Volume 6 | Issue 1 |

 Abstract

luminescent europium was successfully synthesized by using 5-fluoro-2-hydroxyacetophenone (FHAP) hydroxyketone ligand. The composition and structure of the FHAP ligand and its complex were supported by various techniques such as IR, NMR and CHN elemental analysis. The UV-visible and photoluminescence spectroscopy were used to explain the sensitization or antenna effect of the organic ligand. On successful irradiation at 397 nm, the emission spectra of complex showed narrow characteristic peaks at 580 nm, 592 nm, 616 nm and 652 nm corresponding to the 5D0?7F0, 5D0?7F1, 5D0?7F2, and 5D0?7F3 electronic transition of the europium ion. Among these peaks, the electric dipole 5D0?7F2 transition noticed the most intense peak which was hypersensitive to the site symmetry of europium ion and associated with the red luminescence of the complex. The CIE color coordinates of the complex fall in the red region of the chromaticity diagram. These results suggested that the light harvesting organic ligand FHAP absorbed the energy and transferred to the metal ion through sensitization process in an effective manner. On the basis of above results, we can be concluded that the complex possesses the candidature for light emitting materials and devices.

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 Keywords

Sensitization, antenna effect, europium ion, IR, photoluminescence.

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A ?-hydroxyketone 5-fluoro-2-hydroxyacetophenone (FHAP) was employed to synthesize the green light emitting terbium complex. The various techniques such as CHN elemental analysis, IR, NMR, UV-visible and photoluminescence (PL) spectroscopy were used to characterize the ligand and complex. In the emission spectra, three peaks at 491 nm, 545 nm and 592 nm observed which were assigned to the 5D4?7F6, 5D4?7F5 and 5D4?7F4 transitions of the terbium(III) metal ion. The electric dipole 5D4?7F5 transition dominated in the emission spectra which was sensitive to the chemical environment of the terbium ion and controlled the green luminescent color of the complex. The CIE color coordinates (x and y) fall in the green region of the chromaticity diagram. The optoelectronic properties demonstrated that the terbium(III) complex can be applied as luminescent component in display devices.

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 Keywords

?-hydroxyketone, IR, UV-visible, optoelectronic properties.

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 Abstract

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Keywords: Education, Social reconstruction, social change, Economic development, Social Value, Modernization.

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The Tea Industry is one of the oldest organized firm sectors with a large network of tea producers, retailers, distributors, auctioneers, exporters and employees. India is one of the largest producer, consumer and exporter of tea. The Nilgiris is one of the prominent tea growing area in India. Apart from the favourable agro-physical and climatic conditions prevailing in the study area, the land use and cropping pattern of the area to lend support for the development of tea plantations in The Nilgiris The Tea Board of India was constituted by the Tea Act of 1953 of the Indian Parliament. The Board has been entrusted with the task of developing the tea industry with in the country and promoting the sale of tea in overseas markets. In the present article it is attempted to examine the export prospects apart from the problems faced by the small and medium tea exporters in The Nilgiris district. The objectives are to study the satisfaction on prospects of Small and Medium Tea Exporters in the Nilgiris District and to suggest measures to improve the growth of small and medium tea exporters The study is mainly based on the primary data and secondary sources. Field survey method was employed to collect the primary data from Small and Medium Tea exporters in The Nilgiris district. The small and medium tea exporters were identified in the areas of Coonoor, Udhagamandalam and Kothagiri who are actively engaged in Tea Exports. Therefore, the required data for the present study was collected from 108 Small and Medium tea exporters using convenient sampling method. For analyzing the primary data Percentage Analysis, Weighted Average and Chi-Square Test were used. Study concludes that majority of the tea exporters had perceived positive and satisfactory opinion towards prospects, assistance is much needed for small tea exporters having low experience exporters and also involved in exporting raw material without value addition who can be supported by the tea board to promote the product in local market and also find suitable destinations for the exporters to achieve more profits.

