Open Access Original Research Article

Selection of Suitable Type of Nozzles for Development of Electrostatic Induction Nozzle

B. Krishna Kanth, C. Ramana, S. Joseph Reddy, L. Edukondalu, B. Ravindra Reddy

Current Journal of Applied Science and Technology, Page 1-10
DOI: 10.9734/cjast/2021/v40i3931591

The electrostatic induction mechanism, which superimposes charges on pesticide spray droplets, creates an impact on deposition and wraparound effect on leaf surfaces Smaller droplets have a higher capability to charge accumulation over the surface of the droplet as compared with larger droplets. This paper studied the effect of nozzle type (flat fan, hollow cone, and full cone nozzle), orifice area (1 and 1.5 mm2), and operating pressure (3-5kg cm-2) on spray droplet characteristics on soil bin. Water-sensitive papers were analysed by image analysis software to get the droplet characteristics.   The smallest droplets of a hollow cone, flat fan, and full cone were 130, 142, and 279.76 µm respectively produced at 5kg cm-2 and orifice opening 1 mm2.  With an increase of pressure droplet size and relative span was decreased for all selective nozzle. From the selected nozzles, the lowest relative span of 0.89 was found with a hollow cone nozzle at 5 kg cm-2 pressure and orifice size of 1 mm2. Among all the selected nozzles hollow cone nozzle produced the smallest droplet sizes and lowest relative span for all selected parameters.

Open Access Original Research Article

Multivariate and Association Analysis for Yield and Yield Attributing Traits in Quality Protein Maize (QPM) Inbred Lines

Vaskar Subba, Anirban Nath, Aditi Ghosh, Amitava Ghosh, Sabyasachi Kundagrami

Current Journal of Applied Science and Technology, Page 11-20
DOI: 10.9734/cjast/2021/v40i3931592

The present investigation reveals the diversity existing among thirty inbred lines of Quality Protein Maize (QPM) in terms of yield and yield attributing traits. The study further elucidates the mutual association among the various morphological traits recorded among the inbred lines. The inbred lines were evaluated during the Rabi seasons of 2016-17, 2017-18 and 2018-19. The analysis of variance calculated over the mean performances of the inbred lines across three rabi seasons revealed significant differences among the inbred lines in terms of yield and yield attributing traits. The diversity among the inbred lines were further determined using cluster analysis which classified the inbred lines into 3 phylogenetically distinct groups. Additionally, a principal component analysis was performed which revealed three principal components (i.e., PC I, II and III) elucidating eighty six percent of the total observable variance among the inbred lines, with traits like grain yield, cob length, cob diameter, number of grain rows per cob, number of grains per row and number of grains per cob contributing to nearly half of the total variance explained by the Principal Component Analysis (PCA). The correlation as well as path coefficient analysis performed for the various traits further indicated significant influence of morphological traits like cob length, cob diameter, number of grain rows per cob and number of grains per cob over the observable grain yield per plant. Overall, the observations from the current investigation can be helpful in identifying superior parental lines to be used in future hybrid maize development programs.

Open Access Original Research Article

Virtual Docking of VBP1 with HBX and NFκB Protein to Study the Activation of NFκB in the Regulatory Mechanism of Liver Cancer

Mamta Sagar, Padma Saxena, Suruchi Singh, Ravindra Nath, Pramod W. Ramteke

Current Journal of Applied Science and Technology, Page 21-28
DOI: 10.9734/cjast/2021/v40i3931593

Molecular docking is an efficient way to study protein-protein and protein-ligand interactions in virtual mode, this provides structural annotations of molecular interactions, required in the drug discovery process. The Cartesian FFT approach in ‘Hex’ spherical polar Fourier (SPF) uses rotational correlations, this method is used here to study protein-protein interactions. Hepatitis B virus (HBV) X protein (HBx) is essential for virus infection and has been used in the development of therapeutics for liver cancer. It can interact with many cellular proteins. It interferes with cell viability and stimulates HBV replication. The von Hippel-Lindau binding protein 1(VBP1) has an important role in HBx-mediated nuclear factor kappa B (NFkB) stimulation. VBP1 and HBx function as coactivators in the activation of NFκB binding. Docking results revealed that HBx and NFkB bind with VBP1 at the common site on amino acids positions Arg 161, Glu 92, and Arg 82, which may have a role in HBx-mediated NFκB activation. Lowest energy complex VBP1- NFkB1 was obtained at -883.70 Kcal/mol. The amino acids involved in interaction among HBx, VBP1, and NFκB proteins, may be involved in transcriptional regulation and has significance in normal and abnormal regulation. These amino acid interactions may be associated with the manifestation of Liver cancer.

Open Access Original Research Article

Measurement of Dielectric and Magnetic Constants of Ferrofluid-Doped Sol-Gels by a Resonant Cavity Method

B. Mahamout Mahamat, O. B. Arafat, B. Sauviac, M. F. Blanc-Mignon, S. Neveu, D. Vincent, F. Royer

Current Journal of Applied Science and Technology, Page 29-36
DOI: 10.9734/cjast/2021/v40i3931594

Materials with specific electromagnetic properties are increasingly used for the realization of passive components. Therefore, electromagnetic characterization is a priority to know these materials properties. This study focuses on the electromagnetic characterization of 10 nm maghemite ferrofluid doped sol-gel using a resonant cavity method. We deposited the sol-gel by dipping/removal on an alumina substrate in order to make measurements on the cavity to determine the complex permittivity and permeability. Two studies were carried out; the first consisted in varying the doped sol-gel thickness of layers of the same concentration in the realization of samples; and the second consisted in varying the volume concentration of ferrofluid according to the matrix dimensions. The first study showed that the dielectric constants do not vary with the thickness of the magnetic sol-gel layers. In the second study, measurements also showed that the gyromagnetic resonance is the same for all samples regardless of the ferrofluid volume concentration.

Open Access Original Research Article

Green Buildings - A Solution to India’s High Energy Consumption

Deeptha .

Current Journal of Applied Science and Technology, Page 37-48
DOI: 10.9734/cjast/2021/v40i3931595

This paper is to bring into knowledge, a proficiency, which would help us to fight against energy crises using new construction techniques. It discusses the needs and benefits of sustainable Green buildings. It focuses on coming up with new ideas to build green buildings with minimum Embodied Energy. High energy conservation in buildings can be achieved by insulating materials (powerful device for designing and building) and by improving the construction envelope heat safety, which then controls the building envelope's transmissivity. Since the orientation of buildings and their protection from the sun cannot be implemented freely in the urban environment where it is densely built, heat insulation and adoption of bioclimatic architectural principles becomes the need. Green buildings, at the decreased ranges of consumption of resource and energy, the design of green buildings will meet the needs of users. This is a wise approach to use India’s energy in this period of crisis. These buildings will replace most of our present building methodologies. “Energy can neither be created nor destroyed”, hence application of this paper is aimed at utilizing the irrelevant energy consumed in building processes and providing comfort at the cost of sustainability.