82 results match your criteria: "University of Science and Technology of Mazandaran[Affiliation]"
Eur Phys J C Part Fields
December 2024
Int J Biol Macromol
January 2025
Chemistry Department, Yasouj University, Yasouj 75918-74831, Iran.
In the present research, we investigate Congo red (CR) removal by layered double hydroxide and oxide AlCa on cellulose acetate (CA) fiber as anion-adsorbents in aqueous solution. The as-prepared composite was characterized by FE-SEM, XRD, FTIR, EDS-mapping and BET-BJH analyses. The CR adsorption ability on AlCa LDH/CA and AlCa LDO/CA adsorbents was evaluated.
View Article and Find Full Text PDFEur Phys J C Part Fields
October 2024
Authors affiliated with an institute or an international laboratory covered by a cooperation agreement with CERN, Geneva, Switzerland.
Using proton-proton collision data corresponding to an integrated luminosity of collected by the CMS experiment at , the decay is observed for the first time, with a statistical significance exceeding 5 standard deviations. The relative branching fraction, with respect to the decay, is measured to be , where the first uncertainty is statistical, the second is systematic, and the third is related to the uncertainties in and .
View Article and Find Full Text PDFHeliyon
September 2024
Electrical Engineering Department, University of Science and Technology of Mazandaran, Behshahr, Mazandaran, Iran.
This study examines the impact of the COVID-19 pandemic on renewable energy sectors across seven countries through techno-economic analysis and machine learning (ML). In China, the renewable fraction decreased in grid-connected systems due to 14.6 % higher diesel fuel prices.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
September 2024
School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
Alluvial fans and deltas are two environments with different hydrochemical conditions. Their junction zones, as mixing environments, are variably influenced by different processes, leading to variable environmental conditions. The purpose of this study is to investigate groundwater quality in the junction zone of these environments in the northern part of the Jazmourian depression (known as the Rudbar plain) in southeastern Iran to determine the dominant processes, assess arsenic and fluoride health risks, and evaluate irrigation water quality.
View Article and Find Full Text PDFComput Softw Big Sci
September 2024
Authors affiliated with an institute or an international laboratory covered by a cooperation agreement with CERN, Geneva, Switzerland.
Eur Phys J C Part Fields
August 2024
A measurement is presented of a ratio observable that provides a measure of the azimuthal correlations among jets with large transverse momentum . This observable is measured in multijet events over the range of - based on data collected by the CMS experiment in proton-proton collisions at a centre-of-mass energy of 13 , corresponding to an integrated luminosity of 134 . The results are compared with predictions from Monte Carlo parton-shower event generator simulations, as well as with fixed-order perturbative quantum chromodynamics (pQCD) predictions at next-to-leading-order (NLO) accuracy obtained with different parton distribution functions (PDFs) and corrected for nonperturbative and electroweak effects.
View Article and Find Full Text PDFEur Phys J C Part Fields
August 2024
A study of the anomalous couplings of the Higgs boson to vector bosons, including -violation effects, has been conducted using its production and decay in the WW channel. This analysis is performed on proton-proton collision data collected with the CMS detector at the CERN LHC during 2016-2018 at a center-of-mass energy of 13 TeV, and corresponds to an integrated luminosity of 138 . The different-flavor dilepton final state is analyzed, with dedicated categories targeting gluon fusion, electroweak vector boson fusion, and associated production with a W or Z boson.
View Article and Find Full Text PDFEur Phys J C Part Fields
July 2024
A search for and production in the final state is presented, where H is the standard model (SM) Higgs boson. The search uses an event sample of proton-proton collisions corresponding to an integrated luminosity of 133 collected at a center-of-mass energy of 13 with the CMS detector at the CERN LHC. The analysis introduces several novel techniques for deriving and validating a multi-dimensional background model based on control samples in data.
View Article and Find Full Text PDFFront Robot AI
May 2024
Instituto Superior Técnico, Institute for Systems and Robotics, Lisbon, Portugal.
We recently developed a biomimetic robotic eye with six independent tendons, each controlled by their own rotatory motor, and with insertions on the eye ball that faithfully mimic the biomechanics of the human eye. We constructed an accurate physical computational model of this system, and learned to control its nonlinear dynamics by optimising a cost that penalised saccade inaccuracy, movement duration, and total energy expenditure of the motors. To speed up the calculations, the physical simulator was approximated by a recurrent neural network (NARX).
View Article and Find Full Text PDFEur Phys J C Part Fields
May 2024
Authors Affiliated with an Institute or an International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland.
A search for exotic decays of the Higgs boson () with a mass of 125 to a pair of light pseudoscalars is performed in final states where one pseudoscalar decays to two quarks and the other to a pair of muons or leptons. A data sample of proton-proton collisions at corresponding to an integrated luminosity of 138 recorded with the CMS detector is analyzed. No statistically significant excess is observed over the standard model backgrounds.
View Article and Find Full Text PDFDesulfurative functionalization of organosulfur compounds to form various carbon-carbon and carbon-heteroatom bonds has become established as a powerful tool in organic chemistry. In this context, desulfurative carboxylation of this class of compounds using carbon dioxide (CO) as a sustainable and renewable source of carboxyl has recently been developed as an efficient option for the synthesis of carboxylic acid derivatives. The aim of this Focus Review is to summarize the major progress in this appealing research field with particular emphasis on the mechanistic features of the reactions.
