División de Nanociencias y Materiales: Envíos recientes
Mostrando ítems 81-100 de 595
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Magnetic properties of Fe nanoclusters: ab initio calculations of FeN N = 9,15, 27, 51, and 59
(Sociedad Mexicana de Física, A. C., 2006)"The magnetic properties of iron clusters (FeN, N = 9, 15, 27, 51, and 59 atoms) at T = 0 K with bcc–like structure and bulk parameters are studied using ab initio methods. In these studies we consider the spin–orbit ... -
Factorization method for some inhomogeneous Lienard equations
(Sociedad Mexicana de Física, A. C., 2021)"The factorization of inhomogeneous Li\'enard equations is performed showing that through the factorization conditions involved in the method one can obtain forcing terms for which closed-form solutions exist. Because of ... -
Insights into Equilibrium and Adsorption Rate of Phenol on Activated Carbon Pellets Derived from Cigarette Butts
(MDPI, 2021)"In the present work, the preparation of activated carbon pellets from cigarette butts by thermal treatment was evaluated. The morphological, textural, topological, and surface chemical properties were studied by SEM-EDX, ... -
El meteorito Charcas y su impacto
(Sociedad Mexicana de Física, 2007) -
Nanoestructuras y su caracterización por medio de microscopía electrónica de transmisión; ciencia y arte
(UNAM, 2020)"The description of nanometric systems is still being a challenging topic, for this reason the transmission electron microscopy (TEM) scope is exemplified in a didactic way using several nanosystems (Au nanoparticles and ... -
División de Materiales Avanzados-IPICyT*
(UNAM, 2016)"En este trabajo se describen las actividades en nanociencias y nanotecnologías (NyN) que se llevan a cabo en la División de Materiales Avanzados del Instituto Potosino de Investigación Científica y Tecnológica A.C. (IPICyT). ... -
Synthesis of a PVA drug delivery system for controlled release of a Tramadol–Dexketoprofen combination
(Springer, 2021)"The local administration of analgesic combinations by means of degradable polymeric drug delivery systems is an alternative for the management of postoperative pain. We formulated a Tramadol–Dexketoprofen combination (TDC) ... -
Exploring the Links Between Biophilic and Restorative Qualities of Exterior and Interior Spaces in Leon, Guanajuato, Mexico
(Frontiers Media S.A., 2021)"The interactive role of the ecological, architectural, biophilic, and sensory qualities of outdoor and indoor spaces in the restorative experiences of urban inhabitants is little known. We analyzed the restorative influence ... -
Effects of DC Magnetic Fields on Magnetoliposomes
(Frontiers Media S.A., 2021)"The potential use of magnetic nanoparticles (MNPs) in biomedicine as magnetic resonance, drug delivery, imagenology, hyperthermia, biosensors, and biological separation has been studied in different laboratories. One of ... -
Planeación en la era de las pandemias; una visión de futuro
(Academia Mexicana de Ciencias, 2020)"La pandemia ocasionada por el SARS-CoV-2 ha puesto al mundo entero al borde del colapso económico y de salud. Sorprende la falta de previsión en muchos países, México entre ellos. Tenemos la certeza de que otros eventos ... -
On the synthesis, structural transformation and magnetocaloric behavior of Ni37.5Co12.5Mn35Ti15 melt-spun ribbons
(American Institute of Physics, 2021)"We fabricated Ni37.5Co12.5Mn35Ti15 melt-spun ribbons at linear wheel speeds (WS) of 20 and 8 ms(-1) (series A and B, respectively). The effect of a short time thermal annealing (30 min.) between 1023 K and 1173 K on the ... -
Stationary states in a potential well
(UNESCO, 2007)"In the early days of the 20th century a set of important observations in atomic and molecular physics could not be explained on the basis of the laws of classical physics. One of the main findings was the emission of light ... -
Radius evolution for bubbles with elastic shells
(Elsevier, 2021)"We present an analysis of an extended Rayleigh–Plesset (RP) equation for a three dimensional cell of microorganisms such as bacteria or viruses in some liquid, where the cell membrane in bacteria or the envelope (capsid) ... -
Catalytic conversion of 5-hydroxymethylfurfural (5-HMF) over Pd-Ru/FAU zeolite catalysts
(Elsevier, 2021)"We present this study on FAU-type zeolites were prepared varying the Si/Al ratio (4, 5 and 6) and crystallization time (4, 6 and 8?h) to produce a highly pure and homogeneous material with enhanced surface area values. ... -
Multifractal analysis of the symmetry of a strictly isospectral energy landscape on a square lattice
(Elsevier, 2021)"We use the Höder regularity analysis to study the symmetry breaking and recovery due to a parametric potential generated via the strictly isospectral factorization method. The initial potential is two-dimensional and ... -
Superfluid Rayleigh–Plesset extension of FLRW cosmology
(Elsevier, 2021)"Guided by the analogy with the Rayleigh–Plesset dynamics of multielectron bubbles in superfluid He-4, we consider the cosmological FLRW evolution equation with additional cubic and sixth powers of the inverse of the scale ... -
Estudio del efecto elastocalórico en aleaciones con memoria de forma con distintas transformaciones de fase martensítica
(2021-11-18)"Una de las alternativas para economizar energía en la refrigeración comercial está relacionada con el uso de efectos calóricos en materiales sólidos. Este método no involucra el uso de gases que pueden afectar el medio ... -
Desarrollo del sistema nanoestructurado de SiO2/MNPs/Sulfametoxazol con propiedad antimicrobiana.
(2021-11-12)"Los materiales porosos a base de óxido de silicio (SiO2) han adquirido atención relevante en diversas áreas entre las que destaca la medicina para su uso como vehículos de administración de fármacos en aquellos casos en ... -
Complex network characteristic in the mycelium of Trichoderma atroviride
(2021-11-09)"Complex networks have been studied since the last century with great interest due to their growing presence in the modern world, thanks to social networks, the internet, air traffic networks, maritime networks, among ... -
Transporte electrónico en punto cuánticos
(2021-10-28)"En el transporte electrónico en puntos cuánticos pueden aparecer algunos efectos particulares dependiendo de las características especificas del sistema como la geometría o la presencia de campos magnéticos. En este trabajo ...