RADIO JET FEEDBACK AND STAR FORMATION IN HEAVILY OBSCURED, HYPERLUMINOUS QUASARS AT REDSHIFTS ∼ 0.5-3. I. ALMA OBSERVATIONS

Lonsdale, Carol J.,Lacy, M.,Kimball, A. E.,Blain, A.,Whittle, M.,Wilkes, B.,Stern, D.,Condon, J.,Kim, M.,Assef, R. J.,Tsai, C.-W.,Efstathiou, A.,Jones, S.,Eisenhardt, P.,Bridge, C.,Wu, J.,Lonsdale, Co IOP Publishing 2015 The Astrophysical journal Vol.813 No.1

<P>We present Atacama Large Millimeter/submillimeter Array (ALMA) 870 mu m (345 GHz) data for 49 high-redshift (0.47 < z < 2.85), luminous (11.7 < log(L-bol/L-circle dot) < 14.2) radio-powerful active galactic nuclei (AGNs), obtained to constrain cool dust emission from starbursts concurrent with highly obscured radiative-mode black hole (BH) accretion in massive galaxies that possess a small radio jet. The sample was selected from the Wide-field Infrared Survey Explorer with extremely steep (red) mid-infrared colors and with compact radio emission from NVSS/FIRST. Twenty-six sources are detected at 870 mu m, and we find that the sample has large mid- to far-infrared luminosity ratios, consistent with a dominant and highly obscured quasar. The rest-frame 3 GHz radio powers are 24.7 < log P-3.0 GHz/W Hz(-1)) < 27.3, and all sources are radio-intermediate or radio-loud. BH mass estimates are 7.7 < log(M-BH/M-circle dot) < 10.2. The rest-frame 1-5 mu m spectral energy distributions are very similar to the 'Hot DOGs' (hot dust-obscured galaxies), and steeper (redder) than almost any other known extragalactic sources. ISM masses estimated for the ALMA-detected sources are 9.9 < log (M-ISM/M-circle dot) < 11.75 assuming a dust temperature of 30 K. The cool dust emission is consistent with star formation rates reaching several thousand M-circle dot yr(-1), depending on the assumed dust temperature, but we cannot rule out the alternative that the AGN powers all the emission in some cases. Our best constrained source has radiative transfer solutions with approximately equal contributions from an obscured AGN and a young (10-15 Myr) compact starburst.</P>

Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench

Lin, W.,Byrne, T.B.,Kinoshita, M.,McNeill, L.C.,Chang, C.,Lewis, J.C.,Yamamoto, Y.,Saffer, D.M.,Casey Moore, J.,Wu, H.Y.,Tsuji, T.,Yamada, Y.,Conin, M.,Saito, S.,Ito, T.,Tobin, H.J.,Kimura, G.,Kanagaw Elsevier Scientific Publishing Co 2016 Tectonophysics Vol.692 No.2

<P>To better understand the distribution of three dimensional stress states in the Nankai subduction zone, southwest Japan, we review various stress-related investigations carried out in the first and second stage expeditions of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) by the Integrated Ocean Drilling Program (IODP) and compile the stress data. Overall, the maximum principal stress sigma(l) in the shallower levels (<similar to 1 km) is vertical from near the center of forearc basin to near the trench and; the maximum horizontal stress S-Hmax (interpreted to be the intermediate principal stress sigma(2)) is generally parallel to the plate convergence vector. The exception to this generalization occurs along the shelf edge of the Nankai margin where S-Hmax, is along strike rather than parallel to the plate convergence vector. Reorientation of the principal stresses at deeper levels (e.g., >similar to 1 km below seafloor or in underlying accretionary prism) with sigma(1) becoming horizontal is also suggested at all deeper drilling sites. We also make a comparison of the stress state in the hanging wall of the frontal plate-interface between Site C0066 in the Nankai and Site C0019 in the Japan Trench subduction zone drilled after the 2011 Mw 9.0 Tohoku-Oki earthquake. In the Japan Trench, a comparison between stress state before and after the 2011 mega-earthquake shows that the stress changed from compression before the earthquake to extension after the earthquake. As a result of the comparison between the Nankai Trough and Japan Trench, a similar current stress state with trench parallel extension was recognized at both C0006 and C0019 sites. Hypothetically, this may indicate that in Nankai Trough it is still in an early stage of the interseismic cycle of a great earthquake which occurs on the decollement and propagates to the toe (around site C0006). (C) 2015 Elsevier B.V. All rights reserved.</P>

