Lectotypification in Stellaria (Caryophyllaceae)

Kumar, Manish; Sreenath, Ananthaneni; Anjaneyulu, Paradesi; Saravanan, S.; Rao, Boyina Ravi Prasad

doi:10.22244/rheedea.2017.27.2.21

Cited by 2 publications

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“…The main disturbing factors in the control devices for partial discharge currents and channels for transmitting telemetric information using radio modems and cellular communications are the corona of high-voltage currentcarrying elements of high-voltage lines, switching overvoltage and emergency situations caused by electric arc overlap of insulator strings that form electromagnetic radiation in a wide spectrum of high voltage [9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

Monitoring leakage currents of suspension insulators of high voltage overhead power lines

et al. 2019

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The relevance of studying partial discharge currents (PDC) arising on the surface of suspension insulators of high-voltage overhead power lines (HVPL) is substantiated. Increasing PDC leads to increasing active energy losses and unauthorized shutdowns of high-voltage power lines due to the electric arc overlap of the suspension insulator. A laboratory bench for PDC experimental studying has been developed and manufactured. As a result of experimental studies we have determined static and dynamic characteristics of partial discharge currents; we have developed the algorithm for processing experimentally obtained results using Microsoft Excel spreadsheet editor. Recommendations have been developed for developing the hardware of the PDC sensor that allows increasing sensitivity, expanding the range of the controlled parameter and improving its dynamic characteristics in order to increase the accuracy and to expand the range of operation of the PDC sensor and to reduce the time it takes to establish its output signal. Equipping 220-500 kV power lines with PDC sensors of suspension insulators with telemetry will allow reducing the number of unauthorized emergency shutdowns of high-voltage power lines; realizing continuous current monitoring of the state of suspension insulators and receiving in real time the information of the integral value of PDC

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Section: Introductionmentioning

confidence: 99%

Monitoring leakage currents of suspension insulators of high voltage overhead power lines

et al. 2019

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“…[11][12][13] Our target compounds from MCRs were amidoalkylnaphthols, which can be prepared by multicomponent condensation of aldehydes, 2-naphthols and acetonitrile or different amides in the presence of various catalysts. [14][15][16][17][18][19][20] Several heterogeneous catalyst have been reported to catalyse this transformation, such as silica gelsupported ─SO 3 H-functionalized benzimidazolium, [21] cation-exchanged resins, [22] silica-supported perchloric acid, [23] heteropolyacids, [24] silica gel-supported dual acidic ionic liquid, [25] sulfanilic acid@MNPs, [26] FeCl 3 @SiO 2 , [27] alumina sulfuric acid [28] and K 5 CoW 12 O 40 ⋅3H 2 O. [29] 1-Amidoalkyl-2-naphthol derivatives are important intermediates as an important class of compounds which can be easily converted to biologically and pharmacologically active derivatives by an amide hydrolysis reaction.…”

Section: Introductionmentioning

confidence: 99%

Multi‐wall carbon nanotube supported Co (II) Schiff base complex: an efficient and highly reusable catalyst for synthesis of 1‐amidoalkyl‐2‐naphthol and tetrahydrobenzo[b]pyran derivatives

Rakhtshah

Salehzadeh

2016

Applied Organom Chemis

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An immobilized Co (II) Schiff base complex supported on multi‐wall carbon nanotubes was synthesized and characterized using Fourier transform infrared spectroscopy, X‐ray diffraction, scanning electron microscopy, http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=9&cad=rja&uact=8&ved=0CDoQFjAI&url=http%3A%2F%2Fen.wikipedia.org%2Fwiki%2FEnergy-dispersive_X-ray_spectroscopy&ei=8whJVfW_KMv4UJvQgOAH&usg=AFQjCNGukh_d_Co5x-jjjV9UjtGctkEYiA&sig2=ZreZksv_Yb7i3fliKYAfjg&bvm=bv.92291466,d.bGQ, thermogravimetric analysis and inductively coupled plasma mass spectrometry. It was shown that the supported complex is a facile, eco‐friendly, recyclable, reusable and green catalyst for three‐component condensation of 2‐naphthol and acetamide with various aldehydes for the synthesis of 1‐amidoalkyl‐2‐naphthol derivatives under solvent‐free conditions. Also, in a further study, the catalytic application was studied in the synthesis of tetrahydrobenzo[b]pyran derivatives via the condensation reaction of malononitrile and dimedone with several aromatic aldehydes. The procedures suggested here for the synthesis of 1‐amidoalkyl‐2‐naphthol and tetrahydrobenzo[b]pyran derivatives offer several advantages, such as stability, recyclability and eco‐friendliness of the catalyst, simple experimental conditions, short reaction times, high to excellent yields and easy work‐up.

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Lectotypification in Stellaria (Caryophyllaceae)

Abstract: Three names in Stellaria, viz., S. semivestita Edgew., S. subumbellata Edgew. and S. webbiana (Benth. ex G. Don) Edgew. & Hook.f. are lectotypified here.

Cited by 2 publications

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Monitoring leakage currents of suspension insulators of high voltage overhead power lines

Monitoring leakage currents of suspension insulators of high voltage overhead power lines

Multi‐wall carbon nanotube supported Co (II) Schiff base complex: an efficient and highly reusable catalyst for synthesis of 1‐amidoalkyl‐2‐naphthol and tetrahydrobenzo[b]pyran derivatives

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