Numerical Simulation and Modeling of Solar Power Plant Performance Assessment Under Variable Parametr Condition

The performance and economy of a solar photovoltaic system depends on location and geographic parameters. Predicting energy efficiency is important for effective planning and evaluation rates. The proposed study explores the performance evaluation of three interconnected geographically connected photovoltaic solar systems. In Jaipur, Kolkata and Chennai have been testing a 1 MW solar PV system for a year. Simulations were performed using PV Syst (a software tool developed by the University of Geneva) and hourly weather data was obtained from NASA and METEONORM. The loss map for energy production and calculations shows the significant impact of geography on the performance and economics of solar PV systems. The monthly performance of the system indicates the impact of changes in weather parameters on radiation and ambient temperature performance and energy system performance. In order to optimize system performance, the annual power generation per unit of electricity at different locations was compared and discussed

Quad Tree: New Approach of Representing and Traversing

As we know the computers are widely used in every field either it is of geography, medical, pharmacy, astrology. Astronomy and so on. The ongoing advancements in all these fields require a big database and the place from where this data is retrieved easily to use. The data is some time is in hierarchal format. But the array of memory that we use to save information is in only in 2-D, we have trees for such information in data structure. Q- Tree or Quad tree one of the ways of representing data in the memory. The problem is of representing data in this tree so that one can do searching, insertion and deletion in a fastest manner. With the increase in traversing and searching the performance of the computer too increases. DOI: 10.17762/ijritcc2321-8169.15051

Decoherence puzzle in measurements of photons originating from electron–positron annihilation

The entanglement of photons originating from electron–positron annihilation has not been experimentally proven. owever, the independent experiments performed so far unanimously confirm that the correlation between the linear polarizations of back-to-back photons from electron–positron annihilation is consistent with the assumption that these photons are entangled in the polarization. Yet, unexpectedly, recent experiments differ as regards the correlation of polarization direction of back-to-back photons after the decoherence induced by the scattering of one of these photons on the electron in the scattering material. In one of the experiments, the correlation before and after the decoherence of the photon state is the same, and in the other experiment, the scattering of one photon leads to a significant decrease in this correlation. Here we discuss this puzzle. Decoherent states were ensured provided by forcing one of the annihilation photons to scatter earlier before measuring the polarization correlation based on Compton kinematics. The comparison is made between the experimental setups used for the different measurements, and the results obtained are briefly discussed, highlighting the parameters that are important in performing such measurements. Finally, the main features of the J-PET detector are presented, along with the schemes for performing similar studies, so that the conclusive results can be used as remarks to solve the puzzle in question. Solving the decoherence puzzle will have crucial consequences for basic studies of entanglement, as well as for the proposed application of the photon polarization in positron emission tomography. If the correlation of the polarization of back-to-back photons from the electron–positron annihilation is the same before and after the scattering of these photons, then it will not be useful for the reduction of scatter fraction in positron emission tomography diagnostics

Seasonal variations in proximate composition and metallic elements of three cyprinids from a Central Himalayan river Alaknanda in Garhwal Himalaya, India

Fish is an irreplaceable, highly nutritious aquatic food in a balanced diet. On the contrary, fish can also be a source of metal contamination when ingested in excess through food and water. The aim of the present study was to determine the seasonal variations in the proximate body composition and levels of Na, K, Ca, Fe, Zn, Cu, and Pb in the muscle tissue of three fish species namely, Schizothorax plagiostomus, Schizothorax progastus and Barilius bendelisis dwelling in Central Himalayan river Alaknanda at Srinagar (Garhwal)  in Garhwal Himalaya. The protein (21.01-21.74%) and carbohydrates (2.31-2.69%) were found maximum in summer season in all the studied fishes while lipid was found to be highest during monsoon season in S. plagiostomus (2.73%) and S. progastus (2.70%) and lowest (1.62-1.68%) in the winter season. B. bendelisis showed a different pattern of variation in lipid content being highest (6.32%) during summer and lowest (3.34%) in monsoon season. Significantly (F=5.69, p<0.04) high content of lipid was found in B. bendelisis as compared to S. plagiostomus and S. progastus during the three seasons. Na, Ca, K, and Fe were detected highest during monsoon, Pb, and Cu during summer and Zn during the winter season. However, Pb was not detected in all the fish samples during monsoon season. B. bendelisis was significantly (p<0.001)rich in Na and Ca, S. plagiostomus in K (p<0.01), and S. progastus in Fe (p<0.001) content during all three seasons. Ca was rich among macroelements while Fe among microelements in all the studied fishes. The amount of Zn (1.48-4.55 mg/100g), Cu (0.429-0.869 mg/100g), and Pb (0.117-0.447 mg/100g) were within the permissible limits of International food safety guidelines. The seasonal variations in the parameters are attributed to food availability, temperature changes, fish metabolism, and prevailing environmental conditions. Thus, these cyprinid species were regarded as safe and useful for human consumption