1,845 research outputs found
Phaneroptera rentzi Divya & Senthilkumar 2020, sp. nov.
No full textPhaneroptera rentzi sp. nov. Fig. 1—a, i, j, o; Fig.2 —A–N, Diagnostic characters: Male ( ♂ ). Body yellowish green. Fastigium vertices scapus wider, apically narrow with obtuse, a fine median sulcus (Fig. 2C), strong pigmentation on the dorsal side of fastigium as well as the entire pronotum (Fig. 2B, D); anterior margin of pronotum flat, posteriorly concave; tegmen surpassing the hind wing, dorsally flat, clear wing venation, cerci of male strongly bent inward behind the sub genital plate (Fig. 2K), apex of cercus strongly acute with short and stout black spine (Fig. 2M and Fig. 1a), subgenital plate strongly bifurcate, incurved (Fig. 2 J and Fig. 1j). Colouration. Yellowish green colour. Female. Unknown. Type Material. Holotype: ♂, Dharmapuri (N 0 12007 ’11.21’’E 077051 ’.01.94’’), Tamilnadu, India. 11 II 2018. Coll. G. Divya and N. Senthilkumar. Deposited in Gass Forest Museum (GFM), Institute of Forest Genetics and Tree Breeding, Coimbatore, Tamilnadu (India). Distribution. Dharmapuri, Tamilnadu, India. Etymology. This species is named in honour of Dr D. C. F. Rentz, Australia. Discussion. The new species is completely differs from P. spinosa, P. myllocerca, P. falcata and P. gracilis on the structure of subgenital plate, supra anal plate, pronotum and fastigium vertices. P. rentzi, sp. nov. is entirely differ from the P. spinosa, P. myllocerca and P. falcata by the shape of cerci and subgenital plate. P. gracilis and P. rentzi, sp. nov. are look-alike however, the subgenital plate is entirely different (Fig. 1j, m). The lateral lobe of pronotum deeper than long, without white band; fairly and smoothly rounded not forming angle with disc, sharp emargination at posterior end of insertion. Subgenital plate bilobate at the apex. Distal lobe of subgenital plate not smoothly rounded but pointed. Apex of the cerci abruptly bent inwards. Stridulatory vein large almost as wide as left tegmen; distal end of file as in Fig. 2 E.Published as part of Divya, Govindaraj & Senthilkumar, Natchiappan, 2020, Contribution to the knowledge of the genus Phaneroptera (Tettigoniidae Phaneropterinae) with a new record from Tamilnadu, India, pp. 425-434 in Zootaxa 4860 (3) on page 426, DOI: 10.11646/zootaxa.4860.3.7, http://zenodo.org/record/441406
Effect of HgCl2 on Carbon Dioxide and Methane Emission from the Sindian River and Sediments
No full textsj-pdf-1-pie-10.1177_09544089231173215 - Supplemental material for GMA welding investigations on the effect of alternating shielding gases on bead profile characteristics of AA6061 aluminum alloy
No full textSupplemental material, sj-pdf-1-pie-10.1177_09544089231173215 for GMA welding investigations on the effect of alternating shielding gases on bead profile characteristics of AA6061 aluminum alloy by Mahadevan G, Senthilkumar T and Ramasamy N in Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering</p
sj-docx-1-mde-10.1177_23821205231200731 - Supplemental material for Student Leadership Development Initiative for Medical Students: Lessons Learned From Transitioning to Virtual Modalities
No full textSupplemental material, sj-docx-1-mde-10.1177_23821205231200731 for Student Leadership Development Initiative for Medical Students: Lessons Learned From Transitioning to Virtual Modalities by Gopika SenthilKumar, Kelli C. Sommers, Yizeng He, Katarina Stark, Taylor Craig, Aliyah Keval, Neemit Shah, Kahaan Patel and John Meurer in Journal of Medical Education and Curricular Development</p
Design of mini phantom and measurement of cobalt-60 beam data parameters
No full textLow cost mini phantoms were fabricated indigenously with different water equivalent material such as polymethyl methacrylate and Bee′s wax of different shapes (with dome top surface and flat top surface). The beam parameters of the Co-60 machine, such as head scatter correction factor (S h ), phantom scatter correction factor (S P ), total scatter correction factor (S C,P ), collimator exchange effect were measured. Output ratio measurements were taken for both mini phantom and water phantom for different square and rectangular field sizes. Normalized output ratios were compared with ESTRO published values and (Storchi and Van Gasteren) S and G data. The percentage of variation between the measured and the literature values is about 0.7%. Collimator exchange effect were measured for water and mini phantom for different field size, were compared with ESTRO value. This was found to be 0.5% and 1.0% respectively. Phantom scatter correction factors were calculated for square and rectangular filed sizes; this was compared with ESTRO values, found to be 0.7% for square and 1.0% for rectangular filed size. It was also noted that there were no appreciable variation observed in ion chamber readings of different materials of mini phantoms for dome and flat surfaces. Mini phantom measurements were done for all types of phantoms and the measured values were compared with the existing data and they were in good agreement with the published values
Influence of the ion size on the stability of the smectic phase of ionic liquid crystals
No full textThe thermotropic phase behavior of ionic liquids and ionic liquid crystals based on novel N-alkyl-3-methylpyridinium halides, trihalides and dichloroiodates was experimentally studied by polarized optical spectroscopy (POM) and differential scanning calorimetry (DSC) as well as by molecular dynamics (MD) simulation. In the experiments, the existence and thermal range of stability of the smectic phase of these ionic liquid crystals are found to strongly depend on the volume ratio between the cation and anion, that is their relative size. Only compounds with a relatively large volume ratio of the cation to anion, i.e., those with longer cationic alkyl chains and monoatomic halide anions, have a stable smectic A phase. Both melting points and clearing points increase with such a ratio. The MD simulation results qualitatively agree very well with the experimental data and provide molecular details which can explain the experimentally observed phenomena: the stronger van der Waals interactions from the longer alkyl chains and the stronger electrostatic interactions from the smaller anions with a higher charge density increase the stability of both the crystal phase and the smectic phase; this also prevents the ionic layers from easily mixing with the hydrophobic regions, a mechanism that ultimately leads to a nanosegregated isotropic liquid phase
Design and Detection of Underground Cable Fault Using Raspberry Pi and IoT System
No full textThis paper proposes fault location model for underground power cable using raspberry pi and the Internet of Things which is based on the internet, which means the information will be transferred through the internet access. The aim of this method is to determine the distance of underground cable fault from base station in kilometres and also find the location of that faulty place. This paper uses the simple concept of Current Transformer Theory CT Theory . When any fault like short circuit occurs, voltage drop will vary depending on the length of fault in cable since the current varies Current Transformer is used to calculate the varying current. The signal conditioner manipulates the change in voltage and a microcontroller is used to make the necessary calculations so that the fault distance is displayed by IOT devices. These fault details are after sent to any access point through the internet and displayed. Mr. M. Dinesh | Mr. K. Vairaperumal | Mr. P. Senthilkumar "Design and Detection of Underground Cable Fault Using Raspberry Pi & IoT System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-1 , December 2018, URL: https://www.ijtsrd.com/papers/ijtsrd19037.pd
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