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Geo-Spatial Information Science 2018年第4期21卷 288-293页

作者： Steven e.Greco Department of Human ecology University of CaliforniaDavisCAUSA

Conceptually,the theory and implementation of“map projection”in geographic information system(GIS)technology is difficult to comprehend for most introductory students and novice *** this difficulty is the concept of a“map projection file”that defines map projection parameters of geo-spatial *** problem of the“missing projection file”appears ubiquitous for all users,especially in practice where data is widely *** common problem is inadver.ent misapplication of the“Define Projection”tool that can result in a GIS dataset with an incor.ectly defined map projection *** education should provide more guidance in differentiating the concepts of map projection versus projection files by increasing understanding and minimizing common errors.A novel pedagogical device is introduced in this paper:the seven possible states of GIS data with respect to map projection and *** seven possible states are:(1)a projected coordinate system(PCS)that is cor.ectly defined,(2)a PCS that is incor.ectly defined,(3)a PCS that is undefined,(4)a geographic coordinate system(GCS)that is cor.ectly defined,(5)a GCS that is incor.ectly defined,(6)a GCS that is undefined,and(7)a *** created automated troubleshooting tools to determine a missing map projection file are discussed.

关键词： GIS education map projection error map projection file define projection

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全球背景中的城市:学术史概要

国外城市规划 2006年第6期21卷 112-120页

作者： Diane e.davis 张艳美国麻省理工学院建筑与规划学院同济大学建筑与城市规划学院城市规划系

学者们研究全球背景中的城市几乎与研究城市的时间一样长（Weber．1927：Pirenne．1936）。在早期有关城市的作品中．”全球城市”的概念未必使用过．但是国际金融市场联系与贸易关系却是存在的。在许多早期作品中．城市的物质、社会和... 详细信息

学者们研究全球背景中的城市几乎与研究城市的时间一样长（Weber．1927：Pirenne．1936）。在早期有关城市的作品中．”全球城市”的概念未必使用过．但是国际金融市场联系与贸易关系却是存在的。在许多早期作品中．城市的物质、社会和经济变迁与国家和国际的政治环境——从封建专制主义秩序的灭亡（weber．1958）到现代民族国家的兴起（Tilly．1975；1990）——以及现代性的社会关系（Durkheim．1993：Simmel,1950）的出现紧密相连．

关键词：全球城市学术史社会关系金融市场民族国家政治环境国际作品

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Maternal environment effects on Phenolic Defenses in <i>Abutilon theophrasti</i>Seeds

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American Journal of Plant Sciences 2013年第5期4卷 1127-1133页

作者： Brian J. Schutte Sam e. Wortman John L. Lindquist Adam S. davis Department of Agronomy and Horticulture University of Nebraska Lincoln USA Department of Crop Sciences University of Illinois Urbana USA Department of entomology Plant Pathology & Weed Science New Mexico State University Las Cruces USA United States Department of Agriculture-Agricultural research Service (USDA-ArS) Global Change and Photosynthesis Research Unit Urbana USA.

A class of phenolic compounds, ortho-dihydroxyphenols (hereafter “o-DHP”), has been implicated with seed survival. Based on expectations of the growth-differentiation balance hypothesis, we predicted that seed o-DHP concentration exhibits a curvilinear response to increasing resour.e availability in the maternal environment, with maximum o-DHP occurring at moderate resour.e levels. To test this hypothesis, Abutilon theophrasti seeds were produced under field conditions at two locations. each location included twelve maternal environments established through factorial combinations of soil compost (+/-), species assemblage (A. theophrasti with and without maize), and soil nitrogen fertilizer (0, 0.5× or 1× local recommendations for maize). resour.e availability with respect to A. theophrasti growth was summarized by above-ground biomass at seed har.est (maternal biomass). results indicated that seed o-DHP concentrations increased then decreased in response to increasing maternal biomass. This relationship was modeled with a unimodal function specific to location (Location 1, y = 1.18 + 0.03xe-0.02x, pseudo-r2 = 0.59, p = 0.003;Location 2, y = 1.40 + 0.006xe-0.005x;pseudo-r2 = 0.34, p = 0.05). Seed protein concentrations remained constant across maternal biomass levels. Because inherent vulnerability to predation and decay is considered a consequence of chemical protection relative to nutritional offering, our results suggest that A. theophrasti seed susceptibility to lethal attack is influenced by resour.e levels in the maternal environment. More broadly, our results suggest that the growth-differentiation balance hypothesis can be extended to maternal effects on seed phenolics.

