15,634 research outputs found
Dataset for the paper "Climate model bias indicates higher projected future temperature extremes"
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<div>This repository holds data and scripts used to produce the paper entitled:</div>
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<div>"Climate model bias indicates higher projected future temperature extremes"</div>
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<div>by Lei Duan, Lyssa M. Freese, Govindasamy Bala, and Ken Caldeira.</div>
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<div>The paper is currently submitted for peer review.</div>
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<div>Any questions regarding the data and paper could be sent to the corresponding author: Lei Duan ([email protected])</div>
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Maiestas irwini Duan, Dietrich & Zhang
No full textMaiestas irwini Duan, Dietrich & Zhang, Irwin’s grass leafhopper Maiestas irwini Duan, Dietrich & Zhang, 2017: 75 Diagnosis. This species is similar to M. viraktamathi and M. webbi but differs from both in the absence of any indication of a posterior heel at the base of the aedeagus and in the shape of the apical process of the paramere. It shares the presence of an apical tuft of hair setae on the subgenital plate with M. viraktamathi. The front margin of the vertex is somewhat more triangular than in other species. Pale brown longitudinal striping on vertex and pronotum is a feature also found in M. veta. Distribution. Australia (NSW, NT, Qld)Published as part of Fletcher, Murray J. & Dai, Wu, 2018, Two new species of Maiestas Distant (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) with a new record from Australia, pp. 430-440 in Zootaxa 4521 (3) on page 432, DOI: 10.11646/zootaxa.4521.3.8, http://zenodo.org/record/261000
Weighted rational cubic spline interpolation and its application
No full textIn Qi Duan et al. (Korean J. Comput. Appl. Math. 6 (1) (1999) 203–215), the authors have discussed constrained interpolation problems by means of rational cubic spline interpolation with linear denominators, but there are still some cases in which the constrained interpolation cannot be solved. In this paper, the weighted rational cubic spline interpolation has been constructed using the rational cubic spline with linear denominator and the rational cubic spline based on function values. By these, the problems to constrain the weighted rational interpolation curves to lie strictly above or below a given piecewise linear curve and between two given piecewise linear curves can be solved completely. Also, the approximation properties of these weighted rational cubic splines are studied
TAXONOMIC REVISION OF THE FERN GENUS CTENITIS (DRYOPTERIDACEAE) FROM AFRICA AND THE WESTERN INDIAN OCEAN
No full textA taxonomic revision of Ctenitis (C. Chr.) C. Chr. (Dryopteridaceae) from Africa and the Western Indian Ocean was carried out. Forty species are recognized, of which 12 are described as new, eight are transferred to Ctenitis from other genera, and one is elevated from variety to species and transferred from Aspidium Sw. to Ctenitis. These 21 nomenclatural novelties include C. analamazaotrensis (Rakotondr.) Hennequin & Rouhan (comb. nov.), C. brevipetiolulata Li Bing Zhang & Yi F. Duan (sp. nov.), C. bullescens Rouhan, Li Bing Zhang & Yi F. Duan (sp. nov.), C. cerea Li Bing Zhang & Yi F. Duan (sp. nov.), C. comorensis Li Bing Zhang & Yi F. Duan (sp. nov.), C. crinigera (C. Chr.) Hennequin & Rouhan (comb. nov.), C. decaryana (C. Chr.) Hennequin & Rouhan (comb. nov.), C dentata Li Bing Zhang & Yi F. Duan (sp. nov.), C. fibrillosa (Baker) Li Bing Zhang & Yi F. Duan (comb. nov.), C. hispida (Kuhn) Li Bing Zhang & Yi F. Duan (comb. & stat. nov.), C. jouyana (Rakotondr.) Hennequin & Rouhan (comb. nov.), C. longivillosa Li Bing Zhang & Yi F. Duan (sp. nov.), C. marginalisora Li Bing Zhang & Yi F. Duan (sp. nov.), C mayottensis Li Bing Zhang & Yi F. Duan (sp. nov.), C. multilobata Li Bing Zhang, Yi F. Duan & Rouhan (sp. nov.), C. reunionensis Hennequin, Li Bing Zhang & Yi F. Duan (sp. nov.), C. sieberiana (Kaulf.) Hennequin & Rouhan (comb. nov.), C sparsa Li Bing Zhang & Yi F. Duan (sp. nov.), C. spekei (Baker) Li Bing Zhang & Yi F. Duan (comb. nov.), C. subcrenulata (Baker) Li Bing Zhang, Rouhan & Yi F. Duan (comb. nov.), and C tardieu-blotiae Li Bing Zhang & Yi F. Duan (sp. nov.). A key to these species is provided; all species are described and illustrated; and information on their distribution and habitats is given. Twenty-three relevant species reported in the literature are excluded from the flora, and their taxonomy, distribution, and nomenclature are discussed. Seventeen related names are lectotypified or neotypified including Aspidium cirrhosum Schumach., A. crinitum (Poir.) Wall. var. hispida Kuhn, A. cyclochlamys Fee, A. nitidum Bory ex Willd., A. pauciflorum Kaulf., A. sulcatum Kaulf. ex Bory, C. anjenabensis Tardieu, Dryopteris blepharochlamys C. Chr., Gymnogramma subsimilis Hook., Nephrodium crinitum (Poir.) Desv. var. maritimum Cordem, N.. magnum Baker, N. spekei Baker, N. welwitschii Baker, Phegopteris biformis Mett. ex Kuhn, P. bivestita Mett., Polypodium baronii Baker, and P. efulense Baker; type information of related 262 names is also given
Analysis of the conform process: a specific form of aluminium extrusion.
