Search results for "Charge"

showing 10 items of 4686 documents

Preparation of tungstophosphoric acid/cerium-doped NH2-UiO-66 Z-scheme photocatalyst: a new candidate for green photo-oxidation of dibenzothiophene a…

2021

International audience; The goal of this study was to introduce an effective visible-light induced photocatalytic system with a good ability for photocatalytic oxidative desulfurization (PODS) and denitrogenation (PODN) using molecular oxygen (O2) as an oxidant. In this regard, tungestophosphoric acid (PW12) was supported onto cerium-doped NH2-UiO-66 (PW12/Ce-NUiO-66) and employed for the photo-oxidation of dibenzothiophene (DBT) and quinoline (Qu). Herein, using cerium (Ce) as a “mediator” facilitated the separation of charge carriers, while NH2-UiO-66 remarkably enhanced the surface area with plentiful adsorption sites and shifted the adsorption edge of PW12to the visible region. The sum …

pore volumeAdsorption edgesLight02 engineering and technology01 natural scienceschemistry.chemical_compound[SPI]Engineering Sciences [physics]quinolineVisible-light irradiationMaterials Chemistryoxidizing agentOxidative desulfurizationirradiationQuinolineCerium021001 nanoscience & nanotechnologyOxidantsFlue-gas desulfurizationCeriumDibenzothiophenePhotocatalysisCharge carrierCarrier mobility0210 nano-technologychemistry.chemical_element010402 general chemistryMaximum EfficiencyCatalysisArticleuraniumAdsorptionphosphotungstic acidpore size distributiondibenzothiophene derivativegreen chemistryphotooxidationDopingdesulfurizationGeneral Chemistrysurface areaPhotocatalytic systems0104 chemical sciencesVisible light inducedDibenzothiophenesTungstophosphoric acidMolecular oxygenPhotocatalytic activitychemistryadsorptiondesorptionoxygenphotocatalysisNuclear chemistrycatalyst
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The pentafluorophenyl group as π-acceptor for anions: a case study

2015

Chemical science 6(1), 354-359 (2015). doi:10.1039/C4SC02762K

positive chargesChemistryStereochemistryChemieSolid-stateGeneral Chemistryhapticities540side-chainsstructural dataAcceptor3. Good healthIonevaluation criteriakey elementsComputational chemistryGroup (periodic table)pentafluorophenylddc:540HapticitySide chainStatistical analysiselectron-deficientta116Chemical Science
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Partial Discharges in HVDC Cables - The Effect of the Temperature Gradient During Load Transients

2021

The paper investigates the role of the space charge accumulation phenomena in the inception of Partial Discharges (PD) in a defect within the bulk of the dielectrics of a High Voltage Direct Current (HVDC) cable. It is widespread accepted that the number of PD occurring in an HVDC cable during its lifetime is largely less than that under AC voltage stress. This is essentially due to higher values of the voltage between the conductor and the screen needed to trigger PD under a steady DC voltage than the same value under AC stress. Nevertheless, due to the dependency of the electrical conductivity of the insulation on the electric field and temperature, PD in HVDC cables is strongly influence…

power cable insulationHVDCMaterials sciencepartial discharge (PD)Electric field simulationDirect currentfinite element analysisMechanicsSpace chargeStress (mechanics)Settore ING-IND/31 - ElettrotecnicaTemperature gradientElectrical resistivity and conductivityload transientsTransient (oscillation)Electrical and Electronic EngineeringCurrent (fluid)VoltageIEEE Transactions on Dielectrics and Electrical Insulation
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"Figure 3" of "Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV"

2023

Invariant $p_T$ spectra of the $\phi$ meson for different centrality bins in Au+Au, Cu+Cu, $d$+Au, and $p$+$p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV.

ppg096$p$ $p$ --> CHARGED XCu Cu --> CHARGED XAu Au --> CHARGED Xmidrapiditytransverse momentum200.0$d$ Au --> CHARGED X
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"Figure 4" of "Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV"

2023

$R_{AA}$ vs. $p_T$ for $\phi$ in central Au+Au collisions, $R_{AA}$ vs. $p_T$ for $\phi$ and $\pi^0$ in 10-20% mid-central Au+Au collisions, and $R_{AA}$ vs. $p_T$ for $\phi$ and $p$+$\bar{p}$ in 60-92% and for $\pi^0$ in 80-92% peripheral Au+Au collisions. The global uncertainty of ~ 10% related to the $p$+$p$ reference normalization is not shown.

ppg096Au Au --> CHARGED Xmidrapiditytransverse momentum200.0
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"Figure 5" of "Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV"

2023

$R_{AA}$ vs. $p_T$ for $\phi$ for 30-40% centrality Au+Au and 0-10% centrality Cu+Cu collisions, and $R_{AA}$ vs. $p_T$ for $\phi$ and $\pi^0$ for 40-50% centrality Au+Au and 10-20% centrality Cu+Cu collisions. The global uncertainty of ~ 10% related to the $p$+$p$ reference normalization is not shown.

ppg096Cu Cu --> CHARGED XAu Au --> CHARGED Xmidrapiditytransverse momentum200.0
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"Figure 6a" of "Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV"

2023

$R_{AA}$ for $\phi$ integrated at $p_T$ > 2.2 GeV/$c$ in Cu+Cu and Au+Au collisions vs. $N_{part}$. The global uncertainty related to the $p$+$p$ reference normalization is shown as a box on the right in the figure from the paper.

ppg096Cu Cu --> CHARGED XAu Au --> CHARGED Xmidrapiditytransverse momentum200.0
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"Figure 7" of "Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV"

2023

$R_{dA}$ vs. $p_T$ for $\phi$, $\pi^0$, and ($p$+$\bar{p}$) for 0-20% centrality $d$+Au collisions, and $R_{dA}$ vs. $p_T$ for $\phi$, $\pi^0$, and ($p$+$\bar{p}$) for 60-88% peripheral $d$+Au collisions. The global uncertainty of ~ 10% related to the $p$+$p$ reference normalization is not shown.

ppg096midrapiditytransverse momentum200.0$d$ Au --> CHARGED X
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"Figure 3" of "Nuclear modification of psi^prime, chi_c and J/psi production in d+Au collisions at sqrt(s_NN) = 200 GeV"

2023

The $\psi^{\prime}$ nuclear modification factor, $R_{dAu}$, as a function of $N_{coll}$. Also included is the previously measured $J/\psi$ $R_{dAu}$ as a function of $N_{coll}$.

ppg151nuclear modification$\psi^\prime$ suppressionmidrapidity200.0$d$ Au --> CHARGED X
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"Figure 2" of "Nuclear modification of psi^prime, chi_c and J/psi production in d+Au collisions at sqrt(s_NN) = 200 GeV"

2023

The $\psi^{\prime}$, $\chi_c$, and $J/\psi$ $R_{dAu}$ for minimum bias centrality integrated $d$+Au collisions as a function of the quarkonia binding energy, where $J/\psi$ $R_{dAu}$ has been corrected for the effects of $\psi^{\prime}$ and $\chi_c$ feed-down.

ppg151nuclear modification$\psi^\prime$ suppressionmidrapidity200.0$d$ Au --> CHARGED X
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