Search Results - Ping Ma
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Effects of progressive drought on photosynthesis and partitioning of absorbed light in apple trees
Published 2015-04-01Get full textTo understand how drought stress affects CO2 assimilation and energy partitioning in apple (Malus domestica Borkh.), we investigated photosynthesis and photo-protective mechanisms when irrigation was withheld from potted Fuji trees. As the drought progressing, soil relative water content (SRWC) decr...
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Topology Analysis and Modeling Comparison of SI-SIMO Boost Converter Used in Multiple Output Applications
Published 2025-07-01Get full textThis paper presents the analysis and modeling of a single-input, single-inductor, multiple-output (SI-SIMO) boost converter to address limitations of conventional SISO converters in distributed power supply applications. Based on switching-state analysis, a sequential PWM modulation strategy is prop...
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Effects of light intensity on photosynthesis and photoprotective mechanisms in apple under progressive drought
Published 2015-09-01Get full textThe effects of light intensity on photosynthesis and photoprotective mechanisms under progressive drought were studied on apple trees (Malus domestica Borkh.) Fuji. The potted trees were exposed to drought stress for 12 days and different light conditions (100, 60 and 25% sunlight). During the progr...
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Isorhamnetin alleviates symptoms and inhibits oxidative stress levels in rats with pulmonary arterial hypertension
Published 2024-12-01Get full textObjective(s): Pulmonary arterial hypertension (PAH) is a malignant pulmonary vascular disease with high mortality. Isorhamnetin (ISO), one of the main natural flavonoids extracted from sea buckthorn, has pharmacological effects such as anti-inflammatory, anti-proliferative and antioxidant. This stud...
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Transcriptomics Analysis of the Mechanism Underlying the Synthesis of Phenolic Compounds in Fresh-Cut Red Cabbage under Ultrasound Stress
Published 2025-07-01Get full textTo investigate the molecular mechanism of ultrasound-induced phenolic synthesis in fresh-cut fruits and vegetables, transcriptome sequencing and bioinformatics analyses were carried out on fresh-cut red cabbage washed with and without the assistance of ultrasound at different storage periods. The re...
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Optimization Design Method of Pipe-Insulating Joints Based on Surrogate Model and Genetic Algorithm
Published 2025-07-01Get full textPipe-insulating joints are common cathodic protection devices in long-distance oil and gas pipeline infrastructures. To ensure safety, they are often designed too conservatively, resulting in large dimensions, high self-weight, and substantial costs. This study analyzed an insulating joint under the...
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Short-term displacement prediction for newly established monitoring slopes based on transfer learning
Published 2024-04-01Get full textABSTRACT: This study makes a significant progress in addressing the challenges of short-term slope displacement prediction in the Universal Landslide Monitoring Program, an unprecedented disaster mitigation program in China, where lots of newly established monitoring slopes lack sufficient historica...
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Physical and Electrical Properties of Silicon Nitride Thin Films with Different Nitrogen–Oxygen Ratios
Published 2025-06-01Get full textSilicon oxynitride (SiO<sub>x</sub>N<sub>y</sub>, hereafter denoted as SiON) thin films represent an intermediate phase between silicon dioxide (SiO<sub>2</sub>) and silicon nitride (Si<sub>3</sub>N<sub>4</sub>). Through systematic composit...
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The West Dallas environmental health project: the importance of community health experiences related to air pollution
Published 2025-07-01Get full textRacial and ethnic minorities experience a disproportionate exposure to air pollutants, such as fine particulate matter (PM2.5) and nitrogen dioxide (NO2), due to historical racial zoning increasing in proximity to industrial facilities. PM2.5 is associated with several adverse health effects includi...
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Synergies of dibutyl phthalate on high-fat diet can aggravate cardiac fibrosis/dysfunction and the protective effects of vitamin E and salidroside: A molecular toxicological study...
Published 2025-09-01Get full textBackground: Dibutyl phthalate (DBP) is a pollutant associated with plastic contamination and is commonly used as a plasticizer. It is linked to various adverse health effects, including cardiovascular disease (CVD). There is an association between DBP and high-fat diet (HFD), with HFD also contribut...
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The PhoR/PhoP two-component system regulates fengycin production in Bacillus subtilis NCD-2 under low-phosphate conditions
Published 2018-01-01Get full textBacillus subtilis strain NCD-2 is an excellent biocontrol agent for plant soil-borne diseases, and the lipopeptide fengycin is one of the active antifungal compounds in strain NCD-2. The regulator PhoP and its sensor kinase PhoR compose a two-component system in B. subtilis. In this study, the phoR-...
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Attenuation of Virulent Porcine Reproductive and Respiratory Syndrome Virus Strain CH-1a and Genetic Variation of ORF5 Gene
Published 2012-12-01Get full textTo develop a modified live vaccine (MLV) against porcine reproductive and respiratory syndrome virus (PRRSV), virulent CH-1a strain was attenuated by serial passages up to 130 passage (P130) in Marc-145 cells. The virulence and immune efficacy of the attenuated CH-1a were evaluated in pigs. The resu...
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Diagnostic Accuracy of Natriuretic Peptides for Heart Failure in Patients with Pleural Effusion: A Systematic Review and Updated Meta-Analysis.
Published 2015-01-01Get full text<h4>Background</h4>Previous studies have reported that natriuretic peptides in the blood and pleural fluid (PF) are effective diagnostic markers for heart failure (HF). These natriuretic peptides include N-terminal pro-brain natriuretic peptide (NT-proBNP), brain natriuretic peptide (BNP...
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