No full textSince the Conform process was patented 30 years ago, there have only been approximately 200 machines sold worldwide. Given that Conform competes economically with conventional extrusion and is also reported to be a more energy
efficient process, it is surprising that the use of Conform is not more widespread in today's increasingly environmentally conscious and high-production focussed world. One explanation for this is likely to be due to the fact that there is still limited knowledge of the thermo-mechanical behaviour of the workpiece during extrusion.
Furthermore, for the aluminium industry, there are still issues remaining regarding the production of flash and the quality of the extrudate in terms of mechanical properties. This study provides the reader with the findings of the research and experimental work undertaken by the author, his co-workers and fellow specialists, in the field of aluminium extrusion including Conform. The experimental work includes both laboratory experiments performed with a direct extrusion press and an experimental machine set up to replicate the Conform process. The experimental work is also simulated using finite element modelling techniques. The results from these analyses are then validated by comparing industrial and experimental data. The finite element analyses are enhanced by using parallel processing technology and user sub-routines. The author proposes new models to allow for the study of the different sub-processes in Conform. These include the coining of the feedstock, formation of the upset zone, extrusion of the flash, the filling-up of the expansion chamber / feeder plate and the extrusion of the extrudate. The author also investigates methods which predict microstructure and surface cracks in the extrudate. The author suggests innovative techniques to improve the efficiency of finite element analysis in metal forming. Finally the author recommends procedures for the study of structural integrity and the optimisation of the tooling used in Conform
PHYSICAL INTERPRETATION OF TORSION-ROTATIONAL PARAMETERS IN METHANOL AND ITS ISOTOPOMERS: COMPARISON OF GLOBAL FIT AND CENTRIFUGAL CALCULATION RESULTS
No full textY.B. Duan and K. Takagi, Phys, Lett. A 207, 203(1995). Y.B. Duan, L. Wang, X. T. Wu, I. Mukhopadhyay, and K. Takagi, J. Chem. Phys. 111, 2385-2391(1999). Y. B. Duan, L. Wang, I. Mukhopadhyay, and K. Takagi. J. Chem. Phys. 110, 927-935(1999). Y. B. Duan, L. Wang, and K. Takagi, J. Mol. Spectrosc. 193, 418-433(1999). Y. B. Duan, A. B. McCoy, J. Mol Spectrosc., 199 302-306(2000). Y. B. Duan, A. B. McCoy, L. Wang, and K. Takagi, J. Chem. Phys. 112, 212-219(2000). Y. B. Duan, A. B. McCoy, L. Wang, and K. Takagi, J. Chem, Phys., (2000), submitted.Author Institution: Department of Chemistry, The Ohio State UniversityThe molecular parameters for and methanol and its isotopomers , and with O-16, 17 and 18 will be presented. Two methods have been used to determine the parameters. One uses the recent formulation of the centrifugal distortion effects in terms of the potential parameters for a molecule that contains a three-fold symmetric internal . The other uses through a global fit to observed high resolution microwave, millimeter wave and Fourier transform far-infrared spectra based on a reduced torsion-rotational Hamiltonian . The calculated parameters, in particular the constants that represent interactions between torsion and rotation, are used to interpret the relationships among the terms in the reduced Hamiltonian. By calculating the molecular parameters from several potential energy functions for methanol isotopomers we can check the quality of these potentials. Finally, the calculated parameters are compared with the parameters that were obtained from global fits. The good agreements between the calculated centrifugal distortion terms and those derived from the fits to the spectra demonstrates that the derived formulae provide a useful tool for understanding the physical origins and mass dependence of fundamental molecular
