Journals
2026 EN
Tao Tiffany Junchen · Li Crystal Jingru · Liu Huinan
+3 more
ABSTRACT Natural disasters threaten population mental health. Acceptance, denoting recognition and assent of the finality of a situation, is a coping strategy that has been recommended following major disasters. This study investigates this topic for which existing findings are mixed. A survey was administered among a population‐representative Turkish national sample ( N = 7585) recruited through the internet panel of TGM Research (September–October 2023). We examined how acceptance and its interaction with cognitive integration (i.e., finding sense in a stressful event and finding significance in life after the event) were associated with common psychiatric symptoms. Respondents with high acceptance showed higher symptoms of anxiety, depression and PTSD. These associations were stronger when respondents also reported low perceived significance in life after the event. In the post‐disaster phase, the adaptiveness of acceptance could interplay with other factors, such as how much an individual finds significance in life following the disaster.
Journals
2026 EN
Murokinas Galing · Lin Yu Hsuan · Chen YiSheng
+7 more
Despite being one of the most promising candidates for emerging market opportunities, all‐vacuum‐deposited perovskite solar cells (PSCs) still suffer from significant efficiency limitations, primarily due to open‐circuit voltage ( V OC ) losses caused by interfacial defects at the top surface of the perovskite layer. In this work, we demonstrate PSCs fabricated via a simple, sandwich‐type all‐vacuum thermal evaporation process, incorporating an ultrathin (6 nm) MS‐OC (spiro[fluorene‐9,9′‐phenanthrene‐10′‐one] incorporated with o ‐phenylcarbazole) hole transport layer (HTL) as a growth template for hybrid metal–halide perovskites. To mitigate V OC losses and better understand the interfacial charge dynamics, we systematically investigate various electron transport materials (ETMs), with a particular focus on C 60 , LiF, and coevaporated C 60 :LiF (1:1). Our results reveal that the C 60 :LiF (1:1) coevaporation strategy not only suppresses fullerene aggregation but also effectively passivates the perovskite surface, thereby reducing nonradiative recombination and enhancing V OC by 23.37%. As a result, the power conversion efficiency (PCE) of the PSCs improved by 29.34%, reaching a PCE of 13.4% with low nonradiative loss (~135 mV). More importantly, this composite passivation approach significantly enhanced the device's environmental stability, maintaining 90% of its initial efficiency after 600 h of operation.
Journals
2026 EN
Bai Jianfang · Li Haijun · Dou Jingru
+2 more
Online solution annealing is suggested as a low‐cost process for hot‐rolled austenitic stainless steel, utilizing residual rolling heat to soften work‐hardened microstructures. However, the coil rolled using the new process exhibits inferior pickling efficiency compared to conventional processing due to variations in oxide layer morphology and chromium‐depleted layer (CDL) formation. The effects of final rolling temperature, air‐cooling time, and coiling temperature on the microstructure of the oxide layer and CDL in 304 austenitic stainless steel are investigated through hot‐rolling experiments. Based on these investigations, the online solution annealing process parameters are optimized to improve the surface quality of the strip after pickling. Higher final rolling temperatures (1020–1060 °C), air‐cooling times of 5–10 s, and lower coiling temperatures (below 500 °C) result in an oxide layer structure that is easier to pickle. Ultimately, an industrial hot‐rolling experiment incorporating online solution annealing is conducted, followed by pickling and cold‐rolling processes. In addition to mechanical properties and resistance to intergranular corrosion, the surface quality of the product is not significantly different from that of the cold‐rolled coil produced by the conventional process.
Journals
2026 EN
Dou Dongyang · Ma Baozhong · Cao Zhihe
+2 more
Recent years have witnessed remarkable progress in nickel hydrometallurgy, largely driven by increasing nickel demands from the expanding new energy and stainless steel industries. However, the hydrometallurgical process generates a large amount of laterite residue, which contains valuable metals such as iron and chromium. Currently, laterite residue is often landfilled or deep‐sea dumped due to high treatment costs, causing both ecological damage and resource waste. This study presents a biomass‐based ironmaking process for efficient Fe and Cr recovery from laterite residue. As a biomass resource, sawdust offers cost‐effective, abundant availability and strong iron oxide reduction capability. The phase composition and microstructure of the products are characterized to investigate the phase transformation behavior during the reduction process. The optimal reduction conditions are a 0.85:1 sawdust‐to‐laterite residue mass ratio at 1500 °C for 80 min. Experimental results show that under the optimal conditions, the iron and chromium content in the product reaches 96.71% and 2.63%, respectively, with recovery of 95.80% for iron and 95.29% for chromium.
