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| 1 | 基于人工神经网络的注水开发油藏产量预测显示文摘针对传统注水开发油藏产量预测方法存在的问题,提出了基于人工神经网络的预测模型,阐述了模拟工作流程,并进行了算例分析。提出了基于流体物理学和测量数据随机组合的特征提取方法,以提高模型的预测效果。优选贝叶斯正则化算法作为模型的训练算法,该算法一般耗时较长,但能对产油量、产气量、产水量等嘈杂数据集进行良好泛化。通过计算均方误差及决定系数、绘制误差分布直方图及模拟数据-验证数据交会图等方式进行模型评价。用90%的历史数据训练、验证、测试目标模型结构,然后用其余10%数据进行盲测。研究表明,提出的流体产量预测模型决定系数超过0.9,模拟结果与实际数据吻合程度高,输入信息少,计算成本低。 | NEGASH Berihun Mamo YAW Atta Dennis | 2020 | 石油勘探与开发2020，47，2： | 15 |
| 2 | Vegetation structural characteristics and topographic factors in the remnant moist Afromontane forest of Wondo Genet, south central Ethiopia显示文摘For forest ecosystem management to be effective, knowledge of the horizontal and vertical structural diversity of a forest is essential. The moist Afromontane highlands of Wondo Genet in south-central Ethiopia present an opportunity to restore and rehabilitate and enhance the ecosystem services to be obtained from this forest sustainably. We focused on the forest structural characteristics to better understand the current forest conditions to assist in the sustainable management of this resource. A total of 75 (20 m × 20 m) quadrats were sampled and diameter at breast height (DBH)≥2 cm and stem height≥2 m were measured. Species identity and abundance, elevation, slope, and aspect were recorded for each plot. Structural characteristics were computed for each plot. Relationship of topographic factors with vegetation characteristics was conducted using R-Software. A total of 72 woody species was recorded. Whereas, the overall diameter distribution shows an inverted J-shaped curve, the basal area followed a bell-shaped pattern. Five types of population structures are revealed. The mean tree density and basal area was 397.3 stems ha-1 and 31.4 m2·ha-1 , respectively. Only 2.8% of the tree species have densities of≥25 stems ha-1 and the percentage distribution of trees show 56.2% in the DBH class 2-10 cm, indicating that the forest is dominated by medium-sized trees. Celtis africana (8.81 m2·ha-1 ) and Pouteria adolfi-friedericii (5.13 m2·ha-1 ) make the highest contribution to the basal area and species importance value index. The families/species with the highest importance value index are Ulmaceae, Fabacea and Sapotaceae. Species abundance (r2 = 0.32, p <0.001) and species richness (r2 =0.50, p <0.001) are positively related with tree density. Tree density is negatively related with elevation (r2 = -0.36, p <0.001), slope (r2 =-0.15, p <0.001) and aspect (r2 = -0.07, p <0.05). While basal area is negatively related with elevation (r2 =-0.14, p <0.001), it has a positive relationship with tree density (r2 =0.28, p <0.001 and species richness (r2 =0.098). Species with poor population structure should be assisted by restoration tasks and further anthropogenic disturbance such as illegal logging and fuel wood extraction should be restricted. | Mamo Kebede Markku Kanninen Eshetu Yirdaw Mulugeta Lemenih | 2013 | Journal of Forestry Research2013，24，3： | 6 |
| 3 | Longevity of Juniperus procera seed lots under different storage conditions: implications for ex situ conservation in seed banks显示文摘Juniperus procera Endl. is economically important timber species, but its populations are extremely small and fragmented in its natural habitat, thus, calling for immediate ex situ conservation. Here we examined the effects of seed sources and storage temperature on the longevity of Juniperus procera seed lots through collection and preservation of seeds in seed banks. Seeds were collected from nine sites across the species natural distribution in Ethiopia and stored in four warehouses: modern cold room (5℃), mud house (15℃), concrete block house (17℃ or corrugated iron house (20℃) for 42 months. Every three months, a random sample of stored seeds were drawn and tested for germination. A highly significant variation (p < 0.01) in germination of stored seeds was observed among different storage environments, seed lots, and duration of storage. Over the storage period, seeds stored in the cold room had the highest mean percentage germination, followed by the mud house, corrugated house and blocket house. The cold room (41%) and the mud house (38%) maintained the same level of germination as the intitial germination of the seedlotds (42%). The variation in longevity of stored seeds was significnatly correlated with the initial germination of seed lots (r > 0.80; p < 0.01). Cold storage also resulted in enhancement of germination through its stratification effect that terminated the non-deepphysiological dormancy of juniper seeds. In conclusion, seed lots with good initial germination can be effectively stored in cold room (5℃) up to four years. In the absence of modern cold stores, mud houses can be used as a good alternative to store seeds at local level. | Negash Mamo Diriba Nigusie Mulualem Tigabu Demel Teketay Miftah Fekadu | 2011 | Journal of Forestry Research2011，22，3： | 5 |
| 4 | 电子鼻同步检测花生霉菌及霉菌毒素显示文摘利用电子鼻技术,建立了花生受不同霉菌感染后的霉变程度及毒素含量的同步快速检测方法。花生经辐照灭菌后接种5种常见霉菌(3种产毒菌株、2种非产毒菌株),于培养箱(26℃、相对湿度80%)中培养6 d。每天取出不同霉菌污染的样品采集电子鼻信号,同时测定其菌落总数和黄曲霉毒素B_(1)(aflatoxin B_(1),AFB_(1))含量,建立不同霉菌感染下霉变程度及毒素含量定性判别模型。主成分分析结果显示不同霉菌污染下有一定的聚类趋势,且污染样品位于可接受样品的上方;利用线性判别分析和偏最小二乘判别分析整体准确率达到80%以上,其中根据产毒菌株和非产毒菌株分类正确率高于95.7%,根据AFB_(1)含量分类正确率90%以上,根据菌落总数分类正确率较低。所有模型中假阴性均低于17%。因此,电子鼻技术对不同霉菌感染下的霉变程度及毒素含量的测定具有可行性。未来研究应继续扩大样品数量,补充受其他更多霉菌侵染及不同品种的花生样品,同时考虑实际情况,以提高模型的准确性和稳定性。 | 王蓓 沈飞 何学明 蒋雪松 袁建 方勇 胡秋辉 邱伟芬 MAMO Firew Tafesse | 2022 | 食品科学2022，43，12： | 5 |
| 5 | 基于GC-IMS对充氮储藏粳稻风味特性影响研究显示文摘本研究采用气相离子迁移谱等技术(GC-IMS)探究粳稻充氮储藏期间挥发气体成分(VOCs)的变化趋势,调节粳稻谷含水量为13.5%,结合脂肪酸值、脂肪酶、过氧化物酶和过氧化氢酶的变化规律,探究粳稻充氮气调的储藏效果以及对其储藏稳定性的影响。研究结果表明,粳稻储藏期间醇类、醛类为主要挥发性成分,其中1-戊醛、壬醛和辛醛直接参与了脂质代谢过程。充氮气调对部分直链醇(1-丁醇、1-戊醇、1-己醇)和长碳链线性醛(辛醛、壬醛)的抑制效果显著。通过构建脂肪含量变化动态预测模型,表明低温高浓度氮气储藏对脂肪酸值的抑制效果为63.25%,脂肪酶活性的稳定性可提升193.69%,过氧化氢酶稳定性提升了10.76%。充氮气调储藏可以通过抑制粳稻呼吸作用,降低脂质代谢关键酶的活性,降低了亚油酸代谢速率,改善了脂质代谢挥发性组分的生成,有效减缓了粳稻陈化劣变。 | 丁超 常乐 郭啸天 殷月 陶婷婷 倪小颖 赵思琪 丁海臻 刘纪伟 张婷婷 Firew Tafesse Mamo 刘强 | 2023 | 中国粮油学报2023，38，1： | 2 |
| 6 | 基于气相离子迁移谱技术的稻谷中玉米象快速定量检测分析显示文摘本研究基于稻谷中玉米象挥发性成分特异性,利用气相离子迁移谱技术快速采集玉米象成虫、原样稻谷以及虫粮混合物的顶空气体信息,提取特征气味组分信号后形成气味指纹图谱,并尝试构建了稻谷中玉米象污染的定量线性模型。研究结果表明,玉米象污染稻谷中共计检出37种挥发性化合物,其中醇类12种,醛类10种,酮类5种;不同玉米象数量样品GC-IMS信号强度存在显著差异,以戊醛、3-戊酮、苯乙烯、2-戊酮为特征的挥发性组分对应信号强度与玉米象密度呈典型线性关系,对应的R^(2)在0.986~0.988之间,可以作为玉米象污染稻谷的重要标识物质。研究结果证实了利用GC-IMS可以实现不同密度下稻谷中玉米象成虫数量的快速识别,将推动基于气味信息的快速检测技术在粮食产后储藏品质控制和安全评价方面的应用与推广。 | 刘强 倪小颖 丁海臻 Firew Tafesse Mamo 周曰春 赵思琪 胡秋辉 丁超 | 2022 | 中国粮油学报2022，37，6： | 2 |
