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表面活性剂对致密油藏自吸原油采收率的影响——以华庆长8油层为例

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表面活性剂对致密油藏自吸原油采收率的影响——以华庆长8油层为例

作者：哈立德（khalid Waheed）西安石油大学

学位级别：硕士

鄂尔多斯盆地致密储层油气资源丰富,勘探开发潜力巨大。然而这类储层常规注水效果差。研究表明表面活性剂对提高致密油藏自吸和自吸能力有明显的作用,是提高该油藏水驱采收率的有效途径之一。鄂尔多斯盆地致密砂岩长8储层在HQ地区的渗... 详细信息

鄂尔多斯盆地致密储层油气资源丰富,勘探开发潜力巨大。然而这类储层常规注水效果差。研究表明表面活性剂对提高致密油藏自吸和自吸能力有明显的作用,是提高该油藏水驱采收率的有效途径之一。鄂尔多斯盆地致密砂岩长8储层在HQ地区的渗透率小于0.3md,并且储层岩石以缝隙发育的细砂岩为主,一般超过10%,且储层岩石孔隙结构复杂。通过对鄂尔多斯盆HQ地区长8油藏的岩石学特征和孔隙结构的分析,本文优选并评价可选择的表面活性剂配方,并通过岩心自吸实验和核磁共振(NMR)实验,研究了不同表面活性剂对自吸过程和自吸效率的影响。以此为基础,探讨了该技术方法在该地区的应用和前景。结果表明:(1)表面活性剂能增加储层岩石的吸水能力,通过改变润湿性和油水界面张力使油流易于流动。(2)在研究区储层中,选择的三个配方均显著高了地层水的自吸能力,最佳配方为阴离子与非离子复配配方。(3)配方2#具有最低的界面张力和较好的自吸性。自吸效率可达37%～64%。(4)核磁共振实验表明,地层水可以进入较小的微孔,岩心的自吸能力增加。(5)对研究区储层,可以采用表面活性剂“吞吐法”提高原油采收率。本文研究结果为研究区筛选和提高原油采收率提供了依据。

关键词：长8储层鄂尔多斯盆地致密油提高采收率表面活性剂驱替

Quantitative Trait Loci Underlying Seed Sugars Content in “md96-5722” by “Spencer” Recombinant Inbred Line Population of Soybean

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Food and Nutrition Sciences 2015年第11期6卷 964-973页

作者： Masum Akond Shiming Liu Stella K. Kantartzi khalid Meksem Nacer Bellaloui David A. Lightfoot My Abdelmajid Kassem Plant Genomics and Biotechnology Laboratory Department of Biological Sciences Fayetteville State University Fayetteville NC USA Department of Plant Soil and Agricultural Systems Southern Illinois University Carbondale IL USA Crop Genetics Research Unit USDA-ARS Stoneville MS USA School of Arts and Sciences American University of Ras Al Khaimah Ras Al Khaimah United Arab Emirates

Sucrose, raffinose, and stachyose are important soluble sugars in soybean [Glycine max (L.) Merr.] seeds. Seed sucrose is a desirable trait for taste and flavor. Raffinose and stachyose are undesirable in diets of monogastric animals, acting as anti-nutritional factors that cause flatulence and abdominal discomfort. Therefore, reducing raffinose and stachyose biosynthesis is considered as a key quality trait goal in soy food and feed industries. The objective of this study was to identify genomic regions containing quantitative trait loci (QTL) controlling sucrose, raffinose, and stachyose in a set of 92 F5:7 recombinant inbred lines (RILs) derived from a cross between the lines “md96-5722” and “Spencer” by using 5376 Single Nucleotide Polymorphism (SNP) markers from the Illumina Infinium SoySNP6K BeadChip array. Fourteen significant QTL were identified and mapped on eight different linkage groups (LGs) and chromosomes (Chr). Three QTL for seed sucrose content were identified on LGs N (Chr3), K (Chr9), and E (Chr15). Seven QTL were identified for raffinose content on LGs D1a (Chr1), N (Chr3), C2 (Chr6), K (Chr9), B2 (Chr14), and J (Chr16). Four QTL for stachyose content were identified on LG D1a (Chr1), C2 (Chr6), H (Chr12), and B2 (Chr14). Selection for beneficial alleles of these QTLs could facilitate breeding strategies to develop soybean lines with higher concentrations of sucrose and lower levels of raffinose and stachyose.

关键词： Soybean Seed Nutrition Sucrose Raffinose Stachyose Sugars md96-5722 Spencer QTL RIL

Identification of Quantitative Trait Loci (QTL) Underlying Protein, Oil, and Five Major Fatty Acids’ Contents in Soybean

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American Journal of Plant Sciences 2014年第1期5卷 158-167页

作者： Masum Akond Shiming Liu Melanie Boney Stella K. Kantartzi khalid Meksem Nacer Bellaloui David A. Lightfoot My Abdelmajid Kassem Department of Plant Soil and Agricultural Systems Southern Il-linois University Carbondale USA Plant Genomics and Biotechnology Lab Department of Biologi-cal Sciences Fayetteville State University Fayetteville USA United States Department of Agriculture-Agricultural Research Service Crop Genetics Research Unit Stoneville USA

Improved seed composition in soybean [Glycine max (L.) Merr.] for protein and oil quality is one of the major goals of soybean breeders. A group of genes that act as quantitative traits with their effects can alter protein, oil, palmitic, stearic, oleic, linoleic, and linolenic acids percentage in soybean seeds. The objective of this study was to identify Quantitative Trait Loci (QTL) controlling protein, oil, and fatty acids content in a set of F5:8 RILs derived from a cross between lines, ‘md 96-5722’ and ‘Spencer’ using 5376 Single Nucleotide Polymorphism (SNP) markers from the Illumina Infinium SoySNP6K BeadChip array. QTL analysis used WinQTL Cart 2.5 software for composite interval mapping (CIM). Identified, were;one protein content QTL on linkage group (LG-) B2 or chromosome (Chr_) 14;11 QTL associated with oil content on six linkage groups LG-N (Chr_3), LG-A1 (Chr_5), LG-K (Chr_9), LG-F (Chr_13), LG-B2 (Chr_14), and LG-J (Chr_16);and sixteen QTL for five major fatty acids (palmitic, stearic, oleic, linoleic, and linolenic acids) on LG-N (Chr_3), LG-F (Chr_13), LG-B2 (Chr_14), LG-E (Chr_15), LG-J (Chr_16), and LG-G (Chr_18). The SNP markers closely linked to the QTL reported here will be useful for development of cultivars with altered oil and fatty acid compositions in soybean breeding programs.

关键词： Soybean SNP Linkage Map QTL RIL Oil Major Fatty Acids md96-5722 Spencer

Mapping of QTL Associated with Seed Amino Acids Content in “md96-5722” by “Spencer” RIL Population of Soybean Using SNP Markers

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Food and Nutrition Sciences 2015年第11期6卷 974-984页

作者： Laila Khandaker Masum Akond Shiming Liu Stella K. Kantartzi khalid Meksem Nacer Bellaloui David A. Lightfoot My Abdelmajid Kassem Plant Genomics and Biotechnology Laboratory Department of Biological Sciences Fayetteville State University Fayetteville NC USA Department of Plant Soil and Agricultural Systems Southern Illinois University Carbondale IL USA Crop Genetics Research Unit Agricultural Research Service USDA Stoneville MS USA The School of Arts and Sciences American University of Ras Al Khaimah Ras Al Khiamah United Arab Emirates

