Recovering carbon fibers from waste CFRPs via pyrolysis-oxidation method: Implications for reuse in remanufactured materials.

Carbon fiber-reinforced polymer composites (CFRPs) have gained widespread usage due to their promising physiochemical properties, while this causes large amounts of waste CFRPs worldwide. In this study, carbon fibers were successfully recovered from waste CFRPs through the pyrolysis-oxidation method, and the recovered fibers were reused in remanufacturing the secondary generation CFRPs. Moreover, the individual and interactive effects of pyrolysis-oxidation recovering parameters on the mechanical strength of the resulting remanufactured CFRPs (reCFRPs) were investigated.

Network pharmacology prediction and molecular docking-based strategy to explore the pharmacodynamic substances and mechanism of "Mung Bean" against bacterial infection.

Objective: The network pharmacology approach combined the technologies of molecular docking and bacteriostatic validation to explore the active compounds, core targets, and mechanism of against bacterial infection.

Methods: A target and anti-bacterial infection-related gene set was established using TCMSP and GeneCards databases. Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis and protein-protein interaction network were performed using DAVID and STRING database.

Formation mechanism of NO precursors during the pyrolysis of 2,5-diketopiperazine based on experimental and theoretical study.

Incineration of food waste leads to the release of NO pollutants, whereas the formation mechanism of the NO precursors (HCN, NH, and HNCO) during the initial pyrolysis process is far from well-studied, limiting the source control on NO release. In this work, 2,5-diketopiperazine (DKP) was selected as the N-containing model compound to study the formation mechanism of NO precursors in food waste pyrolysis, by combining experiments and density functional theory (DFT) calculations. The C1-N2 bond broken via the N2-to-N5 H-transfer possesses the lowest energy barrier, together with the largest reaction rate constants in the range of 400-800 °C.

First-principles insights into the adsorption and interaction mechanism of selenium on selective catalytic reduction catalyst.

Selenium (Se) species can deposit in selective catalytic reduction (SCR) system during the denitrification process, which is harmful to the catalyst. To improve the Se-poisoning resistance of SCR catalysts, the influence mechanism of Se species on vanadium-titanium-based catalysts should be elucidated from an atomic scale. In this paper, theoretical calculations were conducted to reveal the adsorption and interaction mechanism of Se species on VO-WO(MoO)/TiO surface based on the first-principles.

Direct catalytic decomposition of NO over bismuth modified NiO catalysts.

Direct catalytic decomposition is a promising technology to control the emission of nitrous oxide (NO) during fossil fuel combustion and various chemical industries. In this study, a series of NiO catalysts modified with different metal oxides (MNiO) were prepared by the co-precipitation method and employed for the direct catalytic decomposition of NO. Bismuth (Bi) species was confirmed to be the most optimal promoter and the BiNiO catalyst with a Bi/Ni molar ratio of 0.

Effects of gaseous agents on the evolution of char physical and chemical structures during biomass gasification.

Bio-char samples were prepared from gasification of corn straw under N, CO and HO conditions, and systematically characterized to reveal the effects of gaseous agents on the evolution of char structural features during the gasification process. The results showed that the increase of reacting temperature had positive effects on the gasification of char in both HO and CO atmospheres. The evolution of char pore structures under HO and CO was quite different.

Dummy molecularly imprinted polymer based microplate chemiluminescence sensor for one-step detection of Sudan dyes in egg.

The objective of this study is to report a molecularly imprinted polymer-based chemiluminescence method for determination of Sudan dyes. A dummy-template molecularly imprinted polymer capable of recognizing seven Sudan dyes was first synthesized and its recognition mechanism was studied by using computation simulation method. The polymer was coated in the wells of conventional microplate to prepare a chemiluminescence sensor and the assay process consisted of only one sample-loading step prior to signal acquisition.

Tongue Pressure Sensing Array Integrated with a System-on-Chip Embedded in a Mandibular Advancement Splint.

Obstructive sleep apnea (OSA), which is caused by obstructions of the upper airway, is a syndrome with rising prevalence. Mandibular advancement splints (MAS) are oral appliances for potential treatment of OSA. This work proposes a highly-sensitive pressure sensing array integrated with a system-on-chip (SoC) embedded in a MAS.

A Wireless Monitoring System Using a Tunneling Sensor Array in a Smart Oral Appliance for Sleep Apnea Treatment.

Sleep apnea is a serious sleep disorder, and the most common type is obstructive sleep apnea (OSA). Untreated OSA will cause lots of potential health problems. Oral appliance therapy is an effective and popular approach for OSA treatment, but making a perfect fit for each patient is time-consuming and decreases its efficiency considerably.

Microparticles: new light shed on the understanding of venous thromboembolism.

Microparticles are small membrane fragments shed primarily from blood and endothelial cells during either activation or apoptosis. There is mounting evidence suggesting that microparticles perform a large array of biological functions and contribute to various diseases. Of these disease processes, a significant link has been established between microparticles and venous thromboembolism.

[Changes in content of inflammatory cytokines and troponin I in peri-operative periods of coronary artery bypass grafting with or without cardiopulmonary bypass].

Objective: To evaluate the effects of coronary artery bypass grafting (CABG) with or without cardiopulmonary bypass (CPB) on inflammatory response and myocardial injury.

Methods: Sixty patients undergoing elective CABG were randomly divided into CABG with CPB group (CCABG, 30 cases) and CABG without CPB group (OPCABG, 30 cases). Blood samples were collected from central vein to assay interleukin-6 (IL-6), interleukin-8 (IL-8), tumor necrosis factor-alpha (TNF-alpha), MB isoenzyme of creatine kinase (CK-MB) and troponin I (cTnI) before operation and 2, 8, 24, as well as 48 hours after operation, and all clinical data of the patients were recorded accordingly.