نتایج جستجو برای: asymmetric fields
تعداد نتایج: 309308 فیلتر نتایج به سال:
We explore the existence of quasisymmetric magnetic fields in asymmetric toroidal domains. These vector can be identified with a class magnetohydrodynamic equilibria presence pressure anisotropy. First, using Clebsch potentials, we derive system two coupled nonlinear first order partial differential equations expressing family bounded In regions where flux surfaces and constant field strength a...
Introduction: The complex geometry of breast and also lung and heart inhomogeneities near the planning target volume (PTV) result in perturbations in dose distribution. This problem can result in overdosage or underdosage in the match region of the three treatment fields. The purpose of this study is to create a homogeneous dose distribution in the match region between the supraclavicular and t...
The processes νe +n ⇋ e− + p and ν̄e + p ⇋ e +n provide the dominant mechanisms for heating and cooling the material below the stalled shock in a core-collapse supernova. We summarize the major effects of strong magnetic fields on the rates of the above reactions and illustrate these effects with a simple supernova model. Due to parity violation of weak interaction the heating rates are asymmetr...
We study classical energy-momentum (E-m) diagrams for rotational motion of dipolar asymmetric top molecules in strong external fields. Static electric fields, nonresonant linearly polarized laser fields, and collinear combinations of the two are investigated. We treat specifically the molecules iodobenzene (a nearly prolate asymmetric top), pyridazine (nearly oblate asymmetric top), and iodopen...
Geometrically Controlled Asymmetric Division of CD4+ T Cells Studied by Immunological Synapse Arrays
Similar to stem cells, naïve T cells undergo asymmetric division following activation. While asymmetric division of T cells has been shown to be an important mechanism for the generation of lymphocyte fate diversity during immune responses, key factors that influence whether T cells will undergo symmetric or asymmetric divisions are not completely understood. Here, we utilized immunological syn...
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