Results 11 to 20 of about 783,437 (120)

AFM studies of DNA structures extracted from adriamycin treated and non-treated Erlich tumor cells [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Atomic force microscopy (AFM), a unique tool to investigate drug treatment of cancer cells, was used to analyze the anti-neoplastic activity of adriamycin by comparing DNA structures of non-treated and adriamycin-treated Ehrlich tumor cells.
Avramov-Ivić M.   +8 more
doaj   +1 more source

Vertical Characteristics of Pollution Transport in Hong Kong and Beijing, China

open access: yesAtmosphere, 2021
Transported pollution plays an important role in the atmospheric environment of eastern China. This study analyzed the characteristics of surface winds at different air quality levels using meteorological station observations of both wind and mass ...
Xin Yang   +8 more
doaj   +1 more source

Electron Beam-Induced Immobilization of Laccase on Porous Supports for Waste Water Treatment Applications

open access: yesMolecules, 2014
The versatile oxidase enzyme laccase was immobilized on porous supports such as polymer membranes and cryogels with a view of using such biocatalysts in bioreactors aiming at the degradation of environmental pollutants in wastewater.
Elham Jahangiri   +5 more
doaj   +1 more source

Characteristics of diamond turned NiP smoothed with ion beam planarization technique

open access: yesJournal of the European Optical Society-Rapid Publications, 2017
Background Diamond turning is widely used in machining metals and semiconductors but the turning marks are incurred on machined components due to the mechanics of the technology.
Yaguo Li, Hideo Takino, Frank Frost
doaj   +1 more source

Composition formulas of solid-solution alloys derived from chemical-short-range orders

open access: yesScientific Reports, 2022
Solid solutions are the basis for most industrial alloys. However, the relationships between their characteristic short-range orders and chemical compositions have not been established.
Zhuang Li   +5 more
doaj   +1 more source

The Dynamical Behavior of the s-Trioxane Radical Cation—A Low-Temperature EPR and Theoretical Study

open access: yesMolecules, 2014
The radical cation of s-trioxane, radiolytically generated in a freon (CF3CCl3) matrix, was studied in the 10–140 K temperature region. Reversible changes of the EPR spectra were observed, arising from both ring puckering and ring inversion through the ...
Sergej S. Naumov   +4 more
doaj   +1 more source

Synthesis and characterization of new photoswitchable azobenzene-containing poly(ε-caprolactones)† [PDF]

open access: yesRSC Advances, 2016
A novel and efficient strategy in obtaining series of mono- and bi-armed azobenzene-containing poly(ε-caprolactone)s is described, starting from a commercially available azobenzene dye via azide/alkyne-“click”-reactions.
Clement Appiah   +4 more
doaj   +1 more source

COVID‐19 Pandemic Reveals Distinct Impact of Aerosols on Surface Solar Radiation in China

open access: yesGeophysical Research Letters, 2023
With the abrupt and significant drop of PM2.5 concentrations during the lockdown in 2020, hourly direct radiation (Rdir) at surface substantially increased in East China, such as Zhengzhou, Wuhan and Baoshan, with the maximum enhancement of 86% at Wuhan.
Xin Yang   +5 more
doaj   +1 more source

Modification of the Surface of 40 Kh Steel by Electrolytic Plasma Hardening

open access: yesMetals, 2022
The high-strength, medium-carbon alloy construction steel 40 Kh is commonly used in the manufacture of tools and machine parts. This paper experimentally investigates the effect of electrolytic plasma thermocyclic hardening on the surface hardening and ...
Zhuldyz Sagdoldina   +6 more
doaj   +1 more source

Electrochemical Behavior of Cr-Mo Steel Alloy in High Temperature Aqueous Sodium Chloride Solution

open access: yesInternational Journal of Electrochemical Science, 2006
The electrochemical behavior of a low alloy steel (Fe-2.25 Cr-1Mo) was investigated in 1 m NaCl over a range of temperatures (75-2500C) with various levels of contaminations with CuCl2.
Fathy.M. Bayoumi   +2 more
doaj   +1 more source

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