Precision measurement of magnetic characteristics of an article with nullification of external magnetic fields

An apparatus for characterizing the magnetic field of a device under test is discussed. The apparatus is comprised of five separate devices: (1) a device for nullifying the ambient magnetic fields in a test environment area with a constant applied magnetic field; (2) a device for rotating the device under test in the test environment area; (3) a device for sensing the magnetic field (to obtain a profile of the magnetic field) at a sensor location which is along the circumference of rotation; (4) a memory for storing the profiles; and (5) a processor coupled to the memory for characterizing the magnetic field of the device from the magnetic field profiles thus obtained

Triaxial Probe Magnetic Data Analysis

The Triaxial Magnetic Moment Analysis software uses measured magnetic field test data to compute dipole and quadrupole moment information from a hardware element. It is used to support JPL projects needing magnetic control and an understanding of the spacecraft-generated magnetic fields. Evaluation of the magnetic moment of an object consists of three steps: acquisition, conditioning, and analysis. This version of existing software was extensively rewritten for easier data acquisition, data analysis, and report presentation, including immediate feedback to the test operator during data acquisition. While prior JPL computer codes provided the same data content, this program has a better graphic display including original data overlaid with reconstructed results to show goodness of fit accuracy and better appearance of the report graphic page. Data are acquired using three magnetometers and two rotations of the device under test. A clean acquisition user interface presents required numeric data and graphic summaries, and the analysis module yields the best fit (least squares) for the magnetic dipole and/or quadrupole moment of a device. The acquisition module allows the user to record multiple data sets, selecting the best data to analyze, and is repeated three times for each of the z-axial and y-axial rotations. In this update, the y-axial rotation starting position has been changed to an option, allowing either the x- or z-axis to point towards the magnetometer. The code has been rewritten to use three simultaneous axes of magnetic data (three probes), now using two "rotations" of the device under test rather than the previous three rotations, thus reducing handling activities on the device under test. The present version of the software gathers data in one-degree increments, which permits much better accuracy of the fit ted data than the coarser data acquisition of the prior software. The data-conditioning module provides a clean data set for the analysis module. For multiple measurements at a given degree, the first measurement is used. For omitted measurements, the missing field is estimated by linear interpolation between the two nearest measurements. The analysis module was rewritten for the dual rotation, triaxial probe measurement process and now has better moment estimation accuracy, based on the finer one degree of data acquisition resolution. The magnetic moments thus computed are used as an input to summarize the total spacecraft field

Prueba de habilidades practicas CISCO CCNP

En este trabajo se desarrolla el trabajo final del diplomado de profundización de cisco ccnp, en el cual se desarrolla la prueba de habilidades. Con el desarrollo de dos escenarios realizaremos la configuración. En el primer escenario se realizara la configuración de la relación de vecino BGP por medio de cuatro routers y en el segundo escenario nos encontraremos con las configuraciones VTP en los diferentes modos y configuraciones de servidor y clientes en los switch, además manejaremos enlaces troncales y manejo de Vlan’s. Este trabajo cuenta con una descripción detallada del proceso de desarrollo mediante el uso de comandos ing, traceroute, show ip route, entre otros. En un mundo globalizado las redes de comunicación juegan un papel vital para optimizar los proceso, allí es donde la electrónica y en este caso el uso de las redes proporcionan la base del desarrollo. Palabras Clave: Networking, Vlan, CCNP, Red, Router, Switch, topologia y enrutamiento.In this work, the final work of the cisco ccnp deepening diploma course is developed, in which the skills test is developed. With the development of two scenarios we will carry out the configuration. In the first scenario, the configuration of the BGP neighbor relationship will be carried out by means of four routers and in the second scenario we will find the VTP configurations in the different modes and server and client configurations on the switches, we will also handle trunks and handling from Vlan's. This work has a detailed description of the development process through the use of ing, traceroute, and show ip route commands, among others. In a globalized world, communication networks play a vital role in optimizing processes, that's where electronics and in this case the use of networks provide the basis for development. Key Words: Networking, Vlan, CCNP, Network, Router, Switch, topology and routing

Forraje verde hidropónico y organopónico de maíz como suplemento nutricional para ovinos del Piedemonte Amazónico

