Background and Aims: Disc displacement is the most common temporomandibular joint disorder and MAGNETIC resonance imaging (MRI) is the gold standard in its diagnosis. This disorder can lead to changes in signal intensity of MAGNETIC resonance (MR). The purpose of this study was evaluation of correlation between relative signal intensity of MR images of retrodiscal tissue, superior and inferior head of lateral ptrygoid muscle with type of anterior disk displacement and condylar head flattening in patients with temporomandibular disorder (TMD).Materials and Methods: In this retrospective study, 31 MR images of patients who had anterior disc displacement were evaluated. After relative signal intensity measurement for retrodiscal tissue, superior and inferior head of lateral ptrygoid muscle, the correlation between relative signal intensity and type of anterior disc displacement was evaluated with repeated measure ANOVA test. In each of these 3 areas, t-test was used to compare the groups with and without condylar head flattening.Results: The correlation between relative signal intensity of MR images and type of anterior disc displacement in retrodiscal tissue, superior and inferior head of lateral ptrygoid muscle was not significant. There was also no statistically significant correlation between relative signal intensity of MR images and flattening of condylar head in retrodiscal tissue, superior and inferior head of lateral ptrygoid muscle (P>0.05).Conclusion: According to findings of this study, relative signal intensity of MR images in retrodiscal tissue, superior and inferior head of ptrygoid muscle is not a good predictor for type of anterior disc displacement and flattening of condylar head. It seems that this cannot be used as a diagnostic marker for TMD progression.

Motivated by recent experiments that detects Dzyaloshinskii-Moriya (DM) INTERACTION in Bi3Mn4O12 (NO3), we study the effects of DM INTERACTION on MAGNETIC orders of J1-J2 antiferroMAGNETIC Heisenberg model. First, we find the classical phase diagram of the model using Luttinger-Tisza approximation. In this approximation, the classical phase diagram has two phases. For 2 J2  (1 D ) / 6, the model has canted Neel and DM INTERACTION cants the spins of one on the subluttices. The ground state of model is classically degenerate for 2 J2  (1 D ) / 6, including infinit numbers of vorticity vectors that are able to minimize the model. This phase is important because of the probability of the existence of quantum spin liquid in this region. To investigate the effect of quantum fluctuation on the stability of the classical phase diagram, linear spin wave theory of Holstein-Primakoff is used. The results show that in the classical degeneracy regime, the quantum fluctuations for 2 J2  (1 D ) / 2 cause spiral order in this region. The ground state of model remains disorder for 2 2 (1 D ) / 6  J2  (1 D ) / 2, and this region is a good place for finding quantum spin liquid.

To assesse the iron and silicon effects on the yield and physiological characteristics of green pea, Wando cultivar by ASGrow Corporation was used in three levels of iron chelate (0.05, 0.1 and 0.3 gr per l-1) and silicon (0, 14 and 28 mg per l-1), as a factorial experimental in completely randomized design with three replications. In this experiment, characterisics such as fresh and dry weight of grain, the number of grain per pod, concentration of Fe, Cu, Mn, Zn and Si in leaf and grain were measured. Results showed that the INTERACTION of Fe and Si was significant at p<0.01 on grain fresh and dry wigeht, concentratin of leaf and grain Fe, leaf Mn, leaf and grain Zn and leaf Si and the application of Fe and Si was significant separately, on other traits such as number of grain per pod, concentration of leaf and grain Cu, Mn and Si in grain.  The Mean squares showed that the application of Fe and Si significantly increased fresh and dry grain weight and Si laef concetration and decreased the concentratin of leaf and grain Fe and Mn as well as grain Mn.  The enhancement of Fe and Si application separately decreased the concentration of Mn, Cu and zinc leaf and grains, but the Si concentration of leaf and grain were increased by Si application. The concentration of Fe, Mn, Cu and Zn were decreased in leaf and grain because of antagonistic effects. It can be concluded that Si reduces the harmfull effects of high levels of iron toxicity and the application of 0.1 g/l and 25 mg/l can be recommended as the best treatments.

The purpose of this paper is to present a new type of dynamic balancing system, having a driving solution of the rotating part based on MAGNETIC INTERACTIONs. The MAGNETIC system also plays the role of an elastic bearing. The structure has some important advantages: an easy to design and build mechanical system; no influence of the environmental factors on the measuring accuracy; low production costs; no direct transmission from the driving motor to the rotor that has to be balanced. In the first part of the article it is presented the technical solution which allows the dynamic balancing evaluation depending on the radial displacement be-tween two disks with permanent magnets, creating a MAGNETIC coupling. It is presented the results obtained on the experimental way, that validated both the numerical simulation as well as the analytic calculation. Using a 2D model, the resultant MAGNETIC force was analytically calculated, whose value depends on the misalignment of the balanced part, against the equilibrium position. Due to the specific geometry, to validate the 2D analytical calculation model, it was necessary to create a FEM model of the MAGNETIC system. A simulation was performed to evaluate the dependence between the radial displacements and the MAGNETIC forces. It was used a 3D simulation software, specific for these kind of problems - the IN-FOLYTICA software. The final results show that there is a similarity between 2D analytical calculation model, 3D simulation and practical measurements. In the second part of the article it is presented a practical application for this type of balancing system, used to build a two plane dynamic balancing machine for card an shafts. It is also shown how it can be eliminated the disturbing unbalance introduced by the clamping system of the balanced part using a software method.

We study the INTERACTION of a microwave cavity with a MAGNETIC sphere. We show that achieving the strong coupling regime in this hybrid system is feasible. The simulation results demonstrate that the coupling rate is proportional to the square root of the volume of the magnet and also is mode dependent and decreases with increasing the mode index. Since the dielectric constant of the MAGNETIC sphere differs from that of the medium, it can act as a spherical cavity, and coupling between its eigenmodes and the electric field of the microwave cavity also occurs. The reflection spectrum includes more than one anti-crossing for relatively larger MAGNETIC spheres