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Mostrando ítems 1654-1673 de 1794
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The Chen–Perks Distribution: Properties and Reliability Applications
(2023-07-05)In this paper, a statistical distribution is presented that possesses the ability to describe failure rates exhibiting both monotonic and non-monotonic behaviors, and the bathtub curve, which represents the performance of ... -
The construction of a photoabsorption spectrum using the FEFF 9 package: a detailed procedure
(2021-10-20)A procedure to obtain a photoabsorption spectrum assembled from first-principles calculations made with the FEFF 9 spectroscopy package is presented. The calculation consists of obtaining the absorption cross-section of ... -
The DMAIC methodology as a tool for process improvement: the case of a mexican maquiladora company
(Springer, 2021-07-03)Quality allows manufacturing companies to remain competitive, yet some manufacturers still struggle with a high percentage of defective products. In this chapter, we introduce the case study of a Mexican manufacturing ... -
The E-Strategy for Lean-Sigma Solutions, Latin American Case Study in a New Product Validation Process
(Springer, Cham, 2018-09-19)The international competition has challenged managers in Latin America to implement state-of-the-art methodologies for problem-solving and continuous improvement, and specifically, the production process validation has ... -
The effect of chemical attack on structural and magnetic properties of FeRh bulk alloys
(2023-08-17)The Fe100-xRhx alloys (48 ≤ x ≤ 52 at%), present a Magnetocaloric Effect (MCE) close to room temperature (RT), and first-order phase transition from antiferromagnetic (AFM) to ferromagnetic (FM) state during heating and ... -
The effect of cooling rate on magnetothermal properties of Fe49Rh51
(2020)We have investigated the effects of quenching rate on the thermal dependence of the magnetic entropy change ΔSM(T) and the magnetic field induced hysteresis loss through the antiferromagnetic (AFM) ↔ ferromagnetic (FM) ... -
The effect of cultural barriers in the perception of occupational risk in Mexican migrant workers
(2018-08-29)Antecedentes: La construcción es uno de los sectores productivos con mayor riesgo de accidentes ocupacionales y de mortalidad. La población latina en Texas es de 39.1% y el trabajo de construcción es ocupado hasta en un ... -
The effect of learning culture on training transfer: empirical evidence in Spanish teachers
(2018-11-02)This paper first analyses the impact of the training process on training transfer and second the moderating effects of learning culture on training transfer. The research hypotheses are tested with a sample of secondary ... -
The effectiveness of published continuum constitutive laws to predict stress-assisted densification of powder compacts
(2022-10-10)Commonly used constitutive laws for crystalline and viscous materials have been compared to predict the densification behavior under hot-pressing and sinter-forging. Experimental results, from literature for one loading ... -
THE EFFICIENCY OF DYE-SENSITIZED SOLAR CELLS USING CARBON AEROGEL WITH SILVER SULFIDE NANOPARTICLES AS COUNTER-ELECTRODES
(Sociedad mexicana de materiales, 2022-08-15)Currently, there are several types of solar cells. Above all, dye-sensitized solar cells (DSSC) have received much attention due to the advantages they have over conventional solar cells, such as low cost and simple ... -
THE EFFICIENCY OF ENCAPSULATION OF NUCLEIC ACIDS IN LIPID NANOPARTICLES FOR THE TREATMENT OF EYE DISEASES
(Sociedad Mexicana de Materiales, 2022-08-01)Background: Drug delivery systems have been developed to treat diseases associated with the eye. However, one of the greatest challenges is to improve routes of administration, specifically the periocular and intravitreal, ... -
The electronic states of ITO–MoS2: Experiment and theory
(2021-12-16)We report a combination of experimental results with density functional theory (DFT) calculations to understand electronic structure of indium tin oxide and molybdenum disulfide (ITO–MoS2) interface. Our results indicate ... -
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 ... -
The Frame of Nuclei on an Alexandroff Space
(2020-06-20)Let O𝑆 be the frame of open sets of a topological space S, and let 𝑁(O𝑆) be the frame of nuclei on O𝑆. For an Alexandroff space S, we prove that 𝑁(O𝑆) is spatial iff the infinite binary tree 𝒯2 does not embed ... -
The frame of the p-adic numbers and a p-adic Version of the Stone-Weierstrass Theorem in Pointfree Topology
(2020-03-15)The algebraic nature of a frame allows its definition by generators and relations. Joyal used this to introduce the frame of the real numbers and Banaschewski studied this frame with a particular emphasis on the pointfree ... -
The future of water in a desert river basin facing climate change and competing demands: A holistic approach to water sustainability in arid and semi-arid regions
(2023-02-09)Study region: The Middle Rio Grande (MRG), defined by the portion of the basin from Elephant Butte Reservoir in New Mexico to the confluence with the Rio Conchos in Far West Texas, U.S.A. and Northern Chihuahua, Mexico. ... -
The Impact of Environmental Factors on Academic Performance of University Students Taking Online Classes during the COVID-19 Pandemic in Mexico
(2020-11-05)The COVID-19 pandemic and the quarantine period determined that university students (human resource) in Mexico had adopted the online class modality, which required them to adapt themselves to new technologies and environmental ... -
The impacts of dumping sites on the marine environment: a system dynamics approach
(2023-04-06)The various forms of anthropogenic pollution of seas and oceans have been extensively studied in recent decades. The most signiicant factors are the destructive environmental impacts of marine dumping sites. These sites ... -
The importance of access to information and knowledge coordination on quality and economic benefits obtained from Six Sigma
(2019-11-04)This paper presents a structural equation model that relates knowledge coordination with access to information in the process of implementing Six Sigma and their impact on the quality and economic benefits obtained. The ... -
The importance of additive technology and manufacturing processes for laboratory experiments in aeronautics.
(2023-12-27)In recent years, world manufacturers of aviation equipment have made significant progress in the use of high efficiency (in terms of economic and time parameters) Additive Technology and Manufacturing processes. In ...