Study of the dry methane reforming process using a rotating gliding arc reactor

Wu, A.,Yan, J.,Zhang, H.,Zhang, M.,Du, C.,Li, X. Pergamon Press 2014 International journal of hydrogen energy Vol.39 No.31

Dry methane reforming (DMR) via rotating gliding arc (RGA) discharge, co-driven by a magnetic field and tangential flow, was investigated in this study. Optical emission spectroscopy (OES) was used to characterize the major active species (energetic electrons, radicals, ions, atoms and excited molecules) in the DMR chemical process. The influence of the operational conditions (applied voltage and CH<SUB>4</SUB>/CO<SUB>2</SUB> ratio) on the basic spectroscopic parameters (electron excitation temperature, electron density and rotational temperature) was determined by spectroscopic methods. The rotational and electron excitation temperatures were approximately 1100-1200 K and 1.1-1.7 eV, respectively, indicating the non-thermal equilibrium characteristics of the RGA discharge. The electron density was approximately 5-20 x 10<SUP>21</SUP> m<SUP>-3</SUP> by fitting the line shape of H<SUB>α</SUB> at 656 nm. The conversions of the reactants (CH<SUB>4</SUB> and CO<SUB>2</SUB>) and the selectivities of the products (H<SUB>2</SUB>, CO and C<SUB>2</SUB> hydrocarbon) were analyzed using a gas chromatograph (GC) under different energy inputs or feed gas proportions. The structure and morphology of carbon black produced during the chemical process was characterized by high-resolution transmission electron microscopy (HRTEM) and Raman spectroscopy, indicating the properties of electrical conductivity and high absorption capacity that can be useful for potential application.

SEARCH FOR PULSED γ-RAY EMISSION FROM GLOBULAR CLUSTER M28

Wu, J. H. K.,Hui, C. Y.,Wu, E. M. H.,Kong, A. K. H.,Huang, R. H. H.,Tam, P. H. T.,Takata, J.,Cheng, K. S. IOP Publishing 2013 ASTROPHYSICAL JOURNAL LETTERS - Vol.765 No.2

<P>Using the data from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope, we have searched for gamma-ray pulsations from the direction of the globular cluster M28 (NGC 6626). We report the discovery of a signal with a frequency consistent with that of the energetic millisecond pulsar (MSP) PSR B1821-24 in M28. A weighted H-test test statistic of 28.8 is attained, which corresponds to a chance probability of similar to 10(-5) (4.3 sigma detection). With a phase-resolved analysis, the pulsed component is found to contribute similar to 25% of the total observed gamma-ray emission from the cluster. However, the unpulsed level provides a constraint for the underlying MSP population and the fundamental plane relations for the scenario of inverse Compton scattering. Follow-up timing observations in radio/X-ray are encouraged to further investigate this periodic signal candidate.</P>

Functional effects of β₃-adrenoceptor on pacemaker activity in interstitial cells of Cajal from the mouse colon

Wu, M.J.,Shin, D.H.,Kim, M.Y.,Park, C.G.,Kim, Y.D.,Lee, J.,Park, I.K.,Choi, S.,So, I.,Park, J.S.,Jun, J.Y. North-Holland ; Elsevier Science Ltd 2015 european journal of pharmacology Vol.754 No.-

