scholarly journals Effects of ion beams on flash memory cells

2014 ◽  
Vol 29 (2) ◽  
pp. 116-122 ◽  
Author(s):  
Marija Obrenovic ◽  
Djordje Lazarevic ◽  
Edin Dolicanin ◽  
Milos Vujisic
Keyword(s):  
Solar Cells ◽  
Ionizing Radiation ◽  
Flash Memory ◽  
Management System ◽  
Radiation Effects ◽  
Ion Beams ◽  
Space Flights ◽  
Physico Chemical ◽  
High Degree

This paper deals with the flash memory reliability in terms of the ionizing radiation effects. In fact, the reliability of flash memory depends on physico-chemical restrictions of electrostatic nature due to the effects of ionizing radiation. The presented results are actual as a high degree of integrated components miniaturization affects the memory sensitivity, while the role of memories in the solar cells management system for space flights is increasing, so that the effects of ionizing radiation may cause changes in the stored data or the physical destruction of the flash memory components.

scholarly journals Radiation Hardness of Flash Memory Fabricated in Deep-Submicron Technology

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Bojan Cavrić ◽  
Edin Dolićanin ◽  
Predrag Petronijević ◽  
Milić Pejović ◽  
Koviljka Stanković
Keyword(s):  
Ionizing Radiation ◽  
Flash Memory ◽  
Radiation Effects ◽  
Current Problem ◽  
Deep Submicron ◽  
Flash Memories ◽  
Extreme Sensitivity ◽  
Effects Of Radiation ◽  
High Degree ◽  
Good Agreement

This paper discusses the current problem of the electronic memory reliability in terms of the ionizing radiation effects. The topic is actual since the high degree of components' miniaturization integrated into the flash memory causes the extreme sensitivity of this memory type to the ionizing radiation effects. The effects of ionizing radiation may cause changes in stored data, or even the physical destruction of the components. At the end, the experimentally and numerically obtained effects of radiation on specific flash memories are shown and discussed. The results obtained by laboratory and numerical experiments showed good agreement with each other and with the theoretically expected results.

Ionizing radiation effects in copper indium gallium diselenide thin-film solar cells

2002 ◽  
Vol 91 (1) ◽  
pp. 516 ◽  
Author(s):  
J. Tringe ◽  
J. Nocerino ◽  
R. Tallon ◽  
W. Kemp ◽  
W. Shafarman ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Ionizing Radiation ◽  
Radiation Effects ◽  
Thin Film Solar Cells ◽  
Copper Indium Gallium Diselenide ◽  
Copper Indium ◽  
Indium Gallium ◽  
Copper Indium Gallium

Total ionizing radiation effects of 2-T SONOS for 130 nm/4 Mb NOR flash memory technology

2014 ◽  
Vol 57 (6) ◽  
pp. 1-9 ◽  
Author(s):  
FengYing Qiao ◽  
LiYang Pan ◽  
Xiao Yu ◽  
HaoZhi Ma ◽  
Dong Wu ◽  
...  
Keyword(s):  
Ionizing Radiation ◽  
Flash Memory ◽  
Radiation Effects ◽  
Nor Flash

Activation of cytochrome c to a peroxidase compound I-type intermediate by H2O2: relevance to redox signalling in apoptosis

2004 ◽  
Vol 71 ◽  
pp. 97-106 ◽  
Author(s):  
Mark Burkitt ◽  
Clare Jones ◽  
Andrew Lawrence ◽  
Peter Wardman
Keyword(s):  
Cytochrome C ◽  
Hydroxyl Radical ◽  
Redox Regulation ◽  
Chemotherapeutic Agents ◽  
Tyrosyl Radical ◽  
Compound I ◽  
Definitive Evidence ◽  
Enhanced Production ◽  
Physico Chemical

