On the Thermomagnetic Gas Torque for Collinear Static and Alternating Magnetic Fields

1970 ◽  
Vol 25 (10) ◽  
pp. 1367-1369
Author(s):  
S. Hess ◽  
L. Waldmann
Keyword(s):  
Experimental Data ◽  
Magnetic Fields ◽  
Kinetic Theory ◽  
Qualitative Agreement ◽  
Quantitative Agreement ◽  
Good Qualitative Agreement ◽  
Thermal Pressure ◽  
Alternating Magnetic Fields

Abstract Results obtained within the framework of kinetic theory are presented for the part of the thermo-magnetic gas torque which stems from the thermal pressure and is associated with the influence of the magnetic fields on the viscosity (Senftleben-Beenakker effect). Good qualitative agreement and a quantitative agreement within a factor of roughly 1.5 are found between the theory and the experimental data of Smith and Scott [1969].

Modeling of Martensite Accommodation Effect on Mechanical Behavior of Shape Memory Alloys

1999 ◽  
Vol 121 (1) ◽  
pp. 102-104 ◽  
Author(s):  
M. E. Evard ◽  
A. E. Volkov
Keyword(s):  
Experimental Data ◽  
Plastic Deformation ◽  
Shape Memory Alloys ◽  
Mechanical Behavior ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Qualitative Agreement ◽  
Strain Accumulation ◽  
Good Qualitative Agreement

An approach has been presented to account for micro-plastic deformation and stress produced by accommodation of martensite. This has made it possible to describe such phenomena as incomplete recovery of strain, strain accumulation at thermocycling, and repeated two-way shape memory effect. Results of modeling are in good qualitative agreement with experimental data.

scholarly journals Measurement and prediction of binary mixture flash point

2013 ◽  
Vol 11 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Mariana Hristova
Keyword(s):  
Experimental Data ◽  
Binary Mixture ◽  
Binary Mixtures ◽  
Qualitative Agreement ◽  
Flash Point ◽  
Wilson Equation ◽  
Good Qualitative Agreement ◽  
Raoult’S Law ◽  
Raoult's Law

AbstractThe flash points of three binary mixtures, containing n-heptane, o-xylene, m-xylene and ethylbenzene, were measured by Pensky-Martens closed cup tester. The experimental data were compared with the calculated values using Liaw’s Model with the application of Raoult’s Law and Wilson equation. These equations were in good qualitative agreement.

Ring strain and the negative pole. III. Strained rings as auxochromes

1970 ◽  
Vol 23 (5) ◽  
pp. 971
Author(s):  
IJ Miller
Keyword(s):  
Electric Charge ◽  
Qualitative Agreement ◽  
Quantitative Agreement ◽  
Hypsochromic Shift ◽  
Good Qualitative Agreement ◽  
Ring Strain ◽  
Negative Pole

From theory developed in Part 2 it is shown that saturated strained rings should have marked effects on electronic spectral transitions, generally producing bathochromic shifts, unless the transition involves migration of electric charge towards the ring, in which case a hypsochromic shift is produced. Experimental observations are in good qualitative agreement with this theory, and when simple calculations are possible, in reasonable quantitative agreement.

scholarly journals Monte Carlo Calculation of Fragment Distributions in Nuclear Reactions

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
A. Deppman ◽  
E. Andrade-II ◽  
P. C. R. Rossi ◽  
F. Garcia ◽  
J. R. Maiorino
Keyword(s):  
Experimental Data ◽  
Monte Carlo ◽  
Qualitative Agreement ◽  
Nuclear Reactions ◽  
Monte Carlo Calculation ◽  
High Energy ◽  
Fission Reactions ◽  
Good Qualitative Agreement ◽  
Driven Systems ◽  
Mc Method

The fragments produced in nuclear reactions for accelarator driven systems (ADS) operation form elements that can have effects on the structure of the reactor. In this regard, the calculation of fragment distributions gives important information for the development of ADS. To obtain those distributions, the Monte Carlo (MC) method is an important tool, and in this work we describe calculations of fragment distributions through a MC code for reactions initiated by intermediate- and high-energy protons and photons on actinide and preactinide nuclei. We study the production of fragments through spallation and fission reactions. The results show good qualitative agreement with experimental data.

