Results 61 to 70 of about 4,509,963 (335)

Degradation effects in sc-Si PV modules subjected to natural and induced ageing after several years of field operation [PDF]

open access: yes, 2012
This paper presents ageing effects observed in sc-Si PV modules operating in field conditions for 18 and over 22 years. The effects of both natural ageing processes and induced ageing by external agents, causing partial or total shading of cells for a ...
Kaplani, E.
core  

Monopoly quality degradation and regulation in cable television [PDF]

open access: yes, 2007
Using an empirical framework based on the Mussa-Rosen model of monopoly quality choice, we calculate the degree of quality degradation in cable television markets and the impact of regulation on those choices.
Crawford, Gregory S., Shum, Matthew
core   +3 more sources

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Effects of gravel on the water infiltration process and hydraulic parameters of stony soil in the eastern foothills of Helan Mountain, China

open access: yesScientific Reports
The investigation into the impact of gravel on water infiltration process and hydraulic parameters in stony soil could offer a theoretical basis to enhance water availability in rocky mountain area.
Yan Ma   +6 more
doaj   +1 more source

Structure Characterization and Electrical Properties of Sn0.9Ga0.1P2O7/KH2PO4/KPO3 Composite Electrolyte for Medium Temperature Fuel Cells

open access: yesInternational Journal of Electrochemical Science, 2020
In this study, Sn0.9Ga0.1P2O7/KH2PO4/KPO3 was synthesized by solid-phase method. The sample was characterized by Raman spectrometer and X-ray diffractometer.
Yan Han   +5 more
doaj   +1 more source

Statistical modeling, parameter estimation and measurement planning for PV degradation [PDF]

open access: yes, 2017
Photovoltaics (PV) degradation is a key consideration during PV performance evaluation. Accurately predicting power delivery over the course of lifetime of PV is vital to manufacturers and system owners.
Lim, Li Hong Idris   +4 more
core  

Investigation of the Degradation of Chelate Complexes in Liquid Redox Desulfurization Processes [PDF]

open access: yes, 2020
Metal complexes such as Fe‐EDTA, which are used as pseudo‐catalysts or oxygen carriers in wet oxidative desulfurization processes, are subject to a degradation mechanism that significantly influences the economics of such processes. Therefore, this study
Guetta, Zion   +4 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Facile Preparation of Cu2+-doped Tin(IV) Pyrophosphate /Potassium Metaphosphate Composite as a Highly Efficient Electrolyte for Intermediate Temperature SOFCs

open access: yesInternational Journal of Electrochemical Science, 2020
In this study, a Sn0.95Cu0.05P2O7/KPO3 composite ceramic was synthesized via a facile solid state reaction method and characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and Raman spectroscopy.
RuijuanShi   +5 more
doaj   +1 more source

Magnesium and magnesium alloys as degradable metallic biomaterials [PDF]

open access: yes, 2008
Drawbacks associated with permanent metallic implants lead to the search for degradable metallic biomaterials. Magnesium has been considered as it is essential to bodies and has a high biodegradation potential.
Shi, Z. M., Wang, H., Yang, K.
core   +2 more sources

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