International Journal of Advanced Research in

Science and Technology (IJARST)


Volume 9 - Issue 1 | 2020


01. Structural, Electrical and Magnetic Studies on Cu(1-x)ZnxFe2O4 Nanoparticles Synthesized by Co-Precipitation method.

D. Santhosh Kumar, K. Chandra Mouli, N. V. Siva Krishna and G. V. Gaurav

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Highlights

Magnetic Nano particles of Cu(1-x)ZnxFe2O4 have been synthesized using Coprecipitation technique. During the experimental investigation, CuZn ferrites exhibited interesting structural, electrical and magnetic properties. Formation of spinel phase was identified using X-Ray diffraction (XRD) technique. The ferrite compounds prepared in the laboratory exhibited cubic spinal symmetry. The Lattice constants of the compounds were determined. The morphology and size of the crystallite was found by Transmission Electron Microscopy (TEM). The magnetic properties were studied using Vibration Sample Magnetometer (VSM) and the saturation magnetization (Ms), remenant magnetization (Mr) and the Coercivity force (Hc) values were evaluated. Electrical properties of the samples were quantified using standard two-probe method.

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02. Investigations of physico-chemical parameters and its pollution implications of Kolleru lake, Andhra Pradesh: A case study.

P. Ravindra Nadh* and K.B. Reddy.

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Highlights

Kolleru Lake is the largest freshwater lake in India. It is recognized as wetland of international significance and is one of the 27 Ramsar wetlands in India. Designated as a sanctuary in 1999 Kolleru Bird Sanctuary (KBS) provides habitat to diverse flora and fauna including some rare and threatened fauna. Seventy eight fish species belong to fourteen orders, 37 families and 57 genera’s were identified in the Kolluru Lake and Upputeru Creek diversity. Various samples were collected from different areas in and around Kolleru Lake analyzed for their physicochemical characteristics such as pH, total dissolved solids, Dissolved Oxygen, Biological Oxygen Demand, Chemical Oxygen Demand, NO3, PO4 etc.,. The results of this analysis were compared with the water quality standards of BIS. The quality of water samples were discussed with respect to these parameters and thus an attempt was made to ascertain the quality of water in the sampling areas.

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03. Sustainable Innovative Business Model For Fast Fashion Industry Augmenting Sharing Economy.

Kajal Harilal Shah

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Highlights

‘Trending Daily’ is a UK based online clothing rental aimed at providing an affordable & sustainable solution for the day to day clothing needs of fashion conscious women. Founded and operated by Kajal Shah, ‘Trending Daily’ is a fashion technology start-up that will meet the unmet market demand of regular fashion wear that is rented on a subscription basis as opposed to being purchased. Thorough research is conducted to understand consumer market and understanding competitors from a global as well as UK perspective. The target market identified is women in the age group of 18 to 50 years located in a 200 miles radius from East London. The company will set up its office and warehouse in East London, considered to be the fashion destination in UK. ‘Trending Daily’s affordable subscription-based pricing model promises to gain popularity and has potential for infinite membership sign up on the board.The key to success is procuring and maintaining enough inventory from lenders to run the show in good condition and delivering as per customer wants and needs. Many risks and scenarios were taken into consideration while developing the financial, marketing and operations plan for successful execution.

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04. Fossil Fuels Combustion Challenges

G.V.R. Murthy

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Highlights

With globalization there is growing demand for energy which is scarce and about 90% of global trade is carried by sea. Fossil fuels are consumed to provide energy services and about 95% of human primary energy needs comes from fuels. Though the world is transitioning from fossil fuels to sustainable renewable energy sources, the demand for fossil fuels will continue for several decades. Meanwhile fuel prices are sky rocketing and increasing global warming awareness with the regulatory authority imposing globally more stringent restrictions on carbon emissions, finding efficiency in fuel consumption and effective emission controlling is becoming a daunting task. In the operation of a vessel fuel costs accounts to nearly 30% of the operational costs and for this reason fuel consumption is an area of grave concern.

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05. Low Formaldehyde Emitting Urea Formaldehyde Resin for Plywood

Ranjana Yadav

Highlights

Urea formaldehyde resins were prepared in the laboratory using keratin through copolymerization reaction. Conventional Urea formaldehyde resins were also manufactured without the addition of keratin during the reaction. Through the determination of such reaction technology as molar ratio, adding a sequence of keratin and adding amount of keratin, we synthesized the low toxic urea resin. The resins were admixed with suitable hardener and the panels were made. Bond quality and formaldehyde content were evaluated. The results show that adding amount of 5 % keratin and adding keratin with the third feeding of urea is the best choice. From the studies, it was found that keratin addition reduces the formaldehyde content in the panel without affecting the strength properties.

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06. Predictors of Hypocalcaemia In Post Thyroidectomy Patients.

Abhiram Amudala

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Highlights

Thyroid disorders and surgical management for thyroid disorders are more common in any surgeons day to day life. In this modern medical era for every 3 hours one paper was presented about thyroid disorders. Post operative complications after thyroid surgery are variety and reported more frequently with budding and learning surgeons.Hypocalcaemia after bilateral surgical resection of thyroid is a potential early complication. From 9.2% to 25% of transient hypocalcaemia are reported in literature and the incidence of permanent hypocalcaemia ranges from 0.5 to 2%. Even in experienced hands the incidence of early transient post thyroidectomy hypocalcaemia is quite significant, some studies shows up to 59%.

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