SEG News

Abstract

House made two separate tours of China in April to strengthen the relationship between SEG and its constituents. Their visits marked the significance of SEG members and corporate members in the region. From 12-21 April, Abriel traveled to Beijing and Qingdao where he visited BGP, the Aramco Beijing Research Center (BRC), and the China University of Petroleum (CUP). House represented SEG at the SEG/Sinopec Forum on Foothill Exploration, 22-24 April, in Nanjing. Abriel's main events in Qingdao centered around the CGS/ SEG International Geophysical Conference, which had as its theme "geophysical challenges and prosperous development," and a two-day short course on reservoir geophysics. The short course was offered by Xingyao Yin. Thanks to three outstanding technical cochairs, Yin (CUP), Yanghua Wang (Imperial College London), and Zhijing (Zee) Wang (Chevron), as well as university faculty, the conference attracted more than 500 attendees for more than 400 presentations in eight concurrent oral and poster sessions. Thirty-five students, 30 professionals from BGP, the China National Petroleum Corporation (CNPC), Daqing, the China National Offshore Oil Corporation, and five university students, attended the two-day lecture and team problem-solving sessions. The short course was scheduled two days ahead of the conference on the beautiful CUP campus in Qingdao. Abriel kicked off the conference with the CUP president and delivered a keynote speech on "Computer modeling of geoscience data: Its impact to oil and gas development," in which he promoted the research process of SEAM projects and the value of SEAM data. The highlights of Abriel's trip to Beijing and Qingdao were the conference itself and the business meetings with BRC, BGP, CUP, the Chinese Geophysical Society, and the SEG China Advisory Board. On 13 April, he visited the SEG Beijing office, where SEG China staff members were working hard to get ready for the upcoming conference in Qingdao. In the Saudi Aramco Beijing office, he was hosted by Khalid Al-Rufaii (vice president of BRC), Ali Al-Meshari (manager of EXPEC Advanced Research Center, Dhahran), and Mustafa Al-Ali (head of Aramco Geophysical Technology, Dhahran). Aramco hopes to make research breakthroughs helpful to Saudi production and expects to license or patent results. The company is looking for a substantial number of research geophysicists. BRC sees SEG as a vital partner in geophysical content and market connectivity. During the BGP visit, the hosts were BGP President Gou Liang, Vice President Zheng Huasheng, and several SEG members. They made sure to impress on SEG that they are the world's largest land seismic contactor and also engaged in processing and analysis to become competitive as a full-service provider. They have 30,000 geophysical employees. Zheng emphasized that BGP understands the value of certification and supports SEG initiatives Downloaded 10/16/20 to 44.224.250.200.

Rugby league ball carrier injuries: The relative importance of tackle characteristics during the European Super League

“…descriptor present = 1, descriptor absent = 0). Random forest models were built using the randomForest package (Liaw & Wiener, 2002) to (1) reduce the dimensionality of the dataset by evaluating which tackle characteristic variables possessed relative importance (compared to other variables) for classifying tackle events resulting in either injurious or non‐injurious outcomes (binary) for the ball carrier and (2) determine the sensitivity and specificity of the identified characteristics to classify injury and non‐injury events for the ball carrier. Relative importance was determined by a Gini index; with a greater decrease in Gini index determining greater relative importance (Goldstein, Polley, & Briggs, 2011).…”