Journals
2026 EN
Wang Junjie · Hu Haibing · Fang Feng
+6 more
Based on the study of BN‐based side dams with varying Al 2 O 3 contents for twin‐roll strip casting of silicon steel, it is demonstrated that increasing Al 2 O 3 content enhances corrosion resistance to silicon steel while maintaining comparable thermal, mechanical, and wear properties. The corrosion depth of the side dams exhibits a positive correlation with the silicon content in the molten steel; specifically, an increase in silicon content from Si‐free to 3.0 wt% results in an ≈80% increase in corrosion depth. Notably, side dams with higher Al 2 O 3 content demonstrate superior corrosion resistance in silicon steel, showing a 24% enhancement when the Al 2 O 3 content is increased from 5 to 10 in 1.5 wt% silicon steel. Increasing Al 2 O 3 content from 5 to 10 wt% elevates the wetting angle by 7.2%, reducing the spreading of molten steel on the surface of side dams, thereby enhancing corrosion resistance. Thermodynamic simulations indicate that increasing Al 2 O 3 content in side dams promotes protective slag formation, suppresses liquid phase generation, and enhances corrosion resistance during casting of silicon steel. This study provides a theoretical foundation for optimizing the composition of BN‐based side dams to improve their performance in twin‐roll strip casting of silicon steel.
Journals
2026 EN
Wang Chong · Zhuang Jingru · Xie Zhipeng
+6 more
The direct coupling of solar energy conversion and charge storage in a single material can provide new ideas for making energy‐storage devices. Furthermore, it can enable solar energy utilization in the dark. In this study, we successfully constructed carbon‐doped sodium poly(heptazine imine) by introducing barbituric acid into the synthetic process. In the presence of sacrificial agents and illumination, the resulting Na‐PHI‐BA sample has been shown to effectively store electrons and charge‐balancing protons. Subsequently, the stored electrons/protons can react with oxygen in the dark to produce hydrogen peroxide, thereby achieving the decoupling of light and dark reactions. Owing to the superior charge separation efficiency, Na‐PHI‐BA demonstrates enhanced photocharge storage capacity in comparison with the original Na‐PHI. Compared with the previously reported “dark” photocatalysis, the present catalytic system has achieved higher H 2 O 2 production (943.5 μmol g −1 ) with nearly stoichiometric amount of sacrificial agent. This study offers novel insights into the design of photocharge‐storing materials and the utilization of photocharges in the synthesis of high‐value‐added chemicals.
Journals
2026 EN
Huang Shule · Chen Shukai · Huang Libai
+1 more
Moiré superlattices have reshaped condensed‐matter physics by enabling twist‐angle engineering of electronic and excitonic states, traditionally in van der Waals (vdW) systems. This Perspective focuses on perovskites as a transformative non‐van der Waals (non‐vdW) platform for twistronics. These materials are distinguished by ionic‐covalent bonding and soft octahedral lattices that support deep moiré potentials (≈100–200 meV), which in turn yield bright, room‐temperature excitons and tunable quantum phenomena. We organize recent advances into two core classes: (i) moiré superlattices constructed from 2D Ruddlesden‐Popper (RP) perovskites via spontaneous or guided twisted stacking; and (ii) moiré architectures in 3D perovskite lamellae, achieved through topotactic 2D RP‐to‐3D conversion and ligand‐induced self‐assembly. Key experimental observations in these systems include twist‐tunable moiré periods, suppressed exciton–exciton annihilation, flat band‐like transport, and ferroelectric vortex lattices in their oxide perovskite counterparts. We outline key bottlenecks, including defects arising during phase conversion, stringent lattice‐matching requirements, and the absence of in situ twist metrology, and highlight opportunities in lattice‐mismatched heterostructures and multifunctional quantum‐optoelectronic devices. Collectively, these advances establish perovskite moiré systems as a critical bridge between fundamental moiré physics and room‐temperature technological applications.
