Topic
Transverse plane
About: Transverse plane is a research topic. Over the lifetime, 17069 publications have been published within this topic receiving 194059 citations. The topic is also known as: axial plane.
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TL;DR: Criterion 1, a taller-than-wide shape in either transverse or longitudinal plane, was most accurate and sensitive for predicting thyroid malignancy among the three criteria.
Abstract: Background: A “taller-than-wide” shape is associated with thyroid malignancy, but taller-than-wide in which plane is most accurate is unclear. We determined in which ultrasonography (US) plane a taller-than-wide shape is most predictive of malignancy. Methods: A total of 471 thyroid nodules from 435 patients were studied. The final diagnosis was based on histopathology in 145 nodules in 120 patients, and cytology in the remaining patients. A taller-than-wide shape was defined as a ratio of ≥1, calculated by dividing the anteroposterior diameter by the transverse diameter. Three criteria were formulated as follows: criterion 1, a taller-than-wide in any plane as a suspicious feature; criterion 2, that in the transverse plane; criterion 3, that in the longitudinal plane. The sensitivity, specificity, positive predictive value, negative predictive value, and area under the receiver operating characteristic curve (Az) were compared among the three criteria. Result: Of the 471 lesions, 125 (26.5%) were classif...
68 citations
TL;DR: In this article, the closed series solution to scattering by an eccentric coated cylinder is realized in matrix form by boundary value analysis and the addition theorem of the Bessel's functions, and the results are compared to previously published works.
68 citations
TL;DR: It is shown that an EIT medium near the interface between a dielectric and a negative-index metamaterial can establish tight longitudinal and transverse confinement plus extreme slowing of surface polaritons, in both transverse electric andTransverse magnetic polarizations, while simultaneously avoiding losses.
Abstract: We propose fast all-optical control of surface polaritons by placing an electromagnetically induced transparency (EIT) medium at an interface between two materials. EIT provides longitudinal compression and a slow group velocity, while matching properties of the two materials at the interface provides strong transverse confinement. In particular, we show that an EIT medium near the interface between a dielectric and a negative-index metamaterial can establish tight longitudinal and transverse confinement plus extreme slowing of surface polaritons, in both transverse electric and transverse magnetic polarizations, while simultaneously avoiding losses.
68 citations
TL;DR: Based on the first order shear deformation theory (FSDT) a method is developed for calculating the transverse normal stress (in thickness direction) in layered composite plate structures as discussed by the authors.
68 citations
TL;DR: In this article, the authors discuss the transverse mode shaping and selection in laser resonators, and also the numerical and analytical methods to determine the field distributions of transverse modes.
Abstract: This chapter discusses the transverse mode shaping and selection in laser resonators. Laser resonators are categorized as either stable or unstable. In a stable resonator, a ray launched inside the resonator parallel to the optical axis remains inside it, whereas in an unstable resonator, the ray may bounce off the resonator after a few round-trips. The chapter describes transverse modes in stable and unstable resonators, and also the numerical and analytical methods to determine the field distributions of the transverse modes. Various methods to select specific transverse modes in laser resonators, along with techniques for fabricating the needed intra-cavity elements are also described. Intra-cavity elements can be incorporated into laser resonators to shape specific transverse mode patterns and to discriminate and select a specific single mode out of the many modes that exist in the resonator. The properties of the laser output beams include beam quality, output power and field distributions. The analytical tools for describing the properties of the laser output beams, along with selected applications are discussed in the chapter.
68 citations