24,764 research outputs found
Performances of a Newly High Sensitive Trilayer F/Cu/F GMI Sensor
We have selected stress-annealed nanocrystalline Fe-based ribbons for
ferromagnetic/copper/ferromagnetic sensors exhibiting high magneto-impedance
ratio. Longitudinal magneto-impedance reaches 400% at 60 kHz and longitudinal
magneto-resistance increases up to 1300% around 200 kHz.Comment: 4 pages, 6 figures, Sensors and Actuators A (in review
Boas práticas agropecuárias e sistema de análise de perigos e pontos críticos de controle como ferramentas para produção de leite de cabra com qualidade.
bitstream/CNPC/20245/1/cot69.pd
Rastreabilidade na produção de leite de cabra: diferencial para um agronegócio sustentável.
bitstream/item/92886/1/Midia-Rastreabilidade-na-Producao-de-Leite-de-Cabra.pdfDisponível também em:
Instabilities and propagation of neutrino magnetohydrodynamic waves in arbitrary direction
In a previous work [16], a new model was introduced, taking into account the
role of the Fermi weak force due to neutrinos coupled to magnetohydrodynamic
plasmas. The resulting neutrino-magnetohydrodynamics was investigated in a
particular geometry associated with the magnetosonic wave, where the ambient
magnetic field and the wavevector are perpendicular. The corresponding fast,
short wavelength neutrino beam instability was then obtained in the context of
supernova parameters. The present communication generalizes these results,
allowing for arbitrary direction of wave propagation, including fast and slow
magnetohydrodynamic waves and the intermediate cases of oblique angles. The
numerical estimates of the neutrino-plasma instabilities are derived in extreme
astrophysical environments where dense neutrino beams exist
Constraining Elko Dark Matter at the LHC with Monophoton Events
A mass dimension one fermion, also known as Elko, constitutes a dark matter
candidate which might interact with photons at the tree level in a specific
fashion. In this work, we investigate the constraints imposed by unitarity and
LHC data on this type of interactions using the search for new physics in
monophoton events. We found that Elkos which can explain the dark matter relic
abundance mainly through electromagnetic interactions are excluded at the
95\%CL by the 8 TeV LHC data for masses up to 1 TeV.Comment: 6 pages, 4 figure
Public sector and pesticide industry perception of the role of pesticides in integrated pest control programs.
Tuberculosis of the chest
The relationship between tuberculosis and mankind has been known for many centuries, with the disease being one of the major causes of illness and death. During the early 1980s, there was a widespread belief that the disease was being controlled, but by the mid-1980s, the number of cases increased. This change in the epidemiological picture has several causes, of which the AIDS epidemic, the progression of poverty in developing countries, the increase in the number of elderly people with an altered immune status and the emergence of multidrug-resistant tuberculosis are the most important. Mainly due to this epidemiological change, the radiological patterns of the disease are also being altered, with the classical distinction between primary and postprimary disease fading and atypical presentations in groups with an altered immune response being increasingly reported. Therefore, the radiologist must be able not only to recognize the classical features of primary and postprimary tuberculosis but also to be familiar with the atypical patterns found in immuno-compromised and elderly patients, since an early diagnosis is generally associated with a greater therapeutic efficacy. Radiologists are, in this way, presented with a new challenge at the beginning of this millennium
- …