Publications by authors named "Hongwu Qin"

Article Synopsis
  • Data on the blockchain is secure from tampering, but insider threats can still leak sensitive information; thus, access records are crucial for tracing breaches, though they can also be altered.
  • To safeguard these access records, the paper introduces a novel storage mechanism using a master-slave block structure in a consortium chain, where the master block holds the data and the slave block contains the access records.
  • Real-world experiments demonstrate that this new storage approach not only enhances the security and traceability of access records but also improves data query performance compared to traditional single chain methods.
View Article and Find Full Text PDF

Faced with the increasing complexity and uncertainty of decision-making information, interval-valued Fermatean hesitant fuzzy sets (IVFHFSs) were presented as a novel mathematical model that handled uncertain data more effectively. However, existing multi-attribute group decision-making (MAGDM) methods based on IVFHFSs do not thoroughly investigate the operational laws. Also, these existing MAGDM methods do not take into account the connections between attributes and are less flexible.

View Article and Find Full Text PDF

Interval-valued q-rung orthopair fuzzy set (IVq-ROFS) is a powerful tool for dealing with uncertainty. In this paper, we first propose a new method for aggregating multiple IVq-ROFSs, which is easier to understand and implement in the multi-attribute group decision making process compared to current aggregation operators. Secondly, this paper introduces a new fuzzy entropy with parameters based on IVq-ROFS, which is highly flexible due to its adjustable parameters.

View Article and Find Full Text PDF

Interval-valued Fermatean fuzzy sets (IVFFSs) were introduced as a more effective mathematical tool for handling uncertain information in 2021. In this paper, firstly, a novel score function (SCF) is proposed based on IVFFNs that can distinguish between any two IVFFNs. And then, the novel SCF and hybrid weighted score measure were used to construct a new multi-attribute decision-making (MADM) method.

View Article and Find Full Text PDF

As typical nano metarials in near infrared waveband, PbSe Quantum Dots have a very large exciton Bohr radius of 46 nm and a small band gap of 0.28 eV at room temperature. PbSe QDs have very unique properties, such as the quantum confined optical property, and which possess high photoluminescence (PL) quantum yield (QY) with size dependent tunable wavelength emissions.

View Article and Find Full Text PDF