421 research outputs found
sj-pdf-1-iji-10.1177_03946320221086079 – Supplemental Material for Evodiamine suppresses the progression of non-small cell lung carcinoma via endoplasmic reticulum stress-mediated apoptosis pathway <i>in vivo</i> and <i>in vitro</i>
No full textSupplemental Material, sj-pdf-1-iji-10.1177_03946320221086079 for Evodiamine suppresses the progression of non-small cell lung carcinoma via endoplasmic reticulum stress-mediated apoptosis pathway in vivo and in vitro by Yuting Li, Yuming Wang, Xiaoqun Wang, Lulu Jin, Lu Yang, Jinli Zhu, Hongwu Wang, Fang Zheng, Huantian Cui, Xiaojiang Li and Yingjie Jia in International Journal of Immunopathology and Pharmacology.</p
A study of film music by Philip Glass and Arvo Pärt
No full textThis research paper focuses on two minimalist-influenced composers’ film music: Arvo
Pärt’s
Spiegel im Spiegel
(1978) and
Für Alina
(1976), both used in the movie
Gerry
(2002), and
Philip Glass’s music for the movie
The Hours
(2002). Arvo Pärt and Philip Glass are considered
two of the most influential composers active today.
My research explores the use of minimalist-influenced music in those two movie scores
through musical and visual analyses. Furthermore this thesis discusses piano performance issues.
Chapter I is an introduction containing brief biographies of the two composers and their
relationship with film music. Chapter II discusses Arvo Pärt’s
Spiegel im Spiegel
and
Für Alina
and their usage in the film
Gerry, and provides performance suggestions. Chapter III provides
analysis and performance suggestions for Philip Glass’s film music for The Hours
and the soundtrack’s function in the film. Chapter IV provides a conclusion.
In my project recital, I will perform Arvo Pärt’s
Spiegel im Spiegel
in a version for violin and piano, his
Für Alina
for piano, and selections from Philip Glass’s soundtrack for
The Hours
in an arrangement for solo piano by Michael Riesman and Nico Mühly.U of I Only Restriction set for Item 105972 on 2018-05-18T21:21:01Z with date by [email protected] by David Butler ([email protected]) on 2018-05-18T21:32:22Z
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The Image of the Change: From the I Ching to the Evolution of Chaos
No full textThis article is dedicated to artistic explorations of change, with the I Ching (The Book of Changes) as a stepping stone. The author uses modern mathematics to identify the basic types of change in the I Ching codes and to build a bottom-up I Ching systemization with an associated aesthetic principle. Moreover, the author introduces other (chaotic) types of change to sparsely fill the gap between the basic I Ching orders and the ultimate Change, allowing artistic speculation reflecting the evolution of many types of change by means of digital simulations, 3D volumetric display, etc
Indirect detection of wideline magic angle spinning solid-state NMR spectra of spin-5/2, −7/2, and −9/2 half-integer quadrupolar nuclei
No full textQuadrupolar nuclei with a nuclear spin I > 1/2 account for ~73% of all NMR-active nuclei. The quadrupolar interaction broadens the solid-state NMR signals, frequently resulting in low resolution and poor sensitivity. Here, we present a theoretical and experimental investigation of the use of magic angle spinning (MAS) 1H{X} double-echo resonance-echo saturation-pulse double resonance (DE-RESPDOR) solid-state NMR experiments for the indirect detection of n half-integer quadrupolar nuclei with spin > 3/2 (spin 5/2, 7/2, or 9/2 nuclei). In these experiments, plotting the observed dephasing of the detected spin as a function of the transmitter offset of the indirectly detected spin allows for the reconstruction of the spectrum of the quadrupolar nucleus. The achievable dephasing levels and the lineshapes of