Search Results - CHEN Xi

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Polychlorinated biphenyls (PCBs) are typical pollutants in soil. Nanoscale zero-valent iron (nZVI) can effectively dechlorinate high-chlorinated PCBs into low-chlorinated PCBs which can be more easily degraded by microorganisms. In this study, soil samples contaminated by PCBs were collected from an...

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Insects play an indispensable role in ecosystems, and studies on their chromosome evolution are crucial for understanding mechanisms of speciation, trait evolution and environmental adaptation. This paper systematically summarized the research progress in the field of insect chromosome evolution, fo...

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The study of radar target characteristics and stealth performance of low altitude helicopters at sea can provide a basis for path planning. a random rough sea surface model is established in this paper. Based on the high frequency approximation method, the radar target characteristics of helicopters...

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Lepidoptera, which include moths and butterflies, play important roles in biodiversity, and many species are important agricultural pests that damage a wide range of crops, resulting in substantial economic losses to agriculture. This review summarized recent advances in the origin and evolution mec...

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Chiggers are the exclusive vector of scrub typhus, and Leptotrombidium yongshengense (Acari: Trombiculidae)is one of over 3,000 chigger species recorded. This paper reports the distribution and host selection of L. yongshengense in Southwest China for the first time. Leptotrombidium yongshengense w...

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Chiggers are the exclusive vector of scrub typhus, and Leptotrombidium yongshengense (Acari: Trombiculidae)is one of over 3,000 chigger species recorded. This paper reports the distribution and host selection of L. yongshengense in Southwest China for the first time. Leptotrombidium yongshengense w...

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This study primarily utilized stem segments of two wild species of Paeonia anomala and Paeonia intermedia as experimental materials. Plant growth regulators such as 6-benzylaminopurine (6-BA), naphthalene acetic acid (NAA), thidiazuron (TDZ), and 2, 4-dichlorophenoxyacetic acid (2, 4-D) were added t...

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To address the application requirements of indicator question-and-answer (Q&A) in the electricity industry, this paper researches a natural language understanding model for balancing performance, computing resource consumption, and inference time, and proposes a method to incorporate an early st...

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Plutonium is a highly toxic transuranic element in high-level radioactive waste. Because of the variety of species of plutonium, it has a serious potential to migrate to the ecological environment in the process of deep geological disposal. The deep geological disposal project of high-level radioact...

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Objective: The absorbed prototypes and metabolites of traditional Chinese medicines in vivo are crucial for identifying their biological functions. However, comprehensive profiling of constituents in vivo is difficult owing to endogenous interference and low metabolite abundance. Therefore, a system...

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An efficient intramolecular domino cyclization/Friedel–Crafts type transformation of N-(alkenyl)-amide-1,6-enynes has been developed under silver, gold, and platinum catalysis. The optimization of this process in the presence of silver complexes led to functionalized tri- and tetracyclic derivatives...

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To address the challenges of rapid production decline and low recovery of shale oil wells, it is imperative to supplement formation energy and explore innovative development methods. Compared with conventional waterflooding, CO2 exhibits superior injectivity and miscibility with crude oil, making it...

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In this study, the effectiveness of four concentrations (0, 0.01, 0.1 and 1.0 mmol/L) of sodium dehydroacetate (SD) in prolonging the shelf life of macadamia nut was evaluated. The results showed that the quality of the untreated nut declined during postharvest storage, and both mass loss rate and d...

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Environmental pollution plays a major role in the development of prostate cancer (PCA). However, there has been no research on machine learning (ML) modelling between multiple heavy metal exposures and PCA risk. Based on the 8022 samples from the 2003–2018 National Health and Nutrition Examination S...

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This study investigated the changes in microbial community structure and flavor substances of high-temperature Daqu before and after the turning over as the key step in the production process. The results showed that during the turning over stage, the composition and abundance of the microbial commu...

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With the long-term use of Bacillus thuringiensis (Bt) insecticide and expansion of Cry1A-expressing transgenic plants, some insect pests have developed resistance to Bt in open fields, greenhouses, and in the laboratory. Bt resistance is complex and there appear to be different ways for resistance d...

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Emerging evidence links bisphenol A (BPA) to insulin resistance, but the underlying mechanisms remain unclear. In this study, lactating mother mice and their male offspring post-weaning were exposed to bisphenol A (BPA) via drinking water at human-relevant (2.5 μg/L) and high human-relevant (25 μg/L...

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Drought stress affects the growth and productivity of crop plants including sorghum. To study the molecular basis of drought tolerance in sorghum, we conducted the transcriptomic profiling of sorghum leaves and roots under drought stress using RNA-Seq method. A total of 510, 559, and 3 687 different...

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