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Uncertainty quantification in the Permian Basin using conventional and modified bootstrap methodology

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Petroleum Research 2023年第4期8卷 439-454页

作者： Chukwuemeka O.Okoli Scott d.goddard Obadare O.Awoleke department of Petroleum Engineering University of Alaska FairbanksFairbanks99775AlaskaUSA National Energy Technology Laboratory 1450 Queen Avenue SWAlbany97321OregonUSA department of Mathematics&Statistics University of Alaska FairbanksFairbanks99775AlaskaUSA

Various uncertainty quantification methodologies are presented using a combination of several deter-ministic decline curve analysis models and two bootstrapping *** probabilistic models are applied to 126 sample wells from the Permian *** are presented for 12-72 months of pro-duction hindcast given an average well production history of 103 *** on the coverage rate and the forecast error(with the coverage rate being more significant in our choice of the best probabilistic models)and using up to one-half of the available production history for a group of sample wells from the Permian Basin,we find that the CBM-SEPd combination is the best probabilistic model for the Central Basin Platform,the MBM-Arps combination is the best probabilistic model for the delaware Basin,the CBM-Arps is the best probabilistic model for the Midland Basin,and the best probabilistic model for the overall Permian Basin is the CBM-Arps when early time data is used as hindcast and CBM-SEPd for when one-quarter to one-half of the data is used as *** three-quarters or more of the available production history is used for analysis,the MBM-SEPd probabilistic model is the best combination in terms of both coverage rate and forecast error for all the sub-basins in the *** novelty of this work lies in its extension of bootstrapping methods to other decline curve analysis *** work also offers the engineer guidance on the best choice of probabilistic model whilst attempting to forecast production from the Permian Basin.

关键词： Uncertainty quantification Machine learning Bootstrapping Reservoir forecasting Frequentist probabilistic models

Suppression of discontinuous precipitation and strength improvement by Sc doping in Cu-6 wt%Ag alloys

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Journal of Materials Science & Technology 2023年第4期135卷 80-96页

作者： Bailing An Rongmei Niu Yan Xin William LStarch Zhaolong Xiang Yifeng Su Robert E.goddard Jun Lu Theo M.Siegrist Engang Wang Ke Han Key Laboratory of Electromagnetic Processing of Materials(Ministry of Education) Northeastern UniversityShenyang 110819China School of Materials Science and Engineering Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China National High Magnetic Field Laboratory Florida State UniversityTallahasseeFL 32310USA Oak Ridge National Laboratory Oak RidgeTN 37830USA FAMU-FSU College of Engineering TallahasseeFL 32310USA

In low-Ag Cu matrix alloys,the presence of coarse discontinuous precipitates may limit *** demonstrated that discontinuous precipitation was suppressed,and continuous precipitation was en-hanced by the doping of Cu-6 wt%Ag with Sc.A high-volume fraction of continuous precipitates,which nucleated on{111}planes,led to a 55 MPa increase in strength,with only a slight decrease in electri-cal *** addition of Sc inhibited the nucleation of discontinuous precipitates by causing the Sc and the Ag to co-segregate onto grain boundaries,thus forming a thin intermetallic compound layer between *** deformation,both discontinuous and continuous precipitates were drawn into Ag *** combination of deformation strain and doping caused an increase in density and a decrease in the diameter of Ag fibers,resulting in about 205 MPa increase in doped samples when the deformation strain reached *** thinner,denser Ag fibers in the doped samples also caused higher electron scatter-ing at interfaces,leading to electrical conductivity that was 11%IACS lower than in non-doped *** reference,100%IACS(International Annealed Copper Standard)is equivalent to 1.7241μΩcm.

关键词： Sc doping Grain boundary segregation Precipitation Strength Electrical conductivity Plastic deformation

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欧洲的近实时降水分析

气象科技 1992年第4期20卷 75-79页

作者： d.M.goddard B.J.Conway 王亚光英国气象局

1.前言1986年4月26日,苏联乌克兰切尔诺贝利列宁核电站4号反应堆发生事故.该事故在世界上是迄今为止最为严重的逸出放射性物质进入大气的事件,逸出的大量物质从空中被输送到遥远的地区,造成对欧洲许多地区的污染(Smith和Clark,1989).

