88,808 research outputs found
Urocaridella arabianensis n. sp., a new Palaemonid shrimp (Crustacea, Decapoda Palaemonidae) from Lakshadweep Islands, India with taxonomic comparison on the genus Urocaridella Borradaile, 1915
No full textAkash, S., Purushothaman, P., Madhavan, Manu, Ravi, Charan, Hisham, T. Jafer, Sudhakar, M., Kumar, T.T. Ajith (2020): Urocaridella arabianensis n. sp., a new Palaemonid shrimp (Crustacea, Decapoda Palaemonidae) from Lakshadweep Islands, India with taxonomic comparison on the genus Urocaridella Borradaile, 1915. Zootaxa 4816 (1): 49-66, DOI: 10.11646/zootaxa.4816.1.
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
FIGURE 3. Urocaridella arabianensis n in Urocaridella arabianensis n. sp., a new Palaemonid shrimp (Crustacea, Decapoda Palaemonidae) from Lakshadweep Islands, India with taxonomic comparison on the genus Urocaridella Borradaile, 1915
No full textFIGURE 3. Urocaridella arabianensis n. sp. Holotype, Female (13 mm): Pereopod I (A); chela of Pereopod I (B); Pereopod II (C); chela of Pereopod II (D); Pereopod III (E); Pereopod IV (F); Pereopod V (G); lateral view of Abdominal pleura (H).Published as part of Akash, S., Purushothaman, P., Madhavan, Manu, Ravi, Charan, Hisham, T. Jafer, Sudhakar, M. & Kumar, T.T. Ajith, 2020, Urocaridella arabianensis n. sp., a new Palaemonid shrimp (Crustacea, Decapoda Palaemonidae) from Lakshadweep Islands, India with taxonomic comparison on the genus Urocaridella Borradaile, 1915, pp. 49-66 in Zootaxa 4816 (1) on page 54, DOI: 10.11646/zootaxa.4816.1.2, http://zenodo.org/record/395409
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
Get PDFFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
C3H7NO2S effect on concrete steel-rebar corrosion in 0.5 M H2SO4 simulating industrial/microbial environment
No full textThis paper investigates C3H7NO2S (Cysteine) effect on the inhibition of reinforcing steel corrosion in concrete immersed in 0.5 M H2SO4, for simulating industrial/microbial environment. Different C3H7NO2S concentrations were admixed, in duplicates, in steel-reinforced concrete samples that were partially immersed in the acidic sulphate environment. Electrochemical monitoring techniques of open circuit potential, as per ASTM C876-91 R99, and corrosion rate, by linear polarization resistance, were then employed for studying anticorrosion effect in steel-reinforced concrete samples by the organic hydrocarbon admixture. Analyses of electrochemical test-data followed ASTM G16-95 R04 prescriptions including probability distribution modeling with significant testing by Kolmogorov-Smirnov and student's t-tests statistics. Results established that all datasets of corrosion potential distributed like the Normal, the Gumbel and the Weibull distributions but that only the Weibull model described all the corrosion rate datasets in the study, as per the Kolmogorov-Smirnov test-statistics. Results of the student's t-test showed that differences of corrosion test-data between duplicated samples with the same C3H7NO2S concentrations were not statistically significant. These results indicated that 0.06878 M C3H7NO2S exhibited optimal inhibition efficiency η = 90.52±1.29% on reinforcing steel corrosion in the concrete samples immersed in 0.5 M H2SO4, simulating industrial/microbial service-environment
A burst search for gravitational waves from binary black holes
Get PDFCompact binary coalescence (CBC) is one of the most promising sources of gravitational waves. These sources are usually searched for with matched filters which require accurate calculation of the GW waveforms and generation of large template banks. We present a complementary search technique based on algorithms used in un-modeled searches. Initially designed for detection of un-modeled bursts, which can span a very large set of waveform morphologies, the search algorithm presented here is constrained for targeted detection of the smaller subset of CBC signals. The constraint is based on the assumption of elliptical polarization for signals received at the detector. We expect that the algorithm is sensitive to CBC signals in a wide range of masses, mass ratios and spin parameters. In preparation for the analysis of data from the fifth LIGO-Virgo science run (S5), we performed preliminary studies of the algorithm on test data. We present the sensitivity of the search to different types of simulated binary black hole waveforms. Also, we discuss how to extend the results of the test run into a search over all of the current LIGO-Virgo data set