Maiestas webbi Zhang & Duan
No full textMaiestas webbi Zhang & Duan, new Australian record Maiestas webbi Zhang & Duan 2011: 32. Material examined: QUEENSLAND: 7 males, 4km up Black Mountain Road, via Kuranda 12–26.x.1982, malaise trap, (QDPI); 1 male, same data but 14.ix–12.x.1982, malaise trap (QDPI); 1 male, same data but 24.viii– 14.ix.1982 (QDPI); 1 male Long Pocket Laboratory, Indooroopilly, vii.1978, malaise trap (QDPI); 1 male, Tully Falls Rd, 31.iii.1976, J.F. Donaldson (QDPI); 1 male 22km WSW of Mareeba, 7.i.–12.ii.1985, Storey and Halfpapp (QDPI); 1 male, Wongabel State Forest, 6km S of Atherton, 10.xi–1.xii.1983, Storey and Brown (QDPI); 3 males, Broken River, Eungella, W of Mackay, 8.iv.1976, I.D. Galloway (QDPI); 2 males, Coen area, Cape York Peninsula, 6–12.v.1975, K.J. Houston (QDPI); 5 males, Prince of Wales Island, Torres Strait, 27–30.v.1969, A. Neboiss (NMV); 1 male, Brisbane, v.1977, K.J. Houston, malaise trap (QDPI); 6 males, State Forest near Caloundra Turnoff, 8.iii.1984, I.D. Galloway (QDPI); 1 male, 1km N of Rounded Hill, nr Hope Vale Mission, 5– 6.x.1980, J. Cardale, yellow trap (ANIC); 1 male, Maroochydore Hort. Res. Stn., Nambour, 22.iii–3.iv.1985 (QDPI); 4 males, same data but 3–15.iv.1985 (QDPI); 1 male, Palen Ck. 11km S. Rathdowney, 3.iii.1974, I.D. Galloway, sweeping grass (QDPI); 2 males, Cooper Creek, Beach 13km N of Daintree River, 25.iii.1976, I.D. Galloway (QDPI); 8 males, 17km SE of Rutland Plains, 24.iv.1983, J.F. Donaldson and J.F. Grimshaw, at light (QDPI); 1 male, McIIwraith Range, NE of Coen, Cape York Pen., 29.vi–5.vii.1976, J.F. Donaldson (QDPI); 1 male, Mount Baldy Rd via Atherton, vi.1981, J.D. Brown, malaise trap (QDPI); 1 male, Thornlands, 23–24.ii.1973, J.F. Donaldson, at light (QDPI); 1 male, Tolga scrub, 18.ii.1984, I.D. Galloway (QDPI); 1 male, Cape York, Stewart Range, 29.iv–3.v.1961, J.L. Gressitt (BPB); 1 male, nr Gamboola HS, 23.vii.1982, J.F. Donaldson, D-vac (QDPI); 1 male, Camp Mountain, SE Qld, 22–29.xii.1979, [E.N.] Marks, malaise trap, open sclerophyll gully. NEW SOUTH WALES: 1 male Doyalson / Bluehaven, 31.iii.1986, G.R. Brown, m. v.light (ASCU); 1 male, 2 females, Murray River, 10km N of Nth Dorrigo, 29.iii.1982, G.R. Brown and A.E. Westcott (ASCU); 1 male, Barrington House, via Salisbury, 12–14.iii.1980, malaise trap (QDPI); 1 male, Creek Bluehaven, 8km NE of Wyong, 31.iii.1986, G.R. Brown, m. v. light (ASCU). NORTHERN TERRITORY: 1 male, NTU, Darwin, 28.iii.2000, R. Blanche, J. Lloyd and L. Tran-Nguyen, (ASCU); 1 male, Maningrida, Arnhem Land, 22– 23.iii.1961, J.L. Gressitt, dusk to 8am (BPB). Diagnosis. This species can be distinguished from other Australian species by the presence of an internal strut of the pygofer, the long curved apical process of the paramere, the well developed internal ridging of the subgenital plate and the presence of a prominent heel at the base of the aedeagus where it meets the connective. Distribution. Australia (NSW, NT, Qld), China Note: The widespread distribution of this species across northern Australia may mean it occurs naturally in the region and its presence in China indicates it is probably present in much of Southeastern Asia.Published as part of Fletcher, Murray J. & Dai, Wu, 2018, Two new species of Maiestas Distant (Hemiptera: Cicadellidae: Deltocephalinae: Deltocephalini) with a new record from Australia, pp. 430-440 in Zootaxa 4521 (3) on pages 433-434, DOI: 10.11646/zootaxa.4521.3.8, http://zenodo.org/record/261000
Generalized Stable Multivariate Distribution and Anisotropic Dilations
No full textSchertzer, D.; Larchevêque, M.; Duan, J.; Lovejoy, S.. (1999). Generalized Stable Multivariate Distribution and Anisotropic Dilations. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/3388
Maiestas irisa Zhang & Duan 2011
