Publications by authors named "Ming-yu Li"

As an eco-friendly vineyard floor management, mulching can effectively control weeds, preserve soil moisture, reduce irrigation requirements, and modify the grapevine microclimate. However, its impact on the grapevine microclimate, as well as the variation in grape and wine flavonoids across different growth stages under mulching conditions remains insufficiently studied. Therefore, in the vineyard of a semi-arid region, the whole-field mulching (M) of black geotextile mulch was applied to Vitis vinifera Marselan grapevines from anthesis and removed at three phenological stages.

View Article and Find Full Text PDF

Adaptive learning capability of optoelectronic synaptic hardware holds promising application prospects in next generation artificial intelligence, and the development of biometric retina perception is sternly hampered by three crucial issues, including well-balance between excitatory and inhibitory, non-volatile multi-state storage, and optimal energy consumption. In this work, a novel CsAgBiBr/ZnO non-volatile optoelectronic synapse is proposed and successfully programmed with optical excitatory and electronic inhibitory in the light of dual-mechanism: Lead-free perovskite CsAgBiBr guarantees abundant photogenerated carrier concentration, and the process of carrier capture and release occurs in ZnO layer, which can collaboratively modulate various synaptic plasticity behaviors depending on distinct stimulus. Consequently, multi-bit storage is attained with the dual-mechanism non-volatile memory (DNVM) as a function of consecutive light spikes.

View Article and Find Full Text PDF

Infrared solar cells (IRSCs), capable of converting low-energy infrared photons to electron-hole pairs, are promising infrared optoelectronic devices because of their extended utilization region of the solar to short-wavelength infrared region. For PbS QDs IRSCs, charge extraction loss, easily generated at the interfaces, has been one of the dominate obstacles impeding the improvement of device efficiencies due to too many trap states and mismatched energy levels between the photoactive layer and electron transport layer (ETL). Herein, an advanced ZnO ETL was developed to improve the extraction of photogenerated charges from the PbS QD photoactive layer to ETLs.

View Article and Find Full Text PDF

Vitis amurensis grape, an East Asian Vitis species, has excellent cold and disease resistance and exhibits high winemaking potential. In this study, the aroma compounds in grapes from five V. amurensis cultivars ('Beiguohong', 'Beiguolan', 'Shuangfeng', 'Shuanghong', 'Shuangyou') and three interspecific hybrids ('Beibinghong', 'Xuelanhong', 'Zuoyouhong') from two regions (Zuojia and Ji'an, Jilin, China) were identified via HS-SPME-GC/MS.

View Article and Find Full Text PDF

This study aimed to clarify how microclimate diversity altered volatilomics in Cabernet Sauvignon grapes and wines. Four row-oriented vineyards were selected, and metabolites of grapes and wines were determined from separate canopy sides. Results showed that shaded sides received 59% of the solar radiation and experienced 55% of the high-temperature days compared to the exposed sides on average.

View Article and Find Full Text PDF
Article Synopsis
  • The Kasabach-Merritt phenomenon (KMP) is linked to vascular tumors and involves low platelet counts and blood clotting issues; its cause and treatment are not well understood.
  • The study aimed to create an animal model of KMP by transplanting a piece of a Kaposiform hemangioendothelioma (KHE) tumor into nude mice, monitoring platelet levels and tumor characteristics over 16 weeks.
  • Results showed a significant drop in platelet counts shortly after transplantation, with a gradual recovery over time, and tumor analysis indicated changes in structure and composition, confirming the model's relevance for future KMP research and treatment development.
View Article and Find Full Text PDF
Article Synopsis
  • * Although the overall incidence of SAH increased by 37.09% since 1990, age-standardized rates showed a decline, especially in high-income regions; mortality rates and disability-adjusted life years (DALYs) also decreased over time.
  • * The main demographic affected was those aged 50-69, with metabolic risk factors like high blood pressure being the leading contributors to SAH burden, while females generally experienced lower rates than males.
View Article and Find Full Text PDF

