Publicaciones: Envíos recientes
Mostrando ítems 1001-1020 de 1794
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A new method for assessing the utility of powder bed fusion (PBF) feedstock
(2020-01-29)Recycling metallic powders used in the additive manufacturing (AM) process is essential for reducing the process cost, manufacturing time, energy consumption, and metallic waste. In this paper, the focus is on pore formation ... -
Effect of Ag2S-BSA nanoparticle size on 3T3 fibroblast cell line cytotoxicity
(2020-03-31)Silver sulfide nanoparticles, smaller than 5 nm, are of great interest in the biomedical field due to their improved optical properties from the quantum confinement of charge carriers. The effect of silver sulfide ... -
Super-Twisting Algorithm Applied to Velocity Control of DC Motor without Mechanical Sensors Dependence
(2020-11-19)A DC motor velocity control in feedback systems usually requires a velocity sensor, which increases the controller cost. Additionally, the velocity sensor used in industrial applications presents several disadvantages ... -
Facile Synthesis of Ultrasmall, Highly Stable, and Biocompatible Gold Nanoparticles Stabilized with Lipoic Acid: Cytotoxicity and Structural Characterization
(2020-07-28)Using the colloidal method, and lipoic acid as a stabilizer, ultrasmall gold nanoparticles with an average size of 2.5 nm were synthesized. They are highly stable, have COOH functional groups, at concentrations lower than ... -
Base de datos de flujos verticales de dioxido de carbono en ecosistemas terrestres y costeros en México
(2018-08-01)El dióxido de carbono (CO2) es uno de los principales gases de efecto invernadero (GEI) cuyo incremento en la atmósfera está asociado con el calentamiento global. Con el objetivo de promover estudios de síntesis que lleven ... -
Effect of Thermal Barrier Coating on the Thermal Stress of Gas Microturbine Blades and Nozzles
(2020-09-21)Thermal barrier coatings play a key role in the operational life of microturbines because they reduce thermal stress in the turbine components. In this work, numerical computations were carried out to assess new materials ... -
Stress-strength Weibull analysis with different shape parameter B and probabilistic safety factor
(2020-11-05)Since products are subjected to a random variable stress-strength, their reliability must be determined using the stress-strength analysis. Unfortunately, when both, stress and strength, follow a Weibull distribution with ... -
In Situ Thermal-Stage Fitted-STEM Characterization of Spherical-Shaped Co/MoS2 Nanoparticles for Conversion of Heavy Crude Oils
(2020-10-27)We report the thermal stability of spherically shaped cobalt-promoted molybdenum disulfide (Co/MoS2) nano-catalysts from in-situ heating under electron irradiation in the scanning transmission electron microscope (STEM) ... -
Reducing The Effective Dose of Cisplatin Using Gold Nanoparticles as Carriers
(2020-03-30)Nanotechnology is a frequent treatment for cancer. Nanomaterials are the vehicles which deliver drugs in smaller but equally effective quantities. The aim of this investigation is to synthesize gold nanoparticles, functionalize ... -
Effect of Ag2S-BSA nanoparticle size on 3T3 fibroblast cell line cytotoxicity
(2020-05-04)Silver sulfide nanoparticles, smaller than 5 nm, are of great interest in the biomedical field due to their improved optical properties from the quantum confinement of charge carriers. The effect of silver sulfide nanoparticles ... -
Additive manufacturing of green composites: Poly (lactic acid) reinforced with keratin materials obtained from Angora rabbit hair
(2020-11-24)In this research, additive manufacturing of polylactic acid (PLA) reinforced with keratin was studied. Keratin was obtained from Angora rabbit hair and modified with NaOH. Scanning electron microscopy (SEM) images showed ... -
Seed-mediated synthesis and PEG coating of gold nanoparticles for controlling morphology and sizes
(2020-11-26)A significant area of research is biomedical applications of nanoparticles which involves efforts to control the physicochemical properties through simple and scalable processes. Gold nanoparticles have received considerable ... -
Antibacterial activity and in vitro cytotoxicity studies of Ag-doped CaO nanoparticles
(2021-01-15)CaO nanoparticles can be used in different fields, such as medical and food, some studies suggest that they have poor antimicrobial properties. In this work, CaO nanoparticles doped with different concentrations of Ag were ... -
The evaluation of conceptual design through dynamic simulation: A proposal based on TRIZ and system Dynamics
(2020-08-31)Conceptual design is a decisive stage in the new product development process and responsible for the originality and uniqueness of a product. Also, it is in this stage where technical feasibility becomes a critical issue ... -
Urban land cover type determines the sensitivity of carbon dioxide fluxes to precipitation in Phoenix, Arizona
(2020-02-12)Urbanization modifies land surface characteristics with consequent impacts on local energy, water, and carbon dioxide (CO2) fluxes. Despite the disproportionate impact of cities on CO2 emissions, few studies have directly ... -
Social-LCA. Methodological Proposal Applied to Physical Activity Program Implementation into Old People’s Routines
(2020-06-18)Progressive population aging and life expectancy increase in Spain, resulting from medical and social improvements, have put this population segment in a privileged position for the implementation of new methodologies ... -
Bioactivation of zirconia surface with laminin protein coating via plasma etching and chemical modification
(2020-08-18)Surface modification offers a promising alternative to provide bioactivity to implanted inert biomaterials, improving their integration and performance with living tissues. In this contribution, zirconia has been used as ... -
Estimación en la Intención de Agarres: Cilíndrico, Esférico y Gancho Utilizando Redes Neuronales Profundas
(2020-05-21)Upper extremities amputations can produce different disability degrees in the amputated person, this is acerbated even more, when it happens during active working life. So, for this reason, it is of social importance the ... -
Bio-inspired guidance method for a soft landing on a Near-Earth Asteroid
(2020-11-15)Achieving a soft landing over the surface of small celestial bodies is an essential maneuver in space to advance the status of space exploration, sample collecting and in-situ resource utilization, among other on-orbit ...