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Haemovigilance and experience of the serlous hazards of transfusion(SHOT)scheme in the United Kingdom(UK)

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中国输血杂志 2001年第S1期14卷 206-210页

作者： EMLove HJomes Williamson H cohen A todd K Soldan J Revill D R Norfolk J Barbara c L J Atterbury DAsher On be half of the SHOT Steering Group On be half of the SHOT Steering GroupOn be half of the SHOT Steering GroupOn be half of the SHOT Steering GroupOn be half of the SHOT Steering GroupOn be half of the SHOT Steering GroupOn be half of the SHOT Stee

Phosphate Sorption in Water by Several cationic Polymer Flocculants

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Journal of Agricultural chemistry and Environment 2016年第1期5卷 45-51页

作者： Timothy S. Goebel Robert J. Lascano todd A. Davis cropping Systems Research Laboratory USDA-ARS Lubbock TX USA Department of chemistry United States Air Force Academy Colorado Springs CO USA

Although inorganic phosphate is an essential plant nutrient, elevated levels in surface waters lead to adverse effects in the environment. These effects are attributed to runoff from rain or irrigation events that may cause the sorbed phosphate to be transported from the application sites and to move into neighboring watersheds. Increased phosphate concentration in watersheds may lead to a variety of environmental problems including increased algal blooms, bacterial contamination, and in some cases eutrophication. To overcome these effects, polymer flocculants have been shown to reduce the phosphate concentration in water by removing suspended solids and thereby removing the phosphate sorbed to the solids. The purpose of this study is to determine the amount, if any, of phosphate removed by several commercial polymers. The polymers chosen include the polyacrylamides Magnifloc 494c, Magnifloc 985N and Poly (diallyldimethyl ammonium chloride) (Poly (DADMAc)). Using these polymers, it is discovered that the positive charge density of the polymers affects the amount of phosphate removed from solution with Poly (DADMAc) (having 100% positive charge density) removing 40% of the phosphate from a solution containing 10 ppm phosphate.

关键词： Polymer Flocculants Phosphate Sorption Polyacrylamides Poly (DADMAc) Smectite

Lipid Production by <i>Rhodotorula glutinis</i>from Pulp and Paper Wastewater for Biodiesel Production

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Journal of Sustainable Bioenergy Systems 2015年第3期5卷 114-125页

作者： Marta Amirsadeghi Sara Shields-Menard W. todd French Rafael Hernandez Dave c. Swalm School of chemical Engineering Mississippi State University Starkville Mississippi USA Department of Biological Science Mississippi State University Starkville Mississippi USA college of Engineering University of Louisiana at Lafayette Lafayette Louisiana USA

This study investigated the potential of oleaginous yeast Rhodotorula glutinis utilizing pulp and paper wastewater effluents as cultivation media for the sustainable production of microbial lipids as biodiesel feedstock. R. glutinis is oleaginous yeast, which has the ability to produce significant quantities of intercellular lipids in the form of triacylglycerols. Yeast lipids are a promising potential feedstock for biodiesel production due to similar fatty acid composition to plant oils. The effect of various carbon sources on biomass production, lipid accumulation, substrate utilization, and fatty acid composition using R. glutinis in the pulp and paper wastewater media was studied. The pulp and paper wastewater was supplemented with glucose, xylose, and glycerol as carbon sources under nitrogen-limited conditions. The maximum lipid productions of 1.3 - 2.9 g•L–1, which corresponded to the intracellular lipid contents of 8% - 15% cell dry weight (cDW), were obtained under various carbon substrates. A kinetic study of the batch fermentation was performed in a 3 L aerobic batch fermenter to describe the cell growth, lipid accumulation, and substrate utilization process, and the kinetic parameter was estimated. The fatty acid profile of oleaginous yeast was rich in palmitic, oleic, and linoleic acids and comparable to vegetable oils. Thus, the results of this study indicated that pulp and paper wastewater could be used to produce lipids as biodiesel feedstock.

