4,054 research outputs found
Orchids of Borneo : introduction and a selection of species vol.1/ C.L. Chan (et al)
No full textxvii, 371 hal.: ill.; 24 cm
Domain Names in Turkey
No full textTurkey faces both unique and common domain name regulatory issues. In this paper, the author focuses on the challenges ahead for Turkey, with especial focus on the regulation of IDNs
Plagiarism: concepts and contexts
No full textAfter outlining the key difficulties in modern literature on academic plaigarism, the author suggests that these may be resolved by a new model of plaigarism (whilst noting that this new model does raise additional uncertainties, e.g. as to the status of 'self plagiarism') that she has developed
Dictionary of Acoustics
No full textThe science and technology of acoustics embraces an unusually wide range of disciplines, from aircraft noise reduction to ultrasonics in medicine, from psychoacoustics to signal processing. The student of acoustics has to become familiar with a corresponding range of specialist terms in order to communicate with others and to understand the literature. Here, in one informative dictionary, for the first time, are listed accurate and helpful definitions to provide the student - or the specialist from another discipline - with a point of entry into the world of acoustics. The dictionary's 2,800 entries cover most of the essential concepts and terminology that the practicing acoustician needs to understand, outside the subfields of music and speech communication. The author has drawn on experience gained during a long career spent mostly at Southampton University's multidisciplinary Institute of Sound and Vibration Research, supplemented by the expertise and perspective of a team of subject specialists
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
Tetraclita reni Chan, Hsu & Tsai
No full text<i>Tetraclita reni</i> Chan, Hsu & Tsai nom. nov. <p>Figures 2 A, 2D, 3A–C, 4, 5</p> <p> <i>Tetraclita squamosa rufotincta</i> Utinomi, 1968: 180 (Cape Diego, Madagascar)</p> <p> <i>Tetraclita africana</i> Ren, 1989: 452, 453, fig. 12 (Sainte Luce, Madagascar, type locality)</p> <p> <b>Material examined.</b> Cape Diego, Madagascar (<i>Galathea</i> stn. 223), ZMUC CRU- 9881, <i>Tetraclita squamosa rufotincta</i> (3 specimens), 03-March-1951, det. Utinomi 1967; Connoniers Point, Mauritius, ZMUC CRU- 9882, <i>Tetraclita squamosa rufotincta</i> (2 specimens), 30-April-1929, coll. Th. Mortensen; Ambovombe, Madagascar, MNHN Entrée no. 7, <i>Tetraclita</i> (1 specimen), 1931, coll. D. de M. R. Decary; Sarodrano, Madagascar, MNHN C.l. 664, <i>Tetraclita porosa rufotincta</i> (2 specimens), 1906, coll. F. Geay; Fort Dauphin, Madagascar, MNHN, <i>Tetraclita porosa</i> (1 specimen), 1901, coll. Ferlus.</p> <p> <b>Description.</b> Parietes pink, surfaces of some older specimens with white patches due to erosion. Posterior side of scutum and tergum varying from pink to white. Terga from majority of samples with wide base, rounded spur (Fig. 2 A); mean basi-scutal angle 140 ± 8.6o (n = 6, pooled specimens from Cape Diego, Fort Dauphin and Amobvombe; Fig. 2 A); scutal margin long, lateral depressor muscle crests 6–8. Scutum triangular, large teeth on occludent margin (Fig. 2 A), tergal margin long; adductor muscle scar deep; depressor muscles crests well developed with 6–9 crests; adductor ridge short (Fig. 2 A). Rami of cirrus I unequal (Fig. 3 A, 4A); exopodite (18 segments, Mauritius sample) longer than endopodite (12 segments, Mauritius sample; Fig. 3 A). Cirrus II shortest of cirri, rami approximately equal (exopodite 12 segments, endopodite 11 segments, Mauritius sample, Fig. 3 B). Setae on rami of cirrus I and II serrulate with 3–4 rows of setules (Fig. 4 A, B, D–F); coxa and base of protopod of cirrus I bearing long, thin, serrulate setae with 5 short setules (Fig. 3 A, 4A, F), those of cirrus II bearing plumose setae with long feathery setules (Fig. 3 B, 4B, G); cirrus II additionally bearing flattened, blade-shaped, serrulate setae, each with single row of setules (Fig. 4 H). cirrus III with rami long,slender, somewhat antenniform (Fig. 3 C, 4C); exopodite (15 segments) shorter than endopodite (24 segments; Mauritius sample, Fig. 3 C). Setae on rami of cirrus III similar to those on cirrus II (Fig. 4 C) plus additional dense, serrulate setae (Fig. 4 E), bidentate, serrate setae (Fig. 2 C, 4L), bladeshaped serrulate setae (Fig. 4 H) and large multicuspidate setae (Fig. 2 D, 4I); setules and inter-setule space of multicuspidate setae larger than those of bidentate serrate setae (Fig. 2 C, D, 4I, L). Cirri IV, V and VI similar, all bearing serrulate setae with 1 row of setules (Fig. 4 M, O); simple setae present on segment junctions of cirri IV–VI (Fig. 4 N, O).</p> <p>Labrum notch slightly concave, with 4–5 teeth on each side (Fig. 5 A, B); posterior surface densely clothed in serrulate setae (Fig. 5 C). Mandible with four teeth, lower angle with ~ 10 small setae (Fig. 5 D–F). Maxillule notched, two large setae on upper notch, 16 on lower notch (Fig. 5 I). Mandibulatory palp oval, long serrulate setae distally (Fig. 5 K, L). Maxilla bi-lobed, covered with dense, serrulate setae, notch between the lobes non-setose (Fig. 5 G, H).</p> <p> <b>Diagnosis.</b> <i>Tetraclita reni</i> nom. nov. is characterized by the multicuspidate setae on cirrus III, which are not seen in other species of <i>Tetraclita</i> except <i>T. japonica</i> Pilsbry 1916, a Pacific species (Ren 1989; Chan 2001).