Apparatus for complex thermophysical studies of liquids at high state parameters in the monotonic heating regime

1977 ◽  
Vol 32 (5) ◽  
pp. 532-539 ◽  
Author(s):  
R. A. Mustafaev
Keyword(s):  
Heating Regime ◽  
High State ◽  
Monotonic Heating

Observations of the SW Sextantis Star BH Lyncis in a High State

1997 ◽  
Vol 481 (1) ◽  
pp. 433-446 ◽  
Author(s):  
D. W. Hoard ◽  
Paula Szkody
Keyword(s):  
High State

scholarly journals Post-Fire Susceptibility to Brittle Fracture of Selected Steel Grades Used in Construction Industry—Assessment Based on the Instrumented Impact Test

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3922
Author(s):  
Mariusz Maslak ◽  
Michal Pazdanowski ◽  
Marek Stankiewicz ◽  
Paulina Zajdel
Keyword(s):  
Charpy Impact ◽  
Water Mist ◽  
Heating Regime ◽  
Building Structures ◽  
Initial State ◽  
Slow Cooling ◽  
Natural Fire ◽  
Development Scenarios ◽  
Steel Grades ◽  
Fire Conditions

The change in the value of the breaking energy is discussed here for selected steel grades used in building structures after subjecting the samples made of them to episodes of heating in the steady-state heating regime and then cooling in simulated fire conditions. These changes were recorded based on the instrumented Charpy impact tests, in relation to the material initial state. The S355J2+N, 1H18N9T steels and also X2CrNiMoN22-5-3 duplex steel were selected for detailed analysis. The fire conditions were modelled experimentally by heating the samples and then keeping them for a specified time at a constant temperature of: 600 °C (first series) and 800 °C (second series), respectively. Two alternative cooling variants were investigated in the experiment: slow cooling of the samples in the furnace, simulating the natural fire progress, without any external extinguishing action and cooling in water mist simulating an extinguishing action by a fire brigade. The temperature of the tested samples was set at the level of −20 °C and alternatively at the level of +20 °C. The conducted analysis is aimed at assessing the risk of sudden, catastrophic fracture of load-bearing structure made of steel degraded as a result of a fire that occurred previously with different development scenarios.

scholarly journals MULTIWAVELENGTH VARIABILITY OF THE BLAZARS Mrk 421 AND 3C 454.3 IN THE HIGH STATE

2011 ◽  
Vol 143 (1) ◽  
pp. 23 ◽  
Author(s):  
Haritma Gaur ◽  
Alok C. Gupta ◽  
Paul J. Wiita
Keyword(s):  
High State ◽  
Multiwavelength Variability

scholarly journals State anxiety influences P300 and P600 event-related potentials over parietal regions in the hollow-mask illusion experiment

2021 ◽  
Vol 4 ◽  
Author(s):  
Vasileios Ioakeimidis ◽  
Nareg Khachatoorian ◽  
Corinna Haenschel ◽  
Thomas A. Papathomas ◽  
Attila Farkas ◽  
...  
Keyword(s):  
State Anxiety ◽  
Event Related Potentials ◽  
Memory Representation ◽  
High State ◽  
Opposite Pattern ◽  
Active Representation ◽  
Attentional Resources ◽  
Related Potentials ◽  
Memory Representations ◽  
Healthy Participants

Abstract The hollow-mask illusion is an optical illusion where a concave face is perceived as convex. It has been demonstrated that individuals with schizophrenia and anxiety are less susceptible to the illusion than controls. Previous research has shown that the P300 and P600 event-related potentials (ERPs) are affected in individuals with schizophrenia. Here, we examined whether individual differences in neuroticism and anxiety scores, traits that have been suggested to be risk factors for schizophrenia and anxiety disorders, affect ERPs of healthy participants while they view concave faces. Our results confirm that the participants were susceptible to the illusion, misperceiving concave faces as convex. We additionally demonstrate significant interactions of the concave condition with state anxiety in central and parietal electrodes for P300 and parietal areas for P600, but not with neuroticism and trait anxiety. The state anxiety interactions were driven by low-state anxiety participants showing lower amplitudes for concave faces compared to convex. The P300 and P600 amplitudes were smaller when a concave face activated a convex face memory representation, since the stimulus did not match the active representation. The opposite pattern was evident in high-state anxiety participants in regard to state anxiety interaction and the hollow-mask illusion, demonstrating larger P300 and P600 amplitudes to concave faces suggesting impaired late information processing in this group. This could be explained by impaired allocation of attentional resources in high-state anxiety leading to hyperarousal to concave faces that are unexpected mismatches to standard memory representations, as opposed to expected convex faces.

DC-AC hybrid rapid heating method for lithium-ion batteries at high state of charge operated from low temperatures

Energy ◽  
2022 ◽  
Vol 238 ◽  
pp. 121809
Author(s):  
Shanshan Guo ◽  
Ruixin Yang ◽  
Weixiang Shen ◽  
Yongsheng Liu ◽  
Shenggang Guo
Keyword(s):  
Lithium Ion Batteries ◽  
Low Temperatures ◽  
Rapid Heating ◽  
Lithium Ion ◽  
State Of Charge ◽  
High State ◽  
Heating Method

scholarly journals Observations of three high-state eclipse egresses of Hercules X-1

1988 ◽  
Vol 231 (1) ◽  
pp. 69-84 ◽  
Author(s):  
C. S. R. Day ◽  
A. F. Tennant ◽  
A. C. Fabian
Keyword(s):  
High State

scholarly journals Detectability of Delamination in Concrete Structure Using Active Infrared Thermography in Terms of Signal-to-Noise Ratio

2018 ◽  
Vol 8 (10) ◽  
pp. 1986 ◽  
Author(s):  
Jungwon Huh ◽  
Van Mac ◽  
Quang Tran ◽  
Ki-Yeol Lee ◽  
Jong-In Lee ◽  
...  
Keyword(s):  
Concrete Structure ◽  
Signal To Noise Ratio ◽  
High Reliability ◽  
Heating Time ◽  
Observation Time ◽  
Percentage Error ◽  
Heating Regime ◽  
Signal To Noise ◽  
Noise Ratio ◽  
Whole Life Cycle

Detecting subsurface delamination is a difficult and vital task to maintain the durability and serviceability of concrete structure for its whole life cycle. The aim of this work was to obtain better knowledge of the effect of depth, heating time, and rebar on the detectability capacity of delamination. Experimental tests were carried out on a concrete specimen in the laboratory using Long Pulsed Thermography (LPT). Six halogen lamps and a long wavelength infrared camera with a focal plane array of 640 × 480 pixels were used as the heat source and infrared detector, respectively. The study focused on the embedded imitation delaminations with the size of 10 cm × 10 cm × 1 cm, located at depths varying from 1 to 8 cm. The signal-to-noise ratio (SNR) was applied as a criterion to assess the detectability of delamination. The results of this study indicate that as the provided heating time climbed, the SNR increased, and the defect could be identified more clearly. On the other hand, when using the same heating regime, a shallow delamination displayed a higher SNR than a deeper one. The moderate fall of the SNR in the case of imitating defect located below reinforced steel was also observed. The absolute contrast was monitored to determine the observation time, and the nondimensional prefactor k was empirically proposed to predict the depth of delamination. The mean absolute percentage error (MAPE) was used to quantitatively evaluate the difference between forecasted and real depth, which evaluation confirmed the high reliability of the estimated value of the prefactor k.

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