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An antenna which is used for multipurpose like WiMAX, RADAR altimeter and X-band applications proposed. A tri-band multiple-input–multiple-output antenna resonates at 2.9 GHz, 4.3 GHz and 7.7 GHz is proposed. The uniqueness of the antenna is mutual coupling, − 53.44 dB at 2.9 GHz, − 28 dB at 4.3 GHz and − 26.55 dB at 7.7 GHz. It is evaluated in terms of mutual coupling in two ways (1) DGS (2) DGS with Vias. It is observed that mutual coupling using DGS with Vias is reduced further by 12 dB. The ECC of antenna is less than 0.0001 The simulated and measured results are compared in terms of S-parameters, Co-pol, X-pol and ECC.

Current study deals with the microstructural characterization of five different plates of steel with carbon concentration ranging from ultra-low to moderately high. Phase analysis was carried out using XRD technique. The XRD results were analyzed through Rietveld refinement and Williamson Hall plots. Rietveld refinement was carried out to understand the effect of carbon concentration on the lattice parameters of the above steel samples in as-received condition and also after deformation under uni-axial tensile loading. Lattice parameters obtained from refinement showed the strong dependence on carbon concentration of the given steels. But the failed specimens showed somewhat complex results as Spheroidized high carbon steel, Low carbon steel and IF steel showed an increase in lattice parameter whereas Medium carbon steel and Microalloyed steel showed a contraction in lattice parameter. Williamson Hall plot gave the crystallite size, microstrain and dislocation density in the steels. For IF and Microalloyed steels the dislocation density in the material is found to be higher after deformation whereas dislocation density decreased in Spheroidized high carbon steel, Medium carbon steel and Low carbon steel.

Many attempts to predict sports using historical data have been made, but people continue to outperform computers in predicting sports outcomes. There are various trading firms that specialize in sports research and forecasting. They track their data with sophisticated software and statistics algorithms, but they still have experts reviewing games by hand in some cases. In this paper, we recommend that the package have a transition time for live cricket and football scores. For cricbuzz school cricket and ESPN football games, we use the API. The programme displays live scores for all games, including T20, test matches, IPL, one-day international tournaments, and all football matches. The software is written in python.

For this research, a 5 KW standalone wind and solar power combined system is developed, manufactured and ground tested. The dimension of this transportable device is width= 8 ft, 5 in, depth =∼ 8 in, 4 in, and height = ∼ 38 ft. This device comprises of four solar panels (120 watts), a wind turbine (1.5 KW), a solar charge controller, remote power storage, battery and battery control. Without the need for a grid, this hybrid device can be used in highways, and various other applications. A summary and characterizations of this device and the photovoltaic data collected in the month of April (Mangalore) are provided. To further increase the performance of solar panel technology, this device can be used. The plan of construction the hybrid energy tower is simple. The hybrid energy tower is a combination of vertical wind axis turbine to obtain wind energy and solar panel to obtain solar energy. The tower is placed in between the divider and the automobile on the roadway, which, owing to its velocity, creates a significant amount of air. The solar panel is utilized for producing energy and is also mounted in a manner which deflects the air from the automobile to the turbine. To produce power, the generator and the gear systems are attached to the shaft of the wind turbines. So it is possible to get a portable solution to energy issues.

The original version of this article containes a mistake. In the second line of Comment 2, it should read: “It is necessary to note that Schwarzschild metric is static while the rotating metric (which is the subject of discussion) is stationary.”

This article deliberates the finite element formulation as applied to the conjugate heat transfer in a porous domain fixed in an annular geometry. The porous domain is such that a solid wall is attached to the iner surface of annulus. The article is aimed to discuss the application of finite element method to problem under investigation and elaborate the solution strategy as applied to porous annulus. The governing equations are taken in the form of non-dimensional equations. A simple triangular element is used to simulate the problem under investigation. The solution is presented in terms of convergence behavior of temperature and stream function. The convergence is faster at low Rayleigh numberThis article deliberates the finite element formulation as applied to the conjugate heat transfer in a porous domain fixed in an annular geometry. The porous domain is such that a solid wall is attached to the iner surface of annulus. The article is aimed to discuss the application of finite element method to problem under investigation and elaborate the solution strategy as applied to porous annulus. The governing equations are taken in the form of non-dimensional equations. A simple triangular element is used to simulate the problem under investigation. The solution is presented in terms of convergence behavior of temperature and stream function. The convergence is faster at low Rayleigh number

