Article
Automation & Control Systems
Alejandro C. Olivieri
Summary: The boundaries of the range of feasible profiles in the bilinear decomposition of a data matrix are estimated by a new sensor-wise N-BANDS approach, which produces consistent results with the FACPACK program and appears to be feasible for truly multi-component systems.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2021)
Article
Mechanics
Muhammad Ishaq, Zhi-Min Chen
Summary: This study analyzes the propagation of a fundamental plane mode in a bifurcated waveguide structure with soft-hard boundaries using the Helmholtz equation. The explicit solution to this bifurcated spaced waveguide problem is provided by matching the potential across the boundary of continuity. The amplitudes of the reflected field in all regions are evaluated and energy balance is derived. The analysis shows that the reflected amplitude decreases as the duct spacing increases, resulting in an increase in acoustic energy.
Article
Automation & Control Systems
Alejandro C. Olivieri, Klaus Neymeyr, Mathias Sawall, Roma Tauler
Summary: Three models were compared for estimating the boundaries of the feasible range of bilinear solutions in the presence of noise caused by rotational ambiguity. A two-component system with overlapping component profiles was studied using FACPACK, MCR-BANDS, and N-BANDS. The results were compared with simulations and an analysis of an experimental system that considered both rotational ambiguity and instrumental noise.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2022)
Article
Automation & Control Systems
Mathias Sawall, Tomass Andersons, Hamid Abdollahi, Somaiyeh Khodadadi Karimvand, Bahram Hemmateenejad, Klaus Neymeyr
Summary: This article discusses how to calculate band boundaries for rank-deficient problems with known rank-deficient factors. Polytope constructions and linear programming problems are used as key tools for these computations. Numerical studies are conducted for a model problem and two experimental data sets.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2022)
Article
Polymer Science
M. Manav, M. Ponga, M. Ortiz
Summary: We present a novel computational approach to simulate the microstructural evolution of hard-soft block copolymers under mechanical loading, which shows good agreement with experimental measurements.
Article
Materials Science, Multidisciplinary
P. Narayanan, R. Pramanik, A. Arockiarajan
Summary: Soft materials, particularly soft magnetic materials, exhibit large deformation material nonlinearity and enhanced elongation-at-break strain, making them suitable for various biomedical and microfluidic applications. This paper focuses on the development of a thermodynamically-consistent micromechanics-based constitutive model to understand the mechanical behavior of these materials under magneto-mechanical loads. The model incorporates rate-dependent, hyperelastic, and flow behavior, and shows good agreement with experimental data. A parametric study is also conducted to gain physical insights into the model parameters.
MECHANICS OF MATERIALS
(2023)
Article
Mathematics, Applied
Andrzej Okolewski, Barbara Blazejczyk-Okolewska
Summary: The study reconsiders the application of soft and hard impact models in vibro-impact systems, discussing conditions for energy dissipation equivalence and demonstrating key features of soft impact models. The effects of additional elastic-damping elements and external forcing on system behavior are examined, showing different results based on the stiffness and energy dissipation rate of the base when applying the soft impact model.
Article
Chemistry, Analytical
Fatemeh Sadat Hashemi-Nasab, Hamid Abdollahi, Roma Tauler, Cyril Rukebusch, Hadi Parastar
Summary: In this paper, a new approach based on mutual information (MI) is proposed to explore the independence of feasible solutions in two-component systems. The results indicate that different feasible solutions have different degrees of independence in the feasible bands, with spectral profiles being more independent than concentration profiles. Furthermore, MI maps show that the solutions of MF-ICA and MCR-ALS are within the feasible bands, while the solutions of MILCA and JADE, which are based solely on independence maximization, are outside the MI maps.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Inorganic & Nuclear
Florian S. Tschernuth, Arseni Kostenko, Sebastian Stigler, Anna Gradenegger, Shigeyoshi Inoue
Summary: The Germanium-centred Lewis superacid Ge(pinF)2 (1) was isolated and characterized by various methods. It was found to exhibit both hard and soft Lewis superacidic properties. The compound can activate silanes and catalyze hydrosilylation reactions. The inverse temperature dependence of the catalytic reaction is attributed to the formation of Germylene Ge(pinF) (3).
DALTON TRANSACTIONS
(2023)
Article
Automation & Control Systems
Philip K. Hopke
Summary: Rotational ambiguity is a major problem in factor analysis methods applied to mixture resolution. Self-modeling curve resolution can achieve good separations with fixed spectral characteristics, but challenges remain for air pollution mixture problems.
CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS
(2021)
Article
Engineering, Mechanical
Zeeshan Alam, Srikant Padmanabhan, Atul Kumar Sharma
Summary: This study investigates the nonlinear deformation and small-amplitude longitudinal elastic wave band gap characteristics of an infinite periodic hard-magnetic soft material laminate under applied magnetic flux density. The results show that the width and position of the band gaps can be changed by varying the magnetic field intensity, and the material properties and volume fractions of the laminate also play significant roles in the generation of band gaps. These findings provide guidelines for designing futuristic remotely and actively controlled wave-manipulating devices.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Quan Zhang, Stephan Rudykh
Summary: This study investigates the magneto-mechanical behavior of periodic laminates made of hard-magnetic active elastomers (HMAEs) and examines the induced deformation and shear wave propagation in HMAE laminates under a magnetic field. The results show that remanent magnetization can lead to compressive deformations and tunable shear wave band gaps.
MECHANICS OF MATERIALS
(2022)
Article
Automation & Control Systems
Mohamed Afy-Shararah, Konstantinos Salonitis
Summary: This paper presents a novel holistic modeling approach to investigate the relationship between qualitative variables and quantifiable shopfloor key performance indicators. The study found that increasing absenteeism reduces production rate and motivation, while effective training can increase motivation. Causal loop diagram and system dynamics simulation model were used to depict these relationships.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Andrzej Okolewski, Barbara Blazejczyk-Okolewska
Summary: This paper discusses the application of soft and hard impact models to vibro-impact systems with a moving base, deriving conditions under which the two collision models are equivalent in terms of equal energy dissipation. It is shown that when the base is stiff, harmonically moving, and has a low rate of energy dissipation, both models yield the same results; however, using the soft impact model for a base with low stiffness or high energy dissipation rate leads to different outcomes from the hard impact model.
NONLINEAR DYNAMICS
(2021)
Article
Engineering, Multidisciplinary
Kona Veera Ganesh, Md Rushdie Ibne Islam, Puneet Kumar Patra
Summary: In this study, we use the pseudo-spring-augmented smoothed particle hydrodynamics (SPH) framework to analyze the differences in crack path propagation between functionally graded material (FGM) plates and homogeneous plates with inclusions. Understanding crack propagation in multi-component structural systems is crucial for uncovering the underlying failure mechanisms. The results show that the presence of inclusions significantly influences the crack paths, with plates failing due to the failure of soft inclusions and cracks deflecting away from hard inclusions in both types of plates, although the amount of deflection differs between FGM plates and homogeneous ones.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2023)
Article
Chemistry, Analytical
Yujia Ying, Huilin Li
Summary: Enzymes play a crucial role as biological catalysts in accelerating biochemical reactions in living organisms. This study proposes a convenient method for monitoring enzymatic catalytic processes using native top-down mass spectrometry. By exploring the heterogeneity of the chymotrypsin sample and using tandem mass spectrometry, the researchers were able to monitor covalent and noncovalent enzymatic complexes, substrates, and products during catalysis. The results demonstrate that this method has the potential to be a promising tool for characterizing biocatalysts.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Kang Yang, Shuaibo Shi, Jinyu Wu, Shaolong Han, Shengdi Tai, Shishen Zhang, Kun Zhang
Summary: H2O and D2O are important analogues closely related to various industries and monitoring fields. This study successfully distinguishes and detects H2O and D2O by designing a novel eu(III)-macrocycle with dual emitters, Eu-2a, and conducting fluorescence titration experiments.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Julia Kuligowski, Alvaro Perez-Rubio, Marta Moreno-Torres, Polina Soluyanova, Judith Perez-Rojas, Ivan Rienda, David Perez-Guaita, Eugenia Pareja, Ramon Trullenque-Juan, Jose Castell, Marcha Verheijen, Florian Caiment, Ramiro Jover, Guillermo Quintas
Summary: This study introduces a novel variable selection approach called cluster PLS (c-PLS) to assess the joint impact of variable groups selected based on biological characteristics on the predictive performance of a multivariate model. The usefulness of c-PLS is shown using miRNomic and metabolomic datasets obtained from the analysis of liver tissue biopsies.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Meixue Lai, Lijie Zhong, Siyi Liu, Yitian Tang, Tingting Han, Huali Deng, Yu Bao, Yingming Ma, Wei Wang, Li Niu, Shiyu Gan
Summary: This study presents a method for constructing wearable sweat electrolyte sensors using carbon fiber-based solid-contact ion-selective electrodes (SC-ISEs). By using carbon fibers extracted from commercial cloth as electrode material, the cost and reproducibility issues of flexible SC-ISEs were addressed. The results showed that the carbon fiber-based SC-ISEs exhibited reversible voltammetric and stable impedance performances, and had high reproducibility of standard potentials between normal and bending states.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Yang, Ying Liu, Min Deng, Peipei Wang, Dan Cheng, Songjiao Li, Longwei He
