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| 1 | Formation mechanisms of heavy oils in the Liaohe Western Depression,Bohai Gulf Basin显示文摘The Liaohe Oilfield in the Liaohe Western Depression of the Bohai Gulf Basin is the third-largest oil producing province and the largest heavy oil producing oilfield in China. A total of 65 oil samples,35 rock samples and 36 reservoir sandstone samples were collected and analyzed utilizing conventional geochemical and biogeochemical approaches to unravel the mechanisms of the formation of the heavy oils. Investigation of the oils with the lowest maturity compared with the oils in the Gaosheng and Niuxintuo oilfields indicates no apparent relation between the maturity and physical properties of the heavy oils. It is suggested that the heavy oil with primary origin is not likely the main mechanism re-sponsible for the majority of the heavy oils in the Liaohe Western Slope. The absence and/or depletion of n-alkanes etc.,with relatively low molecular weight and the occurrence of 25-norhopane series in the heavy oils as well as the relatively high acidity of the oils all suggest that the majority of the heavy oils once experienced secondary alteration. The fingerprints of the total scanning fluorescence (TSF) of the inner adsorbed hydrocarbons on the reservoir grains and the included hydrocarbons in fluid inclusions are similar to that of the normal oils in the area but are different from the outer adsorbed and reser-voired free oils at present,further indicating that most of the heavy oils are secondary in origin. Analyses of bacteria (microbes) in 7 oil samples indicate that anaerobic and hyperthermophilic Ar-chaeoglobus sp. are the dominant microbes relevant to oil biodegradation,which coincides with the shallow commercial gas reservoirs containing anaerobic bacteria derived gas in the Gaosheng and Leijia teotonic belts. The biodegradation most likely occurs at the water/oil interface,where the forma-tion water is essential for microbe removal and nutrient transportation. We think that biodegradation,water washing and oxidization are interrelated and are the main mechanisms for the formation of the heavy oils. Biodegradation was the predominant process with water washing being a prerequisite,and oxidization acting as a metabolic manifestation. This study provides unique approaches for further investigation of the formation mechanisms of heavy oils in general,and may provide some important insight for the exploration of shallow biogas in the area. | LI SuMei1,2,PANG XiongQi1,2,LIU KeYu3,GAO XianZhi1,2,LI XiaoGuang4,CHEN ZhenYan4 & LIU BaoHong41 State Key Laboratory of Petroleum Resource and Prospecting,China University of Petroleam,Beijing 102249,China 2 Basin and Reservoir Research Center,China University of Petroleum,Beijing 102249,China 3 CSIRO Petroleum,P.O. Box 1130,Bentley WA 6102,Australia 4 Liaohe Oilfield Co. Ltd,PetroChina,Panjin 124010,China | 2008 | Science China Earth Sciences2008，51，S2： | 2 |
| 2 | Nanostructured Catalyst for Fischer-Tropsch Synthesis显示文摘 | Wa Gao Qingshan Zhu Ding Ma | 2018 | Chinese Journal of Chemistry2018，36，9： | 2 |
| 3 | The ethanol ex- tract of Scutellaria baicalensis and it active compounds induce cell cycle arrest and apoptosis including upregulation of p53 and Bax in human lung cancer cells 显示文摘 | Gao J Morgan WA Sanchez-Medina A | 2011 | Toxicol Appl Pharmacol2011，254，3： | 1 |
| 4 | The ethanol extract of Scutellaria baicalensis and the active compounds induce cell cycle arrest and apoptosis including upregulation of p53and Bax in human lung cancer cells显示文摘 | Gao J Morgan WA Sanchez-Medina A | 2011 | Toxicol Appl Pharmacol2011，254，3： | 1 |
| 5 | A physical process for recycling and reusing waste printed circuit boards 显示文摘 | Mou Peng Wa Laiding Xiang Dong Gao Jiangang Duan Guanghong | 2004 | International Symposium on Electronics & the Environment2004，6，5： | 1 |
| 6 | A Sound Quality Objective Evaluation Method Based on Auditory Peripheral Simulation Model显示文摘Based on auditory peripheral simulation model, a new Sound Quality Objective Evaluation (SQOE) method is presented,which can be used to model and analyze the impacts of head, shoulder and other parts of human body on sound wave trans-mission.This method employs the artificial head technique, in which the head related transfer function was taken into account tothe outer ear simulation phase.First, a bionic artificial head was designed as the outer ear model with considering the outersound field in view of theory and physical explanations.Then the auditory peripheral simulation model was built, which mimicsthe physiological functions of the human hearing, simulating the acoustic signal transfer process and conversion mechanismsfrom the free field to the peripheral auditory system.Finally, performance comparison was made between the proposed SQOEmethod and ArtemiS software, and the verifications of subjective and objective related analysis were made.Results show thatthe proposed method was economical, simple, and with good evaluation quality. | Yinhan Gao~1,Jun Xie~2,Jie Liang~1,Xin Chang~3,Baojun Wu~2 1.Experimental Centre of Testing Science,Jilin University,Changchun 130022,P.R.China 2.College of Instrumentation & Electrical Engineering,Jilin University,Changchun 130061,P.R.China 3.Laboratory of Applications and Computations in Electromagnetics and Optics,Department of Electrical Engineering, University of Washington,WA 98195-2500,USA | 2010 | Journal of Bionic Engineering2010，7，2： | 1 |
