Zobrazeno 1 - 10
of 1 073
pro vyhledávání: '"Kumar Surender"'
Publikováno v:
Green Processing and Synthesis, Vol 9, Iss 1, Pp 399-404 (2020)
Green synthesis of 3-(1-naphthyl), 4-methyl-3-(1-naphthyl) coumarins and 3-phenylcoumarins has been carried out in one step by reacting 2-hydroxybenzaldehydes and 2-hydroxyacetophenones with 1-naphthylacetic anhydride and phenylacetic anhydride, resp
Externí odkaz:
https://doaj.org/article/b523e8fdca2c48d68986d3f21979d3ce
The index of a monic irreducible polynomial $f(x)\in\mathbb{Z}[x]$ having a root $\theta$ is the index $[\mathbb{Z}_K:\mathbb{Z}[\theta]]$, where $\mathbb{Z}_K$ is the ring of algebraic integers of the number field $K=\mathbb{Q}(\theta)$. If $[\mathb
Externí odkaz:
http://arxiv.org/abs/2404.17351
Atomic effective pseudopotentials enable atomistic calculations at the level of accuracy of density functional theory for semiconductor nanostructures with up to fifty thousand atoms. Since they are directly derived from ab-initio calculations perfor
Externí odkaz:
http://arxiv.org/abs/2403.08533
Autor:
Kumar Surender, Sharma Dinesh Kumar
Publikováno v:
Green Processing and Synthesis, Vol 6, Iss 1, Pp 73-77 (2017)
A highly efficient, eco-friendly and one-pot synthesis of benzofuran substituted thiazolo[3,2-b][1,2,4]triazoles was developed involving the reaction of 2-acetyl benzofurans and 5-mercapto-3-(4-chlorophenyl)-1,2,4triazole in the presence of molecular
Externí odkaz:
https://doaj.org/article/dae8d7994c324276be960e2b14b3fb57
Autor:
Ravi R. Kasliwal, Manish Bansal, Nagaraj Desai, Bhavesh Kotak, Ammar Raza, Hardik Vasnawala, Amit Kumar, K. Agarwal Pankaj, Arora Parneesh, Bansal Manish, Basarge Mahesh, Desai Nagaraj, K. Jain Vidyut, R. Kasliwal Ravi, Kotak Bhavesh, Kumar Amit, Kumar Prathap, Kumar Surender, P.P. Mohannan, Rao Srinivas, Raza Ammar, Sethi Sudhir, Shah Mahesh, Shetty Meena, U.P. Singh, Thanvi Sunil, Vasnawala Hardik
Publikováno v:
Indian Heart Journal, Vol 68, Iss 6, Pp 821-827 (2016)
Background: There is presently no data to describe normal distribution of carotid intima-media thickness (CIMT), an established measure of subclinical atherosclerosis, in Indian subjects. Methods: In this multi-centric study, 1229 subjects with age
Externí odkaz:
https://doaj.org/article/c44a3ee407694949ab6758f417a69a15
Autor:
Jakhar, Anuj, Kumar, Surender
Suppose $m$ be a $12$-th power free integer. Let $K=\mathbb{Q}(\theta)$ be an algebraic number field defined by a complex root $\theta$ of an irreducible polynomial $x^{12}-m$ and $O_K$ be its ring of integers. In this paper, we determine the highest
Externí odkaz:
http://arxiv.org/abs/2304.00339
Let $f(x)=x^n+ax^2+bx+c \in \Z[x]$ be an irreducible polynomial with $b^2=4ac$ and let $K=\Q(\theta)$ be an algebraic number field defined by a complex root $\theta$ of $f(x)$. Let $\Z_K$ deonote the ring of algebraic integers of $K$. The aim of this
Externí odkaz:
http://arxiv.org/abs/2303.03138
Let $f(x)=x^7+ax+b$ be an irreducible polynomial having integer coefficients and $K=\mathbb{Q}(\theta)$ be an algebraic number field generated by a root $\theta$ of $f(x)$. In the present paper, for every rational prime $p$, our objective is to deter
Externí odkaz:
http://arxiv.org/abs/2301.00365
Autor:
Sharma Dinesh, Kumar Surender
Publikováno v:
Green Processing and Synthesis, Vol 2, Iss 2, Pp 151-155 (2013)
A simple and highly efficient procedure for the synthesis of 2H-chromen-2-ones via von Pechmann condensation, involving the grinding of different phenols and β-ketoesters in the presence of silica supported sulfuric acid at room temperature, under s
Externí odkaz:
https://doaj.org/article/4c84eb1eba6c4a0d8824beed0b1d5546