关键词：欧洲降水地面污染物沉降模式

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高聚物流体力学

力学进展 1982年第4期 404-418页

作者： J.d.goddard ,许元泽

A.引言高聚物液体由高分子量的聚合物或“大分子”以溶液或熔体状态存在.它是粘弹性液体或非牛顿液体最普遍的一类,高聚物合成工业的发展以及对这类液体力学性能的了解和数学描述,对近30年来连续介质力学的全面发展有难以估量的贡献。... 详细信息

A.引言高聚物液体由高分子量的聚合物或“大分子”以溶液或熔体状态存在.它是粘弹性液体或非牛顿液体最普遍的一类,高聚物合成工业的发展以及对这类液体力学性能的了解和数学描述,对近30年来连续介质力学的全面发展有难以估量的贡献。本文综述粘弹性流体力学的发展,以高聚物液体为典型。这里,“力学”一词既包括具有

关键词：分子运动论衰减记忆流变学热之唯动说方程无规过程布朗运动流体动力学大分子导数线性粘弹性流体力学

Hepatitis E virus: Western Cape, South Africa

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World Journal of Gastroenterology 2016年第44期22卷 9853-9859页

作者： Richie G Madden Sebastian Wallace Mark Sonderup Stephen Korsman Tawanda Chivese Bronwyn Gavine Aniefiok Edem Roxy Govender Nathan English Christy Kaiyamo Odelia Lutchman Annemiek A van der Eijk Suzan d Pas Glynn W Webb Joanne Palmer Elizabeth goddard Sean Wasserman Harry R dalton C Wendy Spearman Royal Cornwall Hospital Trust and European Centre for Environment and Human Health University of Exeter division of Hepatology Department of Medicine Faculty of Health Sciences University of Cape Town and Groote Schuur Hospital National Health Laboratory Service Groote Schuur Hospital Cape Town and Division of Medical Virology University of Cape Town Faculty of Health Sciences department of Viroscience Erasmus Medical Centre Medical Center Rotterdam department of Paediatrics Faculty of Health Sciences University of Cape Town and Red Cross Children’s Hospital division of Infectious diseases and HIV Medicine Department of Medicine Faculty of Health Sciences University of Cape Town and Groote Schuur Hospital

AIM To conduct a prospective assessment of anti-hepatitis E virus(HEV) Ig G seroprevalence in the Western Cape Province of South Africa in conjunction with evaluating risk factors for *** Consenting participants attending clinics and wards of Groote Schuur, Red Cross Children's Hospital and their affiliated teaching hospitals in Cape Town, South Africa, were sampled. Healthy adults attending blood donor clinics were also recruited. Patients with known liver disease were excluded and all major ethnic/race groups were included to broadly represent local demographics. Relevant demographic data was captured at the time of sampling using an interviewer-administered confidential questionnaire. Human immunodeficiency virus(HIV) status was self-disclosed. HEV Ig G testing was performed using the Wantai? *** HEV is endemic in the region with a seroprevalence of 27.9%(n = 324/1161) 95%CI: 25.3%-30.5%(21.9% when age-adjusted) with no significant differences between ethnic groups or HIV status. Seroprevalence in children is low but rapidly increases in early adulthood. With univariate analysis, age ≥ 30 years old, pork and bacon/ham consumption suggested risk. In the multivariate analysis, the highest risk factor for HEV Ig G seropositivity(OR = 7.679, 95%CI: 5.38-10.96, P der followed by pork consumption(OR = 2.052, 95%CI: 1.39-3.03, P demonstrates that HEV genotype 3 may be currently circulating in the Western *** Hepatitis E seroprevalence was considerably higher than previously thought suggesting that hepatitis E warrants consideration in any patient presenting with an unexplained hepatitis in the Western Cape, irrespective of travel history, age or ethnicity.

关键词： Hepatitis E Seroprevalence South Africa Pork consumption Genotype

纤维囊性病与克山病的病因学、脏器病理学的共同点(英文)

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中国地方病学杂志 1989年第3期8卷 186-199,159页

作者： Joel d.Wallach 马兰曾宪惠于维汉谷伯起于凤滕 Roy F.goddard

克山病(Keshan disease、简称 KSd)与纤维囊性病(Cystic Fibrosis 简称 CF)有其共同特点,如心肌呈散在性灶性坏死和纤维变,发病年龄多为胎儿或学龄前儿童等。而肝脏和胰腺损害为纤维囊性病的特征性病变。本文作者对克山病尸检材料作了... 详细信息

