نتایج جستجو برای: bio based surfactant

تعداد نتایج: 2995077  

ژورنال: اقیانوس شناسی 2021

In the present study, the sediments of the Gurpi Formation in the Jafarabad section located in the southeast of Ilam were examined from the point of view of calcareous calcareous nannofossils. The sediments of the upper part of Gurpi Formation with a thickness of about 42 m are composed of limy marl sediments. In this study, 34 species belonging to 22 genera from the group of calcareous nannopl...

Journal: :مدیریت شهری 0
seyed majid naderi

there was a turning point in each period of time which human has discovered a new sight about the world and nature order in a way, and then has presented this relation by numeral, artful and industrial language. biourbanism focuses on the urban organism, considering it as a hyper complex system, according to its internal and external dynamics and their mutual interactions. nowadays when it is t...

Journal: :international journal of nanoscience and nanotechnology 2012
m. sahooli s. sabbaghi m. shariaty niassar

in this article cuo/water nanofluid was synthesized by using polyvinylpyrolidone (pvp) as the dispersant.  thenanofluid stability period and the heat transfer enhancement were determinedby measuring the thermal conductivities. to study the nano-fluid stability, zeta (ζ) potential, and absorbency were measured under different ph values and pvp surfactant concentrations; also thermal conductivity...

Journal: :journal of petroleum science and technology 2014
mohammad saber karambeigi ali haghighi asl masoud nasiri

treated sea water is the most significant source of water and surfactant floods. the various chemicals employed in treatment plants should be compatible with surfactant systems. based on surface tension experiments, the activity of these chemicals is examined over a wide range of concentrations in different solutions, including distillated water, sea water by using three types of surfactant mix...

Journal: :بوم شناسی کشاورزی 0
مریم نعمتی مهدی دهمرده

to study the effects of biological and manure fertilizer on quantity and quality characteristics of roselle (hibiscus sabdariffa l.), an experiment was conducted as split plot based on a randomized complete block design with three replications at the agricultural research center of zabol university, iran during growing season of 2012-2013. treatments included three manure level; 0, 10 and 20 t....

Journal: :American journal of respiratory and critical care medicine 2003
Roger G Spragg James F Lewis Wilhelm Wurst Dietrich Häfner Robert P Baughman Mark D Wewers James J Marsh

We performed a phase I/II trial in North America of a recombinant surfactant protein C-based surfactant (Venticute) as treatment for the acute respiratory distress syndrome. Patients were prospectively randomized to receive either standard therapy or standard therapy plus one of two doses of exogenous surfactant given four times over 24 hours. Surfactant administration was well tolerated. No si...

2002
Ralph W.F. Hardy

The bio-based economy can and should be to the 21 century what the fossil-based economy was to the 20 century. Agriculture will be core to the bio-based economy, providing source materials for commodity items, e.g. liquid fuels and value-added products such as chemicals and materials. For example, a hectare (2.47 acres) of biomass crop converted to 16,800 L (4,450 gallons) of ethanol at a cost ...

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