420 research outputs found
Sobre a especificação e verificação do padrão de programação paralela PCR em TLA+
Physical limitations in processor design have made the computer industry shift from improving the speed of a single processor to increasing the number of processing core units. But the design of software to exploit parallel processing power in a correct and cost-effective way is a challenging task requiring a high degree of expertise. In 2017, Pérez and Yovine proposed a platform-agnostic parallel programming pattern called PCR, that eases writing parallel code. In this work, we formalize the PCR pattern in terms of TLA+ - a formal specification language for concurrent systems that is being used at places such as Intel, Amazon and Microsoft. We seek to provide a formal framework mainly for (1) expressing high level PCR designs and prove their functional correctness in the sense that their parallel computation computes a given mathematical function, and (2) being able to formally relate different PCR designs. In this way, we contribute to the state of the art in formal verification of parallel programs by leveraging TLA+-related tools to proving properties about high-level PCR-based algorithms such as their functional correctness and refinement.Limitaciones fÃsicas en el diseño de microprocesadores han hecho que la industria de computadoras pase de mejorar la velocidad de un solo procesador a aumentar el número de unidades centrales de procesamiento. Pero el diseño de software para explotar la potencia de procesamiento paralelo de manera correcta y efectiva es una tarea desafiante que requiere un alto grado de experiencia. En 2017, Pérez y Yovine propusieron un patrón de programación paralela agnóstico de plataforma llamado PCR, que facilita la escritura de código paralelo. En este trabajo, formalizamos el patrón PCR en términos de TLA+ - un lenguaje de especificación formal para sistemas concurrentes que se está utilizando en lugares como Intel, Amazon y Microsoft. Buscamos proporcionar un marco formal principalmente para (1) expresar diseños PCR de alto nivel y probar su corrección funcional en el sentido de que su computación paralela calcula una función matemática dada, y (2) poder relacionar formalmente diferentes diseños PCR. De esta manera, contribuimos al estado del arte en la verificación formal de programas paralelos aprovechando las herramientas asociadas a TLA+ para probar propiedades sobre algoritmos PCR de alto nivel, como su corrección funcional y refinamiento.As limitações fÃsicas no design do processador fizeram com que a indústria de computadores mudasse de melhorar a velocidade de um único processador para aumentar o número de unidades centrais de processamento. Mas o design de software para explorar o poder de processamento paralelo de maneira correta e econômica é uma tarefa desafiadora que requer um alto grau de especialização. Em 2017, Pérez e Yovine propuseram um padrão de programação paralela independente de plataforma chamado PCR, que facilita a escrita de código paralelo. Neste trabalho, formalizamos o padrão PCR em termos de TLA+ - uma linguagem de especificação formal para sistemas concorrentes que está sendo utilizada em locais como Intel, Amazon e Microsoft. Procuramos fornecer uma estrutura formal principalmente para (1) expressar designs de PCR de alto nÃvel e provar sua correção funcional no sentido de que sua computação paralela calcula uma determinada função matemática e (2) ser capaz de relacionar formalmente diferentes designs de PCR. Dessa forma, contribuÃmos para o estado da arte na verificação formal de programas paralelos, aproveitando as ferramentas relacionadas ao TLA+ para provar propriedades sobre algoritmos baseados em PCR de alto nÃvel, como correção e refinamento funcional
Spatio-temporal patterns of beaked whale echolocation signals in the North Pacific.
