Global Structure of Optically Thin, Magnetically Supported, Two-Temperature, Black Hole Accretion Disks

We present global solutions of optically thin, two-temperature black hole accretion disks incorporating magnetic fields. We assume that the {\pi}{\phi}-component of the Maxwell stress is proportional to the total pressure, and prescribe the radial dependence of the magnetic flux advection rate in order to complete the set of basic equations. We obtained magnetically supported (low-{\beta}) disk solutions, whose luminosity exceeds the maximum luminosity for an advection-dominated accretion flow (ADAF), L > 0.4 {\alpha}^2 L_Edd, where L_Edd is the Eddington luminosity. The accretion flow is composed of the outer ADAF, a luminous hot accretion flow (LHAF) inside the transition layer from the outer ADAF to the low-{\beta} disk, the low-{\beta} disk, and the inner ADAF. The low-{\beta} disk region becomes wider as the mass-accretion rate increases further. In the low-{\beta} disk, the magnetic heating balances the radiative cooling, and the electron temperature decreases from ~ 10^9.5 K to ~ 10^8 K as the luminosity increases. These results are consistent with the anti-correlation between the energy cutoff in X-ray spectra (hence the electron temperature) and the luminosity when L > 0.1 L_Edd, observed in the bright/hard state during the bright hard-to-soft transitions of transient outbursts in galactic black hole candidates.Comment: 27 pages, 15 figures, accepted for Publications of Astronomical Society of Japa

Impact of the passive component structure for high efficiency and fast response POL using Power Supply on Chip

Power-SoC, which integrates MCU, power device, control circuits and passive devices on the same chip has been attracted attention. In this paper, we discuss the impact of passive component structure for high efficiency and fast response POL using 3D Power-SoC (Supply on Chip). We propose the optimal structure according to the switching frequency based on simulations

Analysis of Information Spreading by Social Media Based on Emotion and Empathy

The number of social media users has increased exponentially in recent times, and various types of social media platforms are being introduced. While social media has become a convenient communication tool, its use has caused various social problems. Some users who cannot imagine the emotions their posts may induce in readers cause what is termed as “the flaming phenomenon.” In some cases, users intentionally repeat strong remarks for self-advertisement. To identify the cause of this phenomenon, it is necessary to analyze the posted contents or the personalities of the users who cause the flaming. However, it is difficult to reach a generalized conclusion because each case varies depending on the circumstances and individual. In this chapter, we study the phenomenon of information spreading via communication on social media by conducting a detailed analysis of replies and number of retweets in Japanese, and we reveal the relation between the feedback on such posts and the emotions or empathy they result in

Algunos rasgos característicos de la versión japonesa de Los heraldos negros

In the intricate process of translating The Complete Poetry of César Vallejo into Japanese, which was published in 2016 by the Gendai Kikakushitsu Publishing House in Tokyo, the most difficult challenge for the translator was, without doubt, the reproduction of the poetic language of The Blacks Heralds, because in this collection of poems, our poet is still looking for his own style, sometimes imitating the existing currents such as Spanish American modernismo. In contrast to the post-Trilce works of Vallejo, for which the translator could invent his own style «closed in itself», The Blacks Heralds, required him to access several corpus of the modern Japanese expression —the vocabulary of Japanese poets of the same period as The Blacks Heralds, and even the Japanese translated versions of Western poetry— to reproduce the complex poetic formation which beats in the book.Del proceso intrincado de traducción de Poesía completa de César Vallejo en japonés, que publicó en 2016 la editorial Gendai Kikakushitsu de Tokio, el reto más arduo para el traductor fue, sin duda, la reproducción del lenguaje poético de Los heraldos negros, porque en este poemario nuestro poeta sigue buscando todavía su propio estilo, a veces imitando las corrientes ya existentes como el modernismo. En contraste con las obras vallejianas post-Trilce, en las que el traductor pudo inventar para cada obra su propio estilo «cerrado en sí», ante LHN se vio obligado a acceder a varios corpus expresivos de la lengua moderna japonesa —del vocabulario de los poetas japoneses de la misma etapa de LHN hasta las traducciones japonesas de la poesía occidental— para reproducir esa compleja formación poética que palpita en el libro

Role of Temporal Processing Stages by Inferior Temporal Neurons in Facial Recognition

In this review, we focus on the role of temporal stages of encoded facial information in the visual system, which might enable the efficient determination of species, identity, and expression. Facial recognition is an important function of our brain and is known to be processed in the ventral visual pathway, where visual signals are processed through areas V1, V2, V4, and the inferior temporal (IT) cortex. In the IT cortex, neurons show selective responses to complex visual images such as faces, and at each stage along the pathway the stimulus selectivity of the neural responses becomes sharper, particularly in the later portion of the responses. In the IT cortex of the monkey, facial information is represented by different temporal stages of neural responses, as shown in our previous study: the initial transient response of face-responsive neurons represents information about global categories, i.e., human vs. monkey vs. simple shapes, whilst the later portion of these responses represents information about detailed facial categories, i.e., expression and/or identity. This suggests that the temporal stages of the neuronal firing pattern play an important role in the coding of visual stimuli, including faces. This type of coding may be a plausible mechanism underlying the temporal dynamics of recognition, including the process of detection/categorization followed by the identification of objects. Recent single-unit studies in monkeys have also provided evidence consistent with the important role of the temporal stages of encoded facial information. For example, view-invariant facial identity information is represented in the response at a later period within a region of face-selective neurons. Consistent with these findings, temporally modulated neural activity has also been observed in human studies. These results suggest a close correlation between the temporal processing stages of facial information by IT neurons and the temporal dynamics of face recognition