimetic tissue engineering scaffold Bone regeneration Inflammation inhibition In-situ biomineralization
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| GB/T 7714 | Wu, Dongyu , Gao, Shangjun , He, Shaohua et al. 3D-printed scaffold with biomimetic gradient structure for promoting bone regeneration through inhibiting inflammation and facilitating in-situ biomineralization [J]. | BIOMATERIALS ADVANCES , 2026 , 178 . |
| MLA | Wu, Dongyu et al. "3D-printed scaffold with biomimetic gradient structure for promoting bone regeneration through inhibiting inflammation and facilitating in-situ biomineralization" . | BIOMATERIALS ADVANCES 178 (2026) . |
| APA | Wu, Dongyu , Gao, Shangjun , He, Shaohua , Liu, Wanling , Liu, Qingwei , Lan, Siyao et al. 3D-printed scaffold with biomimetic gradient structure for promoting bone regeneration through inhibiting inflammation and facilitating in-situ biomineralization . | BIOMATERIALS ADVANCES , 2026 , 178 . |
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Inorganic-organic S-scheme heterostructure photocatalysts have demonstrated exceptional potential in boosting charge separation for CO2 reduction. However, the reduction typically occurs at the inorganic site, resulting in underutilization of high CO2 adsorption capacity of organic material. To resolve this mismatch, we combined a low conduction band iron tungstate (FeWO4) with a dioxin-linked covalent organic framework (COF) to construct S-scheme heterojunction, where the COF serve as the reduction photocatalysts and FeWO4 act as the oxidation photocatalysts, for photocatalytic CO2 reduction. Density functional theory (DFT) calculations and in-situ spectroscopic analyses confirm that the FeWO4/COF hybrids steer an S-scheme charge transfer pathway driven by an enhanced internal electric field. Benefiting from the synergy between the strong CO2 adsorption at the COF cyano site, which aligns with its role as the reduction site, and the unique S-scheme electron transfer, the composites achieve a significantly higher CO yield (55.9 mu molg(-1)h(-1)) than COF (5.5 mu molg(-1)h(-1)) with 100 % selectivity and no sacrificial agents or sensitizers. Isotope tracer experiments verify that the CO was from CO2. In-situ Fourier transform infrared spectroscopy (FT-IR) coupled with two-dimensional correlation spectroscopy (2D-COS) unveils the sequential reduction process of CO2. This study envisions a harmoniously aligned inorganic/organic S-scheme heterojunction for boosting CO2 photoreduction.
Keyword ：
CO2 adsorption CO2 reduction Covalent organic framework S -Scheme heterojunction
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| GB/T 7714 | Chen, Yueling , Liang, Tengfei , Lin, Yuling et al. Enhanced photocatalytic carbon dioxide reduction over iron tungstate/ covalent organic framework heterojunctions by the induced unified adsorption and reduction sites [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2026 , 701 . |
| MLA | Chen, Yueling et al. "Enhanced photocatalytic carbon dioxide reduction over iron tungstate/ covalent organic framework heterojunctions by the induced unified adsorption and reduction sites" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 701 (2026) . |
| APA | Chen, Yueling , Liang, Tengfei , Lin, Yuling , Peng, Weikang , Chen, Ziyan , Lin, Wei et al. Enhanced photocatalytic carbon dioxide reduction over iron tungstate/ covalent organic framework heterojunctions by the induced unified adsorption and reduction sites . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2026 , 701 . |
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Driven by the urgent need for eco-friendly, safe and facile production processes for hydrogen peroxide (H2O2), piezocatalysis shows significant potential due to its accessible energy supply and capacity for on-site H2O2 preparation. Owing to their tunable surface properties and unique electronic structures, transition metal dichalcogenides (TMDCs) are regarded as promising piezocatalysts. Nevertheless, the uneven distribution of active sites, poor stability, and restricted electron transport capabilities hinder the further improvement of their piezocatalytic performance. In this study, WS2 thin sheets were prepared by liquid-phase stripping, which significantly increase the number of exposed active sites to provide an optimized interfacial environment for the adsorption of reactant molecules, and the resulting thin-layer structure greatly improves the charge transfer efficiency. More importantly, WS2 thin sheets were utilized in piezocatalytic H2O2 evolution. Remarkably, under conditions of pure water and ambient air, these thin sheets exhibit outstanding piezocatalytic performance with an H2O2 evolution rate as high as 994.7 mu mol g-1 h-1. And they retained 80.14 % of their activity after 10 h of cyclic operation, demonstrating excellent cycling stability. Furthermore, mechanistic investigations propose three potential pathways for H2O2 evolution, providing a novel perspective for elucidating the underlying mechanism of piezocatalysis in TMDCs.
