Results 31 to 40 of about 105,583 (339)
Hardening of gear teeth depending on the concentration of abrasive particles in the transmission oil [PDF]
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 +2 more
doaj +1 more source
THE STUDY OF CHEMICAL COMPOSITION AND EVALUATION OF GROUNDWATER QUALITY IN SOME REGIONS OF MOLDOVA [PDF]
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
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 +2 more
doaj +1 more source
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 +1 more
doaj +1 more source
Cadmium concentrations in Idaho wheat grain and soil
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 +6 more
doaj +1 more source
Metal contamination of soils and crops affected by the Chenzhou lead/zinc mine spill (Hunan, China) [PDF]
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
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
Elevated CO2 does not increase eucalypt forest productivity on a low-phosphorus soil [PDF]
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 +33 more
core +3 more sources
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
Study of Metal Contaminant Level in the Mahakam Delta: Sediment and Dissolved Metal Perspectives [PDF]
The Mahakam Delta in East Kalimantan contains large number of natural resources specially hydrocarbon sources. Anthropogenic activities have influenced this ecosystem for many years.
Budiyanto, F. (Fitri) +1 more
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