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Digital world meets urban planet–new prospects for evidencebased urban studies arising from joint exploitation of big earth data,information technology and shared knowledge

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International Journal of Digital Earth 2020年第1期13卷 136-157页

作者： Thomas Esch Hubert Asamer Felix Bachofer Jakub Balhar Martin Boettcher Enguerran Boissier Pablo d’Angelo Caroline MGevaert Andreas Hirner Katerina Jupova Franz Kurz Andy Yaw Kwarteng emmanuel mathot Mattia Marconcini Alessandro Marin Annekatrin Metz-Marconcini Fabrizio Pacini Marc Paganini Hans Permana Tomas Soukup Soner Uereyen Christopher Small Vaclav Svaton Julian Nils Zeidler German Aerospace Center(DLR) German Remote Sensing Data Center(DFD)WeßlingGermany GISAT s.r.o. PragueCzech Republic Brockmann Consult GmbH GeesthachtGermany Terradue Srl RomeItaly International Institute for Geo-Information Science and Earth Observation(ICT) Universiteit TwenteEnschedeNetherlands Remote Sensing and GIS Center Sultan Qaboos UniversityMuscatOman European Space Agency(ESA) FrascatiItaly Department of Earth and Environmental Sciences Columbia UniversityLamont Doherty Earth ObservatoryNew YorkNYUSA VSB Technical University of Ostrava IT4InnovationsOstravaCzech Republic

The digital transformation taking place in all areas of life has led to a massive increase in digital data–in particular,related to the places where and the ways how we *** facilitate an exploration of the new opportunities arising from this development the Urban Thematic Exploitation Platform(U-TEP)has been *** enabling instrument represents a virtual environment that combines open access to multisource data repositories with dedicated data processing,analysis and visualisation ***,it includes mechanisms for the development and sharing of technology and *** an introduction of the underlying methodical concept,this paper introduces four selected use cases that were carried out on the basis of U-TEP:two technology-driven applications implemented by users from the remote sensing and software engineering community(generation of cloud-free mosaics,processing of drone data)and two examples related to concrete use scenarios defined by planners and decision makers(data analytics related to global urbanization,monitoring of regional land-use dynamics).The experiences from U-TEP’s pre-operations phase show that the system can effectively support the derivation of new data,facts and empirical evidence that helps scientists and decision-makers to implement improved strategies for sustainable urban development.

关键词： Service platform urban human settlements earth observation decision support

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Modelling die filling with charged particles using DEM/CFD

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Particuology 2012年第2期10卷 229-235页

作者： emmanuel Nkem Nwose School of Chemical Engineering University of Birmingham Birmingham B15 2TT UK

The effects of electrostatic charge on powder flow behaviour during die filling in a vacuum and in air were analysed using a coupled discrete element method and computational fluid dynamics （DEM]CFD） code, in which long range electrostatic interactions were implemented. The present 2D simulations revealed that both electrostatic charge and the presence of air can affect the powder flow hehaviour during die filling. It was found that the electrostatic charge inhibited the flow of powders into the die and induced a loose packing structure. At the same filling speed, increasing the electrostatic charge led to a decrease in the fill ratio which quantifies the volumetric occupancy of powder in the die. In addition, increasing the shoe speed caused a further decrease in the fill ratio, which was characterised using the concept of critical filling speed, When the electrostatic charge was low, the air/particle interaction was strong so that a lower critical filling speed was obtained for die filling in air than in a vacuum. With high electrostatic charge, the electrostatic interactions became dominant. Consequently, similar fill ratio and critical filling speed were obtained for die filling in air and in a vacuum.

关键词： DEMCFDElectrostaticsDie fillingPowder flowCohesionCharged particles

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Systems Analysis of Vulnerability to Hydrometeorological Threats: An Exploratory Study of Vulnerability Drivers in Northern Zimbabwe

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International Journal of Disaster Risk Science 2019年第2期10卷 204-219页

作者： emmanuel Mavhura Department of Geography Bindura University of Science Education