Contextualization: Ruminants have a comparative advantage over other species, because their ability to digest the fiber fractions present in forages.   Knowledge gap: In tropical regions, due to changing environmental conditions, it is more difficult to produce pastures of high nutritional quality, resulting in forage seasonality that leads to supplementation with commercial feedstuffs that increase production costs.   Purpose: Evaluate the effect of supplementation with hydroponic green fodder (HGF) and organoponic green fodder (OGF) of corn on the productive performance of sheeps during the rearing phase, in the Amazonian piedmont of the Department of Putumayo.   Methodology: Twelve whole Dorper lambs, aged 90 days and weighing 14.62 kg, were used. They were distributed to three treatments consisting of: T0: base diet (BD), T1: hydroponic green fodder (HGF), T2: organoponic green fodder (OGF). Total weight gain (TWG), daily weight gain (DWG), total feed intake (TFI), feed conversion (FC) and feed efficiency (FE) were evaluated during a supplementation period of 45 days. A completely randomized design was used. Data was analyzed by analysis of variance and means were separated by Tukey's test with a significance level of (p<0.05).   Results and conclusions: Differences (p < 0.05) were found in TWG 3.66 kg (T1), 3.61 kg (T2) and 2.35 kg (T0); similarly, to DWG 81.39 g (T1), 80.30 g (T2) and 52.22 g (T0); TFI 1.33 kg (T1), 1. 27 kg (T2) and 1.05 kg (T0); the FC was estimated for T1 at 3.23, 3.27 in T2 and 5.13 in T0; and the FE was 0.063 (T1), 0.061 (T2) and 0.050 (T0), evidencing the influence of the type of diet used. The implementation of HGF and OGF becomes a viable alternative for food supplementation in sheeps production systems, where environmental conditions make it difficult to cultivate forage for grazing. It was concluded that the inclusion of 30 % of corn HGF in the diet of growing sheep improves their productive performance.Contextualización: Los rumiantes tienen una ventaja comparativa con relación a otras especies, gracias a la capacidad de digerir las fracciones de la fibra presente en los forrajes.    Vacío de conocimiento: En regiones tropicales, debido a las condiciones medioambientales cambiantes, se hace más difícil la producción de pasturas de alta calidad nutricional, derivando así en una estacionalidad forrajera.  Esto conlleva a que sea necesaria la suplementación con alimentos comerciales para los animales, lo que incrementa los costos de producción. Propósito del estudio: Evaluar el efecto de la suplementación con forraje verde hidropónico (FVH) y forraje verde organopónico (FVO) de maíz sobre el rendimiento productivo de ovinos en fase de levante, en el piedemonte amazónico del Departamento del Putumayo.    Metodología: Se utilizaron 12 corderos Dorper enteros con edad de 90 días y peso 14.62 kg, los cuales se distribuyeron para la aplicación de tres tratamientos consistentes en: T0: dieta base (DB), T1: forraje verde hidropónico (FVH) y T2: forraje verde organopónico (FVO). Se evaluó la ganancia de peso total (GPT), ganancia diaria de peso (GDP), consumo total de alimento (CTA), conversión alimenticia (CA) y eficiencia alimenticia (EA) durante un periodo de suplementación de 45 días. Se utilizó un diseño completamente al azar. Los datos se analizaron mediante análisis de varianza y las medias fueron separadas mediante la prueba de Tukey con un nivel de significancia de (p < 0.05).    Resultados y conclusiones: Se encontraron diferencias (p < 0.05) en la GPT 3.66 kg (T1), 3.61 kg (T2) y 2.35 kg (T0); de igual manera para la GDP 81.39 g (T1), 80.30 g (T2) y 52.22 g (T0); para el CTA 1.33 kg (T1), 1.27 kg (T2) y 1.05 kg (T0); la CA se estimó para el T1 en 3.23, 3.27 en T2 y 5.13 en T0; y la EA fue de 0.063 (T1), 0.061 (T2) y 0.050 (T0), evidenciando la influencia del tipo de dieta utilizada. La implementación de FVH y FVO se convierte en una alternativa viable de suplementación en los sistemas de producción de ovinos, en los que las condiciones medioambientales hacen difícil el cultivo de forrajes para pastoreo. Se concluye que la inclusión del 30 % de FVH de maíz en la dieta de ovinos en crecimiento mejora su rendimiento productivo

Tableros aglomerados biogénicos basados en cáscara de arroz y concentrado de proteína de soja: evaluación de las propiedades a la flexión y estabilidad dimensional bajo ambiente interior

Biobased particleboards from rice husk (RH) and soybean protein concentrate (SPC) based adhesive were evaluated over 180 days under indoor conditions. Two alternatives were evaluated: the incorporation of carvacrol to the SPC based adhesive, as a natural preservative, and the coating of the RH-SPC based particleboards with a polyurethane lacquer. Coated panels showed the lowest thickness swelling and water absorption at 2 and 24 h of immersion. The modulus of rupture (MOR) increased for the coated panels, while the elasticity modulus (MOE) was the same for all formulations. MOR and MOE obtained for all particleboards evaluated over time met the requirements established by ANSI Standard A208.1 along the 180 days of study. Results showed that particleboard have good physical and mechanical stability under indoor environmental conditions, presenting a good performance at least up to six months.Tableros aglomerados biogénicos basados en cascara de arroz (CA) y concentrado de proteína de soja (CPS) se evaluaron por 180 días en ambiente interior. Se estudiaron dos alternativas: la incorporación de carvacrol como un conservante natural para el adhesivo de CPS, y el recubrimiento de los tableros CA-CPS con una laca poliuretánica. Los paneles recubiertos mostraron un menor hinchamiento y absorción de agua para 2 y 24 h de inmersión. El módulo de rotura (MOR) aumentó para los paneles recubiertos, mientras que el módulo de elasticidad (MOE) fue el mismo para todas las formulaciones. Los valores de MOR y MOE obtenidos para todos los tableros de partículas evaluados a lo largo del tiempo cumplieron los requisitos establecidos por la norma ANSI A208.1 a durante los 180 días de estudio. Los resultados mostraron que los tableros aglomerados mantienen una adecuada estabilidad física y mecánica en ambiente interior durante al menos seis meses.Fil: Chalapud Narvaez, Mayra Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Ciannamea, Emiliano Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Martucci, Josefa Fabiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Ruseckaite, Roxana Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Stefani, Pablo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentin

