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Microstructural Feature of As-cast A-356 Alloy Modifiers with the Addition of SrO

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Journal of Wuhan University of Technology(Materials Science) 2014年第3期29卷 617-619页

作者： MU?IZ rodrigo FLORES Alfredo ORTIZ Juan rodríguez nelly MARTíNEZ Fernando OROZCO Pilar LUNA Jesús Equihua Fabián García Adrián Faculty of Engineering Autonomous University of Coahuila Camporedondo UnitSaltillo Coahuila México CINVESTAV Saltillo Unit Department of Metal Mechanics Technological Institute of Saltillo Faculty of Engineering Autonomous University of Zacatecas FIME Autonomous University of Coahuila Unit

To explore the effect of strontium on the structure of as-cast A356 alloy, the strontium was incorporated to the alloy by metallothermic reduction of SrO where the mineral was added to the melt through the submerged powders injection technique. The evaluation of the modification of the eutectie silicon and the chemical analysis of samples were done using optical microscopy （OP） and inductively coupled plasma （ICP）, respectively, while microstructural analyses by scanning electron microscopy （SEM）, and the injection time was variable. Magnesium was added to the melt to increase the reactivity and reduce the surface tension of the molten aluminum. It was possible to increase the strontium content from 0 to 0.027% after 20 minutes treatment. This concentration was sufficient to bring about full modification structure of eutectic silicon of as cast alloy A 356 and the acceptable quality metallurgical of alloy.

关键词： modification microstmcture strontium eutectic silicon submerged powder injection

Concept cathedral and “squaring the circle”:Interpreting the Gothic cathedral of Notre Dame de Paris as a standing hymn

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Frontiers of Architectural Research 2021年第2期10卷 369-393页

作者： nelly Shafik Ramzy Department:of Architectural Engineerins Faculty of EngineeringBenha UniversityEl KalyobiaEgypt

Semiotics is used in the sphere of visual arts as a tool that helps reading the message included in a certain *** architecture,as an outcome of the rich cultural context of medieval tradition,where metaphysics,numbers and geometry were indispensable tools to symbolically manifest cosmological and theological concepts,is suggested as a good example for testing this approach in the field of *** this paper,a semiotic reading for one of the most distinguished works of this era;i.e.,the cathedral of Notre Dame de Paris,is introduced as a model for this *** many message included in the building,such as the functional or the technical messages,this is a trial to introduce a reading,i.e.,an interpretation,of what could be called rta hidden spiritual messase,The paper comes to a conclusion that the Gothic cathedral,as represented in Notre Dame de Paris,might be perceived as an extemalization of a standing hymn that was meant to send continuous appeals of protection to Heaven.

关键词： Semiotics Architectural language Symbolism Gothic architecture Notre Dame de Paris

Visual lansuase in Mamluk architecture： A semiotic analysis of the Funerary Complex of Sultan Qaitbay in Cairo

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Frontiers of Architectural Research 2013年第3期2卷 338-353页

作者： nelly Shafik Ramzy Department of Architectural Engineering Faculty of En~ineerin~ Sciences Sinai University El Masaeed El Arish City Egypt

Cultural background plays a significant role in the sphere of visual art. Semiotics as a discipUne is recognized as a useful tool in gauging cultural background and identifying signs that might represent the message of a certain work. Given the rich cultural context of Mamluk architecture, this form of art can be used in studying semiotics. Semiotic tools were employed to interpret the expression of architectura（ forms and to formulate a subsequent understanding of these architectura（ forms by turning each element into a communication tool that elucidates meaning. The Sufle tradition was the dominant Islamic practice during the Mamluk period, during which metaphysics, numbers, and geometry were regarded as indispensab（e tools in manifesting the nature of divinity and the order of being. A semiotic reading of the Funerary Complex of Sultan Qaitbay in Cairo, regarded as one of the perfect works of this era, was proposed to study the reflections of these notions on architectural works. Several messages were embodied in the building, such as functional or technical messages. The semiotic reading in this study is solely concerned with the spiritual message of the building.

