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LÜ,, Lei,JOSHI, Yogesh,ELIX, John A.,LUMBSCH, H. Thorsten,WANG, Hai Ying,KOH, Young Jin,HUR, Jae-Seoun Cambridge University Press 2011 The Lichenologist Vol.43 No.4
<B>Abstract</B><P>Two new species, <I>Lecanora hafelliana</I> L. Lü, Y. Joshi & Hur and <I>L</I>. <I>loekoesii</I> Y. Joshi, L. Lü & Hur, are described as new to science from South Korea and eight species, <I>L. campestris</I> (Schaer.) Hue, <I>L. cenisia</I> Ach., <I>L. nipponica</I> H. Miyaw., <I>L. perplexa</I> Brodo, <I>L. plumosa</I> Müll. Arg., <I>L. polytropa</I> (Hoffm.) Rabenh., <I>L. subrugosa</I> Nyl. and <I>L. sulcata</I> (Hue) H. Miyaw., are recorded from South Korea for the first time. <I>Lecanora hafelliana</I> is characterized by the presence of hafellic acid, which is reported for the first time in this genus, while <I>L. loekoesii</I> is characterized by multispored asci and a thallus containing norstictic acid.</P>
KALB, JUTARAT,POLYIAM, WETCHASART,PLATA, EIMY RIVAS,BAWINGAN, PAULINA A.,KALB, KLAUS,LÜ,CKING, ROBERT Magnolia Press 2016 Phytotaxa Vol.286 No.2
<P>We provide an updated account on the species of the Cruentotrema-Dyplolabia clade in Graphidaceae subfamily Fissurinoideae, describing three new species: Cruentotrema lirelliforme J. Kalb, Polyiam & K. Kalb, differing from Cruentotrema thailandicum in the lirelliform ascomata; Dyplolabia chumphonensis J. Kalb & K. Kalb, differing from Dyplolabia oryzoides by smaller ascospores; and Dyplolabia dalywaiana Rivas Plata, Bawingan & Lücking, differing from other Dyplolabia species in the angular, erumpent asomata with broadly exposed disc and irregular pseudocolumella. In addition, two further species are recognized as new combinations: Cruentotrema puniceum (Müll. Arg.) J. Kalb & K. Kalb (Bas.: Arthothelium puniceum Müll. Arg.; syn.: Thelotrema rhododiscum Homchant. & Coppins) and Dyplolabia ochrocheila (Vain.) Rivas Plata & Lücking (Bas.: Graphis ochrocheila Vain.). Cruentotrema kurandense is reported as new to Thailand. Altogether, 11 species are now recognized in the two genera, six in Cruentotrema and five in Dyplolabia. In view of the disparate morphology of the two genera, the discovery of two of the three new species is highlighted as phenotypically transitional taxa, so-called ‘missing links’, and the phylogeny of this clade is revised.</P>
Atmospheric brown clouds reach the Tibetan Plateau by crossing the Himalayas
Lü,thi, Z. L.,Š,kerlak, B.,Kim, S.-W.,Lauer, A.,Mues, A.,Rupakheti, M.,Kang, S. Copernicus GmbH 2015 Atmospheric chemistry and physics Vol.15 No.11
<P>Abstract. The Himalayas and the Tibetan Plateau region (HTP), despite being a remote and sparsely populated area, is regularly exposed to polluted air masses with significant amounts of aerosols including black carbon. These dark, light-absorbing particles are known to exert a great melting potential on mountain cryospheric reservoirs through albedo reduction and radiative forcing. This study combines ground-based and satellite remote sensing data to identify a severe aerosol pollution episode observed simultaneously in central Tibet and on the southern side of the Himalayas during 13-19 March 2009 (pre-monsoon). Trajectory calculations based on the high-resolution numerical weather prediction model COSMO are used to locate the source regions and study the mechanisms of pollution transport in the complex topography of the HTP. We detail how polluted air masses from an atmospheric brown cloud (ABC) over South Asia reach the Tibetan Plateau within a few days. Lifting and advection of polluted air masses over the great mountain range is enabled by a combination of synoptic-scale and local meteorological processes. During the days prior to the event, winds over the Indo-Gangetic Plain (IGP) are generally weak at lower levels, allowing for accumulation of pollutants and thus the formation of