The release of cytochrome c from mitochondria during apoptosis results in the enhanced production of superoxide radicals, which are converted to H2O2 by Mn-superoxide dismutase. We have been concerned with the role of cytochrome c/H2O2 in the induction of oxidative stress during apoptosis. Our initial studies showed that cytochrome c is a potent catalyst of 2′,7′-dichlorofluorescin oxidation, thereby explaining the increased rate of production of the fluorophore 2′,7′-dichlorofluorescein in apoptotic cells. Although it has been speculated that the oxidizing species may be a ferryl-haem intermediate, no definitive evidence for the formation of such a species has been reported. Alternatively, it is possible that the hydroxyl radical may be generated, as seen in the reaction of certain iron chelates with H2O2. By examining the effects of radical scavengers on 2′,7′-dichlorofluorescin oxidation by cytochrome c/H2O2, together with complementary EPR studies, we have demonstrated that the hydroxyl radical is not generated. Our findings point, instead, to the formation of a peroxidase compound I species, with one oxidizing equivalent present as an oxo-ferryl haem intermediate and the other as the tyrosyl radical identified by Barr and colleagues [Barr, Gunther, Deterding, Tomer and Mason (1996) J. Biol. Chem. 271, 15498-15503]. Studies with spin traps indicated that the oxo-ferryl haem is the active oxidant. These findings provide a physico-chemical basis for the redox changes that occur during apoptosis. Excessive changes (possibly catalysed by cytochrome c) may have implications for the redox regulation of cell death, including the sensitivity of tumour cells to chemotherapeutic agents.

THYROID STIMULATORS AND THYROID STIMULATION

1971 ◽  
Vol 66 (3) ◽  
pp. 558-576 ◽  
Author(s):  
Gerald Burke
Keyword(s):  
Regulatory System ◽  
Control Site ◽  
Thyroid Cell ◽  
Primary Control ◽  
Physico Chemical ◽  
Site Of Action ◽  
Long Acting

ABSTRACT A long-acting thyroid stimulator (LATS), distinct from pituitary thyrotrophin (TSH), is found in the serum of some patients with Graves' disease. Despite the marked physico-chemical and immunologic differences between the two stimulators, both in vivo and in vitro studies indicate that LATS and TSH act on the same thyroidal site(s) and that such stimulation does not require penetration of the thyroid cell. Although resorption of colloid and secretion of thyroid hormone are early responses to both TSH and LATS, available evidence reveals no basic metabolic pathway which must be activated by these hormones in order for iodination reactions to occur. Cyclic 3′, 5′-AMP appears to mediate TSH and LATS effects on iodination reactions but the role of this compound in activating thyroidal intermediary metabolism is less clear. Based on the evidence reviewed herein, it is suggested that the primary site of action of thyroid stimulators is at the cell membrane and that beyond the(se) primary control site(s), there exists a multifaceted regulatory system for thyroid hormonogenesis and cell growth.

Energy Management of Electromechanical Systems on the Board of a Ship

2020 ◽  
Vol 26 (3) ◽  
pp. 14-19
Author(s):  
Laurențiu Bogdan Asalomia ◽  
Gheorghe Samoilescu
Keyword(s):  
Energy Management ◽  
Management System ◽  
Integrated Management ◽  
Integrated Management System ◽  
Management Actions ◽  
Energy Flows ◽  
Reduce Emissions ◽  
Technical Solutions ◽  
Productive Time

AbstractThe paper analyzes, starting from the Integrated Management System, the role of automation, the role of the officer and the role of the Energy Management System on board the ship. The implementation of an EnMS establishes the structure and discipline of identifying energy flows, implementing management actions and, finally, applying technical solutions, which significantly reduce energy costs, reduce non-productive time in production, and reduce emissions. of Greenhouse Gases in the environment. The steps to be highlighted in the realization of energy management are analyzed.

ROLE OF RESPONSIBILITY IN THE QUALITY MANAGEMENT SYSTEM

2020 ◽  
Vol 14 (3) ◽  
pp. 805-816
Author(s):  
Zdravko Krivokapić ◽  
◽  
Miladin Stefanović
Keyword(s):  
Quality Management ◽  
Management System ◽  
Quality Management System
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