Summary: A near-infrared fluorescent probe has been developed to accurately measure the levels of peroxynitrite (ONOO-) in the endoplasmic reticulum (ER) in acute lung injury (ALI). The probe demonstrated rapid response, high selectivity, good sensitivity, and enhanced fluorescence intensity in response to ONOO-. It was successfully used to detect changes in ONOO- levels and showed significant increases in an ALI cell model and an ALI mouse model.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yanping Wang, Yuemei Chen, Kejun Li, Jinrong Zhou, Xin Yuan, Mei Zhang, Ke Huang
Summary: In this work, a portable analytical system based on point discharge chemical vapor generation atomic emission spectrometry (PD-CVG-AES) coupling with gold filament enrichment was designed. The highly sensitive analysis of Hg2+ indirectly realized the detection of ascorbic acid (AA). The measurement is based on the fact that Ag+ can decrease the concentration of Hg2+ by forming Ag-Hg amalgam in the presence of the reductant SnCl2, while AA can pre-reduce Ag+ to Ag0, leading to the generation of silver nanoparticles (Ag NPs). The developed novel analytical strategy broadens the application of microplasma-based AES and offers a higher level of sensitivity compared to current AA detection techniques.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yundi Huang, Bo Song, Kaiwen Chen, Deshu Kong, Jingli Yuan
Summary: This study developed two lysosome-targetable background-free TGL probes for efficient and accurate detection of 1O2, which can be used for monitoring endogenous 1O2 concentrations in lysosomes and discriminating variability induced by different photosensitizers. Furthermore, a smart luminescent sensor film was successfully prepared for on-site 1O2 production detection during PDT processes, offering a promising clinical monitoring tool for skin diseases.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Wei Lang, Jia-Mei Qin, Qian-Yong Cao
Summary: A novel polymer-based probe P1 was successfully synthesized for fluorescently ratiometric sensing of H2S with high selectivity and sensitivity. A smartphone sensing platform was constructed to conduct visual quantitative detection of H2S. P1 can be employed in evaluating the level fluctuations of H2S in living cells, testing water samples/wine samples, and monitoring food freshness.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yuanyuan Qin, Shuda Liu, Shuyun Meng, Dong Liu, Tianyan You
Summary: The study developed a split aptamer-based sandwich-type ratiometric biosensor for the detection of 17 beta-estradiol (E2) using photoelectrochemical and electrochemical assays. The biosensor utilized split aptamer fragments to recognize E2 and trigger a hybridization chain reaction, resulting in the production of double-stranded DNA labeled with CdTe quantum dots. This DNA complex was able to sensitize CdTe quantum dots and generate response signals for E2 detection. The developed biosensor demonstrated high sensitivity and accuracy with two linear ranges and low detection limits.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Siriwan Teepoo, Jongjit Jantra, Khaunnapa Panapong, David Taiwo Ajayi
Summary: A novel immunochromatographic assay based on hyperbranched Au plasmonic blackbodies with a smartphone readout was developed for rapid and sensitive detection of leucomalachite green residues in fish and shrimp products.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Andrea L. Larraga-Urdaz, Borja Moreira-Alvarez, Jorge Ruiz Encinar, Jose M. Costa-Fernandez, Maria Luisa Fernandez-Sanchez
Summary: A major challenge in the 21st century is the development of point-of-care diagnostic tools. In this study, a highly sensitive and simple bioassay using AuNPs and MNAzymes was developed for rapid detection and quantification of miRNA-4739. The proposed strategy shows potential for breast cancer diagnosis.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Xiaohan Zhao, Anyu Wang, Lingzi Zhai, Jiuhe Gao, Sizhe Lyu, Yingshan Jiang, Tian Zhong, Ying Xiao, Xi Yu
Summary: A novel method using polystyrene-coated magnetic nanoparticles for extracting monohydroxy polycyclic aromatic hydrocarbons from urine samples was investigated. The proposed method is simple, sensitive, and efficient, with desirable sensitivity for analyzing low-abundance metabolites in large volumes of complex urine samples.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Dongjuan Wang, Xiuqian Ding, Jinling Xie, Juan Wang, Guanhao Li, Xin Zhou
Summary: In this study, a three-in-one sensor was developed for real-time detection of biogenic amines (BAs) with high sensitivity and selectivity. The sensor showed multimodal responses and could be used to fabricate portable devices for on-site non-destructive assessment of food spoilage indicators.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Jinting Meng, Zihao Xu, Shasha Zheng, Hongqun Yang, Tianfu Wang, Hong Wang, Yingwei Zhang
Summary: This study demonstrates the development of a cascade signal amplification system using a multi-pedal DNA walker and strand displacement reactions for the electrochemical detection of miRNA-155. The biosensor exhibited high sensitivity, selectivity, and the potential for clinical applications.
ANALYTICA CHIMICA ACTA
(2024)