The tribological behavior of the different structural steels with carbon concentration ranging from 0.002 to 0.7% was evaluated through ball on disk wear testing method. Testing was carried out at three different loads, i.e., 30, 40, and 50 N to understand the wear behavior at different loading conditions. The wear resistance of the spheroidized high carbon steel (0.7%) is found to be lesser than that of steels containing pearlite in their microstructures, i.e., low carbon (0.19%) steel and medium carbon (0.32%) steel. Enhanced strain hardening of the pearlite structure was held responsible for the increased wear resistance. As expected if steel showed least wear resistance due to its softer ferrite content. The SEM images of the worn structures are correlated with the macroscopic wear resistance data.

Recycling has been the fascinating topic among the researchers for all times. The present study shows the recycling of steel plant's solid wastes as blast furnace flue dust and sludge towards agglomeration and their use in the production of sinter. These wastes consist of metal oxides and coke fines as a valuable material with some alkali oxides. Using these wastes as it is in the form of fines exacerbate the further processing. Pellets of these wastes are prepared with three types of binders as molasses, dextrin and bentonite. The result reveals that properties as compressive strength, shatter strength, are better in the case of bentonite binder having the productivity of the disc pelletizer machine as 75. After that, these macro pellets used for sintering with iron ore and other ingredients in pot type, down draft laboratory grade sintering machine, which shows very high productivity and good mechanical properties of the sinter as well. The microstructural analysis reveals the presence of re-oxidized hematite and a little bit of a magnetite phase with some slag phases, which confirmed later by XRD analysis. Results also show the decrease in coke rate, i.e. coke consumption to produce sinter and at the same time, this process is highly eco-friendly.

In the present scenario, the requirement for energy has been increasing in a distressing rate and the availability of the energy resources are not abundant for sustainable development and the need of the hour is to establish an economical pollution free inexhaustible energy resources to compensate the increasing demands. Since, walking is the most common activity in human day to day life, whenever a person walks he exhausts energy to the ground which goes as a waste. In order to preserve and make use of this energy we are converting it into electrical energy using piezoelectric effect. Piezoelectric effect is utilized by piezoelectric sensor producing output energy in the form of AC voltage. To produce energy in a large extent, in this model implementation of the piezoelectric sensor network along the footpath is carried out which is given to the lane of streetlights along with it the smart shoe is implemented for a small production that consists GPS tracking. In this proposed work model, GPS tracking has been added and also streetlights switching technique comparing with existing model.

Opposing flow arises when two forces are acting in opposite direction. The present work investigates the opposing flow mixed convection in an annulus having porous medium fixed within its boundaries. The equations are considered in non-dimensional form which is further treated with the help of finite element method to facilitate the solution of governing parameters. The heating of the inner surface is considered in 3 steps such as 20%, 35% and 50% of the annulus height at top section of inner radius. The results are presented with respect to Peclet number, thermal conductivity ratio and heater length, in terms of Nusselt number along the heated section.Opposing flow arises when two forces are acting in opposite direction. The present work investigates the opposing flow mixed convection in an annulus having porous medium fixed within its boundaries. The equations are considered in non-dimensional form which is further treated with the help of finite element method to facilitate the solution of governing parameters. The heating of the inner surface is considered in 3 steps such as 20%, 35% and 50% of the annulus height at top section of inner radius. The results are presented with respect to Peclet number, thermal conductivity ratio and heater length, in terms of Nusselt number along the heated section.

Opposing flow mixed convection occurs due to the fluid being forced to flow in opposing direction as that of rising fluid due to thermal buoyancy. This paper undertakes the investigation of heat transfer in an annular porous medium because of mixed convection opposing flow from top of the cylinder. The fluid velocity designated as Vo is applied from top of the cylinder in negative gravitational direction. The governing equations are converted into dimensional form having the Peclet number. The inner radius of the annulus is heated in three segments as 20%, 35% and 50% of the annulus height in such a way that the heater always coincides with the bottom of cylinder.Opposing flow mixed convection occurs due to the fluid being forced to flow in opposing direction as that of rising fluid due to thermal buoyancy. This paper undertakes the investigation of heat transfer in an annular porous medium because of mixed convection opposing flow from top of the cylinder. The fluid velocity designated as Vo is applied from top of the cylinder in negative gravitational direction. The governing equations are converted into dimensional form having the Peclet number. The inner radius of the annulus is heated in three segments as 20%, 35% and 50% of the annulus height in such a way that the heater always coincides with the bottom of cylinder.