克山病(Keshan disease、简称 KSd)与纤维囊性病(Cystic Fibrosis 简称 CF)有其共同特点,如心肌呈散在性灶性坏死和纤维变,发病年龄多为胎儿或学龄前儿童等。而肝脏和胰腺损害为纤维囊性病的特征性病变。本文作者对克山病尸检材料作了进一步研究。在已确诊的1700例克山病病例中发现595例(35%)有纤维囊性病的胰腺改变,均为胎儿和学龄前儿童。其中850例(50%)表现出不同程度的灶性胆汁性肝硬变,85例(5%)发展成严重的小叶性肝硬化。纤维囊性病和克山病的另一共同点是易感个体的硒元素缺乏,易感个体多为胎龄17周至6个月的胎儿或是早期幼儿。克山病和纤维囊性病缺硒的表现是有区别的,但在基本的细胞水平及组织水平的病理生理学上,二者即便不是完全一致,已是十分相近的。

关键词：克山病纤维囊性病病因学

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The magnetosheath at high spectral resolution

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Earth and Planetary Physics 2024年第1期8卷 234-246页

作者： K.d.Küntz d.Koutroumpa W.R.dunn A.Foster F.S.Porter d.G.Sibeck B.Walsh The Henry A.Rowland department of Physics and Astronomy Johns Hopkins University3701 San Martin DriveBaltimoreMD21218USA NASA goddard Space Flight Center 8800 Greenbelt RoadGreenbeltMD 20771USA LATMOS-OVSQ CNRSUVSQ Paris-SaclaySorbonne Université11 Boulevard d’Alembert78280GuyancourtFrance department of Physics and Astronomy University College LondonLondonUK The Centre for Planetary Science at UCL/Birkbeck Gower StreetLondon WC1E 6BTUK Center for Astrophysics Harvard University&Smithsonian Institution60 Garden StreetCambridgeMA 02138USA Center for Space Physics Boston University110 Cummington MallBostonMAUSA

While we eagerly anticipate SMILE’s(Solar wind Magnetosphere Ionosphere Link Explorer)unprecedented X-ray observations of the Earth’s magnetosheath and the initiation of a new era of magnetospheric research,it seems appropriate to look ahead to the abilities of the next generation of astrophysics *** these,the Line Emission Mapper(LEM),a large aperture micro-calorimeter based mission,is currently planned to be able to observe the magnetosheath at high spectral resolution(~2 eV).With a field of view of~30′,LEM will allow higher spatial resolution and higher cadence measurement of the motion of a very small portion of the magnetopause over relatively short periods of time(multiple hours),complementing SMILE’s global ***’s strength is its spectral *** will be able to measure the abundance of a broad range of elements and ionization states,many of which are inaccessible to current in situ instruments,and will be able to separate the emission from the magnetosheath from the emission from the cosmic X-ray background using the difference in their relative velocities.

关键词： magnetosheath charge exchange solar wind abundances

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Uncovering recent progress in nanostructured light-emitters for information and communication technologies

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Light(Science & Applications) 2021年第9期10卷 1571-1587页

作者： Frédéric Grillot Jianan duan Bozhang dong Heming Huang LTCI Institut Polytechnique de ParisTélécom Paris19 place Marguerite Perey91120PalaiseauFrance Center for High Technology Materials University of New-Mexico1313 Goddard St SEAlbuquerqueNM87106USA State Key Laboratory on Tunable Laser Technology School of Electronic and Information EngineeringHarbin Institute of TechnologyShenzhen518055China

Semiconductor nanostructures with low dimensionality like quantum dots and quantum dashes are one of the best attractive and heuristic solutions for achieving high performance photonic *** one or more spatial dimensions of the nanocrystal approach the de Broglie wavelength,nanoscale size effects create a spatial quantization of carriers leading to a complete discretization of energy levels along with additional quantum phenomena like entangled-photon generation or squeezed states of light among *** article reviews our recent findings and prospects on nanostructure based light emitters where active region is made with quantum-dot and quantum-dash *** applications ranging from silicon-based integrated technologies to quantum information systems rely on the utilization of such laser ***,we link the material and fundamental properties with the device *** this purpose,spectral linewidth,polarization anisotropy,optical nonlinearities as well as microwave,dynamic and nonlinear properties are closely *** paper focuses on photonic devices grown on native substrates(InP and GaAs)as well as those heterogeneously and epitaxially grown on silicon *** research pipelines the most exciting recent innovation developed around light emitters using nanostructures as gain media and highlights the importance of nanotechnologies on industry and society especially for shaping the future information and communication society.

关键词： emitter communication polarization

THE TAO OF PROFESSOR KUO——IN CELEBRATING PROF. john T. KUO’S 80TM BIRTHdAY

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THE TAO OF PROFESSOR KUO——IN CELEBRATING PROF. JOHN T. KUO...