2,746 research outputs found
Resisting the author: JT LeRoy's fictional authorship
Full text linkIn the last decade, the interest in the relation between author and text, author and autobiography, seems to have grown. In my article, I use the story of the author JT LeRoy as a framework to analyse what this growing interest means for our understanding of the word "author." JT LeRoy’s work was considered to be autobiographical or, perhaps, autofictional. However, the authorship of LeRoy appeared to be based on a hoax; JT LeRoy proved to be a fictitious persona, made up by the writer Laura Albert. How does the unmasking of an author influence the reception of his/her work? And what does it teach us about the relation between reader and text, reader and author? In my article, I attempt to answer these questions, and, furthermore, I discuss how LeRoy’s mixed gender relates to the question of the dead male author and the hyped "constructed" female author
Prevalence and characteristics of nonpolypoid colorectal neoplasm in an asymptomatic and average-Risk Chinese population.
No full textAminoguanidine prevents fructose-induced deterioration in left ventricular-arterial coupling in Wistar rats.
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PENYELENGGARAAN VIRTUAL MEETING OPEN POLICY ASOSIASI PENYELENGGARA JASA INTERNET INDONESIA OLEH SHOW MANAGEMENT JT PRODUCTION
No full textDengan menggunakan metode penelitian kualitatif deskriptif yang bisa menggambarkan semua fenomena yang ada secara faktual dan sistematis. Teknik pengumpulan data yang dilakukan penulis adalah dengan melakukan observasi langsung selama kegiatan PKL di JT Production, studi literatur, dan wawancara kepada pihak penyelenggara. Penelitian ini menghasilkan beberapa hal yang dilakukan dalam penyelengaraan virtual meeting dari perusahaan Asosiasi Penyelenggara Jasa Internet Indonesia (APJII) yang dimulai dari planning berupa pengajuan, meeting dan survey, produksi konten, loading barang dan gladi bersih. Selain itu, sebagai show management, JT Production harus melakukan beberapa hal berupa pembuatan rundown, penghubung delegasi, desain, dan penentuan posisi dalam stage. Dengan adanya penelitian ini, diharapkan pembaca dapat mengetahui bagaimana pelaksanaan virtual meeting yang diselenggarakan oleh show management yaitu JT Production.
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By using descriptive qualitative research methods that can describe all the phenomena that exist factually and systematically. The data collection technique carried out by the author is by direct observation during Internship activities at JT Production, literature studies, and interviews with the organizers. This research resulted in several things being carried out in the implementation of virtual meetings from the Indonesian Internet Service Providers Association (APJII) company which started from planning in the form of submissions, meetings and surveys, content production, loading and rehearsals. In addition, as show management, JT Production have to do several things in the form of making rundowns, connecting delegations, designing, and determining positioning on the stage. With this research, it is hoped that readers can find out how the implementation of virtual meetings organized by show management, namely JT Production
Space-time coding with receive combiner bank for multiple-input-multiple-output system under multi-user cochannel interference
No full text[[abstract]]Space-time coding with receive combiner bank (STC-RCB), in which a bank of receive combiners is added before the space-time decoder for interference-plus-noise suppression, is proposed. Without loss of generality, the author consider space-time block code (STBC) to be the representative of STC and study the performance for (STBC-RCB). The author derive the output signal to interference-plus-noise ratio (SINR) (of the space-time decoder) for STBC-RCB under multi-user cochannel interference. By regarding STBC as a special case of STBC-RCB, the author also derive the output SINR for STBC under multi-user cochannel interference. Simulation results show that the output SINR of STBC-RCB can be much larger than that of STBC, also, they show that STBC-RCB can adopt the appropriate receive combining strategy in the RCB to further improve the performance.[[note]]SC
Analysis of ELM stability with extended MHD models in JET, JT-60U and future JT-60SA tokamak plasmas
No full textThe stability with respect to a peelingballooning mode (PBM) was investigated numerically with extended MHD simulation codes in JET, JT-60U and future JT-60SA plasmas. The MINERVA-DI code was used to analyze the linear stability, including the effects of rotation and ion diamagnetic drift (w∗i), in JET-ILW and JT-60SA plasmas, and the JOREK code was used to simulate nonlinear dynamics with rotation, viscosity and resistivity in JT-60U plasmas. It was validated quantitatively that the ELM trigger condition in JET-ILW plasmas can be reasonably explained by taking into account both the rotation and w∗i effects in the numerical analysis. When deuterium poloidal rotation is evaluated based on neoclassical theory, an increase in the effective charge of plasma destabilizes the PBM because of an acceleration of rotation and a decrease in w∗i. The difference in the amount of ELM energy loss in JT-60U plasmas rotating in opposite directions was reproduced qualitatively with JOREK. By comparing the ELM affected areas with linear eigenfunctions, it was confirmed that the difference in the linear stability property, due not to the rotation direction but to the plasma density profile, is thought to be responsible for changing the ELM energy loss just after the ELM crash. A predictive study to determine the pedestal profiles in JT-60SA was performed by updating the EPED1 model to include the rotation and w∗i effects in the PBM stability analysis. It was shown that the plasma rotation predicted with the neoclassical toroidal viscosity degrades the pedestal performance by about 10% by destabilizing the PBM, but the pressure pedestal height will be high enough to achieve the target parameters required for the ITER-like shape inductive scenario in JT-60SA
