Cotton production under risk: a simultaneous adoption of risk coping tools     

Farhad Zulfiqar  Raza Ullah  Muhammad Abid  Abid Hussain 《Natural Hazards》2016,84(2):959-974

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Geochemistry of Archaean amphibolites from Karnataka State,Peninsular India     

K. Satyanarayana  S.M. Naqvi  V.Divakara Rao  S.M. Hussain 《Chemical Geology》1974,14(4):305-315

Ortho- and para-amphibolites occur throughout the Dharwar schists, gneisses and ultramafics in Karnataka State, India. From the chemical data alone, these ortho- and para-amphibolites cannot be very clearly differentiated. While the ortho-amphibolites follow the Karroo trend, the para-amphibolites appear to have been evolved from the metamorphism of low-Si and -K graywackes. The amphibolitic xenoliths occurring in Peninsular gneisses follow both the igneous and graywacke field, indicating that probably both para and ortho types constitute these enclaves. Their trace element concentrations, like those of Ni, Co and Cr, are not related to the Mg and Fe contents of the amphibolites. Probably these amphibolites have been derived from basic rocks, which were predominant over the Archaean crust, either directly or after having gone through a sedimentary cycle. The higher concentration of Ni, Co, Cr and other elements, such as Mg, in these amphibolites, as compared with younger oceanic basalts, thus indicates the higher concentration of these elements in Archaean basalts and the proto-mantle.  相似文献   

Spatial dimension of impact,relief, and rescue of the 2014 flood in Kashmir Valley     

Malik  Ishfaq Hussain 《Natural Hazards》2022,110(3):1911-1929

Flood relief and rescue form an important basis of disaster management, and the assessment of flood damage is a critical component of flood risk management. In its recent history, Kashmir Valley witnessed the floods in 2014, 2015, 2017, 2019, 2020, and 2021, but the worst flood in the living memory of the people was witnessed in the year 2014, which created widespread loss in economic and societal aspects. The present study discusses the spatial dimension of impact, relief, and rescue of the flood of 2014 in the Kashmir Valley. It analyses the distribution of relief and politics of relief and rescue and highlights the role of the communitarianism and the heroics of the community members in dealing with floods. The study provides the data of relief distribution under different government schemes and reveals that the relief was not distributed equally in various districts of the valley. The study relies on primary and secondary sources of data. Ethnographic approach was used for acquiring primary data because it provides the complex narratives of disasters and the political and social rupture experienced during the disasters. The data have been analysed with the help of Geographic Information System.

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A Review on Chemical Stabilization of Peat     

Khanday  Suhail Ahmad  Hussain  Monowar  Das  Amit Kumar 《Geotechnical and Geological Engineering》2021,39(8):5429-5443

Geotechnical and Geological Engineering - Peat is a problematic or weak soil derived from fossilized organic material. The characteristics of peat like low shear strength (3–16 kPa),...  相似文献   

Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha     

G. A. J. Hussain  A. Collier Cameron  M. M. Jardine  N. Dunstone  J. Ramirez Velez  H. C. Stempels  J.-F. Donati  M. Semel  G. Aulanier  T. Harries  J. Bouvier  C. Dougados  J. Ferreira  B. D. Carter  W. A. Lawson 《Monthly notices of the Royal Astronomical Society》2009,398(1):189-200

We have produced brightness and magnetic field maps of the surfaces of CV Cha and CR Cha: two actively accreting G- and K-type T Tauri stars in the Chamaeleon I star-forming cloud with ages of 3–5 Myr. Our magnetic field maps show evidence for strong, complex multipolar fields similar to those obtained for young rapidly rotating main-sequence stars. Brightness maps indicate the presence of dark polar caps and low-latitude spots – these brightness maps are very similar to those obtained for other pre-main-sequence and rapidly rotating main-sequence stars.
Only two other classical T Tauri stars have been studied using similar techniques so far: V2129 Oph and BP Tau. CV Cha and CR Cha show magnetic field patterns that are significantly more complex than those recovered for BP Tau, a fully convective T Tauri star.
We discuss possible reasons for this difference and suggest that the complexity of the stellar magnetic field is related to the convection zone; with more complex fields being found in T Tauri stars with radiative cores (V2129 Oph, CV Cha and CR Cha). However, it is clearly necessary to conduct magnetic field studies of T Tauri star systems, exploring a wide range of stellar parameters in order to establish how they affect magnetic field generation, and thus how these magnetic fields are likely to affect the evolution of T Tauri star systems as they approach the main sequence.  相似文献   