At least ten species of beaked whales inhabit the North Pacific, but little is known about their abundance, ecology, and behavior, as they are elusive and difficult to distinguish visually at sea. Six of these species produce known species-specific frequency modulated (FM) echolocation pulses: Baird's, Blainville's, Cuvier's, Deraniyagala's, Longman's, and Stejneger's beaked whales. Additionally, one described FM pulse (BWC) from Cross Seamount, Hawai'i, and three unknown FM pulse types (BW40, BW43, BW70) have been identified from almost 11 cumulative years of autonomous recordings at 24 sites throughout the North Pacific. Most sites had a dominant FM pulse type with other types being either absent or limited. There was not a strong seasonal influence on the occurrence of these signals at any site, but longer time series may reveal smaller, consistent fluctuations. Only the species producing BWC signals, detected throughout the Pacific Islands region, consistently showed a diel cycle with nocturnal foraging. By comparing stranding and sighting information with acoustic findings, we hypothesize that BWC signals are produced by ginkgo-toothed beaked whales. BW43 signal encounters were restricted to Southern California and may be produced by Perrin's beaked whale, known only from Californian waters. BW70 signals were detected in the southern Gulf of California, which is prime habitat for Pygmy beaked whales. Hubb's beaked whale may have produced the BW40 signals encountered off central and southern California; however, these signals were also recorded off Pearl and Hermes Reef and Wake Atoll, which are well south of their known range
Optimizing both catalyst preparation and catalytic behaviour for the oxidative dehydrogenation of ethane of Ni-Sn-O catalysts
[EN] Bulk Ni-Sn-O catalysts have been synthesized, tested in the oxidative dehydrogenation of ethane and characterized by several physicochemical techniques. The catalysts have been prepared by evaporation of the corresponding salts using several additives in the synthesis gel, i.e. ammonium hydroxide, nitric acid, glyoxylic acid or oxalic acid, in the synthesis gel. The catalysts were finally calcined at 500 degrees C in air. Important changes in the catalytic behaviour have been observed depending on the additive. In fact, an important improvement in the catalytic performance is observed especially when some additives, such as glyoxylic or oxalic acid, are used. Thus the productivity to ethylene multiplies by 6 compared to the reference Ni-Sn-O catalyst if appropriate templates are used, and this is the result of an improvement in both the catalytic activity and the selectivity to ethylene. This improved performance has been explained in terms of the decrease of the crystallite size (and the increase in the surface area of catalyst) as well as the modification of the lattice parameter of nickel oxide.The authors would like to acknowledge the DGICYT in Spain (CTQ2015-68951-C3-1-R and CTQ2012-37925-C03-2) for financial support. We also thank the University of Valencia and SCSIE-UV for assistanceSolsona Espriu, BE.; López Nieto, JM.; Agouram, S.; Soriano RodrÃguez, MD.; Dejoz, A.; Vázquez, MI.; Concepción Heydorn, P. (2016). Optimizing both catalyst preparation and catalytic behaviour for the oxidative dehydrogenation of ethane of Ni-Sn-O catalysts. Topics in Catalysis. 59(17-18):1564-1572. https://doi.org/10.1007/s11244-016-0674-zS156415725917-18Heracleous E, Lee AF, Wilson K, Lemonidou AA (2005) J Catal 231:159–171Heracleous E, Lemonidou AA (2006) J Catal 237:162–174Savova B, Loridant S, Filkova D, Millet JMM (2010) Appl Catal A 390:148–157Heracleous E, Lemonidou AA (2010) J Catal 270:67–75Solsona B, Nieto JML, Concepcion P, Dejoz A, Ivars F, Vazquez MI (2011) J Catal 280:28–39Skoufa Z, Heracleous E, Lemonidou AA (2012) Catal Today 192:169–176Zhu H, Ould-Chikh S, Anjum DH, Sun M, Biausque G, Basset JM, Caps V (2012) J Catal 285:292–303Skoufa Z, Heracleous E, Lemonidou AA (2012) Chem Eng Sci 84:48–56Zhu H, Rosenfeld DC, Anjum DH, Caps V, Basset JM (2015) ChemSusChem 8:1254–1263Heracleous E, Lemonidou AA (2015) J Catal 322:118–129Solsona B, Concepcion P, Demicol B, Hernandez S, Delgado JJ, Calvino JJ, Nieto JML (2012) J Catal 295:104–114Nieto JML, Solsona B, Grasselli RK, Concepción P (2014) Top Catal 57:1248–1255Popescu I, Skoufa Z, Heracleous E, Lemonidou AA, Marcu IC (2015) PCCP 17:8138–8147Zhang X, Gong Y, Yu G, Xie Y (2002) J Mol Catal A 180:293–298Popescu I, Skoufa Z, Heracleous E, Lemonidou A, Marcu I-C (2015) Phys Chem Chem Phys 17:8138–8147Nakamura KI, Miyake T, Konishi T, Suzuki T (2006) J Mol Catal A 260:144–151Solsona B, Dejoz AM, Vazquez MI, Ivars F, Nieto JML (2009) Top Catal 52:751–757Bortolozzi JP, Gutierrez LB, Ulla MA (2013) Appl Catal A 452:179–188Takeguchi T, Furukawa S, Inoue M (2001) J Catal 202:14–24Richardson JT, Turk B, Twigg MV (1996) Appl Catal 148:97–112Biju V, Khadar MA (2002) J Nanopart Res 4:247–253Van Veenendaal MA, Sawatzky GA (1993) Phys Rev Lett 70:2459–2462Vedrine JC, Hollinger G, Duc TM (1978) J Phys Chem 82:1515–1520Salagre P, Fierro JLG, Medina F, Sueiras JE (1996) J Mol Catal A 106:125–13
