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Effects of Planting Methods and Seed Density on Vegetable Yield and Nutrient Composition of <i>Solanum macrocarpon</i>and <i>Solanum scabrum</i>in Southwest Nigeria

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Food and Nutrition Sciences 2014年第13期5卷 1185-1195页

作者： Mary K. Idowu Durodoluwa J. Oyedele Ojo Kolawole Adekunle Oluwole Olalekan Akinremi bob eilers Department of Crop Production and Protection Faculty of Agriculture Obafemi Awolowo University Ile-Ife Nigeria Department of Soil Science and Land Resources Management Faculty of Agriculture Obafemi Awolowo University Ile-Ife Nigeria Department of Soil Science University of Manitoba Winnipeg Canada

Two field studies were carried out using Solanum macrocarpon and Solanum scabrum to investigate the effects of planting methods and seed density required for optimum biomass yield and nutrient content in southwest Nigeria. Two planting methods (drilling and broadcasting), and two seed densities (4 and 8 table spoon full) were investigated as a 2×2×3 factorial experiment in randomized complete block design and replicated three times. Four seed spoons gave 25.78 kg seeds ha-1 for S. macrocarpon and 20.67 kg·seeds·ha-1 for S. scabrum. Significant highest S. macrocarpon shoots (2.75 kg·m-2) and Ca, K, Fe and Zn contents and S. scabrum (2.95 kg·m-2) and Zn content, were obtained with drilling and four spoons of seeds compared with broadcasting and 8 spoons of seeds. This treatment gave average values for N, P, K, Mg, Ca, Na, Fe, Zn, Mn, Cu, Ca/P and Na/K ratio were 2.79%, 0.03%, 3.37%, 1.64%, 0.02%, 300 mg·kg-1, 100 mg·kg-1, 300 mg·kg-1, 8 mg·kg-1, 1.22 and 0.008 for S. macrocarpon and 2.05%, 0.27%, 5.81%, 3.27%, 2.91%, 0.09%, 280 mg·kg-1, 52.99 mg·kg-1, 359.35 mg·kg-1 and 22.42 mg·kg-1, 11.63 and 0.016 for S. scabrum. It was concluded that planting in drilling made weeding, fertilizer application, irrigation and harvesting more effective rather than by broadcasting, and four spoons of seeds per 9 m-2 produced deep green and broader leaves and balanced nutrient contents than eight spoons of seeds.

关键词： Solanum macrocarpon Solanum scabrum Planting Method Seed Density and Nutrient Contents

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改变人生

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英语沙龙（高中） 2008年第2期 58-59页

作者： bob eilers 鸥丁

也许因为脚步太快,我们无暇顾及;也许因为彼此陌生,我们无法建立信任。在拥挤的人群中,你是渴望给予的人,还是正在期待被别人帮助的人?那么,别再犹豫,请发出你的信号,伸出你的双手,让心和心贴得更近,让一切从此发生变化!本文讲述的就是... 详细信息

也许因为脚步太快,我们无暇顾及;也许因为彼此陌生,我们无法建立信任。在拥挤的人群中,你是渴望给予的人,还是正在期待被别人帮助的人?那么,别再犹豫,请发出你的信号,伸出你的双手,让心和心贴得更近,让一切从此发生变化!本文讲述的就是两位素不相识的人在火车上邂逅后发生的故事,情节虽简单,但却感人至深。

关键词：人生火车站改变故事发生陌生人声音人群宗教信仰男人

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内心的呼唤

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英语知识 2008年第8期 12-13页

作者： bob eilers 隋荣谊大连外国语学院

今天我和以往的15年一样，早上起床后，煮咖啡，洗澡，穿衣服，7点35分准时离开家去火车站，8点30分到达工作岗位。在火车上，我总是选择远离人群的座位，这样我就可以安安静静地看会儿报纸。工作时，我得要没完没了地回答同事和厂商的... 详细信息

今天我和以往的15年一样，早上起床后，煮咖啡，洗澡，穿衣服，7点35分准时离开家去火车站，8点30分到达工作岗位。在火车上，我总是选择远离人群的座位，这样我就可以安安静静地看会儿报纸。工作时，我得要没完没了地回答同事和厂商的问题，接听电话，还要参加那些可怕的会议，所以我最不需要的就是陌生人坐在身边和我聊。

关键词：内心工作岗位火车站陌生人座位

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The Decoupling of Scalar-Modes from a Linearly Perturbed Dust-Filled Bianchi Type-I Model

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Chinese Physics Letters 2014年第1期31卷 21-24页

作者： bob Osano Cosmology and Gravity Group Department of Mathematics and Applied Mathematics University of Cape Town Rondebosch 7701 South Africa

We study linear perturbations about a dust filled Bianchi type-I model with the vorticity set to zero. In comparisonto linear perturbations about the Friedmann-Lemaitre Robertson Walker models, modes of perturbations about the Bianchi type-I models are coupled. We find that the tensor that represents the background shear needs to be degenerate in order for the scalar-mode perturbations to decouple from the rest of the flow.