This paper discusses the heat transfer characteristics of mixed convection in a porous medium for aiding flow. The aiding flow refers to a condition when the applied velocity and the buoyancy help each other making it a assisting flow. The annulus is subjected to discrete heating of 20%, 35% and 50% at bottom of the annulus being heated with hot temperature and whole of the outer surface being cooled to cooler temperature. The whole phenomenon of mixed convection is simulated with respect to above said heating condition by using finite element method as solution tool. The results are predominantly discussed with respect to the mixed convection parameter such as Peclet number.This paper discusses the heat transfer characteristics of mixed convection in a porous medium for aiding flow. The aiding flow refers to a condition when the applied velocity and the buoyancy help each other making it a assisting flow. The annulus is subjected to discrete heating of 20%, 35% and 50% at bottom of the annulus being heated with hot temperature and whole of the outer surface being cooled to cooler temperature. The whole phenomenon of mixed convection is simulated with respect to above said heating condition by using finite element method as solution tool. The results are predominantly discussed with respect to the mixed convection parameter such as Peclet number.

Base pressure is a crucial factor in evaluating flow parameters. The effect of the flow regulation mechanism is through an experiment examined for the convergent-divergent (C-D) nozzle with abrupt enlargement in an axisymmetric duct. The microjet control is extended along the nozzle's exit diameter at a 90-degree interval having a circular cross-section in the shape of an orifice of 0.5 mm radius. This research's primary aim is to evaluate the flow quality near the wall in the absence and presence of control. The experimental investigation aims to record the data for area ratio 6.25 of the flow field at the separate flow zone's rear end. At ninety degrees apart, four tiny jets are situated at 6.5 mm from the axis of the primary shear layer emanating from the nozzle. The small control jets attain critical conditions. The real Mach values for the main jets were 1.1 and 1.5, respectively, in the present study. The experiments were done at different expansions in the range from 11 to 3. The duct length was in the range of 10 to 1. This research primarily aims to study the quality of the duct's flow and its influence on the pressure and the pressure level along the duct. It is realized that the duct pressure is not harshly affected by the control jets in the pipe founded on the current findings.

The strain hardening behavior of five different steels of varying carbon content, ranging between 0.007 and 0.71%, such as an Interstitial free (IF), a microalloyed, and a low, medium and high carbon steels, have been critically examined using tensile loading. The test results for the IF and the microalloyed steels having only ferritic structure, exhibit a two-stage strain hardening behavior. On the other hand, the low, medium, and high carbon steels having a two-phase microstructure (ferrite-pearlite/cementite) exhibit three-stage strain hardening. A number of existing and frequently used empirical equations, such as the Hollomon, Ludwik, Ludwigson and Voce were used to explain the strain-hardening characteristics of these steels; however, none of the above could fully and satisfactorily explain the flow behavior especially at high strain region. In order to remedy this deficiency, a modification to Ludwigson equation has been suggested by the authors by introducing an extra exponential term to the existing Ludwigson equation. The modelled flow curves, on the basis of this proposed new equation, could explain the strain hardening behavior of these steels very satisfactorily over the entire strain range. In addition, the excellent matching of the flow curves, based on the proposed equation with the experimental flow curves of a number of metallic materials, as diverse as multiphase steel, TRIP-assisted steel, dual-phase steel, stainless steel (316L), Mg-alloy, Ti-alloy and a high entropy (Cantor) alloy, indicates its wider applicability.