Wine making : defects in the process that originate costs of nonquality
Los costos de calidad se asocian a su planificación, control, evaluación de la conformidad y a los costos ocasionados por no cumplir con los requisitos de satisfacción de la fábrica o del cliente (productos o servicios con defectos). Los objetivos del trabajo son identificar las causas que provocan la ausencia o pérdida de calidad (no calidad), proponer acciones correctivas en el proceso de elaboración de vinos, midiendo la frecuencia de aparición y clasificando los costos de no calidad. Conocer la frecuencia de aparición de las causas de no calidad en las etapas del proceso de elaboración de vinos permitirá optimizar la gestión y reducir los costos al disminuir sus correcciones. El estudio identifica
los factores que alteran la calidad de los vinos. La mayor frecuencia de defectos es de origen prefermentativo, que junto con los de crianza, conservación y originados en el viñedo explican el 79% de los mismos. Los defectos encontrados constituyen costos de prevención y evaluación pero serán falla interna si la bodega está integrada y se atribuirán a falla externa en el caso de productor no integrado. Los establecimientos en los que se pudo identificar y establecer frecuencia de aparición de los defectos que influyen en la calidad del vino son aquellos que tienen algún sistema de gestión de la calidad, ya que han normalizado los registros que actuarán como herramienta de gestión. Los encargados de gerenciar las bodegas deberÃan conocer los puntos crÃticos del proceso para realizar la gestión preventiva de los posibles defectos. Los costos que inciden en la calidad del producto a comercializar se deben registrar y controlar, y trazarlos hacia adelante para
conocer la incidencia de los mismos en los precios finales, y hacia atrás para que en la planificación de la próxima elaboración se contemple
la prevención correspondiente.The costs associated with quality planning, monitoring, evaluation of conformity and the costs incurred by failing to meet the requirements of satisfaction of the factory or customer (products or services with defects). Objectives of the study are to identify the causes the absence or loss of quality (not quality), propose corrective actions in the process of developing wines, by measuring the frequency and classifying the costs of not quality. Knowing the frequency of the causes of nonquality stages of Wine making process will optimize the management and cut costs by reducing its correction. The study identifies the factors that alter the quality of wines. The higher frequency of defects has origin in fermentation or in stages prior to this, along with the breeding, conservation and originated in the vineyard explaining 79% of them. Defects identified are costs of prevention and internal evaluation, but will fail if the cellar is integrated and will be allocated to external fault in the case of non-integrated producer. Wineries in which was able to identify and establish frequency of the defects that affect wine quality are those who have some system
of quality management which is a cost of prevention and assessment, as they have standardized records that serve as a management
tool. Those responsible for managing the wineries should be aware of the critical points of the process for conducting the preventive management of potential defects. The costs that have to do with the quality of the product to market, must be registered, controlled and
monitored forward to know the impact of the same in the final prices and backward so that in planning the next development is contemplated prevention.Fil: Alturria, Laura V..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y SocialesFil: Antoniolli, Ester R..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y SocialesFil: Ceresa, Alejandro M..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y SocialesFil: Solsona, Juan E..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y SocialesFil: Winter, Patricia.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y Sociale