solid-state NMR spectra of the indirectly detected nuclei were predicted using numerical simulations. We demonstrate 1H detection of 127I (I = 5/2), 139La (I = 7/2), and 115In (I = 9/2) nuclei in BaI2.2H2O (barium iodide dihydrate), La(BH4)3(THF)3 (tris(borohydride)tris(tetrahydrofuran)lanthanum(III)), and In(OH)3 (indium(III) hydroxide), respectively. The observed improvements or reductions in sensitivity with indirect detection are related to the proportion of 1H T1 to quadrupolar nucleus T1, alongside the quadrupolar nucleus's spin quantum number and gyromagnetic ratio (y). Additionally, the indirect detection experiments confirm the existence of dipolar or scalar couplings between the detected nucleus and the quadrupolar nucleus of interest, providing important structural information. Numerical simulations suggest these methods are also potentially applicable to quadrupolar nuclei having large quadrupolar coupling constants.This is a manuscript of an article published as Lamahewage, Sujeewa NS, Yuting Li, Aaron D. Sadow, and Aaron J. Rossini. "Indirect Detection of Wideline Magic Angle Spinning Solid-state NMR Spectra of Spin-5/2,-7/2, and-9/2 Half-Integer Quadrupolar Nuclei." Solid State Nuclear Magnetic Resonance (2025): 102032. doi: https://doi.org/10.1016/j.ssnmr.2025.102032.Solid-state NMR experiments and simulations were supported by the US Department of Energy (DOE), Office of Science, Basic Energy Sciences, Materials Science and Engineering Division (A.J.R., S.N.S.L). Synthesis and standard characterization of the lanthanum compound was supported by the US Department of Energy (DOE), Office of Science, Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division (A.D.S. and Y.L.). The Ames Laboratory is operated for the US DOE by Iowa State University under Contract DEAC02- 07CH11358. A.J.R. acknowledges additional support from the Alfred P. Sloan Foundation through a Sloan research fellowship
Stenopsocus externus Banks
No full text<i>Stenopsocus externus</i> Banks <p>(Figs. 9–10)</p> <p> <i>Stenopsocus externus</i> Banks, 1937: 259. Type locality: China (Taiwan: Taihoku).</p> <p> <b>Diagnosis.</b> This species is characterized by the antenna with yellowish scape and pedicel, whitish 10–13 segments of antenna, and yellowish pterostigma with narrow brown stripe on the half of posterior margin.</p> <p> <b>Adult male.</b> Body (Fig. 9 a) length 2.41 mm, length from postclypeus to wing tip 4.13 mm. IO: 0.38 mm, d: 0.28 mm, IO/d=1.36, f1: 0.71 mm, f2: 0.55 mm, f3: 0.45 mm, FWL: 3.21 mm, FWW: 1.10 mm, HWL: 2.38 mm, HWW: 0.72 mm, t1: 0.35 mm, t2: 0.13 mm.</p> <p>Colour (in alcohol). Head (Figs. 9 b, c) dark brown, vertex with a yellowish subtrapezoid area, frontal area yellowish brown, antenna with yellowish scape and pedicel, and 10–13 segmenst whitish. Postclypeus blackish brown, labrum laterally much paler, apex of maxillary palpus pale brown, remaining segments of maxillary palpus whitish.</p> <p>Thorax brown or dark brown. Leg yellowish; hind leg with yellowish brown tibia. Abdomen whitish. Genital segments dark brown.</p> <p>Forewings (Fig. 9 d) transparent. R and R1 dark brown, anterior margin of pterostigma yellowish, other veins brown. Yellowish pterostigma with brown stripe on half of R1. Hindwing (Fig. 9 e) immaculate.</p> <p>Genitalia (Figs. 10 a–d) strongly sclerotized. Epiproct (Fig. 10 b) subtriangular with a round apex. Paraproct entire sclerotized, with 30 trichobothria. Endophallus (Fig. 10 d) strongly sclerotized, external parameres robust, with some punctures on broadened apex, not exceeding apex of aedeagal arch; aedeagal arch narrow. Hypandrium (Fig. 10 c) strongly sclerotized.</p> <p> <b>Adult female.