</p> <p> <b>Distribution.</b> Northeastern and southern Madagascar and Mauritius.</p> <p> <b>Remarks.</b> Ren (1989) described a new species of <i>Tetraclita</i> from Madagascar with the epithet <i>africana,</i> which was preoccupied by <i>Tetraclita wireni africana</i> (Nilsson-Cantell 1932). <i>Tetraclita wireni</i> was later assigned to <i>Tesseropora</i> (see Newman & Ross 1976). As <i>Tetraclita africana</i> Ren 1989 is a junior homonym of <i>Tetraclita wireni africana</i> Nilsson-Cantell 1932, <i>Tetraclita reni</i> nom. nov. is erected for the species described by Ren (1989). The present study provides new records of <i>T. reni</i> nom. nov. in southern and northeastern Madagascan waters and Mauritius.</p> <p> <b>Etymology.</b> <i>Tetraclita reni</i> nom. nov. is named in honour of Professor Xianqiu Ren, Institute of Oceanology, Chinese Academy of Science, in recognition of his discovery of this new species (<i>= T. africana</i>) and for his contributions in the field of Chinese barnacle taxonomy.</p>Published as part of <i>Chan, Benny Kwok Kan, Hsu, Chih-Hsiung & Tsai, Pei-Chen, 2009, Morphology and distribution of the acorn barnacle Tetraclita reni nom. nov. (Crustacea: Cirripedia) in Madagascar and adjacent waters, pp. 57-68 in Zootaxa 2019</i> on pages 59-60, DOI: <a href="http://zenodo.org/record/186037">10.5281/zenodo.186037</a>
Modelling of turbulent jets and wall layers: extensions of Lighthill's acoustic analogy with application to computational aeroacoustics
No full textTwo extensions to Lighthill’s aeroacoustic analogy are presented. First, equivalent sources due to initial conditions are derived that supplement those due to boundary conditions, as given by Ffowcs Williams & Hawkings. The resulting exact inhomogeneous wave equation is then reformulated with pressure rather than density as the wave variable, and the right-hand side is rearranged using the energy equation with no additional assumptions. Applications to computational aeroacoustics are discussed, and illustrated with examples based on 2D and 3D simulations
Flower Initiation Pattern, Developmental Stages, and Seed Morphology of Paraphalaenopsis Labukensis P.S. Shim, A. Lamb & C.L. Chan, An Endangered Orchid in Sabah
No full textBackground: Paraphalaenopsis labukensis P.S. Shim, A. Lamb & C.L. Chan is a monopodial epiphytic species that can only be found in Sabah. P. labukensis orchids have unique characteristics in that it has a long floral lifespan as compared to other orchid species. The flower developmental pattern of P. labukensis greatly influenced capsule formation and seed maturation. Objective: The present research was conducted to record the initiation of flower initiation, and floral morphology, and to observe the flowering and capsule development, as well as the effect of different capsule ages on asymbiotic seed germination. Methods: A total of three individual plants of P. labukensis were observed. The flowering stages were characterized by quantitative parameters such as length of inflorescence, diameter, and length of buds, the number of flowers produced, and the length of the capsule formed. All the data were recorded through direct observation. Results: Overall, twelve morphological landmark that define each stage of floral development was recorded. Based on the observation, P. labukensis inflorescence was asymmetric and in the shape of a panicle. The number of flowers varied among inflorescences, ranging from 3–5, that blossomed at different times. Furthermore, early capsules appeared 40–90 days after pollination (DAP). Then, 120 DAP of the capsule was selected as the most suitable capsule age for germination as it had reached its maturation period. Conclusion: Identifying the duration of the whole flowering developmental process will aid in the production of capsules to attain a reliable and adequate seed source for in vitro seed germination
Coauthor prediction for junior researchers
No full textResearch collaboration can bring in different perspectives and generate more productive results. However, finding an appropriate collaborator can be difficult due to the lacking of sufficient information. Link prediction is a related technique for collaborator discovery; but its focus has been mostly on the core authors who have relatively more publications. We argue that junior researchers actually need more help in finding collaborators. Thus, in this paper, we focus on coauthor prediction for junior researchers. Most of the previous works on coauthor prediction considered global network feature and local network feature separately, or tried to combine local network feature and content feature. But we found a significant improvement by simply combing local network feature and global network feature. We further developed a regularization based approach to incorporate multiple features simultaneously. Experimental results demonstrated that this approach outperformed the simple linear combination of multiple features. We further showed that content features, which were proved to be useful in link prediction, can be easily integrated into our regularization approach. © 2013 Springer-Verlag
Summary of three gingival thickness replicates by Examiner 2 (C.L.) (in mm).
No full textSummary of three gingival thickness replicates by Examiner 2 (C.L.) (in mm).</p
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