Filtering in non-Intrusive load monitoring

Being able to track appliances energy usage without the need of sensors can help occupants reduce their energy consumption. Non-intrusive load monitoring (NILM) is one name for this topic. One of the hardest problems NILM faces is the ability to run unsupervised – discovering appliances without prior knowledge – and to run independent of the differences in appliance mixes and operational characteristics found in various countries and regions. This thesis showcases two filters that are used to denoise power signals, which results in better clustering accuracy for NILM event based methods. Both filters show to outperform a state-of-the-art denoising filter, in terms of run-time. A fully unsupervised NILM solution is presented, the algorithm is based on a hybrid knapsack problem with a Gaussian mixture model. Finally, a novel metric is developed to measure NILM disaggregation performance. The metric shows to be robust under a set of fundamental test cases

Universal Non-Intrusive Load Monitoring (UNILM) Using Filter Pipelines, Probabilistic Knapsack, and Labelled Partition Maps

Being able to track appliances energy usage without the need of sensors can help occupants reduce their energy consumption to help save the environment all while saving money. Non-intrusive load monitoring (NILM) tries to do just that. One of the hardest problems NILM faces is the ability to run unsupervised -- discovering appliances without prior knowledge -- and to run independent of the differences in appliance mixes and operational characteristics found in various countries and regions. We propose a solution that can do this with the use of an advanced filter pipeline to preprocess the data, a Gaussian appliance model with a probabilistic knapsack algorithm to disaggregate the aggregate smart meter signal, and partition maps to label which appliances were found and how much energy they use no matter the country/region. Experimental results show that relatively complex appliance signals can be tracked accounting for 93.7% of the total aggregate energy consumed

La educación física en la normativa provincial

La promulgación de la Ley Nacional de Educación Nº 26206, acaecida en el pasado 2006, dejo atrás la Ley Federal de Educación, sancionada en 1993, la cual mereció tantas opciones encontradas, dejando entre otras cuestiones un anárquico sistema educativo propagado a lo largo y ancho de nuestro país. Ahora bien dado nuestro sistema federal, y ante la presencia de una legislación nacional macro, las provincias comenzaron a normatizarse para sus jurisdicciones, así entonces nos encontramos que la Pcía de Bs. As., en el 2007, sanciono la Ley Nº 13688, la cual incorpora interesantes aspectos de acuerdo con las líneas directrices dadas por la Ley Nacional de Educación. Sobre los tópicos introducidos en la normativa provincial, nos dedicaremos a aquellas referidas al área de la Educación Física.Panel: "Deporte, Política y Estado".Departamento de Educación Físic

Auditoría Energética de 100 viviendas de la Provincia de Santa Elena

El presente estudio detalla el comportamiento del consumo eléctrico de una vivienda en la provincia de Santa Elena. Para motivo de estudio se tomó una muestra de 100 viviendas en zonas distintas, recolectando datos en una visita a cada una de ellas interactuando con las personas quienes viven allí. Durante la visita se tomó datos técnicos, económicos y sociales gracias a la ayuda de cada uno de los usuarios de una forma muy detallada, sencilla y honesta, concientizando al consumidor del uso de la energía dentro del hogar y el impacto económico que este puede causar. Los datos obtenidos se archivaron en una hoja de encuesta para luego ser agrupados para su análisis estadístico, detallando el consumo de energía dentro de la vivienda, correspondiente al uso de equipos eléctrico para su análisis y encontrar soluciones que permitan el ahorro energético dentro del hogar de los ciudadanos de la provincia de Santa Elena.This paper develops details the behavior of the power consumption of a dwelling in the province of Santa Elena. For cause of survey we take a sample of 100 houses in different areas, collect data on a visit to each interacting with the people who live there. During the visit we was taking data technical, economic and social data with the help of individual users in a very detailed, simple and honest way, raising awareness to consumers of energy use in the home and the economic impact that this may cause . The data were archived on a survey sheet to then be grouped for statistical analysis, detailing energy consumption within the home, for the use of electrical equipment for testing and finding solutions to energy saving in the home citizens of the province of Santa Elena

¿Qué periodización es mejor (tradicional versus ondulada) para inducir cambios en la composición corporal y la fuerza de adultos jóvenes sanos?

