Simultaneous estimation of phenolic acids in sea buckthorn (Hippophaë rhamnoides) using RP-HPLC with DAD

Autor: K. Sarin Kumar, C. Arumughan, Ranjith Arimboor

Publikováno v: Journal of Pharmaceutical and Biomedical Analysis. 47:31-38

A RP-HPLC-DAD method was developed and validated for the simultaneous analysis of nine phenolic acids including gallic acid, protocatechuic acid, p-hydroxybenzoic acid, vanillic acid, salicylic acid, p-coumaric acid, cinnamic acid, caffiec acid and f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::862b8479f320dc27b075d5d3d56afa36
https://doi.org/10.1016/j.jpba.2007.11.045

Characterization of crystalline Pb0.92La0.08Zr0.4Ti0.6O3 thin films grown by off-axis radio frequency magnetron sputtering

Autor: Jostein K. Grepstad, Thomas Tybell, Ø. Dahl, S.V. Pettersen, A. K. Sarin Kumar

Publikováno v: Thin Solid Films. 492:71-74

In this study, we examine the growth conditions for Pb 0.92 La 0.08 Zr 0.4 Ti 0.6 O 3 thin films with a linear electro-optical response. Films grown on SrTiO 3 (100) substrate show good crystalline quality and surface smoothness, if deposited within

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00bb72aecc3847544c9e3b0840699a1f
https://doi.org/10.1016/j.tsf.2005.06.099

High-frequency surface acoustic wave device based on thin-film piezoelectric interdigital transducers

Autor: Thomas Tybell, William Daniau, A. K. Sarin Kumar, Luca Pellegrino, Sylvain Ballandras, Patrycja Paruch, Jean-Marc Triscone, Daniele Marré

Publikováno v: Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2004, A85, pp.1757-1759
Applied Physics Letters, Vol. 85, No 10 (2004) P. 1757

Using high-quality epitaxial c-axis Pb(Zr0.2Ti0.8)O3 films grown by off-axis magnetron sputtering onto metallic (001) Nb-doped SrTiO3 substrates, a nonconventional thin-film surface acoustic wave device based on periodic piezoelectric transducers was

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daefc554563848a7f5f458b4495e44e9
https://doi.org/10.1063/1.1787897

Amino groups-based polymers for CO2 detection; A comparison between two sensing mechanism models

Autor: Bogdan-Catalin Serban, Cornel Cobianu, Octavian Buiu, Nicolae Varachiu, Mihai Brezeanu, S. Costea, Cazimir G. Bostan, A. K. Sarin Kumar

Publikováno v: CAS 2011 Proceedings (2011 International Semiconductor Conference).

Two CO 2 sensing mechanisms, based on the Hard Soft Acids Bases (HSAB) and Bronsted-Lowry theories, are discussed and compared. They are evaluated by selecting amino groups-based coating layers, which are deposited on Surface Acoustic Wave (SAW) devi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e45131c577a8f2ca0559422068891cd1
https://doi.org/10.1109/smicnd.2011.6095734

Selection of gas sensing materials using the Hard Soft Acid Base theory; application to Surface Acoustic Wave CO2 detection

Autor: Cazimir G. Bostan, Cornel Cobianu, Nicolae Varachiu, Octavian Buiu, S. Costea, Bogdan-Catalin Serban, A. K. Sarin Kumar

Publikováno v: CAS 2010 Proceedings (International Semiconductor Conference).

The Hard Soft Acid Base (HSAB) theory is introduced as a new tool to select or design sensitive materials for carbon dioxide detection with SAW-BAW (Surface Acoustic Waves - Bulk Acoustic Waves) devices. According to HSAB, CO 2 is hard acid, thus sma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c55047775c8d0304826806750e507e1e
https://doi.org/10.1109/smicnd.2010.5650619