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A novel approach integrating IF-AHP, IF-DEMATEL and CoCoSo methods for sustainability management in food digital manufacturing supply chain systems
No full textPurpose: Food manufacturing supply chain systems are the most relevant wheels of the world economy since they provide essential products supporting daily life. Nevertheless, various supply inefficiencies have been reported to compromise food safety in different regions. Sustainable supplier management and digitalization practices have become cornerstone activities in addressing these shortcomings. Therefore, this paper proposes an integrated method for sustainability management in digital manufacturing supply chain systems (DMSCS) from the food industry. Design/methodology/approach: The Intuitionistic Fuzzy Analytic Hierarchy Process (IF-AHP) was used to weigh the criteria and subcriteria under uncertainty. Second, the Intuitionistic Fuzzy Decision-Making Trial and Evaluation Laboratory (IF-DEMATEL) was applied to determine the main DMSCS sustainability drivers whilst incorporating the expert's hesitancy. Finally, the Combined Compromise Solution (CoCoSo) was implemented to pinpoint the weaknesses hindering DMSCS sustainability. A case study from the pork supply chain was presented to validate this method. Findings: The most important criterion for DMSCS sustainability management is “location” while “manufacturing capacity” is the most significant dispatcher. Originality/value: This paper presents a novel approach integrating IF-AHP, IF-DEMATEL, and CoCoSo methods for sustainability management of DMSCS pillaring the food industry
A hybrid fuzzy MCDM approach to identify the intervention priority level of Covid-19 patients in the emergency department: A Case Study
No full textSeveral efforts have been made by hospital administrators to provide high-quality care for Covid-19-infected patients admitted to the Emergency Department (ED). Estimating the intervention priority level of Covid-19 patients is pivotal to underpin this process. However, diagnoses vary from one doctor to another considering various factors including experience, intuition, and education level. This problem is even more sharpened especially in absence of patient background and medical records. In addition, there is a large volume of infected persons requiring emergency care and a wide range of health and socio-personal particularities that need to be considered when deciding if these patients will be only treated at the ED, hospitalized, or returned home. Therefore, this study proposes a new integrated Multi-Criteria Decision-Making (MCDM) approach to identify the intervention priority level of Covid-19 infected patients. First, the Trapezoidal Neutrosophic Fuzzy Analytic Hierarchy Process (TNF-AHP) method was implemented to calculate the criteria and sub-criteria weights considering uncertainty and knowledge level. Second, the Intuitionistic Fuzzy Compromise Combined Solution (IF-CoCoSo) was applied to estimate the intervention priority level of Covid-19 patients and define actions to improve their health condition. The proposed approach was validated in a Mexican public hospital. As a result, an MCDM model comprising 5 criteria and 27 sub-criteria was designed to support this decision. Specifically, "Socio-personal characteristics" (overall weight = 0.195), "Hypogeusia" (overall weight = 0.0812), and "Chronic lung disease" (overall weight = 0.089) were found to be the most important decision elements in defining the intervention priority level of Covid-19 patients
Function algebras on the n -dimensional quantum complex space
No full textThis paper introduces a (universal) C*-algebra of continuous functions vanishing at infinity on the -dimensional quantum complex space. To this end, the well-behaved Hilbert space representations of the defining relations are classified. Then these representations are realized by multiplication operators on an 2-space. The C*-algebra of continuous functions vanishing at infinity is defined by considering an *-algebra such that its classical counterpart separates the points of the -dimensional complex space and by taking the operator norm closure of a universal representation of this algebra
A review on Pb-bearing nanoparticles, particulate matter and colloids released from mining and smelting activities