The spine grapes (Vitis davidii Foëx.) are wild grape species that grow in southern China, and can be used for table grapes, juicing and winemaking. To systematically investigate the flavor profiles of spine grapes, flavonoids and volatile compounds were detected in five spine grape varieties (Seputao, Ziqiu, Miputao, Tianputao and Baiputao) using HPLC-QqQ-MS/MS and GC-MS.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how metabolic changes, specifically through kynurenine (Kyn), contribute to immune escape in head and neck squamous cell carcinoma (HNSCC).
  • Analysis of tumor and normal tissue from HNSCC patients revealed significant dysregulation of metabolites, particularly amino acids, with Kyn promoting tumor growth and immune evasion.
  • Kyn was found to exhaust CD8 T cells and increase expression of the immune checkpoint Siglec-15, suggesting that targeting the Kyn pathway could enhance T cell function and improve responses to immunotherapy.
View Article and Find Full Text PDF

In this study, 14 abietene and pimarene diterpenoids were isolated from the woods of Agathis dammara. Among them, 4 new compounds, dammarone A-C and dammaric acid A (1-4), were firstly reported, respectively. The structure of the new compounds was determined by HR ESI-MS and 1D/2D NMR spectroscopy, and their absolute configuration was determined by electronic circular dichroism (ECD) exciton chirality method.

View Article and Find Full Text PDF

Infrared (IR) solar cells, capable of converting low-energy IR photons to electron-hole pairs, are promising optoelectronic devices by broadening the utilization range of the solar spectrum to the short-wavelength IR region. The emerging PbS colloidal quantum dot (QD) IR solar cells attract much attention due to their tunable band gaps in the IR region, potential multiple exciton generation, and facile solution processing. In PbS QD solar cells, ZnO is commonly utilized as an electron transport layer (ETL) to establish a depleted heterostructure with a QD photoactive layer.

View Article and Find Full Text PDF

In this study, two new kaurane diterpenes (16, 17), together with 12 lignans (1-12), a triterpene (15), and two other compounds (13, 14) were isolated from the woods of Agathis dammara. The structure of the new compound was determined by HR ESIMS and 1D/2D NMR spectroscopy, and its absolute configuration was determined by electronic circular dichroism (ECD) exciton chirality method. Compounds 5, 11, 14 exhibit significant hypoglycaemic activity in zebrafish, and their mechanism of action is to enhance glucose uptake in zebrafish.

View Article and Find Full Text PDF

Four series of novel pyridine derivatives (17 a-i, 18 a-i, 19 a-e, and 20 a-e) were synthesized and their antimicrobial activities were evaluated. Of all the target compounds, almost half target compounds showed moderate or high antibacterial activity. The 4-F substituted compound 17 d (MIC=0.

View Article and Find Full Text PDF

Nanomaterial technology for the synthesis, processing, and fabrication of low-dimensional materials is where disciplines merge into a remarkable range of applications, from optoelectronics to health care (contribution 1-7), which affect the lives of millions [...

View Article and Find Full Text PDF
Article Synopsis
  • * The researchers developed a stable 0D-2D CsPbBr QD/1,4-bis(4-methylstyryl)benzene (MSB) nanoplate heterostructure using a simple room temperature method, which significantly enhances light emission efficiency.
  • * This innovative approach not only improves stability against humidity and temperature but also achieves a peak external quantum efficiency of 9.67%, making strides towards effective, high-performance green-emitting devices for underwater applications.
View Article and Find Full Text PDF

In this paper, a variety of 2D materials on the surface plasmon resonance sensor based on Al-Ni bimetallic layer are compared. Simulation results indicate that lateral position shift, which is calculated according to the real and imaginary parts of the refractive index of material, can be used as an effective parameter to optimize the sensitivity. By using the parameters for optimizing the SPR structures, the results show that the multiple layer models of Al(40 nm)-Ni(22 nm)-black phosphorus (BP)(1 L) and Al(40 nm)-Ni(22 nm)-blue phosphorus (BlueP)/WS(1 L) exhibit average angular sensitivities of 507.

