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The productions of the thin metallic chalcogenide films are of particular interest for the wide range of fabrication of the solar cells, sensors, photodiode arrays, photoconductors. Raman spectroscopy is used to measure the scattering radiation of a matter. Basically, the spectroscopic methods can be defined as the study of the interaction of electromagnetic radiation with a matter. It can be based on the phenomenon of absorption, fluorescence, emission or scattering. The observation of peaks supported the formation of amorphous or crystalline nature of the samples. In this short review, the authors had gathered some informations about the Raman studies of recently synthesized metal chalcogenide semiconductor thin films.

A DESCRIPTION OF Co 11015 (ATULYA) A RECENTLY NOTIFIED SUGARCANE VARIETY FOR TAMIL NADU

Due to the reasons such as the rapid growth and spread of network services, mobile devices, and online users on the Internet leading to a remarkable increase in the amount of data. Almost each trade is making an attempt to address this large information. Big data phenomenon has begun to gain importance. However, it’s not solely terribly tough to store massive information and analyses them with ancient applications, however conjointly it’s difficult privacy and security issues. For this reason, this paper discusses the massive information, its scheme, considerations on massive information and presents comparative read of massive information privacy and security approaches in literature in terms of infrastructure, application, and data. By grouping these applications associate overall perspective of security and privacy problems in massive information is usually recommended

A Single Ended Primary Inductor Converter (SEPIC) is a DC to DC converter that provides output which is lesser than or greater than its input. However this two level SEPIC suffers from higher switching stress due to which the switching losses increase. Because of this increase in switching loss, the efficiency of the power converter decreases. To overcome this disadvantage, this paper proposes a three level SEPIC which has reduced switching losses. Three level SEPIC improves the power efficiency by using a lower rated switch. A control strategy is described to balance the capacitor voltage so that the damage to the power switch is prevented. Inductor current ripple in the output inductor is also reduced in the proposed converter. Hybrid Wind-Solar energy system is given as a source to the three level SEPIC. Simulation results of both two level and three level SEPIC are discussed to highlight the advantages of proposed converter.

This paper solves the problem of the requirement of energy. An idea has been portrait keeping in mind the situations when there might be some issues with renewable energies. Taking in account the application of solar panel, battery and grid the energy transmit from solar to vehicle and vehicle to home using bidirectional converter is being designed. The basic concept of our paper is to transfer the electrical power from vehicle to grid and grid to vehicle with the help of a dc-dc bidirectional converter which is connected to a three-phase inverter in order to meet the grid’s energy. The purpose of the three-phase inverter is to yield the ac source for the home appliances and emergency power use. With the help of the bidirectional dc-dc converter the battery is charged and the energy is stored within the EVs. The path that allows the flow of electric current from scooter to power lines is known as vehicle to grid. Now in case of an emergency situation when solar power is not sufficient to charge the vehicle the path is reversed and power is taken from the grid to recharge the battery and is termed as grid to vehicle. This situation occurs when the inverter output voltage is higher than the voltage in the battery, then the supply is taken from the grid. A bridge rectifier is also there as an additional power supply if needed.

Twenty elite sugarcane Co canes were tested in mutlilocation trials at 10 locations of Tamil Nadu under Institute-Industry collaborative programme. These genotypes were evaluated under randomized block design with three replications; yield and quality contributing parameters were recorded at 240, 300 and 360 days after planting. Analysis revealed the superiority of Co 13001 for early sucrose accumulation potential at 240 days and Co 14016 for good ratoonability potential with high cane yield through increased millable cane population.

Background/Objectives: In this paper, high voltage gain for a dc-dc converter is achieved by keeping duty cycle fixed. Methods/Statistical analysis: Here converter achieves the high voltage gain by keeping duty cycle fixed and simulation work is carried out in Matlab/Simulink environment. Findings: By using high frequency transformer and by using passive clamp networks such as diodes and capacitors high voltage gain for a dc-dc converter is achieved. Applications: It can be used in any low voltage source application such as PV, fuel cell etc.

Saccharum spontaneum L., one of the wild species in Saccharum complex has reservoir of genes for various economically important traits including resistance to biotic and abiotic stresses. Its contribution in the development of modern sugarcane varieties through nobilization has resulted in the first sugar revolution in the country. In India, many explorations were conducted by Sugarcane Breeding Institute, Coimbatore and several valuable germplasm were collected and maintained for further utilization. The arid and semi arid zones of northwestern India are the unexplored regions of the country and collections from these zones would be valuable in terms of tolerance to abiotic stresses. An exploration was conducted in the six agro climatic zones of northwestern India in the state of Gujarat. A total of 32 collections were made and detailed information on passport data and various important descriptors were documented. These clones were planted and characterized for ten quantitative and 26 qualitative traits. The collections showed the existence of high variability for most of the traits. Clustering based on phenotypic data grouped whole collections into six clusters. Clones from high rainfall south Gujarat (Cluster II) and low rainfall western arid (Cluster III) and north Gujarat (Cluster IV) were grouped into separate clusters. This paper describes the potential uses of the S. spontaneum collected in northwestern India and further utilization in sugarcane improvement programmes.

A diallel set of 11 pearl millet genotypes was made to evaluate General Combining Ability (GCA) effects of parents and Specific Combining Ability (SCA) effects of cross combinations. The analysis of variance of diallel progenies exhibited significant genotypic differences. Different analyses, i.e., combining ability analysis and genetic component analysis, showed that both additive and non additive gene effect were significant. Four parents had negative GCA estimates. Crosses with low SCA effects were also identified and their further use in breeding programme has been suggested.

This paper demonstrates various PFC Boost Converters. In general PFC Boost converters are used to increase the output voltage. This paper compares Pseudo Totem pole Bridgeless PFC Boost converter, Totem pole Bridgeless PFC Boost converter and ZVS Interleaved PFC Boost converter. Simulation result shows that Power Factor of the various PFC Boost converters are nearer to Unity. By using these PFC Boost converters voltage drop get reduced.

This work proposes a non- isolated high voltage gain DC-DC converter based on three state switching cell and voltage multiplier cell. The no of multiplier cell to be implemented in this proposed circuit is 5.The value of the voltage gain obtained can be varied by changing the no of multiplier cells & duty cycle. Non - isolated DC-DC converter based on 3SSC and 3VMC is simulated which precedes the simulation of 3SSC and 5VMC. The simulation is carried out using MATLAB software. The behaviour of the converter is analysed through an extensive theoretical analysis. The analysed converter can be applied in UPS, fuel cell systems, and is also adequate to operate as a high gain boost stage with cascaded inverters in renewable energy systems.

In this paper, an attempt was made with steel tubular columns in-filled with recycled aggregate concrete instead of normal conventional concrete so as to utilize the construction and demolition debris for effective recycling in construction works. The behaviour of circular and square concrete-filled steel tubular sections (CFSTs) with partial replacement of coarse aggregate by recycled aggregates under axial load is presented. The effects of steel tube dimensions, shapes and the confinement of concrete are examined. Measured column strengths are compared with the values predicted by Eurocode 4, Australian Standards and American Codes. 12 specimens were tested with strength of concrete as 20 MPa and D/t ratio 18.5, 25.3 & 36.0. The columns were 76 & 89 mm in diameter and 72 & 91 mm in square are 350 & 900 mm in length. All three codes predicted lower values than that of measured during the experiments. Eurocode 4 gives the best estimation for both conventional and recycled aggregate concrete. From the results it was noted that square columns saving 30 % of steel when compare to circular columns. Also it was observed that the load carrying capacity of steel tubular columns in-filled with recycled aggregate concrete is higher than that of conventional concrete and it saves 10 % cost of concrete. Hence this research would give a solution for effective solid waste management as well as cost effective.

Diagnosing the faults in an induction motor drive has always been a challenging task for the engineers in recent industrial applications. Usually current monitoring techniques are applied to detect various types of induction motor faults. Park’s vectors derived from the stator currents are used for diagnosing faults between the three phase voltage source inverter and the induction motor. In this paper, the fuzzy logic approach with park’s vectors is employed for diagnosing faults such as double line open circuit fault and double line short circuit fault which occur in voltage source inverter fed induction motor. The simulation for faults diagnosis is carried out for 4 kW Induction motor using MATLAB software and the results are discussed.