Search Results - Wei Wen

This paper proposes an energy-efficient asymmetrically clipped direct-current (DC) biased optical orthogonal frequency division multiplexing (EEADO-OFDM) scheme, which replaces the fixed DC bias of DC biased optical OFDM (DCO-OFDM) branch with a adaptive DC bias for optical wireless communications....

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Compared to the direct current (DC) biased optical OFDM (DCO-OFDM) and asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) schemes, the asymmetrically clipped DC biased optical OFDM (ADO-OFDM) has demonstrated a better balance between optical power efficiency and spe...

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This paper proposes a novel peak-to-average power ratio (PAPR) reduction scheme, which has several advantages, such as low-complexity candidate construction and no side information (SI) transmission in direct current-biased optical orthogonal frequency division multiplexing (DCO-OFDM) visible light...

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In this study, GIS and geostatistics technology were applied to analyze the spatial variability of soil organic matter, total nitrogen, available phosphorous and available potassium in paddy field in Pinghu County. Meanwhile, the spatial patterns of four soil properties were generated by ordinary kr...

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It is well known that visible light communication (VLC) systems with the direct current-biased optical orthogonal frequency division multiplexing (DCO-OFDM) scheme suffers from high peak-to-average power ratio (PAPR), which leads to serve distortion and degradation of the output of light emitting di...

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Collagen peptide was identified as a prebiotic that can provide nitrogen and carbon sources for probiotics to achieve antiobesity, anti-inflammatory, antioxidant, and immunoregulatory effects by improving the gut microbiota. Also, obesity is a high-risk factor for psychological and cognitive disease...

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Ultrasound - assisted pulse electrodeposition is a preferred method for producing nanocomposite coating, with combining the effects of ultrasonic acoustic cavitation which benefited de - agglomeration and agitation effects, and the characters of pulsing current such as high instantaneous current den...

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Control efficacy and effects on postharvest storage quality of thyme oil in combination with different concentrations of sodium carbonate (SB) against postharvest disease caused by Geotrichum citri-aurantii in Ponkan fruit were investigated. The results indicated that combining thyme oil with SB pro...

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Malignant hyperthermia (MH) is a rare, life-threatening hypermetabolic reaction to volatile anaesthetics and succinylcholine. Management of MH-susceptible patients undergoing elective surgery has been reported; however, concurrent transplant surgeries involving two MH-susceptible patients pose uniqu...

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Insect quantity is an important index for determining the degree of damage to plants. The brown planthopper (BPH), Nilaparvata lugens (Stål), is one of the most important rice pests in Asia. Here, we used two genotypes of BPH, a high-fecundity genotype (HFG) and a low-fecundity genotype (LFG), to me...

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PurposeGastrointestinal (GI) symptoms are prevalent among endurance athletes, especially marathon runners, and can negatively affect performance and wellbeing. However, data on the prevalence and nutritional contributors to GI symptoms in Chinese recreational long distance runners remain limited. Th...

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Visible reflectance spectroscopy technique combined with three chemometrics methods were applied to predict the age of bloodstains for forensic purposes. The performance of models established by principal component regression (PCR), partial least-squares regression (PLSR), and least-squares-support...

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Medical endoscopes can diagnose effectively diseased organs in a patient's body. During the process of therapeutic endoscopic intervention , 山e diagnosis and treatment results mainly depend on the design structure and imaging principle of the endoscope. lnte1>1entional process is prone to di...

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A reporter vector under the transcriptional control of thymidine kinase (TK) promoter and the regulation of anti-oxidative response element (ARE) was constructed so as to screen the chemopreventive agents. The recombinant TK promoter was amplified by three times PCR and subcloned into pMD18-T vector...

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Abstract BackgroundThere has been an increase in the prevalence of noncommunicable diseases in Malaysia. This can be prevented and managed through the adoption of healthy lifestyle behaviors, including not smoking, avoiding alcohol consumption, maintaining a balanced diet, and...

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Citrus Huanglongbing (HLB, yellow shoot disease) was first observed in the coastal Chaoshan Plain of Guangdong Province, China, in the late 19th century based on descriptions of yellow shoot symptoms. “Candidatus Liberibacter asiaticus” has been considered as a putative pathogen associated with HLB...

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Background The increasing popularity of marathon running in China highlights the need to better understand the dietary habits and nutritional needs of marathon runners to optimize performance and health outcomes. The study aimed to assess the dietary behaviors, nutritional knowledge, and running-spe...

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For various sexually mature insects, including the brown planthopper (BPH, Nilaparvata lugens), the abdominal vibration (AV) signal is the initiation of the mating process, and it is critical to the success of mating. Currently, there are few studies on the genetic and molecular mechanisms of AV reg...

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BackgroundTranscatheter closure of patent foramen ovale (PFO) has shown potential therapeutic benefits for clinical symptoms in selected patients with migraine. Nevertheless, the comparative effectiveness and safety of traditional nitinol vs. fully biodegradable occluders remain to be fully elucidat...

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