A study of the antiwear action mechanism of alkoxy aluminium in lubricating oil

1992 ◽  
Vol 4 (4) ◽  
pp. 255-262
Author(s):  
J. Dong ◽  
G. Chen ◽  
F. Luo
Keyword(s):  
Lubricating Oil ◽  
Action Mechanism ◽  
Antiwear Action

Antiwear and Extreme-Pressure Action of Copper(II) Complex With Alkyl Phosphonic Acid Mono Alkyl Ester

1996 ◽  
Vol 118 (3) ◽  
pp. 676-680 ◽  
Author(s):  
Ren-Gen Xiong ◽  
Hong Wang ◽  
Jing-Lin Zuo ◽  
Cai-Ming Liu ◽  
Xiao-Zeng You ◽  
...  
Keyword(s):  
Mass Spectroscopy ◽  
Phosphonic Acid ◽  
Fast Atom Bombardment ◽  
Extreme Pressure ◽  
Tricresyl Phosphate ◽  
Action Mechanism ◽  
Monoalkyl Ester ◽  
Antiwear Properties ◽  
Alkylphosphonic Acid ◽  
Antiwear Action

The copper(II) complex with alkylphosphonic acid monoalkyl ester (CuAMP) was synthesized, and its structure shown to be laminar on the basis of fast atom bombardment mass spectroscopy (FABMS). The extreme-pressure, antiwear and antiseizure performance of CuAMP was assessed using a four-ball machine. The results showed that CuAMP exhibits better extreme-pressure and antiwear properties than tricresyl phosphate. Based on the results of surface analysis, the antiwear action mechanism of CuAMP is discussed.

Tribological performance and action mechanism of certain S,N heterocyclic compounds as potential lubricating oil additives

Wear ◽  
1997 ◽  
Vol 210 (1-2) ◽  
pp. 83-87 ◽  
Author(s):  
Yong Wan ◽  
Wenqin Yao ◽  
Xiaoyan Ye ◽  
Lili Cao ◽  
Guangqiu Shen ◽  
...  
Keyword(s):  
Heterocyclic Compounds ◽  
Tribological Performance ◽  
Lubricating Oil ◽  
Action Mechanism ◽  
Oil Additives ◽  
Lubricating Oil Additives

Tribological Performance and Action Mechanism of Cadmium Dialkyldithiophosphate

2005 ◽  
Vol 48 (2) ◽  
pp. 171-175 ◽  
Author(s):  
Hu Jianqiang ◽  
Wei Xianyong ◽  
Yao Junbing ◽  
Xie Feng ◽  
Zhu Huanqin ◽  
...  
Keyword(s):  
Tribological Performance ◽  
Action Mechanism

The Action Mechanism of the Purified Platelet Aggregation Principle of Trimeresurus mucrosquamatus Venom

1979 ◽  
Vol 41 (03) ◽  
pp. 475-490 ◽  
Author(s):  
Chaoho Ouyang ◽  
Che-Ming Teng
Keyword(s):  
Platelet Aggregation ◽  
Adenine Nucleotides ◽  
Muscle Relaxants ◽  
Prostaglandin Synthesis ◽  
Action Mechanism ◽  
Crude Venom ◽  
Platelet Factor ◽  
Induce Platelet Aggregation ◽  
Minimal Concentration ◽  
Aggregation Principle

SummaryThe minimal concentration of the platelet aggregation principle (Platelet Aggregoserpen- tin, PAS) necessary to induce platelet aggregation was 10 ng/ml, about one-hundredth of that of the crude venom. PAS induced the release of platelet factors 3 and 4 from platelets, but the released platelet factor 3 was easily inactivated by the anti-phospholipid effect of PAS. Pretreatment of platelets with neuraminidase potentiated PAS-induced platelet aggregation. PAS-induced platelet aggregation was independent on released ADP; it could occur in the ADP-removing systems, such as apyrase or a combination of phosphoenolpyruvate and pyruvate kinase. However, PAS-induced platelet aggregation could be inhibited by adenine nucleotides and adenosine.PAS-induced platelet aggregation was inhibited by some anti-inflammatory agents, antimalarial drugs, local anesthetics, antihistamine and smooth muscle relaxants. After deaggregation of PAS-treated platelets, thrombin and sodium arachidonate could further induce platelet aggregation, but ADP and second dose of PAS could not. It is concluded that PAS-induced platelet aggregation is due to prostaglandin synthesis. Recent literatures on the mechanism of platelet aggregation were surveyed and the actions of PAS were discussed.

EXPERIMENTAL ANALYSIS OF THE INFLUENCE OF LUBRICATING OIL AND FUEL ON THE VIBRATION LEVEL OF CRANKSHAFT AXIS SPARK IGNITION ENGINE

2019 ◽  
Author(s):  
Claudio Santana ◽  
Jose Eduardo Mautone Barros ◽  
Juan Carlos Horta Gutiérrez ◽  
Helder Alves de Almeida Junior ◽  
jorgimara braga
Keyword(s):  
Experimental Analysis ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Lubricating Oil ◽  
Vibration Level
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