240 results match your criteria: "Qiannan Normal University for Nationalities[Affiliation]"

OsNCED5 confers cold stress tolerance through regulating ROS homeostasis in rice.

Plant Physiol Biochem

December 2024

Hunan Province Key Laboratory of Crop Sterile Germplasm Resource Innovation and Application, College of Life Sciences, Hunan Normal University, Changsha, 410081, China.

Cold stress is one of the most serious abiotic stresses that affects the growth and yield in rice. However, the molecular mechanism by which abscisic acid (ABA) regulates plant cold stress tolerance is not yet clear. In this study, we identified a member of the OsNCED (9-cis-epoxycarotenoid dioxygenase) gene family, OsNCED5, which confers cold stress tolerance in rice.

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DNA storage is widely considered as a promising solution to the data explosion problem. However, the synthesis, PCR and sequencing processes usually result in erroneous reads involving base insertions, deletions, and substitutions. Specially this situation is even more serious in the 3rd generation of sequencing technologies.

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Optimization of thermophysical properties (TPPs) of MXene-based nanofluids is essential to increase the performance of hybrid solar photovoltaic and thermal (PV/T) systems. This study proposes a hybrid approach to optimize the TPPs of MXene-based Ionanofluids. The input variables are the MXene mass fraction (MF) and temperature.

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The bean beetle (Callosobruchus maculatus) clearly exhibits population density-dependent polymorphism. Cytochrome P450 (CYP) is involved in many aspects of the physiological activities of insects. However, the role of CYP in population density-dependent polymorphisms remains unknown.

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Rice (Oryza sativa L.) is susceptible to various abiotic stresses, such as salt, cold, and drought. Therefore, there is an urgent need to explore the relevant genes that enhance tolerance to these stresses.

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Piezoelectric Ultrasonic Local Resonant Ultra-Precision Grinding for Hard-Brittle Materials.

Micromachines (Basel)

September 2024

School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China.

Hard-brittle materials are widely used in the optics, electronics, and aviation industries, but their high hardness and brittleness make it challenging for traditional processing methods to achieve high efficiency and superior surface quality. This study aims to investigate the application of ultrasonic local resonant grinding to sapphire to improve the efficiency and meet the requirements for the optical window in the surface roughness of the material. The resonant frequency of a piezoelectric ultrasonic vibration system and the vibration amplitude of a grinding head's working face were simulated and tested, respectively.

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Early screening of breast cancer through image recognition technology can significantly increase the survival rate of patients. Therefore, breast cancer pathological image is of great significance for medical diagnosis and clinical research. In recent years, numerous deep learning models have been applied to breast cancer image classification, with deep CNN being a typical representative.

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Our study attempts to address the following questions: among numerous photosynthetic modules, which parameters notably influence the rapid chlorophyll fluorescence (ChlF) rise, the so-called O-J-I-P transient, in conjunction with the P515 signal, as these two records are easily obtained and widely used in photosynthesis research, and how are these parameters ranked in terms of their importance? These questions might be difficult to answer solely through experimental assays. Therefore, we employed an established photosynthesis model. Firstly, we utilized the model to simulate the measured rapid ChlF rise and P515 kinetics simultaneously.

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Urban-rural development is an important driving force for regional economic growth. The existing researches have studied this issue from various perspectives, but they ignore the impact of big data on the economy. In the post pandemic era, big data, as an emerging production factor, has a significant indicative effect in promoting urban-rural economic recovery and fostering new business forms.

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Long-lasting anti-corrosion direct-to-metal polyurethane NP-GLIDE coatings based on the coordination effect and dual cross-linking of polyphenol.

J Colloid Interface Sci

January 2025

School of Chemistry and Environment, Jiaying University, Meizhou, Guangdong 514000, P. R. China; State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P.R. China; Greater Bay Area Institute for Innovation, Hunan University, Shenzhen, Guangdong 510000, P.R. China; Sokan Research Institute of Advanced Surface Treatment and Functional Coatings, Changsha, Hunan 410600, P.R. China. Electronic address:

Aluminum and its alloys have been widely used in our lives. However, Aluminum and its alloys is prone to corrosion, especially in harsh environment. In recent years, hydrophobic coatings were used in the corrosion protection of metal.

