张海潮副总裁在中国石化销售企业技能竞赛和技术比武活动总结表彰大会上的讲话(摘要)

1 2006年竞赛比武活动的简要总结 这次中国石化销售企业职业技能竞赛和技术比武活动，是销售系统组建以来历时最长、参赛人数最多、规模最大的一次全员大练兵，今年又是竞赛比武的第一年，时间紧、任务重。在总部领导及有关部门的关心支持下，各级销售企业高度重视，精心组织，经过8个多月的辛勤努力，圆满完成了本年度竞赛比武的各项任务，取得了阶段性的成果。回顾今年的竞赛比武活动，主要有以下三个特点：     

Perceptual Temporal Quality Metric for Compressed Video

This paper presents a metric to quantify frame loss according to the impact on perceived temporal quality. This metric particularly aims at measuring the temporal quality degradation caused by both regular and irregular frame loss. Experimental results with subjective viewing demonstrate high performance on prediction of perceptual temporal quality.     

Managing information technology in the nineties

Business, not technology leaders should manage the change of Information Technology (IT) from a self-contained business support unit of the sixties to a distributed strategic business function of the nineties. Top management should recognize that a good business plan can only be developed and executed through the partnership between the business unit managers and the managers of the financial, the personnel, and the IT resource units. The technical problems associated with the management of IT may again be the easier part of the total management challenge.     

HPLC ANALYSIS OF ALL POSITIONAL ISOMERS OF THE MONOHYDROPEROXIDES FORMED BY SOYBEAN LIPOXYGENASES DURING OXIDATION OF LINOLEIC ACID

Linoleic acid was oxidized by soybean lipoxygenases I and II (LOX-I and LOX-II). The monohydroperoxides (HPOD) formed were isolated and then hydrogenated. The mixtures of hydroxystearic acid isomers obtained were converted to phenacylesters and analyzed by HPLC. The isomers were identified on the basis of cochromatography with reference materials and mass spectrometry. It was shown that LOX-II forms mainly the 9-and 13-HPOD (94%) and in addition the 8-, 10-, 12- and 14-HPOD as minor components (6%) of the monohydroperoxide fraction. The minor hydroperoxides were absent when the catalyst was LOX-I. The presence of the poly ene crocin in the reaction system containing LOX-II changed the composition of the HPOD mixture. The proportion of the 13-HPOD increased at the expense of both the 9-HPOD and the minor hydroperoxides.