Results 31 to 40 of about 105,637 (204)

Hardening of gear teeth depending on the concentration of abrasive particles in the transmission oil [PDF]

BIO Web of Conferences
The article deals with the issues of determining the life and limiting concentration of abrasive particles in the oil of transmission units, depending on the type of hardening of gear teeth.
Mirzakhodjaev Sherzodkhuja, Allanazarov Madraxim, Ishmuratov Khikmat   +2 more
doaj   +1 more source

THE STUDY OF CHEMICAL COMPOSITION AND EVALUATION OF GROUNDWATER QUALITY IN SOME REGIONS OF MOLDOVA [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2012
The paper presents the results of groundwater study from different sources, selected in v. Myndreshty, Telenesti district, in various villages of Cahul district and in artesian wells in and around Chisinau.
T. Mitina, N. Bondarenco, O. Bunciuc
doaj  

Boron Removal by Adsorption onto Different Oxides

Journal of Engineering, 2023
A research was conducted to determine the feasibility of using adsorption process to remove boron from aqueous solutions using batch technique. Three adsorbent materials; magnesium, aluminum and iron oxide were investigated to find their abilities for ...
Abbas, H. Sulaymoon, Saadi, K. Al-Naseri, Ibtihal, A.Jabbar, A. Qader   +2 more
doaj   +1 more source

The research of the stress-strain state with local thinning in pipelines and determination of allowable values of concentration stress and strain

Structural Mechanics of Engineering Constructions and Buildings, 2019
Relevance. The nuclear power plant contains a large number of equipment and pipelines subject to flow acceleration corrosion. As a result of a combination of various parameters - sizes (diameters, wall thickness), operational parameters (internal ...
Dmitry A. Kuzmin, Anastasia V. Andreenkova   +1 more
doaj   +1 more source

Elevated CO₂ does not increase eucalypt forest productivity on a low-phosphorus soil [PDF]

, 2017
Rising atmospheric CO2 stimulates photosynthesis and productivity of forests, offsetting CO2 emissions. Elevated CO2 experiments in temperate planted forests yielded ~23% increases in productivity over the initial years.
AC Finzi, AN Gherlenda, B Sakschewski, BE Medlyn, C Körner, D Schimel, DS Goll, EJ Edwards, EVJ Tanner, GB Bonan, H Lambers, JE Drake, JJ Elser, JQ Chambers, KI Paul, KY Crous, MA de Graaff, ML McCormack, P Friedlingstein, P Friedlingstein, PB Reich, PM Cox, Q Zhang, R Oren, RA Duursma, RJ Norby, RS Nowak, S Sitch, SC Reed, SI Seneviratne, SL Piao, TE Gimeno, VK Arora, YD Pan   +33 more
core   +3 more sources

Cadmium concentrations in Idaho wheat grain and soil

Agrosystems, Geosciences & Environment, 2022
Current efforts to reduce the maximum allowable cadmium (Cd) concentrations in wheat (Triticum aestivum L.) for at‐risk populations such as infants require sourcing wheat with low concentrations of Cd.
Daniel G. Strawn, Dinithi Mohotti, Elizabeth Carp, Xi Liang, Jianli Chen, Kurtis Schroeder, Juliet Marshall   +6 more
doaj   +1 more source

Metal contamination of soils and crops affected by the Chenzhou lead/zinc mine spill (Hunan, China) [PDF]

, 2005
In 1985, the collapse of the tailing dam in Chenzhou lead/zinc mine (Hunan, southern China) led to the spread of mining waste spills on the farmland along the Dong River.
Liao, Bo-han, Liu, Hongyu, Probst, Anne
core   +2 more sources

Analysis of potentially toxic contaminants in milk powder

Journal of Mind and Medical Sciences, 2021
The aim of this study was to identify potentially toxic contaminants in milk powder. Powdered milk contains a range of toxic and non-toxic substances that are present in a wide variety, also having very different origins.
Magdalena Mititelu, Lucian Hîncu, Emma Adriana Ozon, Daniela Luiza Baconi, Ioana Paunica, Oana Denisa Bălălău   +5 more
doaj   +1 more source

Safe design and operation of tank reactors for multiple-reaction networks: uniqueness and multiplicity [PDF]

, 1989
A method is developed to design a tank reactor in which a network of reactions is carried out. The network is a combination of parallel and consecutive reactions. The method ensures unique operation.
Westerink, E.J., Westerterp, K.R.
core   +3 more sources

Assessing the level of heavy metals concentration in soil around transformer at Akoko community of OndoState, Nigeria

Journal of Applied Sciences and Environmental Management, 2021
Some heavy metals have bio-importance as trace elements but the bio-toxic effects of many of them in human biochemistry are of great concern. The level of heavy metals concentrations of transformer oil polluted soil was assessed in Akungba Akoko ...
R. Ogunlana, A.I. Korode, Z.F. Ajibade
doaj   +1 more source