scholarly journals Advancing drops on curved and flat surfaces

2019 ◽  
Vol 11 (4) ◽  
pp. 223-226
Author(s):  
Claudiu PATRASCU ◽  
Ioana RASUCEANU ◽  
Corneliu BALAN
Keyword(s):  
Experimental Data ◽  
Theoretical Model ◽  
Qualitative Agreement ◽  
Immiscible Liquid ◽  
Solid Surfaces ◽  
Good Qualitative Agreement ◽  
Hydrophobic Surfaces ◽  
Flat Surfaces ◽  
Theoretical Predictions ◽  
Inclined Planes

The paper is concerned with the dynamics of advancing liquid blobs of fluid on curved and flat solid surfaces, such as cycloids and inclined planes. We investigate the kinematics of such blobs on hydrophobic surfaces with emphasis on the shape of the interface as the fluid advances. A theoretical model is proposed that captures the shape of the interface at early times. Also, the trajectory of the fluid, as it detaches from the cycloid, is investigated and compared with theoretical predictions. We find a good qualitative agreement between predictions and experimental data. As an extension of the present findings, we also investigate the shape and the dynamics of advancing drops on cycloids, placed in a viscous outer immiscible liquid. We find both similarities, in terms of kinematics, and specific differences in the shape of the advancing drop.

A Theoretical Investigation of Pressure Depression in Externally Pressurized Gas-Lubricated Circular Thrust Bearings

1961 ◽  
Vol 83 (2) ◽  
pp. 201-208 ◽  
Author(s):  
Haruo Mori
Keyword(s):  
Experimental Data ◽  
Mathematical Model ◽  
Shock Wave ◽  
Qualitative Agreement ◽  
Load Capacity ◽  
Pressure Profile ◽  
Theoretical Explanation ◽  
Good Qualitative Agreement ◽  
Thrust Bearings ◽  
Approximate Mathematical Model

A theoretical explanation of the experimentally observed depression of the pressure profile in externally pressurized gas-lubricated circular thrust bearings is presented, based on a concept new to gas lubrication, that of the generation of a shock wave in the bearing clearance space. On the basis of an approximate mathematical model, the bearing pressure distribution and load capacity are determined, and the effects of several bearing parameters are discussed. Good qualitative agreement is found between the analytical results and available experimental data.

Measuring Magnetic Permeability of Monolithic Annular Measures in Alternating Magnetic Fields

2019 ◽  
Vol 55 (11) ◽  
pp. 851-857 ◽  
Author(s):  
V. A. Syas’ko ◽  
S. S. Golubev ◽  
Ya. G. Smorodinskii ◽  
P. V. Solomenchuk ◽  
E. B. Bryukhovetskaya
Keyword(s):  
Magnetic Fields ◽  
Magnetic Permeability ◽  
Alternating Magnetic Fields

scholarly journals Inactivation of Bacteria Using Bioactive Nanoparticles and Alternating Magnetic Fields

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 342
Author(s):  
Vitalij Novickij ◽  
Ramunė Stanevičienė ◽  
Rūta Gruškienė ◽  
Kazimieras Badokas ◽  
Juliana Lukša ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Foodborne Pathogens ◽  
Morphological Changes ◽  
Foodborne Pathogen ◽  
Cellular Damage ◽  
Suitable Model ◽  
Log Reduction ◽  
Invasive Infections ◽  
Alternating Magnetic Fields ◽  
Inactivation Of Bacteria

