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Struvite Effects on Rice Growth and Productivity under Flood-Irrigation in the Greenhouse

2018年

作者： (爱尔兰)詹姆斯·乔伊斯

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Agricultural Sciences 2023年第7期14卷 864-877页

作者： Diego Della Lunga Kristofor R. Brye Trenton L. Roberts Chris G. Henry Michelle A. evans-White Daniel j. Lessner Department of Crop Soil and Environmental Sciences University of Arkansas Fayetteville AR USA Department of Biological and Agricultural Engineering University of Arkansas Fayetteville AR USA Department of Biological Sciences University of Arkansas Fayetteville AR USA

In recent years, electrochemical precipitation has gained interest as an alternative method for the synthesis of various minerals, including struvite, from waste streams that can serve as an alternative fertilizer. Studies in lowland cultivations, specifically rice (Oryza sativa) under flood-irrigated conditions, evaluating struvite as a possible alternative phosphorus (P) fertilizer source have been limited. The objective of this study was to evaluate rice response to electrochemically precipitated struvite (ECST) compared to triple superphosphate (TSP), diammonium phosphate (DAP), a chemically precipitated struvite (CPST), and an unamended control (UC), grown under flooded-soil conditions in the greenhouse. Aboveground vegetative dry matter (DM) P concentration was greatest from the UC (0.18%) and was lowest from DAP (0.08%). Root DM Mg concentration was greatest from ECST (0.13%) and was lowest from TSP (0.10%). Grain yield was greatest from DAP (11.2 Mg•ha−1) and was lowest from the UC (4.0 Mg•ha−1). Grain N, P, K, and Mg uptake were consistently greatest from DAP and consistently lowest from the UC. Grain N concentration was 1.1 times greater from CPST than from ECST, while all other measured rice properties did not differ between the struvite-P sources. The many similar rice responses between struvite materials (ECST and CPST) and TSP and DAP demonstrate that struvite, particularly ECST, is a valid alternative fertilizer-P source for rice-production systems. Further studies should evaluate potential environmental implications (i.e., runoff water quality and greenhouse gas emissions) from struvite use that could affect agricultural sustainability.

关键词： Greenhouse Nitrogen Phosphorus Rice Production Struvite

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炭黑的表面反应性

天津橡胶 1994年第2期 42-49页

作者： j.A.Ayala W.M.Hess G.joyce 郭隽奎

1 序言近期的研究成果,更加强调炭黑氢含量在炭黑与弹性体间相互作用方面的重要性。正像二次离子质谱分析法(SINS)和气相色谱—质谱(GC—MS)联合分析技术所表明的那样,炭黑表面的官能度十分复杂。炭黑表面每单位面积上的结合胶量与总... 详细信息

1 序言近期的研究成果,更加强调炭黑氢含量在炭黑与弹性体间相互作用方面的重要性。正像二次离子质谱分析法(SINS)和气相色谱—质谱(GC—MS)联合分析技术所表明的那样,炭黑表面的官能度十分复杂。炭黑表面每单位面积上的结合胶量与总含氢量成正比。

关键词：炭黑表面反应性橡胶

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CT引导的肺活检：活检侧向下侧卧位对气胸和胸导管放置的影响

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国际医学放射学杂志 2019年第5期 611-612页

作者： O.Drumm E.A.joyce C.de Blacam T.Gleeson j.Kavanagh E.McCarthy 王艾博 Department of Radiology St James's Hospital and Trinity College

摘要仰卧位或俯卧位是目前CT引导下肺活检的标准体位;定位活检时,活检侧向下侧卧位可能会降低气胸的发生率。目的探讨CT引导下肺活检术中采取活检侧向下侧卧

关键词：肺活检侧卧位 CT 胸导管

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有机锡化学制品的最新进展

中国有色冶金 1987年第11期 62-64+55页

作者： C. j. evans ,杨部正

有机锡化学制品代表锡消费的一个增长领域,由于这些化合物的多用性,使它们找到进入整个工业范围内的应用门径。其中许多应用,涉及高度发展的技术和有机锡方面的实验室的重大进展。这些实验室遍及世界各地,促使有机锡化合物的发展。

关键词：有机锡实验室有机锡化合物聚氯乙烯稳定剂化学制品

A TEM Study of Microstructures in Chlorine-implanted Silicon

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IMP & HIRFL Annual Report 2002年 59-60页

作者： T.Shibayama,K.Sakaguchi,H.Takahashi,V.M.Vishnyakov,S.E.Donnelly,j.H.evans Laboratory for Ultra-function Materials Center for Advanced Research of Energy Technology Hokkaido University Sapporo japan. Laboratory for Ultra-function Materials Center for Advanced Research of Energy Technology Hokkaido University Sapporo japan. Laboratory for Ultra-function Materials Center for Advanced Research of Energy Technology Hokkaido University Sapporo japan. joule Physics Laboratory School of Sciences University of Salford Greater Manchester UK. joule Physics Laboratory School of Sciences University of Salford Greater Manchester UK. joule Physics Laboratory School of Sciences University of Salford Greater Manchester UK.

