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Viney Ghai,Kingshuk Chatterjee,Prabhat K. Agnihotri 한국탄소학회 2021 Carbon Letters Vol.31 No.3
Vertically Aligned Carbon Nanotubes (VACNTs)-coated flexible aluminium (Al) foil is studied as an electrode for supercapacitor applications. VACNTs are grown on Al foil inside thermal Chemical Vapor Deposition (CVD) reactor. 20 nm thick layer of Fe is used as a catalyst while Ar, H2 and C2H2 are used as precursor gases. The effect of growth temperature on the structure of CNTs is studied by varying the temperature of CVD reactor from 550 °C to 625 °C. Better alignment of VACNTs arrays on Al foil is recorded at 600 °C growth temperature in comparison to other processing temperatures. Cyclic voltammetry results shows that VACNTs-coated Al foil has a specific capacitance of ~ 3.01 F/g at a scan rate of 50 mV/s. The direct growth of VACNT array results in better contact with Al foil and thus low ESR values observed in impedance spectroscopy analysis. This leads to a fast charge–discharge cycle as well as a very high value of power density (187.79 kW/ kg) suitable for high power applications. Moreover, wettability study shows that the fabricated VACNT electrode has a contact angle of more than 152° which signifies that it is a superhydrophobic surface and hence shows lower specific capacitance in comparison to reported values for VACNT array. Therefore, it is necessary to develop suitable post-processing strategies to make VACNTs hydrophilic to realize their full potential in supercapacitor applications.
Upasana Sarma,Viney Kumar Govila,Akanksha Yadav 한국식품연구원 2020 Journal of Ethnic Foods Vol.7 No.-
Assam lies nestled in the far north-east corner of the Indian subcontinent. A country blessed with ample natural resources, the state of Assam also has a plethora of options in terms of choosing their core food sources. Banana or kol, as named in Assamese, has hundreds of varieties available in many parts of the world. They grow particularly well in tropical countries. It is found abundantly in the state of Assam and people have been making judicious use of the fruit and its plant parts in their cuisine since time immemorial. But nevertheless, a detailed review on its uses and importance and rising popularity in ethnic delicacies has not yet been documented well. This paper attempts to bring together the popular banana-based recipes of Assam state and its use in everyday religious ceremonies by the people of this community. It has age-old recipes used commonly in Assamese households and descriptive analysis of their microbial and biochemical diversity. It aims to bring to the fore the rising popularity of these ethnic dishes amongst modern population and is an attempt to revive these dishes and bring them into the mainstream Indian ethnic cuisine. As more and more people become aware of ethnic cuisine, it increases a global connectivity based on exchange of such information from lesser-known sources. The importance and significance of documenting these lesser-known recipes of Indian Assamese cuisine is an attempt to keep it relevant and take it to a broader audience who are appreciative of such oriental dishes. It is also high time a policy framework is worked upon by respective government of state and the centre for the true recognition and sustainability of such ethnic cuisine.
An Evaluation of Dynamic Java Bytecode Software Watermarking Algorithms
Krishan Kumar,Viney Kehar,Prabhpreet Kaur 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.7
In the era of Information technology, Software Piracy and security has become one of the most important issue in world. Numbers of techniques have been proposed and implemented to prevent software piracy and illegal modification. Among all the protection techniques, software watermarking technique which attempts to protect the software by embedding copyright notice or unique identifiers into software to prove the ownership of software. Software Watermarking discourage piracy; as a proof of purchase or authorship; also helps in tracking the source of illegal redistribution of copies of software. We evaluate the existing dynamic watermarking algorithms using them to watermark java bytecode files and then applying distortive attacks to each watermarked program by obfuscating. Our study has shown that some watermarks were removed as results of these transformations.
Formulation, validation and evaluation studies on metaxalone and diclofenac potassium topical gel
Ashutosh Tiwari,Puja Bag,Mrinmoy Sarkar,Viney Chawla,Pooja A. Chawla 환경독성보건학회 2021 환경독성보건학회지 Vol.36 No.1
Twenty different batches of gels containing metaxalone and diclofenac potassium were prepared for topical application. These drugs act synergistically in the management of pain and inflammation. Gels were prepared by varying the type of gelling agent (ten batches each of hydroxyl propyl methyl cellulose and carbopol 934). The prepared gels were characterized and evaluated. Batch F7 emerged as the best batch on the basis of favourable pH, high drug content, homogeneity and drug release. HPLC (High-performance liquid chromatography) method validation of gel formulation was also carried out and the developed and validated method was found to be robust and accurate.