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Article Synopsis
  • Suspensions with microencapsulated phase change materials (MPCMs) are important in thermal energy storage systems used in buildings, textiles, and cooling technologies.
  • The study employs Gaussian process regression (GPR) to predict the dynamic viscosity of these suspensions, optimizing twelve hyperparameters using genetic algorithm, particle swarm optimization, and marine predators algorithm.
  • By focusing on the most significant hyperparameters, the best GPR model achieved an impressive R-value of 0.999224, indicating high accuracy and potential cost savings for related applications.
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Article Synopsis
  • The research investigates the use of a nanocomposite made from multi-walled carbon nanotubes and graphene nanoplatelets for improving thermal engineering applications.
  • The study analyzes heat transfer and pressure drop characteristics in water at various concentrations and temperatures using computational fluid dynamics and artificial neural networks.
  • Results indicate that increasing inlet temperatures and nanocomposite concentrations significantly boosts heat transfer and pressure drop, highlighting the potential of these materials to enhance thermal system performance.
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A Deniable Encryption Method for Modulation-Based DNA Storage.

Interdiscip Sci

December 2024

Institute of Computing Science and Technology, Guangzhou University, Guangzhou, 510006, China.

Recent advancements in synthesis and sequencing techniques have made deoxyribonucleic acid (DNA) a promising alternative for next-generation digital storage. As it approaches practical application, ensuring the security of DNA-stored information has become a critical problem. Deniable encryption allows the decryption of different information from the same ciphertext, ensuring that the "plausible" fake information can be provided when users are coerced to reveal the real information.

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Multimodal multi-objective optimization algorithm based on hierarchical environment selection strategy.

PeerJ Comput Sci

July 2024

Qiannan Normal University for Nationalities, Key Laboratory of Complex Systems and Intelligent Optimization of Guizhou Province, School of Computer and Information, Duyun, China.

The article proposes an optimization algorithm using a hierarchical environment selection strategyto solve the deficiencies of current multimodal multi-objective optimization algorithms in obtaining the completeness and convergence of Pareto optimal Sets (PSs). Firstly, the algorithm in this article is framed by a differential evolutionary algorithm (DE) and uses a special crowding distance to design a neighborhood-based individual variation strategy, which also ensures the diversity, and then special crowding distance is used to help populations with non-dominated sorting. In the stage of environmental selection, a strategy of hierarchical selection of individuals was designed, which selects sorted non-dominant ranked individual layer by layer according to the ratio, which allows potential individuals tobe explored.

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The maximum clique problem in graph theory is a well-known challenge that involves identifying the complete subgraph with the highest number of nodes in a given graph, which is a problem that is hard for nondeterministic polynomial time (NP-hard problem). While finding the exact application of the maximum clique problem in the real world is difficult, the relaxed clique model quasi-clique has emerged and is widely applied in fields such as bioinformatics and social network analysis. This study focuses on the maximum quasi-clique problem and introduces two algorithms, NF1 and NR1.

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As one of the essential topological structures in complex networks, community structure has significant theoretical and application value and has attracted the attention of researchers in many fields. In a social network, individuals may belong to different communities simultaneously, such as a workgroup and a hobby group. Therefore, overlapping community discovery can help us understand and model the network structure of these multiple relationships more accurately.

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The structural characteristics and macromolecular model of lignite are important for its effective utilization. In this paper, Yunnan (YN) lignite was taken as the study object, and deashing pretreatment was carried out to remove the influence of minerals in lignite before spectroscopic analysis. Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and C nuclear magnetic resonance (NMR) spectroscopy of deashed lignite and gas chromatography and mass spectrometry (GC/MS) of methanol lignite extract were subsequently performed.