</b> Body (Fig. 9 b) length 3.16 mm, length from postclypeus to wing tip 4.48 mm. IO: 0.55 mm, d: 0.20 mm, IO/d=2.75, f1: 0.89 mm, f2: 0.70 mm, f3: 0.58 mm, FWL: 3.21 mm, FWW: 1.04 mm, HWL: 2.38 mm, HWW: 0.65 mm, t1: 0.32 mm, t2: 0.12 mm.</p> <p>Colour generally similar to male, but slightly darker. Head (Figs. 9 g, h) with a yellowish area on vertex. Forewing (Fig. 9 i), R without marking, half of R1 with dark brown marking, and hindwing (Fig. 9 j) immaculate. Abdomen purplish brown; genital segments blackish brown.</p> <p>Genitalia (Figs. 10 e–i) strongly sclerotized. Epiproct (Fig. 10 f) subtriangle with round apex. Paraproct (Fig. 10 e) with 19 trichobothria. Gonapophyses (Fig. 10 h) with external valve reduced, trapezoid, fused with dorsal valve; ventral valve narrowly elongate, with acute apex. Subgenital plate (Fig. 10 g) with sclerotized area separated into two parts, an obvious sclerotized stripe along margin of subgenital plate to connect two parts.</p> <p> <b>Specimens examined. CHINA</b> (<b>TAIWAN)</b>, Pingtung, Dahanshan, 1 female, 2.vi.2013, Liang Feiyang; Yilan, Wushibi, 1 female, 8.vi.2013, Luo Xingyu. <b>CHINA</b>, Henan, Xinxian, Liankangshan, Jiulongtan, 1 male, 2 females, 18.vi.2014, Liu Xingyue; Guangxi, Fangcheng, Jinhuacha National Reserve, 1 male, Liu Xingyue; Guangxi, Wuming, Mt. Damingshan, 1 male, 6.vi.2014, Liu Xingyue; Hubei, Yingshan, Taohuachong, 1 male, 1 female, 23.v.2014, Zhang Wei; Shanghai, 1 female, iii.2013, Xu Jin; Guangxi, Nanning, 1 male, 24.v.1984, Yang Ding; Nanning, 1 female, 19.v.1984, Li Fasheng; <b>VIETNAM</b>: Kon Tum, Chu Mom Ray National Park, 1 female, 1.viii.2012, Liang Feiyang.</p> <p> <b>Distribution.</b> China (Fujian, Gansu, Guangxi, Guizhou, Hebei, He’nan, Hubei, Hu’nan, Sichuan, Shanghai, Taiwan, Zhejiang); Vietnam (Kon Tum).</p> <p> <b>Remarks.</b> In the original description, Banks (1937) only recorded <i>S. formosanus</i> and <i>S. externus</i> from Taiwan. Subsequently, Li (2002) recorded <i>S. formosanus</i> from Zhejiang and <i>S. externus</i> from several provinces in mainland China, i.e. Fujian, Gansu, Guangxi, Guizhou, Hebei, Hubei, Hunan, Sichuan, Shanghai. Here we record <i>S. externus</i> from Vietnam for the first time.</p> <p> Based on the concept of Banks (1937), <i>S. formosanus</i> and <i>S. externus</i> can be distinguished based on the antennal colour and forewing marking patterns. <i>S. externus</i> has yellowish pedicel and scape, and it has a brown marking only along half of R1; <i>S. formosanus</i> has dark brown antenna, and it has a brown marking along entire R1. Although, the interspecific genetic divergence between these two species is 0.00%, the genitalia of <i>S. externus</i> differ from those of <i>S. formosanus</i> by the subtriangle male epipcrot and the entire sclerotized paraproct. Thus, we still consider they are different species.</p>Published as part of <i>Liang, Feiyang, Dai, Yuting, Yue, Lu, Li, Fasheng & Liu, Xingyue, 2015, DNA barcoding and taxonomic review of the barklouse genus Stenopsocus (Psocoptera: Stenopsocidae) from Taiwan, pp. 191-209 in Zootaxa 4057 (2)</i> on pages 199-201, DOI: 10.11646/zootaxa.4057.2.2, <a href="http://zenodo.org/record/236187">http://zenodo.org/record/236187</a>
Stenopsocus externus Banks
No full text<i>Stenopsocus externus</i> Banks <p>(Figs. 9–10)</p> <p> <i>Stenopsocus externus</i> Banks, 1937: 259. Type locality: China (Taiwan: Taihoku).</p> <p> <b>Diagnosis.</b> This species is characterized by the antenna with yellowish scape and pedicel, whitish 10–13 segments of antenna, and yellowish pterostigma with narrow brown stripe on the half of posterior margin.</p> <p> <b>Adult male.</b> Body (Fig. 9 a) length 2.41 mm, length from postclypeus to wing tip 4.13 mm. IO: 0.38 mm, d: 0.28 mm, IO/d=1.36, f1: 0.71 mm, f2: 0.55 mm, f3: 0.45 mm, FWL: 3.21 mm, FWW: 1.10 mm, HWL: 2.38 mm, HWW: 0.72 mm, t1: 0.35 mm, t2: 0.13 mm.