175 research outputs found
Trauma and Fairy Tales in Lonely Castle in the Mirror by Mizuki Tsujimura
No full textThis article deals with the metaphoric representation of childhood traumatic experiences through references to European fairy tales in the novel Lonely Castle in the Mirror by Mizuki Tsujimura, “an innovative and tender blend of social commentary and magical realism” as defined by Riyoko Shibe. The paper traces the different ways the author incorporates European fairy tales and introduces the fantastic to describe the traumatic experiences of the children who went through severe bullying at school. The article attempts to demonstrate that these references serve both as symbolic representations of these experiences and as an escape from them, as they provide a metaphorical means to deal with the psychological distress.IAFOR Journal of Literature and Librarianship, 12(1), pp.67-80; 2023journal articl
Optimized design of polarizers with low ohmic loss and any polarization state for the 28 GHz QUEST ECH/ECCD system
No full text0000-0002-2983-5920In a high-power long-pulse millimeter-wave transmission line for electron cyclotron heating and current drive (ECH/ECCD), the ohmic loss on the grooved mirror surface of polarizers is one of the important issues for reducing the transmission loss. In this paper, the ohmic loss on the mirror surface is evaluated in simulated real-scale polarizer miter bends for different groove parameters under a linearly-polarized incident wave excitation. The polarizers with low ohmic loss are optimally designed for a new 28 GHz transmission line on the QUEST spherical tokamak. The calculated optimum ohmic loss is restricted to only less than 1.5 times as large as the theoretical loss for a copper flat mirror at room temperature. The copper rounded-rectangular grooves of the polarizers were relatively easy to make smooth in mechanical machining and the resultant surface roughness was not more than 0.15 μm, which is only 0.38 times as large as the skin depth. The combination of the designed elliptical polarizer and the polarization rotator can also realize any polarization state of the reflected wave.journal articl
Small Cell Carcinoma in a Vesical Diverticulum : A Case Report
No full textWe report a case of small cell carcinoma located within the vesical diverticulum. A73-year-old woman referred to our hospital with a chief complaint of gross hematuria. Cystoscopy confirmed a non-papillary tumor within the vesical diverticulum. Histopathologic diagnosis with transurethral resection of the tumor (TURBT) specimen was small cell carcinoma. Later, tumor recurrence occurred within the same diverticulum. TURBT and biopsy of the vesical mucosa were performed. After confirming that no tumor was detected outside of the diverticulum, partial cystectomy was done including an adequate margin around the diverticulum in September, 2010. Since the histopathologic finding of the specimen revealed urothelial carcinoma (UC) this time and microinvasion and venous invasion were detected, we performed an adjuvant chemotherapy according to the protocol of gemcitabine and cisplatin therapy. To our knowledge, this is the 4th case report of small cell carcinoma located in a vesical diverticulum in Japan
Azimuthal mode decomposition of millimeter-wave integer and non-integer optical vortices generated by a spiral mirror
No full textORCID 0000-0001-6636-8500We investigated the characteristics of both integer and non-integer optical vortices (OVs) in the millimeter-wave regime generated by a spiral mirror. An OV, characterized by the phase term eiℓϕ, also known as a Laguerre–Gaussian (LG) beam, is a solution to the wave equation in cylindrical coordinates under the paraxial approximation in free space. This typically restricts the azimuthal mode number ℓ to integer values.
However, the spiral mirror enables the generation of OVs with expected azimuthal mode numbers ¯ℓ, which can take either integer or noninteger values in the reflected wave. We employed a field reconstruction method to analyze both integer and non-integer OVs with ¯ℓ generated by the spiral mirror, decomposing them into their constituent integer ℓ components. Our results showed that when ¯ℓ is specified as an integer, the generated OV primarily contains that single ℓ. In contrast, specifying a non-integer ¯ℓ results in an OV composed of a superposition of multiple integer ℓ values. In other words, non-integer OVs are superpositions of LG beams with different integer azimuthal mode numbers.
These OVs are generated by the spiral mirror with a focus function, allowing for the specification of arbitrary waist sizes and focal positions, as designed for this research. Furthermore, we revealed that this focus spiral mirror can also avoid the separation of singularities that were present in OVs generated by conventional flat spiral mirrors.journal articl
Propagation properties of electron cyclotron waves with helical wavefronts in magnetized plasma
No full text0000-0002-2983-5920Propagation properties of an optical vortex with a helical wavefront in cold uniform magnetized plasma are theoretically investigated in an electron cyclotron range of frequencies. The effects of the helical wavefront of the optical vortex on the wave fields in magnetized plasma are described. These effects become significant as the topological charge of the optical vortex increases or the distance from the phase singularity point becomes small. The different properties of propagation are also confirmed in propagation of Laguerre–Gaussian beams by three-dimensional simulations with the finite element method.journal articl
Propagation properties of electron cyclotron waves with helical wavefronts in magnetized plasma
No full text0000-0002-2983-5920Propagation properties of an optical vortex with a helical wavefront in cold uniform magnetized plasma are theoretically investigated in an electron cyclotron range of frequencies. The effects of the helical wavefront of the optical vortex on the wave fields in magnetized plasma are described. These effects become significant as the topological charge of the optical vortex increases or the distance from the phase singularity point becomes small. The different properties of propagation are also confirmed in propagation of Laguerre–Gaussian beams by three-dimensional simulations with the finite element method
Propagation properties of electron cyclotron waves with helical wavefronts in magnetized plasma
No full textRecipe Names as a Gateway to Interpersonal Communication
No full textAn examination of Japanese cookbooks from the early twentieth century to date demonstrates that changes in the nature of recipe names over the past 87 years have made the relationship between the writer and the audience closer. Recipe names have come to be more informative and creative through the rich use of mimetics, metaphors, and word play. Furthermore, they have become more personalized and stylized. The personal stories behind these recipe names help the author elicit in readers a sense of camaraderie and/or nostalgic memories that specific food items in a given historical period evoke. This article demonstrates two things: what seem to be simple names for recipes can be regarded as a gateway to interpersonal communication between the author and audience; and recipe names have evolved into an increasingly enriched form of communication over time by ingenious use of various tools available in the language.</jats:p
Diffraction Patterns of the Millimeter Wave with a Helical Wavefront by a Triangular Aperture
No full text0000-0001-6636-8500In this paper, for the first time, we developed the measurement method of the topological charge (TC) in millimeter wave with helical wavefront by a triangular aperture. The millimeter wave with helical wavefront was passively generated by conversion from a Gaussian beam using a spiral mirror, which we also developed. Each diffraction pattern depended on TC, and negative TC and positive TC were symmetric pairs under reflection. These diffraction patterns were perfectly compatible with the calculation results.journal articl
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