Thermoforesis is a phenomenon that can expand new horizons of what the not too distant future there is the possibility of building machines and nano-scale structures. That is why the importance for engineers and scientist to know how these models behave. In other words it you understand their behavior and properties of these nano machines…
DetailsThe word Janus has its origin in the Roman god Janus. In Roman mythology this was the god of the gates, doors, doorways, beginning and endings; who is depicted with a double-faced head, each looking in opposite directions. Thus, in nature and materials science, asymmetric particles with two incompatible sides are called Janus particles. The…
DetailsSome people have several errors before submit a paper, especially, if is not their native language. This list contains some common errors to take into consideration. Verb tense: As a rule, use past tense to describe events that have happened. Such as, procedures and results that you have obtained. Reference to results should be in…
DetailsA Janus particle is composed of two fused parts, two-faced, like the Roman god Janus of doorways who is usually depicted with his faces looking in opposite directions. These asymmetric particles have two distinctly different sides, i.e. each face made from a different surface chemistry, or substance, than the other one. This kind of particles…
DetailsPara el avance en el conocimiento personal, hay diferentes procesos por los cuales uno tiene que pasar, uno de los cuales es el estudio. En varios casos, estos temas están grandemente establecidos, y en muchos casos no. Sin embargo, para los temas “establecidos” de la ciencia hay mucha bibliografía para las diferentes áreas, es posible…
DetailsPowder compression in rotary tablet presses is used as a major step in the manufacture of pharmaceuticals, cosmetics, catalysts, personal care products, military ordnance, etc. In powder compaction applications, consistent flow of powders into the small die of a tablet press is key to producing tablets with consistent properties. Manufacturers often use mechanical devices, called…
DetailsDuring the past years the use of plastic grocery bags at stores has been controversial. Plastic grocery bags are handy and durable, but after the bread and milk are put away, most of the bags wind up in landfills. The plastic bags represent a threat to the environment because these are not degradable. Recently in…
DetailsLa actividad física controlada y planificada (deporte), nos reporta muchos y grandes beneficios. Pero para obtenerlos tenemos que ser constantes en su práctica. Lo mínimo recomendado Un mínimo de tres horas semanales. Un mínimo de cuarenta minutos por sesión. Alrededor del 95% de ejercicio aeróbico ligero y medio. Alrededor del 5% de ejercicios de intensidad…
DetailsX-ray photoelectron spectroscopy (XPS) is an analytical technique that studies the surface of structures, based upon the photoelectric effect. Each atom in the surface has core electron with the characteristic binding energy that is theoretically equal to the ionization energy of that electron. When an X-ray beam directs to the sample surface, the energy of…
DetailsLos rayos X se han utilizado durante décadas para estudiar la estructura de los materiales cristalinos. Sin embargo, en las técnicas de los últimos años se han ideado que, en combinación con la disponibilidad de intensos haces colimados de fuentes de radiación, han transformado los rayos X en una versátil y potente herramienta para el…
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