Certain Investigation of Real power flow control of Artificial Neural Network based Matrix converter-Unified Power Flow Controller in IEEE 14 Bus system

The power consumption is rapid increased due to ASD (Adjustable Speed Drives) and automation in industries and large consumption of electricity in domestic regions increased the concern of the power quality. The quality of the power received in the Distribution system is altered because of the losses in the transmission system. The losses in the transmission system is mitigated using the FACTS (Flexible AC Transmission System)controller among these controllers UPFC (Unified Power Flow Controller) plays a vital role in controlling the shunt and series reactive powers in the bus of the power system. The conventional topology of the UPFC consists of AC-DC converter and energy stored in the DC link and DC-AC converter injected a voltage in series to the bus which as to be controlled. Whereas a new topology based on matrix converter can replace the dual converters and perform the required task. The construction of 2-bus, 7-bus and IEEE-14-bus power system is designed and modeled. MC-UPFC (Matrix Converter Based Unified Power Flow Controller) is designed and constructed. The MC-UPFC is the rich topology in the FACTS which is capable of controlling both the transmission parameters simultaneously with the switching technique of Direct power control by the smooth sliding control which gives less ripple in the injecting control parameters such as control voltage [Vc] and voltage angle [α]. By implementing MC-UPFC the real and reactive power can be controlled simultaneously and independently. The control techniques were designed based on the Proportional Integral derivative(PID) with sliding surface power control, FLC (Fuzzy Logic Controller) and ANN (Artificial Neural Network)  and  the performance of  Vc and α of the controllers are investigated. Hence the sliding surface and relevant control switching state of the MC can be controlled by the FLC which gives the robust and autonomous decision making in the selection of the appropriate switching state for the effective real power control in the power system. The work has been carried out in the MATLAB Simulink simulator which gives the finest controlling features and simple design procedures and monitoring of the output

Promoting Informal Reasoning Skills And Understanding Of Interaction Among Living Things Through Socio-Scientific (Ssi) Based Activities

Penyelidikan ini bertujuan untuk mengkaji keberkesanan mengintegrasikan aktiviti berasaskan isu – isu sosio-saintifik (SSI) dalam kurikulum sains rendah untuk meningkatkan kemahiran menaakul secara bukan formal dan kefahaman tentang interaksi antara benda hidup. This study was aimed to investigate the effectiveness of integrating socioscientific based activities into primary science curriculum in promoting informal reasoning skills and understanding of interaction among living things

Antimicrobial Activity of Marine Bacteria Isolated from the Mangalore Coast, West Coast of India

Antibacterial substances from sea sediment were isolated from marine environment of Mangalore, west coast of India and characterized. Out of the 21 isolates subjected to secondary screening, 10 isolates were active against Bacillus subtilis, 12 against Staphylococcus aureus, 6 against Escherichia coli, 3 against Proteus vulgaris and 4 against Salmonella typhi. Metabolites in the extract of broth of overnight grown Pseudomonas spp.  No.MN05 proved to have antimicrobial activity

Potent antimicrobial activity of Rhizophora mucronata

The antimicrobial activity of n-hexane, chloroform and methanol extracts of leaves and roots of the plant Rhizophora mucronata were studied. Ampicillin and clotrimazole were used as standard antibacterial and antifungal agents respectively. The result of the study revealed that the n-hexane extract and chloroform extract of leaves exhibited strong inhibitory action against Bacillus subtilis, Staphylococcus aureus, Candida albicans, Aspergillus fumigatus and Aspergillus niger and moderate inhibitory action against Pseudomonas aeruginosa and Proteus vulgaris. The rest of the extracts showed good inhibitory activity

DESIGN AND FABIRCATION OF HYBRID TWO WHEELER

The progress of automobiles for transportation has been intimately associated with the progress of civilization. The automobile of today is the result of the accumulation of many years of pioneering research development. In the modern trend automobiles have certain disadvantages soon as fuel cost relative to mileage, pollution and less efficiency.To improve efficiencyTo decrease the fuel cost relative to mileageTo control the pollution is to be effectThen our “HYBRID TWO WHEELER†is an aspect. The goal of this project was to implement the most efficient and less polluting vehicle. In our project the hybrid electric vehicle model combines the internal combustion engine of a conventional vehicle with the battery and electric motor of an electric vehicle, resulting in twice the fuel economy of conventional vehicle. We implement this hybrid electric vehicle concept for two wheeler

