Analysis and Mitigation of Impacts of Plug-In Electric Vehicles on Distribution System During Faults

With rising concerns for environment, energy security and gasoline prices, penetration of plug-in electric vehicles (PEV) is bound to increase in the distribution system. The load characteristics of the distribution system with PEVs will be considerably different and hence its effects on the system needs to evaluated. Determination of the characteristics of the impacts will help utilities to prepare methodologies in advance to accommodate this new kind of load. Batteries of most of these vehicles will be charged using a single phase power electronic chargers. To study impact of these chargers on distribution system during fault and fault recovery is the focus of this thesis. The IEEE 13 node test feeder and a single phase Level-2 battery charging system with current controlled and voltage controlled Voltage Source Converter (VSC) is modeled in PSCAD/EMTDC. A car park, with sixteen PEVs, each rated for 6.6 kW, is connected on each of the three phases, at one of the buses in the system. Temporary single line to ground fault (SLG) with auto-reclosure operation is simulated at the bus where the vehicles are connected. The response of the systems in terms of active and reactive power flows, voltage and current magnitudes is evaluated. Based on the observations, the charger is equipped with fault control logic and fault studies are repeated to gage its effectiveness

Reflection: Reducing long-term mortality in suicidal adolescents

A transformative method to reducing mortality in suicidal adolescents involves a novel approach of educating and empowering their loved ones

Insight into the Sealing Capacity of Mudrocks determined using a Digital Rock Physics Workflow

Primary objective: To better understand seal capacity in mudrocks and to determine the conditions under which a mudrock seal fails by allowing a non-wetting fluid to percolate. Hypothesis: Mudrock seals can fail below the fracture pressure if there exists a percolating pathway formed due to a continuous and sufficiently large pore-throat system. Procedure: We used SEM images of uncemented muds obtained at various depths (< 1.1 km burial) in the Kumano Basin offshore Japan for the study. Image mosaics were filtered and segmented using conventional and machine-learning techniques to identify the pore space, silt, and clay grains. We applied a 3D stochastic technique for pore space reconstruction from the SEM images and simulated capillary drainage in the resulting 3D volumes by the lattice Boltzmann method (LBM) using Stampede 2. Conclusion: Results showed that porosity and permeability decreased with depth, and capillary threshold pressure values increased. However, increasing silt content at a particular depth counteracted this behavior, due to better preservation of larger pores and throats.Texas Advanced Computing Center (TACC

Root-knot nematode (Meloidogyne incognita) and its management: a review

Root-knot nematode (RKN) Meloidogyne incognita stands out among the most harmful polyphagous endoparasite causing serious harm to plants, and distributed all over the globe. RKN causes reduced growth, quality and yield along with reduced resistance of the host against biotic and abiotic stresses. Infective second stage juvenile enters host roots with the help of the stylet and becomes sedentary getting into the vascular cylinder. Dramatic changes occur in host cells, making a specialized feeding site, induced by the secretion of effector protein by RKN. M. incognita can be controlled by nematicides, biocontrol agents, botanicals essential oils and growing resistant cultivars. Nematicides are no longer allowed to use in many parts of the world because of environmental hazards and toxicity to humans and other organisms. Researchers are concentrating on searching suitable alternatives to nematicides for effective management of M. incognita. This review mainly tries to explain the biology of M. incognita and different management options recommended in recent years. However, an effective and economical management of M. incognita remains an immense challenge

The tale of King Suratha and its literary reception: texts and translations from the Surathotsava and the Durgāvilāsa

This article is a companion piece to 'Licence and Faithfulness: Taking liberties with kathā in classical Sanskrit poetry and aesthetics' (Journal of Indological Studies, Kyoto University, Nos. 26-27 (2014-2015). It contains the texts and the first English translations of the tale of King Suratha from two mahākāvyas, the Surathotsava by Someśvaradeva and the Durgāvilāsa by Rāmakṛṣṇa. A full literary and historical analysis of these texts and their illumination of the issue of poetic licence and its implicitly free, creative and subversive nature is to be found in the other article. The Surathotsva and the Durgāvilāsa together exemplify the literary heritage of the Devīmāhātmya a Purāṇic work treated as scripture containing the archetype of the Suratha story. The tale of the king contained in these mahākāvyas diverges in many ways from the scriptural source, but most prominently in a new emphasis on Suratha as nāyaka, the swashbuckling hero whose exploits showcase heroic prowess, adventure, daring and kingly glory. In these stories we see Suratha tempted by gorgeous women, create cities out of magic and preside over spectacular courts as Dharma personified

