Autor: De, U.S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Assessment of extremes in air temperature over north-east and west coast regions of India
Autorzy:: Tondgimenba, J.
De, U.S.
Krishnakumar, G.
Powiązania:: https://bibliotekanauki.pl/articles/11981.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: assessment
extreme
air temperature
maximum temperature
minimum temperature
trend
climate change
coastal region
India
Opis:: The projected effect of climate change is the increase of both the frequency and intensity of extreme weather events. An attempt has been made to study the extremes in temperature over two regions of India i.e. North-East Region (NER) and West Coast Region (WCR). A detailed analysis indicated that in the NER, ten stations indicate increase in annual extreme minimum but significant at four stations. Post-monsoon season is very predominant where five stations show significant increase. In the WCR, all the stations indicate increasing trend in annual extreme maximum temperature significant at nine stations. Majority of the stations indicate significant increasing trend in all the seasons except monsoon season.
Źródło:: Papers on Global Change; 2012, 19
2300-8121
1730-802X
Pojawia się w:: Papers on Global Change
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Oviposition deterrent and ovicidal properties of Calotropis gigantea (L.) leaf extract to Paraeucosmetus pallicornis (Dallas) in rice
Autorzy:: Sjam, S.
Rosmana, A.
Dewi, V.S.
Sari, D.E.
Tresnaputra, U.S.
Herawati, A.
Powiązania:: https://bibliotekanauki.pl/articles/66375.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: oviposition
ovicidal property
Calotropis gigantea
leaf
plant extract
Paraeucosmetus pallicornis
Hemiptera
Lygaeidae
black ladybug
rice
plant pest
pest
Opis:: Paraeucosmetus pallicornis (Dallas) is a new pest in Indonesia which decreases rice production and quality. This pest causes the grains to become flat, hollow, brownish, break easily when milled, and bitter. This research represents the first study on Calotropis gigantea extract as an oviposition deterrent and ovicide against P. pallicornis. The study was conducted under laboratory conditions using four extract concentrations i.e. 0.5, 1.0, 1.5 and 2.0%. The oviposition deterrent effect was determined by counting the number of eggs laid and hatched. Percent reproductive control (PRC) and ovicidal activity was calculated using Tennyson’s formula. Results indicated that all concentrations of C. gigantea leaf extract reduced the number of eggs laid and hatched. The PRC also showed a gradual reduction of oviposition of the P. pallicornis and the ovicidal activity ranged between 86.5 and 100%. The extract concentration which showed the highest potential as an oviposition deterrent and ovicide against P. pallicornis was in the range of 1.0–2.0%. The overall results indicated that C. gigantea leaf extract has the potential to be used as an oviposition deterrent and ovicide against P. pallicornis.
Źródło:: Journal of Plant Protection Research; 2017, 57, 3
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Estimate of geopressures using conformal mapping in eccentrical wellbores
Autorzy:: Silva, U. F.
Júnior, M. I. de Q.
Lemos, S.
Silva, A. H. F.
Furriel, G. P.
Segatti, N.
Calixto, W. P.
Powiązania:: https://bibliotekanauki.pl/articles/136162.pdf
Data publikacji:: 2017
Wydawca:: EEEIC International Barbara Leonowicz Szabłowska
Tematy:: annular geometry
conformal mapping
surge pressure
swab pressure
yield power law drilling fluid
Opis:: The purpose of this work is to calculate Surge and Swab pressures in eccentric wells. Analysis of the phenomenon, in which fluid is confined between two eccentric cylinders, are made. Conformal mapping calculations is used to lead the original eccentric domain into equivalent concentric domain, since usual models only make calculation for concentric geometries. The results of this study, using the proposed methodology, are presented and discussed.
Źródło:: Transactions on Environment and Electrical Engineering; 2017, 2, 2; 1-10
2450-5730
Pojawia się w:: Transactions on Environment and Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Influence of powerful pulses of hydrogen plasma upon materials in PF-1000 device
Autorzy:: Pimenov, V.
Gribkov, V.
Dubrovsky, A.
Mezzetti, F.
Scholz, M.
Ugaste, U.
Dyomina, E.
Ivanov, L.
Maslyaev, S.
Miklaszewski, R.
Borowiecki, M.
De Chiara, P.
Pizzo, L.
Szydlowski, A.
Volobuev, I. V.
Powiązania:: https://bibliotekanauki.pl/articles/147096.pdf
Data publikacji:: 2002
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: dense plasma focus (DPF)
ion beam
irradiation
plasma jet
surface damage
test specimen
Opis:: The results of experimental investigations of powerful hydrogen plasma jets and fast ion beams interaction with various materials (austenitic chromium-manganese steels, pure vanadium, tungsten, graphite, copper, and their alloys: Cu-4 mass% Ni and Cu-10 mass% Ga) are presented. The materials were placed on the discharge axis of the PF-1000 device and irradiated with fluxes of fast ions (of energy in the range from tens keV up to several MeV) and with plasma streams (of power flux density q~(108 109) W/cm2). It was found that the fast ions and plasma streams caused different damages to the aforementioned materials. A diverse character of the damages to the individual investigated material was revealed. Some peculiarities of the process as well as the correlation between the surface density of the "macroscopic" structural defects (blisters and craters) and the fluence of the fast ions implanted in the specimen are discussed.
Źródło:: Nukleonika; 2002, 47, 4; 155-162
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki