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81.
Gulam Rasool Bhat S. Balaji Bikram S. Bali Vazeem Iqbal Balakrishna Hamid Hussain 《Journal of the Geological Society of India》2018,91(1):81-90
A comprehensive paleoseismological investigations was carried out along Joggers Park Fault (striking NW-SE) reveals pervasive traces of active compressional tectonics (blind thrusting) and shallow-surface recent tectonic signatures along the fault. The geometry and trends in the tectonic deformation of the blind zone (shallow-subsurface stratigraphy) were examined with GPR and electrical resistivity tomography (ERT) and vertical electrical sounding (VES), strongly demonstrates severe tectonic deformation (persistent tectonic style) from Quaternary to Holocene times in a compressive stress regime. The surface manifestation of deformation (topographic expression) along the fault can be marked as hanging wall uplift and can be visually observed in the exposed sections at nearly half kilometer distance from the table land of Joggers Park in the form of a well-defined disconnected high angle thrust fault scarp (reverse fault). The reverse fault kinematically and intimately linked with underlying fault geometry provides adduced evidence to evaluate strike displacement profiles (displacement length relationship) along the fault. In addition, deformed stacked colluvial wedge below the scarp represents a powerful basis to calibrate recent and long term slip rates of the underlying fault. 相似文献
82.
Kamini Narain Taiyyaba Yazdani Mohd. Muzamil Bhat Mohmmad Yunus 《Environmental Earth Sciences》2012,66(3):977-984
Molasses-based distilleries are one of the most polluting industries generating large volume of wastewater. Distillery effluent
(DE) on its discharge alters the physical and chemical properties of the soil. This study has been conducted to assess the
distribution of heavy metals and its effect on physiochemical and structural changes of soil which has been treated with diluted
and undiluted effluents. The soil has been assayed both before and after crop plantation. Out of the crop plants studied,
Cicer
arietinum was least effected and more effective than Pisum
sativum in diminishing the heavy metals from soil. However, only at higher concentration DE has some adverse impact on the nutrient
contents of the soil. Fourier transform infrared spectrum (FTIR) study of the soil indicated the presence of –OH, –NH, –COOH
groups. It was also noted that the soil amended with different concentration of DE and on which Cicer and Pisum were grown has varied IR spectrum. These variations show the presence of different functional groups of soil before and after
plants were grown. The presence of inorganic carbonate was found in soil planted with Cicer from 10 to 50% of DE, whereas aliphatic primary amides were observed up to 25 and 100% concentrations of DE in soil planted
with Pisum. The appearance of inorganic nitrates, carbonates, aliphatic hydrocarbons and aliphatic primary amides at various concentrations
of DE showed a change in functional groups probably because of the differential breakdown of parent component present in the
effluent. Besides our main finding that Cicer is a very useful crop species in remediating the soil which has inflicted with even undiluted DE, it is also validated through
FTIR spectra that IR technique is an efficient tool in studying the structural changes of soil and with some degree of caution
may be summed up that FTIR may be used to correlate the relative efficacy of plants to transform organic contaminants. 相似文献
83.
M. Venkataramana K. Sengupta G. S. Bhat S. Ameenulla J. V. S. Raju 《Journal of Earth System Science》2000,109(2):239-247
This paper describes measurement of air-sea parameters and estimation of sensible and latent heat fluxes by the “Inertial-Dissipation”
technique over south Bay of Bengal. The data were collected on ORV Sagar Kanya during BOBMEX-Pilot cruise during the period
23rd October 1998 to 12th November 1998 over south Bay of Bengal. The fluxes are estimated using the data collected through
fast response sensors namely Gill anemometer, Sonic anemometer and IR Hygrometer. In this paper the analyses carried out for
two days, one relatively cloud free day on November 3rd and the other cloudy with rain on November 1st, are presented. Sea
surface and air temperatures are higher on November 3rd than on November 1st. Sensible heat flux for both the days does not
show any significant variation over the period of estimation, whereas latent heat flux is more for November 3rd than November
1st. An attempt is made to explain the variation of latent heat flux with a parameter called thermal stability on the vapor
transfer from the water surface, which depends on wind speed and air to sea surface temperature difference. 相似文献
84.
Shiv Jyoti Pandey G. M. Bhat Shveta Puri Neha Raina Yudhbir Singh S. K. Pandita Mithila Verma B. K. Bansal Anup Sutar 《Journal of Seismology》2017,21(3):525-538
Two moderate earthquakes of Mw 5.7 on the first of May and Mw 5.2 on the second of August occurred in the Kishtwar region in the year 2013. Our broadband seismic observatories located in the region recorded these events and the aftershocks. We analyzed these data to understand the seismotectonics of this region. Most of the events were located between 33.03° to 33.29° N latitude and 75.40° to 76.07° E longitude. Focal depths of these shallow earthquakes range from 7 to 12 km and are confined between Panjal Thrust (PT) and Kishtwar Window (KW). Spectral analysis of these events reveals that stress drop, source radius, corner frequency, and moment magnitude varied between 3.3 and 70.1 bars, 0.121 and 3.55 km, 0.397 and 6.06 Hz, and Mw 2.2 and Mw 5.7, respectively. The low stress drop of small-magnitude earthquakes reveals the brittle nature of the upper crust which is coincident with the field observations. The variation of stress drop with magnitude shows positive correlation whereas no such relation was observed between stress drop and depth of focus. The b value calculated (0.83) for the area reveals high stress accumulation within the incompetent rock zones in the area. 相似文献