Since meat color represents an important component in evaluating the aspect of food products, the studies from poultry field about efficient methods of storage on long term of the chicken carcasses ...approaches continuous finding/optimizing of some solutions about avoiding the negative consequences owed to oxidation, that include the color loss and/or its modification. The study goal was consisting in evaluation of the three different storage procedures by temperature and time (L1= -14°C, 30 days; L2= -16°C, 60 days; L3= -18°C, 90 days), on three cut anatomical regions (chest, upper and lower thigh), in order to characterize the broiler chicken meat color. The objective description of the chicken meat color frozen and defrozen was performed trough the CIE Lab Cartesian coordinate system. The luminosity of the studied cut anatomical regions ranged between an interval lower delimited by 47,27±1,184 units for lower thigh from L3 chicken group and upper by 53,35±1,142 units calculated for upper thigh collected from the carcasses of the same experimental group. Overall, the method of preservation determined a higher brightness to samples collected from L3 chicken group for chest and upper thigh muscles, respective L2 to lower thigh muscle of the counterparts from the other experimental group.
We present a 2700-year annually resolved chronology and snow accumulation history for the Roosevelt Island Climate Evolution (RICE) ice core, Ross Ice Shelf, West Antarctica. The core adds ...information on past accumulation changes in an otherwise poorly constrained sector of Antarctica.
High-resolution, well-dated climate archives provide an
opportunity to investigate the dynamic interactions of climate patterns
relevant for future projections. Here, we present data from a new, ...annually
dated ice core record from the eastern Ross Sea, named the Roosevelt Island
Climate Evolution (RICE) ice core. Comparison of this record with climate
reanalysis data for the 1979–2012 interval shows that RICE reliably captures
temperature and snow precipitation variability in the region. Trends over the
past 2700 years in RICE are shown to be distinct from those in West
Antarctica and the western Ross Sea captured by other ice cores. For most of
this interval, the eastern Ross Sea was warming (or showing isotopic
enrichment for other reasons), with increased snow accumulation and perhaps
decreased sea ice concentration. However, West Antarctica cooled and the
western Ross Sea showed no significant isotope temperature trend. This
pattern here is referred to as the Ross Sea Dipole. Notably, during the
Little Ice Age, West Antarctica and the western Ross Sea experienced colder
than average temperatures, while the eastern Ross Sea underwent a period of
warming or increased isotopic enrichment. From the 17th century onwards, this
dipole relationship changed. All three regions show current warming, with
snow accumulation declining in West Antarctica and the eastern Ross Sea but
increasing in the western Ross Sea. We interpret this pattern as reflecting
an increase in sea ice in the eastern Ross Sea with perhaps the establishment
of a modern Roosevelt Island polynya as a local moisture source for RICE.
Network slicing is a novel fifth generation (5G) concept that enables operators to create logical networks (slices), each dedicated to certain specific applications, on top of a common network ...infrastructure, computation and storage resources. These slices are logically isolated from each other with respect to network performance and security, providing services to vertical industries and various use cases. Accordingly, an orchestrator is needed in order to manage network resources for various slices. Among different orchestrators that have been developed, open source MANO (OSM) appears as a popular platform, providing a software stack for slice developers. In this paper, we present an implementation of deploying network slices based on the OSM automation platform and report preliminary experiments that have been performed. To validate our implementation, a specific media streaming use case has been selected and a slice with three pre-configured network services that contain a media server has been created.
This paper illustrates the effects of ferromagnetic nanoparticles on dielectric and magnetic properties of a polyolefinic adhesive polymer. The dielectric characteristics analyzed were the real and ...imaginary part of complex permittivity and dielectric losses of adhesive samples containing iron oxide nanoparticles. The analyzed magnetic parameters analyzed are the real and imaginary part of permeability and magnetic losses. The measurements were performed in a frequency range between 0.1 Hz to 10 MHz for dielectric parameters and 1 MHz to 3 GHz in case of magnetic permeability. Temperature was also varied between 30°C to 100°C, with 10°C increment.
The present paper is presenting a study regarding the dielectric behavior of a polymeric matrix based on polypropylene (PP) reinforced with 5% wt of multi-walled carbon nanotubes (MWCNTs). A complex ...qualitative and quantitative analysis of real and imaginary permittivity evolution as function of frequency and temperature allowing the understanding of polarization mechanisms. The dielectric measurement were performed via Broadband Dielectric Spectrometer in a wide range of frequency, from 10 Hz up to 10 Mhz, and at temperatures between 30°C to 120°C.
In this work a data acquisition board (DAQB) with data transfer by serial port and the associated virtual library included into LabVIEW software are presented. The DAQB developed around a National ...Semiconductor LM 12458 devices, have the capability to perform tasks that diminish the host processor work and is capable to communicate with the host computer by using a set of drivers associated. Highly integrated device circuit that has into it the most components of the board, facility in data handling, good metrological performance and a very low cost are the benefits of the proposed system. Using the LabView environment, we have realized a virtual instrument able to get from the prototype data acquisition board for environmental monitoring parameters the information about air pollution factors like CO, H2S, SO2, NO, NO2 etc. In order to get effective information about those factors and the monitoring points, this intelligent measurement system, compound from portable computer, and Gas detector. This system can be used to map the information about the air pollution factors dispersion in order to answer to the needs of residential and industrial areas expansion.
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