Journals
2026 EN
Li Yue · Ruan Xin · Dou Weiyu
+1 more
Abstract Ultra‐high performance concrete (UHPC) is widely utilized in shear pockets to form the shearing connection between steel girders and precast concrete decks. The restrained shrinkage of UHPC generates significant stress in the steel rebars, the clustered studs within the pocket, and the surrounding precast concrete, thereby altering the initial mechanical states of the bridge deck system. This motivates the investigation of the restrained shrinkage effect of UHPC in shear pockets and the structural optimization strategies to mitigate the induced stresses. Experimental measurements of restrained shrinkage in UHPC are compared with free‐stress shrinkage, revealing a 47% reduction in shrinkage strain at the pocket bottom compared to the latter one. The effect of the precast deck on the shrinkage strain is non‐uniform, with strains at the pocket center being 30% lower than those at the edges. Numerical reproduction of the restrained shrinkage of UHPC in the test provides detailed insights into the stress distributions in UHPC, steel rebars, clustered studs, and surrounding concrete. To mitigate the extreme tensile stress in shear pockets, two structural optimization strategies are evaluated. Among them, covering stud bodies with rubber hoses proves effective, reducing the extreme local tensile stress at the bottom corner of the shear pocket by 19%.
WILEY‐VCH Verlag GmbH & Co. KGaA
Journals
2026 EN
Chen Hao · Gu ShengYang · Dou Xiankang
+3 more
Abstract During austral summer of 2002/2003, the TIMED/TIDI meridional wind observations show that after the attenuation of the climatological quasi‐2‐day wave (Q2DW) with westward zonal wavenumber 3 (W3) and a period of 47 hr (hrs) in January, a 53 hr abnormal W3 Q2DW event occurred in February with symmetric latitudinal structure about the equator. Our analysis indicates that this abnormal W3 Q2DW is generated by the nonlinear interaction between the climatological W3 Q2DW and a ∼ zonally symmetric oscillation associated with a sudden stratospheric warming (SSW). The SSW occurring in boreal winter modulated the meridional circulation through interhemispheric coupling, which influenced the background wind in the summer hemisphere and favored the amplification of a symmetric Q2DW mode in February consequently. The diagnostic analysis reveals that this February W3 Q2DW was mainly amplified near the stratopause at low latitudes of the Southern Hemisphere, where the background atmospheric conditions are suitable for the amplification of the W3 Q2DW. Thus, both the nonlinear interaction and favorable background atmospheric conditions contribute to the occurrence of the abnormal W3 Q2DW in February.
Journals
2026 EN
Luo Bingxu · Zhang Shuo · Takeuchi Nozomu
+4 more
Abstract Seismic noise interferometry enables monitoring of near‐surface medium variations driven by environmental changes without the need for active sources. However, its application in ocean environments has been limited by the scarcity of long‐term ocean‐bottom seismic recordings. Here, we analyze seismograms from eight ocean‐bottom seismometers deployed at depths >5,500 m and measure time‐lapse relative changes in seismic velocity ( δ v / v $\delta v/v$ ) over ∼1.5 yr. The results reveal a strong correlation betweenδ v / v $\delta v/v$ and pressure variations spanning from the sea surface to the deep seafloor. The association between sealevel pressure, cyclones/anticyclones, and wind fields indicates that the observed anomalies originate in the atmosphere and diffuse downward to the seafloor. Two best‐fit pressure diffusion models reproduce both the long‐term trend and in‐phase periodic variations inδ v / v $\delta v/v$ , suggesting that the seismic response is primarily driven by poroelastic strain in the near‐seafloor medium. To evaluate potential OBS timing artifacts, we perform independent clock‐drift estimations and subarray jackknife tests. These analyses show that incoherent timing‐related errors average out across the network, whereas the coherent component ofδ v / v $\delta v/v$ remains robust and physically interpretable. Our findings demonstrate that deep‐seafloor seismic responses are sufficiently sensitive to capture atmospheric activity and highlight the potential of passive seismic sensing as a tool for monitoring oceanographic and atmospheric processes and associated hazards.