77,870 research outputs found
Traces and shards of self-injury: Strange accounting with “Author X”
No full textIn this strange account autoethnography, three or four authors explore their lived experiences with self-injury. Strange accounting is both a post-modern style of text, and a method for keeping identities concealed when risks and secrets are in play. Author X, a post-modern place-keeper for an anonymous author who may or may not have contributed to this manuscript, introduces a new dimension and layer of concealment. With Author X in-play and under erasure, the reader will never be sure if there were three or four authors on this manuscript. Through strange accounting, a post-structuralist/postmodernist frame will be applied to understanding the self-injury experience. We frame self-injury as a social practice and, for some, an everyday norm, while remaining acutely aware of the stigma surrounding the topic of self-injury. Each of us, coupled with Author X, provide the others cover to trace stories of self-injury through the literature, our flesh, and our lives
Inpainting galactic foreground intensity and polarization maps using convolutional neural network
No full textDeep convolutional neural networks have been a popular tool for image generation and restoration. The performance of these networks is related to the capability of learning realistic features from a large dataset. In this work, we applied the problem of inpainting non-Gaussian signal, in the context of Galactic diffuse emissions at the millimetric and sub-millimetric regimes, specifically Synchrotron and Thermal Dust emission. Both of them are affected by contamination at small angular scales due to extra-galactic radio sources (the former) and to dusty star-forming galaxies (the latter). We consider the performances of a nearest-neighbors inpainting technique and compare it with two novels methodologies relying on generative Neural Networks. We show that the generative network is able to reproduce the statistical properties of the ground truth signal more consistently with high confidence level. The Python Inpainter for Cosmological and AStrophysical SOurces (PICASSO) is a package encoding a suite of inpainting methods described i n this work and has been made publicly available
Research data - Asymmetrically Clipped Absolute Value Optical OFDM for Intensity-Modulated Direct-Detection Systems
No full textThis dataset is associated with the 2017 JLT publication titled "Asymmetrically Clipped Absolute Value Optical OFDM for Intensity-Modulated Direct-Detection Systems" by Ruowen Bai et.al. This RDM includes the data set for plotting each of the result-figures of the above-mentioned paper. More explicitly, this RDM includes the data for plotting the x-axis and y-axis of a particular curve of the corresponding figure.</span
Preparation of porous slag-based geopolymer spheres by direct template route for pH buffering applications
No full textPorous slag-based geopolymer spheres with a high degree of sphericity were produced by a facile direct template route. The porosity, cellular morphology, chemical structure, specific surface area, mechanical properties as well as pH buffering capacity of the obtained spheres was investigated. The obtained slag-based geopolymer spheres with high porosity and high degree of sphericity as well as acceptable strength have potential application as pH regulators
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Hainanmezira Bai, Heiss & Cai, n. gen.
