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反射地震资料全波方程的向下延拓

石油勘探开发情报 1990年第1期 31-39页

作者： D．j.foster 张国锋

研制出一种压制地震记录中的多次反射的新方法。这种新方法建立在向下延拓步骤上，这种向下延拓步骤使用全波方程式（双曲形）作为向下延拓因子。我们将演示记录波场的向下延拓测绘出多次反射同相轴的射率函数的情景。本方法被成功地应... 详细信息

研制出一种压制地震记录中的多次反射的新方法。这种新方法建立在向下延拓步骤上，这种向下延拓步骤使用全波方程式（双曲形）作为向下延拓因子。我们将演示记录波场的向下延拓测绘出多次反射同相轴的射率函数的情景。本方法被成功地应用于平面波分解的（倾斜迭加）合成资料及野外资料的合个道中。

关键词：地震勘探反射地震资料全波方程延拓算法

Gas Line Pressure Fluctuation Analysis of a Gas-Liquid Reactor

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journal of Thermal Science 2005年第3期14卷 267-271页

作者： j.j.j. CHEN j.C. ZHAO Chemical & Materials Engineering Department The University of Auckland Private Bag 92019 Auckland New Zealand ProfessorChemical & Materials Engineering Department The University of Auckland Private Bag 92019 Auckland New Zealand

To ensure efficient operation of metallurgical gas-liquid reactors, the gas bubbles must be uniformly distributed. For high temperature metallurgical reactors, it is impractical and unsafe to carry out visual observations. An air-water model was used to study the relationship between the bubble flow patterns and the pressure fluctuation signals. The fluctuation signals captured in the time domain were transformed into the frequency domain. Various parameters obtained from the transformed data were analysed for their suitability for delineating the bubble flow patterns observed. These parameters and the flow patterns were found to be well-correlated using the gas flow number.

关键词： gas liquid reactors bubble distribution signal analysis

Computational study on influence of RF shielding box on inductance of coil

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Plasma Science and Technology 2019年第6期21卷 23-28页

作者： S j KIM j j LEE Y S LEE j H KIM S j YOU Applied Physics lab for PLasma Engineering(APPLE) Department of Physics Chungnam National University Daejeon 34134 Republic of Korea Korea Research Institute of Standards and Science(KRISS) Daejeon 34113 Republic of Korea

Despite the fact that a radio frequency (RF) shielding box affects a coil inductance used in matching network,RF engineers have used a coil inductance measured in open space on designing matching networks since it is difficult to precisely measure the coil inductance within the RF shielding *** this work,we investigate the influences of the RF shielding box on the coil inductance via a 3D full electromagnetic wave *** results shows that the coil inductance decreases from-6.0% to-11.9% compared with its ideal inductance depending on coil positions within the RF shielding *** inductive and capacitive coupling between the coil and surfaces of the RF shielding box contribute to the reduction of the coil *** expect that these results would be useful for those who design RF matching networks.

关键词： 3D full EM wave simulation RF matching component RF shield inductive and capacitive coupling

Decision Support System for Evaluating Impact of Product Carbon Labeling Scheme

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Frontiers of Engineering Management 2014年第1期1卷 89-104页

作者： Dong-ling Xu Chris foster Ying Hu jian-bo Yang Manchester Business School The University of Manchester

In this paper a decision support system for systematically evaluating the impact of labeling products with their carbon footprints is developed and applied to prioritize products for carbon labeling in a large supermarket chain in the *** labels may change consumers’ behavior and encourage suppliers to implement carbon-reduction *** changes may,however,lead to unintended *** handle the challenges of uncertainties in the evaluation,the Evidential Reasoning approach and the Intelligent Decision System software for multi-criteria decision analysis are applied to support the *** system developed can be applied to assessing the impact of sustainable development policies to maximize their benefits and minimize their risks.