关键词： environmental Maternal effect Growth-Differentiation Balance Hypothesis ortho-Dihydroxyphenols Seed Defense Seed Protein

Characterization of fungal pathogens associated with grapevine trunk diseases in Arkansas and Missouri

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Fungal Diversity 2012年第1期52卷 169-189页

作者： Jose ramon Ur.ez-Tor.es Francesca Peduto r.K.Str.egler K.e.Ur.ea-romero J.C.rupe r.D.Cartwright W.D.Gubler Pacific Agri-Food research Centre 4200 Highway 97Box 5000SummerlandBC V0H1Z0Canada Department of Plant Pathology University of California DavisDavisCA 95616USA Institute for Continental Climate Viticulture&enology University of MissouriColumbiaMO 65211USA

Grapevine trunk diseases are a major concern to the wine-and table-grape industr.es worldwide,limiting both vineyard longevity and *** sur.eys conducted throughout the grape-growing regions of Arkansas and Missouri revealed the presence of thr.e economically important grapevine trunk diseases including,Botryosphaeria canker.eutypa dieback and *** studies along with multi-gene phylogenetical analyses confir.ed the identification of 15 different fungal taxa associated with different vascular *** include Botryosphaeria dothidea,Diatrypella sp.,Diplodia seriata,Dothiorella americana,eutypa lata,eutypella vitis,Lasiodiplodia missouriana,Lasiodiplodia viticola,Neofusicoccum ribis,Neofusicoccum vitifusifor.e,Pestalotiopsis sp.,Pestalotiopsis uvicola,Phaeomoniella chlamydospora,Phomopsis viticola,Schyzophyllum commune,and Togninia *** of these represent new records on grapevines in Arkansas and *** americana,*** and *** are described as new species,and both *** and *** are first repor.ed as grapevine pathogens in North ***’s postulates confir.ed the pathogenicity of all fungal species except *** in the interspecific hybrids Vignoles,Chambourcin,Norton,and *** spp.,***,and *** were the most virulent fungi,while ***,*** and *** were considered to be weak *** research highlights the importance that grapevine trunk diseases have on grapevine health in growing regions where,due to different climatological conditions,interspecific hybrid cultivars are predominantly grown.

关键词： Botryosphaeriaceae Canker Diatrypaceae eutypa dieback esca Grape hybrid Multi-gene phylogeny Phomopsis viticola Vitis vinifera

Site Selection Appraisal for Tidal Turbine Development in the river Mer.ey

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Journal of Marine Science and Application 2018年第1期17卷 112-121页

作者： C.L.Kelly e.Blanco-davis C.Michailides P.A.Davies J.Wang Department of Maritime and Mechanical engineering LOOM Research CentreLiverpool John Moores UniversityLiverpool L3 3AFUK

This paper used a specialist software package to produce a detailed model of the river Mer.ey estuary,which can be subjected to a range of simulated tidal *** aim of this research was to use the validated model to identify the optimal location for the positioning of a tidal *** was made identifying a new optimal site for power generation using velocity data produced from simulations conducted using the MIKe 3 *** process resulted in the identification of site 8,which sits mid-river between the Mor.eth Dock and the Albert Dock,being identified as the favoured location for tidal power generation in the river *** analysis of the site found that a 17.2-m diameter single rota multidirectional turbine with a 428-kWrated capacity could produce 1.12 GWh annually.