Using radium isotopes to characterize water ages and coastal mixing rates: A sensitivity analysis
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W., 2006, PAPERS SUMMER UNDERG, P51 Taniguchi M, 2003, BIOGEOCHEMISTRY, V66, P35, DOI 10.1023/B:BIOG.0000006090.25949.8d Taylor J. R., 1997, INTRO ERROR ANAL, P160 Turner IL, 1997, J COASTAL RES, V13, P46 Weinstein Y., 2006, RADIOACT ENV, V8, P360, DOI DOI 10.1016/S1569-4860(05)08029-0 Windom HL, 2006, MAR CHEM, V102, P252, DOI 10.1016/j.marchem.2006.06.016 Knee, Karen L. Garcia-Solsona, Ester Garcia-Orellana, Jordi Boehm, Alexandria B. Paytan, Adina 4 AMER SOC LIMNOLOGY OCEANOGRAPHY WACO LIMNOL OCEANOGR-METHNumerous studies have used naturally occurring Ra isotopes (Ra-223, Ra-224, Ra-226, and Ra-228, with half-lives of 11.4 d, 3.7 d, 1600 y, and 5.8 y, respectively) to quantify water mass ages, coastal ocean mixing rates, and submarine groundwater discharge (SGD). Using Monte Carlo models, this study investigated how uncertainties in Ra isotope activities and the derived activity ratios (AR) arising from analytical uncertainty and natural variability affect the uncertainty associated with Ra-derived water ages and eddy diffusion coefficients, both of which can be used to calculate SGD. Analytical uncertainties associated with Ra-224, Ra-226, and Ra-228 activities were reported in most published studies to be less than 10% of sample activity; those reported for Ra-223 ranged from 7% to 40%. Relative uncertainty related to natural variability-estimated from the variability in Ra-223 and Ra-224 activities of replicate field samples-ranged from 15% to 50% and was similar for Ra-223 activity, Ra-224 activity, and the Ra-224/Ra-223 AR. Our analysis revealed that AR-based water ages shorter than 3-5 d often have relative uncertainties greater than 100%, potentially limiting their utility. Uncertainties in eddy diffusion coefficients estimated based on cross-shore gradients in short-lived Ra isotope activity were greater when fewer points were used to determine the linear trend, when the coefficient of determination (R-2) was low, and when Ra-224, rather than Ra-223, was used. By exploring the uncertainties associated with Ra-derived water ages and eddy diffusion coefficients, this study will enable researchers to apply these methods more effectively and to reduce uncertainty
Wines of Mendoza : price on supermarket shelf vs. quality in blind tasting
Cuando un posible consumidor de
vinos decide su compra, lo hace influenciado
por factores relacionados no sólo con la
calidad del producto sino también con el
conocimiento que tiene de la marca. Esta
investigación se inició con un mapeo de
vinos ofrecidos en puntos de venta minorista
del Gran Mendoza, para luego realizar una
degustación a ciegas con panelistas de
la provincia de Mendoza, de sectores de
ingresos medios, cuya única condición era
la de ser consumidor de vinos. Los vinos
elegidos para degustar fueron los que tenÃan
presencia importante en los lugares de
venta. Además se realizó una selección en
góndola simulada, con vinos presentados
con sus precios y packaging. La apreciación
sensorial se complementó con el precio que
el consumidor pagarÃa por lo que estaba
degustando. En la selección en góndola el
panelista no eligió el envase tetrabrik aunque
después, al degustar a ciegas el producto,
habÃa predisposición a pagar mayor precio
que el de mercado. La explicación de tal
comportamiento podrÃa encontrarse en que
el envase tetrabrik podrÃa asociarse a una
clase social baja, mientras que la botella
a las clases sociales de mayor ingreso. El
análisis sensorial (sentidos: visual, olfativo,
gustativo y equilibrio) permitió observar
que los panelistas otorgan puntuaciones
superiores a la media del rango especificado,
en los precios más bajos. El consumidor
tiene disposición a pagar precios menores
a medida que los precios en góndola son
más altos.When a potential customer decides to
purchase wine, he does so under the influence of
factors related not only to the product quality but
also to his knowledge of the brand. This research
began by mapping the wines offered in retail
outlets of Mendoza, followed by blind tasting
by a panel with people from middle-income
sectors of Mendoza, on the sole condition of
being a wine consumer. The wines chosen for
tasting were those with significant presence
in retail locations. A selection on a simulated
supermarket shelf was also conducted, with
wines displayed with their price and packaging.
