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Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double- β decay
Albert, J. B.,Anton, G.,Arnquist, I. J.,Badhrees, I.,Barbeau, P.,Beck, D.,Belov, V.,Bourque, F.,Brodsky, J. P.,Brown, E.,Brunner, T.,Burenkov, A.,Cao, G. F.,Cao, L.,Cen, W. R.,Chambers, C.,Charlebois, American Physical Society 2018 Physical Review C Vol.97 No.6
Improvement of lower hybrid current drive systems for high-power and long-pulse operation on EAST
Wang M.,Liu L.,Zhao L.M.,Li M.H.,Ma W.D.,Hu H.C.,Wu Z.G.,Feng J.Q.,Yang Y.,Zhu L.,Chen M.,Zhou T.A.,Jia H.,Zhang J.,Cao L.,Zhang L.,Liang R.R.,Ding B.J.,Zhang X.J.,Shan J.F.,Liu F.K.,Ekedahl A.,Gonich 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.11
Aiming at high-power and long-pulse operation up to 1000 s, some improvements have been made for both 2.45 GHz and 4.6 GHz lower hybrid (LH) systems during the recent 5 years. At first, the guard limiters of the LH antennas with graphite tiles were upgraded to tungsten, the most promising material for plasma facing components in nuclear fusion devices. These new guard limiters can operate at a peak power density of 12.9 MW/m2 . Strong hot spots were usually observed on the old graphite limiters when 4.6 GHz system operated with power >2.0 MW [B. N. Wan et al., Nucl. Fusion 57 (2017) 102019], leading to a reduction of the maximum power capability. With the new limiters, 4.6 GHz LH system, the main current drive (CD) and electron heating tool for EAST, can be operated with power >2.5 MW routinely. Long-pulse operation up to 100 s with 4.6 GHz LH power of 2.4 MW was achieved in 2021 and the maximal temperature on the guard limiters measured by an infrared (IR) camera was about 540 C, much below the permissible value of tungsten material (~1200 C). A discharge with a duration of 1056 s was achieved and the 4.6 GHz LH energy injected into the plasma was up to 1.05 GJ. Secondly, the fully-activemultijunction (FAM) launcher of 2.45 GHz system was upgraded to a passive-active-multijunction (PAM), for which the density of optimum coupling was relatively low (below the cut-off value). Good coupling with reflection coefficient ~3% has been achieved with plasma-antenna distance up to 11 cm for the new PAM. Finally, in order to eliminate the effect of ion cyclotron range of frequencies (ICRF) wave on 4.6 GHz LH wave coupling, the location of the ICRF launcher was changed to a port that is located 157.5 toroidally from the 4.6 GHz LH system and is not magnetically connected
Search for Neutrinoless Double-Beta Decay with the Upgraded EXO-200 Detector
Albert, J. B.,Anton, G.,Badhrees, I.,Barbeau, P. S.,Bayerlein, R.,Beck, D.,Belov, V.,Breidenbach, M.,Brunner, T.,Cao, G. F.,Cen, W. R.,Chambers, C.,Cleveland, B.,Coon, M.,Craycraft, A.,Cree, W.,Daniel American Physical Society 2018 Physical Review Letters Vol.120 No.7
Orbital-dependent polaron formation in the relativistic Mott insulatorSr2IrO4
Sohn, C. H.,Lee, Min-Cheol,Park, H. J.,Noh, Kyung Joo,Yoo, H. K.,Moon, S. J.,Kim, K. W.,Qi, T. F.,Cao, G.,Cho, Deok-Yong,Noh, T. W. American Physical Society 2014 Physical review. B, Condensed matter and materials Vol.90 No.4
Buckling of axial compressed cylindrical shells with stepwise variable thickness
Fan, H.G.,Chen, Z.P.,Feng, W.Z.,Zhou, F.,Shen, X.L.,Cao, G.W. Techno-Press 2015 Structural Engineering and Mechanics, An Int'l Jou Vol.54 No.1
This paper focuses on an analytical research on the critical buckling load of cylindrical shells with stepwise variable wall thickness under axial compression. An arctan function is established to describe the thickness variation along the axial direction of this kind of cylindrical shells accurately. By using the methods of separation of variables, small parameter perturbation and Fourier series expansion, analytical formulas of the critical buckling load of cylindrical shells with arbitrary axisymmetric thickness variation under axial compression are derived. The analysis is based on the thin shell theory. Analytic results show that the critical buckling load of the uniform shell with constant thickness obtained from this paper is identical with the classical solution. Two important cases of thickness variation pattern are also investigated with these analytical formulas and the results coincide well with those obtained from other authors. The cylindrical shells with stepwise variable wall thickness, which are widely used in actual engineering, are studied by this method and the analytical formulas of critical buckling load under axial compression are obtained. Furthermore, an example is presented to illustrate the effects of each strake's length and thickness on the critical buckling load.
Variable number of tandem repeats of 9 Plasmodium vivax genes among Southeast Asian isolates
Wang, B.,Nyunt, M.H.,Yun, S.G.,Lu, F.,Cheng, Y.,Han, J.H.,Ha, K.S.,Park, W.S.,Hong, S.H.,Lim, C.S.,Cao, J.,Sattabongkot, J.,Kyaw, M.P.,Cui, L.,Han, E.T. Verlag fur Recht und Gesellschaft 2017 Acta tropica Vol.170 No.-
<P>The variable number of tandem repeats (VNTRs) provides valuable information about both the functional and evolutionary aspects of genetic diversity. Comparative analysis of 3 Plasmodium falciparum genomes has shown that more than 9% of its open reading frames (ORFs) harbor VNTRs. Although microsatellites and VNTR genes of P. vivax were reported, the VNTR polymorphism of genes has not been examined widely. In this study, 230 P. vivax genes were analyzed for VNTRs by SERV, and 33 kinds of TR deletions or insertions from 29P. vivax genes (12.6%) were found. Of these, 9 VNTR fragments from 8 P. vivax genes were used for PCR amplification and sequence analysis to examine the genetic diversity among 134 isolates from four Southeast Asian countries (China, Republic of Korea, Thailand, and Myanmar) with different malaria endemicity. We confirmed the existence of extensive polymorphism of VNTR fragments in field isolates. This detection provides several suitable markers for analysis of the molecular epidemiology of P. vivax field isolates. (C) 2017 Elsevier B.V. All rights reserved.</P>
Search for nucleon decays with EXO-200
Albert, J. B.,Anton, G.,Badhrees, I.,Barbeau, P. S.,Bayerlein, R.,Beck, D.,Belov, V.,Breidenbach, M.,Brunner, T.,Cao, G. F.,Cen, W. R.,Chambers, C.,Cleveland, B.,Coon, M.,Craycraft, A.,Cree, W.,Daniel American Physical Society 2018 Physical Review D Vol.97 No.7