The understanding of the behavior of chlorine in silicon is useful for several applications, for example, plasma etching of silicon, a proposed technique for electronic device development. In the present study, specimens of silicon (p-type) were implanted at room temperature with chlorine ions to four successfully increasing doses of 1×1015(40 keV and 80 keV), 5×1015(100 keV), 1×l016(100 keV), and 5×l016(100 keV) Cl+ ions/cm2. All

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MODELS OF ASYNCHRONOUS MRALLEL NONLINEAR MULTISPLITTING RELAXED ITERATIONS

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journal of Computational Mathematics 1995年第4期13卷 369-386页

作者： Z.Z. Bai(Institute of Computational Mathematics and Scientific/Engineering Computing,Chinese Academy of Sciences, Beijing, China)D.R. Wang(Depariment of Mathematics, Shanghai University of Science and Technology,Shanghai, China)D.j. evans(Parallel Algorit

In the sense of the nonlinear multisplitting and based on the principle of suffi-ciently using the delayed information, we propose models of asynchronous parallelaccelerated overrelaxation iteration methods for solving large scale system of non-linear equations. Under proper conditions, we set up the local convergence theoriesof these new method models.

关键词： NoC Wang MODELS OF ASYNCHRONOUS MRALLEL NONLINEAR MULTISPLITTING RELAXED ITERATIONS EN DCR

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Substantial subpial cortical demyelination in progressive multiple sclerosis: have we underestimated the extent of cortical pathology?

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Neuroimmunology and Neuroinflammation 2020年第1期7卷 51-67页

作者： Lauren Griffiths Richard Reynolds Rhian evans Ryan j.Bevan Mark I.Rees Djordje Gveric james W.Neal Owain W.Howell Institute of Life Sciences Swansea University Medical SchoolSwansea UniversitySwansea SA28PPUK Department of Brain Sciences Faculty of MedicineImperial College LondonLondon W53EHUK Faculty of Medicine and Health University of SydneySydneyNew South Wales NSW 2006Australia

Aim: Multiple sclerosis (MS) is an inflammatory demyelinating and neurodegenerative disease. Much of the complex symptomatology relates to pathology outside the classic white matter plaque, whereby lesions of the cortical grey matter, which are difficult to resolve by conventional clinical imaging, are in part predictive of outcome. We investigated the extent of grey matter pathology in whole coronal macrosections to reassess the contribution of cortical pathology to total demyelinating lesion area in progressive MS. Methods: Twenty-two cases of progressive MS were prepared as whole bi-hemispheric macrosections for histology, immunostaining and quantitative analysis of lesion number and relative area, leptomeningeal inflammation and microglial/macrophage activation. Results: Cortical grey matter demyelination was seen in all cases, which was more extensive than in white and deep grey matter (hippocampus, thalamus and basal ganglia) and accounted for 0.8%-60.2% of the entire measurable cortical ribbon. The pattern of cortical grey matter demyelination was predominantly subpial (mean 90.9%, range 60%-100%, of total cortical grey matter lesion area) and cases with the largest areas of subpial cortical lesions had more and larger deep grey matter lesions, greater numbers of activated microglia/macrophages, both in lesions as well as in normal cortical grey matter, together with elevated leptomeningeal inflammation and lymphoid-like ;structures. White matter lesion area was unchanged when compared with the progressive MS cases with little subpial cortical demyelination. Conclusion: Analysis of whole coronal macrosections reveals cortical demyelination is more extensive than reported by conventional histological methods. Cases of progressive MS with substantial subpial cortical demyelination that is independent of underlying white matter lesion area support the implications that these lesions may in-part arise through different pathogenetic mechanisms. Biomarkers and/or i

关键词： Leptomeninges B cell follicle microglia activation normal appearing grey matter

Evidence of a conservative gait strategy in athletes with a history of concussions

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journal of Sport and Health Science 2016年第4期5卷 417-423页

作者： Thomas A.Buckley Srikant Vallabhajosula jessie R.Oldham Barry A.Munkasy Kelsey M.evans David A.Krazeise Caroline j.Ketcham Eric E.Hall Department of Kinesiology and Applied Physiology University of Delaware Department of Physical Therapy Education Elon University Department of Health and Kinesiology Georgia Southern University Department of Intercollegiate Athletics Stetson University Department of Exercise Science Elon University

Background：A history of 3 or more concussions is frequently associated with numerous short-and long-term *** in postural control are a known acute consequence of concussion;however,limited evidence exists on the effects of multiple concussions on *** purpose of this study was to assess gait stepping characteristics in collegiate aged student-athletes based on concussion ***：There were 63 participants divided into 3 even groups based on concussion history：≥3 concussions,1–2 concussions,and 0 *** participants completed 10 trials of gait on a 4.9 m instrumented *** dependent variables of interest included both gait stepping characteristics（step velocity,length,and width,double support time,and the percentage of the gait cycle in stance） and coefficien of variability（CoV） measures（step length,time,and width）.The gait stepping characteristics were compared firs with a MANOVA with follow-up 1-way ANOVAs and Tukey post hoc tests as *** Co V measures were compared with 1-way ANOVAs and Tukey post hoc ***：There were main effects for group for step velocity,length,width,and double support ***,the 0 concussion group displayed typical healthy young gait parameters and performed significant y better than either concussion *** 0 concussion group had a significant y greater step length Co V,but there were no differences in the step time or width Co ***：This findin provides evidence of subtle impairments in postural control during gait among individuals with prior history of concussion which could be an early indicator of future neurological deficiencies The limited difference in the variability measures is consistent with prior static stance studies and could suggest the individuals constrain their motor systems to reduce *** together,these findi gs suggest a conservative gait strategy which is adopted by individuals with a history of concussions.

关键词： Balance Brain injury Gait performance Locomotion Mild traumatic Postural control Postural stability Variability

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聚氨酯预制隔热管的生产技术和用于集中供热管道高质量的聚氨酯泡沫系统

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聚氨酯预制隔热管的生产技术和用于集中供热管道高质量的聚氨酯泡...