关键词： Tidal power generation Tidal energy Tidal site analysis river Mer.ey MIKe 3

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继发于早产儿视网膜病变的4A期和4B期的视网膜脱离在进行3通道保留晶状体的玻璃体切除术后的晶状体透明性

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世界核心医学期刊文摘(眼科学分册) 2006年第4期 17-18页

作者： Lakhanpal r.r. davis G.H. e.r. Holz 王海燕 Dr. Department of Ophthalmology Cullen Eye Institute Baylor College of Medicine 6565 Fannin St Houston TX 77030 United States

Objective: To assess lens clarity after 3-port lens-sparing vitrectomy for stages 4A and 4B tractional retinal detachment secondary to retinopathy of prematurity. Methods: In a retrospective, inter.entional, consecutive clinical case ser.es, 108 eyes of 102 patients who under.ent lens-sparing vitrectomy for stages 4A and 4B tractional retinal detachment from February 1, 1998, through January 31, 2004, were reviewed. All procedures and follow-up examinations were perfor.ed by a single sur.eon. Lens clarity was assessed at the final follow-up examination. results: Of the 108 eyes reviewed, 102 (94.4%)maintained clear lenses at the final follow-up examination, which ranged from 6 to 48 months (mean, 32months) after the procedure. Thirty-two eyes had stage 4A detachments and 76 eyes had stage 4B. Conclusions: Thr.e-port lens-sparing vitrectomy may be perfor.ed with relatively low risk of cataract formation during the early postoperative period. Maintenance of a clear crystalline lens during the critical period of visual development may lead to better functional outcomes.

关键词：玻璃体切除术视网膜脱离晶状体早产儿病变透明性

Mantle-derived Xenoliths and the Token of a Modern Back-Arc Geotherm Beneath eastern China

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Science China Chemistry 1994年第4期37卷 472-480页

作者：金振民 H.W.Gr.enII r.S.Borch 金淑燕 T.N.Tingle T.e.Young Department of Geology university of CaliforniaDavisCA95616USA Department of Geology University of California Daves CA95616USA. Division of Geomechanics China University of Geosciences Wuhan 430074 PRC

Xenoliths of gar.et and spinel-gar.et 1herzolite from Mingxi, eastern China have been studied in terms of comprehensive methods of mineralogy, petrology, fabrics, mierostructures and infrared spectrum. The temperature and pressure equilibration of the xenolith have been calculated using the TeMPeST program with the two-pyroxene geothermometer of Bertrand and Mercier (1985) combined with the geobarometer of Nickel and Gr.en (1985). The temperature and pressure of xenoliths range from^1300 K at 1. 9 GPa (60 km) to ~1500 K at 2. 6 GPa (80 km). The geotherm infer.ed from xenolith is excellently consistent with the measured surface heat flow (70 mW/m2) in Mingxi. A character of geothermal cur.e and conductive type suggest that these xenoliths are from the lithosphere, not from the asthenosphere. The geotherm and mierostructures and prefer.ed or.entations of minerals in the xenolith are consistent with tecon-ic thinning of the lithosphere in the present-day extensional back-arc environment.

关键词： mantle xenolith spinel-gar.et Iherzolite geotherm thermal structure of the lithosphere extensional back-arc environment.

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Diminished fracture initiation sites in ceramic layers bonded to glow-dischar.e treated substructure

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Open Journal of Stomatology 2013年第6期3卷 307-313页

作者： Hyeongil Kim edward A. Monaco Jr. Frederick McIntyre elaine L. davis robert e. Baier Department of Oral Diagnostic Sciences University at Buffalo New York USA Department of restorative Dentistry University at Buffalo New York USA VA Western New York Healthcare System at Buffalo New York USA