Design of stabilizing plate of JT-60SA
No full textThe stabilizing plate (SP) of JT-60SA has been designed based on an electromagnetic and a structural analysis. The SP plays a role of both a passive stabilizer of magnetohydrodynamics (MHD) instability and a first wall at low field side in combination with a graphite tile. The SP has a double skin structure with 10 mm thickness each in order to have simultaneously high resistivity in the toroidal direction and high strength against plasma disruption as well as a seismic event. A finite element method for the calculation of the electromagnetic force induced by disruption and the structural analysis has been applied. The most serious event which is fast major disruption, is mainly considered. The eddy current reaches up to 100 MA/m2, which induces electromagnetic force <120 MN/m3. The SP has been modified in order to satisfy the allowable membrane, bend and peak stress of SS316 L. Trial manufacture of a part of the SP has been done to investigate the effect of the weld on the deformation of the SP resulting from the contraction of the weld metal. The arrangement of heat sinks and coolant pipes, and graphite tiles has also been done, taking into account the long pulse operation of the JT-60SA plasma. 1. Introduction The project of JT-60SA [1] is in progress at Naka, Japan, as a satellite tokamak in the Broader Approach activity under the international collaboration between Japan and Europa. The JT-60SA tokamak, which is the largest superconducting device, was successfully completed in March 2020 and is in the commissioning phase, which is planned by May 2021, including the first plasma initiation. The purpose of JT-60SA is a demonstration and study of the steady-state plasma with high beta targeting on the supplement to ITER toward DEMO and contributing to optimizing ITER operation scenarios. After the commissioning phase, we will upgrade the JT-60SA tokamak for 26 months. We will install many in-vessel components such as in-vessel coils, lower divertor, a cooling system including a heat-sink for in-vessel walls, the stabilizing plate (SP), and additional heating systems. The SP plays a role of both a passive stabilizer of magnetohydrodynamics (MHD) instabilities such as vertical displacement event (VDE) and resistive wall mode (RWM), and the first wall at low field side in combination with a heat-sink as well as a graphite tile. The in-vessel metal wall whose purpose is the stabilization of MHD instabilities is installed in some tokamaks such as NSTX [2], KSTAR [3], EAST [4]. The principle of stabilization of MHD instabilities by the in-vessel metal wall is that eddy current induced by MHD instabilities produces a magnetic field that pushes plasma back and stabilizes MHD instabilities. The in-vessel metal wall named passive stabilizer plate surrounds the upper and lower region of the plasma at a low field side in tokamaks except for JT-60SA. The in-vessel metal wall called stabilizing plate in JT-60SA surrounds the whole region of plasma at the low field side to obtain the steady-state high beta plasma. Fig. 1 shows the bird’s eye view of the SP as well as a part of the vacuum vessel (VV), error field correction coil (EFCC), fast positioning control coil (FPCC), and resistive wall mode coil (RWMC) of JT-60SA. The SP can be toroidally separated into 18 sections and connected to the vacuum vessel by 74 pedestals which are equipped with 18 support frames. Fig. 2 shows the poloidal cross-section of the SP, the VV, lower and upper divertors in combination with the flux surface of the double- null divertor configuration of the JT-60SA plasma. The plasma does not attach but gets closer to the SP within a distance of 10 mm for effective MHD stabilization. The specification of the SP is listed in the Table 1. The material of the SP is stainless steel 316 L with low cobalt content (Co <0.05 wt%) to avoid the production of cobalt-60 which is a radioactive isotope and can be produced by the fission reaction with neutrons during deuterium-deuterium experiments. Fig. 3 shows the exploded view of one toroidal section of the SP. The SP consists of the main part of the SP as shown in Fig. 3a) and the support frame having * Corresponding author. E-mail address: [email protected] (S. Yamamoto). Contents lists available at ScienceDirect Fusion Engineering and Design journal homepage: www.elsevier.com/locate/fusengdes https://doi.org/10.1016/j.fusengdes.2021.112361 Received 30 November 2020; Received in revised form 1 February 2021; Accepted 15 February 2021journal articl
THE JAHN-TELLER (JT) EFFECT IN THE STATE OF THE NITRATE RADICAL NO
No full textAuthor Institution: Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125; Department of Chemistry, University of Texas at Austin, Austin, TX 78712The JT effect in the E of NO is poorly understood. A preliminary spectrum of the vibronically-allowed transition, coupled with ab initio calculations, shows moderate JT activity in the state. Vibronic bands exhibit either static or dynamic JT distortions depending on the vibrational level of the upper state. The picture of the state is however incomplete. For example, in the Ee=aae manifold, while the splitting would provide a direct measure of the JT strength, only the a levels have been observed. We have gained new insight into the state by examining the hot bands of NO which access previously unobserved dark levels of the state
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