Limited information is available on the genetic analysis of amino acid composition in soybean seeds. Previously, quantitative trait loci (QTLs) for seed isoflavones, protein, oil, and fatty acids were identified in the “md96-5722” by “Spencer” and other RIL populations. There were wide variations for these seed constituents among the RIL populations. Therefore, the objective of this study was to identify QTLs controlling different amino acids content in soybean seeds. To achieve this objective, ninety-two F5:7 recombinant inbred lines (RIL), developed from a cross of md96-5722 and Spencer, using a total 5376 Single Nucleotide Polymorphism (SNPs) markers, were used. The RILs were genotyped by using 537 polymorphic, reliably segregating SNP markers, developed from the Illumina Infinium SoySNP6K BeadChip array. A total of 13 QTLs were identified with three QTLs for threonine on the linkage group (LG) A1, C2, and B2. Two QTLs were identified for each of the amino acids proline on LG D1a and B2, serine on LG A1 and C2, tryptophan on LG K and G, and cysteine on LG A1 and K. One QTL was identified for arginine on LG N and histidine on LG J. The new QTLs findings for seed amino acid will facilitate the development of soybean cultivars with higher protein and amino acid quality to help meet the industry and consumer needs.

关键词： Soybean Amino Acids SNP QTLs Seed Composition Constituents

Potential Solution of Power Flow Constraints of Bangladesh Power System

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Journal of Energy and Power Engineering 2012年第8期6卷 1315-1319页

作者： Nahid-Al-Masood Samsuzzaman Rupu Shaikh Mostafa Fahad khalid Imtiaz Saad md. Quamrul Ahsan Department of Electrical and Electronic Engineering Bangladesh University of Engineering and Technology Dhaka 1000Bangladesh

This paper presents a potential solution of power flow constraints of BPS (Bangladesh power system) using VAR (volt ampere reactive) compensation. VAR compensation is defined as the management of reactive power to improve the performance of ac power systems. The concept of VAR compensation embraces a wide and diverse field of both system and customer problems, especially related with power quality issues, since most of power quality problems can be attenuated or solved with an adequate control of reactive power. VAR compensation in transmission systems also improves the stability of the ac system by increasing the maximum active power that can be transmitted. It also helps to maintain a substantially flat voltage profile at all levels of power transmission. BPS is currently facing problems in few 132 grid points where the thermal limits of transmission are often exceeded. BPS is also foreseeing problem in transmitting additional power from the new generating units in Sylhet to Dhaka zone. This paper investigates the potential solution to these transmission problems.

关键词：电力系统孟加拉国功率流无功补偿无功功率质量问题传输系统 BPS

Strategies to Improve CT Dose Optimization for Hybrid PET/CT Imaging

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Open Journal of Medical Imaging 2021年第2期11卷 48-57页

作者： Abdel-Baset Bani Yaseen Yasmin md Radzi Hussain M. Almohiy Akshay Kohli Mohammad Rawashdeh Faculty of Applied Medical Sciences Jordan University of Science and Technology Irbid Jordan School of Physics Universiti Sains Malaysia Penang Malaysia Department of Radiological Sciences College of Applied Medical Sciences King Khalid University Abha Saudi Arabia Department of Radiology John Hunter Hospital New Lambton Heights Australia

Background: To evaluate whether current dose reduction strategies for the CT component of hybrid Positron Emission Tomography—Computed Tomography (PET/CT) systems could reduce patient dose with maintaining adequate image quality for PET/CT studies. Materials and Methods: Literature survey was initially based on the selection of keywords and years of publication to identify potentially relevant articles, then the further search was conducted on the authors and references from these articles. The abstract of each article was first appraised to decide whether the content was relevant to this research question. The articles were classified into five groups: studies on dosimetry, studies on radiation-induced diseases, studies on dose reduction methods for CT-based attenuation correction (CTAC), studies on dose reduction methods for CT localization, and studies on reducing the need for a full-dose diagnostic CT in PET/CT imaging. 58 peer-reviewed articles were selected and appraised and 29 articles were used to compose this literature review. Results: The published nuclear medicine and medical physics literature were reviewed. CT dose contributed 47% - 81% of the total effective dose of a standard PET/CT study and was associated with radiation-induced diseases. The dose reduction techniques were extracted and divided into three categories: reducing the CT dose for attenuation correction (AC) and localization, selectively localizing CT use, and reducing the need for a full-dose diagnostic CT. Conclusion: Three strategies have been demonstrated, with high potential for reducing patient dose while maintaining an adequate CT image quality, used for CTCA localization and diagnosis, respectively.

