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JOURNAL ARTICLE
Aravindan Marimuthu, Praveen Kumar Govindasamy
Integrating hydrogen with CNG is crucial for carbon neutrality and environmental goals, as it enhances flame temperature, reduces emissions, and combats global warming. This study employs the CHEMKIN tool to examine combustion characteristics, including adiabatic flame temperature, mole fraction, normalization, and production rate, in H2 -CNG mixtures under various atmospheric and operating conditions. Blending 50% hydrogen with CNG results in significant changes, including a temperature increase from 2322 to 2344 K when the hydrogen content is at 50%...
April 22, 2024: Environmental Science and Pollution Research International
#42
JOURNAL ARTICLE
Matteo Impagnatiello, Quentin Malé, Nicolas Noiray
UNLABELLED: Ignition and combustion behavior in the second stage of a sequential combustor are investigated numerically at atmospheric pressure for pure <mml:math xmlns:mml="https://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>CH</mml:mtext><mml:mn>4</mml:mn></mml:msub></mml:math> fueling and for two <mml:math xmlns:mml="https://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>CH</mml:mtext><mml:mn>4</mml:mn></mml:msub></mml:math>-<mml:math xmlns:mml="https://www...
2024: Flow, Turbulence and Combustion
#43
JOURNAL ARTICLE
Ning Li, Yu Zhang, Shun Zhang, Lu Shi, Jie-Yu Zhang, Ke-Meng Song, Jin-Chun Li, Fang-Lei Zeng
Enhancing the flame retardancy of electrolytes and the stability of lithium anodes is of great significance to improve the safety performance of lithium-sulfur (Li-S) batteries. It is well known that the most commonly used ether based electrolyte solvents in Li-S batteries have a lower flash point and higher volatility than the ester electrolyte solvents in Li-ion batteries. Hence, lithium-sulfur batteries have greater safety risks than lithium-ion batteries. Herein, ethoxy(pentafluoro)cyclotriphosphazene (PFPN), which is commonly used as a flame retardant for ester electrolytes in lithium-ion batteries, is utilized as both a film-forming electrolyte additive and a flame retardant additive for the ether electrolyte to investigated its applicability in Li-S batteries...
April 16, 2024: RSC Advances
#44
JOURNAL ARTICLE
Tianyang Cui, Yapeng Zheng, Mengdi Hu, Bicheng Lin, Jingwen Wang, Wei Cai, Bin Fei, Jixin Zhu, Yuan Hu
Due to the ubiquitous and inexhaustible solar source, photothermal materials have gained considerable attention for their potential in heating and de-icing. Nevertheless, traditional photothermal materials, exemplified by graphene, frequently encounter challenges emanating from their elevated reflectance. Inspired by ocular structures, this study uses the Fresnel equation to enhance the photo-thermal conversion efficiency of graphene by introducing a polydimethylsiloxane (PDMS)/silicon dioxide (SiO2 ) coating, which reduces the light reflectance (≈20%) through destructive interference...
April 22, 2024: Small
#45
JOURNAL ARTICLE
Yiwei Geng, Rongjia Li, Zexuan Zhao, Gaoyuan Li, Biyu Huang, Xilei Chen, Chuanmei Jiao
The wide application of flexible polyurethane foam (FPUF) poses a giant challenge to human society in terms of fire prevention and environmental pollution. To solve this problem, the lignocellulose-based P-N flame retardant (LFPN) has been developed using mechanochemical methods. It was found that FPUF treated using LFPN exhibited good flame retardancy, but suffered from high smoke generation and toxicity. The hollow dodecahedral ZIF-67 has been used for smoke suppression catalysis, but the agglomeration phenomenon makes it inefficient...