<P>We investigated the presence of beta(3)-adrenoceptor and its functional effects on pacemaker potentials in colonic interstitial cells of Cajal (ICCs) from mice. The whole cell patch clamp technique was used to record pacemaker potentials in cultured ICCs and reverse transcription polymerase chain reaction (RT-PCR) was performed to detect the mRNA transcript levels beta-adrenoceptors. The beta(3)-adrenoceptor agonist, BRL37344, reduced the frequency of pacemaker potentials in a Concentration dependent manner. The inhibitory effects of BRL37344 wore blocked by the pretreatment of propranolol, a nonspecific beta-adrenoceptor antagonist, but not by the selective beta(1)-adrenoceptor antagonist atenolol and the selective beta(2)-adrenoceptor antagonist butoxamine. beta(3)-adrenocepto antagonists SR59230A and L748337 blocked the inhibitory effects of BRL37344. RT-PCR revealed mRNA transcripts of beta(1)- and beta(3)-adrenoceptor, but not beta(2)-adrenoceptor, in c-kit- and Ano-1-positive colonic ICCs. The K+ channel blockers tetraethylammoniu, apamin, and glibenclamide did not block the effects of BRL37344. N-omega-Nitio-L-arginiue methyl ester hydrochloride (L-NAME), an NO synthase inhibitor, and chelerythrine, a protein Kinase C inhibitor, also did not block the effects of BRL37344. Noradrenaline mimicked the effects of BRL37344 in colonic ICCs. However, the inhibitory effects of noradrenaline on pacemaker potentials were blocked only by pretreatment with atenolol but not by butoxamine, SR59230A, or L748337 in small intestinal ICCs, BRL37344 had no effect On pacemaker potentials and mRNA transcripts of beta(1)-and beta(2)-adrenoceptor, but not beta(3)-adrenoceptor were detected. These results suggest that beta(3)-adrenoceptors are present in colonic ICCs and may play a role in regulating gastrointestinal motility by the inhibition or pacemaker potentials. (C) 2015 Elsevier By. All rights reserved.</P>

Micropropagation of Cymbidium sinense using continuous and temporary airlift bioreactor systems

Gao, R.,Wu, S. Q.,Piao, X. C.,Park, S. Y.,Lian, M. L. POLISH ACADEMY SCIENCES WARSAW 2014 Acta physiologiae plantarum Vol.36 No.1

Airlift bioreactors were programmed for continuous and temporary immersion culture to investigate factors that affect the rhizome proliferation, shoot formation, and plantlet regeneration of Cymbidium sinense. During rhizome proliferation, the continuous immersion bioreactor system was used to explore the effects of activated charcoal (AC) in the culture medium, inoculation density, and air volume on rhizome differentiation and growth. The optimum conditions for obtaining massive health rhizomes were 0.3 g l(-1) AC in the culture medium, 7.5 g l(-1) inoculation density, and 150 ml min(-1) air. In addition, the temporary immersion bioreactor system was used for both shoot formation and plantlet regeneration. Supplementing 4 mg l(-1) 6-benzylaminopurine and 0.2 mg l(-1) naphthalene acetic acid (NAA) to the culture medium promoted shoot induction from the rhizome. Cutting the rhizome explants into 1 cm segments was better for massive shoot formation than cutting into 0.25 and 0.5 cm explant segments. NAA promoted plantlet regeneration and the rooting rate (94.7 %), with whole plantlets growing well in culture medium containing 1.0 mg l(-1) NAA. Therefore, applying bioreactors in C. sinense micropropagation is an efficient way for scaling up the production of propagules and whole plantlets for the industrial production of high-quality seedlings.

Fiber hypertrophy and increased oxidative capacity can occur simultaneously in pig glycolytic skeletal muscle

Scheffler, T. L.,Scheffler, J. M.,Park, S.,Kasten, S. C.,Wu, Y.,McMillan, R. P.,Hulver, M. W.,Frisard, M. I.,Gerrard, D. E. American Physiological Society 2014 American journal of physiology. Cell physiology Vol.306 No.4