Author Correction: A global analysis of terrestrial plant litter dynamics in non-perennial waterways
No full text© 2018 The Author(s) In the version of this Article originally published, the affiliation for M. I. Arce was incorrect; it should have been:5Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany. This has now been corrected in the online versions of the Article
Figure 8 in Redescription of the fish parasite Nerocila serra Schioedte and Meinert, 1881 (Isopoda: Cymothoidae) from India, with a lectotype designation, and Nerocila pulicatensis Jayadev Babu and Sanjeeva Raj, 1984 placed into synonymy
No full textFigure 8. Variation among Nerocila serra, Nerocila trivitata, Nerocila arres and Nerocila sigani: (a, e, i, m) Nerocila serra Schioedte and Meinert, 1881, lectotype ovig. female (21.0 mm; NRS TYPE-9047 (previously NRS-4974)); (b, f, j, n) Nerocila trivitata Bleeker, 1857; (c, g, k, o) Nerocila arres Bowman and Tareen, 1983, holotype ovig. female (30.5 mm; USNM 189264); (d, h, l, p) Nerocila sigani Bowman and Tareen, 1983, holotype ovig. female (18.6 mm; USNM 190714). (a–d) dorsal view; (e–h) uropod; (i–l) pereopod 1; (m–p) pereopods 7. Nerocila trivitata, Nerocila arres and Nerocila sigani drawings are adapted and redrawn from the original descriptions.Published as part of Vigneshwaran, P., Ravichandran, S. & Ajith Kumar, T.T., 2022, Redescription of the fish parasite Nerocila serra Schioedte and Meinert, 1881 (Isopoda: Cymothoidae) from India, with a lectotype designation, and Nerocila pulicatensis Jayadev Babu and Sanjeeva Raj, 1984 placed into synonymy, pp. 513-531 in Journal of Natural History 56 (9-12) on page 525, DOI: 10.1080/00222933.2022.2075290, http://zenodo.org/record/701243
Studies on Thermal Reactions and Sintering Behaviour of Red Clays by Irreversible Dilatometry
No full textThermal behavior of clays strongly influences that of ceramic bodies made thereof and hence, its study is must for assessing its utility in ceramic products as well as to set the body composition. Irreversible dilatometry is an effective thermal analysis tool for evaluating thermal reactions as well as sintering behavior of clays or clay based ceramic bodies. In this study, irreversible dilatometry of four red clay samples (S, M, R and G) of Gujarat region, which vary in their chemical and mineralogical compositions was carried out using a Dilatometer and compared. Chemical analysis and XRD of red clays were carried out. XRD showed that major clay minerals in S, M and R clays are kaolinite. However, clay marked R and G showed presence of both kaolinite and illite and / muscovite. Presence of non-clay minerals such as hematite, quartz, anatase were also observed in all clays. XRD results were in agreement with chemical analyses results. Rational analyses showed variation in amount of clay and non-clay minerals in red clay samples. Evaluation of dilatometric curves showed that clay marked as S, M and R exhibit patterns typical for kaolinitic clays. Variation in linear expansion (up to 550 degrees C) and shrinkage (above 550 degrees C) between these three clays was found to be related to difference in amount of quartz and kaolinite respectively. However, dilatometric curve of G exhibit a pattern similar to that for an illitic clay. This study confirmed that sintering of investigated kaolinitic and illitic and / muscovitic red clays initiates at above 1060 degrees C and 860 degrees C respectively and this behaviour strongly depends upon type and amount of minerals and their chemical compositions
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