Keyword ：
Piezocatalysis Thin-layer structure WS2
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| GB/T 7714 | Wang, Ying , Dong, Gaolei , Lin, Mei et al. Tungsten sulfide sheets with tunable layered structures: Piezocatalysis via multi-channels to generate H2O2 [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2026 , 701 . |
| MLA | Wang, Ying et al. "Tungsten sulfide sheets with tunable layered structures: Piezocatalysis via multi-channels to generate H2O2" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 701 (2026) . |
| APA | Wang, Ying , Dong, Gaolei , Lin, Mei , Wu, Xiao , Lin, Tengfei , Gao, Min et al. Tungsten sulfide sheets with tunable layered structures: Piezocatalysis via multi-channels to generate H2O2 . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2026 , 701 . |
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Evaluating and quantifying the impact of the introduction of nanomaterials on microscopic properties is crucial to ensure the carbonation resistance of nano-modified cementitious materials. In this paper, Titanium dioxide @Layered Double Hydroxide (TiO2@LDH) nanospheres with core-shell structure were synthesized by two-step method and showed notable dispersion and stability in cementitious matrix. The effect of TiO2@LDH on cement hydration, carbonation behavior, microstructure and mechanical properties of mortar were investigated. The results show that under the effect of nucleation and refinement, the hydration degree of mortar containing TiO2@LDH increases by 19.6 % and the total porosity decreases by 12.5 %, and the compressive strength increased by about 27.01 %. By adjusting the growth rate and particle size of CH crystals, the CO2 absorption capacity of mortar increased by 28 %. The synergistic mechanism of TiO2@LDH promoting hydration and early CO2 uptake to improve the carbonation resistance of mortar was proposed. More importantly, based on the reduction of mortar porosity and the formation of early physical barriers, the carbonation resistance and gas permeability of mortar were reduced by 53.7 % and 79.7 %, respectively. This novel nano-control technology provides a promising alternative for the application and development of carbon sequestration in cementitious materials.
Keyword ：
Cement hydration CO2 uptake Early carbonation Microstructure TiO2@LDH nanospheres
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| GB/T 7714 | Xu, Jiankun , Yang, Zhengxian , Zheng, Zelong et al. Influence of core-shell nanospheres on the carbonation development of cement mortars and its mechanism: synergistic effect of hydration and early CO2 uptake [J]. | CEMENT & CONCRETE COMPOSITES , 2026 , 165 . |
| MLA | Xu, Jiankun et al. "Influence of core-shell nanospheres on the carbonation development of cement mortars and its mechanism: synergistic effect of hydration and early CO2 uptake" . | CEMENT & CONCRETE COMPOSITES 165 (2026) . |
| APA | Xu, Jiankun , Yang, Zhengxian , Zheng, Zelong , Nicolaides, Demetris , Zhang, Yong , Marano, Giuseppe Carlo et al. Influence of core-shell nanospheres on the carbonation development of cement mortars and its mechanism: synergistic effect of hydration and early CO2 uptake . | CEMENT & CONCRETE COMPOSITES , 2026 , 165 . |
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The use of renewable electricity to electrooxidize the biomass feedstock glucose and convert it into valuable chemicals, combined with water electrolysis to produce hydrogen, promises to achieve carbon neutrality and provide alternative energy storage solutions. However, the commercial viability of glucose electrooxidation reaction (GOR) to produce lactic acid (LA) and formic acid (FA) remains challenging due to low selectivity and poor long-term stability. Herein, a novel bifunctional catalyst (Pt/Ni-NC), was successfully developed by embedding Ni into nitrogen-doped hollow carbon spheres and incorporating low levels of Pt. The catalyst exhibited excellent performance for glucose electrooxidation, selectively producing lactic acid (with a yield of 59.3 %) and formic acid (with a yield of 35.2 %), as well as for hydrogen evolution in an integrated electrolytic system. The glucose electrolytic cell operated at a lower voltage (only 1.45 V at 10 mA cm−2) than conventional water splitting, achieving significant yields of LA and FA. Density functional theory (DFT) calculations provided insights into the mechanism, revealing that Pt doping facilitated electron transfer, enhancing glucose molecule activation and promoting the conversion of intermediates through a thermodynamically favorable pathway. Overall, this work highlights a promising strategy for coupling biomass conversion with hydrogen production, contributing to the development of sustainable energy and chemical processes. © 2025
Keyword ：
Biomass Carbon Catalysts Density functional theory Doping (additives) Electrocatalysis Electrolysis Electrolytic cells Electrooxidation Formic acid Glucose Glucose sensors Hydrogen evolution reaction Hydrogen production Hydrogen storage Lactic acid Platinum
