scholarly journals Grand Challenges in Chemical Treatment of Hazardous Pollutants

2021 ◽  
Vol 2 ◽  
Author(s):  
Varsha Srivastava
Author(s):  
O.N. Negreba ◽  
◽  
E.V. Bondarenko ◽  
M.A. Belik ◽  
T.A. Yurina ◽  
...  

The article presents the results of research on modern technologies for weed control in production crops of corn for grain. The best results were obtained in the basic version of technology No. 5 with the following plant protection system: mechanical treatment of crops (cross-row harrowing and three row-to-row cultivation) in combination with chemical treatment with the herbicide Mаister-150 g/ha.


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.


2020 ◽  
pp. 200-204
Author(s):  
Yu.S. Semenova ◽  
A.G. Samul’ ◽  
S.V. Mazhuga

Overview of the research results got by various scientific schools in the field of application of ultrasonic surface hardening is provided. Wide range of opportunities of ultrasonic surface hardening is shown for the application in the preliminary machining of surfaces before thermal and chemical treatment, coating, and also as finishing machining. The effect of the energy of ultrasonic vibrations on structure changes in the material of the surface layer and on surface microrelief on parts performance is considered. The prospects of using of the ultrasonic surface hardening method in combination with other methods of the material modification are presented. In addition the possibilities of reducing the manufacturing cost of product by introducing ultrasonic surface hardening into the technological process are shown.


2017 ◽  
Vol 68 (8) ◽  
pp. 1726-1731
Author(s):  
Nicoleta Mirela Marin ◽  
Luoana Florentina Pascu ◽  
Ioana Stanculescu ◽  
Ovidiu Iordache ◽  
Denisa Jianu ◽  
...  

This paper recommends maize stalk as a cheap natural ion exchanger. Ion exchange equilibrium was studied using thermodynamic and kinetic models. The results showed a high selectivity towards cationic species of antimony (III), molybdenum (VI), lead (II) and arsenium (III). Waste waters and sediments from tailing ponds samples were analysed.


2004 ◽  
Vol 9 (2) ◽  
pp. 121-125 ◽  
Author(s):  
Hyoung-Jun Youm ◽  
Jae-Won Jang ◽  
Kyu-Ri Kim ◽  
Hyo--Jjung Kim ◽  
Eun-Hee Jeon ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document