Ground Penetrating Radar Survey for the Location and Assessment of the Hydrocarbon Plumes at Gas Station Installations

The present paper describes the implementation of GPR 3D survey for detecting and delineating possible remains of hydrocarbon plumes on a gas station. The 3D-imaging was used for the detection of anomalous zones that were analyzed with some relevant signal attributes extracted by digital signal processing. These signal attributes or parameters have been the frequency of the maximum energy concentration on time-frequency distribution and instantaneous amplitude that could be related to the local response of the electromagnetic interaction and the presence of hydrocarbon plumes or soil contaminated areas. The implementation methodology took place at a gas station monitored with a piezometric sensor installation with soil layer information. The 3D-imaging of processed data and its slicing tool permits visualizing expected targets as pipes, tanks and installations in the subsoil exposing the anomalous zones for refined analyses. This further processing has used some spectral attributes of the signal to assess the real presence of the total petroleum hydrocarbons (TPH) providing a new effort to simplify and overcome the current state of the geophysical methods able to assess the presence of hydrocarbon plumes in industrial environments regarding the time cost of the survey and the traceable indication of the spectral shiftment shown in the plume volume.

Relevance of Marketing Strategies for Gas Stations in China - An Analysis Using SPSS

This study aims to find out the relevance of marketing strategies for gas stations in China.According to IBISWorld,the companies holding the largest market shares in China’s gas station industry include China Petrochemical Corporation,China National Petroleum Corporation,Sinochem Corporation,China National Offshore Oil Corporation,and BP(China)Holdings Limited.Marketing has changed over the past several years.Similarly,gas station marketing is all about more customers,greater sales,and higher profits.Technology provides many different marketing tools to see more fresh faces at the door,increase repeat sales,and improve profits.Word-of-mouth advertising should be encouraged,especially when contests are being held.The prizes from these contests may include car essentials,free coffee,free car wash,or coupons to be used at convenience stores.Customers who have won these contests would surely go around advertising the particular gas station,ultimately bringing in more customers.Other than that,managers can boost the sales volume through radio promotions as well.This study also aims to give future businessmen and women some ideas on how to deal with different kinds of strategies when it comes to marketing,especially in China in hope to cater and prove to the people of China the possibility of promoting businesses,such as the oil industry.

Development of a ~3He Gas Filling Station at the China Spallation Neutron Source

At the China Spallation Neutron Source(CSNS), we have developed a custom gas-filling station, a glassblowing workshop, and a spin-exchange optical pumping(SEOP) system for producing high-quality ^(3)He-based neutron spin filter(NSF) cells. The gas-filling station is capable of routinely filling ^(3)He cells made from GE180 glass of various dimensions, to be used as neutron polarizers and analyzers on beamlines at the CSNS. Performance tests on cells fabricated at our gas-filling station are conducted via neutron transmission and nuclear-magneticresonance measurements, revealing nominal filling pressures, and a saturated ~3He polarization in the region of 80%, with a lifetime of approximately 240 hours. These results demonstrate our ability to produce competitive NSF cells to meet the ever-increasing research needs of the polarized neutron research community.