</p> <p>Colour (in alcohol). Head (Figs. 9 b, c) dark brown, vertex with a yellowish subtrapezoid area, frontal area yellowish brown, antenna with yellowish scape and pedicel, and 10–13 segmenst whitish. Postclypeus blackish brown, labrum laterally much paler, apex of maxillary palpus pale brown, remaining segments of maxillary palpus whitish.</p> <p>Thorax brown or dark brown. Leg yellowish; hind leg with yellowish brown tibia. Abdomen whitish. Genital segments dark brown.</p> <p>Forewings (Fig. 9 d) transparent. R and R1 dark brown, anterior margin of pterostigma yellowish, other veins brown. Yellowish pterostigma with brown stripe on half of R1. Hindwing (Fig. 9 e) immaculate.</p> <p>Genitalia (Figs. 10 a–d) strongly sclerotized. Epiproct (Fig. 10 b) subtriangular with a round apex. Paraproct entire sclerotized, with 30 trichobothria. Endophallus (Fig. 10 d) strongly sclerotized, external parameres robust, with some punctures on broadened apex, not exceeding apex of aedeagal arch; aedeagal arch narrow. Hypandrium (Fig. 10 c) strongly sclerotized.</p> <p> <b>Adult female.</b> Body (Fig. 9 b) length 3.16 mm, length from postclypeus to wing tip 4.48 mm. IO: 0.55 mm, d: 0.20 mm, IO/d=2.75, f1: 0.89 mm, f2: 0.70 mm, f3: 0.58 mm, FWL: 3.21 mm, FWW: 1.04 mm, HWL: 2.38 mm, HWW: 0.65 mm, t1: 0.32 mm, t2: 0.12 mm.</p> <p>Colour generally similar to male, but slightly darker. Head (Figs. 9 g, h) with a yellowish area on vertex. Forewing (Fig. 9 i), R without marking, half of R1 with dark brown marking, and hindwing (Fig. 9 j) immaculate. Abdomen purplish brown; genital segments blackish brown.</p> <p>Genitalia (Figs. 10 e–i) strongly sclerotized. Epiproct (Fig. 10 f) subtriangle with round apex. Paraproct (Fig. 10 e) with 19 trichobothria. Gonapophyses (Fig. 10 h) with external valve reduced, trapezoid, fused with dorsal valve; ventral valve narrowly elongate, with acute apex. Subgenital plate (Fig. 10 g) with sclerotized area separated into two parts, an obvious sclerotized stripe along margin of subgenital plate to connect two parts.</p> <p> <b>Specimens examined. CHINA</b> (<b>TAIWAN)</b>, Pingtung, Dahanshan, 1 female, 2.vi.2013, Liang Feiyang; Yilan, Wushibi, 1 female, 8.vi.2013, Luo Xingyu. <b>CHINA</b>, Henan, Xinxian, Liankangshan, Jiulongtan, 1 male, 2 females, 18.vi.2014, Liu Xingyue; Guangxi, Fangcheng, Jinhuacha National Reserve, 1 male, Liu Xingyue; Guangxi, Wuming, Mt. Damingshan, 1 male, 6.vi.2014, Liu Xingyue; Hubei, Yingshan, Taohuachong, 1 male, 1 female, 23.v.2014, Zhang Wei; Shanghai, 1 female, iii.2013, Xu Jin; Guangxi, Nanning, 1 male, 24.v.1984, Yang Ding; Nanning, 1 female, 19.v.1984, Li Fasheng; <b>VIETNAM</b>: Kon Tum, Chu Mom Ray National Park, 1 female, 1.viii.2012, Liang Feiyang.</p> <p> <b>Distribution.</b> China (Fujian, Gansu, Guangxi, Guizhou, Hebei, He’nan, Hubei, Hu’nan, Sichuan, Shanghai, Taiwan, Zhejiang); Vietnam (Kon Tum).</p> <p> <b>Remarks.</b> In the original description, Banks (1937) only recorded <i>S. formosanus</i> and <i>S. externus</i> from Taiwan. Subsequently, Li (2002) recorded <i>S. formosanus</i> from Zhejiang and <i>S. externus</i> from several provinces in mainland China, i.e. Fujian, Gansu, Guangxi, Guizhou, Hebei, Hubei, Hunan, Sichuan, Shanghai. Here we record <i>S. externus</i> from Vietnam for the first time.</p> <p> Based on the concept of Banks (1937), <i>S. formosanus</i> and <i>S. externus</i> can be distinguished based on the antennal colour and forewing marking patterns. <i>S. externus</i> has yellowish pedicel and scape, and it has a brown marking only along half of R1; <i>S. formosanus</i> has dark brown antenna, and it has a brown marking along entire R1. Although, the interspecific genetic divergence between these two species is 0.00%, the genitalia of <i>S. externus</i> differ from those of <i>S. formosanus</i> by the subtriangle male epipcrot and the entire sclerotized paraproct. Thus, we still consider they are different species.</p>Published as part of <i>Liang, Feiyang, Dai, Yuting, Yue, Lu, Li, Fasheng & Liu, Xingyue, 2015, DNA barcoding and taxonomic review of the barklouse genus Stenopsocus (Psocoptera: Stenopsocidae) from Taiwan, pp. 191-209 in Zootaxa 4057 (2)</i> on pages 199-201, DOI: 10.11646/zootaxa.4057.2.2, <a href="http://zenodo.org/record/236187">http://zenodo.org/record/236187</a>
