Results 1 to 10 of about 3,933,827 (279)

Impact of Ag content on device properties of Cu(In,Ga)Se2 solar cells

open access: yesEPJ Photovoltaics, 2022
Partial substitution of Cu by Ag in Cu(In,Ga)Se2 (CIGS) solar cells is advantageous as it allows lower temperature growth while maintaining high performance.
Kanevce Ana   +5 more
doaj   +1 more source

Ageing and vascular ageing [PDF]

open access: yesPostgraduate Medical Journal, 2006
Abstract There is an age related decline in various physiological processes. Vascular ageing is associated with changes in the mechanical and the structural properties of the vascular wall, which leads to the loss of arterial elasticity and reduced arterial compliance.
B, Jani, C, Rajkumar
openaire   +2 more sources

Further investigation on solant–rectenna-based flexible Hilbert-shaped metamaterials

open access: yesIET Nanodielectrics, 2020
This study discusses the design of a low-profile metamaterial-based antenna consisting of a 3 × 5 array of Hilbert shaped unit cells organised as a rectangular patch. The antenna is backed by with a partial ground plane loaded with square electromagnetic
Taha A. Elwi, Sarah G. Abdulqader
doaj   +1 more source

Ag/ZrO2/C flexible nanofiber films-based counter electrode for perovskite solar cells

open access: yesCailiao gongcheng, 2021
Perovskite solar cells(PSCs) are paid much attention due to simple preparation and high photoelectric conversion efficiency. Carbon nanofiber films(CNFs) prepared by electrospinning have high specific surface area, electrical properties and chemical ...
GU Ning-xia   +5 more
doaj   +1 more source

To age or not to age

open access: yesProceedings of the Royal Society of London. Series B: Biological Sciences, 2004
According to the antagonistic pleiotropy theory of ageing, natural selection has favoured genes conferring short-term benefits to the organism at the cost of deterioration in later life. The 'disposable soma' theory expresses this as a life-history strategy in which somatic maintenance is below the level required to prevent ageing, thus enabling higher
Peter D, Sozou, Robert M, Seymour
openaire   +3 more sources

Antifungal Properties of Pure Silver Films with Nanoparticles Induced by Pulsed-Laser Dewetting Process

open access: yesApplied Sciences, 2020
Silver particles were prepared by dewetting Ag films coated on glass using a fiber laser. The size of the particles was controlled in the range of 92 nm−1.2 μm by adjusting the thickness of the Ag film.
Ying-Hong Lin   +4 more
doaj   +1 more source

Properties of Ag-doped mesoporous bioactive glass coatings on 3D printed pure titanium bone scaffolds

open access: yesCailiao gongcheng, 2022
Infection after surgery is one of the common and most challenging clinical problems, and the development of new antibacterial coating is an effective strategy to solve this problem, which has important scientific and social significance.
CHEN Qian   +6 more
doaj   +1 more source

Determination of 14 Trace Elements in Geochemical Samples by ICP-MS Using Kinetic Energy Discrimination Mode

open access: yesYankuang ceshi, 2019
BACKGROUND Traditional inductively coupled plasma-mass spectrometry (ICP-MS) determination of trace elements such as Ag and Cd in geochemical samples is seriously affected by the matrix effect and multiple polyatomic ions, making it difficult to measure ...
XU Jin-li   +6 more
doaj   +1 more source

MARK-AGE biomarkers of ageing [PDF]

open access: yesMechanisms of Ageing and Development, 2015
Many candidate biomarkers of human ageing have been proposed in the scientific literature but in all cases their variability in cross-sectional studies is considerable, and therefore no single measurement has proven to serve a useful marker to determine, on its own, biological age.
Bürkle, Alexander   +29 more
openaire   +8 more sources

Hydrogen Gas Sensing Performances of p-Type Mn3O4 Nanosystems: The Role of Built-in Mn3O4/Ag and Mn3O4/SnO2 Junctions

open access: yesNanomaterials, 2020
Among oxide semiconductors, p-type Mn3O4 systems have been exploited in chemo-resistive sensors for various analytes, but their use in the detection of H2, an important, though flammable, energy vector, has been scarcely investigated.
Lorenzo Bigiani   +6 more
doaj   +1 more source

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