Evidence of quantum phase slip effect in titanium nanowires
Electron transport properties of titanium nanowires were experimentally studied. Below the effective diameter
50nm all samples demonstrated a pronounced broadening of the R(T ) dependencies, which cannot be accounted
for by thermal fluctuations. Extensive microscopic and elemental analyses indicate the absence of structural or/and
geometrical imperfections capable of broadening the R(T ) transition to such an extent. We associate the effect
with quantum fluctuations of the order parameter
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.
On the Russian population opinion one of the most urgent ecology problems is the water pollution. By the data of Russian Federal Consumer Rights Protection and Human Health Control Service about 37% of the surface sources of centralized drinking water supply don`t meet sanitary norms and rules and 22% of Russian citizens do not have access to centralized water supply .
The study outlined three possible ways of overcoming above marked problems. The first method is based on the modern industrial-management scheme which is traditional for water provision in Russia. The second option suggests cleaning up sources of water intakes. The third way shows an option of varying treatment methods and technologies, depending on customer needs.
The Roadmap developed by Higher School of Economics and Rusnano indentified that nanotechnologies increase the efficiency and decrease energy consumption of traditional as well as innovation processes of water purification. In particular the perspective area of nanotechnology application is lies in the sphere of innovation sorbents and coagulants. Moreover nanotechnologies can also be used in baromembrane processes and membrane bioreactors.
Innovation technologies, processes and products implementation should be specific to individual regions and municipalities. This approach is based on the compliance of centralized and decentralized water supply, inlet and outlet water quality.
The Roadmap results are designed for the formation of government and regional policy on the pure water provision for population and industrial water treatment. Furthermore it indicates the most relevant business ideas and evaluates projects for nanotechnology and nanoproducts used in this field.
A new approach is proposed to solve the quantum evolution problem for a system with an arbitrary number of coupled optical parametric processes. Our method is based on the canonical transformations which define the evolution of the system in the Heisenberg picture. This theory overcomes the difficulties arising in the Wei–Norman method. The application of the approach developed is illustrated with the example of generation of a three-mode entangled light field.
Transhumanism is the brand-new term, which appears only in the beginning of the 21st century. The adherents of this term consider further development of humanity in a close contact with nanotechnology. People were always interested in how to improve the quality of life and prolong it. Medieval alchemists didn’t find the philosopher’s stone, the Holy Grail is still a legend. The Third Reich scientist’s experiments influenced in the development of medicine, but didn’t reveal the secret of immortality. In the 21st century scientists came more than ever closer to the creation of perfect man with the help of nanotechnology. How do philosophers consider this breakthrough in philosophy of technics?
The dynamics of a two-component Davydov-Scott (DS) soliton with a small mismatch of the initial location or velocity of the high-frequency (HF) component was investigated within the framework of the Zakharov-type system of two coupled equations for the HF and low-frequency (LF) fields. In this system, the HF field is described by the linear Schrödinger equation with the potential generated by the LF component varying in time and space. The LF component in this system is described by the Korteweg-de Vries equation with a term of quadratic influence of the HF field on the LF field. The frequency of the DS soliton`s component oscillation was found analytically using the balance equation. The perturbed DS soliton was shown to be stable. The analytical results were confirmed by numerical simulations.
Radiation conditions are described for various space regions, radiation-induced effects in spacecraft materials and equipment components are considered and information on theoretical, computational, and experimental methods for studying radiation effects are presented. The peculiarities of radiation effects on nanostructures and some problems related to modeling and radiation testing of such structures are considered.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .