نتایج جستجو برای: shallow depth

تعداد نتایج: 191614  

ژورنال: علوم آب و خاک 2007
علیرضا سلطانی قلعه جوقی, , محمد لغوی, ,

Tractive efficiency and fuel consumption of Massey Ferguson (MF399) and John Deere (JD 4230) tractors during plowing with moldboard plow were evaluated and compared. The tests were conducted at the Experimental Station, College of Agriculture, Shiraz University, in a field with sandy clay soil at average moisture content of 18% d. b. from zero to 30 cm depth. A randomized complete block d...

ژورنال: علوم آب و خاک 2007
مجید کاظمی نجف آبادی, , محمدحسین رئوفت, ,

The present research was intended to alleviate the problems and costs of deep tilling in sugarcane production in Mian-Ab sugarcane farms located in Khuzestan province, Iran. The main objective was to investigate the feasibility of subsoiling operations with bentleg subsoiler (BLS) equipped with shallow tines, a combination expected to increase the critical depth resulting in less power consumpt...

2009
Willy Hereman

Glossary Deep water A surface wave is said to be in deep water if its wavelength is much shorter than the local water depth. Internal wave A internal wave travels within the interior of a fluid. The maximum velocity and maximum amplitude occur within the fluid or at an internal boundary (interface). Internal waves depend on the density-stratification of the fluid. Shallow water A surface wave i...

Journal: :J. Sci. Comput. 2005
Clint Dawson Vadym Aizinger

We describe the application of a local discontinuous Galerkin method to the numerical solution of the three-dimensional shallow water equations. The shallow water equations are used to model surface water flows where the hydrostatic pressure assumption is valid. The authors recently developed a DGmethod for the depth-integrated shallow water equations. The method described here is an extension ...

Journal: :The Journal of the Acoustical Society of America 1976

Journal: :British Journal of Ophthalmology 1959

علیرضا سلطانی قلعه جوقی, , محمد لغوی, ,

Tractive efficiency and fuel consumption of Massey Ferguson (MF399) and John Deere (JD 4230) tractors during plowing with moldboard plow were evaluated and compared. The tests were conducted at the Experimental Station, College of Agriculture, Shiraz University, in a field with sandy clay soil at average moisture content of 18% d. b. from zero to 30 cm depth. A randomized complete block design ...

Journal: :Applied optics 2010
Steven Mitchell Jeffrey P Thayer Matthew Hayman

A bathymetric, polarization lidar system transmitting at 532 nm and using a single photomultiplier tube is employed for applications of shallow water depth measurement. The technique exploits polarization attributes of the probed water body to isolate surface and floor returns, enabling constant fraction detection schemes to determine depth. The minimum resolvable water depth is no longer dicta...

مجید کاظمی نجف آبادی, , محمدحسین رئوفت, ,

The present research was intended to alleviate the problems and costs of deep tilling in sugarcane production in Mian-Ab sugarcane farms located in Khuzestan province, Iran. The main objective was to investigate the feasibility of subsoiling operations with bentleg subsoiler (BLS) equipped with shallow tines, a combination expected to increase the critical depth resulting in less power consumpt...

2010
Edward Luong

Photographers often wish to control the depth of field. In particular, for portrait photography, a shallow depth of field can have dramatic effects on the composition and the feel of the picture. For example, a shallow depth of field can help direct attention to the subject by blurring out objects too close or too far from the camera, such as distracting objects or faces. Also, focusing on an o...

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