ABCs. The subsequent passing of synoptic-scale troughs leads to southwesterly flow in the middle troposphere over northern and central India, carrying the polluted air masses across the Himalayas. As the IGP is known to be a hotspot of ABCs, the cross-Himalayan transport of polluted air masses may have serious implications for the cryosphere in the HTP and impact climate on regional to global scales. Since the current study focuses on one particularly strong pollution episode, quantifying the frequency and magnitude of similar events in a climatological study is required to assess the total impact. </P>
Lü,, Juan,Du, Fuping,Zhu, Rui,Huang, Yanlin,Seo, Hyo Jin Royal Society of Chemistry 2011 Journal of materials chemistry Vol.21 No.41
<P>Mn<SUP>2+</SUP>-doped phosphates Na<SUB>2</SUB>CaMg<SUB>1−<I>x</I></SUB>Mn<SUB><I>x</I></SUB>(PO<SUB>4</SUB>)<SUB>2</SUB> (<I>x</I> = 0.05–1.0) were prepared by conventional solid-state reaction. X-ray powder diffraction (XRD), the emission and excitation spectra, and decay measurements were employed to characterize the synthesized phosphors. The XRD patterns show that Na<SUB>2</SUB>CaMg<SUB>1−<I>x</I></SUB>Mn<SUB><I>x</I></SUB>(PO<SUB>4</SUB>)<SUB>2</SUB> (<I>x</I> = 0.05–0.3) forms the single low temperature monoclinic phase α-Na<SUB>2</SUB>CaMg(PO<SUB>4</SUB>)<SUB>2</SUB> with the crystal group of <I>P</I>2<SUB>1</SUB>/<I>c</I> (No.14). The heavily Mn<SUP>2+</SUP>-doped Na<SUB>2</SUB>CaMg<SUB>1−<I>x</I></SUB>Mn<SUB><I>x</I></SUB>(PO<SUB>4</SUB>)<SUB>2</SUB> (<I>x</I> = 0.6–1.0) crystallizes in the single high-temperature trigonal phase of β-Na<SUB>2</SUB>CaMg(PO<SUB>4</SUB>)<SUB>2</SUB> with space-group <I>P</I>3̄<I>m</I>1 (No. 164). The members with <I>x</I> = 0.3–0.5 form a series of solid solutions containing two distinct phases, α- and β-Na<SUB>2</SUB>CaMg(PO<SUB>4</SUB>)<SUB>2</SUB>. The dependence of luminescence spectra on the Mn<SUP>2+</SUP>-doping concentration in Na<SUB>2</SUB>CaMg<SUB>1−<I>x</I></SUB>Mn<SUB><I>x</I></SUB>(PO<SUB>4</SUB>)<SUB>2</SUB> (<I>x</I> = 0.05–1.0) was investigated. The great red-shift of Mn<SUP>2+</SUP> emission with increasing Mn<SUP>2+</SUP>-concentration in Na<SUB>2</SUB>CaMg(PO<SUB>4</SUB>)<SUB>2</SUB> were observed. The results are discussed in relation with the detailed crystal structure and the spectral analyses. The CIE coordinates and the luminescence decay (lifetimes) of Mn<SUP>2+</SUP> ions were discussed in order to further investigate the potential applications.</P> <P>Graphic Abstract</P><P>Na<SUB>2</SUB>CaMg<SUB>1−<I>x</I></SUB>Mn<SUB><I>x</I></SUB>(PO<SUB>4</SUB>)<SUB>2</SUB> demonstrates the low-temperature monoclinic α-phase to the high-temperature trigonal β-phase transition and the red-shift of luminescence wavelength with increasing Mn<SUP>2+</SUP>-doping (<I>x</I> = 0.05–1.0). <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1jm12854j'> </P>
LÜ,, JUNCHANG,AZUMA, YOICHI,DONG, ZHIMING,BARSBOLD, RINCHEN,KOBAYASHI, YOSHITSUGU,LEE, YUONG-NAM Cambridge University Press 2009 Geological magazine Vol.146 No.5
<B>Abstract</B><P>New material of dsungaripterid pterosaurs from the Early Cretaceous of Tatal, western Mongolia, allows the diagnoses of Dsungaripteridae and<I>Noripterus</I>to be amended. All pterosaurs found at Tatal belong to Dsungaripteridae (either<I>Dsungaripterus</I>or<I>Noripterus</I>). The name<I>Phobetor</I>is a junior synonym of<I>Noripterus</I>. The differing shapes of the anterior tips of skulls, differing tooth morphologies and the coexistence of both<I>Dsungaripterus</I>and<I>Noripterus</I>may imply that they occupied distinct ecological niches.</P>
Intracranial Stenting of Subacute Symptomatic Atherosclerotic Occlusion Versus Stenosis
Lü,, Peng-Hua,Park, Jee Won,Park, Soonchan,Kim, Jong Lim,Lee, Deok Hee,Kwon, Sun Uck,Kim, Jong Sung,Yun, Sung-Cheol,Suh, Dae Chul Ovid Technologies Wolters Kluwer -American Heart A 2011 Stroke Vol.42 No.12