Get PDFLead (Pb) is one of the most paradoxical elements, both having diverse practical uses, as well as being extremely toxic to humans, and especially to children. The use of Pb records a steady growth with annual production currently exceeding 10 million metric tons. In spite of the environmental awareness of modern society, humans are still exposed to Pb through its emission by smelting and mining activities, and also by Pb-bearing mine wastes and soils. Here, we review the chemical and mineralogical forms of Pb generated from smelting and mining processes and subsequently altered in tailings, slag piles, and soils. In smelter plumes, Pb is emitted to the atmosphere either in the form of smaller nano-size particulate matter (PM) often associated with S, or larger micrometer Pb-bearing PM matter accompanied by oxide-silicate matrices. Pb-bearing phases in mine tailings and impacted soils depict a greater mineralogical and chemical complexity than those emitted from smelters and the larger particle size of this PM also leads to a lower Pb bioavailability. High resolution observations in aquatic system, soils and rock coatings impacted by smelting and mining activities show the presence of Pb-bearing phosphates, sulfides, sulfates, carbonates, and oxide nanoparticles. Larger micrometer size particles of Pb-bearing minerals form often through the aggregation of Pb-bearing nanoparticles, a process commonly referred to as crystallization through particle attachment. Mobilization of Pb within soil columns is strongly affected by the transport of colloids, especially those composed of organic matter and Fe-hydroxides because Pb is taken up efficiently by these two soil components. The extraordinary variability and complexities of all of these processes suggest that future reduction of Pb contamination in the environment and its impact on human health mainly depends on eliminating or greatly reducing Pb-release from smelting operations and tailings impoundments.Schindler, MichaelSantosh, MDotto, GuilhermeSilva O, Luis FHochella Jr, Michael
Unsupervised deep learning based variational autoencoder model for COVID-19 diagnosis and classification
Get PDFAt present times, COVID-19 has become a global illness and infected people has increased exponentially and it is difficult to control due to the non-availability of large quantity of testing kits. Artificial intelligence (AI) techniques including machine learning (ML), deep learning (DL), and computer vision (CV) approaches find useful for the recognition, analysis, and prediction of COVID-19. Several ML and DL techniques are trained to resolve the supervised learning issue. At the same time, the potential measure of the unsupervised learning technique is quite high. Therefore, unsupervised learning techniques can be designed in the existing DL models for proficient COVID-19 prediction. In this view, this paper introduces a novel unsupervised DL based variational autoencoder (UDL-VAE) model for COVID-19 detection and classification. The UDL-VAE model involved adaptive Wiener filtering (AWF) based preprocessing technique to enhance the image quality. Besides, Inception v4 with Adagrad technique is employed as a feature extractor and unsupervised VAE model is applied for the classification process. In order to verify the superior diagnostic performance of the UDL-VAE model, a set of experimentation was carried out to highlight the effective outcome of the UDL-VAE model. The obtained experimental values showcased the effectual results of the UDL-VAE model with the higher accuracy of 0.987 and 0.992 on the binary and multiple classes respectively.Mansour, Romany F.Escorcia-Gutierrez, Jose-will be generated-orcid-0000-0003-0518-3187-600Gamarra, Margarita-will be generated-orcid-0000-0003-1834-2984-600Gupta, DeepakCastillo, Oscarkumar, sachin-will be generated-orcid-0000-0002-1136-8009-60
Guías de laboratorio de prácticas forense y técnicas de juicio oral en laboral
No full textEl compendio de guías de laboratorio de prácticas forense y técnicas de juicio oral en laboral, enfocadas a derecho, incluyen prácticas que les permiten a los estudiantes fortalecer habilidades al aplicar conceptos de la asignatura en un ambiente de laboratorio. Esta guía articula experiencias fundamentales que incluyen normativa de seguridad aplicable, recursos a utilizar, procedimientos y un cuestionario de análisis. Con ello, los estudiantes podrán consolidar los conocimientos teórico-prácticos al aplicar conceptos de las temáticas de la asignatura prácticas forense y técnicas de juicio oral en laboral.Audiencia Oral de Conciliación en el Procedimiento Laboral y Seguridad Social 1 – 1. Introducción 1 – 2. Objetivo 2 – 3. Normativa de Seguridad 2 – 4. Recursos 2 – 5. Procedimiento Experimental 3 – 6. Cuestionario 3 – 7. Referencias 3 – 8. Pre Informe 4 Pre Informe Experiencia 1
Guías de laboratorio de física de ondas y óptica