April 17, 2024: Chemosphere
#46
JOURNAL ARTICLE
Thais Danyelle Santos Araujo, Fabio de Oliveira Silva Ribeiro, Alyne Rodrigues de Araujo-Nobre, Daniela Nadvorny, Kirley Marques Canuto, Rita de Cássia Alves Pereira, Ana Sheila de Queiroz Souza, Anna Luisa de Carvalho Brito, Francisca Gleire Rodrigues de Menezes, André Luis Coelho da Silva, Fabíola Helena Dos Santos Fogaça, Durcilene Alves da Silva, Bartolomeu Warlene Silva de Souza
In this study, two nanoemulsions were formulated with essential oil (EO) of Ocimum gratissimum with (EON) or without (EOE) cashew gum (CG). Subsequently, inhibition of melanosis and preservation of the quality of shrimp stored for 16 days at 4 ± 0.5 °C were evaluated. A computational approach was performed to predict the system interactions. Dynamic light scattering (DLS) and atomic force microscopy (AFM) were used for nanoparticle analysis. Gas chromatography and flame ionization detector (GC-FID) determined the chemical composition of the EO constituents...
April 17, 2024: International Journal of Biological Macromolecules
#47
JOURNAL ARTICLE
Xinpei Wang, Xiujie Cui, Yi Wang, Qianqian Wang, Feifei Sun, Zhiyan Liu
Decabromodiphenyl ether (BDE209) has been demonstrated to be associated with thyroid dysfunction and thyroid carcinoma risk as a widely used brominated flame retardants. Although dabrafenib has been confirmed to be a promising therapeutic agent for papillary thyroid carcinoma (PTC) harboring BRAFV600E mutation, the rapid acquired dabrafenib resistance has brought a great challenge to clinical improvement and the underpinning mechanisms remain poorly defined. By treating PTC-derived and normal follicular epithelial cell lines with BDE209, we assessed its impact on the MAPK pathway's activation and evaluated the resultant effects on cell viability and signaling pathways, utilizing methods such as Western blot, IF staining, and RNA-seq bioinformatic analysis...
April 17, 2024: Toxicology
#48
REVIEW
Sarvenaz Shahin, Eleanor A Medley, Mrudula Naidu, Leonardo Trasande, Akhgar Ghassabian
Organophosphate esters (OPEs) are a class of chemicals now widely used as flame retardants and plasticizers after the phase-out of polybrominated diphenyl ethers (PBDEs). However, OPEs carry their own risk of developmental toxicity, which poses concern for recent birth cohorts as they have become ubiquitous in the environment. In this review, we summarize the literature evaluating the association between OPE exposure and maternal, perinatal, and child health outcomes. We included original articles investigating associations of OPE exposure with any health outcome on pregnant women, newborns, children, and adolescents...
April 17, 2024: Environmental Research
#49
JOURNAL ARTICLE
Quanlu Dou, Junbo Zhao, Meiting Lin, Wanhui Liu, Ping Xiang
Drug-impaired driving poses a significant risk of collisions and other hazardous accidents, emphasizing the urgent need for simple and rapid roadside detection methods. Oral fluid, as an easily collectible and non-invasive test material, has gained widespread use in detecting drug-impaired driving. In this study, we have devised a method for direct sampling using a carbon fiber bundle combined with flame ionization mass spectrometry. The essence of this method lies in the synergy between the adsorption properties of carbon fiber and the plasma characteristics of the flame...
April 17, 2024: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
#50
JOURNAL ARTICLE
Chao Zhang, Ying Yan, Chuanbao Zhang
BACKGROUND: This study examines the imprecision of zinc (Zn) measurements across various clinical detection methods by analyzing the external quality assessment (EQA) data from 2018 to 2022. The findings of this study aim to offer recommendations for enhancing Zn measurements. METHODS: Participating laboratories were grouped into peer categories based on the detection methods. The robust mean and coefficient of variation (CV) of the samples were calculated following ISO 13528 guidelines...
April 12, 2024: Journal of Trace Elements in Medicine and Biology
#51
JOURNAL ARTICLE
Xiaoning Song, Qianlong Li, Zhengde Han, Boyou Hou, Ye-Tang Pan, Zhishuai Geng, Jing Zhang, Laia Haurie Ibarra, Rongjie Yang
Cyclomatrix polyphosphazenes have attracted widespread attention in the field of polymer flame retardancy. Nevertheless, the optimal manifestation of their distinctive structural attributes and flame-retardant properties necessitates a judicious selection of condensation monomers and synergistic templates during the fabrication of polyphosphazene flame retardants. In our previous studies, it was discovered that when ZIF-67 is functionalized with polyphosphazene, the by-product HCl from phosphazene polycondensation causes etching on ZIF-67...