Sensory assessment was supplemented with the
price the consumer would pay for what he tasted.
When selecting from the supermarket shelf, the
panelist did not choose the packaging cartons,
but then, in doing a blind tasting of the product,
he showed willingness to pay a higher price for
it than its market value. The explanation for such
behavior could be that the packaging carton may
be associated to a lower social class, whereas
the bottle is related to higher-income classes.
The sensory analysis (senses: visual, olfactory,
gustatory and balance) allowed us to observe
that panelists give above-average scores in
the specified range to the lowest prices. The
consumer is willing to pay lower prices as prices
go higher on the supermarket shelf.Fil: Antoniolli, Ester R..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Enológicas y Agroalimentarias. Cátedra de EnologÃa II e Industrias Afines.Fil: Alturria, Laura V..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Enológicas y Agroalimentarias. Cátedra de EnologÃa II e Industrias Afines.Fil: Ceresa, Alejandro M..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Enológicas y Agroalimentarias. Cátedra de EnologÃa II e Industrias Afines.Fil: Solsona, Juan E..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Enológicas y Agroalimentarias. Cátedra de EnologÃa II e Industrias Afines.Fil: Winter, Patricia.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Enológicas y Agroalimentarias. Cátedra de EnologÃa II e Industrias Afines.Fil: Galiotti, Hugo.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Enológicas y AgroalimentariasFil: Fonzar, Alfredo.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Enológicas y Agroalimentarias. Cátedra de EnologÃa II e Industrias Afines
Peaches O'Henry : : economic impact by losses of quality
El durazno O'Henry para consumo en
fresco es una variedades apta para la exportación.
Consecuentemente se propone un
método sencillo para determinar las pérdidas
de calidad que impiden obtener mejores
precios en los mercados.. Las mismas
se relacionan con una mala gestión en todos
los niveles: producción, empaque y
comercialización, y la deficiente capacitación
del personal involucrado.
En la temporada 1999/2000 el granizo fue
la causa más frecuente en precosecha; sus
marcas explican el 70 % de los frutos con falta
de calidad. En cambio, el principal factor en
cosecha fueron las picaduras de grafolita, dando
80 % de frutos sin calidad exportable. En
galpón de empaque, el mal manejo
poscosecha -revelado en machucones, marcas
de uñas y rajaduras- originó el 30 % de las
causas de no calidad; si se le agregan las picaduras
de grafolita, el porcentaje se aproxima
al 60 %. Ambas causas pueden minimizarse
con buena planificación y capacitación.
Con simulación económica se detectó -en la
precitada temporada- 20 % de pérdida de calidad
de una partida lo cual motiva una disminución superior al 13 % en los ingresos. Esta
diferencia depende no sólo del peso relativo
de las distintas calidades sino también del precio
pactado.O'Henry is a fresh consumption peach
cultivar with exportation possibilities. This
project proposes a simple methodology that
permits to identify the reasons of no quality
in fruits that difficult reaching best prices in
local and foreign markets. Lacks of quality
are related with bad management in all levels
(production, packing and commercialization)
and with deficient training of involved
personnel.
