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国际医学放射学杂志 2010年第3期 268-268页

作者：王微微 L. Milot M. Guindi S. Gallinger C.A. Moulton K.K. brock L.A. Dawson Joint Department of Medical imaging University Health Network and Mount Sinai Hospital University of Toronto 610 University Ave

摘要目的探讨结直肠癌肝转移瘤复杂的内部MR信号强度(Si)模式与显微镜下的组织特性的相关性。材料与方法本研究获得学

关键词：肝转移瘤结直肠癌组织类型 MRi 相关性

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An Assessment of the Potential Use of Forest Residues for the Production of Bio-Oils in the Urban-Rural interface of Louisiana

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Open Journal of Forestry 2022年第4期12卷 479-502页

作者： Yaw A. Twumasi Zhu H. Ning John B. Namwamba Edmund C. Merem Abena B. Asare-Ansah Harriet B. Yeboah Matilda Anokye Diana B. Frimpong Priscilla M. Loh Julia Atayi Judith Oppong Cynthia C. Ogbu Rechael N. D. Armah Caroline Y. Apraku Opeyemi i. Oladigbolu Joyce McClendon-Peralta Department of Urban Forestry and Natural Resources Southern University and A&M College Baton Rouge USA Department of Urban and Regional Planning Jackson State University Jackson USA Department of Geography and Tourism Studies Brock University St. Catharines Canada

Louisiana is endowed with forest resources. Forest wastes generated after thinning, land clearing, and logging operations, such as wood debris, tree trimmings, barks, sawdust, wood chips, and black liquor, among others, can serve as potential fuels for energy production in Louisiana. This paper aims to evaluate the potential annual volumes of forest wastes established on detailed and existing data on the forest structure in the rural-urban interface of Louisiana. it also demonstrates the state’s prospects of utilizing forest wastes to produce bio-oils. The data specific to the study was deduced from secondary data sources to obtain the annual average total residue production in Louisiana and estimate the number of logging residues available for procurement for bioenergy production. The total biomass production per year was modeled versus years by polynomial regression curve fitting using Microsoft Excel. Results of the model show that the cumulative annual total biomass production for 2025 and 2030 in Louisiana is projected to be 80000000 Bone Dry Ton (BDT) and 16000000 (BDT) respectively. The findings of the study depict that Louisiana has a massive biomass supply from forest wastes for bioenergy production. Thus, the potential for Louisiana to become an influential player in the production of bio-based products from forest residues is evident. The author recommends that future research can use Geographic information Systems (GiS) to create maps displaying the potential locations and utilization centers of forest wastes for bioenergy production in the state.

关键词： Bioenergy Production Bio-Oils Polynomial Regression Bio-Products Forest Residues Logging Residues Wood Wastes Louisiana

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Bioenergy Crops as a Promising Alternative to Fossil Fuels in Louisiana: A Geographic information System (GiS) Perspective

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Journal of Sustainable Bioenergy Systems 2022年第4期12卷 57-81页

作者： Yaw A. Twumasi Zhu H. Ning John B. Namwamba Abena B. Asare-Ansah Edmund C. Merem Harriet B. Yeboah Judith Oppong Matilda Anokye Diana B. Frimpong Priscilla M. Loh Julia Atayi Rechael N. D. Armah Caroline Y. Apraku Opeyemi i. Oladigbolu Cynthia C. Ogbu Leah W. Njeri Joyce McClendon-Peralta Department of Urban Forestry and Natural Resources Southern University and A&M College Baton Rouge USA Department of Urban and Regional Planning Jackson State University Jackson USA Department of Geography and Tourism Studies Brock University St. Catharines Canada

Rising greenhouse gas emissions are causing climate change, and the world’s focus has shifted to the need to reduce our reliance on fossil fuels. There has been a rise in the published literature on the utilization of crops for bioenergy production in Louisiana. However, very few scholarly documents have used Geographic information Systems (GiS) to map the distribution of potential bioenergy crops in Louisiana. This study seeks to fill the void by evaluating the potential of bioenergy crops in Louisiana for energy production using GiS. Given this objective, the agricultural census data for 1999, 2009, 2019, and 2020 obtained from the U.S. Department of Agriculture were used in the analysis. The quantities of various crops produced in the state were loaded into an attribute table and joined to a shapefile using ArcGiS software. The symbology tool’s graduated option was used to create five maps representing each of the bioenergy crops in Louisiana. The findings of the GiS analysis show that some of the parishes, such as Franklin produced the most bushels of corn (13,795,416), iberia produced the most tons of sugarcane (1,697,980), East Carroll produced the most bushels of soybean (8,237,991), Tensas harvested the most bales of cotton (80,898) and Avoyelles produced the most bushels of sorghum (630,694). The abundance and availability of crops as raw materials for energy production will translate into lower prices in terms of energy use, making bioenergy crops a promising alternative to fossil fuels. in addition, gasoline price data from 1993-2022 was obtained from U.S. Energy information Administration. A regression model for the average annual gasoline price over the years was constructed. The results show that the average annual gasoline price variation with respect to years is statistically significant (p 0.05). This suggests that gasoline prices will generally rise despite a price drop over the years. The paper concludes by outlining policy recommendations in the

