Materials Literature
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The ability to control excitons in semiconductors underlies numerous proposed applications, from excitonic circuits to energy transport. Two dimensional (2D) semiconductors are particularly promising for room-temperature applications due to their large exciton binding energy and enormous stretchability. Although the s…
Abstract The defects in perovskite films are one of the most non‐negligible factors that can attenuate the performances of perovskite solar cell. This work fabricates defect‐reduced perovskite film by using the lead indicator (dithizone) as an additive of perovskite functional layer. The dithizone can retard the cryst…
In this study, a bundle of poly(l-lactic acid) (PLLA) hollow nanofibers was prepared through anodic aluminum oxide (AAO) membrane wetting method. The infiltrated PLLA in the nanopores of AAO membrane were isolated via etching of the membrane using phosphoric acid, preserving their original nanostructure. The outer dia…
Abstract Several magnetic materials consisting of dipoles owe their properties to the specific nature of the dipole–dipole interaction. In the present work, systems of particles possessing a dipole moment arranged on various types of 2D and 3D structures, completely arbitrary and, in some 2D instances, periodic (albei…
A new idea of prepared method for BiVO4 nano‐powders hydrothermal synthesis process was developed to avert the existent shortcomings of hydrothermal method. The thermal stability, phase structure, light absorption property, and morphology of the catalyst prepared were characterized by thermogravimetric analyzer (TG),…
Investigate the impact on seam appearance due to fabric weight, bending rigidity and static thread tensions at single needle lock stitch sewing machine. The intersection among the stated parameters is crucial at stitched fabric to predict seam appearance. Sixteen different weights of fabrics are investigated at fixed…
Received 21 June 2020Accepted 22 July 2020DOI:https://doi.org/10.1103/PhysRevLett.125.079702© 2020 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasCharge density wavesPhysical SystemsMott insulatorsTransition metal dichalcogenidesTechniquesCluster expansionHubbard modelScanning tunneling microsc…
Os modelos detalhados (DM) de turbinas eólicas (WT) demandam um elevado número de variáveis e equações e, consequentemente, grandes esforços computacionais, o que estimula a utilização de modelos simplificados (SM). Contudo, tais SM são dedicados principalmente a estudos de estabilidade transitória, de forma que não f…
The use of sound waves to study the integrity of various metal structures is the most relevant method. The relevance is traced, in particular, in the ease of conducting such experiments, as well as its cheapness. The design of various parts requires the use of modern computer technology, which, using a mathematical ap…
В процессе проектирования сухого дока, строящегося в г. Большой Камень, у российских специалистов возникли расхождения с проектантами из КНР по вопросам обеспечения остойчивости батопорта и его балластировки. По мнению российской стороны, требование китайских норм к метацентрической высоте (не менее 1,0 м) является чр…
The reaction of terpyridine derivatives L1/L2 with Ln(NO3)3 led to the formation of three new mononuclear complexes with formulae [LnL1(CH3OH)(H2O)(NO3)2]NO3•2CH3OH (Ln=Yb, 1; Ln=Dy, 2) and [DyL2(NO3)3(H2O)]•2CH3OH (3). Complexes 1, 2 and 3 were characterized by crystal structure determination, magnetic properties stu…
Research on metal adsorption isotherms with activated carbon oil palm empty fruit bunches in liquid waste. Oil palm empty fruit bunches are used as adsorbent for metal absorption. Oil palm empty fruit bunches are prepared at 105O C for 24 hours to get a constant weight then are characterized by SEM. Oil palm empty fru…
Currently, the success of nanotechnology affects several areas of science, medicine, technology and, especially, the food industry. Silver nanoparticles (Ag-NPs) stand out, with their antimicrobial effect. Salmonella is a cause of foodborne diseases and there are reports of resistant serotypes. The use of Ag-NPs is an…
Abstract The theoretical basis of traditional polymer flooding technology is to improve the viscosity of displacement phase, in order to enhance oil recovery significantly. However, polymer solution is a continuous phase viscous fluid, and it cannot distinguish the large or small pore, which causes the damage in low p…
Received 13 April 2020Accepted 22 July 2020DOI:https://doi.org/10.1103/PhysRevLett.125.079701© 2020 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasCharge density wavesPhysical SystemsMott insulatorsTransition metal dichalcogenidesTechniquesCluster expansionHubbard modelScanning tunneling micros…
Interfacial reactions of FeCr 2 O 4 oxide films in high-temperature pure water, oxygenated water and hydrogenated water have been investigated by means of ab initio molecular dynamics simulation based on the Born-Oppenheimer scheme. The simulation results show that the surface configuration of FeCr 2 O 4 (100) is stab…
The Apodi Plateau is a Brazilian with important agricultural activity, which is located between the states of Ceará and Rio Grande do Norte, in an area of the Caatinga biome. Therefore, this work was developed to characterize the morphological, physical, chemical and mineralogical attributes of soil profiles of this r…
In order to achieve the commercialization of proton exchange membrane fuel cells (PEMFCs), it is necessary to synthesize electrocatalyst with higher electrochemical activity.In this study, PtCo nano-alloy electrocatalyst was prepared by liquid phase synthesis method with sodium borohydride as reducing agent, triethyla…
Discute-se no presente artigo propostas alternativas e complementares às Leis de J.C.Maxwell, do eletromagnetismo clássico, baseando-se em determinadas hipóteses, exemplos hipotéticos e cálculos, com resultados que possam inferir novas interpretações acerca do fenômeno físico densidade de corrente de condução. Essas n…
Ce1-xPrxO2-d catalysts (x = 0.1, 0.2, 0.3 and 0.4) (CPOx) are synthesized using the glycine nitrate process. The CPO are used as catalysts in a hybrid direct carbon fuel cell with good results. The highest effect is achieved with the CPO30 compound.