Background: Neurocognitive decline and depression are the most common unaddressed but noticeable adverse consequences linked with obstructive sleep apnea (OSA) which can affect work performance, social functioning, and quality of life. It is significant to explore both cognition and mood disorders in OSA, as there is adequate evidence in the literature supporting the efficacy of continuous positive airway pressure (CPAP) in the management. Aims and Objectives: The aim was to assess the neurocognitive profile and depression in patients with OSA in our center. Patients and Methods: This was a cross-sectional observational study conducted in a tertiary care center between January 2017 and January 2018. A total of 92 patients with an established diagnosis of OSA (by polysomnography) were included in the study. All patients were given questionnaires for the assessment of neurocognitive function and depression scoring. Results: Out of 92 OSA patients, 29 (31.5%) had normal cognition, 43 (46.7%) had mild cognitive impairment (CI), and 20 (21.7%) had major CI. Out of twenty patients with major CI, major attention deficit was observed in 17 (85%), memory impairment in 16 (80%), verbal fluency was affected in 13 (65%), deficit in language skills was observed in 7 (35%), and visuospatial abilities were affected in 17 patients (85%). Out of 92 OSA patients, 21 (22.8%) had depression and 71.4% of them were females. Conclusions: OSA is an independent risk factor for both depression and neurocognitive decline. It is highly recommended that patients with OSA should be screened for both, so as to provide better clinical outcomes.

Background and Aims: Simulation is one of the important learning tools when it comes to skill acquisition and as a supplemental tool for training in high stake situations like COVID-19. The aim of this study is to meet the global requirements of knowledge on ventilatory management, prepare and to evaluate the effectiveness of the teaching module for non-anesthesiology trainees on COVID-19 patients. Methods: Quasi experimental cross sectional pilot study was conducted with a sample of twenty-six trainees. A teaching module was prepared and validated which consisted of lectures, audio-video sessions, demonstrations with hands-on training, debriefing, analytical-phase and reflection. Pre and Post evaluations from student t-test and direct observation of procedural skills (DOPS) were used for knowledge and skill assessment respectively and feedback obtained from Likert's score. Results: Pre- and Post-tests had a mean score of 7.42 ± 2.12 and 14.92 ± 2.9 respectively (P value 0.00001). DOPS included 16 point score, in which 23 trainees (88.4%) met the expectations and above expectations as per training objectives. A five-point Likert's score feedback revealed satisfactory and highly satisfactory scores of 100% (ABG), 96.1% (mechanical ventilation), and 84.6% (ventilation in COVID-19 patients). Overall satisfaction for the workshop among respondents was 100 per cent. Confidences of handling scores were 84.5% (interpreting ABG), 65.3% (maneuvering mechanical ventilation), and 96.15% (intubation in COVID-19 patients). Conclusion: A planned teaching module in ventilation management helps to train non-anaesthesiologists more effectively as a part of COVID-19 preparedness. Simulation with debriefing based training to the medical fraternity is the best alternative in the present pandemic and it will also ensure the safety of health care professionals.

Three different antennas such as corner cut inset-fed dual-band slot, inset-fed dual-band slot and inset-fed microstrip antennas are presented. These antennas will find applications in Bluetooth/WLAN, Personal Communications service (PCS) and Global System for Mobile Communication (GSM). The antenna simulations are carried using HFSS. The inset-fed antenna is proposed to operate in frequency range of 2.35GHz to 2.42GHz, which finds application in WLAN. The proposed inset-fed dual-band slot antenna is considered among 1.6GHz to 1.64GHz and 2.38GHz to 2.43GHz. By modulating the proper position of slot, the corner cut inset-fed dual-band slot antenna is proposed to operate among the frequency range for lower band as 1.74GHz to 1.78GHz and 1.92GHz to 1.97GHz and for upper band as 2.38GHz to 2.43GHz. The experiment is also carried out for inset-fed microstrip antenna. A comparison among simulation and measured results are presented in this paper.

International audience; Towns are characterized by a strong intern dynamic, a very high spatial heterogeneity of their elements, their 3D geometric shapes (horizontal and vertical) inducing shadows, and their large variety of materials. These characteristics make the collection of information of land surface properties and urban descriptors more delicate. Due to the enhancement of spatial resolution capacities,[virgule] multispectral imagery can provide a wide range of information to deepen the observation of urban areas. Nevertheless, such a type of sensors would not contribute to the characterization of the urban land surface properties (chemical composition of materials, species of vegetation, quality of soils, etc.). Hyperspectral imagery capacities might be considered as providing useful products by themselves and show great potentials but it becomes mandatory to define which type of information can be delivered by these different sensors. The ANR HYEP project 1 has the purpose to demonstrate the benefit of a second generation of hyperspectral space borne mission characterized by a high spatial resolution (8m GSD) and a high temporal revisit. After a detailed description of the motivation of such a proposal, applications are given focused on urban vegetation, sealed and impervious areas, solar panel area estimation.