关键词： Architecturalsemiotics Semiotics of space Architectural lan-guage Symbotism Architectural rhetoric

On the Estimation of the Functional Size of Software from Requirements Specifications

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Journal of Computer Science & Technology 2007年第3期22卷 358-370页

作者： nelly Condori-Fernández Silvia Abrahao Oscar Pastor Department of Information Systems and Computation Valencia University of TechnologyCamino de Vera s/n46020 ValenciaSpain

This paper introduces a measurement procedure, called RmFFP, which describes a set of operations for modelling and estimating the size of object-oriented software systems from high-level specifications using the OO-Method Requirement Model. OO-Method is an automatic software production method. The contribution of this work is to systematically define a set of rules that allows estimating the functional size at an early stage of the software production process, in accordance with COSMIC-FFP. To do this, we describe the design, the application, and the analysis of the proposed measurement procedure following the steps of a process model for software measurement. We also report initial results on the evaluation of RmFFP in terms of its reproducibility.

关键词： requirement specification product metrics measurement technique

Recent advances in the understanding of the molecular mechanisms regulating platelet integrin αIIbβ3 activation

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Protein & Cell 2010年第7期1卷 627-637页

作者： Lanlan Tao Yue Zhang Xiaodong Xi nelly Kieffer Sino-French Research Center for Life Sciences and Genomics(CNRS/LIA-124) Ruijin HospitalShanghai Jiaotong University School of MedicineShanghai 200025China State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin HospitalShanghai Jiaotong University School of MedicineShanghai 200025China

Integrins are allosteric cell adhesion receptors that cycle from a low to a high affinity ligand binding state,a complex process of receptor activation that is of particular importance in blood cells such as platelets or *** we highlight recent progress in the understanding of the molecular pathways that regulate integrin activation in platelets and leukocytes,with a special focus on the structural changes in platelet integrinαIIbβ3 brought about by key intracellular proteins,namely talin and kindlins,that are of crucial importance in the regulation of integrin *** that the small GTPase Rap1 and its guanine exchange factor CalDAG-GEF1,together with RIAM,a Rap1GTP adaptor protein,promote the interaction of talin with the integrinβsubunit,has greatly contributed to fill the gap in our understanding of the signaling pathway from G-coupled agonist receptors and their phospholipase C-dependant second messengers,to integrin *** of patients with the rare blood cell disorder LAD-III have contributed to the identification of kindlins as new co-regulators of the talin-dependent integrin activation process in platelets and leukocytes,underlining the relevance for the in-depth investigation of patients with rare genetic blood cell disorders.

关键词： activation β3 rare

Utility of positron emission tomography-computed tomography scan in detecting residual hepatocellular carcinoma post treatment:Series of case reports

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World Journal of Gastrointestinal Oncology 2020年第3期12卷 358-364页

作者： Jason T Cheng nelly E Tan Michael L Volk Transplantation Institute Loma Linda University Medical CenterSan BernardinoCA 92408United States Department of Radiology Loma Linda University Medical CenterLoma LindaCA 92354United States

BACKGROUND Multi-phase computed tomography(CT)or magnetic resonance imaging(MRI)has been the standard of care for hepatocellular carcinoma(HCC)diagnosis for *** SUMMARY We report a case series of four patients in whom positron emission tomographycomputed tomography(PET-CT)scan complemented the conventional CT/MRI scans in evaluating treatment *** these four cases the conventional multi-phase CT and MRI failed to identify residual HCC disease post-treatment,while PET-CT complemented and aided in treatment response *** each case,the addition of PET-CT identified and located residual HCC disease,allowed retreatment,and altered medical *** This case series suggests that PET-CT should perhaps play a role in the HCC management algorithm,in addition to the conventional contrast-enhanced multiphase scans.

