142,899 research outputs found
Protaenionema Liu and Shih
No full textGenus Protaenionema Liu and Shih, gen. nov. Type species. Protaenionema fuscalatus Liu and Shih, sp. nov. Etymology. Named from a combination of the prefix pro- and Taenionema. Species included. Only the type species P. fuscalatus Liu and Shih, sp. nov. Diagnosis. Wings of normal length, brown. Lack of additional veinlets on the costal area, crossvein c–r absent; Rs and M both with two branches. Ninth sternite produced, distinctly exceeds the tenth segment, not upturned, and the distal margin rounded, tenth tergite transversely wide, sclerotized. Cerci short, multisegmented. Remarks. In the extant genera, c–r is generally present, absent only in Brachyptera and in the glacialis and contorta group of Oemopteryx (Ricker & Ross 1975). Crossvein c–r is absent in this new genus Protaenionema. It is difficult to distinguish this new genus and extant genus Brachyptera and the glacialis and contorta group of Oemopteryx according to the preserved characters of Protaenionema. Brachyptera has developed extra branches (three to five branches) of CuA and cerci with one or two segments, but these important characters are not preserved clearly in Protaenionema; similarly, the typical features (two prongs) of epiproct of Oemopteryx cannot be observed in Protaenionema. The new extinct genus Protaenionema differs from the extinct Gurvanopteryx and Positopteryx by the opaque, slightly brown wings and by the distinctly produced ninth sternite. It differs from the new Jurataenionema by having an Rs with two branches and the fuscous wings.Published as part of Liu, Yushuang, Sinitshenkova, Dong Ren Nina D. & Shih, Chung Kun, 2007, The oldest known record of Taeniopterygidae in the Middle Jurassic of Daohugou, Inner Mongolia, China (Insecta: Plecoptera), pp. 1-8 in Zootaxa 1521 on pages 4-5, DOI: 10.5281/zenodo.17745
Dataset for paper "Analysis of resonance effect for a railway track on a layered ground"
No full textData for the graphs in the paper Shih, J-Y., Thompson, D., & Ntotsios, E. (2018). Analysis of resonance effect for a railway track on a layered ground. Transportation Geotechnics. DOI:10.1016/j.trgeo.2018.07.001</span
Xeruca Shih 2015
No full text<i>Xeruca</i> Shih, 2015, status nov. <p>(Fig. 12B)</p> <p> <i>Xeruca</i> Shih, 2015: 154. Type species: <i>Uca formosensis</i> Rathbun, 1921, by original designation. Gender feminine.</p> <p> <b>Diagnosis.</b> Large-sized species (carapace width about 30 mm in adults); dorsal carapace surface without posterolateral striae; front narrow; cornea round; eyestalks slender; adult male major cheliped very large; right- or left-handed, deep fingers (with straight cutting margins>1/2 length of fingers), pollex without ventral carina, outer surface of major manus with moderate-szied to large tubercles, carpus with anterodorsal area flattened to facilitate chela flexion, setae on merus of minor cheliped long, thin; male pleonites free; pleonal locking mechanism absent; no setae on lateral margins of posterior stem region of urocardiac ossicles in gastric mill. Taiwan endemic.</p> <p> <b>Species included</b>:</p> <p> <i>Xeruca formosensis</i> (Rathbun, 1921).</p> <p> <b>Remarks.</b> Although Rathbun described this large endemic Taiwanese species in Rathbun (1921), it was not well known until the work of Shih et al. (1999). Crane (1975) placed it with <i>U. tetragonon</i> and the <i>U. vocans</i> species-complex, in <i>Thalassuca</i> (= <i>Gelasimus</i>), although she had examined only a few specimens. Shih et al. (1999) suggested that it was closely related to <i>Tubuca</i>, but cautioned that more study was needed to confirm its status. Shih (2015) recently established a separate taxon <i>Xeruca</i> for this species based on morphological (see Rosenberg, 2001) and molecular evidence. The present work (Fig. 2) and Shih (2015) show <i>Xeruca</i> to be basal to the main <i>Tubuca</i> clade which confirms earlier relationship speculation (Crane, 1975; Shih et al., 1999; Rosenberg, 2001). The monotypic <i>Xeruca</i> is confined to Taiwan Island and the adjacent Penghu Islands, and thus has the smallest distribution of any genus in the Ocypodidae (Fig. 4).</p>Published as part of <i>Shih, Hsi-Te, Ng, Peter K. L., Davie, Peter J. F., Schubart, Christoph D., Türkay, Michael, Naderloo, Reza, Jones, Diana & Liu, Min-Yun, 2016, Systematics of the family Ocypodidae Rafinesque, 1815 (Crustacea: Brachyura), based on phylogenetic relationships, with a reorganization of subfamily rankings and a review of the taxonomic status of Uca Leach, 1814, sensu lato and its subgenera, pp. 139-175 in Raffles Bulletin of Zoology 64</i> on page 159, DOI: <a href="http://zenodo.org/record/5355087">10.5281/zenodo.5355087</a>
