diffusion – Page 2 – TechConnect Briefs

Structural Stability of Hydrogen Storage Materials

Katagiri M., Onodera H., Ogawa H., National Institute for Materials Science, JP

Elastic instability by hydrogenation and hydrogen diffusion are studied by molecular dynamics method. The bulk modulus instability causes the anorphization by hydrogenation. The atomic relaxation reduces the pressure fluctuation terms i n the elastic constant, [...]

How much advantage do Nanoscale Phenomena afford for Pulmonary Delivery?

Walji N., Thanou M., Quirke N., Imperial College London, UK

Although claims of improved performance due to nanoscale phenomena are made on a daily basis, exactly how much advantage can be afforded by nanotechnology for specific medical applications is quantitatively unknown. It is generally suggested [...]

Conformational Changes of Acetylcholine During Spontaneous Diffusion Through a Nano/Microporous Gel: Towards a Novel Approach to Biomolecular Hardware

Vaganova E., Yitzchaik S., Ovadia H., Lyshevski S.E., Khodorkovsky V., Pierola I.F., The Hebrew University, IL

This paper reports the results which intent to enhance the understanding of mechanisms and transitions taking place in biological systems. In order to mimic these low energy processes in natural systems, as well as to [...]

Ab-initio Calculations of Uniaxially and Biaxially Tensile Stress Effect

Kim Y.K., Park S.Y., Won T., Inha University, KR

In this paper, we present an ab-initio study on energy configurations, minimum energy path (MEP), and migra-tion energy for neutral indium diffusion in a uniaxial and biaxial tensile strained {100} silicon layer for the first [...]

Micro mixture: Size effect of micro mixing

Khelfaoui R., Benyoucef B., Colin S., ASSISTANT, DZ

A micro system is an optimized combination of elements fulfilling several complementary functions. Micro mixers applied in many fields, effective devices, for the handling of a chemical multitude of reaction, achieved objectives along ten years [...]

Cerebral Oxygen Diffusion and Transport, at the Microscopic Level, and BOLD fMRI

Hadjistassou C.K., Moyle K., Ventikos Y., University of Oxford, UK

With the prospect of elucidating the Blood Oxygenation Level Dependent (BOLD) fMRI effect we consider cerebral oxygen transport at the microscopic scale. We concentrate on the transient response of a capillary-tissue system following brain activity. [...]

How do we, as a society, guide the development of nanotechnology?

Aznar M.F., Foresight Nanotech Institute, US

Individuals, businesses, and governments evaluate nanotechnology on a spectrum from laissez faire to the precautionary principle, often without sufficient understanding of what nanotechnology is, how it works, how it is changing, or what its costs [...]

Keywords: diffusion