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| GB/T 7714 | Li, Yancai , Liao, Danrong , Fang, Huiyan et al. Tailoring bifunctional platinum-nickel-carbon catalysts for coupled biomass glucose electrooxidation to value-added products with hydrogen evolution reaction [J]. | Journal of Colloid and Interface Science , 2026 , 701 . |
| MLA | Li, Yancai et al. "Tailoring bifunctional platinum-nickel-carbon catalysts for coupled biomass glucose electrooxidation to value-added products with hydrogen evolution reaction" . | Journal of Colloid and Interface Science 701 (2026) . |
| APA | Li, Yancai , Liao, Danrong , Fang, Huiyan , Zhang, Yingzhen . Tailoring bifunctional platinum-nickel-carbon catalysts for coupled biomass glucose electrooxidation to value-added products with hydrogen evolution reaction . | Journal of Colloid and Interface Science , 2026 , 701 . |
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The photovoltaic module (PVM) primarily captures photons near the semiconductor bandgap to generate photocurrent. However, low- and high-energy photons outside this range are largely wasted as heat, limiting efficiency to approximately 33% (Shockley–Queisser limit). To utilize the full solar spectrum, a spectrally selective absorber (SSA) and a liquid thermocell (LTC) are synergistically integrated with a PVM to form a novel hybrid system for the first time. The developed model improves upon previous work by including: (i) the PVM-to-LTC area ratio, (ii) iterative energy balance to determine LTC electrode temperatures, and (iii) key irreversible losses in both subsystems. Under AM1.5G conditions (1 kW m−2), the proposed hybrid system has a maximum conversion efficiency of 20.70% and a electric power density of 207.0 W m−2 when the PVM operates at 345 K. Compared to a standalone PVM, the hybrid system demonstrates a 7.64% improvement in both efficiency and power density, outperforming the PVM and solid-state thermoelectric generator hybrid technologies. Parametric studies reveal that lowering PVM and sink temperatures, narrowing LTC electrode spacing, and raising ambient temperature can significantly improve performance. This study provides a theoretical foundation for the optimal design and operation of PVM-LTC hybrid systems, offering valuable insights into solar full-spectrum utilization and waste heat recovery in PV applications. © 2025 Elsevier Ltd
Keyword ：
Conversion efficiency Electric losses Energy efficiency Hybrid power Hybrid systems Photovoltaics Solar absorbers Spectrum efficiency Waste utilization
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| GB/T 7714 | Ye, Fuqian , Zhao, Xin , Zhang, Yuxin et al. Efficiency enhancement of photovoltaic modules via full-spectrum utilization and waste heat recovery using liquid-state thermocells [J]. | Renewable Energy , 2026 , 256 . |
| MLA | Ye, Fuqian et al. "Efficiency enhancement of photovoltaic modules via full-spectrum utilization and waste heat recovery using liquid-state thermocells" . | Renewable Energy 256 (2026) . |
| APA | Ye, Fuqian , Zhao, Xin , Zhang, Yuxin , Man, Yi , Qi, Feihong , Zhang, Xin et al. Efficiency enhancement of photovoltaic modules via full-spectrum utilization and waste heat recovery using liquid-state thermocells . | Renewable Energy , 2026 , 256 . |
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Enhancing luminol-based chemiluminescence (CL) emission through functionalized materials is essential for developing highly sensitive method in rapid analysis. Herein, a Fe-MIL-101(NH2) enhanced CL method was developed for the selective determination of glutamic acid (Glu) in serum. By utilizing Fe-MIL-101(NH2) as an effective catalyst for the first time, the CL intensity of the luminol-H2O2 system was amplified, and this system exhibited a selective response to Glu. Mechanism studies demonstrated that Fe-MIL-101(NH2) selectively recognizes HOO- and Glu through host-guest interactions, thereby accelerating the luminol-H2O2 reaction kinetics. Under optimal conditions, the CL intensity exhibited a linear relationship with the concentration of Glu in the range of 0.01-10 mu g/mL, with the limited of detection (LOD) of 0.003 mu g/mL. This method was successfully applied to determine Glu in human serum from epilepsy patients and healthy individuals, with results that consistent with those from high-performance liquid chromatography-mass spectrometry (HPLC-MS). New applications were opened up for CL and provided a rapid and reliable alternative method for diagnosing mental disorders.
Keyword ：
Chemiluminescence Fe-MIL-101(NH 2 ) Glutamic acid Host-guest recognization
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| GB/T 7714 | Wang, Shuyi , Zheng, Lingzhao , Wang, Xiaoyu et al. Enhanced chemiluminescence driven by Fe-MIL-101(NH2) host-guest recognition for the detection of glutamic acid [J]. | TALANTA , 2026 , 297 . |
| MLA | Wang, Shuyi et al. "Enhanced chemiluminescence driven by Fe-MIL-101(NH2) host-guest recognition for the detection of glutamic acid" . | TALANTA 297 (2026) . |
| APA | Wang, Shuyi , Zheng, Lingzhao , Wang, Xiaoyu , Zhong, Yanhui , Lin, Zian . Enhanced chemiluminescence driven by Fe-MIL-101(NH2) host-guest recognition for the detection of glutamic acid . | TALANTA , 2026 , 297 . |
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