No full textHainanmezira Bai, Heiss & Cai, n. gen. Type species: Hainanmezira latiscutellata Bai, Heiss & Cai, n.sp. Diagnosis. Medium-sized brachypterous species, body oval its surface of reddish dark brown colouration, mat and granulate on head thorax and mtg I+II; mesonotum with distinct wide scutellum and polygonal wing pads fused to metanotum and mtg I+II, these fused to tergal plate separated by indistinct sutures. Aradidae taxa showing similar body structures belong to the genera Bengalaria Heiss 1982 from Nepal and northern India and Parapictinus Kormilev 1956 from Sri Lanka and India; however, in Bengalaria, the head is wider than long, shows a subrectangular pronotum and ventral spiracles II–VII; Parapictinus has antennae 2 x as long as width of head, postocular lobes rounded and no bulbous elevations on thorax and abdomen; besides it is unlikely that such flightless genera are distributed across the continent and reach Hainan Island. Therefore, we consider Hainanmezira a new genus, which is described below. Description. Head. About as wide as long; genae longer than clypeus and as long as antenniferous lobes reaching basal 1 / 3 of antennal segment I; antennae about 1.75 x as long as width of head, segment I thickest, II shortest, III longest, IV fusiform; eyes inserted in head; postocular lobes straight; rostrum as long as head. Prontum. Trapezoidal, collar ring-like; lateral margins convex converging anteriorly; disk with two ovate median callosities and lateral ridges, posterior margin sinuate. Mesonotum. Scutellum about 6 x as wide as long; lateral wing pads with anterolateral carinae; surface of scutellum roundly elevated at middle. Metanotum., mtg I+II. Fused to each other and to tergal plate, shallow sinuate sutures indicating fusion lines, a rounded median elevation on metanotum and mtg II as high as on mesonotum together forming a longitudinal ridge sloping laterally. Abdomen. Tergal plate with aroundish elevation on mtg III–IV; lateral margins subparallel or evenly rounded (Ƥ); deltg II–VII laterally reflexed and separated by sutures. Venter. Prosternum with a an inverted T-shaped median carina, meso- and metasternum smooth and flattened at middle, rugose and granulate laterally; spiracles II–VI ventral and not visible from above, VII + VIII lateral and visible. Legs. Unarmed, femora and tibiae straight, preapical comb on fore tibiae present. Etymology. Refers to Hainan Island where this interesting new genus occurs.Published as part of Bai, Xiaoshuan, Heiss, Ernst & Cai, Wanzhi, 2011, New taxa and records of flat bugs (Hemiptera: Heteroptera: Aradidae) from Hainan of China, pp. 48-58 in Zootaxa 3012 on page 55, DOI: 10.5281/zenodo.27858
The influence of tourism on the sustaining of vernacular architechtural tradition embodied in the Bai and Naxi dwellings in Yunnan, China.
No full textYunnan is an economically underdeveloped region in south-western China, in which many ethnic settlements are preserved well. Within the last two decades, many ethnic communities at a grass-roots social level have been conducting a series of tourism-related developments of Bai and Naxi dwellings in Yunnan. They are altering, restoring, rebuilding, refurbishing and renewing ordinary Bai or Naxi dwellings into multi-function dwellings, which are not only the residential homes of families, but are also capable of providing an exotic cultural experience for tourists‘ consumption. Nevertheless, Bai and Naxi dwellings are representations of a living culture, embodying a complex set of vernacular architectural traditions which have been transmitted for many generations. When the Bai and Naxi dwellings are involved in tourism development, the transmission and adaptation of these vernacular architectural traditions are changed, and the manner in which such traditions aresustained in new circumstances becomes an interesting problem. This study explores the influence of tourism development on sustaining the vernacular architectural tradition embodied in Bai and Naxi dwellings in Yunnan, China. The researcher has conducted three rounds of fieldwork, choosing 30 Bai and Naxi dwellings involved in tourism development, from four ethnic minority settlements in Yunnan, for investigation. Observation, interview and questionnaire have been applied to collect data, and template analysis has been used to analyse the data. The results of the analysis show that if tourism development is conducted mainly at a community level, itcan enhance the sustaining of the vernacular architectural tradition embodied in Bai and Naxi dwellings. In summary, the sustaining of vernacular architectural tradition is not simply influenced by the nature of tourism, but is highly dependent on the social level of the developers, the construction pattern they choose, and the socio-cultural interaction they produce
Solution of linear discrete ill-posed problems by discretized Chebyshev expansion
No full textLarge-scale linear discrete ill-posed problems are generally solved by Krylov subspace iterative methods. However, these methods can be difficult to implement so that they execute efficiently in a multiprocessor environment, because some of the computations have to be carried out sequentially. This is due to the fact that only one new basis vector of the Krylov solution subspace is generated in each iteration. It is therefore interesting to investigate the performance of other solution methods that use a solution subspace basis that can be generated in parallel and, therefore, more efficiently on many computers. This paper proposes solution methods that use a solution subspace basis that is made up of discretized Chebyshev polynomials. It compares their performance to a Krylov subspace method that is based on partial Golub-Kahan bidiagonalization of the system matrix, and to a randomized method. The application of a solution subspace basis made up of discretized Chebyshev polynomial is found to be competitive when solving linear discrete ill-posed problems in one space-dimension and for some problems in higher space-dimensions
Bai hu tong
No full text班固纂 ; 王道焜閱.In 1 case.框19.4x14.3公分, 9行20字, 白口, 左右雙邊, 單白魚尾, 版心上鐫"白虎通", 中鐫卷次, 下鐫葉次. 行間有批點.鈐"石原藏書", "山下"印.Ban Gu zuan ; Wang Daokun yue.Kuang 19.4 x 14.3 gong fen, 9 hang 20 zi, bai kou, zuo you shuang bian, dan bai yu wei, ban xin shang juan "Bai hu tong", zhong juan juan ci, xia juan ye ci. Hang jian you pi dian.Qian "Shi yuan cang shu , "Shan xia" yin
Rotundocoris obliquonotum Qian & Bai & Heiss & Liu & Cai 2019, sp. nov.
