Publications by authors named "Guowei Liu"

The control effect of water-rock interactions on the pore structure strongly influences the extraction efficiency of coalbed methane. In this study, the #3 coal seam in the Fanzhuang block was taken as the research object, and a physical simulation cross experiment involving water-rock interactions was designed with different mineralization rates and different flow rates. The changes in the coal pore structure were compared to and analyzed under different experimental environments.

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Jiawei Kongsheng Zhenzhong Pill(JKZP) is based on Kongsheng Zhenzhong Pill contained in the Tang Dynasty's "Thousand Golden Prescriptions," which exhibited good anti-ischemic and antidepressant effects in the previous study. However, its specific effects on post-stroke depression (PSD) and the mechanism are not clear. This study aimed to investigate the effects of JKZP in the treatment of PSD and related mechanisms.

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Background: Although many previous trials have formalized the blood glucose-lowering effect of the DASH diet, relevant reports in China remain limited. This study aimed to explore the anti-hyperglycaemic effect of the Chinese Modified Dietary Approaches to Stop Hypertension diet combined with 23% low-sodium salt and meal packs in patients with hypertension and type 2 diabetes.

Methods: We conducted a randomized controlled single-blinded trial with a semi-open design; 100 participants were randomly assigned to Group A (control), Group B (23% low-sodium salt), and Group C (meal packs) for 8 weeks of dietary intervention.

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Non-Hermitian physics, studying systems described by non-Hermitian Hamiltonians, reveals unique phenomena not present in Hermitian systems. Unlike Hermitian systems, non-Hermitian systems have complex eigenvalues, making their effects less directly observable. Recently, significant efforts have been devoted to incorporating the non-Hermitian effects into condensed matter physics.

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Background: Non-small cell lung cancer (NSCLC), the most prevalent lung cancer subtype, presents significant treatment challenges. Cisplatin (CP)-based regimens are central to the treatment of multiple solid tumors, but its use is restricted due to its dose-related renal toxicity. We previously found that fluorofenidone {1-[3-fluorophenyl]-5-methyl-2-[(1H)]-pyridone (AKF-PD)} effectively reverses CP-induced acute kidney injury (AKI).

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In this paper, we report an efficient red-green-blue (RGB) laser based on the stimulated Raman scattering (SRS) of ethanol. The wavelengths of the three-color laser are 631, 532, and 447 nm, respectively, and the gamut space that can cover is 116% of the Rec. 2020 standard gamut in the CIE1976 color space.

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Defect engineering in the inherently inert basal planes of transition metal dichalcogenides (TMDs), involving the introduction of chalcogen vacancies, represents a pivotal approach to enhance catalytic activity by exposing high-density catalytic metal single-atom sites. However, achieving a single-atom limit spacing between chalcogen vacancies to form ordered superstructures remains challenging for creating uniformly distributed high-density metal single-atom sites on TMDs comparable to carbon-supported single-atom catalysts (SACs). Here we unveil an efficient TMD-based topological catalyst for hydrogen evolution reaction (HER), featuring high-density single-atom reactive centers on a few-layer (7 × 7)-PtTe superstructure.

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Solution-processable electrodes are promising for next-generation electronics due to their simplicity, cost-effectiveness, and potential for large-area fabrication. However, current solution-processable electrodes based on conductive polymers, carbon-based compounds, and metal nanowires face challenges related to stability, patterning, and production scalability. Here we introduce a novel approach using 3D tin halide perovskites (THPs) combined with a photolithography-free solution patterning technique to fabricate solution-processed electrodes.

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Superconductivity and magnetism are often antagonistic in quantum matter, although their intertwining has long been considered in frustrated-lattice systems. Here we utilize scanning tunnelling microscopy and muon spin resonance to demonstrate time-reversal symmetry-breaking superconductivity in kagome metal Cs(V, Ta)Sb, where the Cooper pairing exhibits magnetism and is modulated by it. In the magnetic channel, we observe spontaneous internal magnetism in a fully gapped superconducting state.

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Superconductivity involving finite-momentum pairing can lead to spatial-gap and pair-density modulations, as well as Bogoliubov Fermi states within the superconducting gap. However, the experimental realization of their intertwined relations has been challenging. Here we detect chiral kagome superconductivity modulations with residual Fermi arcs in KVSb and CsVSb using normal and Josephson scanning tunnelling microscopy down to 30 millikelvin with a resolved electronic energy difference at the microelectronvolt level.

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Article Synopsis
  • The kagome spin ice can exhibit frustrated magnetic excitations when local spins are flipped, which can be studied using scanning tunneling microscopy (STM).
  • Applying this technique to the kagome metal HoAgGe, distinct dips in the local tunneling spectrum indicate a strong correlation with the spin ice's magnetic properties, disappearing above the spin ice formation temperature.
  • A two-level spin-flip model is proposed to explain these tunneling dips, highlighting the role of spin-orbit coupling in the emergent excitations of spin ice magnetism in this material.
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Dihydroquercetin (DHQ), also known as Taxifolin (TA), is a flavanonol with various biological activities, such as anticancer, anti-inflammatory, and antioxidative properties. It has been found to effectively increase the viability of porcine intestinal epithelial cells (IPEC-J2). However, the precise mechanism by which DHQ increases the proliferation of IPEC-J2 cells is not entirely understood.

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Developing efficient photocatalysts for two-electron water splitting with simultaneous HO and H generation shows great promise for practical application. Currently, the efficiency of two-electron water splitting is still restricted by the low utilization of photogenerated charges, especially holes, of which the transfer rate is much slower than that of electrons. Herein, Ru single atoms and RuO clusters are co-decorated on ZnInS (RuO/Ru-ZIS) to employ as multifunctional sites for efficient photocatalytic pure water splitting.

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Radiative cooling window has been designed to emit infrared radiation in the atmospheric transparency window and reflects near-infrared light while allowing visible light to pass through. However, improvements are still needed in the transmissivity of visible light, the reflectivity of near-infrared light, and emissivity of mid-infrared spectra. This paper proposes a color-preserving radiative cooling window consisting of a multilayer film as a transparent near-infrared reflector and polydimethylsiloxane (PDMS) as a thermal emitter.

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Article Synopsis
  • Researchers used single-cell RNA sequencing data to identify effective markers for distinguishing CAFs in lung cancer, focusing on practical applications such as early diagnosis and treatment response.
  • They found that COL1A1 was the most reliable marker among the CAF subgroups, showing strong correlations with treatment responses and survival, ultimately enhancing understanding of CAF roles in therapy outcomes.
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Element doping has been demonstrated as a useful strategy to regulate the band gap and electronic structure of photocatalyst for improving photocatalytic activity. Herein, ZnInS (ZIS) nanosheets were doped with alkali metal ions (Li, Na or K) by a simple solution method. Experimental characterizations reveal that alkali metal ions doping reduce the band gap, raise the conduction band position, and improve surface hydrophilicity of ZIS.

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Gallium nitride (GaN) nanowire, as a type of wide bandgap nanomaterial, has attracted considerable interest because of its outstanding physicochemical properties and applications in energy storage and photoelectric devices. In this study, we prepared GaN nanowires via a facile chemical vapor deposition method and investigated their nonlinear absorption responses ranging from ultraviolet to near-infrared in the z-scan technology under irradiation by picosecond laser pulses. The experiment revealed that GaN nanowires exhibit remarkable nonlinear absorption characteristics attributed to their wide bandgap and nanostructure, including saturable absorption and reverse saturable absorption.

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A promising therapeutic strategy in cancer treatment merges photodynamic therapy (PDT) induced apoptosis with ferroptosis, a form of programmed cell death governed by iron-dependent lipid peroxidation. Given the pivotal role of mitochondria in ferroptosis, the development of photosensitizers that specifically provoke mitochondrial dysfunction and consequentially trigger ferroptosis via PDT is of significant interest. To this end, we have designed and synthesized a novel nanoparticle, termed FECTPN, tailored to address this requisite.

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Background: Cognitive deficits and behavioral disorders such as anxiety and depression are common manifestations of Alzheimer's disease (AD). Our previous work demonstrated that Trichostatin A (TSA) could alleviate neuroinflammatory plaques and improve cognitive disorders. AD, anxiety, and depression are all associated with microglial inflammation.

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In current inertial confinement fusion (ICF) facilities, potassium dihydrogen phosphate (KHPO, KDP) type crystals are the only nonlinear optical (NLO) materials that can satisfy the aperture requirement of the ICF laser driver. Ammonium dihydrogen phosphate (NHHPO, ADP) crystal is a typical isomer of KDP crystal, with a large nonlinear optical coefficient, high ultraviolet transmittance, and large growth sizes, which is an important deep ultraviolet (UV) NLO material. In this paper, we investigated the effect of ADP temperature on its fourth-harmonic-generation (FHG) performance.

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Deoxynivalenol (DON) is a common mycotoxin that is widely found in various foods and feeds, posing a potential threat to human and animal health. This study aimed to investigate the protective effect of the natural polyphenol piceatannol (PIC) against DON-induced damage in porcine intestinal epithelial cells (IPEC-J2 cells) and the underlying mechanism. The results showed that PIC promotes IPEC-J2 cell proliferation in a dose-dependent manner.

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Background: The intestinal epithelium is one of the fastest self-renewal tissues in the body, and glutamine plays a crucial role in providing carbon and nitrogen for biosynthesis. In intestinal homeostasis, phosphorylation-mediated signaling networks that cause altered cell proliferation, differentiation, and metabolic regulation have been observed. However, our understanding of how glutamine affects protein phosphorylation in the intestinal epithelium is limited, and identifying the essential signaling pathways involved in regulating intestinal epithelial cell growth is particularly challenging.

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Bismuth vanadate (BiVO/BVO) has been widely studied as a photocatalytic water splitting semiconductor material in recent years because of its many advantages, such as its ease of synthesis and suitable band gap (2.4 eV). However, BVO still has some disadvantages, one of which is the low photocatalytic water oxidation activity.

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Achieving intelligent detection of defective leaves of hydroponic lettuce after harvesting is of great significance for ensuring the quality and value of hydroponic lettuce. In order to improve the detection accuracy and efficiency of hydroponic lettuce defective leaves, firstly, an image acquisition system is designed and used to complete image acquisition for defective leaves of hydroponic lettuce. Secondly, this study proposed EBG_YOLOv5 model which optimized the YOLOv5 model by integrating the attention mechanism ECA in the backbone and introducing bidirectional feature pyramid and GSConv modules in the neck.

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Borophene, a promising material with potential applications in electronics, energy storage, and sensors, is successfully grown as a monolayer on Ag(111), Cu(111), and Au(111) surfaces using molecular beam epitaxy. The growth of two-dimensional borophene on Ag(111) and Au(111) is proposed to occur via surface adsorption and boron segregation, respectively. However, the growth mode of borophene on Cu(111) remains unclear.

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