Petruca Shih, Ng & Christy 2015
No full textPetruca Shih, Ng & Christy, 2015, status nov. (Fig. 10F) Petruca Shih, Ng & Christy, 2015: 476. Type species: Gelasimus panamensis Stimpson, 1859, by original designation. Gender feminine. Diagnosis. Medium-sized species (carapace width about 15 mm in adults); carapace widest between tips of anterolateral angles; dorsal carapace surface almost flat, smooth, with posterolateral striae; front broad; cornea round; eyestalks slender; orbital floor with spinous tubercle near inner corner; adult male major cheliped very large, right- or left-handed, pollex without ventral carina, major chela smooth in inner or outer surfaces, with posterior extension of manus; tips of minor fingers of both sexes with brush of long setae; male pleonites free; pleonal locking mechanism absent; gastric mill with 2 large brownish setae at base of posterior tooth plate. Confined to the East Pacific coasts of the Americas. Species included: Petruca panamensis (Stimpson, 1859). Remarks. Gelasimus panamensis Stimpson, 1859, has been placed either in Minuca or Leptuca, but Shih et al. (2015) established a new subgenus for it based on a number of unusual characters, e.g., the relatively flat dorsal carapace surface, the posterior extension of the major manus, the smooth inner and outer surfaces of the major chela, the brush of long stiff setae on the finger tips of the minor cheliped, the armature at the inner corner of the orbital floor, and the characteristic urocardiac ossicles of the gastric mill. In addition, its ecology and behavior are peculiar for fiddler crabs, e.g. lives on cobble beaches rather than sandy-muddy substrates, has no deep or permanent burrows, and swallow food particles directly (see Shih et al., 2015). The distribution is limited to the Pacific side of Central America and northern South America (Fig. 4).Published as part of Shih, Hsi-Te, Ng, Peter K. L., Davie, Peter J. F., Schubart, Christoph D., Türkay, Michael, Naderloo, Reza, Jones, Diana & Liu, Min-Yun, 2016, Systematics of the family Ocypodidae Rafinesque, 1815 (Crustacea: Brachyura), based on phylogenetic relationships, with a reorganization of subfamily rankings and a review of the taxonomic status of Uca Leach, 1814, sensu lato and its subgenera, pp. 139-175 in Raffles Bulletin of Zoology 64 on page 156, DOI: 10.5281/zenodo.535508
PROBABILITY-BASED SIMULATION OF 2-D VELOCITY DISTRIBUTION AND DISCHARGE ESTIMATION IN OPEN CHANNEL FLOW
No full textA probability-based method is presented that can be used to simulate 2-D velocity distribution in rectangular open channels and to estimate the flow discharge. The method is based on Chiu's velocity distribution equation. A technique for estimating a parameter of 2-D velocity equation has been developed, by which the 2-D velocity distribution in rectangular open channels can be simulated by using one or several velocity samples, or even without using any velocity data. The present study also developed an efficient method of discharge estimation in rivers, which is applicable regardless of whether flow is steady or unsteady. It only requires a quick velocity sampling. The relation between the surface velocity and the vertical mean velocity has been studied. It can be used for developing a non-contact method of discharge measurement.Under the same framework of analysis, a new slope-area method has been developed to determine the flow discharge. It can reduce errors due to the uncertainties in Manning's n and the energy coefficient that exist in the widely-used slope-area method
Development of a cluster deposition process for fabricating quantum dot composite materials
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1996.Includes bibliographical references.by Shih-Tung Ngiam.Ph.D
Protaenionema fuscalatus Liu and Shih, sp. nov.
