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分子育种提高甜菜抗病性(续完)

中国甜菜糖业 2008年第2期 23-26页

作者：张春来徐德昌姜孝成周岩张春香 Nigel W．Scott malcolm c．elliott Adrian Slater Norman Borlaug Institute for Plant Science Research De Montfort University Leicester UK 哈尔滨工业大学糖业研究院黑龙江哈尔滨150090 中国农业科学院甜菜研究所、黑龙江大学农作物研究院黑龙江哈尔滨150080 河南科技学院生物工程系河南新乡453003

通过国内外在分子育种水平上对甜菜多种病害抗病性研究的分析和总结,综述了国内外分子育种方面提高甜菜抗病性的研究进展。

关键词：甜菜分子育种提高抗病性

Statistics of the Nicocr medium-entropy alloy:Novel aspects of an old puzzle

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npj computational Materials 2020年第1期6卷 610-615页

作者： Zongrui Pei Rui Li Michael c.Gao G.malcolm Stocks Oak Ridge National Laboratory Oak RidgeTN 37831USA University of Tennessee KnoxvilleTN 37996USA National Energy Technology Laboratory AlbanyOR 97321USA Leidos Research Support Team 626 Cochrans Mill RoadP.O.Box 10940PittsburghPA 15236USA

We study the K-state phenomenon in the Nicocr medium-entropy alloy using first-principles techniques jointly with the efficient Wang–Landau Monte carlo and simulated annealing *** theoretical results successfully explain the existence of the peak around 940 K in the experimental specific heat curve that characterizes the K-state phenomenon and give a fine picture of its atomic *** peak is caused by the maximum change of the local configurations characterized by the short-range-order(SRO)parameters at that temperature.

关键词： alloy temperature entropy

Limits of drag augmentation at spacecraft end-of-mission and a mitigation strategy

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Astrodynamics 2021年第2期5卷 109-120页

作者： Emma Kerr malcolm Macdonald University of Strathclyde GlasgowG11XJUK

An increasing number of objects are being launched into low-Earth ***,to avoid the possibility of future in-orbit collisions space object removal techniques are receiving *** one of the most developed techniques,drag augmentation is increasingly being considered as an option for end-of-mission removal of objects from low-Earth *** paper highlights a common misconception around drag augmentation:although it can be used to reduce de-orbit time,when used inappropriately it can increase the volume swept by an object and,thus,increase the occurrence risk of collision with another space *** ignoring this increased risk of collisions could leave spacecraft operators,and consequently their responsible state party,open to liability *** investigating the volume swept and de-orbit lifetime,a strategy of delayed deployment is proposed as a compromise between reducing volume swept and time to ***,this increases system complexity and,likely,cost.

关键词： drag augmentation volume area-time-product space debris liability Learned Hand formula calculus of negligence

ZnO nanofluids-A potential antibacterial agent

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Progress in Natural Science:Materials International 2008年第8期18卷 939-944页

作者： malcolm Povey David York Procter Department of Food Science University of Leeds Leeds LS2 9JT UK Procter and Gamble Newcastle Technical centre Newcastle-upon-Tyne NE12 9TS UK

In this work, ZnO nanofluids were produced by a medium mill with a pH value of about 7.2 and characterized by Nano-Sizer and SEM. After milling, ZnO nanofluids were formed with an average particle size of 198.4 nm. The ZnO nanofluids used for testing were stored for different periods (1-, 90- and 120-day) and kept in different conditions (under the light and in the dark). The antibacterial activities of these ZnO nanofluids were evaluated by estimating the reduction ratio of the bacteria treated with ZnO. The results showed that the ZnO nanofluid stored for 120 days under the light had the best antibacterial behavior against Escherichia coli DH5a. SEM images suggest that an interaction between the ZnO particles and the E. coli bacteria cells caused by electrostatic forces might be a mechanism.

关键词： Antibacterial Nanofluids ZnO E. coli Photocatalysis

INVERSION OF THE BREMMER SERIES

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Journal of computational Mathematics 2017年第5期35卷 586-599页

作者： Hala A.H. Shehadeh Alison E. malcolm John c. Schotland Department of Mathematics and Statistics James Madison University Harrisonburg VA 22801 Earth Sciences Department Memorial University of Newfoundland St John's Canada Department of Mathematics and Department of Physics University of Michigan Ann Arbor MI 48109 USA

We consider the inverse backscattering problem for scalar waves in one dimension. We analyze the convergence of the inverse Bremmer series in this context and study its use in numerical simulations.

关键词： Inverse scattering.