关键词： impact assessment multiple criteria decision analysis risk analysis carbon footprint decision support system product carbon labeling

Formation of High-quality Advanced High-k Oxide Layers at Low Temperature by Excimer UV Lamp-assisted Photo-CVD and Sol-gel Processing

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Chemical Research in Chinese Universities 2004年第4期20卷 396-402页

作者： YU j. j. Electronic & Electrical Engineering University College London

We have successfully demonstrated that high quality and high dielectric constant layers can be fabricated by low temperature photo-induced or -assisted processing. Ta_2O_5 and ZrO_2 have been deposited at t<400 ℃ by means of a UV photo-CVD technique and HfO_2 by photo-assisted sol-gel processing with the aid of excimer lamps. The UV annealing of as-grown layers was found to significantly improve their electrical properties. Low leakage current densities on the order of 10 -8 A/cm 2 at 1 MV/cm for deposited ultrathin Ta_2O_5 films and ca.10 -6 A/cm 2 for the photo-CVD ZrO_2 layers and photo-irradiated sol-gel HfO_2 layers have been readily achieved. The improvement in the leakage properties of these layers is attributed to the UV-generated active oxygen species O( 1D) which strongly oxidize any suboxides to form more stoichiometric oxides on removing certain defects, oxygen vacancies and impurities present in the as-prepared layers. The photo-CVD Ta_2O_5 films deposited across 10.16-cm Si wafers exhibit a high thickness uniformity with a variation of less than \{±2.0%\} being obtained for ultrathin ca.10 nm thick films. The lamp technology can in principle be extended to larger area wafers, providing a promising low temperature route to the fabrication of a range of high quality thin films for future ULSI technology.

关键词： Excimer lamp High-kdielectrics Thin film Chemical vapour deposition(CVD) Sol-gel processing

Indian plate paleogeography, subduction and horizontal underthrusting below Tibet: paradoxes, controversies and opportunities

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National Science Review 2022年第8期9卷 175-193页

作者： Douwe j.j.van Hinsbergen Department of Earth Sciences Utrecht University

The India–Asia collision zone is the archetype to calibrate geological responses to continent–continent collision, but hosts a paradox: there is no orogen-wide geological record of oceanic subduction after initial collision around 60–55 Ma, yet thousands of kilometers of post-collisional subduction occurred before the arrival of unsubductable continental lithosphere that currently horizontally underlies Tibet. Kinematically restoring incipient horizontal underthrusting accurately predicts geologically estimated diachronous slab break-off, unlocking the Miocene of Himalaya–Tibet as a natural laboratory for unsubductable lithosphere convergence. Additionally, three endmember paleogeographic scenarios exist with different predictions for the nature of post-collisional subducted lithosphere but each is defended and challenged based on similar data types. This paper attempts at breaking through this impasse by identifying how the three paleogeographic scenarios each challenge paradigms in geodynamics, orogenesis, magmatism or paleogeographic reconstruction and identify opportunities for methodological advances in paleomagnetism, sediment provenance analysis, and seismology to conclusively constrain Greater Indian paleogeography.

关键词： collision orogenesis subduction reconstruction Himalaya Tibet

Chromosome-scale scaffolding of the black raspberry (Rubus occidentalis L.) genome based on chromatin interaction data

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Horticulture Research 2018年第1期5卷 868-878页

作者： Rubina jibran Helge Dzierzon Nahla Bassil jill M.Bushakra Patrick P.Edger Shawn Sullivan Chad E.Finn Michael Dossett Kelly j.Vining Robert VanBuren Todd C.Mockler Ivan Liachko Kevin M.Davies Toshi M.foster David Chagné The New Zealand Institute for Plant&Food Research Limited Private Bag 11600Palmerston North4474New Zealand USDA-ARS National Clonal Germplasm Repository 33447 Peoria RoadCorvallisOR97333USA Department of Horticulture Michigan State UniversityEast LansingMI48824-2604USA Phase Genomics SeattleWA98195USA USDA-ARS Horticultural Crops Research Unit CorvallisOR97330USA B.C.Blueberry Council(in Partnership with Agriculture and Agri-Food Canada)Agassiz Food Research Centre AgassizBCV0M 1A0Canada The Donald Danforth Plant Science Center St.LouisMO63132USA Department of Genome Sciences University of Washington School of MedicineSeattleWA98195USA

Black raspberry(Rubus occidentalis L.)is a niche fruit crop valued for its flavor and potential health *** improvement of fruit and cane characteristics via molecular breeding technologies has been hindered by the lack of a high-quality reference *** recently released draft genome for black raspberry(ORUS 4115-3)lacks assembly of scaffolds to chromosome *** used high-throughput chromatin conformation capture(Hi-C)and Proximity-Guided Assembly(PGA)to cluster and order 9650 out of 11,936 contigs of this draft genome assembly into seven *** seven pseudo-chromosomes cover~97.2%of the total contig length(~223.8 Mb).Locating existing genetic markers on the physical map resolved multiple discrepancies in marker order on the genetic *** regions were inferred from recombination frequencies of genetic markers,alignment of 303 bp centromeric sequence with the PGA,and heat map showing the physical contact matrix over the entire *** demonstrate a high degree of synteny between each of the seven chromosomes of black raspberry and a high-quality reference genome for strawberry(Fragaria vesca L.)assembled using only PacBio long-read *** conclude that PGA is a cost-effective and rapid method of generating chromosome-scale assemblies from Illumina short-read sequencing data.

