Results 121 to 130 of about 29,331,473 (379)

Combining combing and secondary ion mass spectrometry to study DNA on chips using 13C and 15N labeling [version 1; referees: 2 approved]

open access: yesF1000Research, 2016
Dynamic secondary ion mass spectrometry (D-SIMS) imaging of combed DNA – the combing, imaging by SIMS or CIS method – has been developed previously using a standard NanoSIMS 50 to reveal, on the 50 nm scale, individual DNA fibers labeled with different ...
Armelle Cabin-Flaman   +11 more
doaj   +1 more source

Alkali Ion‐Incorporated HfO2 Dielectrics for Reconfigurable Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
This work presents an indium gallium zinc oxide (IGZO) transistor with an alkali cation‐integrated hafnium dioxide (HfO2) dielectric exhibiting synaptic behavior via ion retention. The solution‐based film fabrication strategy overcomes the limitations of atomic layer deposition (ALD) and precursor coating, enabling the control of synaptic retention ...
Seung Yeon Ki   +7 more
wiley   +1 more source

Study on the Analysis of Uranium-in Rat Hair by Secondary Ion Mass Spectrometry

open access: yesJournal of Isotopes, 2021
Hair samples, as a non-invasive biological material, it is gradually gaining attention in the fields of nuclear forensics, environmental monitoring, occupational exposure detection, and medicine due to its certain accumulation effect on human trace ...
HU Ruixuan;SHEN Yan;LI Lili;HUANG Shenghui;ZHAO Lifei;ZHAO Yonggang
doaj  

Analysis of Nucleosides and Amino Acids in Different Parts of Lindera aggregata (Sims) Kosterm. from Different Habitats by UFLC-QTrap-MS/MS Combined with Multivariate Statistical Analysis [PDF]

open access: yesZhipu Xuebao
A method of ultra-fast liquid chromatography-triple quadrupole/linear ion trap tandem mass spectrometry (UFLC-QTrap-MS/MS) was established for simultaneous determination of 11 nucleosides and 14 amino acids in Lindera aggregata (Sims) Kosterm., which ...
LUO Yi-yuan1, GU Hai-yan2, XIE Ye-fei1, JIANG Xin-miao1, WANG Juan1, CAI Hong-die1, MA Shu-wei1, CHEN Hong-jiang1
doaj   +1 more source

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner   +9 more
wiley   +1 more source

Geochemical characteristics of titanite and U-Pb age of garnet from mineral mines of the Southern Urals

open access: yesЗаписки Горного института
Mineralogical-geochemical (SIMS method) study of titanite and geochronological (ID-TIMS method) study of garnets from mineral mines of the Southern Urals has been carried out. The mineral associations containing titanite belong to four contrasting types:
Vladislav S. Stativko   +4 more
doaj  

Determination of the Distribution of Uranium in Glass Solidified Samples by Secondary Ionization Mass Spectrometry

open access: yesYankuang ceshi, 2016
Glass solidification is a common method for curing highly radioactive waste liquid. This method has the advantages of high resistance to chemical corrosion, and good radiation, thermal, and mechanical stability.
XIE Wei-yi   +3 more
doaj   +1 more source

Overcoming the Stability Issue for Hydrophobic Hole Transporting Layers Utilized in Tin‐Lead Perovskite and Tandem Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
A non‐annealed process is developed for non‐PEDOT:PSS inverted tin‐lead perovskite solar cells to attain PCE 22.67% for the PTAA‐based device. When PTAA is applied in an all‐perovskite tandem solar cell, a record efficiency of 28.14% is obtained with great stability for the efficiency maintaining 96% of its original value for 500 h under one‐sun ...
Chun‐Hsiao Kuan   +12 more
wiley   +1 more source

Modern application and prospects of the stable isotopes  method for studying avian influenza A virus transmission   in migratory birds

open access: yesЮг России: экология, развитие, 2019
Aim. The circulation and transmission of pathogens is a global biological phenomenon that is closely associated with bird migration. This analysis was carried out with  the aim of understanding and assessing the prospects of using the stable isotope ...
O. R. Druzyaka   +4 more
doaj   +1 more source

Determination of mass of IGR J17091-3624 from "Spectro-Temporal" variations during onset-phase of the 2011 outburst

open access: yes, 2015
The 2011 outburst of the black hole candidate IGR J17091-3624 followed the canonical track of state transitions along with the evolution of Quasi-Periodic Oscillation (QPO) frequencies before it began exhibiting various variability classes similar to GRS
Iyer, N., Mandal, S., Nandi, A.
core   +1 more source

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