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Sandip Bhattacharya,Mohammed Imran Hussain,John Ajayan,Shubham Tayal,Louis Maria Irudaya Leo Joseph,Sreedhar Kollem,Usha Desai,Syed Musthak Ahmed,Ravichander Janapati 한국전자통신연구원 2023 ETRI Journal Vol.45 No.5
In this study, we designed a 6T-SRAM cell using 16-nm CMOS process and analyzed the performance in terms of read-speed latency. The temperaturedependent Cu and multilayered graphene nanoribbon (MLGNR)-based nanointerconnect materials is used throughout the circuit (primarily bit/bit-bars [red lines] and word lines [write lines]). Here, the read speed analysis is performed with four different chip operating temperatures (150K, 250K, 350K, and 450K) using both Cu and graphene nanoribbon (GNR) nano-interconnects with different interconnect lengths (from 10 μm to 100 μm), for reading-0 and reading-1 operations. To execute the reading operation, the CMOS technology, that is, the16-nm PTM-HPC model, and the16-nm interconnect technology, that is, ITRS-13, are used in this application. The complete design is simulated using TSPICE simulation tools (by Mentor Graphics). The read speed latency increases rapidly as interconnect length increases for both Cu and GNR interconnects. However, the Cu interconnect has three to six times more latency than the GNR. In addition, we observe that the reading speed latency for the GNR interconnect is ~10.29 ns for wide temperature variations (150K to 450K), whereas the reading speed latency for the Cu interconnect varies between ~32 ns and 65 ns for the same temperature ranges. The above analysis is useful for the design of next generation, high-speed memories using different nano-interconnect materials.
STABILITY AND BIFURCATION IN A DIFFUSIVE PREY-PREDATOR SYSTEM : NON-LINEAR BIFURCATION ANALYSIS
Bhattacharya, Rakhi,Bandyopadhyay, Malay,Banerjee, Sandip 한국전산응용수학회 2002 Journal of applied mathematics & informatics Vol.10 No.1
A stability analysis of a non-linear prey-predator system under the influence of one dimensional diffusion has been investigated to determine the nature of the bifurcation point of the system. The non-linear bifurcation analysis determining the steady state solution beyond the critical point enables us to determine characteristic features of the spatial inhomogeneous pattern arising out of the bifurcation of the state of the system.
Das, Subhasish,Teja, K. Charan,Mukherjee, Sandip,Seal, Soma,Sah, Rajesh Kumar,Duary, Buddhadeb,Kim, Ki-Hyun,Bhattacharya, Satya Sundar Elsevier 2018 Environmental research Vol.161 No.-
<P><B>Abstract</B></P> <P>Carlinoside is a unique compound well-known for its excellent curative potential in hepatitis. There is a substantial research gap regarding the medicinal use of carlinoside, as its concentrations are greatly variable (depending on locality). We cultivated <I>Cajanus cajan</I> using vermicompost as a major organic amendment at two locations (Sonitpur and Birbhum) with different soil types, but identical climate conditions. Sonitpur soils were richer in soil organic C (SOC), enzyme activation, and N/P content than Birbhum. However, vermi-treatment improved many soil properties (bulk density, water retention, pH, N/P/K, and enzyme activity) to narrow the locational gap in soil quality by 15–28%. We also recorded a many-fold increment in SOC storage capacities in both locations, which was significantly correlated with carlinoside, total phenol, and flavonoid contents in <I>Cajanus</I> leaves. This significantly up-regulated the carlinoside induced expression of the bilirubin-solubilizing UGT1A1enzyme in HepG2 cell and rat liver. Leaf extracts of vermicompost-aided plants could cure hepatitis in affected rat livers and in the HepG2 cell line. Accordingly, vermi-treatment is an effective route for the growth of <I>Cajanus</I> as a cash crop for biomedical applications and can produce a concurrent improvement in soil quality.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Soil organic C primarily induces carlinoside biosynthesis in <I>Cajanus cajan</I>. </LI> <LI> Vermicompost elevates the medicinal value of <I>Cajanus cajan</I> against hepatitis. </LI> <LI> Vermi-treated <I>Cajanus</I> yield carlinoside stably irrespective of growing location. </LI> <LI> Vermi-treated leaf extracts expedited bilirubin solubilization in rat liver. </LI> </UL> </P>
Swain, Sarojini,Sharma, Ram Avatar,Patil, Sandip,Bhattacharya, Subhendu,Gadiyaram, Srinivasa Pavan,Chaudhari, Lokesh The Korean Institute of Electrical and Electronic 2012 Transactions on Electrical and Electronic Material Vol.13 No.6
Considering the properties of the carbon nano tubes (CNT), their inclusion into the polymer matrix vastly increases the properties of the resultant composite. However, this is not the case due to the poor interfacial adhesion of the CNT and the polymer matrix. The present approach focuses on increasing the interaction between the polymer matrix and the CNT through the chemical modification of the CNT resulting in allyl ester functionalized carbon nanotubes (ACNT) and silane functionalized carbon nano tubes (SCNT) which are capable of reacting with the polymer matrix during the curing reaction. The addition of ACNT/SCNT into unsaturated polyester resin (UPR) resulted in the improvement of the electrical properties of resulted nanocomposites in comparison to the CNT. The surface resistivity, volume resistivity, dielectric strength, dry arc resistivity, and the comparative tracking index of the nanocomposites were significantly improved in comparison to CNT. The chemical modification of CNT was confirmed via spectroscopy.
Sarojini Swain,Ram Avatar Sharma,Sandip Patil,Subhendu Bhattacharya,Srinivasa Pavan Gadiyaram,Lokesh Chaudhari 한국전기전자재료학회 2012 Transactions on Electrical and Electronic Material Vol.13 No.6
Considering the properties of the carbon nano tubes (CNT), their inclusion into the polymer matrix vastly increases the properties of the resultant composite. However, this is not the case due to the poor interfacial adhesion of the CNT and the polymer matrix. The present approach focuses on increasing the interaction between the polymer matrix and the CNT through the chemical modification of the CNT resulting in allyl ester functionalized carbon nanotubes (ACNT)and silane functionalized carbon nano tubes (SCNT) which are capable of reacting with the polymer matrix during the curing reaction. The addition of ACNT/SCNT into unsaturated polyester resin (UPR) resulted in the improvement of the electrical properties of resulted nanocomposites in comparison to the CNT. The surface resistivity, volume resistivity, dielectric strength, dry arc resistivity, and the comparative tracking index of the nanocomposites were significantly improved in comparison to CNT. The chemical modification of CNT was confirmed via spectroscopy.