Faulty antenna detection in a linear array using simulated annealing optimization

Sonar, radar and communication systems solely depend on antenna arrays for signal attainment. These arrays are capable of producing directional signals which can be steered in a certain direction. Faulty elements in an array will result in distorted radiation pattern with increased sidelobe levels.  Far-field faulty antenna detection is necessary due to the near field repairing at complex systems like spacecraft. This paper proposes simulated annealing (SA) optimizing method to find the faulty element’s location in a linear array. In this study, a Chebyshev array is presented with the SA optimization method to detect faulty element location with a random permutation of failure locations tested. This method can successfully detect faulty antenna in a linear array. Even though, this method is developed for linear array it can easily be adapted to a planar array

RF energy harvesting prototype operating on multiple frequency bands with advanced power management

Radio Frequency (RF) harvesting seems to be catching up as an alternate energy source whereby RF energy is scavenged from ambient sources and converted into renewable energy in terms of DC power. This converted DC power is then utilized to power up devices that require a low start up power in which eliminates the need for battery replacement. In this paper, a novel RF energy harvesting prototype is presented which consists of two microstrip patch antennas operating on GSM (900MHz) and WIFI (2.4GHz) & WiMAX (2.3GHz) frequency bands with a bandwidth of 220MHz and 10.11MHz respectively to harvest RF signals from ambience. Two matching networks are presented as well to ensure efficient power transfer to load. Rectifiers are designed to transform the RF signals to DC power. The converted DC signals are then combined and fed to a power management circuit which charges a 4.2V NiMh battery and drives a load at a regulated output of 3V

EQUALIZING ASYMMETRY DELAY FOR ALIGNING SIGNALS ON AIR INTERFACE IN 5G/LTE-A XHAUL/FRONTHAUL C-RAN NETWORK

The stringent performance criteria that are required in a, for example, Third Generation Partnership Project (3GPP) Fifth Generation (5G) fronthaul network raise a number of challenges. To address those types of challenges, techniques are presented herein that support, among other things, removing path asymmetry at a service layer to align the signal at an air interface in 3GPP Fourth Generation (4G) or 5G converged wireless and optical transport (often referred to as \u27XHaul\u27), fronthaul, or centralized radio access network (C-RAN) use cases; thus, equalizing the delay between an uplink and a downlink direction. Aspects of the techniques presented herein encompass, among other things, a custom extension header in a Radio over Ethernet (RoE) packet to support the conveyance of timestamps, the dynamic configuration of a re-timer buffer depth, etc. Additionally, aspects of the techniques presented herein may be leveraged for other transport applications where, for example, an application over a transport network expects a symmetric delay as a wider scope

A study on clinical profile, management and outcome in pediatric patients admitted with scorpion envenomation

Background: Scorpion envenomation is a common medical emergency. The main aim is to study clinical profile, management and outcome.Methods: Prospective observational study of Scorpion envenomation cases for six months. case sheets were analysed for clinical profile, symptoms, complications, management and outcome.Results: During the study period first 50 cases were admitted and treated for the following results 66% were males and 34% were females, 46% were upper extremity and 54% were lower extremity. common clinical symptoms are pain at site, autonomic storm, palpitation, headaches, abdominal pain, altered sensorium, vomiting. 40% of patients received prazosin with 1-2 hrs. the major complications were myocarditis, encephalopathy, Peripheral circulatory failure & congestive cardiac failure. There was no mortality in this study.Conclusions: The study finding shows that early and effective use of prazosin treatment showed good outcome in patients. Less complications were seen in patients those who received the first aid. This study concludes that majority of patient were exposed to complication due to shortfall in education, awareness and pre-hospitalization. We, as a clinical pharmacist, tried to create awareness and provide education to health care workers in all primary health care center through distributing pamphlets to general public in and around hospital