<P>An inverse relationship between skeletal muscle fiber cross-sectional area (CSA) and oxidative capacity suggests that muscle fibers hypertrophy at the expense of oxidative capacity. Therefore, our objective was to utilize pigs possessing mutations associated with increased oxidative capacity [AMP-activated protein kinase (AMPKγ<SUB>3</SUB><SUP>R200Q</SUP>)] or fiber hypertrophy [ryanodine receptor 1 (RyR1<SUP>R615C</SUP>)] to determine if these events occur in parallel. Longissimus muscle was collected from wild-type (control), AMPKγ<SUB>3</SUB><SUP>R200Q</SUP>, RyR1<SUP>R615C</SUP>, and AMPKγ<SUB>3</SUB><SUP>R200Q</SUP>-RyR1<SUP>R615C</SUP> pigs. Regardless of AMPK genotype, RyR<SUP>R615C</SUP> increased fiber CSA by 35%. In contrast, AMPKγ<SUB>3</SUB><SUP>R200Q</SUP> pig muscle exhibited greater citrate synthase and β-hydroxyacyl CoA dehydrogenase activity. Isolated mitochondria from AMPKγ<SUB>3</SUB><SUP>R200Q</SUP> muscle had greater maximal, ADP-stimulated oxygen consumption rate. Additionally, AMPKγ<SUB>3</SUB><SUP>R200Q</SUP> muscle contained more (∼50%) of the mitochondrial proteins succinate dehydrogenase and cytochrome <I>c</I> oxidase and more mitochondrial DNA. Surprisingly, RyR1<SUP>R615C</SUP> increased mitochondrial proteins and DNA, but this was not associated with improved oxidative capacity, suggesting that altered energy metabolism in RyR1<SUP>R615C</SUP> muscle influences mitochondrial proliferation and protein turnover. Thus pigs that possess both AMPKγ3<SUP>R200Q</SUP> and RyR<SUP>R615C</SUP> exhibit increased muscle fiber CSA as well as greater oxidative capacity. Together, our findings support the notion that hypertrophy and enhanced oxidative capacity can occur simultaneously in skeletal muscle and suggest that the signaling mechanisms controlling these events are independently regulated.</P>

ORBITAL-PHASE-DEPENDENT γ-RAY EMISSIONS FROM THE BLACK WIDOW PULSAR

Wu, E. M. H.,Takata, J.,Cheng, K. S.,Huang, R. H. H.,Hui, C. Y.,Kong, A. K. H.,Tam, P. H. T.,Wu, J. H. K. IOP Publishing 2012 The Astrophysical journal Vol.761 No.2

<P>We report on evidence for orbital phase dependence of the gamma-ray emission from the PSR B1957+20 black widow system using data from the Fermi Large Area Telescope. We divide an orbital cycle into two regions: one containing the inferior conjunction and the other containing the rest of the orbital cycle. We show that the observed spectra for the different orbital regions are fitted by different functional forms. The spectrum of the orbital region containing the inferior conjunction can be described by a power law with an exponential cutoff (PLE) model, which also gives the best-fit model for the orbital phase without the inferior conjunction, plus an extra component above similar to 2.7 GeV. The emission above 3 GeV in this region is detected with a similar to 7 sigma confidence level. The gamma-ray data above similar to 2.7 GeV are observed to be modulated at the orbital period at the similar to 2.3 sigma level. We anticipate that the PLE component dominant below similar to 2.7 GeV originates from the pulsar magnetosphere. We also show that inverse Compton scattering of the thermal radiation of the companion star off a 'cold' ultrarelativistic pulsar wind can explain the extra component above similar to 2.7 GeV. The black widow pulsar PSR B1957+20 may be a member of a new class of object, in the sense that the system is showing gamma-ray emission with both magnetospheric and pulsar wind origins.</P>

The Study of Microstructures and Magnetic Properties of Co<SUB>100-x</SUB>Pt<SUB>x</SUB> and Co<SUB>100-x</SUB>Pt<SUB>x</SUB>/Ag Alloy Thin Films

M. S. Wu,P. C. Kuo,C. L. Shen 한국자기학회 2010 한국자기학회 학술연구발표회 논문개요집 Vol.2010 No.12

Applications of the Lactobacillus rhamnosus (Tcell-1 Cell-Line) Separated From Taiwanese Intestinal Canal, and the Antrodia Camphorata, National Treasure of Taiwan, on the Disease Model Animals

M.-F. Wu,W.-L. Lai,Y.-M. Hsu,M.-C. Wu 한국실험동물학회 2003 한국실험동물학회 학술발표대회 논문집 Vol.2003 No.-