scholarly journals A polarization study of the cometary nebula Parsamyan 21

1985 ◽  
Vol 212 (1) ◽  
pp. 1P-4P ◽  
Author(s):  
P. W. Draper ◽  
R. F. Warren-Smith ◽  
S. M. Scarrott
Keyword(s):  
Cometary Nebula ◽  
Polarization Study

scholarly journals Synergistic and Antagonistic Effects of Sodium Molybdate-Zn2+System

2012 ◽  
Vol 9 (4) ◽  
pp. 1746-1752 ◽  
Author(s):  
J. Wilson Sahayaraj ◽  
A. John Amalraj ◽  
Susai Rajendran ◽  
N. Vijaya
Keyword(s):  
Aqueous Solution ◽  
Weight Loss ◽  
Inhibition Efficiency ◽  
Sodium Molybdate ◽  
Antagonistic Effect ◽  
Protective Film ◽  
Antagonistic Effects ◽  
Polarization Study ◽  
Weight Loss Method ◽  
Loss Method

The inhibition efficiency (IE) of sodium molybdate (SM) in controlling corrosion of carbon steel in an aqueous solution containing 120 ppm of Cl-, in the absence and presence of Zn2+has been evaluated by weight-loss method. A synergistic effect exists between SM and Zn2+when the concentration of Zn2+is 25 ppm and above. Inhibition efficiencies obtained are greater than 85%. Antagonistic effect exists between SM and Zn2+when the concentration of Zn2+is 10 ppm and below. The SM-Zn2+system shows excellent IE up to third day. Above third day IE decreases. Acceleration of corrosion takes place. Excellent IE is shown at pH 5,7 and 12. At pH 9, IE decreases since Zn2+is precipitated as Zn(OH)2in the bulk of the solution. Polarization study reveals that SM-Zn2+system functions as a mixed inhibitor. FTIR spectra reveal that the protective film consists of Fe2+-SM complex and Zn(OH)2.

Time-resolved polarization study of anisotropy in bacteriorhodopsin

1990 ◽  
Vol 94 (22) ◽  
pp. 8417-8423 ◽  
Author(s):  
Chaozhi. Wan ◽  
Jun. Qian ◽  
Carey K. Johnson
Keyword(s):  
Time Resolved ◽  
Polarization Study

scholarly journals Near-Infrared Imaging Polarization Study of M 17

2012 ◽  
Vol 64 (5) ◽  
pp. 110 ◽  
Author(s):  
Zhiwei Chen ◽  
Zhibo Jiang ◽  
Yuan Wang ◽  
Rolf Chini ◽  
Motohide Tamura ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Imaging ◽  
Near Infrared Imaging ◽  
Polarization Study

scholarly journals Corrosion Behaviour of Metals in Artificial Tear Solution

2016 ◽  
Vol 8 (3) ◽  
pp. 1716-1735
Author(s):  
C. Kumar ◽  
A. John Amal Raj ◽  
S.K. Selvaraj
Keyword(s):  
Corrosion Resistance ◽  
Mild Steel ◽  
Corrosion Behaviour ◽  
Ac Impedance ◽  
Impedance Spectra ◽  
Artificial Tear ◽  
Polarization Study ◽  
Ac Impedance Spectra

Human tear comes in contact with a number of instruments during operation in the eyes.  This results in a variety of undesirable effects such as corrosion and malfunction.  Corrosion behaviour of five metals, namely, mild steel (MS), mild steel coated with zinc (MS-Zn), Ni-Cr, Ni-Ti super elastic (Ni-Ti.SE), and SS 316 L in artificial tear solution has been studied by polarization study and AC impedance spectra.  The study reveals that the decreasing order of corrosion resistance in artificial tear solution is : Ni-Ti SE > Ni-Cr > SS 316 L > MS-Zn > MS.  The first three metals are better candidates and the first one is the best candidate for making instruments used in operation in the eyes, in presence of tears.

Ultrasound-assisted synthesis of Pt–Co/C bimetallic alloys for oxygen reduction in PEM fuel cells

2018 ◽  
Vol 2 (7) ◽  
pp. 1491-1499 ◽  
Author(s):  
Rajesh Kumar Polagani ◽  
Prashant L. Suryawanshi ◽  
Sarang P. Gumfekar ◽  
Shirish H. Sonawane ◽  
Muthupandian Ashokkumar
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
Pem Fuel Cells ◽  
Bimetallic Alloys ◽  
Polarization Study ◽  
Ultrasound Assisted

The polarization study revealed the information on the electrocatalytic activity of Pt–Co/C cathodes in PEMFCs.

Sign in / Sign up

Export Citation Format

Share Document