scholarly journals Nanolubricant additives: A review

Friction ◽  
2020 ◽  
Author(s):  
Jun Zhao ◽  
Yiyao Huang ◽  
Yongyong He ◽  
Yijun Shi

AbstractUsing nanoadditives in lubricants is one of the most effective ways to control friction and wear, which is of great significance for energy conservation, emission reduction, and environmental protection. With the scientific and technological development, great advances have been made in nanolubricant additives in the scientific research and industrial applications. This review summarizes the categories of nanolubricant additives and illustrates the tribological properties of these additives. Based on the component elements of nanomaterials, nanolubricant additives can be divided into three types: nanometal-based, nanocarbon-based, and nanocomposite-based additives. The dispersion stabilities of additives in lubricants are also discussed in the review systematically. Various affecting factors and effective dispersion methods have been investigated in detail. Moreover, the review summarizes the lubrication mechanisms of nanolubricant additives including tribofilm formation, micro-bearing effect, self-repair performance, and synergistic effect. In addition, the challenges and prospects of nanolubricant additives are proposed, which guides the design and synthesis of novel additives with significant lubrication and antiwear properties in the future.

2020 ◽  
Vol 3 (1) ◽  
pp. 248-258
Author(s):  
Vladimir V. Shmat

The article notes the need for the transition of the resource sector of the Russian economy to an innovative development path and shows the potential for this. Some results of constructing a scenario forecast of the Russian economy development using the expert-statistical Bayesian method are presented. The peculiarity of the method: it is based on expert estimates and allows you to make forecasts in conditions of severe uncertainty. A predictive assessment of the resource sector impact on innovation in Russia in the period until 2030-2035 was made in the framework of the study. According to experts, the existing potential will not be fully utilized. Insufficient participation of the resource sector in the national innovation process is projected; attraction to import is the most likely. This reflects the general trend of the forecasted scientific and technological development of a country with a “sluggish” innovation market: insufficient supply, insufficient demand and the weak mechanism of the relationship between the first and second.


2006 ◽  
Vol 36 (2) ◽  
pp. 329-341
Author(s):  
MARCELO BAUMANN BURGOS

ABSTRACT The National Synchrotron Light Laboratory (LNLS) is one of the ten institutes linked to the National Council for Scientific and Technological Development (CNPq) and one of the most important investments made in the last two decades by the Brazilian federal government in civil Science and Technology (S&T). The issue I address involves the understanding of how the Synchrotron Project materializes. Such objective implies revisiting the long negotiation process, which lasts through two political regimes and five different governments; and which faced resistance even from scientists and researchers My hypothesis is that the institutionalization of the Synchrotron Project becomes viable thanks to a process that goes from the permeability of the LNLS negotiation process to the imposed transformations by the transition to the democratic regime.


2018 ◽  
Vol 2 (2) ◽  
pp. 21
Author(s):  
Alvaro Cristian Sánchez Mercado

Throughout history the development of the countries has been generated mainly by the impulse in two complementary axes: Science and Technology, and Trade. At present we are experiencing an exponential scientific and technological development and the Economy in all its fronts is driven by the intensive application of technology. According to these considerations, this research tries to expose the development of Innovation Management as a transversal mechanism to promote the different socioeconomic areas and especially those supported by engineering. To this end, use will be made of Technology Watch in order to identify the advances of the main research centres related to innovation in the world. Next, there will be an evaluation of the main models of Innovation Management and related methodologies that expose some of the existing Innovation Observatories in the world to finally make a proposal for Innovation Management applicable to the reality of Peru, so that it can be taken into consideration by stakeholders (Government, Academy, Business and Civil Society) committed to Innovation Management in the country


2018 ◽  
pp. 11-24
Author(s):  
Leonid Fituni

The author presents a vision of the mainstream vectors of global development against the backdrop of the “Grand Challenges” of the 21st century. He formulates optimal ways for Russia and Africa to interact in order to achieve the goals set by the UN Third International Conference on Financing for Development. The author proposes a RUSAFRICA project, which combines a dual goal of boosting economic, social and technological development of both Russia and Africa. The project envisages an integrated cooperative approach to mutually significant economic, technological and infrastructural requirements and capacities while prioritizing the human development aspect. Innovative approaches to mutual cooperation shale open ways to promoting Russian technologies and innovative products to new markets, generating growth of income from exports of high technology products and services with the aim to enhance Russia’s influence and competitive strengths, in accordance with the Scientific and Technological Development Strategy of the Russian Federation.


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