| 7 | Technical outcomes of sentinel-lymph-node resection and conventional axillary-lymph-node dissection in patients with clinically node-negative breast cancer: results from the NSABP B-32 randomised phase III trial显示文摘 | David N Krag Stewart J Anderson Thomas B Julian Ann M Brown Seth P Harlow Takamaru Ashikaga Donald L Weaver Barbara J Miller Lynne M Jalovec Thomas G Frazier R Dirk Noyes André Robidoux Hugh MC Scarth Denise M Mammolito David R McCready Eleftherios P Mamo | 2007 | Lancet Oncology2007，，10： | 2 |
| 8 | The rate of visual loss in Behcet's disease显示文摘 | Mamo FG | 1970 | Arch Ophthalmol1970，84，： | 1 |
| 9 | Antiviral activity of C-alkylated purine nucleosides obtained by cross-coupling with tetraalkyltin reagents显示文摘 | Van Aerschot A Petros Mamos Piet A | 1993 | J Med Chem1993，36，： | 1 |
| 10 | Sexually transmitted infections in newly arrived refugees:Is routine screening for neisseria gonorrheae and chlamydia trachomatis infection indicated显示文摘 | Stauffer WM Painter J Mamo B | | 0，，02： | 1 |
| 11 | Training and Development Activities and Career Success among Filipino Managerial Women显示文摘 | Ronald J Burke Louie A Divinagracia Emias Mamo | 1998 | Career Development International1998，，3： | 1 |
| 12 | Motor neurone disease presenting with raised serum Troponin T显示文摘 | Mamo Jonathan P | 2015 | Scottish medical journal2015，60，2： | 1 |
| 13 | Quantitative evaluation and se- lection of reference genes in mouse oocytes and embryos cultured in vivo and in vitro 显示文摘 | Mamo S Gal AB Bodo S | 2007 | BMC Dev Biol2007，7，： | 1 |
| 14 | An integrated genomic approach identifies ARIDIA as a candidate tumor-suppressor gene in breast cancer显示文摘 | Mamo A Cavallone L Tuzmen S | 2012 | Oncogene2012，31，16： | 1 |
| 15 | A primary healtheare approach to the management of chronic disease in Ethiopia : an example for other countries显示文摘 | Mamo Y Seid E Adams S | 2007 | Clin Med2007，7，3： | 1 |
| 16 | Novel rotor position extraction based on carrier frequency component method(CFCM) using two reference frames for IPM drives显示文摘 | Mamo M Ide K Sawamura M | 2005 | IEEE Transactions on Industrial Electronics2005，52，2： | 1 |
| 17 | Prilocaine or mepivacaine for combined sciatic-femoral nerve block in patient sreceiving elective knee arthroscopy显示文摘 | Marsan A Kirdemir P Mamo D | 2004 | Minerva Anestesiol2004，70，11： | 1 |
| 18 | Detachment rate,soil erodibility,and soil strength as influenced by living plant roots显示文摘 | Mamo M Bubenzene G D | 2001 | FieldStudy Transactions of the ASAE2001，44，： | 1 |
| 19 | Detachment rate, soil erodibility, and soil strength as influenced by living plant roots part I: Laboratory study显示文摘 | MAMO M BUBENZER G D | 2001 | Transactions of the American Society of Agricultural Engineers2001，44，5： | 1 |
| 20 | Fusion of carbohy- drate binding modules from Thermotoga neapolitana with a fam- ily 10 xylanase from Bacillus halodurans S7 显示文摘 | Mamo G Hatti - kaul R Mattiasson B | 2007 | Extremo- philes2007，11，： | 1 |
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