| 7 | Comparisons of oxygen transport between Tibetan and Han residents atmodemte altitude 显示文摘 | Ri - Li Ge Gao - Wa He Lun Qiu - Hong Chen | 1995 | Wilder Environment1995，6，： | 1 |
| 8 | Centro melanocortin system modulates energy intake and expenditure of obese and lean Zucker rats 显示文摘 | H wa J J Ghibaudi L Gao J | 2001 | American Journal of Physiology2001，281，： | 1 |
| 9 | Change in membrane properties of CA1 pyramidal neurons after transient forebrain ischemia in vivo 显示文摘 | Pulsinelli WA Xu ZC | 1999 | Neuroscience1999，90，： | 1 |
| 10 | Application of statistical experimental design for optimization of downstream process for recovery of pullulan produced by Aureobasidium pullulans HP-2001 显示文摘 | Yi-Joon Kim Sang-Unlee Wa Gao | 2011 | KoreanJ Chem Eng2011，28，7： | 1 |
| 11 | Identification and characterization of lactic acid bacteria isolated from traditional pickles in Sichuan, China显示文摘 | YU Jie GAO Wa QING Manjun | 2012 | Journal of General and Applied Microbiology2012，58，3： | 1 |
| 12 | Analysis of Microbial Composition in Acid Whey for Dairy Fan Making in Yunnan by Conventional Method and 16S rRNA Sequencing显示文摘 | Wenjun Liu Zhihong Sun Jiachao Zhang Wa Gao Weihong Wang Lan Wu Tiansong Sun Wei Chen Xiaoming Liu Heping Zhang | 2009 | Current Microbiology2009，，2： | 1 |
| 13 | Effects of changing spatial scale on the results of statistical analysis with landscape data:A case study显示文摘 | Wa J G Gao W Paul T T | 1997 | Geographic Information Sciences1997，3，： | 1 |
| 14 | Performance evaluation of two degrees of freedom planar parallel robots显示文摘 | Feng Gao Xin-Jun Liu Gruver WA | 1998 | Mechanisms and Machine Theory1998，33，6： | 1 |
| 15 | The ethanol extract of scutellaria baicalensis and the active compounds induce cell cycle arrest and apoptosis including upregulation of p53 and bax in human lung cancer cells显示文摘 | Gao J Morgan WA Sanchez-Medina A | | Toxicol Appl Pharmacol0，254，3： | 1 |
| 16 | Identification and characterization of lactic acid bacteria isolated from traditional pickles in Sichuan,China显示文摘 | YU Jie GAO Wa SUN Zhihong | 2012 | Journal of General and Applied Microbiology2012，58，3： | 1 |
| 17 | The ethanol extract of Scutellaria baicalensis and the ac- tive compounds induce cell cycle arrest and apopto- sis including upregulation of p53 and Bax in human lung cancer cells 显示文摘 | Gao J Morgan WA Sanchez-Medina A | 2011 | Toxicol Appl Pharmacol2011，254，3： | 1 |
| 18 | Changes in membrane properties of CA1 pyramidal neurons after transient forebrain ischemia in vivo显示文摘 | Pulsinelli WA Xu ZC | 1999 | Neuroscience1999，90，： | 1 |
| 19 | Identification of Brucella melitensis and Molecular Cloning of Its BP26 Gene into p ET24a(+) Vector显示文摘Brucella spp. are pathogenic to humans and domestic animal. Nowadays,there is no effective vaccine and control strategy in China. So,it is necessary to research effective vaccines for prevention and treatment of this disease. In order to deal with these,we isolated and identified the type of Brucella in Darhan Muminggan Joint Banner and Siziwang Banner of Inner Mongolia. Totally 26 samples of sheep blood which were positive in serological test,one sample of spleen from aborted and one sample of secretion from birth canal were isolated,and the 16 S r DNA genes of positive samples were sequenced. Phylogenetic analysis proved that there were four isolates similar to B. melitensis. As an important diagnostic antigens of B. melitensis,the BP26 gene was amplified. The BP26 gene was cloned into vector p ET24a( +) and conducted sequence analysis. The BP26 gene was 900 bp,with an open reading frame of 753 bp. The homology of BP26 gene with the vaccine strain M5 was 100%,and that with S2 and A19 vaccine strains was 99. 99%. These finding supported the development of BP26-based specific serodiagnostic test and vaccine for B. melitensis in China. | Feng Ying Wang Yu Zhao Shihua Gao Wa Zhan Shubai Chen Wei | 2015 | Animal Husbandry and Feed Science2015，7，6： | 1 |
| 20 | The ethanol extract of Scutellaria baicalensis and the active compounds induce cell cycle arrest and apoptosis including upregulation of p53 and Bax in human lung cancer cells显示文摘 | Gao J Morgan WA Sanchez-Medina A | 2011 | Toxicol Appl Pharmacol2011，254，3： | 1 |
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