View Article and Find Full Text PDFThe double decarboxylative coupling reaction between two (similar or different) molecules of carboxylic acids is an emerging area that has gained considerable attention as a new avenue for forging carbon-carbon bonds. Since this synthetic strategy only utilizes carboxylic acids as easily accessible, non-toxic and stable starting materials, and extrudes carbon dioxide (CO) as the only waste by-product, it can be considered as an environmentally benign alternative to traditional coupling reactions which mainly rely on the use of toxic organic halides or organometallic reagents. The aim of this review is to highlight the recent advances and developments in this exciting new field that may serve as inspiration for future research to mature it.
View Article and Find Full Text PDFConserv Biol
August 2024
Department of Conservation Biology, University of Göttingen, Göttingen, Germany.
Interactions between law enforcement agents in conservation (e.g., rangers) and illegal resource users (e.
View Article and Find Full Text PDFInt J Biol Macromol
April 2024
Department of Chemical Engineering, Faculty of Engineering and Technology, University of Mazandaran, Babolsar, Iran. Electronic address:
Building a model that can accurately anticipate and optimize the dynamics of dye removal and Gibbs free energy within the framework of an adsorption process is the main goal of this research. Furthermore, it has been determined that a correlation exists between the efficacy of dye removal and the behavior of Gibbs free energy throughout the process of adsorption. The study utilized a composite material consisting of chitosan-polyacrylamide/TiO as an adsorbent to remove anionic dye from a mainly aqueous solution.
View Article and Find Full Text PDFEur Phys J C Part Fields
January 2024
Eur Phys J C Part Fields
January 2024
The measurement of Z boson production is presented as a method to determine the integrated luminosity of CMS data sets. The analysis uses proton-proton collision data, recorded by the CMS experiment at the CERN LHC in 2017 at a center-of-mass energy of 13. Events with Z bosons decaying into a pair of muons are selected.
View Article and Find Full Text PDFEnviron Res
March 2024
Tecnologico de Monterrey, Escuela de Ingenieríay Ciencias, Puebla, Mexico; Faculty of Health and Life Sciences, INTI International University, 71800, Nilai, Negeri Sembilan, Malaysia; Department of Chemical Engineering, University of Science and Technology of Mazandaran, P. O. Box: 48518-78195, Behshahr, Mazandaran, Iran. Electronic address:
The Guerouaou aquifer investigation spanning 280 km in Ain Zohra yields promising outcomes, instilling optimism for regional water quality. These analyses were applied to 45 sampling instances from 43 wells, enabling a comprehensive water quality assessment. Groundwater conductivity ranged from medium to high, peaking at 18360 ms/cm.
View Article and Find Full Text PDFFront Chem
November 2023
Department of Chemistry, Payame Noor University, Tehran, Iran.
This study investigated the adsorption of CO molecules on transition metal ions (TM) porphyrins induced carbon nanocone (TM-PICNC) (TM = Sc, Ti, V, Cr, Fe Co, Ni, Cu, and Zn) using density functional theory (DFT) to determine the stabilities, energetic, structural, and electronic properties. The results showed that the CO molecule is adsorbed on TM-PICNC with adsorption energies ranging from 0.03 to -12.
View Article and Find Full Text PDFChemosphere
January 2024
Tecnologico de Monterrey, Escuela de Ingenieríay Ciencias, Puebla, Mexico; Faculty of Health and Life Sciences, INTI International University, 71800, Nilai, Negeri Sembilan, Malaysia.
Although algal-based membrane bioreactors (AMBRs) have been demonstrated to be effective in treating wastewater (landfill leachate), there needs to be more research into the effectiveness of these systems. This study aims to determine whether AMBR is effective in treating landfill leachate with hydraulic retention times (HRTs) of 8, 12, 14, 16, 21, and 24 h to maximize AMBR's energy efficiency, microalgal biomass production, and removal efficiency using artificial neural network (ANN) models. Experimental results and simulations indicate that biomass production in bioreactors depends heavily on HRT.
View Article and Find Full Text PDFBiomater Res
November 2023
Department of Energy, Materials and Energy Research Center, Karaj, Iran.
Coatings of metal-organic frameworks (MOFs) have potential applications in surface modification for medical implants, tissue engineering, and drug delivery systems. Therefore, developing an applicable method for surface-mounted MOF engineering to fabricate protective coating for implant tissue engineering is a crucial issue. Besides, the coating process was desgined for drug infusion and effect opposing chemical and mechanical resistance.
View Article and Find Full Text PDFEur Phys J C Part Fields
October 2023
Authors Affiliated with an Institute or an International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland.
The mass of the top quark is measured in 36.3 of LHC proton-proton collision data collected with the CMS detector at . The measurement uses a sample of top quark pair candidate events containing one isolated electron or muon and at least four jets in the final state.
View Article and Find Full Text PDFEur Phys J C Part Fields
October 2023
Authors Affiliated with an Institute or an International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland.
A search for decays to invisible particles of Higgs bosons produced in association with a top-antitop quark pair or a vector boson, which both decay to a fully hadronic final state, has been performed using proton-proton collision data collected at by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138. The 95% confidence level upper limit set on the branching fraction of the 125 Higgs boson to invisible particles, , is 0.54 (0.
View Article and Find Full Text PDFScience
September 2023
Department of Polymer Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran.
Eur Phys J C Part Fields
August 2023
Authors Affiliated with an Institute or an International Laboratory Covered by a Cooperation Agreement with CERN, Geneva, Switzerland.
Multijet events at large transverse momentum () are measured at using data recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of . The multiplicity of jets with that are produced in association with a high- dijet system is measured in various ranges of the of the jet with the highest transverse momentum and as a function of the azimuthal angle difference between the two highest jets in the dijet system. The differential production cross sections are measured as a function of the transverse momenta of the four highest jets.
View Article and Find Full Text PDF