April 14, 2024: Journal of Colloid and Interface Science
#52
JOURNAL ARTICLE
Shaoxin Ye, Zuoying Wen, Kai Xie, Xuejun Gu, Jian Wang, Xiaofeng Tang, Weijun Zhang
The growing popularity of e-cigarettes and the associated risks of nicotine addiction present a new challenge to global public health security. Measuring the nicotine levels in e-cigarette aerosols is essential to assess the safety of e-cigarettes. In this study, a rapid in situ method was developed for online quantification of nicotine in e-cigarette aerosols by using a homemade vacuum ultraviolet photoionization aerosol mass spectrometer (VUV-AMS). E-cigarette liquids with different nicotine concentrations were prepared to generate aerosols containing different levels of nicotine, which were employed as the calibration sources for nicotine quantification by VUV-AMS...
April 18, 2024: Analytical Methods: Advancing Methods and Applications
#53
JOURNAL ARTICLE
Chukwu Fidelis Opia, Ibe Francis Chizoruo
The research determined the anthropogenic source and risk evaluation of total petroleum hydrocarbons of some ground water sources within Orji auto repair workshops, Owerri, Imo State, Nigeria. The concentrations of total petroleum hydrocarbons in different groundwater samples within this vicinity were determined by selecting samples from five sampling locations using the liquid-liquid extraction process and gas chromatography fitted with a flame ionization detector. The concentrations of TPHs were determined with C15 (Pentadecane) and C30 (Triaconate) having the highest total concentrations in all sample locations of 29...
March 2024: Environmental analysis, health and toxicology
#54
JOURNAL ARTICLE
Ovokeroye Akpojevwe Abafe, Stuart Harrad, Mohamed Abou-Elwafa Abdallah
To overcome ethical and technical challenges impeding the study of human dermal uptake of chemical additives present in microplastics (MPs), we employed 3D human skin equivalent (3D-HSE) models to provide first insights into the dermal bioavailability of polybrominated diphenyl ether (PBDEs) present in MPs; and evaluated different factors influencing human percutaneous absorption of PBDEs under real-life exposure scenario. PBDEs were bioavailable to varying degrees (up to 8 % of the exposure dose) and percutaneous permeation was evident, albeit at low levels (≤0...
April 5, 2024: Environment International
#55
JOURNAL ARTICLE
New Treatment modality for Burn Injury Related ARDS : High-Flow Nasal Oxygen Therapy in Major Burns.
Merve Akin, Huriye Bilge Tuncer, Ali Emre Akgün, Ezgi Erkılıç
Pulmonary insufficiency is the primary cause of death in cases of major burns accompanied by inhalation damage. It is important to consider the impact on the face and neck in flame burns. Early implementation of bronchial hygiene measures and oxygenation treatment in inhalation injury can reduce mortality. This case series presents the effects of high-flow nasal oxygen application on patient outcomes in major burns and inhalation injury. This report discusses three different patients. One patient, a 29-year-old male with 35% TBSA burns, received high-flow nasal oxygen (HFNO) treatment for inhalation injury on the sixth day after the trauma...
April 17, 2024: Journal of Burn Care & Research: Official Publication of the American Burn Association
#56
JOURNAL ARTICLE
Chunli Zou, Tingting Yang, Xinfeng Huang, Xiaohu Ren, Chen Yang, Benhong Xu, Jianjun Liu
Alzheimer's disease is the most common form of dementia and is characterized by cognitive impairment. The disruption of autophagosome-lysosome function has been linked to the pathogenesis of Alzheimer's disease. Tris (1,3-dichloro-2-propyl) phosphate (TDCIPP) is a widely used organophosphorus flame retardant that has the potential to cause neuronal damage. We found that TDCIPP significantly increased the expression of β-site amyloid precursor protein (APP)-cleaving enzyme 1 (BACE1), presenilin-1 (PS1) and Aβ42...