No full textEl compendio de guías de laboratorio de física ondas y óptica incluye prácticas que les permiten a los estudiantes fortalecer habilidades al aplicar conceptos de la asignatura en un ambiente de laboratorio. Esta guía articula experiencias fundamentales que incluyen normativa de seguridad aplicable, recursos a utilizar, procedimientos, cálculos y un cuestionario de análisis. Con ello, los estudiantes podrán consolidar los conocimientos teórico-prácticos al aplicar conceptos de las temáticas de la asignatura física ondas y óptica.Densidad de Sólidos y Líquidos 7 -- Introducción 7 -- Objetivos 10 -- Normativa de Seguridad 10 -- Recursos 10 -- Procedimiento Experimentales 11 -- Cálculos 12 -- Cuestionario 12 -- Referencias 13 -- Pre- Informe 14 -- Principio de Arquímedes 17 -- Introducción 17 -- Objetivos 18 -- Normativa de Seguridad 18 -- Recursos 18 -- Procedimiento Experimentales 19 -- Cálculos 20 -- Cuestionario 20 -- Referencias 22 -- Pre- Informe 25 -- Dilatación Térmica 25 -- Introducción 25 -- Objetivos 26 -- Normativa de Seguridad 26 -- Recursos 26 -- Procedimiento Experimentales 26 -- Cálculos 28 -- Cuestionario 28 -- Referencias 28 -- Pre- Informe 29 -- Equilibrio Térmico 32 -- Introducción 32 -- Objetivos 32 -- Normativa de Seguridad 32 -- Recursos 33 -- Procedimiento Experimentales 33 -- Cálculos 35 -- Cuestionario 36 -- Referencias 37 -- Calor Especifico de un Sólido 41 -- Introducción 41 -- Objetivos 42 -- Normativa de Seguridad 42 -- Recursos 42 -- Procedimiento Experimentales 43 -- Cálculos 44 -- Cuestionario 45 -- Referencias 45 -- Cambio de Fase 49 -- Introducción 49 -- Objetivos 50 -- Normativa de Seguridad 50 -- Recursos 50 -- Procedimiento Experimentales 50 -- Cálculos 51 -- Cuestionario 52 -- Referencias 53 -- Pre- Informe 54 -- Sistema Masa Resorte 57 -- Introducción 58 -- Objetivos 58 -- Normativa de Seguridad 58 -- Recursos 59 -- Procedimiento Experimentales 59 – Cuestionario y cálculos 60 -- Referencias 61 -- Pre- Informe 62 -- Péndulo Simple 65 -- Introducción 65 -- Objetivos 68 -- Normativa de Seguridad 68 -- Recursos 68 -- Procedimiento Experimentales 69 -- Cálculos 71 -- Cuestionario 72 -- Péndulo Físico 74 -- Introducción 74 -- Objetivos 76 – Equipo 76 -- Procedimiento Experimentales 77 -- Cálculos 78 -- Cuestionario 79 -- Referencias 79 -- Ondas Estacionarias en una Cuerda 81 -- Introducción 81 -- Objetivos 84 -- Normativa de Seguridad 84 -- Recursos 84 -- Procedimiento Experimentales 85 -- Cálculos 86 -- Cuestionario 87 -- Referencias 88 -- Tubos Sonoros 89 -- Introducción 89 -- Objetivos 89 -- Normativa de Seguridad 90 -- Recursos 90 -- Procedimiento Experimentales 90 -- Cálculos 92 -- Cuestionario 92 -- Referencias 93 -- Formato para Informe 9
Guías de laboratorio de lenguaje sonoro
No full textEl compendio de guías de laboratorio de leguaje sonoro enfocadas a la comunicación social y medios digitales incluyen prácticas que les permiten a los estudiantes fortalecer habilidades al aplicar conceptos de la asignatura en un ambiente de laboratorio. Esta guía articula experiencias fundamentales que incluyen normativa de seguridad aplicable, recursos a utilizar, procedimientos y un cuestionario de análisis. Con ello, los estudiantes podrán consolidar los conocimientos teórico-prácticos al aplicar conceptos de las temáticas de la asignatura de lenguaje sonoro.Producción de Piezas Sonoras 3 -- 1. Introducción 4 -- 2. Objetivos 4 -- 3. Normativa de Seguridad 4 -- 4. Recursos 5 -- 5. Procedimientos Experimentales 5 -- 6. Cuestionario 6 -- 7. Referencias 6 -- 8. Pre-Informe 6 Pre-Informe Experiencia No 1
Induction motors with copper rotor: a new opportunity for increasing motor efficiency
No full textThe copper rotor induction motor (CURIM) was recently introduced because it has lower rotor fusion losses than the aluminum rotor (ALRIM). Furthermore, with CURIM, it is easier to reach IE4 and IE5 efficiency levels. The CURIM is advantageous for compact motors, escalators, and electric vehicle applications. However, CURIMs present slip, power factor, temperature increase, and torque decrease problems that must be analyzed. This study compared the economic feasibility of using CURIM with ALRIM by applying discount techniques. A case study was carried out in a sugar company with a cyclical operation, where 5.5 kW motors will be installed in the intermediate conductors of the mill's feeders. The facility works three shifts between 3 and 6 months. The cost increase (CI) of CURIM over ALRIM was between 1.1 and 1.5 times. With 3,600 h/year and 4,000 h/year of operation, the CI greater than 10%, it was found that the payback is more than four years, and the net present value (NPV) grows linearly