Volume 10 | Issue 5 |

 Abstract

This paper presents a method to operate a grid connected hybrid system. The hybrid system composed of a Photovoltaic (PV) array and a Proton exchange membrane fuel cell (PEMFC) is considered. Two operation modes, the unit-power control (UPC) mode and the feeder-flow control (FFC) mode, can be applied to the hybrid system. In the UPC mode, variations of load demand are compensated by the main grid because the hybrid source output is regulated to reference power. Renewable energy is currently widely used. One of these resources is solar energy. The photovoltaic (PV) array normally uses a maximum power point tracking (MPPT) technique to continuously deliver the highest power to the load when there are variations in irradiation and temperature. The disadvantage of PV energy is that the PV output power depends on weather conditions and cell temperature, making it an uncontrollable source. Furthermore, it is not available during the night. In order to overcome these inherent drawbacks, alternative sources, such as PEMFC, should be installed in the hybrid system. By changing the FC output power, the hybrid source output becomes controllable. Therefore, the reference value of the hybrid source output must be determined. In the FFC mode, the feeder flow is regulated to a constant, the extra load demand is picked up by the hybrid source, and, hence, the feeder reference power must be known. He system can maximize the generated power when load is heavy and minimizes the load shedding area. When load is light, the UPC mode is selected and, thus, the hybrid source works more stably. The changes in operating mode only occur when the load demand is at the boundary of mode change; otherwise, the operating mode is either UPC mode or FFC mode. Besides, the variation of hybrid source reference power is eliminated by means of hysteresis. The proposed operating strategy with a flexible operation mode change always operates the PV array at maximum output power and the PEMFC in its high efficiency performance band, thus improving the performance of system operation, enhancing system stability, and decreasing the number of operating mode changes.

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Creative Commons Attribution 4.0 and The Open Definition

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Flaxseed seeds, Oil, Fatty Acids, Tribes, Traditional Uses, Jashpur District.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Solar power plants need to be monitored for optimum power output. This helps retrieve efficient power output from power plants while monitoring for faulty solar panels, connections, and dust accumulated on panels lowering output and other such issues affecting solar performance. So here we propose an automated IoT based solar power monitoring system that allows for automated solar power monitoring from anywhere over the internet. We use arduino based system to monitor a 10Watt solar panel parameters. Our system constantly monitors the solar panel and transmits the power output to IoT system over the internet. Here we use IoT Gecko to transmit solar power parameters over the internet to IoT Gecko server. It now displays these parameters to the user using an effective GUI and also alerts user when the output falls below specific limits. This makes remotely monitoring of solar plants very easy and ensure best power output.

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SMART PLANETARY ENERGY MANAGING SYSTEM BUILT ON CLIMATE FACTS USING IoT

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Online learning Self-efficacy, Academic stress, Engineering students

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Primary cardiac lymphoma is a rare pathology, representing 1% of primary cardiac tumors. It often involves the right heart and preferentially the atria to the ventricles. Through our observation, we propose to remind a complication although exceptional which can reveal the primary cardiac lymphoma that is the auriculo ventricular block.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Lymphoma, Complete atrioventricular block, pericardial effusion

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

We introduce an effective technique to enhance the images captured underwater and degraded due to the medium scattering and absorption. Our method is a single image approach that does not require specialized hardware or knowledge about the underwater conditions or scene structure. It builds on the blending of two images that are directly derived from a color-compensated and white-balanced version of the original degraded image. The two images to fusion, as well as their associated weight maps, are defined to promote the transfer of edges and color contrast to the output image. To avoid that the sharp weight map transitions create artifacts in the low frequency components of the reconstructed image, we also adapt a multiscale fusion strategy. Our extensive qualitative and quantitative evaluation reveals that our enhanced images and videos are characterized by better exposedness of the dark regions, improved global contrast, and edges sharpness. Our validation also proves that our algorithm is reasonably independent of the camera settings, and improves the accuracy of several image processing applications, such as image segmentation and keypoint matching.

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Creative Commons Attribution 4.0 and The Open Definition

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Underwater image enhancement, Image fusion, White balance, Saliency map

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Cissus quadrangularis, antioxidant, anti-inflammatry, flavonoids, TLC, haemolysis

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Traffic Sign Recognition, Convolutional Neural Network, You Only Look Once.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Because of the miserable security of sensors focus focuses, it is ordinarily expected that a foe can catch and think about little degree of sensors inside the affiliation. In a middle point replication assault, an adversary can take gain of the capacities of a compromised focus to bring expansions of that middle point into the neighborhood inconspicuously. Without a compelling and green affirmation part, those copies might be utilized to convey a spread of assaults that subvert different sensor undertakings and shows. This white paper introduces a single assigned framework called localized multicast for detecting focus replication attacks. The show and security of our framework are assessed both hypothetically and through entertainment. That is the very thing our outcomes show, strangely, With beyond special strategies proposed through utilising Parno et al., Localized Multicast is more prominent green to the degree that correspondence and memory costs in gigantic augmentation sensors affiliations, and on a near time accomplishes an unmatched opportunity seeing focus point expansions.

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Creative Commons Attribution 4.0 and The Open Definition

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Visual Studio, .NET, Multicast Algorithm, Red Protocol.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Floating column, Earthquake, L shape building, G+15 storey, ETABS software, Response spectrum

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Creative Commons Attribution 4.0 and The Open Definition