<B>Background and Purpose-</B><P>Limited data are available concerning the outcome of angioplasty/stenting for subacute atherosclerotic intracranial artery occlusion, which is often associated with progressive symptom development in the salvageable brain under ischemic threat due to poor collateral blood supply.</P><B>Methods-</B><P>Among 177 patients who underwent angioplasty and/or stenting for severe symptomatic intracranial steno-occlusion, 26 had subacute atherosclerotic intracranial artery occlusion. Outcome after stenting (N=22) was assessed according to procedural success (return of antegrade flow and residual stenosis <50%), adverse event (any stroke or death) rate, and restenosis (>50%) using weighted Cox proportional hazards regression in the overall cohort and in separate subgroups.</P><B>Results-</B><P>Successful recanalization was achieved in 95%. Three adverse events (13.6%) occurred among patients undergoing stenting for occlusion, including 2 major strokes and 1 nonprocedure-related death. Good outcome (modified Rankin Scale ≤2) was achieved in 73%. In the overall cohort, no significant difference was observed between the occlusion and stenosis groups in terms of the risk of adverse events (hazard ratio for the occlusion group, 1.055; 95% CI, 0.29-3.90) or the risk of restenosis (hazard ratio for the occlusion group, 1.2; 95% CI, 0.19-7.72). A trend toward a higher rate of adverse events was observed in older age (>65 years), progressive worsening, balloon-expandable stent, and no history of a preprocedural P2Y12 assay.</P><B>Conclusions-</B><P>In a cohort of patients undergoing angioplasty/stenting for subacute atherosclerotic intracranial artery occlusion, no significant difference in the rates of adverse events was observed. However, several factors, including age, tended to be associated with a higher event rate.</P>
Lü,, Minfeng,Jo, Hongil,Oh, Seung-Jin,Ok, Kang Min Academic Press 2017 Journal of solid state chemistry Vol.256 No.-
<P><B>Abstract</B></P> <P>A series of new alkali metal cadmium selenites, A<SUB>2</SUB>Cd(SeO<SUB>3</SUB>)<SUB>2</SUB> (A = K, Rb, and Cs) and Li<SUB>2</SUB>Cd<SUB>3</SUB>(SeO<SUB>3</SUB>)<SUB>4</SUB> have been synthesized in phase pure forms through hydrothermal and solid-state reactions. Structural analyses using single crystal X-ray diffraction indicate that while A<SUB>2</SUB>Cd(SeO<SUB>3</SUB>)<SUB>2</SUB> and Li<SUB>2</SUB>Cd<SUB>3</SUB>(SeO<SUB>3</SUB>)<SUB>4</SUB> reveal layered structures consisting of CdO<SUB>6</SUB> and SeO<SUB>3</SUB> polyhedra, their symmetry, bonding modes, and the orientation of lone pairs on Se<SUP>4+</SUP> cations are different. A closer examination suggests that the observed structural variations found in the reported materials are attributed to the structure-directing effect of alkali metal cations with different sizes. Scanning electron microscopy/energy dispersive analysis by X-ray, thermogravimetric analysis, Infrared and UV–vis diffuse reflectance spectroscopy, transformation reactions under hydrothermal conditions, and local dipole moment calculations for the reported materials are also reported.</P> <P><B>Highlights</B></P> <P> <UL> <LI> New selenites, A<SUB>2</SUB>Cd(SeO<SUB>3</SUB>)<SUB>2</SUB> (A = K, Rb, and Cs) and Li<SUB>2</SUB>Cd<SUB>3</SUB>(SeO<SUB>3</SUB>)<SUB>4</SUB>, were synthesized. </LI> <LI> Complete structural determinations and full characterizations have been performed. </LI> <LI> The structural variations are due to the different size of alkali metal cations. </LI> <LI> A<SUB>2</SUB>Cd(SeO<SUB>3</SUB>)<SUB>2</SUB> transformed to Li<SUB>2</SUB>Cd<SUB>3</SUB>(SeO<SUB>3</SUB>)<SUB>4</SUB> in aqueous LiNO<SUB>3</SUB> under hydrothermal conditions. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>The size of alkali metal cations affects the direction of lone pairs on the Se<SUP>4+</SUP> between the layers.</P> <P>[DISPLAY OMISSION]</P>