Disasters result from complex interactions of hazards and vulnerability conditions. Reducing human exposure and sensitivity to threats can reduce disaster impact. Prior knowledge about community vulnerability levels is crucial to minimizing potential losses from future threats. Most vulnerability studies focus on high-impact disasters and their temporal and spatial analyses. Yet highfrequency, low-impact disasters have a cumulative potential to severely disrupt or damage socioeconomic *** is limited knowledge especially in the global south about the creation of vulnerability to hydrometeorological threats. Using a systems approach, this study explores ways in which communities in the northern semiarid tropics of Zimbabwe are vulnerable to hydrometeorological *** predominantly qualitative study used literature review, interviews, transect walks, and focus groups to gather data from selected samples involving smallholder farmers with in-depth knowledge about community vulnerability. The results show that the communities are vulnerable to multiple hydrometeorological threats due to multiple interacting factors including rainfed and floodbased farming, land tenure, topography, climate, and other socioeconomic conditions such as inadequate income sources and high poverty. In order to reduce vulnerability,this study provides five policy options for government and nongovernmental organization interventions, including the need to transform rural economies beyond the traditional rainfed and flood-based farming systems.

关键词： Community vulnerability Flood-based farming Hydrometeorological threats Rainfed agriculture Zimbabwe

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Physico-chemical characterization of a farmland affected by wastewater in relation to heavy metals

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第3期9卷 366-372页

作者： emmanuel U. ONWEREMADU Department of Soil Science and Technology Federal University of Technology PMB 1526 Owerri Nigeria

This study investigated selected properties of soils affected by wastewater and its relationship with some heavy metals. A free survey technique involving target sampling was used in siting soil profile pits. Soil samples were collected based on horizon differentiation and analyzed using routine and special analytical techniques. Soil data were subjected to correlation analysis using SAS program. Results show that all heavy metals studied had values above critical limits in the polluted soils using known standards and that these biotoxic metals decreased with soil depths. Highly significant (P=0.01 and 0.05) relationships were established between investigated heavy metals and some soil properties, especially soil pH and organic matter. Further studies involving more edaphic properties, biotoxic metals and their bioaccessibility in crops growing on wastewater soils will surely enhance knowledge and management of these highly anthropogenically influenced soils of the study site.

关键词： Bioavailability Characterization Heavy metals Soil pollution Wastewater

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A Unified Spatio-Temporal Framework of the Cuerno-Barabasi Stochastic Continuum Model of Surface Sputtering

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Communications in Theoretical Physics 2012年第7期58卷 165-170页

作者： Oluwole emmanuel Oyewande Department of Physics University of Ibadan

The nonlinear continuum model proposed by Cuerno and Barabasi is the most successful and widely acceptable theoretical description of oblique incidence ion sputtered surfaces to date and is quite robust in its predictions of the time evolution and scaling of interfaces driven by ion bombardment. However, this theory has thus far predicted only ripple topographies and rough surfaces for short and large scales, respectively. As a result, its application to the interpretation and study of nanodots, predicted by Monte Carlo simulations for, and observed in experiments of, oblique incidence sputtering is still unclear and, hence, an open problem. In this paper, we provide a new insight to the theory, within the same length scale, that explains nanodot formation on off-normal incidence sputtered surfaces, among others, and propose ways of observing the predicted topographies of the MC simulations, as well as possible control of the size of the nanodots, in the framework of the Cuerno-Barabasi continuum theory.

关键词： topographic phase diagrams surface nanostructures surface nanodots Cuerno-Barabasi model

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Abiraterone acetate for prostate cancer： a new era ot hormonal therapies

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Asian Journal of Andrology 2011年第5期13卷 663-664页

作者： emmanuel S Antonarakis Johns Hopkins Sidney Kimmel Comprehensive CancerCenter Baltimore MD 21231 USA

Therapies targeting the androgen receptor （AR） axis have constituted the HolyGraft in the management of advanced prostate cancer for seven decades） These hormonal therapies have traditionally taken two main forms： those that suppress gonadal androgen synthesis （e.g., the gonadotropin releasing hormone agonists/antagonists, such as leuprolide）, and those that inhibit the AR directly （e.g., the anti-androgens, such as bicalutamide）. However, although the vast majority of patients with prostate cancer initiaUy respond favorably to androgen-ablative therapies （manifested by tumor regressions and symptomatic improvements）, all patients will eventually develop further disease progression after a median of 18-24 months. This transformed disease state, known as castration-resistant prostate cancer （CRPC）, is invariably fatal.

关键词： Enzyme mechanisms

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Combining active immunotherapy with immune checkpoint blockade for the treatment of advanced prostate cancer

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Asian Journal of Andrology 2012年第4期14卷 520-521页

作者： emmanuel S Antonarakis Johns Hopkins Sidney Kimmel Comprehensive Cancer Center Baltimore MD 21231 USA

Combination immunotherapy is emerging as a promising approach for the treatment of advanced prostate cancer. This research highlight discusses the combination of a PSA-directed pox-viral vaccine and a monoclonal antibody blocking an important immune checkpoint molecule to treat men with metastatic castration- resistant prostate cancer. The results demonstrate feasibility and safety, as well as intriguing clinical responses to this combination therapy.