Historical imaginaries, historic urban branding, and the local state in china: rejuvenation discourse, manufactured heritage and simulacrascapes

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Built Heritage 2023年第1期7卷 76-87页

作者： Andrew malcolm Law School of Architecture Planning and LandscapeNewcastle UniversityNewcastleUK

This intervention examines the extant literature on historical imaginaries and historic urban branding in *** suggests that while research in this field has increasingly moved away from an economic(or an implicit neo-Marxist)model,there is still a lack of research on the role of broader cultural and state led discourses of nationalism in the construction of historic urban imaginaries and historic urban branding within chinese *** unpacking one nationalistic discourse a-narrative of rejuvenation-this article argues that more needs to be done to examine the role of these themes in the construction of historical imaginaries at the level of the local state(including related state networks of developers,retailers,tourist officials,town planners,architects,and designers).It is suggested that an analysis of these discourses and imaginaries is important if we are:1)to appreciate the role of these themes in the construction and/or the reconfiguration of existing or emerging historic brands within chinese cities;2)to comprehend the construction of'authorised heritage discourses,(AHDs)practices and materialities at the level of the local state;3)to understand the politics of the past(including the uses of history,memory,nostalgia,and heritage)at the level of the local state;4)to be aware of the way in which these themes inform the preservation,conservation,and/or the demolition of heritage space at the level of the local state;5)to recognise the manufacture of'heritage'or simulacrascapes within chinese cities.

关键词： rejuvenation historical urban imaginaries historical urban branding built heritage simulacrascapes

Evolution of Microalloyed Linepipe Steels With Particular Emphasis on the “Near Stoichiometry” Low carbon,0.10 Percent Niobium “HTP” concept

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Journal of Iron and Steel Research International 2011年第S1期18卷 652-657页

作者： Gray J.malcolm Microalloyed Steel Institute Inc. 5100 Westheimer Ste 540HoustonTX 77056 USA

Microalloyed linepipe steels were first introduced in 1959 at strength levels around 52-60 ksi [1] [2].The steels were generally strengthened by niobium or vanadium used *** strengths levels increased to X-70 in the early 1970’s niobium and vanadium were used in combination and controlled rolling was introduced on a broad *** strengths decrease tolerance for impurities and non-metallic inclusions which required improved steelmaking ***,carbon,and nitrogen were reduced and continuous casting was increasingly applied which required improved ladle refining and deoxidation ***-molybdenum steels were introduced by IPScO in 1972 [3] and by Italsider in 1974 [4].Steels with higher niobium contents were also introduced in the early 1970’s but available steelmaking technologies limited the use of optimum niobium to carbon ratios,*** approaching *** the steels benefited from the effect of niobium in retarding austenite recrystallization at relatively high rolling temperatures and they developed attractive combinations of strength and toughness in old manufacturing facilities using simple (relaxed) rolling *** in the price of molybdenum and vanadium in the past decade and expanded application of API Grade X-80 linepipe,have led to more widespread use of niobium contents up to 0.11 percent,in combination with 0.02-0.03 percent carbon (near stoichiometry) thus maximizing the effects of solute niobium during rolling,in lowering transformation temperature,and thereby reducing reliance on other alloying,often expensive,*** history of these developments will be presented and applications of the concept will be summarized.

关键词： HTP Low carbon,0.10 Percent Niobium Near Stoichiometry Evolution of Microalloyed Linepipe Steels With Particular Emphasis on the concept

Review on solar sail technology

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Astrodynamics 2019年第2期3卷 93-125页

作者： Shengping Gong malcolm Macdonald School of Aerospace Engineering Tsinghua UniversityBeijing100084China Department of Mechanical&Aerospace Engineering University of StrathclydeGlasgouScotland

This paper reviews solar sail trajectory design and dynamics,attitude control,and structural *** the area of orbital dynamics,methods relevant to transfer trajectory design and non-Keplerian orbit generation are *** the area of attitude control,di erent control strategies,including utilisation of solar radiation pressure and conventional actuators,are ***,the methods of modelling structural dynamics during and after deployment are discussed,before considering possible future trends in developing of solar sailing missions.

关键词： solar sail orbit attitude structure

Ultrasound particle sizing:A review

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Particuology 2013年第2期11卷 135-147页

作者： malcolm J.W.Povey School of Food Science and Nutrition The University of Leeds

Ultrasound spectrometry is one of very few methods that can size particles over the range 10 nm to I mm for optically opaque, undiluted materials. It has in-line, non-invasive capabilities which make it a serious contender for use in industrial process monitoring, with the potential for 100% inspection. In aqueous systems, it is more sensitive to nanoparticles than to particles in the micrometre range upwards because the scattering power varies as the inverse square of particle diameter, making it suitable for the detec- tion of nanoparticles in concentrated, mixed systems. Future development of ultrasound spectrometers suitable for widespread laboratory and industrial use depends on meeting the challenges of complex data interpretation and the need for considerable know how. In this review we provide a brief account of ultrasound propagation and scattering theory which underlies the ultrasound spectrometer, describe several types of spectrometer and demonstrate its successful use in the characterization of colloidal silica, whole milk and protein solutions.

关键词： Ultrasound Particle size Measurement instrumentation Review Acoustics Particle size distribution (PSD) Nanoparticles colloids Ultrasound spectrometry