No full text<i>Maiestas irisa</i> Zhang & Duan, 2011 <p>(Figs 5 A–J)</p> <p> <i>Maiestas irisa</i> Zhang & Duan, 2011, Zootaxa 2870: 30 (China).</p> <p> <b>Material examined</b>. Korea, Gyeongbuk Province: 1 male, 2 females, Yecheon, 2.VIII.2008, Y.J. Kwon; 1 female, 7.VII.2008, same locality and collector.</p> <p> <b>Distribution.</b> Korea (new record: South), China (Zhejiang, Yantai).</p> <p> <b>Host plant.</b> Unknown.</p> <p> <b>Remarks.</b> This species can be distinguished by the narrow aedeagal shaft which is upturned and hook like apically. The style is also very characteristic, with the apophysis short and robust, tapered to an acute apex over the distal half, and only slightly curved laterad.</p>Published as part of <i>Dutta, Nirmal Kumar, Kwon, Jin Hyung, Suh, Sang Jae & Kwon, Yong Jung, 2019, Review of the leafhopper genus Maiestas Distant (Hemiptera: Cicadellidae Deltocephalinae) from Korea, pp. 564-584 in Zootaxa 4646 (3)</i> on page 568, DOI: 10.11646/zootaxa.4646.3.7, <a href="http://zenodo.org/record/3351128">http://zenodo.org/record/3351128</a>
Data from: Population dynamics of an invasive forest insect and associated natural enemies in the aftermath of invasion
No full textDatasets archived here consist of all data analyzed in Duan et al. 2015 from Journal of Applied Ecology. Specifically, these data were collected from annual sampling of emerald ash borer (Agrilus planipennis) immature stages and associated parasitoids on infested ash trees (Fraxinus) in Southern Michigan, where three introduced biological control agents had been released between 2007 - 2010. Detailed data collection procedures can be found in Duan et al. 2012, 2013, and 2015. Resources in this dataset:Resource Title: Duan J Data on EAB larval density-bird predation and unknown factor from Journal of Applied Ecology. File Name: Duan J Data on EAB larval density-bird predation and unknown factor from Journal of Applied Ecology.xlsxResource Description: This data set is used to calculate mean EAB density (per m2 of ash phloem area), bird predation rate and mortality rate caused by unknown factors and analyzed with JMP (10.2) scripts for mixed effect linear models in Duan et al. 2015 (Journal of Applied Ecology).Resource Title: DUAN J Data on Parasitism L1-L2 Excluded from Journal of Applied Ecology. File Name: DUAN J Data on Parasitism L1-L2 Excluded from Journal of Applied Ecology.xlsxResource Description: This data set is used to construct life tables and calculation of net population growth rate of emerald ash borer for each site. The net population growth rates were then analyzed with JMP (10.2) scripts for mixed effect linear models in Duan et al. 2015 (Journal of Applied Ecology).Resource Title: DUAN J Data on EAB Life Tables Calculation from Journal of Applied Ecology. File Name: DUAN J Data on EAB Life Tables Calculation from Journal of Applied Ecology.xlsxResource Description: This data set is used to calculate parasitism rate of EAB larvae for each tree and then analyzed with JMP (10.2) scripts for mixed effect linear models on in Duan et al. 2015 (Journal of Applied Ecology).Resource Title: READ ME for Emerald Ash Borer Biocontrol Study from Journal of Applied Ecology. File Name: READ_ME_for_Emerald_Ash_Borer_Biocontrol_Study_from_Journal_of_Applied_Ecology.docxResource Description: Additional information and definitions for the variables/content in the three Emerald Ash Borer Biocontrol Study tables:
Data on EAB Life Tables Calculation
Data on EAB larval density-bird predation and unknown factor
Data on Parasitism L1-L2 Excluded from Journal of Applied Ecology
Resource Title: Data Dictionary for Emerald Ash Borer Biocontrol Study from Journal of Applied Ecology. File Name: AshBorerAnd Parasitoids_DataDictionary.csvResource Description: CSV data dictionary for the variables/content in the three Emerald Ash Borer Biocontrol Study tables:
Data on EAB Life Tables Calculation
Data on EAB larval density-bird predation and unknown factor
Data on Parasitism L1-L2 Excluded from Journal of Applied Ecology
Fore more information see the related READ ME file.
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