The present study intends to investigate which type of programming is most effective for improving strength andbody composition in untrained young men. A total of 41 men participated (22.5 ± 2.8 years old, 75.6 ± 5.5 kg, 175.3 ± 8.4cm, 24.6 ± 1.8 kg · m-2) which were divided into two groups; Traditional periodization and Undulating periodization. Aprogram of eight weeks of training including back and chest exercises were applied twice a week for the two groups. Bothfat mass and fat-free mass were measured by Dual-energy X-ray absorptiometry, as well as the maximum repetition(RM) of the bench press and row by measuring the speed of execution with a linear encoder and the resting heart ratebefore and after the program. Data were analyzed using magnitude-based inference. Changes in athletes’ scores were assessed by using effect sizes and 90% confidence intervals. The differences within the group in pre-training and post-training were evaluated using the standardized effect size. Improvements in 1RM row, resting heart rate and fat-free mass were observed not possible to determine which training periodization produces greater adaptations in both groups with a possible and probable inference.El presente estudio pretende investigar qué tipo de programación es más efectiva para mejorar la fuerza y la composición corporal en hombres jóvenes. Participaron 41 hombres (22.5 ± 2.8 años, 7.,6 ± 5.5 kg, 175.3 ± 8.4 cm, 24.6 ± 1.8 kg · m-2) divididos en dos grupos; Periodización tradicional y Periodización ondulatoria. Se aplicó para los dos grupos un programa de ocho semanas de entrenamiento que incluía ejercicios de espalda y pecho, dos veces por semana. Se midió la masa grasa y la masa libre de grasa mediante el DEXA, el RM del press de banca y remo a través de la velocidad de ejecución, y la frecuencia cardiaca en reposo antes y después del programa. Los datos se analizaron mediante inferencia basada en la magnitud. Los cambios en las puntuaciones de los atletas se evaluaron utilizando tamaños del efecto e intervalos de confianza del 90%. Las diferencias dentro del grupo en pre-entrenamiento y post-entrenamiento se evaluaron utilizando el tamaño del efecto estandarizado. Se observaron mejoras en 1RM en remo, frecuencia cardiaca en reposo y masa libre de grasa. Los resultados muestran una posible y probable inferencia, no siendo posible determinar qué periodización del entrenamiento produce mayores adaptaciones

Retinal nerve fiber layer thickness analysis in normal and glaucomatous dogs using laser polarimetry diagnosis

Once the glaucomatous damage is progressive and irreversible, studies on the glaucoma onset as well as its development have been discussed. It is known that the early diagnostisis is extremely important to the stabilization and treatment. The retinal nerve fibers layer thickness analysis ''in vivo'' was proposed in human ophthalmology in order to establish the thickness changing, due to glaucoma, and have shown that such findings can be even detected six years priors to the first clinical signs. However, in Veterinary Medicine, such data need to be investigated and discussed. This study used two groups of dogs, a glaucomatous group and a normal group, that had been submitted to the retinal nerve fibers layer analysis through the GDx Nerve Fiber Analyzer. Statistical data showed that the nerve fiber layer of the glaucomatous group was thinner (p < 0.05), sustaining ganglion cells axons loss in glaucomatous eyes, compared to normal eyes.As lesões glaucomatosas são progressivas e irreversíveis. Estudos sobre o aparecimento e comportamento desta enfermidade vêm sendo discutidos na oftalmologia em geral. O diagnóstico precoce é de extrema importância para o tratamento e estabilização da mesma. A análise da espessura da camada de fibras nervosas retinianas ''in vivo'' foi proposta na oftalmologia humana, para estabelecer as alterações produzidas pelo glaucoma, e tem demonstrado que tais alterações podem ser detectadas até seis anos antes de alterações de campo visual e aumento de pressão intraocular. Entretanto, na Medicina Veterinária, estes dados carecem de estudo e discussão. Neste experimento foram utilizados dois grupos de cães, com olhos normais e olhos glaucomatosos, que foram submetidos à análise das fibras nervosas retinianas através do Analisador de Fibras Nervosas GDx. Os resultados estatísticos demonstraram que a camada de fibras nervosas dos olhos dos cães glaucomatosos estava mais delgada (p < 0,05) quando comparados aos olhos de cães normais, confirmando a perda de axônios das células ganglionares em olhos de cães com glaucoma

Propuesta en Supply Chain Management y Logística en la empresa muebles Quintero Hermanos

Encuesta, gestión de inventarios, modos y medios de transporte, encuesta proceso de aprovisionamiento y matriz evaluación de proveedores.Se presenta una propuesta en Supply Chain Management y logística para la empresa Muebles Quintero Hermanos, dedicada a la producción y comercialización de muebles en madera para el hogar. Identificando los diferentes elementos que conforman el SCM y planteando estrategias de mejora para la gestión de la cadena de suministro en cada uno de sus componentes.A proposal in Supply Chain Management and logistics is presented for the company Muebles Quintero Hermanos, involved in the production and accessories of wooden furniture for the home. Identifying the different elements that make up the SCM and proposing improvement strategies for supply chain management in each of its component

Risk Factors for Soil-Transmitted Helminth Infections during the First 3 Years of Life in the Tropics; Findings from a Birth Cohort.

