An approach has been made to the repairing welding carried out for the can iron engine frame and sole plate Daihatzu diesels for marine application, regarding to such aspects as specified welded position, preliminary to welding, welding method, welding technology and qualified weldor, with the aim of fulfilling the requirement of quality set for engine product by vessels.
In regard to the specific nature of marine diesel engines, based on the structural analysis of the common rail fuelinjection system typical for marine application, some points to be observed are given to the design of critical components inthe system, offering advices conducive to development of the common rail fuel injection system for marine purpose.
The simulating human intelligent control algorithm and 8098 single chip microprocessor are employed to design a marine intelligent controller, whose intelligent inference and control decision are based directly upon dynamic characteristics of the controlled process, and whose control performance is supposed to be superior to that of conventional PID controller.
The author describes the corrosion causnd by the variaous gases (O_2, Co_2 a d NH_3)in a marine boiler condensate-feedwater system and recommends pertinent corrosion-prevention measures with special emphasis on the precautions to be taken during the use of hydrazine.
ROLE OF INTERMEDIARY BIOMARKERS IN DETERMINING THE ANTICANCER EFFICACY OF MARINE COMPOUNDS
In the present study, two of the probable an umor marine compounds, manzamine A and sarcophine, were screened using benzo[a]pyrene (BP)-derived DNA adduct formation in MCF-7 cells as intermediary biomarker.
The results show that low concentrations of NO were self-produced by marine algae during the exponential growth period and were about nmol/L level.
The NO threshold concentration exists according to the influence of exogenous NO on the marine phytoplankton growth.
Characterization of iodine species in the marine aerosol: To understand their roles in particle formation processes
Gas hydrate is a recently-found new source of energy that mostly exists in marine sediments.
Potential contributions of extremophiles to hydrocarbon resources in marine extreme environments: A review
The potential relationship between extremophile activities and hydrocarbon resources in marine extreme environments are then discussed in details.
It could be now preliminary concluded that archaea and bacteria are the two main kinds of extremophiles in marine extreme environments.
Marine extremophiles might play an important role either directly or indirectly in the processes of hydrocarbon formation and subsequent alteration, and could indicate the evolution of hydrocarbon resources in marine extreme environments.
It was revealed that the breccia-conglomerates are composed of carbonatized serpentinite clasts and formed in a marine basin at the foothill of a relatively steep slope of a rather intensely dissected land.
The bentonites and carbonate-palygorskite clays formed in the alkaline medium of a marine basin.
An esterase S homolog was found in a marine mollusk.
Total ceramides containing nonbranched and iso-branched C18-and C19-phytosphingosines acylated with nonhydroxylated fatty acids were isolated from a marine sponge Oceanapia sp.
An unusual lipid a from a marine bacterium Chryseobacterium scophtalmum CIP 104199T