关键词： Dementia Nutrition Obesity Weight management

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Recent developments in the application of oil palm fibers in cement composites

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Frontiers of Structural and Civil Engineering 2020年第1期14卷 94-108页

作者： emmanuel Owoichoechi MOMOH Adelaja Israel OSOFERO School of Engineering University of AberdeenAberdeenAB243UEUK

Fibers obtained from different parts of the oil palm tree(Elaeis guineensis)have been under investigation for possible use in *** have been carried out investigating the engineering properties and possible applications of these ***,the experimental methods employed and the values of mechanical and physical properties recorded by various authors are *** has therefore become necessary to organize information which would be useful in the design of oil palm fiber cement composites and help researchers and engineers make informed decisions in further research and *** review provides information about fibers from different parts of the oil palm,their properties,enhancement techniques,current and potential application in cement composites.

关键词： broom cement composite concrete oil palm fiber Natural fiber-concrete sustainability

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Natural and modified food hydrocolloids as gluten replacement in baked foods:Functional benefits

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Grain & Oil Science and Technology 2023年第4期6卷 163-171页

作者： emmanuel Anyachukwu Irondi Yunus Temitayo Imam emmanuel Oladipo Ajani emmanuel Oladeji Alamu Department of Biochemistry Kwara State UniversityMaletePMB 1530IlorinNigeria Food and Nutrition Sciences Laboratory International Institute of Tropical AgriculturePMB 5320Oyo RoadIbadanOyo StateNigeria Food and Nutrition Sciences Laboratory International Institute of Tropical AgricultureSouthern AfricaResearch and Administration Hub(SARAH)Campus PO Box 310142ChelstoneLusaka 10101Zambia

Gluten,the protein responsible for the superior viscoelastic properties of refined wheat flour dough over glutenfree cereals,causes celiac disease in people susceptible to ***,the sustainability of using wheat flour in baked foods is threatened by its high cost,especially in countries that depend on imported wheat for their bakery *** has shown that hydrocolloids serve as gluten replacements in baked foods,in response to these *** hydrocolloids are a class of high-molecular weight polysaccharides and proteins,which serve as functional ingredients in the food industry that modify the foods’rheological and textural *** function as stabilizers,viscosity modifiers,gelling agents,water binders,fibres,and inhibitors of ice crystal in ***,food hydrocolloids have also been reported to possess health-promoting properties,such as lowering of postprandial blood glucose and plasma cholesterol concentrations,colon cancer prevention,and modulation of intestinal transit and *** are obtained from plants,animals or microorganisms,and can be used in their natural or modified *** aim of this paper is to review the functional benefits of natural and modified hydrocolloids as gluten replacements in baked foods,emphasizing their physicochemical,nutraceutical,and sensorial *** application effects of food hydrocolloids as gluten substitutes in gluten-free baked products’quality were ***,some practical approaches to improve the quality of gluten-free baked products,in response to an increasing consumers’demand and the rising cost of refined wheat flour were highlighted.

关键词： Food hydrocolloids Baked food Functional importance Gluten-free food Nutraceutical benefits Sensory quality

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Density Results in Sobolev Spaces Whose Elements Vanish on a Part of the Boundary

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Chinese Annals of Mathematics,Series B 2011年第6期32卷 823-846页

作者： Jean-Marie emmanuel BERNARD Laboratoire Analyse et Probabitilités Université d'Evry val d'Essonne23 Boulevard de France91037 EVRYFrance

This paper is devoted to the study of the subspace of Wm＇＂ of functions that vanish on a part γ0 of the boundary. The author gives a crucial estimate of the Poincare constant in balls centered on the boundary of γ0. Then, the convolution-translation method, a variant of the standard mollifier technique, can be used to prove the density of smooth functions that vanish in a neighborhood of γ0, in this subspace. The result is first proved for m = 1, then generalized to the case where m 〉 1, in any dimension, in the framework of Lipschitz-continuous domain. However, as may be expected, it is needed to make additional assumptions on the boundary of γ0, namely that it is locally the graph of some Lipschitz-continuous function.

关键词： Density results Boundary value problems Sobolev spaces

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