150 research outputs found
Synthesis and characterizations of NaFePO4/Na2FePO4Fcathode materials for Na-ION based AQUEOUS battery
Rechargeable Li-ion batteries have dominated the market for twenty years. However,
the increasing demand for energy storage creates new challenges for further use of lithium-ion batteries
mainly due to the problems associated with lithium sources and safety issues [1]. Na-ion based battery is an
appealing alternative with comparable energy density to Li-ion based technologies [2]. Moreover, the fast
ion intercalation/deintercalation in the aqueous electrolyte media could allow for the operations under high
electric current conditions required especially for high power supply and eliminate safety issue [3]
Synthesis and characterizations of NaFePO4/Na2FePO4Fcathode materials for Na-ION based AQUEOUS battery
Rechargeable Li-ion batteries have dominated the market for twenty years. However,
the increasing demand for energy storage creates new challenges for further use of lithium-ion batteries
mainly due to the problems associated with lithium sources and safety issues [1]. Na-ion based battery is an
appealing alternative with comparable energy density to Li-ion based technologies [2]. Moreover, the fast
ion intercalation/deintercalation in the aqueous electrolyte media could allow for the operations under high
electric current conditions required especially for high power supply and eliminate safety issue [3]
Central Bank Money: Liability, Asset, or Equity of the Nation?
Source info: Cornell Legal Studies Research Paper 20-46Source info: Cornell Legal Studies Research Paper 20-46Based on legal arguments, we advocate a conceptual and normative shift in our understanding of the economic character of central bank money (CBM). The widespread treatment of CBM as a central bank liability goes back to the gold standard, and uses analogies with commercial bank balance sheets. However, CBM is sui generis and legally not comparable to commercial bank money. Furthermore, in modern economies, CBM holders cannot demand repayment of CBM in anything other than CBM. CBM is not an asset of central banks either, and it is not central bank shareholder equity because it does not confer the same ownership rights as regular shareholder equity. Based on comparisons across a number of legal characteristics of financial instruments, we suggest that an appropriate characterization of CBM is as ‘social equity’ that confers rights of participation in the economy’s payment system and thereby its economy. This interpretation is important for macroeconomic policy in light of quantitative easing and potential future issuance of central bank digital currency (CBDC). It suggests that in robust economies with credible monetary institutions, and where demand for CBM is sufficiently and sustainably high, large-scale issuance such as under CBDC is not inflationary, and it does not weaken public sector finances
Experimental, Clinical and Morphological Analysis of H-Ras Oncoproteins for Locally Advanced Breast Cancer
BACKGROUND: Activated forms of Ras are enhanced in both breast cancer as well as the cell lines with EGFR and HER2 expression. Therefore, H-Ras could be activated in breast tumours in the absence of direct mutational activation of Ras itself and could contribute to 20-50% of the cases. Expression inhibition, signal transduction interruption from H-Ras to the nucleus could become a promising therapeutic target.
AIM: The aim of this study was to investigate the clinical and morphological criteria of locally advanced breast cancer and the expression of H-Ras oncoprotein in patients who have been subjected to different regimens of farnesyltransferase inhibitor.
METHODS: H-Ras status was assessed by immunohistochemistry (IHC).
RESULTS: An association between the expressions of H-Ras and Her2/neu (p = 0.001) as well as the tumour proliferation index Ki-67 (p = 0.001) in patients with breast cancer was established. Analysis of the relationship between H-Ras expression showed a relatively strong association with progression-free survival both before the treatment (V = 0.47; p = 0.001) and after the treatment (V = 0.45; p = 0.001). These results may indicate the clinical applicability of H-Ras as a prognostic factor or serve as a therapeutic target for breast cancer treatment.
CONCLUSION: These results could indicate the potential clinical application of H-Ras as a prognostic factor or a therapeutic target for breast cancer treatment
Thermodynamic modeling and analysis of the structure of a heat-resistant alloy of the Fe-Cr-Ni system
There has been carried out thermodynamic modeling of phase transformations of the Fe-Cr Ni alloy alloyed with titanium and niobium in order to predict the phase composition and to substantiate the concentration of alloying elements of the experimental alloy for parts of metallurgical equipment. The results of microstructural analysis and phase composition of an experimental heat-resistant alloy are presented
Thermodynamic modeling and analysis of the structure of a heat-resistant alloy of the Fe-Cr-Ni system
There has been carried out thermodynamic modeling of phase transformations of the Fe-Cr Ni alloy alloyed with titanium and niobium in order to predict the phase composition and to substantiate the concentration of alloying elements of the experimental alloy for parts of metallurgical equipment. The results of microstructural analysis and phase composition of an experimental heat-resistant alloy are presented
High energy density ecologically friendly batteries for grid connection of renewable sources and electric vehicles
Aqueous Rechargeable lithium batteries (ARLBs) could be an attractive alternative to
bypass safety issues of lithium-ion batteries with organic electrolyte. Moreover, the fast lithium diffusion in
aqueous electrolyte media could allow for the operations under high electric current conditions required
especially for high power supply [1]. In 1994, J. Dahn et al reported a VO2/LiMn2O4 rechargeable aqueous
battery [2]. However, this type of batteries had serious issues with cyclability. In this work, we report for
the first time on a system comprising in an aqueous electrolyte, and on large-scale ARLB based on this
concept with enhanced cycle performance and energy density
High energy density ecologically friendly batteries for grid connection of renewable sources and electric vehicles
Aqueous Rechargeable lithium batteries (ARLBs) could be an attractive alternative to
bypass safety issues of lithium-ion batteries with organic electrolyte. Moreover, the fast lithium diffusion in
aqueous electrolyte media could allow for the operations under high electric current conditions required
especially for high power supply [1]. In 1994, J. Dahn et al reported a VO2/LiMn2O4 rechargeable aqueous
battery [2]. However, this type of batteries had serious issues with cyclability. In this work, we report for
the first time on a system comprising in an aqueous electrolyte, and on large-scale ARLB based on this
concept with enhanced cycle performance and energy density
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