关键词： CT Scan Radiation Dose Hybrid Imaging PET Systems CTAC

Toxicity of selected insecticides against nymph of whitefly （Bemisia tabaci Gennadius）

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Journal of Agricultural Science and Technology 2009年第4期3卷 32-39页

作者： Hazmi Awang Damit Fauziah Ismail Low Seng Mook Siti Noor Hajjar md Latip Mohd Rasdi Zaini Fairuz khalid Kamaruzaman Jusoff Faculty of Applied Science Universiti Teknologi MARA Selangor 40450 Malaysia Faculty of Applied Science Universiti Teknologi MARA Pahang 40450 Selangor 40450 Malaysia Department of Forest Production Faculty of Forestry Universiti Putra Malaysia Selangor 43400 Malaysia

Natural contamination of human hands with enteric parasites in Indian Subcontinent

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World Journal of Clinical Infectious Diseases 2013年第2期3卷 13-19页

作者： M khalid Ijaz Kaisar A Talukder Mohammad Aslam Rashidul Haque Sandipan Ganguly Ishrat J Azmi md Shawkat Hossain Avik Kumar Mukherjee Dibyendu Raj Ijaz Ahmed Jabeen Kamal Joseph R Rubino Alam Nur-E-Kamal Reckitt Benckiser LLC One Philips ParkwayMontvaleNJ 07645United States International Centre for Diarrheal Disease Research BangladeshDhaka-1000Bangla-desh Division of Parasitology National Institute of Cholera and Enteric DiseasesKolkata-700010India Department of Biology Medgar Evers College of the City University of New YorkBrooklynNew YorkNY 11225United States

AIM: To investigate the prevalence of enteric parasite contamination on hands and the potential role naturally contaminated hands may have in their transmission. METHODS: Prior to initiating the survey, the protocol was reviewed and approved by respective Institutional Review Boards of each survey site(Dhaka, Bangladesh and Kolkata, India). Both stool and corresponding hand wash samples collected, were analyzed for the presence of enteric parasitic ova/(oo)cysts employing conventional microscopy coupled with permanent staining techniques. Additionally molecular approachessuch as polymerase chain reaction(PCR) of enteric parasites recovered from both stool and corresponding hand wash samples, were also used to further confirm their identity. RESULTS: A total of 972 stool samples were collected from both sites surveyed(300 volunteers from Kolkata, India and 672 from Dhaka, Bangladesh). Parasitic analysis revealed, 113(38%) from Kolkata, India and 267(40%) of stool samples from Dhaka, Bangladesh were positive for parasitic ova/(oo)cysts. When the corresponding hand wash samples were analyzed, 43(14%) stool-positive volunteers in Kolkata, India and 47(7%) in Dhaka, Bangladesh were positive for enteric parasitic ova/(oo)cysts. Ascaris lumbricoides(A. lumbricoides) ova and Giardia lamblia(G. lamblia) cysts predominated in hands wash samples from both sites surveyed(from India, A. lumbricoides ova, 53%; G. lamblia cysts 31% and from Bangladesh, A. lumbricoides ova, 47%; G. lamblia cysts 19%). Genotypic analysis of enteric parasitic ova/(oo)cysts obtained from both stool and corresponding hand wash samples taken from the same person were found to be identical. CONCLUSION: These results suggest a possible role of hands contaminated with enteric parasites' ova/(oo)cysts in the transmission of these parasites highlighting another role of hand hygiene/proper hand washing in reducing the disease burden in low socioeconomic communities.

关键词： Enteric parasites Ascaris lumbricoides Giardia lamblia Natural contamination of hands

Winds of Change in Saudi English Textbooks： A Cultural Perspective

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Sino-US English Teaching 2015年第7期12卷 524-538页

作者： Syed md Golam Faruk King khalid University Abha Saudi Arabia