A mechanically retentive structure and meticulous surface cleanliness are critical factors in providing fracture resistance and clinical success of metal ceramic restorations. This investigation compared the por.elain/metal interfaces of deliberate compressive fractures of ceramic crowns between conventional preparation and application of the radio Frequency Glow Dischar.e Treatment (rFGDT) before each bonding step. It evaluated rFGDT’s capacity to improve wetting effectiveness and minimize porosity. Twelve metal ceramic crowns were fabricated identically. rFGDT was applied to the metal substructures of half the specimens before the ceramic layering process. All specimens were fractured in the same manner by an applied compressive for.e to simulate dental occlusive failure. Fracture surfaces were inspected by light and scanning electron microscopy. Quantitative analyses of images were perfor.ed to identify numbers, locations of cracks, porosity patterns, and other morphological cor.elates of the fracture zones. There were significantly fewer voids per millimeter at the interfaces in the rFGDT group than in the non-rFGDT group (t = 2.377, df = 9, p = 0.021). There was a significant difference in the number of horizontal cracks per millimeter between the groups (t = 2.132, df = 7, p = 0.035), with more cracks occurring in the non-rFGDT group. rFGDT can improve the integrity of metal ceramic crowns by increasing the substratum surface energy, improving por.elain wetting and spreading and thereby diminishing the numbers of interfacial voids available for initiation of fracture. routine application of rFGDT should result in fewer cracks along metal/ceramic interfaces in all restorative preparations.

关键词： Por.elain Fracture Glow Dischar.e Treatment Metal Ceramic Crown Porosity Surface energy

Long-Term Passive Integrated Transponders (PIT) Tag retention in Juvenile rainbow Trout and Brown Trout

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Open Journal of Marine Science 2020年第3期10卷 110-115页

作者： Barry J. Hanson Jacob L. davis Jill M. Voor.ees Nathan Huysman Michael e. Bar.es Department Game Fish and Parks McNenny State Fish Hatchery Spearfish SD USA Department Game Fish and Parks Outdoor Campus West Rapid City SD USA

Two hundred and forty-thr.e juvenile rainbow trout Oncorhynchus mykiss ranging from 73 to 119 mm were implanted with 8, 9, or 10 mm Passive Integrated Transponder (PIT) tags, with tag retention and fish survival observed for 343 days. Similarly, 173 brown trout Salmo truttae="font-size:12px;font-family:Verdana;"> ranging from 71 to 86 mm were implanted with 8 or 10 mm PIT tags and obser.ed for 293 days. Over the entire duration of the study, rainbow trout ejected only six tags, while no tags were ejected from the brown trout. All of the rainbow trout tag ejections occur.ed before 50 days post-tagging. There was no significant difference in the length or weight of fish that ejected tags compared to those that retained tags. No fish died during the trials. These results indicate that rainbow trout and brown trout at the sizes used in this study can be safely implanted with, and subsequently retain, up to 10 mm PIT tags for durations of nearly one year.

关键词： Tagging Salmonids Passive Integrated Transponders PIT Tag Fingerling

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纤维素溶剂

广州化学 1981年第1期 78-86页

作者： A.F.Turbak r.B.Hammer r.e.davis H.L.Her.ert 梁锋

纤维素是世界上最丰富的可重用的有机原料,然而,在许多应用领域中,对纤维素的可利用性仍未达到它的潜力。最主要理由之一是大部分应用天然纤维素是不适宜的,所以一般需要溶解纤维素,而后重新把它从溶液成型为所需产品。与改变为同样应... 详细信息

纤维素是世界上最丰富的可重用的有机原料,然而,在许多应用领域中,对纤维素的可利用性仍未达到它的潜力。最主要理由之一是大部分应用天然纤维素是不适宜的,所以一般需要溶解纤维素,而后重新把它从溶液成型为所需产品。与改变为同样应用的竞争材料比较,溶解步骤常常是既麻烦而又费钱。即使在纤维素仅具有最后用途所需的性质的情况下才需要制取纤维素溶液的方法,但常常带来潜在的公害和控制污染的问

关键词：纤维素溶剂 DMSO DMF 亚砜甲酰胺极性溶剂纤维素溶液