View Article and Find Full Text PDF

The ionic elements in wine and in vineyards are gaining attention due to characterization of the wine traits, wine origin tracing, and vine nutrient judging. In this experiment, 19 elements were detected by inductively coupled plasma mass spectrometry (ICP-MS) in 69 wine samples from 4 regions, 3 vintages, and 3 grape maturity levels. Furthermore, the elements related to vine development, such as N, P, K, Ca, Mg, Cu, Fe, Zn and Cu in the vineyard soil and petioles were determined.

View Article and Find Full Text PDF

A hybrid device scheme is an attractive strategy in the construction of advanced UV photodetectors due to the flexibility in selecting the components and correspondingly improved optoelectronic properties by the cooperation of various components, which cannot be achieved by a single component device. In this work, a novel hybrid UV photodetector (PD) is demonstrated by adapting AuPt alloy hybrid nanoparticles (AHNPs), ZnO quantum dots (QDs), and graphene quantum dots (GQDs), namely, GQD/ZnO/AHNP PD. The optimized device achieves high-end figure-of-merit performance with a responsivity of 2299 mA/W, detectivity of 7.

View Article and Find Full Text PDF

In this paper, modal interference discrepancy in an all-fiber MZI is theoretically analyzed and experimentally verified. Theoretical analysis demonstrates that ambient refractive index (RI) response of core-cladding modal interference in an all-fiber MZI is blue-shift, while that of cladding-cladding modal interference is red-shift. Temperature response trends of the two kinds of modal interference are uniformly red-shift.

View Article and Find Full Text PDF
Article Synopsis
  • 2D organic-inorganic perovskites show promise for photodetectors but face challenges with carrier transport due to poor thin film continuity.
  • A new method using 0D ZnO quantum dots (QD) combined with 2D (PEA)PbI nanosheets creates better-quality thin films, improving morphology and enhancing carrier separation.
  • By adjusting ZnO QD concentrations, the photodetector's Ion/Ioff ratio significantly increases, resulting in better detectivity, and devices made at 120 °C demonstrate strong stability after multiple tests in air.
View Article and Find Full Text PDF

Objective: To observe the effect of electroacupuncture (EA) of "Zusanli"(ST36) and "Guanyuan"(CV4) on the apoptosis rate of synoviocytes and protein expression of Fas, FasL and Caspase-3 in synovial tissue of adjuvant-induced arthritis (AIA) rats, so as to explore its mechanisms underlying improvement of rheumatoid arthritis (RA).

Methods: A total of 24 rats were randomly divided into normal, model, medication and EA groups, with 6 rats in each group. The AIA model was established by injection of complete Freund's adjuvant (CFA, 0.

View Article and Find Full Text PDF

Pancreatic ductal adenocarcinoma (PDAC) is currently one of the most lethal cancers worldwide. Several basic studies have confirmed that Kirsten rat sarcoma virus (KRAS) is a key driver gene for the occurrence of PDAC, and KRAS mutations have also been found in most patients in clinical studies. In this study, two pan-KRAS inhibitors, BI-2852 and BAY-293, were chosen as chemical probes to investigate their antitumor potency in PDAC.

View Article and Find Full Text PDF

Four new dimeric sorbicillinoids (- and ) and a new monomeric sorbicillinoid () as well as six known analogs (-) were purified from the fungal strain H8, which was obtained from mangrove sediment, and showed potent inhibitory activity against the tea pathogenic fungus (). The planar structures of - were assigned by analyses of their UV, IR, HR-ESI-MS, and NMR spectroscopic data. All the compounds were evaluated for growth inhibition of tea pathogenic fungus .

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessiont2f1k8sh7jkmkqjpd4j7n7o91j36chp4): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once