39 research outputs found
A supervised generative optimization approach for tabular data
Synthetic data generation has emerged as a crucial topic for financial
institutions, driven by multiple factors, such as privacy protection and data
augmentation. Many algorithms have been proposed for synthetic data generation
but reaching the consensus on which method we should use for the specific data
sets and use cases remains challenging. Moreover, the majority of existing
approaches are ``unsupervised'' in the sense that they do not take into account
the downstream task. To address these issues, this work presents a novel
synthetic data generation framework. The framework integrates a supervised
component tailored to the specific downstream task and employs a meta-learning
approach to learn the optimal mixture distribution of existing synthetic
distributions
Engineering Crack Formation in Carbon Nanotube-Silver Nanoparticle Composite Films for Sensitive and Durable Piezoresistive Sensors
A Review: Carbon Nanotube-Based Piezoresistive Strain Sensors
The use of carbon nanotubes for piezoresistive strain sensors has acquired significant attention due to its unique electromechanical properties. In this comprehensive review paper, we discussed some important aspects of carbon nanotubes for strain sensing at both the nanoscale and macroscale. Carbon nanotubes undergo changes in their band structures when subjected to mechanical deformations. This phenomenon makes them applicable for strain sensing applications. This paper signifies the type of carbon nanotubes best suitable for piezoresistive strain sensors. The electrical resistivities of carbon nanotube thin film increase linearly with strain, making it an ideal material for a piezoresistive strain sensor. Carbon nanotube composite films, which are usually fabricated by mixing small amounts of single-walled or multiwalled carbon nanotubes with selected polymers, have shown promising characteristics of piezoresistive strain sensors. Studies also show that carbon nanotubes display a stable and predictable voltage response as a function of temperature
A technique for in-situ detection of random failure in composite structures under cyclic loading
Real-time through-thickness and in-plane strain measurement in carbon fibre reinforced polymer composites using planar optical Bragg gratings
Strain sensing of printed carbon nanotube sensors on polyurethane substrate with spray deposition modeling
Controlling Size-Dispersion of Single Walled Carbon Nanotubes by Interaction with Polyoxometalates Armed with a Tryptophan Tweezer
A bis-tryptophan tweezer was installed on a polyoxometalate (POM) surface via a bis-amide covalent bond, yielding the enantiopure hybrid POM with C2 symmetry, as a result of the regioselective functionalization of decatungosilicate [\u3b3-SiW10O36]8\u2013 at the lacunary site. The combined polyanionic and receptor properties are instrumental for a POM-driven solubilization and enrichment of single walled carbon nanotubes (SWCNTs) with diameter <1.1 nm, as demonstrated by Raman and UV/Vis-NIR evidence, in agreement with the calculated energetics of the tryptophan tweezer\u2013SWCNT interaction