No full textProtaenionema fuscalatus Liu and Shih, sp. nov. Figs. 6–7 Etymology. The species name is taken from a combination of the Latin fuscus (meaning dark) and the Latin alatus (meaning winged). Materials. Holotype, sex unknown. CNU, NMDHG 55, a well–preserved body with part of wings. Description. Length of body 17 mm, to tip of wings 21 mm, color dark. Head large, subtriangular, the basal part twice as wide as the distal; antennae shorter than body. Thorax distorted and compressed laterally, structure unclear. Forewing length 16 mm, opaque, fuscous. Vein Sc unites with R at 2 / 3 total wing length. Crossevein c–r absent, Rs oblique at the base, 2 –branched, forked distal to cord. Vein M 2 –branched from middle of wing, its branches nearly twice as long as Rs branches. Crossvein rs–m straight, parallels r–rs, connecting Rs proximal to r–rs, terminating at the proximal 1 / 3 of MA. Crossvein m–cua straight, connecting M stem and CuA stem. Branches of CuA not discernable, only the distal part of first branch of CuA preserved. At least 5 crossveins at the median area. Abdomen with 10 visible segments, almost twice as long as thorax. Every segment is of almost same width except for the last two segments, and three to eight segments are relative longer than first two segments. The ninth sternite produced, greatly exceeding the 10 th segment, its tip not upturned, broadly round; the 10 th tergite short, sclerotized. Cerci short, multisegmented, its segments faint. Legs robust, coxa and trochanter wide, femur short and brawny, nearly twice as wide as tibia, tibia slen- der, tarsi long, half length of tibia, the first segment slightly longer than the second one which is equal to the third segment. Claw short, wide basally.Published as part of Liu, Yushuang, Sinitshenkova, Dong Ren Nina D. & Shih, Chung Kun, 2007, The oldest known record of Taeniopterygidae in the Middle Jurassic of Daohugou, Inner Mongolia, China (Insecta: Plecoptera), pp. 1-8 in Zootaxa 1521 on pages 5-6, DOI: 10.5281/zenodo.17745
Jembra kuanae Shih, sp. nov.
No full text<i>Jembra kuanae</i> Shih sp. nov. <p>(Figs. 2, 3)</p> <p> <b>Coloration:</b> General color brown (Fig. 2 A). Tegmen without markings (Fig. 2 B); wing hyaline, veins brown, apical area with brown pubescence except apical cells. Two color variations on head (Figs. 2 D, 2E), pronotum and mesoscutellum: dark brown type with irregular dark brown mottles (Fig. 2 E), and yellowish brown type with one obviously inverted and yellowish V-shaped stripe (Fig. 2 D).</p> <p> <b>Structure:</b> Head width: body width: body length= 1:1.6:3.2. Head in ventral view rhombus shaped (Fig. 3 B), as long as wide; head in dorsal view triangular (Fig. 3 A), about 2.6 times as wide as long. Head subequal to pronotum at level of anterior margin, about 1.04:1.0. Frons with a median longitudinal carina and 10 transverse ridges in ventral view (Fig. 3 B). Expanded flagellar base with 4 plate-shaped basiconic sensillae on ventrolateral side. Rostrum nearly extended to apex of middle trochanters. Pronotum width at widest part greater than median length by about 1.5: 1.0. Tegmen densely punctured (Fig. 3 D) with pits about 0.1 mm in diameter; 3 times as long as wide, AM (length of anal margin): PM (length of posterior margin): LT (length of tegmen) = 1.0: 3.0: 3.9. Wing with 3 apical cells (Fig. 3 E). Hind tibia with two lateral spines, distal one about 2.0–2.5 times as long as basal one; apical spines arranged into 2 rows, upper row composed of 11 spines, lower one composed of 12 spines. First hind tarsomere with apical spines arranged in two rows (Figs. 2 C, 3H), upper row composed of 18–21 spines, lower one composed of 7–12 spines.</p> <p> <b>Male Genitalia:</b> Pygofer in lateral view subquadrate (Fig. 3 I), about 1.3 times wider than long; basal margin of pygofer straight downward, then protruding at ventral third; pygofer ventral view oval (Fig. 3 J); dorsal process of pygofer (dp) in lateral view cone like, ventrally directed (Fig. 3 I); ventral process of pygofer (vp) (= genital plate) in lateral view, about 0.7 times longer than posterior margin of pygofer; ventral processes of pygofer in ventral view bilobed, acute at tip and direct mesade (Fig. 3 J). Abdominal segment X cylindrical, subequal to the abdominal tergite of segment XI (XIt) in length. Aedeagus T-shaped (Figs. 3 O–P) in both dorsal and ventral views, joined with basal part and apical winged plate; basal part of aedeagus short in lateral view, cylindrical, and membranous; apical winged plate somewhat hardened; transversely enlarged at caudal view, widest at middle and with a obviously concave gonopore (Fig. 3 N). Genital style triangular, basal part narrow and gradually widening to apex (Figs. 3 K–L).