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排序方式： 共有255条查询结果，搜索用时 421 毫秒
81.
P C S Devara P E Raj G Pandithurai R S Maheskumar K K Dani 《Journal of the Indian Society of Remote Sensing》1997,25(4):225-238
Lidar has evolved as one of the powerful and versatile techinqne for atmospheric monitoring and geophysical and hydrographic studies from different observational platforom. This paper discusses the recent advances that have taken place in the lidar technology for rnulti-dimensional atmospheric, hydragraphic and vegetation monitoring together with the results of some specific atmospheric studies carried our for the past ten years using the lider systems built at the Indian Institute of Tropical Meteorotogy (IITm) Pune. 相似文献
82.
83.
Sensitivity of the radar scattering coefficient to the oceanic wind vector in the midangular range for frequencies from L-
to Ku- band is studied. This is based on computations of scattering coefficient via the two-scale scattering theory employing
a semi-empirical model for the ocean spectrum suggested by Fung and Lee and the slope distribution by Cox and Munk. Higher
frequency and incident angles of over 45 degrees seem to yield better wind sensitivity. 相似文献
84.
A Bianchi type-III string cosmological model with bulk viscous fluid for massive string is investigated. To get a determinate
solution, a supplementary condition B=C
n, between metric potentials, is used whereB and C are function of time alone. The behaviour of the model in presence and absence of bulk viscosity, is discussed.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
85.
Bianchi Type I magnetized Cosmological model for perfect fluid distribution is investigated. The magnetic field is due to
an electric current produced along x-axis. The distribution consists of an electrically neutral perfect fluid with an infinite electrical conductivity. To get
a determinate solution, a supplementary conditionA = BC between metric potentials is used. The behaviour of the model in presence and absence of magnetic field is also discussed.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
86.
In this paper, we have investigated some tilted Bianchi Type I models with heat conduction filled with disordered radiation
of perfect fluid. To get a determinate solution, we have assumed a condition A =(BC)
n between metric potentials. Alternatively we have discussed the case A=(BC)
1/3 for which tilted nature of the model is preserved. The various and geometrical features with singularities in the models
are also discussed.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
87.
G. Handler T. Arentoft R. R. Shobbrook M. A. Wood L. A. Crause P. Crake F. Podmore A. Habanyama T. Oswalt P. V. Birch G. Lowe C. Sterken P. Meintjes J. Brink C. F. Claver R. Medupe J. A. Guzik T. E. Beach P. Martinez E. M. Leibowitz P. A. Ibbetson T. Smith B. N. Ashoka N. E. Raj D. W. Kurtz L. A. Balona D. O'donoghue J. E. S. Costa § M. Breger 《Monthly notices of the Royal Astronomical Society》2000,318(2):511-525
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