196,586 research outputs found
Rhenefictus wandae Caleb & Sanap & Tripathi & Sampathkumar & Dharmaraj & Packiam 2022, comb. n.
No full textRhenefictus wandae (Wang & Li, 2021) comb. n. Rhene wandae Wang & Li, 2021: 149, figs 16A–C, 17A–D (D ♂). Rhenefictus tropicus Logunov, 2021: 1044, figs 120–126 (D ♂); holotype ♂ in MMUE, not examined; syn. n. Comments. Rhene wandae Wang & Li, 2021 was described based on the holotype male and the paratype male from Xishuangbanna, Yunnan, China. Rhenefictus tropicus Logunov, 2021 was described based on the holotype male from the Tuyen Quang Province in northern Vietnam. While comparing the illustrations of both species, it is evident that they depict the same species. The unique male palp with the long whip-like, coiled embolus lacking a terminal apophysis (cf. figs 120–126 in Logunov (2021) with figs 16A–C, 17A–D in Wang & Li (2021)) is a diagnostic characteristic of the newly erected genus Rhenefictus Logunov, 2021. Despite both descriptions being published in 2021, the paper by Wang & Li appeared in October, whereas that of Logunov in November. Therefore, the name Rhene wandae has a priority over R. tropicus Logunov, 2021, and the latter is to be considered a junior synonym of the former. Yet, the validity of the newly erected, monotypic genus Rhenefictus remains unquestioned, and thus Rhene wandae is to be transferred to this genus: Rhenefictus wandae (Wang & Li, 2021) comb. n. Finally, despite the newly established synonymy and based on Article 67.1.2 of the ICZN, Rhenefictus tropicus Logunov, 2021 remains the type species of Rhenefictus, and is now regarded as a synonym of Rhene wandae Wang & Li, 2021. Distribution. China, northern Vietnam (Wang & Li, 2021; Logunov 2021: sub Rhenefictus tropicus; WSC, 2022) (Fig. 72).Published as part of Caleb, John T. D., Sanap, Rajesh V., Tripathi, Rishikesh, Sampathkumar, M., Dharmaraj, Jayaraman & Packiam, Soosaimanickam Maria, 2022, Taxonomic notes on some South and Southeast Asian members of the genus Rhene Thorell, 1869 (Aranei, Salticidae, Dendryphantini), pp. 389-407 in Zootaxa 5125 (4) on page 403, DOI: 10.11646/zootaxa.5125.4.3, http://zenodo.org/record/645090
Rhene pallida Caleb & Sanap & Tripathi & Sampathkumar & Dharmaraj & Packiam 2022, comb. n.
No full textRhene pallida (Thorell, 1895) comb. n. Figs 42–56, 72 Zeuxippus pallidus Thorell, 1895: 333 (D ♀); Prószyński, 1984: 123 (♀); Żabka, 1985: 456, figs 639–645 (♀, D ♂). Rhene argentata Wesołowska, 1981: 47, figs 5–8 (D ♀). Rhene decoratus Tikader, 1977: 276, figs 4–6 (D ♀); holotype ♀ in NZC-ZSI, examined; syn. n. Rhene pantharae Biswas & Biswas, 1992: 399, figs 29–31 (D ♀); holotype ♀ in the NZC-ZSI, examined; syn. n. For a complete list of taxonomic references see WSC (2022). Types. Rhene decoratus Tikader, 1977: Holotype ♀ (NZC-ZSI) from INDIA, Maharashtra, Poona (presently Pune) Distr., Karla Govt. Rest House, 04.11.1963, leg. B.K. Tikader. Paratype: 1 ♀ (NZC-ZSI), together with the holotype. Rhene pantharae Biswas & Biswas, 1992: Holotype ♀ (NZC-ZSI 5369/18) from INDIA, West Bengal, Nadia Distr., Ranaghat, 16.02.1986, leg. K. Biswas. Comments. R. decoratus Tikader, 1977 was originally described from Maharashtra and was later recorded from West Bengal (Tikader & Biswas, 1981; Roy et al., 2016) and R. pantharae Biswas & Biswas, 1992 was described from West Bengal (Biswas & Biswas, 1992). Based on the detailed examination of the types of both species, they were found to be identical to Rhene pallida (Thorell, 1895) comb. n. in the following characters: the abdominal colour pattern with transverse black streaks and the genitalia morphology with comma-shaped sclerotized rims and central epigynal pocket; proximal portion of insemination ducts membraneous and bent S-like, mid-portion strongly sclerotized, running parallel along the median portion longitudinally; small spermathecae (cf. Figs 42–48 and Figs 51–55 with figs 5–8 in Wesołowska (1981), illustrations in Proszynski (1984: 123) and figs 643–645 in Zabka (1985)). Therefore, both the species R. decoratus and R. pantharae are treated as junior synonyms of R. pallida. Distribution. Bangladesh, Myanmar, China, Vietnam (WSC, 2022), India (Maharashtra, West Bengal) (Fig. 72).Published as part of Caleb, John T. D., Sanap, Rajesh V., Tripathi, Rishikesh, Sampathkumar, M., Dharmaraj, Jayaraman & Packiam, Soosaimanickam Maria, 2022, Taxonomic notes on some South and Southeast Asian members of the genus Rhene Thorell, 1869 (Aranei, Salticidae, Dendryphantini), pp. 389-407 in Zootaxa 5125 (4) on pages 398-402, DOI: 10.11646/zootaxa.5125.4.3, http://zenodo.org/record/645090
Three dimensional geometrical and material nonlinear finite element analysis of adhesively bonded joints for marine structures