</p> <p> <b>Measurements:</b> Body length (from apex of vertex to tip of tegmen): 3, 7.9 ± 0.2 mm (n =17); Ƥ, 8.5 ± 0.1 mm (n =2); Body width: 3, 3.8 ± 0.3 mm (n =17); Ƥ, 3.9 ± 0.3 mm (n =2).</p> <p> <b>Holotype: Male, TAIWAN</b>, Taichung, Wanfeng Hill, XII. 1984, K. S. Lin & K. C. Chou, Malaise trap; Holotype depository: TARI.</p> <p> <b>Paratypes: TAIWAN</b>, 1 male, Taichung, Wanfeng Hill, II. 1984, K. S. Lin & K. C. Chou, Malaise trap (TARI); 5 males, 1 female, Taichung, Wanfeng Hill, III. 1984, K. S. Lin & K. C. Chou, Malaise trap (TARI); 2 males, Taichung, Wanfeng Hill, V. 1984, K. S. Lin & K. C. Chou, Malaise trap (TARI); 1 male, Taichung, Wanfeng Hill, VII. 1984, K. S. Lin & K. C. Chou, Malaise trap (TARI); 3 males, 1 female, Taichung, Wanfeng Hill, VIII. 1984, K. S. Lin & K. C. Chou, Malaise trap (TARI); 1 male, Taichung, Wanfeng Hill, XII. 1984, K. S. Lin & K. C. Chou, Malaise trap; 1 male, Nantou, Chushan, 24-IX-1999, H. T. Shih (TARI); 1 male, Nantou, Chushan, 24-IX-1999, H. T. Shih (Institute of Zoology, Chinese Academy of Sciences, China); 1 male, Nantou, Chushan, 24-IX-1999, H. T. Shih (Canadian National Collection of Insects, Ottawa, Canada); 1 male, Nantou, Chushan, 24-IX-1999, H. T. Shih (National Museum of Natural Science, Taiwan, ROC.).</p> <p> <b>Etymology:</b> Named for the first author’s mother K. C. Kuan.</p> <p> <b>Distribution:</b> Taiwan.</p> <p> <b>Host plants:</b> Unknown.</p> <p> <b>Remarks:</b> This species can be distinguished easily from other <i>Jembra</i> species by the following characteristics: (1) antenna with 4 plate-shaped basiconic sensillae (Figs. 2 G–H) on the expanded flagellar base; (2) pronotum without obvious lateral carinae, median carina interrupted by some longitudinal wrinkles on the anterior margin (Fig. 3 A); (3) frons with median longitudinal carina (Fig. 3 B); (4) wing with 3 apical cells and without pubescence in apical cells (Fig. 3 E); (5) the first tarsus with apical spines arranged in 2 rows (Figs. 2 C, 3H); (6) the dorsal process of pygofer conical (Fig. 3 I); (7) genital style triangular (Figs. 3 K–L), without distinct slender inner and outer processes; (8) apical portion of aedeagus winged, and each lateral tip of winged portion directed ventrad (Figs. 3 O–P).</p>Published as part of <i>Shih, Hsien-Tzung, Liang, Ai-Ping & Yang, Jeng-Tze, 2009, The genus Jembra Metcalf and Horton from Taiwan with descriptions of two new species and the nymph of J. taiwana sp. nov. (Hemiptera: Cercopoidea: Aphrophoridae), pp. 29-40 in Zootaxa 1979</i> on pages 33-36, DOI: <a href="http://zenodo.org/record/185235">10.5281/zenodo.185235</a>
Society of Composers Region VI Conference - Concert 10 Saturday, February 11, 2006 8:00 p.m. Duncan Recital Hall
No full textProgram: Circle Dance / Burton Beerman -- Small Blue Marble / David Heuser -- Plum Blossoms / Chen Shih-Hui -- Mo Xie / Hu Xio-ou -- Icefield Sonnets / Pierre Jalbert.No program is available for this performance. No performer information available
Tu Fu and Kao Shih
No full textKao Shih (d. 765) was one of the oldest and closest of Tu Fu's friends. Their association began when Tu Fu was in his twenties, and Kao Shih was over thirty, and lasted for the next twenty years or so. But although Tu Fu greatly admired the poetic ability of Kao Shih, there were marked differences in the ways of thinking of the two men. These differences are evident in the poems composed when Kao Shih, Tu Fu, and their friends visited the Tz'u-en 慈恩 Temple in Ch'ang-an and climbed the pagoda there. But they are perhaps most clearly shown in the contrast between Kao Shih's poem "Li Yun-nan cheng man shih", written in 752 in celebration of Li Mi's conquest of Cochin China, and Tu Fu's "Ping-ch'e-hsing" 兵車行 written in the same year. While Tu Fu describes the hardships inflicted upon the people by such military expeditions, Kao Shih merely praises the achievements of his friend, the official Li Mi, and shows no sympathy for the plight of the soldiers. Moreover, if the histories of the period are to be believed, Li's "victory" was actually a defeat which he disguised to appear as its opposite. Kao Shih's poems are often described as patriotic, but it would appear that, like Ts'en Ts'an 岑参, he journeyed to the border regions on his own initiative merely in search of fame, and had little concern for the welfare of the people as a whole. Thus when Tu Fu praised Kao Shih, it was for his beauty of diction and fame. It was praise of a different kind from that which he gave to the poetic works of men like Yüan Chieh or Li Po
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