No full textRotundocoris obliquonotum Bai & Heiss, sp. nov. (Figs. 18–34) Type material. Holotype (♂): China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (IMNU). Paratypes: China, Hainan, Baisha, Yinggeling, 950 m, 7.v.2008, leg. X. S. Bai (2 ♂♂, IMNU); China, Hainan, Jianfeng, Chahekou, 217 m, 18.viii.2007, leg. X. S. Bai (3 ♂♂, 2 ♀♀, IMNU, CEHI); China, Hainan, Jianfeng, Beiganxian, 820 m, 9.viii.2007, leg. X. S. Bai (2 ♂♂ ♀, IMNU, CEHI); China, Hainan, Ledong, Jianfengling, 28.iv.2009, leg. Zhang & Yang (♀, IMNU); China, Hainan, Limu montain, 6.v.2008, leg. X. S. Bai (3 ♂♂, IMNU); China, Hainan, Jianfeng, Tianchi, 16.viii.2007, leg. Zhang & Bai (1 ♂ 1 ♀, CEHI); China, Hainan, Changjiang, Bawangling, 13.ix.2008, leg. W. J. Zhang (♀, CEHI); provided with type labels accordingly. Diagnosis. General aspect similar to Rotundocoris stenonotum sp. nov., but distinguished from the latter by wider pronotum 2.67 times as wide as long (2.53), anterolateral lobes widely rounded and protruding beyond collar (anterolateral angles produced and forming blunt lobes, reaching to anterior margin of collar); longer antennae 2.39 times as long as width of head (2.13); and across meso- and metanota medially with an elongate, subpentagonal bottle-shaped ridge with longitudinal sulcus (without longitudinal sulcus, smooth). Description of male. Head. Slightly longer than wide across eyes (0.92: 0.78); genae notched anteriorly, reaching about basal fourth of first antennal segment; clypeus strongly raised anteriorly, with tubercle near apex; antenniferous tubercles short, dilated, apices acute; antennae 2.39 times as long as width of head across eyes, length of antennal segments I to IV= 0.61: 0.34: 0.58: 0.34; eyes small, convex; postocular tubercles small and not reaching outer margin of eyes, postocular lobes strongly constricted posteriorly; vertex with granulate carinae flanked by a pair of large, ovate infraocular callosities. Pronotum. 2.67 times as wide as long (1.36: 0.51), strongly attenuated anteriorly; collar narrow; anterolateral angles produced and forming rounded lobes, reaching slightly beyond collar; disc with a longitudinal median furrow, flanked by a pair of subtriangular plates which meet at anterior margin, disc laterad with a pair of large subtriangular plates with irregular callosities, granulate carinae laterally; posterior margin of pronotum slightly convex separated from mesonotum by a deep furrow. Mesonotum. Wider than pronotum (1.67: 1.36); separated laterally from metanotum by very deep furrows; across meso- and metanota medially with an elongate, subpentagonal bottle-shaped ridge, 1.6 times as long as wide (0.82: 0.51), subrounded anteriorly and truncate posteriorly, smooth and with longitudinal sulcus; laterad of median ridge with a pair of subrectangular plates with irregular callosities and granulate carinae along lateral margin. Metanotum. Wider than mesonotum(1.94: 1.67); separated from fused mtg I+II by a straight thin sulcus; laterad of median ridge with a pair of large subrectangular plates with irregular longitudinal callosities, lateral