نتایج جستجو برای: electrical sounding

تعداد نتایج: 198576  

1987
Peter Ladefoged Ian Maddieson Michel Jackson Marie K. Huffman

A well defined voice source is essential for synthesizing different varieties of natural sounding speech. Some insight into the most appropriate specification of this source can be found by analysing phonation typesindifferent languages. Using inverse filtering it is possible to recover the corresponding glottalpulse shapes. Virtually the only reliable measure that can be used to distinguish th...

2011
Herman Wahid Hiep Nguyen-Duc

Since the last few decades, electrical methods have been widely used in geophysical surveying to obtain high-resolution information about subsurface conditions. Resistivity is an important parameter in judging the ground properties, especially detecting buried objects of anomalous conductivity. Electrical DC resistivity sounding is the commonly used technique to obtain the apparent 2-D resistiv...

1997
Francisco J. Esparza Enrique Gómez-Treviño

An automatic inverse method has been developed for generating layered earth models from electrical sounding data. The models have the minimum number of layers required to fit a resistivity sounding curve or a combined resistivity and induced polarization sounding. The ground is modeled using a very large number of thin layers to accommodate arbitrary variations. The properties of the layers are...

Journal: :فیزیک زمین و فضا 0
ابراهیم حسین زاده دانشجوی کارشناسی ارشد ژئوفیزیک، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران محمدکاظم حفیظی دانشیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران

mrs method is one of the new geophysical methods that directly detects the groundwater. by using this method, one can determines some parameters of aquifer (porosity, permeability and transmissivity). the purpose of this research is the application of mrs method in the conductive ground. combination of mrs and rs method is used for better detection of the aquifer in the region of abyek located ...

Journal: :Journal of Geoscience, Engineering, Environment, and Technology 2018

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