Author Name Disambiguation on Heterogeneous Information Network with Adversarial Representation Learning
No full textAuthor name ambiguity causes inadequacy and inconvenience in academic information retrieval, which raises the necessity of author name disambiguation (AND). Existing AND methods can be divided into two categories: the models focusing on content information to distinguish whether two papers are written by the same author, the models focusing on relation information to represent information as edges on the network and to quantify the similarity among papers. However, the former requires adequate labeled samples and informative negative samples, and are also ineffective in measuring the high-order connections among papers, while the latter needs complicated feature engineering or supervision to construct the network. We propose a novel generative adversarial framework to grow the two categories of models together: (i) the discriminative module distinguishes whether two papers are from the same author, and (ii) the generative module selects possibly homogeneous papers directly from the heterogeneous information network, which eliminates the complicated feature engineering. In such a way, the discriminative module guides the generative module to select homogeneous papers, and the generative module generates high-quality negative samples to train the discriminative module to make it aware of high-order connections among papers. Furthermore, a self-training strategy for the discriminative module and a random walk based generating algorithm are designed to make the training stable and efficient. Extensive experiments on two real-world AND benchmarks demonstrate that our model provides significant performance improvement over the state-of-the-art methods
Stenopsocus aphidiformis Enderlein
No full text<i>Stenopsocus aphidiformis</i> Enderlein <p>(Figs. 5–6)</p> <p> <i>Stenopsocus aphidiformis</i> Enderlein, 1906: 249. Type locality: Japan (Kagoshima).</p> <p> <b>Diagnosis.</b> This species is characterized by pale yellowish brown body (in alcohol), forewing with setae on Cu2 and transparent forewing without marking on the pterostigma. Living individual is green.</p> <p> <b>Adult male.</b> Body (Fig. 5 a) length 2.75 mm, length from postclypeus to wing tip 5.15 mm. IO: 0.31 mm, d: 0.29 mm, IO/d=1.07, f1: 0.71 mm, f2: 0.66 mm, f3: 0.58 mm, FWL: 4.06 mm, FWW: 1.65 mm, HWL: 2.90 mm, HWW: 1.08 mm, t1: 0.43 mm, t2: 0.13 mm.</p> <p>Colour (in alcohol). Body nearly whitish, Head (Figs. 5 c, d) with a brown marking around ocelli. Antenna brown. Mouthpart much paler, apex of maxillary palpus pale brownish, remaining segments of maxillary palpus whitish.</p> <p>Thorax dorsally dark brown. Leg much paler, tibiae and tarsomeres of fore-leg pale brown. Abdomen whitish, genital segments with pale brownish, trichobothria area.</p> <p>Forewings (Fig. 5 g) transparent and immaculate. All veins yellowish brown. Cu2 with single-row setae. Hindwing (Fig. 5 h) immaculate.</p> <p>Genitalia (Figs. 6 a–d) slightly sclerotized. Epiproct (Fig. 6 b) subtriangular with a round apex. Paraproct (Fig. 6 a) with 36 trichobothria. Endophallus (Fig. 6 d) sclerotized, external parameres robust, with some punctures on broadened apex, exceeding apex of aedeagal arch; aedeagal arch narrow. Hypandrium (Fig. 6 c) slightly sclerotized.