关键词： Dust

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Thermodynamic and rate variational formulation of models for inhomogeneous gradient materials with microstructure and application to phase field modeling

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Acta Mechanica Sinica 2015年第2期31卷 162-172页

作者： Svyatoslav Gladkov bob Svendsen Material Mechanics RWTH Aachen Aachen Germany Microstructure Physics and Alloy Design Max-Planck-Institut fur Eisenforschung DusseldorfGermany

In this work,thermodynamic models for the energetics and kinetics of inhomogeneous gradient materials with microstructure are formulated in the context of continuum thermodynamics and material *** simplicity,attention is restricted to isothermal *** materials of interest here are characterized by（1） first- and secondorder gradients of the deformation field and（2） a kinematic microstructure field and its gradient（e.g.,in the sense of director,micromorphic or Cosserat microstructure）.Material inhomogeneity takes the form of multiple phases and chemical constituents,modeled here with the help of corresponding phase *** requirements together with the dissipation principle result in the reduced model field and constitutive *** cases of these include the wellknown Cahn-Hilliard and Ginzburg-Landau *** the last part of the work,initial boundary value problems for this class of materials are formulated with the help of rate variational methods.

关键词： Continuum thermodynamics Material inhomogeneity Conservative Non-conservative phase fields

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The Poetry Hoax

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外国文学研究 2005年第2期27卷 12-24页

作者： bob Perelman professor of English at the University of Pennsylvania

This article is concerned with didactic hoaxes that are con structed to discredit their targets; the underlying question is whether a poetry hoax can do this. I compare the Sokal hoax with the Ern Malley hoax: in the first case (USA, 1996), an NYU physicist, Alan Sokal, wrote a bogus article claiming that the laws of physics should be seen as social constru cts; in the second case (Australia, 1943) two poets, James McAuley and Harold Stewart, concocted th e poems of an imaginary modernist, Ern Malley. In both cases the hoaxers realized their aim: Social Text, the magazine that published Sokal’s article, and Angry Penquins, the magazine th at celebrated the poems of Ern Malley, looked foolish. However, while the physics that Sokal used was bogus, what McAuley and Stewart had intentionally tried to write as bad poetry now reads as lively, comic and inventive. The poetry of ″Ern Malley″ now generates more interest than th e genuine poetry of McAuley and Stewart. Thus, while Malley is a hoax-poet, it doesn’t seem that th e hoaxers succeeded in writing hoax-poetry.

关键词：欺骗诗戏剧性独白现代主义同形异音异义词

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Blastoids:a new model for human blastocyst development

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Signal Transduction and Targeted Therapy 2021年第7期6卷 1946-1947页

作者： Heiner Niemann bob Seamark Medizinische Hochschule Hannover(MHH) HannoverGermany Flinders University College of Medicine and Public HealthAdelaideSAAustralia

Recently,two research groups report in Nature1,'2 the ex-vivo production of blastocyst-like structures,called blastoids,that exhibit many of the landmarks in human early development found in viable blastocysts(Fig.1).The formation of a blastocyst is a critical step in early embryo development denoting a key change from the early cleavage stages to ***,the blastocyst,differentiated from the early cleavage stages,is a fluid filled vesicular structure comprised of cells of now,three distinct cell lineages,namely those of the trophoblast,the outer enclosing cell layer,and those of the inner cell mass(ICM)with the hypoblast and epiblast,found in the central fluid filled cavity(the blastocoel).