margins granulate, similar to those of mesonotum. Abdomen. Mtg I and II completely fused, depressed at middle, there with a median thin longitudinal ridge laterally separated by broad deep furrows from wide oblique lateral plates, sloping posteriorly and sideways, further laterad with a pair of large subtriangular depressions; tergal plate subpentagonal, posterior margin truncate, lateral margins slightly rounded; with a slightly raised median thin ridge on mtg III, a pentagonal elevation on mtg IV then tapering posteriorly; laterad of median ridge with the usual pattern of large and small callous spots and smooth surface; deltg II+III completely fused, deltg IV–VII separated by fine sulci; posterolateral angles of deltg VII slightly protruding, blunt; ptg VIII clavate, not reaching to posteror margin of deltg VII; pygophore short and rounded (Figs. 30–31); parameres slender (Figs. 32–34). Venter. Sterna III to VI raised along posterior margin, depressed along anterior border with triangular, smooth spots medially, flanked by a pair of large, transversely ovate shallow depressions and a pair of round callous spots of usual pattern; spiracles II to IV ventral, IV only faintly visible from above, V to VII lateral, placed on dorsally reflexed rim of vltg V–VII and visible from above, VIII terminal; vltg VII with shiny large strong oblique callus. Legs. Slender, preapical comb on fore tibia present, claws with fine pulvilli. Female. Morphological structures as of male but of larger size. Head longer than wide across eyes (1.09: 0.92); length of antennal segments I to IV= 0.65: 0.34: 0.58: 0.34; pronotum wider than long (1.67: 0.54); width of mesonotum 2.18; width of metanotum 2.55; mtg VII slightly elevated posteriorly; posterolateral angles of deltg VII blunt, ptg VIII lobiform, shorter than tergite IX.; spiracles II to IV ventral, IV only faintly visible from above, V to VII lateral and visible from above, VIII terminal. Measurements (in mm, ♂♂ (n=9) / ♀♀ (n=2), holotype in parentheses). Body length 4.32–4.85 / 5.5–5.65 (4.56); maximal width of abdomen 2.11–2.48 / 2.80–3.10 (2.28). Head length 0.82–0.92 / 1.02–1.09 (0.92), width 0.75–0.78 / 0.88–0.92 (0.78). Pronotum length 0.48–0.54 / 0.54–0.54 (0.51), width 1.26–1.46 / 1.67–1.67 (1.36). Mesonotum width 1.53–1.84 / 2.04–2.18 (1.67). Metanotum width 1.77–2.14 / 2.35–2.55 (1.94). Length of antennal segments I–IV = 0.54–0.65, 0.34–0.34, 0.51–0.58, 0.34–0.34 / 0.65–0.75, 0.34–0.37, 0.58–0.61, 0.34–0.37 (0.61, 0.34, 0.58, 0.34). Etymology. The specific name refers to the oblique pronotal margins; it is derived from the Latin adjective obliquus (inclined, slanting) and the latinized Greek noun notum (dorsal part of body); noun in apposition. Distribution. China (Hainan).Published as part of Qian, Hongge, Bai, Xiaoshuan, Heiss, Ernst, Liu, Aiping & Cai, Wanzhi, 2019, Rotundocoris, a new apterous genus of Carventinae from China (Heteroptera: Aradidae), pp. 526-534 in Zootaxa 4623 (3) on pages 530-531, DOI: 10.11646/zootaxa.4623.3.4, http://zenodo.org/record/325862
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