关键词： Bioenergy Crops Biomass Fossil Fuel Gasoline Geographic information Sys-tem (GiS) Regression Analysis Louisiana

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单细胞转录组测序分析揭示人类植入前胚胎父母源效应

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科学新闻 2020年第2期 66-66页

作者：蒋太交徐凤萍林戈冷丽智孙继亚黄晋荣 Fei Gong Ling Yang Shuoping Zhang Xuye Yuan Fang Fang Xun Xu Yonglun Luo Lars Bolund brock A.Peters Guangxiu Lu Taijiao Jiang Fengping Xu Ge Lin 中国医学科学院深圳华大生命科学研究院华大基因学院中南大学

文章简介人类胚胎发育起始于精卵结合,受精卵经过多次卵裂发育为由内细胞团和滋养层细胞组成的囊胚。体外受精胚胎的囊胚形成率约为40～50%,大部分胚胎阻滞在4-8细胞阶段。由于对精子和卵子基因组在胚胎早期发育过程中的作用知之甚少,... 详细信息

文章简介人类胚胎发育起始于精卵结合,受精卵经过多次卵裂发育为由内细胞团和滋养层细胞组成的囊胚。体外受精胚胎的囊胚形成率约为40～50%,大部分胚胎阻滞在4-8细胞阶段。由于对精子和卵子基因组在胚胎早期发育过程中的作用知之甚少,目前还很难对阻滞胚胎进行精子或卵子因素的溯源分析。为解决这一临床难题,林戈课题

关键词：植入前胚胎测序分析溯源分析源效应单细胞

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Analysis of Precipitation Trends and Prediction in Selected Cities in the Southeast Louisiana

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Atmospheric and Climate Sciences 2022年第4期12卷 698-727页

作者： Yaw A. Twumasi John B. Namwamba Zhu H. Ning Edmund C. Merem Priscilla M. Loh Abena B. Asare-Ansah Jacob B. Annan Ronald Okwemba Harriet B. Yeboah Caroline Y. Apraku Janeth Mjema Rechael N. D. Armah Matilda Anokye Lucinda A. Kangwana Judith Oppong Julia Atayi Cynthia C. Ogbu Opeyemi i. Oladigbolu Diana B. Frimpong Joyce McClendon-Peralta Department of Urban Forestry and Natural Resources Southern University and A&M College Baton Rouge LA USA Department of Urban and Regional Planning Jackson State University Jackson MS USA Department of Geography and Tourism Studies Brock University St. Catharines Canada

The impacts of climate change are being felt in Louisiana, in the form of changing weather patterns that have resulted in changes in floods, hurricanes, tornadoes frequencies of occurrence, and magnitudes, among others resulting in, flooding. The variabilities in rainfall in a drainage basin affect water availability and sustainability. This study analyzed the precipitation data of Southeastern Louisiana, United States, for the period 1990 to 2020. Data used in the study was from, Donaldsonville, Galliano, Lafourche, Gonzales, Ascension, Morgan, New Orleans, Audubon, Plaquemine, and Ponchatoula, Tangipahoa, weather stations. These stations were selected because the differences between each of their highest and lowest average annual rainfall data were greater than 20 inches. To investigate climate patterns and trends for the given weather stations in Southeastern Louisiana, precipitation data were analyzed on annual time scales using data collected from the World Bank Group Climate Change Knowledge Portal for Development Practitioners and Policy Makers and the Applied Climate information System (ACiS) of the National Weather Service Prediction Center. The data were further aggregated using annual average blocks of 4 years, and linear and polynomial regression was performed to establish trends. The highest and lowest average annual rainfall data for Donaldsonville, Galliano, Lafourche, Gonzales, Ascension, Morgan, New Orleans, Audubon, Plaquemine, and Ponchatoula, Tangipahoa, weather stations were, 75 and 48, 71 and 44, 73.5 and 52.7, 75 and 46.4, 72 and 41.3, 94 and 55.3, Ponchatoula, and 78.6 and 44, respectively. Plaquemine recorded the highest average annual average rainfall while New Orleans, Audubon station recorded the lowest. The projection of the precipitation in 2030 has been carried out to inform scientists and stakeholders about the approximate quantity of rainfall expected and enable them to make their expected impacts on agriculture, economy, etc. The pr

关键词： Precipitation Linear and Polynomial Regression Extrapolating Models Southeastern Louisiana

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