Foodborne pathogens are frequently associated with risks and outbreaks of many diseases; therefore, food safety and processing remain a priority to control and minimize these risks. In this work, nisin-loaded magnetic nanoparticles were used and activated by alternating 10 and 125 mT (peak to peak) magnetic fields (AMFs) for biocontrol of bacteria Listeria innocua, a suitable model to study the inactivation of common foodborne pathogen L. monocytogenes. It was shown that L. innocua features high resistance to nisin-based bioactive nanoparticles, however, application of AMFs (15 and 30 min exposure) significantly potentiates the treatment resulting in considerable log reduction of viable cells. The morphological changes and the resulting cellular damage, which was induced by the synergistic treatment, was confirmed using scanning electron microscopy. The thermal effects were also estimated in the study. The results are useful for the development of new methods for treatment of the drug-resistant foodborne pathogens to minimize the risks of invasive infections. The proposed methodology is a contactless alternative to the currently established pulsed-electric field-based treatment in food processing.

scholarly journals Formation of transient high-β plasmas in a magnetized, weakly collisional regime

2021 ◽  
Vol 87 (1) ◽  
Author(s):  
T. Byvank ◽  
D. A. Endrizzi ◽  
C. B. Forest ◽  
S. J. Langendorf ◽  
K. J. McCollam ◽  
...  
Keyword(s):  
Experimental Data ◽  
Magnetic Flux ◽  
Plasma Physics ◽  
System Size ◽  
Magnetic Pressure ◽  
Magnetized Plasma ◽  
Inertial Fusion ◽  
Thermal Pressure ◽  
Astrophysical Objects ◽  
Collisional Regime

We present experimental data providing evidence for the formation of transient ( ${\sim }20\ \mathrm {\mu }\textrm {s}$ ) plasmas that are simultaneously weakly magnetized (i.e. Hall magnetization parameter $\omega \tau > 1$ ) and dominated by thermal pressure (i.e. ratio of thermal-to-magnetic pressure $\beta > 1$ ). Particle collisional mean free paths are an appreciable fraction of the overall system size. These plasmas are formed via the head-on merging of two plasmas launched by magnetized coaxial guns. The ratio $\lambda _{\textrm {gun}}=\mu _0 I_{\textrm {gun}}/\psi _{\textrm {gun}}$ of gun current $I_{\textrm {gun}}$ to applied magnetic flux $\psi _{\textrm {gun}}$ is an experimental knob for exploring the parameter space of $\beta$ and $\omega \tau$ . These experiments were conducted on the Big Red Ball at the Wisconsin Plasma Physics Laboratory. The transient formation of such plasmas can potentially open up new regimes for the laboratory study of weakly collisional, magnetized, high- $\beta$ plasma physics; processes relevant to astrophysical objects and phenomena; and novel magnetized plasma targets for magneto-inertial fusion.

A New Dynamic Wettability-Alteration Model for Oil-Wet Cores During Surfactant-Solution Imbibition

SPE Journal ◽  
2013 ◽  
Vol 18 (05) ◽  
pp. 818-828 ◽  
Author(s):  
M. Hosein Kalaei ◽  
Don W. Green ◽  
G. Paul Willhite
Keyword(s):  
Experimental Data ◽  
Oil Recovery ◽  
History Matching ◽  
Mechanistic Model ◽  
Surfactant Solution ◽  
Experimental Tests ◽  
Quantitative Agreement ◽  
Wettability Alteration ◽  
Porous Rock ◽  
Surfactant Solutions

Summary Wettability modification of solid rocks with surfactants is an important process and has the potential to recover oil from reservoirs. When wettability is altered by use of surfactant solutions, capillary pressure, relative permeabilities, and residual oil saturations change wherever the porous rock is contacted by the surfactant. In this study, a mechanistic model is described in which wettability alteration is simulated by a new empirical correlation of the contact angle with surfactant concentration developed from experimental data. This model was tested against results from experimental tests in which oil was displaced from oil-wet cores by imbibition of surfactant solutions. Quantitative agreement between the simulation results of oil displacement and experimental data from the literature was obtained. Simulation of the imbibition of surfactant solution in laboratory-scale cores with the new model demonstrated that wettability alteration is a dynamic process, which plays a significant role in history matching and prediction of oil recovery from oil-wet porous media. In these simulations, the gravity force was the primary cause of the surfactant-solution invasion of the core that changed the rock wettability toward a less oil-wet state.

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