Search Results - Ping LU

Shallow earthquakes are among the most devastating natural hazards, and aerosol anomalies offer insights into crust–atmosphere interactions critical for earthquake forecasting and environmental assessment. However, standardized anomaly extraction protocols—especially whether to center analyses on ep...

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A widely tunable 2 μm fiber laser based on a modified Sagnac filter incorporating cascaded polarization maintaining fibers (PMF) is proposed and demonstrated. The modified Sagnac filter consists of two cascaded PMFs which have a 45° angle offset between their fast ax...

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The nonsense-mediated mRNA decay (NMD) is extensively involved in physiological, pathological, and stress response processes in humans and plants. However, the NMD in phytopathogenic fungi has not yet been thoroughly investigated. In this study, we identified and performed domain analysis on the cor...

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Aeromonas hydrophila isolates from clinical cases (n=43) were tested against 8 antimicrobial agents and typed by outer membrane protein (OMP) pattern by using sodium dodecyl sulfate gel electrophoresis. All isolates were resistant to ampicillin (MICs, ≥16 μg mL−1) and sulfamonomethoxine (MICs, ≥64 μ...

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The <i>swnR</i> gene was cloned in the endophytic fungus <i>Alternaria oxytropis</i> OW 7.8 isolated from <i>Oxytropis glabra</i>, and the gene knockout mutant Δ<i>swnR</i> was first constructed in this study. Compared with <i>A. oxytropis</i&...

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Abstract: Understanding the waxy maize starch physicochemical properties response to heat stress during grain filling could improve starch quality. The effects of heat stress during early (1–15 days after pollination, DAP) and late (16–30 DAP) grain filling stages on the starch physicochemical prope...

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The presence of abundant and diverse communities of macro-arthropods is considered an indicator of sustainability in agroecosystems. This study was designed to investigate the effects of different fertilizer treatments on abundance and diversity of insects of arable loess soil on the Loess Plateau o...

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A simple and efficient manufacture method of helical long period fiber grating (HLPFG) in a single-mode fiber (SMF) is designed and verified through experiment. Different from the previous fabricating methods, the SMF is heated by a double-side CO₂ laser beam after being twist...

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Acoustic measurement is the most widely used non-electric method to detect partial discharge (PD) signals by detect the ultrasonic waves arisen from partial discharge. To solve the shortages of low sensitivity and susceptibility to interferences, a gold diaphragm based Fabry-Perot interferometer ult...

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Streptococcus suis is a Gram-positive pathogen that causes serious diseases in pigs. In addition to S. suis serotype 2 (SS2), S. suis serotype 9 (SS9) is another prevalent serotype, which is frequently isolated from the organs of diseased pigs in China. An immunoproteomic-based approach was develope...

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Excessive or insufficient application of fertilizer has raised broader concerns regarding soil and environmental degradation. One-time application of slow release fertilizer (SF) has been widely used to reduce yield gap with potential maize yield and improve nitrogen use efficiency (NUE). A 2-year f...

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Optimal planting density and proper fertilization method are important factors to improve maize yield and nutrient utilization. A two-year (2016 and 2017) field experiment was conducted with three plant densities (6.0, 7.5 and 9.0 plants m–2) and three fertilization modes (no fertilizer, 0F; one-off...

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ABSTRACT This case report features a patient with an invasive thymoma. The patient presented with an anterior mediastinal mass that invaded the left brachiocephalic trunk vein, resulting in the formation of a carcinoma thrombus in the right atrium, superior vena cava, left brachiocephalic trunk vein...

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Taking the high-temperature Daqu samples of the sauce-flavor (Jiangxiangxing) Baijiu from the core area of Maotai town, Guizhou province (A) and the famous liquor industrial park of Renhuai city (B) as the research objects. The physiochemical indicators, enzyme activities and volatile flavor compoun...

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Waxy maize is widely cultivated under rainfed conditions and frequently suffers water shortage during the late growth stage. In this study, a pot trial was conducted to examine the effects of post-silking drought on leaf photosynthesis and senescence and its influence on grain yield. Two waxy maize...

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Post-silking high temperature is one of the abiotic factors that affects waxy maize (Zea mays L. sinensis Kulesh) growth in southern China. We conducted a pot trial in 2016–2017 to study the effects of post-silking daytime heat stress (35°C) on the activities of enzymes involved in leaf carbon and n...

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A dual Fabry-Perot (FP) interferometric fiber-optic acoustic sensor based on sandwich-structure composite diaphragm is proposed, where fixed phase difference is generated by two FP interferometers (FPIs) with different cavity length. An ellipse fitting differential cross multiplication (EF-DCM) inte...

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A new optical fiber twist sensor with temperature compensation mechanism is designed and experimentally demonstrated. The main structure of this twist sensor is a torsion perturbation point cascaded with single mode-multimode-single mode (SMS) fiber structure. The experimental results show that the...

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A novel fiber sensor for curvature and acoustic wave measurement, which is based on a thin core ultralong period fiber grating (TC-ULPFG), has been proposed and experimentally demonstrated. By tracking the power variation of different resonant wavelength caused by TC-ULPFG, high curvature sensitivit...

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