关键词： breeding black interaction

Physical Activity and Fruit and Vegetable Intake among Black and White Female College Students at Two- and Four-Year Colleges and Universities

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Open journal of Preventive Medicine 2014年第4期4卷 229-239页

作者： Carla j. Berg Sherell Brown Goodwin Erin Stratton Kincaid Lowe Linda Grimsley jan Rodd Catherine Williams Cheri Mattox Bruce foster Albany State University Albany USA Central Georgia Technical College Macon USA Chattahoochee Technical College Marietta USA Department of Behavioral Sciences and Health Education Emory University Atlanta USA

Objective: We compared fruit and vegetable (FV) intake, physical activity (PA), and overweight/ obesity among Black and White females attending two- and four-year colleges. Methods: We recruited 24,055 students at six colleges in the Southeast to complete an online survey, yielding 4840 responses (20.1% response rate). The current analyses focused on the 2276 Black and White females. Results: Binary logistic regression analyses indicated that recommended FV intake among White females was associated with greater extraversion (Odds Ratio [OR] = 1.05, 95% Confidence Interval [CI] 1.00, 1.11, p = 0.05) and greater conscientiousness (OR = 1.08, CI 1.02, 1.14, p = 0.01), whereas among Black females correlates included greater openness to experience (OR = 1.08, CI 1.01, 1.15, p = 0.03). Ordinal logistic regression analyses indicated that, among White females, greater PA was associated with attending a four-year college (Beta = 0.27, CI 0.01, 0.53, p = 0.04), whereas among Black females, correlates were with younger age (Beta = -0.01, CI -0.17, -0.03, p = 0.003) and greater emotional stability (Beta = 0.07, CI 0.01, 0.13, p = 0.02). Binary logistic regression analyses indicated that, among White females, being overweight or obese was associated with older age (OR = 1.08, CI 1.01, 1.16, p = 0.03), attending a two-year college (OR = 1.62, CI 1.22, 2.16, p = 0.001), and lower satisfaction with life (OR = 0.96, CI 0.94, 0.98, p = 0.002), whereas among Black females, being overweight or obese was associated with older age (OR = 1.87, CI 1.10, 1.28, p < 0.001). Conclusions: Identifying factors related to obesity-related factors is critical in developing interventions targeting factors associated with overweight and obesity among Black and White females attending two- and four-year colleges. Moreover, understanding different college settings and the contextual factors associated with overweight/obesity is critical.

关键词： Obesity Physical Activity Nutrition College Students Female Health

Using Geospatial Information Systems in Analyzing Urbanization Impacts on Stream Habitats in Southern Mississippi Coastal Ecosystem

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journal of Environmental Science and Engineering 2011年第12期5卷 1624-1641页

作者： E. Merem S. Yerramilli C. Richardson j. Wesley T. Walker D. foster j. Williams C. Romamo E Nwagboso Department of Urban and Regional Planning Jackson State University Jackson MS 39211 USA National Center for Biodefense Communications Jackson State Universi~ Jackson MS 39204 USA Department of Epidemiology and Biostatistics Jackson State University Jackson MS 39213 USA Department of Political Science Jackson State University Jackson MS 39217 USA

The proliferation of urban development with concentration in population and human-environment interaction has intensified around urban environments. This has resulted in the degradation of urban environments, overuse of natural resources and widespread pollution of ecosystems, The patterns of design initiatives continue to follow unsustainable path with impacts on stream ecosystems. Accordingly, the paper adopts geospatial information systems and sustainability principles for the identification and sequential mapping of stressors impeding natural systems in Southern Mississippi. The results not only reveal that the study area experienced some significant changes in its watershed environments, but the stream habitat ecosystem remains under stress. The recommendations for mitigating the problems range from policy considerations to the adoption of ecosystem approach.

关键词： Geospatial information systems urbanization ecological design ecosystem approach environmental degradation.