The vertical cable method for acquiring and processing pre-stack 3-D marine seismic data is based on the technology developed by the US Navy for antisubmarine warfare. In order to achieve the maximum utili- zation of ...The vertical cable method for acquiring and processing pre-stack 3-D marine seismic data is based on the technology developed by the US Navy for antisubmarine warfare. In order to achieve the maximum utili- zation of vertical cable field data, a new separation method of the up-going and down-going wave fields of the vertical cable data processing was developed in this paper, which is different from the separation of the down-going and up-going wave fields of normal VSP data processing. In tests with synthetic modeling data and actual field data, this newly developed method performs well and is also computationally simpler without pre-assumption conditions.展开更多
Since 2007,due to the impacts of some negative factors,many small-and-medium-sized enterprises have gotten into troubles.Facing the fierce competitive environment,some domestic textile and apparel enterprises began to...Since 2007,due to the impacts of some negative factors,many small-and-medium-sized enterprises have gotten into troubles.Facing the fierce competitive environment,some domestic textile and apparel enterprises began to transfer to Southeast Asia,such as Vietnam and Thailand,etc,as their new development strategy.展开更多
文摘The vertical cable method for acquiring and processing pre-stack 3-D marine seismic data is based on the technology developed by the US Navy for antisubmarine warfare. In order to achieve the maximum utili- zation of vertical cable field data, a new separation method of the up-going and down-going wave fields of the vertical cable data processing was developed in this paper, which is different from the separation of the down-going and up-going wave fields of normal VSP data processing. In tests with synthetic modeling data and actual field data, this newly developed method performs well and is also computationally simpler without pre-assumption conditions.
文摘Since 2007,due to the impacts of some negative factors,many small-and-medium-sized enterprises have gotten into troubles.Facing the fierce competitive environment,some domestic textile and apparel enterprises began to transfer to Southeast Asia,such as Vietnam and Thailand,etc,as their new development strategy.