CUSTOMER COST - SECOND IMPORTANT FACTOR FOR IMAGE GAP ANALYSIS OF LIFE INSURANCE SERVICES - BASED ON THE DATA COLLECTION FROM GUWAHATI

The concept of Customer Cost was developed by Lauterborn (1990) while developing the customer oriented Marketing Mix- the 4C concept. 4C model replaces the earlier 4Ps of Marketing Mix, here the focus is on customer and the current chapter is all about the second C of this model i.e. Customer Cost or Price in earlier 4P model. The Customer Cost concept is based on the fact that customers are more concerned with the total cost of acquiring a solution of their problem (Product or Service) rather than the price being charged for the Solution (Product or Service) offered by the Company (Moller, 2006), Customer Cost is a assumed to be a better approach as customers are interested in it. price is the quantity of payment or compensation given by one party to another in return for goods or services. In modern economies, prices are generally expressed in units of some form of currency. (For commodities, they are expressed as currency per unit weight of the commodity, e.g. Rs. per kilogram). Although prices could be quoted as quantities of other goods or services this sort of barter exchange is rarely seen. Prices are sometimes quoted in terms of vouchers such as trading stamps and air miles. In some circumstances, cigarettes have been used as currency, for example in prisons, in times of hyperinflation, and in some places during World War 2. In a black market economy, barter is also relatively common. In many financial transactions, it is customary to quote prices in other ways. The most obvious example is in pricing a loan, when the cost will be expressed as the percentage rate of interest. The total amount of interest payable depends upon credit risk, the loan amount and the period of the loan. Other examples can be found in pricing financial derivatives and other financial assets. For instance the price of inflation-linked government securities in several countries is quoted as the actual price divided by a factor representing inflation since the security was issued. Price sometimes refers to the quantity of payment requested by a seller of goods or services, rather than the eventual payment amount. This requested amount is often called the asking price or selling price, while the actual payment may be called the transaction price or traded price. Likewise, the bid price or buying price is the quantity of payment offered by a buyer of goods or services, although this meaning is more common in asset or financial markets than in consumer markets. Price refers to the amount charged for a product or service (Kotler, 2007), from producer’s point of view Price generates revenue (Kotler, 2003)

A Practical Catalyst-Free Synthesis of 6-Amino-4 Alkyl/Aryl-3-methyl-2,4-dihydropyrano[2,3- c

A completely green and improved method for the synthesis of 6-amino-4-aryl-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-carbonitriles by a four-component reaction of a mixture of ethyl acetoacetate, hydrazine hydrate, aldehyde, and malononitrile in boiling water is reported. Similar synthesis starting from aliphatic aldehydes was carried out in water: ethanol (1 : 1) at reflux temperature without using any catalyst

Neural network assisted quantum state and process tomography using limited data sets

In this study we employ a feed-forward artificial neural network (FFNN) architecture to perform tomography of quantum states and processes obtained from noisy experimental data. To evaluate the performance of the FFNN, we use a heavily reduced data set and show that the density and process matrices of unknown quantum states and processes can be reconstructed with high fidelity. We use the FFNN model to tomograph 100 two-qubit and 128 three-qubit states which were experimentally generated on a nuclear magnetic resonance (NMR) quantum processor. The FFNN model is further used to characterize different quantum processes including two-qubit entangling gates, a shaped pulsed field gradient, intrinsic decoherence processes present in an NMR system, and various two-qubit noise channels (correlated bit flip, correlated phase flip and a combined bit and phase flip). The results obtained via the FFNN model are compared with standard quantum state and process tomography methods and the computed fidelities demonstrates that for all cases, the FFNN model outperforms the standard methods for tomography.Comment: 9 pages, 8 figure