关键词： filled cavity outer

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An evaluation of the bioavailability and bioaccumulation of selected metalso ccurring in a wetland area on the volcanic island of Guam,Western Pacific Ocean

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Journal of Environmental Sciences 2009年第11期21卷 1547-1551页

作者： bob Wilson Brian Pyatt Gary Denton School of Science and Technology Nottingham Trent University Water and Environmental Research Institute of the Western Pacific University of Guam

This initial research examined the presence, distribution and bioavailability of Cu, Cr, Ni, Mn and Fe in a wetland area of southern Guam. The research sites are within an area covered with saporite, a soil type derived from volcanic deposits on the island. Leaf tissue of Pandanus tectorius was extracted and analysed to determine the bioaccumulation of the target metals. Metal accumulation at sites considered aerobic and anaerobic was investigated together with an attempt to correlate actual accumulation of the target metals in the plant tissue with a recognised bioavailability indicator, in this case, three step sequential extraction scheme. Manganese was found to be accumulated in relatively high concentrations and to a lesser extent Cu was also accumulated. Chromium, Ni and Fe however exhibited very low accumulation factors. Accumulation of Mn in particular was significantly affected by aerobic conditions whereas the converse effect was experienced by Cu. Significant correlation between various steps of a Sequential Extraction Scheme and actual accumulation was not achieved although the degree of aerobic conditions at each site and soil pH did affect concentrations of metals extracted by differing steps of SES. Results obtained suggest that further research in the area should be undertaken using different plant species and tissues.

关键词： Guam bioaccumulation sequential extraction bioavailability accumulation factor heavy metals

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The Future of Plasticizers: Biobased and Oligomeric

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Journal of Renewable Materials 2024年第11期12卷 1857-1861页

作者： bob A.Howell Center for Applications in Polymer Science Department of Chemistry and BiochemistryCentral Michigan UniversityMt.PleasantMI 48859-0001USA

The deficiencies of popular phthalate plasticizers(ready migration from a polymer matrix into which they have been incorporated,flammability,environmental pollution,human health risks)have stimulated efforts to develop new effective,nonmigrating,low-cost,nontoxic *** the main,these have been based on readilyavailable,nontoxic biobased ***,including those prepared from plant oils,have been generated from biomaterials ***,the more numerous and generally more effective have been generated from discrete compounds produced from various *** structural features of effective plasticizers have been *** functionality is required to assure compatibility with a wide range of polymeric materials,including poly(vinyl chloride)(PVC),the most heavily plasticized polymer.A branched structure greatly enhances the effectiveness of compounds used as *** oligomeric structure may strongly limit or prevent migration from a polymer *** oligomers of defined structure derived from the readilyavailable,inexpensive,nontoxic biomonomers,glycerol and adipic acid contain all these features and are excellent *** contain ester functionality,are highly branched,and display a large number of end groups,all of which contribute to their effectiveness as plasticizers.

关键词： Sustainable plasticizers nonmigrating plasticizers nontoxic plasticizers branched plasticizers oligomeric plasticizers poly(ester)plasticizers

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Cost projections for microwave plasma CO production using renewable energy

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Journal of Energy Chemistry 2022年第8期31卷 507-513,I0014页

作者： Remko J.Detz bob van der Zwaan Netherlands Organisation for Applied Scientific Research(TNO) Amsterdam 1043 NTThe Netherlands Faculty of Science(HIMS and IAS) University of AmsterdamAmsterdam 1090 GDThe Netherlands School of Advanced International Studies(SAIS) Johns Hopkins UniversityBologna 40126Italy

Successful deployment of renewable fuel production requires substantial cost reduction along the entire value chain of the underlying manufacturing *** improve their performance,renewable fuel production technologies should follow a cost-reducing learning *** this article,we adopt recent evidence that learning-by-doing is directly influenced by the technology unit size and explore three scenarios for microwave plasma CO_(2)conversion in which the learning rate varies between 10%,15%,and 20%.Our projections reveal that the total investments required to deploy this CO_(2)conversion technology at an exajoule scale decline from 83 down to 23 billion euros under a 10%increase in the value of the learning *** CO_(2) production costs in 2050 amount to 247–346€(2019)/t CO_(2),in which the range is determined by the value of the learning *** under substantial learning until 2050 the levelized CO production cost is unlikely to become competitive with conventional natural gas-based CO_(2) production processes,except when a CO_(2)tax is applied of up to 150€(2019)/t CO_(2).To optimally exploit effects of learning-by-doing,we recommend developing several CO production technologies simultaneously with multiple unit sizes,so as to improve the chance of ultimately selecting the process with the highest learning rate.

关键词： CO_(2)utilization Synthetic fuels Renewable chemicals Learning curves Unit size

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