</p> <p> <b>Adult female.</b> Body (Fig. 5 b) length 3.99 mm, length from postclypeus to wing tip 7.27 mm. IO: 0.52 mm, d: 0.23 mm, IO/d=2.26, f1: 1.12 mm, f2: 1.00 mm, f3: 0.75 mm, FWL: 5.93 mm, FWW: 1.96 mm, HWL: 4.24 mm, HWW: 1.35 mm, t1: 0.59 mm, t2: 0.19 mm.</p> <p>Colour generally similar to male. Head (Figs. 5 e, f) with some brown markings on vertex and frontal area. Forewing and hindwing similar to male.</p> <p>Genitalia (Figs. 6 e–i) slightly sclerotized. Epiproct (Fig. 6 f) subtrapezoidal with round apex. Paraproct (Fig. 6 e) with 44 trichobothria. Gonapophyses (Fig. 6 h) with external valve reduced, subtriangular, perpendicular to dorsal valve, ventral valve narrowly elongate, with acute apex. Subgenital plate (Fig. 6 g) slightly sclerotized.</p> <p> <b>Specimens examined. CHINA (TAIWAN)</b>: Hualien, Pi-lu Sacred Tree (2150 m), 2 males, 7.vi.2013, Liang Feiyang; Hualien, Dayuling, 1 female, 7.vi.2013, Luo Xingyu.</p> <p> <b>Distribution.</b> China (Taiwan); Japan (Kagoshima); Russian Far East</p> <p> <b>Remarks.</b> This species differs from <i>S. niger</i> by the transparent and immaculate pterostigma.</p>Published as part of <i>Liang, Feiyang, Dai, Yuting, Yue, Lu, Li, Fasheng & Liu, Xingyue, 2015, DNA barcoding and taxonomic review of the barklouse genus Stenopsocus (Psocoptera: Stenopsocidae) from Taiwan, pp. 191-209 in Zootaxa 4057 (2)</i> on pages 195-197, DOI: 10.11646/zootaxa.4057.2.2, <a href="http://zenodo.org/record/236187">http://zenodo.org/record/236187</a>
Stenopsocus tibialis Banks
No full text<i>Stenopsocus tibialis</i> Banks <p>(Figs. 15–16)</p> <p> <i>Stenopsocus tibialis</i> Banks, 1937: 259. Type locality: China (Taiwan: Arisan, Taiheizan).</p> <p> <b>Diagnosis.</b> This species is characterized by forewing without setae on Cu2, yellowish pterostigma, R1 with narrowly brown stripe and R without markings.</p> <p> <b>Adult male.</b> Body (Fig. 15 a) length 2.89 mm, length from postclypeus to wing tip 5.12 mm. IO: 0.31 mm, d: 0.27 mm, IO/d=1.15, f1: 0.95 mm, f2: 0.72 mm, f3: 0.63 mm, FWL: 4.07 mm, FWW: 1.51 mm, HWL: 2.99 mm, HWW: 0.99 mm, t1: 0.46 mm, t2: 0.13 mm.</p> <p>Colour (in alcohol). Head (Figs. 15 c, d) dark brown, with a subtrapezoidal yellowish brown area. Postclypeus dark brown, labrum laterally much paler, apex of maxillary palpus brown, remaining segments of maxillary palpus whitish. Thorax dark brown. Legs pale yellow, with apices of femur, tibiae and tarsomeres brown.</p> <p>Forewing (Fig. 15 g) transparent, Sc and R dark brown, anterior margin of pterostigma and 1A yellow, R1 dark brown with narrow dark brown marking, not connecting to Rs. Hindwing (Fig. 15 h) immaculate.</p> <p>Genital segments (Figs. 16 a–d) strongly sclerotized. Epiproct (Fig. 16 b) subtriangular. Paraproct sclerotized around trichobothria, with 23 trichobothria. Endophallus (Fig. 16 c) strongly sclerotized, external parameres robust with some punctures on broadened apex, and not exceeding apex of aedeagal arch; aedeagal arch narrow. Hypandrium (Fig. 16 d) strongly sclerotized, with round margin.</p> <p> <b>Adult female.</b> Body (Fig. 15 b) length 3.00 mm, length from postclypeus to wing tip 5.42 mm. IO: 0.47 mm, d: 0.22 mm, IO/d=2.14, f1: 1.07 mm, f2: 0.75 mm, f3: 0.57 mm, FWL: 4.07 mm, FWW: 1.51 mm, HWL: 2.99 mm, HWW: 0.99 mm, t1: 0.46 mm, t2: 0.13 mm.</p> <p>Colour similar to male, but slightly darker. Vertex with a yellowish rectangular area. Abdomen with 1–2 segments reddish brown, and with 3–7 segments dorsally reddish brown, genital segments dark brown. Wings similar to male.</p> <p>Genital segments (Figs. 16 e–i) strongly sclerotized. Epiproct (Fig. 16 f) subtriangular. Paraproct with 22 trichobothria. External valve (Fig. 16 h) short, with a narrow apex. Sclerotized area of subgenital plate (Fig. 16 g) connecting with a narrow, sclerotized region along distal margin of subgenital plate.