Spectrum of the night airglow between 3 and 4 microns

1968 ◽  
Vol 46 (23) ◽  
pp. 2575-2578 ◽  
Author(s):  
R. MacDonald ◽  
H. L. Buijs ◽  
H. P. Gush
Keyword(s):  
Rotational Temperature ◽  
Rotational Structure ◽  
Intensity Analysis ◽  
Prominent Feature ◽  
Night Airglow

The spectrum of the night airglow has been measured between 3 and 4 μ at a limit of resolution of 4 cm−1, the observations being made at an altitude of 95 000 feet. The most prominent feature of the spectrum is the Δν = 1 sequence of hydroxyl bands. An intensity analysis of the rotational structure yields a rotational temperature of 234 °K. In addition, the ν3 band of methane near 3000 cm−1 and the ν3 band of CO2 near 2350 cm−1 appear in emission.

Study of the (4–1) and (5–2) Hydroxyl Bands in the Night Airglow

1971 ◽  
Vol 49 (19) ◽  
pp. 2509-2517 ◽  
Author(s):  
A. W. Harrison ◽  
W. F. J. Evans ◽  
E. J. Llewellyn
Keyword(s):  
Seasonal Variation ◽  
Rotational Temperature ◽  
Band Intensity ◽  
K Value ◽  
Intensity Fluctuations ◽  
Single Night ◽  
Summer Minimum ◽  
Night Airglow

A 1 year study of the (4–1) and (5–2) hydroxyl bands in the night airglow near 1 μ has revealed a non-uniform rotational temperature across the P branch of each band. The temperature increases with K′ value. There is a pronounced seasonal variation of temperature showing a summer minimum and winter maximum. The average measured brightness for the (4–1) band is 4.6 kR (winter) and 3.5 kR (summer), and for the (5–2) band is 5.8 kR (winter) and 4.3 kR (summer). It is shown that the time-averaged total band intensity fluctuations during a single night are quite large, sometimes a factor of 2, and are not definitely correlated with the rotational temperature during the same period.

Night airglow hydroxyl rotational temperatures

1970 ◽  
Vol 48 (15) ◽  
pp. 1766-1768 ◽  
Author(s):  
A. W. Harrison ◽  
E. J. Llewellyn ◽  
D. C. Nicholls
Keyword(s):  
Rotational Temperature ◽  
Apparent Increase ◽  
Night Airglow

Rotational temperatures have been determined from observations of the OH emission in the night airglow. It is proposed that an apparent increase in the derived rotational temperature with the value of K′ may be explained in terms of a nonisothermal emitting region.

The Morphology of Vacuolated Cells in the Liver Following Administration of Vitamin A.

1973 ◽  
Vol 31 ◽  
pp. 408-409
Author(s):  
Odell T. Minick ◽  
Hidejiro Yokoo ◽  
Fawzia Batti
Keyword(s):  
Electron Microscopy ◽  
Body Weight ◽  
Vitamin A ◽  
Light And Electron Microscopy ◽  
Liver Cells ◽  
Prominent Feature ◽  
Vascular Space ◽  
Vacuolated Cell ◽  
Vacuolated Cells ◽  
Vacuolated Cytoplasm

Vacuolated cells in the liver of young rats were studied by light and electron microscopy following the administration of vitamin A (200 units per gram of body weight). Their characteristics were compared with similar cells found in untreated animals.In rats given vitamin A, cells with vacuolated cytoplasm were a prominent feature. These cells were found mostly in a perisinusoidal location, although some appeared to be in between liver cells (Fig. 1). Electron microscopy confirmed their location in Disse's space adjacent to the sinusoid and in recesses between liver cells. Some appeared to be bordering the lumen of the sinusoid, but careful observation usually revealed a tenuous endothelial process separating the vacuolated cell from the vascular space. In appropriate sections, fenestrations in the thin endothelial processes were noted (Fig. 2, arrow).

