Clinical methods for checking domesticated animals' wellbeing are lacking, as they give just irregular data and required a lot of asset interest as far as time and veterinary aptitude. The creature wellbeing obser...
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In this paper, a rectangular inset feed microstrip antenna with defected ground plane for UWB application is presented. It is found that by making symmetrical T-shape slots just beneath the radiating patch in the grou...
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ISBN:
(纸本)9781849198424
In this paper, a rectangular inset feed microstrip antenna with defected ground plane for UWB application is presented. It is found that by making symmetrical T-shape slots just beneath the radiating patch in the ground plane results UWB characteristics. Parasitic effect is minimized by optimization in the shape of slot like width and length, so that uniform return loss is obtained in the entire UWB range. The simulated and fabricated antenna design shows return loss below-12 dB and voltage standing wave ratio below 2 in the entire UWB range. A very wide impedance bandwidth of 11.2 GHz at-10dB return loss has been obtained. Further, band notching property to avoid the signal interference from existing WiMax system in the environment has been obtained by varying ground structure. The effect of first T-cut slot in ground structure has been observed to result band notching from 3.28 to 4.58 GHz. Therefore, the proposed antenna overcomes the signal interference problem with existing WiMax IEEE 802.16 system and can be suitably used for UWB application.
FPGAs are used for high speed machine learning inference, and are proving to be much faster and efficient than CPU. LightGBM is a gradient boosting algorithm that uses decision tree-based learners. In this work, we ha...
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In this paper, we firstly study the connectivity of ad hoc networks and establish the correlations of connectivity with average node degree. Then, based on the simulation result of connectivity, we present a probabili...
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The friction and wear characteristics of lauroyl glutamine, lauroyl glycine and lauroyl alanine, used as green additives in HVI 350 mineral lubricating oil, were evaluated on a four-ball tribotester. The morphologies ...
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The friction and wear characteristics of lauroyl glutamine, lauroyl glycine and lauroyl alanine, used as green additives in HVI 350 mineral lubricating oil, were evaluated on a four-ball tribotester. The morphologies and chemical species of the worn surfaces were analyzed by scanning electron microscope （SEM） and X-ray photoelectron spectroscope （XPS）, respectively. The test results indicated that the three fatty acyl amino acids could effectively improve the anti-wear and friction-reducing abilities of the HVI 350 mineral oil. The improvement in anti-wear and friction-reducing abilities of the mineral oil by the related amino acids was mainly ascribed to the formation of a composite boundary lubrication film due to the adsorption of amino acids on the friction surfaces.
In order to simulate the varied kinds of current and meet the acquirement on the different power, this paper proposes a multifunctional DC electronic load. The proposed DC electronic load is composed of many cascaded ...
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As people age, the frequency and impact of falls among the elderly continue to escalate, presenting significant health and mobility risks. Efficient detection and immediate response are crucial in reducing the severit...
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Based on the Monte Carlo Random Sampling theory, aggregate is considered to be polyhedron made up of some points and faces. So, from the view of computer graphics, we successfully established the random aggregate mode...
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ISBN:
(纸本)9781622761760
Based on the Monte Carlo Random Sampling theory, aggregate is considered to be polyhedron made up of some points and faces. So, from the view of computer graphics, we successfully established the random aggregate model. Finally, random polyhedron aggregate model is evaluated from three sides: aggregate shape and size, aggregate volume ratio, aggregate coordination number. The results show very good.
Free-standing Cu- and Ni-line patterns with varying line dimensions in the range of a few micrometers were manufactured by means of electrodeposition through a lithographically prepared mask. XRD studies revealed for ...
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Free-standing Cu- and Ni-line patterns with varying line dimensions in the range of a few micrometers were manufactured by means of electrodeposition through a lithographically prepared mask. XRD studies revealed for Cu-lines a pronounced influence of the pattern geometry on crystallographic texture and peak broadening. Information on the strain distribution within individual Cu-lines was obtained from FEM.
From clinical practice, it is known that the carotid artery bifurcation is a zone where the flux is strongly perturbed, and is sensitive to the development of atherosclerotic lesions. In this work the computerized sim...
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ISBN:
(纸本)0889864691
From clinical practice, it is known that the carotid artery bifurcation is a zone where the flux is strongly perturbed, and is sensitive to the development of atherosclerotic lesions. In this work the computerized simulation of the hemodynamic behavior of non-Newtonian blood flow in the 3D model of carotid artery bifurcation with 3 different apex angle and varying mass flow rates at the entrance of CCA, using CFD method is studied. A considerable approach toward the realistic physiological conditions, such as applying the shear thinning behavior of viscoelastic blood flow by employing Carreau-Yasuda model in a practical geometry has been made. It is observed that the lesions might be appeared at the apex of the bifurcation junction and represents a risk factor by modification the blood flow pattern, flow separation, recirculation regions and wall shear stress gradients. Also sites within the carotid artery that experience low and oscillating shear stress namely the posterior wall of carotid sinus in ICA, are more likely to develop atherosclerotic plaque which could lead to stroke.
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