Background: Soil-transmitted helminths (STH) infect more than 2 billion humans worldwide, causing significant morbidity in children. There are few data on the epidemiology and risk factors for infection in pre-school children. To investigate risk factors for infection in early childhood, we analysed data prospectively collected in the ECUAVIDA birth cohort in Ecuador. Methods and Findings: Children were recruited at birth and followed up to 3 years of age with periodic collection of stool samples that were examined microscopically for STH parasites. Data on social, demographic, and environmental risk factors were collected from the mother at time of enrolment. Associations between exposures and detection of STH infections were analysed by multivariable logistic regression. Data were analysed from 1,697 children for whom a stool sample was obtained at 3 years. 42.3% had at least one STH infection in the first 3 years of life and the most common infections were caused by A. lumbricoides (33.2% of children) and T. trichiura (21.2%). Hookworm infection was detected in 0.9% of children. Risk of STH infection was associated with factors indicative of poverty in our study population such as Afro-Ecuadorian ethnicity and low maternal educational level. Maternal STH infections during pregnancy were strong risk factors for any childhood STH infection, infections with either A. lumbricoides or T. trichiura, and early age of first STH infection. Children of mothers with moderate to high infections intensities with A. lumbricoides were most at risk. Conclusions: Our data show high rates of infection with STH parasites during the first 3 years of life in an Ecuadorian birth cohort, an observation that was strongly associated with maternal STH infections during pregnancy. The targeted treatment of women of childbearing age, in particular before pregnancy, with anthelmintic drugs could offer a novel approach to the prevention of STH infections in pre-school children

The importance of back contact modification in Cu2ZnSnSe4 solar cells: The role of a thin MoO2 layer

Cu2ZnSn(SxSe1−x)4 (CZTSSe) photovoltaic absorbers could be the earth-abundant and low toxicity replacement for the already commercialized CuIn1−xGaxSe2 (CIGS) thin film technology. In order to make this possible, specific research efforts applied to the bulk, front and back interfaces must be performed with the aim of improving CZTSSe performance. In this paper the importance of back contact modification to obtain high efficiency Cu2ZnSnSe4 (CZTSe) solar cells and to increase a paramount and limiting parameter such as VOC is highlighted. Several Mo configurations (monolayer, bi-layer and tri-layer) with different electrical and morphological properties are investigated in CZTSe solar cells. An optimum tri-layer configuration in order to minimize overselenization of the back contact during thermal annealing while keeping reasonable electrical features is defined. Additionally, a thin intermediate MoO2 layer that results in a very effective barrier against selenization and innovative way to efficiently assist in the CZTSe absorber sintering is introduced. The use of this layer enhances grain growth and subsequently the efficiency of solar cells increases via major VOC and FF improvement. An efficiency increase from 7.2% to 9.5% is obtained using a Mo tri-layer with a 20nm intermediate MoO2 layer

Epidemiology of Plasmodium vivax Malaria in Peru.

Malaria in Peru, dominated by Plasmodium vivax, remains a public health problem. The 1990s saw newly epidemic malaria emerge, primarily in the Loreto Department in the Amazon region, including areas near to Iquitos, the capital city, but sporadic malaria transmission also occurred in the 1990s-2000s in both north-coastal Peru and the gold mining regions of southeastern Peru. Although a Global Fund-supported intervention (PAMAFRO, 2005-2010) was temporally associated with a decrease of malaria transmission, from 2012 to the present, both P. vivax and Plasmodium falciparum malaria cases have rapidly increased. The Peruvian Ministry of Health continues to provide artemesinin-based combination therapy for microscopy-confirmed cases of P. falciparum and chloroquine-primaquine for P. vivax Malaria transmission continues in remote areas nonetheless, where the mobility of humans and parasites facilitates continued reintroduction outside of ongoing surveillance activities, which is critical to address for future malaria control and elimination efforts. Ongoing P. vivax research gaps in Peru include the following: identification of asymptomatic parasitemics, quantification of the contribution of patent and subpatent parasitemics to mosquito transmission, diagnosis of nonparasitemic hypnozoite carriers, and implementation of surveillance for potential emergence of chloroquine- and 8-aminoquinoline-resistant P. vivax Clinical trials of tafenoquine in Peru have been promising, and glucose-6-phosphate dehydrogenase deficiency in the region has not been observed to be a limitation to its use. Larger-scale challenges for P. vivax (and malaria in general) in Peru include logistical difficulties in accessing remote riverine populations, consequences of government policy and poverty trends, and obtaining international funding for malaria control and elimination