Ostracoda as an aid in identifying 2004 tsunami sediments: a report from SE coast of India     

S. M. Hussain  S. P. Mohan  M. P. Jonathan 《Natural Hazards》2010,55(2):513-522

Four short core samples were collected from the creek, estuarine regions of southeast (SE) coast of India affected by the 2004 Asian Tsunami. The study is aimed to signify the importance of ostracoda species in identifying major natural events (e.g. Tsunamis) in the coastal regions. The presence of many marine ostracoda species in the beach areas and the comparative studies with earlier reports from SE coast indicate that these species were brought by the high-energy tsunami waves. The depositional feature of ostracoda species in the beach and estuarine region also infers on the nature and force of tsunami waves in a particular region. The results clearly support that microfossils can be used to identify the major natural events close to coastal regions.  相似文献   

Multi temporal ERS-1 SAR data for identification of rice crop     

N K Patel  T T Medhavy  C Patnaik  A Hussain 《Journal of the Indian Society of Remote Sensing》1995,23(2):33-39

Microwave sensors having all-weather capabilities provide an opportunity to monitor rice grown in monsoon season. An attempt has been made to identify rice crop using multitemporal ERS-1 SAR data in C-band (5.3 GHz). Data acquired on August 15 (D1), September 19 (D2), October 24 (D3) and November 28 (D4) 1993 were taken. Combinations of data acquired on different dates were used for identification of rice crop. Single-date IRS-1B LISS II data in visible and NIR bands acquired on October 23, 1993 was also used for comparison of estimated rice area. Analysis of the results has shown that a combination of SAR data acquired at the tillering (August), booting (September) and heading (October) stages of rice crop enabled identification and area estimation of rice crop grown under lowland conditions. Single-date SAR data acquired in the month of October was found to be better for identification of rice compared to other dates.  相似文献   

Use of breakdown coefficients in turbulent jets to determine the universal exponent μ     

B. R. Satyaprakash  R. A. Antonia  D. H. Britz  A. K. M. F. Hussain 《Boundary-Layer Meteorology》1982,24(1):77-87

Second-order moments of the breakdown coefficients q _r,l of the squared velocity derivative in plane and circular jets indicate a value of the exponent which is larger than that obtained by other methods using the same data or that previously reported by other workers using the same method on atmospheric data. The difference may be due to a failure of the present data to satisfy the first condition of scale similarity, possibly because of the relatively small Reynolds numbers of the laboratory flows. The dependence of the variance of ln q _r,l on the length scale l appears to be independent of Reynolds number.  相似文献   

Cornish mackerel     

V.W. Talbot  R.J. Magee  M. Hussain 《Marine pollution bulletin》1976,7(5):84-86

Port Phillip Bay receives the industrial and domestic effluents from Melbourne and a recent survey revealed an accumulation of a variety of heavy metals in bottom sediments. These studies have now been extended to survey the accumulation in oysters and mussels, and in most areas in the Bay these bivalves are heavily contaminated with cadmium. Oysters accumulate more of this metal than mussels.  相似文献   

The behaviour of short-lived radiogenic lead isotopes (²¹⁴Pb and²¹²Pb) in groundwaters and laboratory leaching experiments     

N. Hussain  S. Krishnaswami 《Earth and Planetary Science Letters》1982,58(3):430-438

The concentrations of²¹⁴Pb (half-life=26.4minutes) and²²Rn (half-life=3.84days) have been measured in deep groundwaters of Gujarat, India. The results show that the abundance of²¹⁴Pb in the water is only ～25% of that expected from its production through the radioactive decay of dissolved²²²Rn. This deficiency if modelled in terms of a first-order removal, yields a residence time of ～10 minutes for²¹⁴Pb in these waters. The estimated residence time for²¹⁴Pb is the shortest observed for any nuclide in natural water systems and suggests that reactive nuclides lead like could be removed from aqueous phases to adjoining solid surfaces on extremely short time scales. Results of laboratory experiments using the²¹²Pb-²²⁴Ra pair are compatible with the observed fast removal of²¹⁴Pb from groundwaters.Re-evaluation of²³⁴Th residence times in these waters using a model with a recoil flux of²³⁴Th into aqueous phase, the same as that of²²²Rn, yields values in the range of 23 to<176 minutes, very similar to that of²¹⁴Pb. This “concordancy” in the residence times seems to suggest that the geochemical behaviour of²³⁴Th and²¹⁴Pb in these waters is quite similar.  相似文献