Effects of a large mesospheric temperature enhancement on the hydroxyl rotational temperature as observed from the ground

2001 ◽  
Vol 106 (A12) ◽  
pp. 30381-30388 ◽  
Author(s):  
Stella M. L. Melo ◽  
R. P. Lowe ◽  
W. R. Pendleton ◽  
M. J. Taylor ◽  
B. Williams ◽  
...  
Keyword(s):  
Rotational Temperature ◽  
Mesospheric Temperature ◽  
Temperature Enhancement

Penentuan Metode Intensitas Hujan Berdasarkan Karakteristik Hujan dari Stasiun Pengamat Hujan Disekitar Kecamatan Karawang Timur

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Melisa Permatasari ◽  
M. Candra Nugraha ◽  
Etih Hartati
Keyword(s):  
Drainage System ◽  
Daily Rainfall ◽  
Intensity Analysis ◽  
Rain Intensity ◽  
Rainy Period ◽  
Discharge Plan ◽  
Calculation Results ◽  
Value Determination ◽  
Maximum Daily Rainfall ◽  
Method Approach

<p>The rain intensity is the high rainfall in unit of time. The length of rain will be reversed by the amount rain intensity. The shorter time the rain lasts, the greater of the intensity and re-period of its rain. The value of rain intensity is required to calculate the flood discharge plan on the drainage system planning area in East Karawang district. Determining the value rain intensity is required the maximum daily rainfall data obtained from the main observer stations in the Plawad station planning area. The method of determination rain intensity analysis can be done with three methods: Van Breen, Bell Tanimoto and Hasper der Weduwen. Selected method is based on the smallest deviation value. Determination deviation value is determined by comparing rain intensity value of Van Breen method, Bell Tanimoto, Hasper der Weduwen. By comparing rain intensity value of the Van Breen method, Bell Tanimoto, Hasper der Weduwen with the results of calculating three methods through the method approach Talbot, Sherman and Ishiguro. Calculation results show that the method of rain has smallest deviation standard is method Van Breen with Talbot approach for rainy period (PUH) 2, 5, 10, 25, 50 and 100 years.</p>

Duality, Opposition and Typology in the Qur'an: The Apocalyptic Substrate

2008 ◽  
Vol 10 (2) ◽  
pp. 23-49 ◽  
Author(s):  
Todd Lawson
Keyword(s):  
Structural Elements ◽  
Prominent Feature ◽  
Apocalyptic Literature ◽  
Cultural Traditions ◽  
Bona Fide

This article highlights two features of Qur'anic style and content: duality/opposition and typological figuration, which can be seen as providing a continuous and consistent ‘narrative stream’ through the Qur'an. It is of some interest that both of these features have been singled out as distinctive of apocalypse as a genre in the study of numerous religious and cultural traditions. As debate on whether or not the Qur'an is a bona fide example of apocalyptic literature quietly continues, the interplay of conceptual and substantive oppositions and dualities is discussed in order to highlight the importance of this prominent feature to both the form and contents of the Book. It is suggested that its function is profoundly related to the typological figuration indispensable to the Qur'anic depiction of, for example, the character of the prophets and therefore prophethood. Whether or not this represents a genuine instance of apocalyptic literature, it nonetheless remains that the prominence of the motif renders the Qur'an susceptible of a reading expressive of something called an apocalyptic imagination. It is hoped that this article succeeds in demonstrating that in fact these apparently familiar subjects are stimulated to new life by considering them as defining, interlocking, structural elements of a distinctive Islamic apocalypse.

Multiculturalism

2018 ◽  
Author(s):  
Nasar Meer
Keyword(s):  
National Identity ◽  
Race Relations ◽  
National Identities ◽  
Policy Debate ◽  
Prominent Feature ◽  
Religious Minorities ◽  
The Core ◽  
National Question ◽  
Multicultural Citizenship ◽  
Future Status

The purpose of this chapter is to locate the discussion about Muslims in Scotland in relation to questions of national identity and multicultural citizenship. While the former has certainly been a prominent feature of public and policy debate, the latter has largely been overshadowed by constitutional questions raised by devolution and the referenda on independence. This means that, while we have undoubtedly progressed since MacEwen (1980) characterised the treatment of ‘race-relations’ in Scotland as a matter either of ‘ignorance or apathy’, the issue of where ethnic, racial and religious minorities rest in the contemporary landscape remains unsettled. One of the core arguments of this chapter is that these issues are all interrelated, and that the present and future status of Muslims in Scotland is tied up with wider debates about the ‘national question’. Hitherto, however, study of national identity in Scotland has often (though not always) been discussed in relation to the national identities of England, Wales and Britain as a whole.

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