Search Results - Wei Feng

We investigate the quantum dissipative dynamics near the stable states (attractors) of a driven Duffing oscillator. A refined perturbation theory that can treat two perturbative parameters with different orders is developed to calculate the quantum properties of the Duffing oscillator near the attra...

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In recent years, hybrid chaotic image encryption schemes combined with the DNA encryption technology or other technologies have become a research focus of many researchers. However, some researchers neglect security analyses of proposed schemes under the chosen plaintext attack, therefore leaving se...

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To understand the effects of different cropping systems on soil exchangeable Mg, samples of soil profiles under six types of different cropping systems were collected from long-term location experiment station, Changwu County, Shaanxi Province. The changing conditions of exchangeable Mg in soil prof...

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<h4>Background</h4>Published data on the relationship between matrix metalloproteinases (MMPs) polymorphisms and ovarian cancer risk have implicated inconclusive results. To evaluate the role of MMPs polymorphisms in ovarian cancer risk, a meta-analysis and systematic review were perform...

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This article presents a descriptive review focused on the proximal tibiofibular joint (PTFJ), a synovial plane joint located posterolaterally beneath the lateral tibial plateau. The PTFJ facilitates axial load transmission, allows subtle tibiofibular motion, and works in conjunction with the distal...

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Plants maintain water balance by varying hydraulic properties, and plasma membrane intrinsic proteins (PIPs) may be involved in this process. Leaf xylem and root hydraulic conductivity and the mRNA contents of four highly expressed ZmPIP genes (ZmPIP1;1, ZmPIP1;2, ZmPIP2;2, and ZmPIP2;5) in maize (Z...

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Objective: This study aimed to investigate the effects of polymyxin B (PMB) in combination with other antibiotics on delaying resistance in Klebsiella pneumoniae and to explore the mechanisms underlying PMB-induced resistance. Methods: In vitro continuous induction experiments were performed to obse...

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The widespread adoption of 5G technology has exacerbated electromagnetic pollution due to the extensive deployment of high-frequency, energy-intensive electronic devices. This has, in turn, heightened the demand for the development of high-performance electromagnetic shielding materials. MXenes, a...

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BackgroundIntrahepatic cholangiocarcinoma (iCCA) is a malignant tumor second only to hepatocellular carcinoma in terms of incidence among primary liver cancers. Surgical resection is currently the preferred treatment for iCCA. However, the prognostic significance, complications, and clinical benefit...

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In this article, we assess the accuracy of the surface water and ocean topography (SWOT) mission for deriving marine gravity anomalies and bathymetry in the Philippine Sea using wide-swath L3 Ka-band radar interferometer data. Our evaluation includes determining the deflection of vertical (DOV) usin...

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A series of Al0.1CoCrFeNi-xNb (x = 0, 1, 3, 5, 7, 9 wt%) high-entropy alloys (HEAs) were prepared using high-energy ball milling and Spark Plasma Sintering (SPS) methods. The influence of Nb element doping on the microstructure and properties of Al0.1CoCrFeNi HEAs was systematically studied through...

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In this work, a foam composed of helical carbon nanofiber arrays was successfully synthesized via chemical vapor deposition. By controlling synthesis parameters including the synthesising temperature and gas flow rate, carbon nanofibers with straight, kinked, and spring-like morphologies were obtain...

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木聚糖酶（1，4-β-xylanase，EC 3.2.1.8）以内切方式水解木聚糖分子中β-1，4-木糖苷键，其水解产物主要为木二糖及木二糖以上的寡聚木糖，也有少量的木糖和阿拉伯糖．该酶不仅对于降解自然界大量存在的半纤维素起着重要作用，而且也具有潜在的应用前景，如在造纸工业中用它作为纸浆的漂白剂，饲料工业中可提高纤维类饲料的消化利用率．β-1，3-1，4-葡聚糖酶（EC 3.2.1.73）能分解大麦中以β-1，3和β-1，4混合键连接的结构性非淀粉多糖β-D-葡聚糖，属于半纤维素物质．在啤酒工业中应用β-1，3-1，4-葡聚糖酶，可提高麦汁分离速度，减少啤酒混浊度和胶状沉淀物，从而改善啤酒质量...

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Abstract Satellite gravimetry (Gravity Recovery and Climate Experiment (GRACE)/GRACE Follow‐On (GFO)) has solved the challenge of monitoring global and basin‐scale terrestrial water storage anomalies (TWSA) at monthly intervals and spatial scales of ∼330 km. However, this spatial resolution limits i...

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Self-powered photoelectrochemical-type (PEC) ultraviolet photodetectors (UV PDs) have been rapidly developed owing to their low-cost fabrication and good photodetection. However, achieving high-performance and self-powered PEC UV PDs based on an individual material is still challenging. Therefore, d...

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Multi-source remote sensing spatiotemporal fusion aims to enhance the temporal continuity of high-spatial, low-temporal-resolution images. In recent years, deep learning-based spatiotemporal fusion methods have achieved significant progress in this field. However, existing methods face three major c...

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Coccidiosis is caused by intra-cellular infection of Eimeria spp., which goes through a complex life cycle in the intestinal mucosa of infected hosts. Specific immunoglobulins (IgY) could be produced in egg yolk by immunizing hens with specific antigens. In the present study, we cloned the E. maxima...

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Functional electrical stimulation has become a commonly used and effective method for the rehabilitation of stroke in hospitals. However, due to the large size of the therapeutic apparatus, the fixed training location, and the single electrical stimulation mode, a wearable four-channel functional el...

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Soil salinization hinders plant growth and agricultural production, so breeding salt-tolerant crops is an economical way to exploit saline–alkali soils. However, the specific metabolites and associated pathways involved in salt tolerance of the dandelion have not been clearly elucidated so far. Here...

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A pot experiment was carried out to study the effects of nitrogen application rates (0, 150 and 300 mg N·kg^-1 soil) on antioxidant contents and antioxidative activities in two cultivars (Shuzhouqing and Dongfei) of Chinese cabbage (Brassica chinensis L.). Results show that fre...

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