</p> <p> <b>Specimens examined. CHINA (TAIWAN)</b>: Hualien, Pi-lu Sacred Tree (2150 m), 5 males, 5 females, 6.vi.2013, Liang Feiyang.</p> <p> <b>Distribution.</b> China (Taiwan).</p>Published as part of <i>Liang, Feiyang, Dai, Yuting, Yue, Lu, Li, Fasheng & Liu, Xingyue, 2015, DNA barcoding and taxonomic review of the barklouse genus Stenopsocus (Psocoptera: Stenopsocidae) from Taiwan, pp. 191-209 in Zootaxa 4057 (2)</i> on pages 206-207, DOI: 10.11646/zootaxa.4057.2.2, <a href="http://zenodo.org/record/236187">http://zenodo.org/record/236187</a>
Elastic wavefield migration and tomography
No full textIncludes bibliographical references.2016 Fall.Wavefield migration and tomography are well-developed under the acoustic assumption; however, multicomponent recorded seismic data include shear waves (S-modes) in addition to the compressional waves (P-modes). Constructing multicomponent wavefields and considering multiparameter model properties make it possible to utilize information provided by various wave modes, and this information allows for better characterization of the subsurface. In my thesis, I apply popular wavefield imaging and tomography to elastic media, and propose methods to address challenges posed by elastic multicomponent wavefields and multiparameter models. The key novelty of my research consists of new elastic imaging conditions, which generate elastic images with improved qualities and clear physical meaning. Moreover, I demonstrate an elastic wavefield tomography method to obtain realistic elastic models which benefits elastic migration. Migration techniques, including conventional RTM, extended RTM, and least-squares RTM (LSRTM), provide images of subsurface structures. I propose one imaging condition that computes potential images (PP, PS, SP, and SS). This imaging condition exploits pure P- and S-modes obtained by Helmholtz decomposition and corrects for the polarity reversal in PS and SP images. Using this imaging condition, I propose methods for conventional RTM and extended RTM. The extended imaging condition makes it possible to compute angle gathers for converted waves. The amplitudes of the scalar images indicate reflectivities, which can be used for amplitude verse offset (AVO) analysis; however, this imaging condition requires knowledge of the geologic dip. I propose a second imaging condition that computes perturbation images, i.e., P and S velocity perturbations. Because these images correspond to perturbations to material properties that are angle-independent, they do not have polarity reversals; therefore, they do not need dip information for polarity correction. I use this perturbation imaging condition for LSRTM to increases the image resolution and attenuates artifacts. Since the quality of the wavefield-based migration image greatly depends on the accuracy of the material property models, I also propose elastic waveform inversion methods for multiparameter model estimation. Waveform inversion solves a non-linear problem and aims to obtain a model that best matches the predicted and observed data. My contribution to elastic waveform inversion is a petrophysical constraint term in the objective function, which imposes plausible relations between model parameters; this feasible region is assumed to be prior information which can be obtained from laboratory measurements or well logs. Such petrophysical constraint term enforces appropriate physical relationships between the model parameters. With the constraint term, I obtain realistic models that can be used for migration and reservoir characterization
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