关键词： Hepatocellular carcinoma Positron emission tomography Contrast-enhanced multiphase scan Cirrhosis Residual cancer Treatment response evaluation Case series

The forecast of fire impact on Pinus sylvestris renewal in southwestern Siberia

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Journal of Forestry Research 2021年第5期32卷 1911-1919页

作者： Stanislav NSannikov nelly SSannikova Irina VPetrova Olga E.Cherepanova Botanical Garden of the Ural Branch of Russian Academy of Science 202a8 Marta St.Yekaterinburg 620144Russia

Simulation of fire impact on forest floor renewal in pine forests was based on predictions for 2100 by the Canadian Climate Centre for increase in temperatures of by4.5℃and total precipitation by 14%in the West Siberian pre-forest-steppes and empirical regression relationships between them and the degree of burnt forest floor,as well as amount of Pinus sylvestris *** was predicted that by 2100,pine regeneration on fire prone sites under the canopy of the dominant forest type will increase by 29-54%compared to the 1980 s but on adjacent open sites,regeneration will decrease twice as *** means that the regeneration potential and pine population stability in pre-forest-steppes will become as poor as it is today.

关键词： Fire Forecast Stability Population Mathematical model Seeds Imitation model Undergrowth

聚乙烯吡咯烷酮稳定的钯纳米粒子催化加氢(英文)

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催化学报 2008年第11期29卷 1165-1168页

作者： nelly ZAKARINA Essen BEKTUROV D.V. Sokolsky Institute of Organic Catalysis and Electrochemistry A.B. Bekturov Institute of Chemistry Sciences

Nanosized colloidal platinum was prepared by reduction of H2PtCl6 in methanol-water mixture by refluxing. The particle size and morphology were characterized by transmission electron microscopy and electron diffraction. The influence of polyvinylpyrrolidone (PVP) molecular mass (MM),PVP concentration,and reduction time on platinum particle size was investigated. Small (1-2 nm) Pt particles are formed in the case of PVP with MM=1.2×104. With increasing polymer MM and decreasing polymer concentration,large aggregates from small particles appear. High catalytic activity of the obtained colloidal platinum in hydrogenation of acetylene compounds is shown. The effect of Pt particle size on the catalytic activity was studied.

关键词：铂纳米粒子稳定性加氢工艺聚乙烯吡咯烷酮化学分析

Synergy of sodium doping and nitrogen defects in carbon nitride for promoted photocatalytic synthesis of hydrogen peroxide

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Chinese Chemical Letters 2024年第8期35卷 324-329页

作者： Fabrice nelly Habarugira Ducheng Yao Wei Miao Chengcheng Chu Zhong Chen Shun Mao College of Environmental Science and Engineering State Key Laboratory of Pollution Control and Resource ReuseTongji UniversityShanghai 200092China Baowu Water Technology Co. Ltd.Research InstituteShanghai 201999China

Photocatalytic synthesis of hydrogen peroxide has gradually become a promising method for in-situ pro-duction of hydrogen peroxide,which relies on sustainable solar ***,the commonly used photocatalyst,i.e.,carbon nitride(CN),still suffers from the drawbacks of narrow light absorption range and fast charge ***,we report a facile method to introduce nitrogen defects into carbon nitride together with sodium *** adjusting the ratio of sodium dicyandiamide,the band gap of carbon nitride can be controlled,while the carrier separation and transfer ability of carbon nitride is *** modified CN with sodium doping and nitrogen defect(SD-CN)demonstrates outstanding H_(2)O_(2)pro-duction performance(H_(2)O_(2)yield rate of 297.2μmol L^(−1)h^(−1))under visible light irradiation,which is approximately 9.8 times higher than that of pristine *** work deepens the understanding of the coordinated effect of structural defect and element doping of carbon nitride on the photocatalytic H_(2)O_(2)production performance,and provides new insight into the design of photocatalytic system for efficient production of H_(2)O_(2).

关键词： Photocatalysis H_(2)O_(2)evolution Sodium doping Nitrogen defect Metal-free catalyst