关键词： Biofuels Lipid Production Biodiesel Feedstock Rhodotorula glutinis Pulp and Paper Wastewater

含高钙和维生素D的强化奶能有效提高健康的绝经后的中国女性体内的维生素D水平并减少骨吸收

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中国骨质疏松杂志 2013年第2期19卷 107-113页

作者： Marlena c Kruger Pengcheng Ha Joanne M todd Barbara Kuhn-Sherlock Linda M Schollum Jiliang Ma George Qin Edith Lau 新西兰北帕默斯顿梅西大学中国北京基础研究和临床中心新西兰奥克兰恒天然品牌有限公司新西兰北帕默斯顿恒天然研究中心北京友谊医院香港卫生和医疗研究中心基础研究和临床中心

目的钙摄入水平低以及体内维生素D不足是导致亚洲女性罹患骨质疏松的危险因素。此项研究的目的是评估高钙维生素D强化牛奶(HcM)对健康的中国绝经后妇女的体内维生素D状态和骨吸收标志物进行干预的影响。方法本试验对象为55岁以上,绝经至... 详细信息

目的钙摄入水平低以及体内维生素D不足是导致亚洲女性罹患骨质疏松的危险因素。此项研究的目的是评估高钙维生素D强化牛奶(HcM)对健康的中国绝经后妇女的体内维生素D状态和骨吸收标志物进行干预的影响。方法本试验对象为55岁以上,绝经至少5年的女性。共有124名女性进行了总体健康状况和骨密度检查筛选。63名女性被随机分为对照组和试验组,试验组在12w内每日饮用两次高钙/维生素D强化奶(含900 mg钙、96 mg镁、2.4 mg锌和6.4μg维生素D)。2组分别在试验开始、试验2 w、8 w和12 w时测量血矿物质、25(OH)维生素D3和Ⅰ型胶原c端肽(cTX)水平。结果对照组女性平均年龄为63±4.6岁,高钙强化奶(HcM)组女性平均年龄为62±3.8岁。所测得的每日钙摄入量的基线值为HcM组260～482 mg,对照组为252～692 mg。12 w后HcM组的平均身体质量指数(BMI)显著降低(PcM组的血25(OH)维生素D3水平显著提高(33.13～39.49 nmol/L),而对照组则维持不变(29.27～28.21 nmol/L)。HcM组的血cTX水平在0 w和2 w之间下降了25%,并保持不变直至第12w。从第2w开始HcM组和对照组相比血cTX水平就出现了显著差异(PcM),在2至4w内能显著提高中国绝经妇女体内维生素D水平,并减少骨吸收破坏。如果长期持续地饮用含高钙和维生素D的强化奶(HcM),能减少骨吸收和骨量丢失的风险,从而减少患骨质疏松和由此引起骨折的风险。

关键词：中国绝经后的女性含钙强化奶骨标志物cTX 维生素D水平 25(OH)维生素D3 中国

The genome sequence, full-length infectious cDNA clone, and mapping of viral dsRNA accumulation determinant of hypovirus cHV1-EP721

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The genome sequence, full-length infectious cDNA clone, and ...

使用USB Type-c电缆快速充电的一大问题

第二届中国青年学者微生物遗传学学术研讨会

作者： todd B．Parsley Donald L．Nuss center for Biosystems Research 5115 Plant Sciences BuildingUniversity of Maryland Biotechnology Institute College Park Maryland 20742USA center for Biosystems Research 5115 Plant Sciences Building University of Maryland Biotechnology Institute College Park Maryland 20742 USA

cryphonectria parasitica strain EP721 is infected with a hypovirus of the cHV1 species and exhibits typical hypovirulence-associated traits such as reduced pigmentation and reduced asexual sporulation. However, the accumulation of the viral dsRNA in this hypovirus-infected c. parastiica strain is atypically low. We now report the complete nucleotide sequence and construction of a full-length infectious cDNA clone for the hypovirus cHV1-EP721 isolated from EP721. The genome sequence of cHV1-EP721 was determined to be 12,724 bp in length and to share extensive homology with two other hypoviruses, cHV1-Euro7 and cHV1-EP713, with an average of 99% and 90% identities at nucleotide level and 99% and 92% identities at amino acids level, respectively. cHV1-EP721 was successfully introduced into virus-free fungal host strain EP721(-v) by transfection with transcripts derived from a full-length viral cDNA. The transfected strain had a phenotype indistinguishable from EP721 and the accumulation of cHV1-EP721 dsRNA in the transfectant was lower than those tranfected by cHV1-Euro7 and cHV1-EP713 transcripts. Through construction of chimeric viruses by domain swapping using infectious cDNA clones of hypoviruses cHV1-EP721, cHV1-EP713 and cHV1-Euro7, the determinant for the low level of viral dsRNA accumulation in cHV1-EP721 was mapped to the second of two cHV1-EP721 open reading frames, ORFB. Further refined swapping of domains within ORFB identified a 2.5 kb- coding region between p48 and the polymerase of cHV1-EP721 to be responsible for the low viral dsRNA accumulation. Evidence is also provided that low hypovirus transmission rates through conidial spores correlates with low viral RNA accumulation.