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 Keywords

Tea, Small Exporters, Medium Exporters, Prospects, Satisfaction

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 Abstract

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Business Intelligence (BI), Data Warehousing, Data Analysis, Transactional data, automation data

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In Proposed study work we explored the kinetic and mechanism of oxidation of Propane 1,2-diol by Isoquinolium bromochromate in aqueous acetic acid medium because it is an ecofriendly, cheap, non-hazardous and easily synthesized in chemical laboratories and available in market. Proposed study work was carried out at 2980 K, we have analyzed oxidation of Propane 1,2-diol by isoquinolium bromochromate in aqueous acetic acid medium. Reaction follows first order kinetics at low concentration of Propane 1,2-diol with trend towards zero order at its higher concentration with respect Isoquinolium bromochromate and the reaction is acid catalyzed. In order to study the effect of catalyst ions were chosen as CuSO4 and MnSO4 were taken as the cat ions sources of Cu++ and Mn++ ions. The effects of these ions were studied by adding varying concentration of Cu++and Mn++ to the reaction mixtures, keeping the concentration of substrate, oxidant and composition of acetic acid water and temperature constant.

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Oxidant, reaction, mechanism, liner and reagent.

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Liquid liquid equilibrium data have been determined with sulfolane and model hydrocarbon mixtures consisting of butylbenzene-n-cetane, hexylbenzene-n-centane, octylbenzene-n-centane using industrial solvents e.g. N-methyl pyrrolidone (NMP) and tri and tetraethylene glycol and their mixtures (as cosolvent) with sulpholane. The data so obtained have been predicted for effect of solvent and temperature on selectivity and solubility.

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Liquid liquid equilibrium , selectivity, solubility.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

The Internet of Things (IoT) is another transformation of the Internet. Articles make themselves conspicuous and they get knowledge by settling on or empowering setting related choices. They can convey data about themselves. They can get to data that has been accumulated by different things, or they can be segments of complex administrations. The three critical variables pushing the IoT forward are Sensing Nodes, Embedded Processing and Communication. This change is went with the development of distributed computing abilities bolstered by an expansion away limit and top of the line preparing and the Machine-to-Machine (M2M) correspondence for information transport with security. By presenting distributed computing innovation, we can influence a full call to the capacity asset to pool and processing asset pool in the distributed computing engineering, and give high unwavering quality to IoT distributed storage benefit and effective distributed computing administrations to clients. The administration layer for M2M kind of correspondence will give a system to the coordination of the diverse correspondence advancements sent in the field of IoT. This M2M benefit layer will give the required administrations like information transport, security, gadgets administration and gadget revelation in an orchestrated way over a large number of vertical areas to the application layer. In this paper, a concise presentation of IoT is given and the IoT with distributed storage and M2M correspondence is clarified. The principle issues of IoT related with capacity, necessity of top of the line gadgets, security, protection, information transport can be settled by the blend of IoT with distributed computing and M2M correspondence. This will likewise profit the IoT in its usability in everyday life and accept to be future around there which is preparing for its transformation.

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Internet of Things, Cloud computing, Machine-to-Machine communication, MQTT, Cloud storage.

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Phyto- compounds are chemical compounds that are produced by plants. Thousands of phytochemical compounds are produced by naturally that are non-essential aspect originate in the plant nutriments. All the plant parts clamp the presence of phyto-compounds like leaves, vegetables and roots and play an important role in defence mechanism against environmental threats. Currently modern medicines practices the use of phyto-compounds for producing various medicines hence the importance of meaningful the action of each compounds are vary essential. In this study we investigate the innumerable phytochemical compounds present in HemigraphisColorata via GC - MS analysis.

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Medicinal plants, Phto-chemical compounds.

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An automobile bumper is the structural part, which front-most or rear-most part, designed to allow the car to sustain an impact without damage to the vehicle's safety systems. They are not capable for reducing injury to vehicle occupants in high-speed impact. This research work describes the design a car bumper using Bamboo material, which is protection device for light utility vehicle .The work describes the development of front protective device for Light vehicle and protection under run situation of bicyclists, pedestrians, two wheeler riders, which happen to be major part of road accidents in urban area .In this paper we mainly focused on weight reduction, material selection and geometry to improve crashworthiness. This Project model built using the Solid works Software and while the simulation of crash done in Numerical study carried by simulation via the Dynamic Analysis in RADIOSS 14.0 software. To determine the impact energy absorbing member and also investigate the weight reduction of the panel, to determine the stiffness on the crash behavior.

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 Keywords

Bamboo fiber, Bumper panel, Displacement, Epoxy composites, Structural analysis.

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Creative Commons Attribution 4.0 and The Open Definition