Antifungal soybean protein concentrate adhesive as binder of rice husk particleboards

The aim of this research was to prepare an antifungal soybean protein concentrate (SPC) adhesive containing carvacrol (CRV) as a bioactive agent able to delay the attack of molds and yeast during storage of SPC adhesive at 4◦C as water-based systems. CRV was incorporated in SPC slurry at 0.5% v/v (~10 times its minimum inhibitory concentration against Aspergillus terreus, used as model fungus), to ensure its long-term action. CRV scarcely altered the thermal properties, structure and apparent viscosity of SPC adhesive. Active SPC aqueous dispersion was microbiologically stable for at least 30 days at 4◦C where the colonization begins, while control SPC was visually colonized from the second day. Rice husk (RH) particleboards of density ~900 kg/m3 were manufactured using the active SPC stored for 0, 10, 20, and 30 days as a binder. Modulus of elasticity, modulus of rupture and internal bond of RH–control SPC (without CRV) panels were 12.3 MPa, 2.65 GPa and 0.27 MPa, respectively, and were statistically unaltered compared with those obtained with fresh SPC, regardless of the presence of CRV or the storage time. This last implies that active SPC should not necessarily have to be prepared daily and/or be used immediately after its preparation. Since it is microbiologically stabilized, it can be store at least for 30 days, ensuring the stability of the protein. The quality of the adhesive was evidenced by the consistent properties of the adhesive, expanding its potential use and commercialization.Fil: Larregle, Andrés. Hospital Interzonal Especializado Materno Infantil; ArgentinaFil: Chalapud Narvaez, Mayra Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Fangio, Maria Florencia. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Ciannamea, Emiliano Manuel. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Stefani, Pablo Marcelo. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Martucci, Josefa Fabiana. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Ruseckaite, Roxana Alejandra. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentin

On the duration and cost variability of construction activities: an empirical study

The unique nature of construction projects can mean that construction activities often suffer from duration and cost variability. As this variability is unplanned it can present a problem when attempting to complete a project on time and on budget. Various factors causing this variability have been identified in the literature, but they predominantly refer to the nature and/or context of the whole project, rather than their specific activities. In this paper, the order of magnitude of and correlation between activity duration and cost variability is analyzed in 101 construction projects with over 5000 activities. To do this, the first four moments (mean, standard deviation, skewness and kurtosis) of actual versus planned duration and cost (log) ratios are analyzed by project, phase of execution and activity type. Results suggest that, contrary to common wisdom, construction activities do not end late on average. Instead, the large variability in the activity duration is the major factor causing significant project delays and cost overruns. The values of average activity duration and cost variability gathered in this study will also serve as a reference for construction managers to improve future construction planning and project simulation studies with more realistic data

Mapping of neurokinin-like immunoreactivity in the human brainstem

BACKGROUND: Using an indirect immunoperoxidase technique, we have studied the distribution of immunoreactive fibers and cell bodies containing neurokinin in the adult human brainstem with no prior history of neurological or psychiatric disease. RESULTS: Clusters of immunoreactive cell bodies and high densities of neurokinin-immunoreactive fibers were located in the periaqueductal gray, the dorsal motor nucleus of the vagus and in the reticular formation of the medulla, pons and mesencephalon. Moreover, immunoreactive cell bodies were found in the inferior colliculus, the raphe obscurus, the nucleus prepositus hypoglossi, and in the midline of the anterior medulla oblongata. In general, immunoreactive fibers containing neurokinin were observed throughout the whole brainstem. In addition to the nuclei mentioned above, the highest densities of such immunoreactive fibers were located in the spinal trigeminal nucleus, the lateral reticular nucleus, the nucleus of the solitary tract, the superior colliculus, the substantia nigra, the nucleus ambiguus, the gracile nucleus, the cuneate nucleus, the motor hypoglossal nucleus, the medial and superior vestibular nuclei, the nucleus prepositus hypoglossi and the interpeduncular nucleus. CONCLUSION: The widespread distribution of immunoreactive structures containing neurokinin in the human brainstem indicates that neurokinin might be involved in several physiological mechanisms, acting as a neurotransmitter and/or neuromodulator

Direct medical costs related to COVID-19 in Colombia

We studied 113 patients hospitalized by COVID-19, 51.3% men. On average, the hospital length of stay for COVID-19 hospitalized patient was 7,3 (± 6,2) days with a median cost of $1,688 (IQR 788-2,523). In women, the median direct medical cost of hospitalization was$1,328 (IQR $463-$2,098), while in men was 1.4 times greater. Being 60 years of age or older triggers hospitalization costs almost twice as high as those under this age ($1,813 vs.$2,994), and when the cost is compared by type of hospitalization, this difference is more than three times (ICU: 4,118; general ward: $1,312)