Results 291 to 300 of about 5,861,528 (330)
Some of the next articles are maybe not open access.
Liposomes of phosphatidylcholine: a biological natural surfactant as a dispersing agent
Coloration Technology, 2007Disperse dyes are very hydrophobic molecules that in their commercial form are usually milled in the presence of large amounts of dispersing agents (synthetic surfactants). Other dispersing agents are added as auxiliaries during the dyeing process. These synthetic surfactants were substituted for liposomes prepared with phosphatidylcholine, a well ...
Martí, Meritxell +3 more
openaire +2 more sources
Preparation of Boron Nitride Nanotubes Aqueous Dispersions for Biological Applications
Journal of Nanoscience and Nanotechnology, 2008While in the last years applications of carbon nanotubes in the field of biotechnology have been largely proposed, biomedical applications of boron nitride nanotubes (BNNTs) are yet totally unexplored. BNNTs have very interesting physical properties that should be exploited in the biomedical field.
Ciofani G +3 more
openaire +5 more sources
Absorption and dispersion of ultrasound in biological tissue
Ultrasound in Medicine & Biology, 1975Abstract Absorption of ultrasound is the process of conversion of vibrational energy into heat. In biological soft tissues, the absorption coefficients are roughly proportional to the frequency; typically α = 1 dB cm −1 MHz −1 . The velocities in soft tissues are similar, being about 1,500 msec − .
openaire +1 more source
Effect of Biological and Chemical Dispersants on Oil Spills
Petroleum Science and Technology, 2005Abstract The aim of this work is to study the effect of different types of chemical and biological dispersants used for crude oil spill treatment. The dispersing efficiency of the different dispersants on the crude oil was determined for selecting the most effective one.
R.I. Abdallah, S.Z. Mohamed, F.M. Ahmed
openaire +1 more source
Human-mediated dispersal in insects.
Current Opinion in Insect Science, 2019Central to the problem of biological invasions, human activities introduce species beyond their native ranges and participate in their subsequent spread.
J. Gippet +3 more
semanticscholar +1 more source
Inverse Problems for Dispersive Biological Media
1990Recently electromagnetic pulses with widths of picoseconds, 10−12 s, and even femtoseconds, 10−15 s, have become available. This opens a new field of inquiry called ultrafast spectroscopy. This new family of tools also provides new ways to look at old problems.
openaire +1 more source
Control of the Biological Dispersion of Therapeutic Proteins
1990Proteins have immense structural variety and variability, ergo their consideration and use of therapeutic agents able to elicit a pharmacological response. As for conventional drugs, much of today’s activity with therapeutic proteins in classical research and development environments ignores the issues of site(s) of action and routes, rates, and ...
openaire +1 more source
Dispersion in the ocean by physical, geochemical and biological processes
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1986Abstract The physical, geochemical and biological processes that lead to the dispersion of radionuclides throughout the marine environment and to interactions with man and his food chain are outlined. Although much remains to be understood about the details of these processes, certain limits may be put on radionuclide transport rates.
openaire +1 more source
Biological stabilizers for different dispersive clayey soils
2019Dispersive clays are a particular type of soil materials in which the clay fraction erodes in the presence of water by a process of deflocculating; in the state of de-flocculation, the particles remain in suspension as single units, with a consequent significant problem in geotechnical and geo-environmental projects. Dispersive soils have been found to
Abbaslou, Hakime +3 more
openaire +1 more source