SYSTEM Ⅳ is a new type of full-digital acquisition system imported not long before by our country, and SN388 is technically approximately obsolete and traditional 24-bit analog geophone acquisition system.
Used for now the neritic earthquake explore the solid hour in inside monitors the underwater the Digipoint System that an I/O company of for learning positioning system( position the system two times namely) primarily is the United States produce that bottom of sea press the position that give or get an electric shock the detector learns to position the system with the international Sonardyne TZ/ OBC the voice of in British Sonardyne that limited company produce.
Our field experiments demonstrate that our new LPG can be used to substitute for VGs in order to eliminate phase, frequency and energy differences between different geophone systems commonly used in transition areas.
Mathematical geophone (MG) and equal-time stacking (ETS) principles are used to implement seismic prestack forward modeling with irregular surfaces using the one-way acoustic wave-equation.
In view of the seismic exploration problem of thin sand reservoirs in the Songliao Basin, this paper puts forward a migration imaging method using CGP (common geophone point) stacked cylindrical waves.
In this paper, high performance liquid chromatography (HPLC) along with mass spectrometry (MS) and HPLC along with a diode array detector (DAD) was used to study the compound Ilex pubescens extract.
A better separation electropherogram was obtained when a 20 mM borate buffer at pH 8.5 and a fused silica capillary with an inner diameter of 100 μm with a total length of 47 (40 cm to the detector window) were used.
Energy Dispersive X-ray Detector quantitative analysis gave a 2: 3 stoichiometric ratio of Bi to Te, which was consistent with X-ray Diffraction results.
Expressions obtained describe the qualitative behavior of the combination-frequency signal levels produced at the outputs of horizontally and vertically oriented geophones moving over the free surface of the elastic half-space.
In this paper, we review the differences between velocity geophones (VG) and acceleration geophones (AG) and their effect on seismic signals acquired in onshore-offshore transition areas.
Conventional land vertical seismic profiling (VSP) exploration usually uses P-wave sources and three-component geophones for receivers, emphasizing P-and converted S-waves.