No full textThe use of adhesive bonding as a structural joining method has been gaining recognition in marine industry in recent years, though it has been widely adopted in other fields such as aerospace, automobiles, trains and in civil constructions. The type of materials used and design practices followed in marine structures are different from what is applied in other disciplines. Therefore new research approaches are required and recent novel ideas are explored in the context of application of bonded joint configurations in marine environment.The research is directed at developing analysis tools for predicting the displacement, stress and strain fields in adhesively bonded joints between dissimilar adherends. In the finite element formulation, the adherends may be isotropic or orthotropic layered materials, which are assumed to behave linear elastically. The adhesive material is assumed to behave as elasto-plastic continuum, where the nonlinear behaviour is modelled as either a rigid or a semi-rigid adhesive solid that can be represented by the Ramberg-Osgood material model. The yield behaviour of the polymeric adhesive is modelled using a modified von Mises criterion, which accounts for the fact that plastic yielding of polymer materials may occur under the action of hydrostatic as well as deviatoric stresses. The geometric nonlinearity is based on the assumption of large displacement, large rotation but small strain, and it is implemented in the code using the total Lagrangian approach.The scheme is applied on three case studies viz.: a study of adherend imbalances in a single lap joint, stress analysis of a butt-strap joint system and a hybrid joint are undertaken. The influence of geometric and material nonlinearity on joint deformations and adhesive stresses, are studied for a single lap joint with dissimilar adherends, aluminium and a Fibre Reinforced plastic composite material, with varying adhrend thickness ratios. The adhesive stress-strain data obtained from the model are compared with the experimental stress-strain curve and the numerical results are validated with the analytical solution. Three dimensional effects like ’anticlastic’ and bending-twisting’ are shown in the joint with a dissimilar adherends. Key results are obtained that explains the state of nonlinear adhesive stress state in the joint.Analysis of butt-strap joint focussed on nonlinear modelling of a semi-rigid adhesive material that is used to bond two dissimilar adherends, steel and aluminium. The analysis demonstrate that the influence of geometric and material nonlinearity on the joint deformations as well as the adhesive stresses is significant. Nonlinear adhesive stresses are compared with the actual strength of the highly flexible adhesive, highlighting the need for the consideration of material nonlinearity in the bonded joints. Failure modes for the joint are inferred from the observations made on the adhesive stress state in the butt-strap joint.Last study, deals with three dimensional analysis of a GRP-Steel hybrid joint carried out to model the initiation and propagation of crack under a set of static loading cases. Earlier studies were restricted only to two dimensional analysis. This three dimensional analysis showed that the adhesive normal stress is not constant across the width of the joint. Critical locations of stress concentrations are identified and the failure mechanisms are compared with the experimental specimens.The observations made from this research study using a three dimensional finite element program, compliments the present knowledge in the field of adhesively bonded joints
FIGURES 51–56 in Taxonomic notes on some South and Southeast Asian members of the genus Rhene Thorell, 1869 (Aranei, Salticidae, Dendryphantini)
No full textFIGURES 51–56. Somatic morphology and copulatory organs of Rhene pantharae Biswas & Biswas, 1992, holotype female: 51—habitus, dorsal view; 52—ditto, lateral view; 53—ditto, front view; 54—epigyne, ventral view; 55—vulva, dorsal view; 56—label. Scale bars: (54, 55) 0.05 mm, (51–53) 0.5 mm.Published as part of Caleb, John T.D., Sanap, Rajesh V., Tripathi, Rishikesh, Sampathkumar, M., Dharmaraj, Jayaraman & Packiam, Soosaimanickam Maria, 2022, Taxonomic notes on some South and Southeast Asian members of the genus Rhene Thorell, 1869 (Aranei, Salticidae, Dendryphantini), pp. 389-407 in Zootaxa 5125 (4) on page 401, DOI: 10.11646/zootaxa.5125.4.3, http://zenodo.org/record/645090
FIGURES 12–17 in Taxonomic notes on some South and Southeast Asian members of the genus Rhene Thorell, 1869 (Aranei, Salticidae, Dendryphantini)
No full textFIGURES 12–17. Somatic morphology and copulatory organs of Rhene sanghrakshiti Gajbe, 2004, holotype female: 12—general appearance, dorsal view; 13—ditto, lateral view; 14—ditto, front view; 15—epigyne, ventral view; 16—vulva, dorsal view; 17—label. Scale bars: (15, 16) 0.2 mm, (12–14) 2 mm.Published as part of Caleb, John T.D., Sanap, Rajesh V., Tripathi, Rishikesh, Sampathkumar, M., Dharmaraj, Jayaraman & Packiam, Soosaimanickam Maria, 2022, Taxonomic notes on some South and Southeast Asian members of the genus Rhene Thorell, 1869 (Aranei, Salticidae, Dendryphantini), pp. 389-407 in Zootaxa 5125 (4) on page 394, DOI: 10.11646/zootaxa.5125.4.3, http://zenodo.org/record/645090
Partition energy of m-splitting graph and their generalized complements
No full textLet G be graph with partition P={V1, V2, …, Vk} of the vertex set V. Recently E. Sampathkumar et al. [22] introduced the concept of k-partition energy of graph EPₖ (G) and studied partition energy of certain class of graphs. In this paper we compute partition energy of some m-splitting graphs Sm(G). The graphs we consider are Sm (Kn), Sm(Cn), Sm(Kn×2), Sm(Kn,n) and their generalized complements
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Computerized microvasculature dura mater structure extraction and analysis of fluorescence microscopy imagery
No full textPoster from:
V. B. S. Prasath, R. Pelapur, Y. M. Kassim, S. Meena, A. Palaniappan, U. Sampathkumar, O. Glinskii, V. Glinskii, V. Huxley, K. Palaniappan. Computerized Microvasculature Dura Mater Structure Extraction and Analysis of Fluorescence Microscopy Imagery. Missouri Informatics Symposium, April 2016.</p
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