खोज परिणाम - Huan CHEN

This paper presents a comprehensive review of GaAs HBT-based Doherty power amplifiers (DPAs) targeting 5G New Radio (NR) handset applications. Focusing on the critical challenges of linearity enhancement, back-off efficiency improvement, bandwidth extension under low-voltage (3.4 V) operation, and c...

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The Cox proportional hazards (PH) model is widely used because it models the covariates to the hazard through a log-linear effect. However, exploring flexible effects becomes desirable within the Cox PH framework when only a monotonic relationship between covariates and the hazard is assumed. This w...

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This paper examines the impacts of information about COVID-19 on pig farmers’ production willingness by using endorsement experiments and follow-up surveys conducted in 2020 and 2021 in China. Our results show that, first, farmers were less willing to scale up production when they received informati...

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To enhance the photocatalytic performance of ZnO, the ZnO/g-C₃N₄ (ZCN) composite was prepared by ZnO and g-C₃N₄ under ball milling, and then the ternary graphene oxide (GO)/ZnO/g-C₃N<...

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This study aims to evaluate the current status and relative advantages of the logistics service capabilities of agricultural products e-commerce in Heilongjiang Province, identify its development shortcomings and propose optimization paths. In the context of the rapid development of agricultural pro...

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PurposeThis study aimed to evaluate the therapeutic efficacy, safety, and biocompatibility of calcium alginate hydrogel in suprachoroidal buckling procedures performed on rabbit eyes.MethodsA total of 21 healthy New Zealand White rabbits underwent surgery, during which calcium alginate hydrogel was...

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Monitoring urban public spaces is a vital component of scientific urban planning. This article proposes an improved masked autoencoder (MAE)-based pretraining method for automatic monitoring of urban public spaces with semantic segmentation of optical satellite remote sensing imagery. Different from...

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High-throughput deep-sequencing technology and bioinformatics analysis of the small RNA (sRNA) population isolated from plants allows universal virus detection and complete virome reconstruction for a given sample. In the present sRNA deep-sequencing analysis of virus-infected wheat samples in the C...

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Due to the rapid growth of high-resolution services, low earth orbit satellite-to-ground (LEO-StG) optical communications are expected to provide higher speed and better receiver sensitivity transmission. Here, we propose a phase uniformly distributed circular m-ary quadrature amplitude modulation (...

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Background The expression and prognostic predictive value of programmed death-ligand 2 (PD-L2) in patients undergoing radical gastric cancer (GC) surgery remains unclear.Methods PD-L2 expression in tumor cells (TC) and tumor-infiltrating immune cells (TIIC) was evaluated by immunohistochemistry. Kap...

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Objective: To investigate bergenin's (BE) modulatory effects on gut microbiota dysbiosis and its therapeutic mechanisms in dextran sulfate sodium (DSS)-induced colitis. Methods: Kunming mice (n = 18) were randomized into Control, DSS (2.5 % DSS, 7 days), and DSS + BE (50 mg/kg/day) groups. Dise...

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Gastric cancer is a common and highly lethal malignancy of the digestive system, with surgical resection as the primary treatment approach. However, postoperative analgesia management remains a major clinical challenge. Postoperative pain not only affects recovery speed but may also lead to complica...

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This study evaluated the effectiveness of coupling machine learning algorithms with short-wave infrared hyperspectral imaging in detecting two types of microplastics - polyamide and polyethylene - with the maximum particle sizes of 50 and 300 ​μm, respectively, across three concentration ranges (0.0...

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Tight filtering and fiber Kerr effect both cause severe pattern-dependent distortions that need to be combated to achieve higher spectral efficiency (SE), larger capacity and greater achievable transmission distance in the next generation wavelength division multiplex (WDM) optical transmission syst...

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This trial aimed to investigate the effects of compound essential oils (EO) on the fattening performance, blood physiological–biochemical indices, and intestinal microbiota in late-fattening Simmental crossbred bulls. Twenty healthy Simmental crossbred bulls (Simmental × Charolais × Angus) with simi...

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Clustering by local direction centrality (CDC) is a newly proposed versatile algorithm adept at identifying clusters with heterogeneous density and weak connectivity. Its advantages in accuracy and robustness have been widely validated in computer science, bioscience, and geoscience. However, it has...

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Genetic linkage maps are important for quantitative trait locus (QTL) and marker-assisted selection breeding. The wolfberry (Lycium spp.) is an important food and traditional medicine in China. However, few construction genetic linkage maps have been reported because of the lack of genomic and genet...

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High planting density is essential to increasing maize grain yield. However, single plants suffer from insufficient light under high planting density. Ammonium (NH4+) assimilation consumes less energy converted from radiation than nitrate (NO3−). It is hypothesized that a mixed NO3−/NH4+ supply is m...

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Previous evidence suggested that B lymphocytes may be involved in the progression and prognosis of multiple myeloma (MM). However, the prognostic value of peripheral B lymphocyte counts on MM before and after treatment in the novel agent era was rarely reported. Herein, we conducted a retrospective...

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Abstract The primary cilia serve as pivotal mediators of environmental signals and play crucial roles in neuronal responses. Disruption of ciliary function has been implicated in neuronal circuit disorders and aberrant neuronal excitability. However, the precise mechanisms remain elusive. To study t...

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