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电子产品世界 2019年第8期26卷 33-34页

作者： todd Phillips Littelfuse公司电子业务部

符合USB-PD和USBType-c规格的快速充电器和电缆可支持高达100W的充电功率,因此,设计者需要考虑与电缆到设备连接处的电源和温度管理相关的安全问题。紧凑型的PolySwitch setP数字温度指示器是为保护USB-c电缆免受过温状况影响而开发的... 详细信息

符合USB-PD和USBType-c规格的快速充电器和电缆可支持高达100W的充电功率,因此,设计者需要考虑与电缆到设备连接处的电源和温度管理相关的安全问题。紧凑型的PolySwitch setP数字温度指示器是为保护USB-c电缆免受过温状况影响而开发的最新器件之一。

关键词： USBType-c USB-PD 充电

对悬浮固体侵入造成的地层伤害进行数学模拟的新方法

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国外油田工程 1998年第8期14卷 1-6页

作者： T.Kumar A.c.todd 来松清苏燕翎河南油田勘察设计研究院

关于固体悬浮物侵入造成的地层伤害,已有一些研究人员做了大量研究工作,并在文献上发表了一些模型的建立方法,特别是高效介质理论和二维或三维毛细管网络中的渗透理论的应用.本文介绍了一个以颗粒通过多孔介质的物料平衡为基础的新的数... 详细信息

关于固体悬浮物侵入造成的地层伤害,已有一些研究人员做了大量研究工作,并在文献上发表了一些模型的建立方法,特别是高效介质理论和二维或三维毛细管网络中的渗透理论的应用.本文介绍了一个以颗粒通过多孔介质的物料平衡为基础的新的数字模型,对线性模型和辐射模型均做了介绍.尽管导出的差分方程是以定积分形式表示的,但模型对不同参数，如流体中颗粒的浓度、注入速率以及固体颗粒的密度等,与侵入深度和侵入时间的关系的适用性有着明显的不同.模拟并计算结果与在带有多个测压口的岩心夹持器里进行的岩心实验数据吻合较好.实验中采用了长度为80mm的砂质岩心.辐射模型可用于模拟注水井里的地层伤害,而线性模型可用于工业水净化及油田注水处理的过滤系统.

关键词：悬浮固体地层伤害数学模拟油田

对悬浮固体侵入造成的地层伤害进行数学模拟的新方法

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石油石化节能 1998年第8期 1-6页

作者： T.Kumar A．c．todd 来松清苏燕翎河南油田勘察设计研究院

关键词：悬浮固体地层伤害数学模拟油田注水岩心孔隙度

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低蛋白大麦的选育

麦类作物学报 1985年第6期 25-26页

作者： todd E.Piper ,Donald c.Rasmusson ,徐绍英

1977-80年期间,美国的明尼苏达、北达科他和南达科他州,几乎有三分之一的六棱酿造用大麦的籽粒蛋白水平超过了要求的最高（13.5%）限度,从而降低了该区大麦的价格.因此,人们对培育低蛋白的大麦品种发生了兴趣.1967年以来,尽管有些学者... 详细信息

1977-80年期间,美国的明尼苏达、北达科他和南达科他州,几乎有三分之一的六棱酿造用大麦的籽粒蛋白水平超过了要求的最高（13.5%）限度,从而降低了该区大麦的价格.因此,人们对培育低蛋白的大麦品种发生了兴趣.1967年以来,尽管有些学者对早代籽粒蛋白选择进行过研究,但终未得出一致的结果.本研究是在将F5代选系单行种植下,以求获得F5世代对低籽粒蛋白质含量的选择有效性方面更多的信息;同时评价了籽粒蛋白质含量与籽粒产量和籽粒饱满度的相互关系.

关键词：选系低蛋白质变幅亲本差异大麦麦类作物籽粒产量高蛋白质含量现实遗传力低蛋白