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Objective: Mental health significantly affects the physical and emotional development of adolescents. The aim of the current study was to examine how physical activity (PA) and mental health among Korean adolescents changed before and after the start of the COVID-19 pandemic.

Methods: We used comparative cross-sectional methods, gathering information from the Korea Disease Control and Prevention Agency databases and conducting Chi-square testing and correlation analysis for evaluation.

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Article Synopsis
  • This study focuses on a newly isolated lytic phage, A1432, from a karst cave, which shows promise as an alternative treatment for infections caused by antibiotic-resistant bacteria, specifically targeting the opportunistic pathogen YCR3A-1.
  • Phage A1432 exhibits distinct structural features, including an icosahedral head and a shorter tail, and demonstrates effective bacteriolytic activity at a specific multiplicity of infection.
  • Genomic analysis reveals that phage A1432 has a genome length of 61,660 bp, shares 81.46% similarity with another phage, and appears to belong to a novel genus, indicating significant genetic diversity among isolated phages
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Screening rate constants in the simulation of rapid kinetics of chlorophyll fluorescence using the Morris method.

Front Plant Sci

June 2024

Laboratory of Plant Physiology and Morphology, Department of Crop Production, Agricultural University of Athens, Athens, Greece.

Chlorophyll fluorescence, a sensitive and cost-effective probe, is widely used in photosynthetic research. Its rapid phase, occurring within 1 second under intense illumination, displays complex O-J-I-P transients, providing valuable insights into various aspects of photosynthesis. In addition to employing experimental approaches to measure the rapid Fluorescence Induction (FI) kinetics, mathematical modeling serves as a crucial tool for understanding the underlying mechanisms that drive FI dynamics.

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Hypothalamic transcriptome profile from laying period to incubation period of Changshun green-shell laying hens.

Poult Sci

August 2024

College of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China; Qiannan Key Laboratory of Applied Biotechnology for Livestock and Poultry, Duyun 558000, China.

Incubation behavior in chickens is closely associated with hypothalamus. Here, RNA sequencing of hypothalamus from Changshun green-shell laying hens, an indigenous chicken breed from China, in egg-laying period (LP) and incubation period (BP) was conducted to identify critical pathways and candidate genes involved in controlling the incubation behavior in hypothalamus. A total of 637 up-regulated and 305 down-regulated differently expressed genes (DEGs) were identified in chicken hypothalamus between LP and BP groups.

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This study investigated a novel electrocatalyst with a core-shell structure of CoNiP@N,P-C. The unique carbon shell of this catalyst serves a dual purpose: exposing numerous active sites and safeguarding CoNiP nanoparticles from dissolution caused by the electrolyte. As a result, the CoNiP@N,P-C nanoparticles exhibit exceptional electrochemical properties.

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In today's increasingly popular Internet of Things (IoT) technology, its energy consumption issue is also becoming increasingly prominent. Currently, the application of Mobile Edge Computing (MEC) in IoT is becoming increasingly important, and scheduling its tasks to save energy is imperative. To address the aforementioned issues, we propose a Multi-User Multi-Server (MUMS) scheduling framework aimed at reducing the energy consumption in MEC.

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Viral infection can regulate the cell cycle, thereby promoting viral replication. Hijacking and altering the cell cycle are important for the virus to establish and maintain a latent infection. Previously, Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV)-latently infected P8-Se301-C1 cells, which grew more slowly than Se301 cells and interfered with homologous SeMNNPV superinfection, were established.

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As a UNESCO World Cultural Heritage, the aesthetic value of bronze artifacts from the Shang and Chow Dynasties has had a profound influence on Chinese traditional culture and art. To facilitate the digital preservation and protection of these Shang and Chow bronze artifacts (SCB), it becomes imperative to categorize their decorative patterns. Therefore, a SCB pattern classification method of differential evolution called Shang and Chow Bronze Convolutional Neural Network (SCB-CNN) is proposed.

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