April 30, 2024: Heliyon
#57
JOURNAL ARTICLE
Marjorie Morales, Hans Peter H Arp, Gabriela Castro, Alexandros G Asimakopoulos, Erlend Sørmo, Gregory Peters, Francesco Cherubini
The high moisture content and the potential presence of hazardous organic compounds (HOCs) and metals (HMs) in sewage sludge (SS) pose technical and regulatory challenges for its circular economy valorisation. Thermal treatments are expected to reduce the volume of SS while producing energy and eliminating HOCs. In this study, we integrate quantitative analysis of SS concentration of 12 HMs and 61 HOCs, including organophosphate flame retardants (OPFRs) and per- and poly-fluoroalkyl substances (PFAS), with life-cycle assessment to estimate removal efficiency of pollutants, climate change mitigation benefits and toxicological effects of existing and alternative SS treatments (involving pyrolysis, incineration, and/or anaerobic digestion)...
April 10, 2024: Journal of Hazardous Materials
#58
JOURNAL ARTICLE
Sivakumar Durairaj
Various industrial operations in the dye, fertilizer, pesticide, battery, mining, and chemical industries have been associated with releasing heavy metals in wastewater, such as lead, zinc, copper, arsenic, cadmium, chromium, nickel, and mercury. These metals are dangerous to aquatic life as well as to humans, who may consume them directly or indirectly. Therefore, before being released into open water and land resources, it is necessary to minimize the concentration of toxic ions below the discharge limit...
April 15, 2024: Environmental Science and Pollution Research International
#59
JOURNAL ARTICLE
Naomi Kouri, Isabelle Frankenhauser, Zhongwei Peng, Sydney A Labuzan, Baayla D C Boon, Christina M Moloney, Cyril Pottier, Daniel P Wickland, Kelsey Caetano-Anolles, Nick Corriveau-Lecavalier, Jessica F Tranovich, Ashley C Wood, Kelly M Hinkle, Sarah J Lincoln, A J Spychalla, Matthew L Senjem, Scott A Przybelski, Erica Engelberg-Cook, Christopher G Schwarz, Rain S Kwan, Elizabeth R Lesser, Julia E Crook, Rickey E Carter, Owen A Ross, Christian Lachner, Nilüfer Ertekin-Taner, Tanis J Ferman, Julie A Fields, Mary M Machulda, Vijay K Ramanan, Aivi T Nguyen, R Ross Reichard, David T Jones, Jonathan Graff-Radford, Bradley F Boeve, David S Knopman, Ronald C Petersen, Clifford R Jack, Kejal Kantarci, Gregory S Day, Ranjan Duara, Neill R Graff-Radford, Dennis W Dickson, Val J Lowe, Prashanthi Vemuri, Melissa E Murray
IMPORTANCE: Factors associated with clinical heterogeneity in Alzheimer disease (AD) lay along a continuum hypothesized to associate with tangle distribution and are relevant for understanding glial activation considerations in therapeutic advancement. OBJECTIVES: To examine clinicopathologic and neuroimaging characteristics of disease heterogeneity in AD along a quantitative continuum using the corticolimbic index (CLix) to account for individuality of spatially distributed tangles found at autopsy...
April 15, 2024: JAMA Neurology
#60
JOURNAL ARTICLE
Muddada Srinivasarao, Bok Jik Lee, Vanteru Mahendra Reddy
The present study investigates the applicability of the inlet boundary species Lewis number (combined effect of molecular and flow diffusion) for the nonpremixed moderate and intense low oxygen dilution (MILD) flames. A modified reactive solver named modifiedReactingFoam is developed by including the enthalpy flux in the energy equation and using modified model constants in OpenFOAM. The present solver is tested on the delft-jet-in-hot-coflow burner operating under a moderate and intense low oxygen dilution combustion environment...
April 9, 2024: ACS Omega
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