http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Experimental observations and modelling of intrinsic rotation reversals in tokamaks
Camenen, Y,Angioni, C,Bortolon, A,Duval, B P,Fable, E,Hornsby, W A,McDermott, R M,Na, D H,Na, Y-S,Peeters, A G,Rice, J E IOP 2017 Plasma physics and controlled fusion Vol.59 No.3
<P>The progress made in understanding spontaneous toroidal rotation reversals in tokamaks is reviewed and current ideas to solve this ten-year-old puzzle are explored. The paper includes a summarial synthesis of the experimental observations in AUG, C-Mod, KSTAR, MAST and TCV tokamaks, reasons why turbulent momentum transport is thought to be responsible for the reversals, a review of the theory of turbulent momentum transport and suggestions for future investigations.</P>
Observation of the intrinsic rotation in KSTAR Ohmic L-mode plasmas
Na, D.H.,Na, Yong-Su,Lee, S.G.,Angioni, C.,Yang, S.M.,Kim, H.-S.,Hahm, T.S.,Ko, W.H.,Jhang, H.,Lee, W.J. International Atomic Energy Agency 2016 Nuclear fusion Vol.56 No.3
<P>Two types of experiments were carried out to conduct an intrinsic rotation study in KSTAR. The first was a density ramp-up experiment without neutral beam injection, and the second was an experiment with beam blip technique. In these experiments, some characteristics of the intrinsic rotation were observed in the KSTAR Ohmic L-mode plasmas including: (i) a non-monotonic dependence of the core intrinsic rotation, called U-curve behaviour, with respect to the electron density and the collisionality related to the gradient of the toroidal rotation profile; and (ii) the behaviour of the anchor point in the intrinsic rotation profile for which the region exhibits a roughly flat shape and stays at nearly the same value even if the gradient of the toroidal rotation changes significantly in the core region. The location of the anchor point seems to be related to the <I>q</I> profile, and the toroidal rotation at the anchor point changes with the plasma operation parameters. These observations in the KSTAR Ohmic L-mode plasmas seem to be related to the rotation reversal phenomenon. A transport analysis was performed for the beam blip experiments in order to evaluate the intrinsic torque so that the U-curve behaviour can be further understood. The first results of the transport analysis in the KSTAR Ohmic L-mode plasmas show a correlation of the momentum fluxes and the intrinsic torques with the electron density and the collisionality. The rough magnitude and profiles of the intrinsic torque was experimentally obtained, and their possible mechanism is briefly discussed.</P>
An eight-user UMTS channel unit Processor for 3GPP base station applications
Prokop, T.,Thomas, C.,Bickerstaff, M.,Niemasz, J.,Bernadac, P.,Saintot, P.,Laufer, R.,Bescher, D.,Michel, R.,Walker, B.,Derriennic, F.,Burban, N.,Le Pape, E.,Moreau, J.P.,Cha, I.,Angioni, S.,Mhirsi, K IEEE 2004 IEEE journal of solid-state circuits Vol.39 No.9
We present a multi-user W-CDMA baseband channel unit processor for cellular base station applications. The ASIC is compliant with the 3GPP/UMTS standard and exceeds 3GPP minimum requirements for high-speed data by 2.2-6.2 dB. It supports up to eight users simultaneously, with a mix of voice and data services and a maximum uplink data rate of 384 kb/s and maximum downlink data rate of 2 Mb/s. The ASIC implements preamble detection, searching, demodulation RAKE-finger processing, channel coding/decoding for voice and data services, and transmission functions. It is coupled to a DSP to form a complete channel element for eight users.