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Yogesh, K.M. Popat,Ganguly, B.,Brahmbhatt, H.,Bhattacharya, A. The Polymer Society of Korea 2008 Macromolecular Research Vol.16 No.7
The pressure driven membrane process has been a breakthrough in the removal of pollutants from drinking water. These experiments examined the removal of chlorophenol compounds from water using low pressure membranes. The removal performance of the membranes was based primarily on size exclusion. Apart from size exclusion, the polarity and pKa of the compounds also influences the membrane performance. The molecular size and dipole moments of the respective molecules were calculated using a quantum chemical method. The rejection of pollutants also followed the same trend as salt rejection by the membranes.
Some New Results on Seidel Equienergetic Graphs
Vaidya, Samir K.,Popat, Kalpesh M. Department of Mathematics 2019 Kyungpook mathematical journal Vol.59 No.2
The energy of a graph G is the sum of the absolute values of the eigenvalues of the adjacency matrix of G. Some variants of energy can also be found in the literature, in which the energy is defined for the Laplacian matrix, Distance matrix, Commonneighbourhood matrix or Seidel matrix. The Seidel matrix of the graph G is the square matrix in which $ij^{th}$ entry is -1 or 1, if the vertices $v_i$ and $v_j$ are adjacent or non-adjacent respectively, and is 0, if $v_i=v_j$. The Seidel energy of G is the sum of the absolute values of the eigenvalues of its Seidel matrix. We present here some families of pairs of graphs whose Seidel matrices have different eigenvalues, but who have the same Seidel energies.
Pandhare, Ramdas B.,Sangameswaran, B.,Mohite, Popat B.,Khanage, Shantaram G. 경희한의학연구센터 2012 Oriental Pharmacy and Experimental Medicine Vol.12 No.3
In India, Adenanthera pavonina is traditionally used in the treatment of diabetes mellitus and lipid disorders. In the present study, the antihyperglycaemic and lipid lowering effect of Adenanthera pavonina seed aqueous extract (APSAE) was evaluated using streptozotocin induced diabetes in rats. Streptozotocin was given at the dose of 55 mg/kg, i.p. After induction of diabetes, APSAE was administered for 30 days p. o. and simultaneously different biochemical parameters like plasma glucose, HbA1c, serum triglyceride, cholesterol, LDL-cholesterol and HDL-cholesterol were estimated. Diabetic control showed significant increase (P<0.01) in plasma glucose, serum triglyceride, cholesterol, LDL-cholesterol and significant decrease (P<0.01) in serum HDL-cholesterol and HbA1c. Treatment with APSAE showed significant reduction (P<0.01) in plasma glucose when compared with diabetic control. The elevated levels of serum triglyceride and cholesterol levels were significantly reduced (P<0.01) by APSAE. APSAE treatment for 30 days showed significant decrease in serum LDL-cholesterol (P<0.01) and significant increase in serum HDL cholesterol level (P<0.01). Moreover, diabetic control there was significant decrease in HbA1c which was significantly increased (P<0.05) by treatment with APSAE. Hence, from the result obtained in the present study it can be confirmed that Adenanthera pavonina has the potential to treat diabetes condition and associated lipid disorders.
Rahul Davis,Abhishek Singh,Robson Bruno Dutra Pereira,Roberta Maia Sabino,Ketul Popat,Paulo Soares,Lincoln Cardoso Brandão 한국정밀공학회 2023 International Journal of Precision Engineering and Vol.10 No.6
Shape memory alloys are mainly used in medical devices and surgical implants due to their biocompatibility. Machining these alloys into intricate patterns can be challenging due to their poor thermal conductivity which could lead to a poor surface finish. The poor surface finish causes a release of toxic elements such as Nickel, leading to contact allergies and thus deteriorating its biocompatibility. Using the right cooling technology can help improve their machinability and overcome issues related to surface integrity. The current study investigates the effect of milling parameters (cutting-speed, feed rate, and depth of cut) and different cooling strategies (flood coolant, cryogenic liquid nitrogen, and a hybrid approach) on the surface integrity of F2063 Ni55.6Ti44.4 shape memory alloy. In addition, the effect of cryogenically treating the cutting tool for further enhancement of surface finish was investigated. A considerable modification on the milled surfaces was observed when using the hybrid cooling/milling approach and cryo-treated tools in terms of morphological, chemical compositional, crystallographic, and microhardness. In addition, this modified surface had a noticeably improved bioactivity due to enhanced hydrophobicity (with contact angle 92°) and surface topography (Ra: 341.69 nm), which favoured cell adhesion and proliferation. The results indicate that the modified Ni55.6Ti44.4 alloy surface might be adequate for use in medical applications.