In season 1999/2000, hail was the most
frequent reason detected in preharvest; its
marks explain 70 % of no quality in fruits.
Instead, at harvest Grapholita bites were the
main factor and they explained 80 % of fruits
without export quality. At the packing-house,
post harvest bad management (revealed in
hits, nail marks, bruises) explained 30 % of
no quality reasons. If that is added to fruits
with Grapholita bites, proportion raises to 60
%. Both reasons can be minimized with
planning and training. Economic simulation
allowed detect that, in analized season,
losses of quality in 20 % of the batch cause
income reductions of more than 13 % in business.
This discrepancy depends not only
on relative weight of different qualities, but
on deal prices in each market.Fil: Antoniolli, Ester R..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y SocialesFil: Gil, Flavia.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Roby, Osvaldo.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y SocialesFil: Podestá, Lidia.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Cánovas, Laura.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Biomatemática y FisicoquÃmicaFil: RodrÃguez, MarÃa Eugenia.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Producción AgropecuariaFil: Fischer, Sandra.
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y SocialesFil: Solsona, Juan E..
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Departamento de Ciencias Económico-JurÃdico y Sociale
Compensación feedforward para controladores de estructura variable empleados en sistemas electrónicos de potencia
Este trabajo propone una compensación feedforward para rechazar perturbaciones en sistemas no lineales, del tipo afÃn en la variable de control, que trabajan bajo control en modo de deslizamiento real. Se obtiene la ley con que debe ser modificado el ciclo de trabajo de las llaves involucradas en el control, para obtener un efectivo rechazo de las perturbaciones.
Se hace hincapié en la aplicación de la técnica propuesta a sistemas electrónicos de potencia que emplean la estrategia de control de PWM realimentado.In this paper feedforward compensation in order to reject disturbances for affine nonlinear systems using real sliding mode control strategy is proposed. The law of the modified duty cycle of the switches in order to reject the disturbances is obtained.
Application to power electronic systems using the feedbaok PWM strategy is presented.Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señale
Compensación feedforward para controladores de estructura variable empleados en sistemas electrónicos de potencia
Este trabajo propone una compensación feedforward para rechazar perturbaciones en sistemas no lineales, del tipo afÃn en la variable de control, que trabajan bajo control en modo de deslizamiento real. Se obtiene la ley con que debe ser modificado el ciclo de trabajo de las llaves involucradas en el control, para obtener un efectivo rechazo de las perturbaciones.
Se hace hincapié en la aplicación de la técnica propuesta a sistemas electrónicos de potencia que emplean la estrategia de control de PWM realimentado.In this paper feedforward compensation in order to reject disturbances for affine nonlinear systems using real sliding mode control strategy is proposed. The law of the modified duty cycle of the switches in order to reject the disturbances is obtained.
Application to power electronic systems using the feedbaok PWM strategy is presented.Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señale
Compensación feedforward para controladores de estructura variable empleados en sistemas electrónicos de potencia
Este trabajo propone una compensación feedforward para rechazar perturbaciones en sistemas no lineales, del tipo afÃn en la variable de control, que trabajan bajo control en modo de deslizamiento real. Se obtiene la ley con que debe ser modificado el ciclo de trabajo de las llaves involucradas en el control, para obtener un efectivo rechazo de las perturbaciones.
Se hace hincapié en la aplicación de la técnica propuesta a sistemas electrónicos de potencia que emplean la estrategia de control de PWM realimentado.In this paper feedforward compensation in order to reject disturbances for affine nonlinear systems using real sliding mode control strategy is proposed. The law of the modified duty cycle of the switches in order to reject the disturbances is obtained.
Application to power electronic systems using the feedbaok PWM strategy is presented.Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señale
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