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能源地球科学(英文) 2021年第1期2卷 10-31页

作者： Mohammed Bukar Richard H.Worden Shettima Bukar philip shell Department of Earth and Ocean Sciences University of LiverpoolLiverpoolL693GPUK Department of Geology University of MaiduguriNigeria Saudi Aramco Al-DhahranEastern RegionSaudi Arabia

A study of the diagenetic evolution of the Late Jurassic sandstones of the shallow marine facies in the Tambar oil field,Norwegian North Sea was carried out to understand its controls on reservoir quality.Core samples and a set of wireline logs obtained from three wells were used to carry out petrographic studies including light optics and scanning electron microscopy,well log analysis,fluid inclusions,X-ray diffraction(XRD)for whole rock samples,clay mineral extracts and stable isotopes.The Tambar reservoir sandstones range mainly from siltstone to fine-grained sandstones,exclusively arkoses cemented mainly by microcrystalline quartz,euhedral quartz overgrowth,dolomite cement,illite and chlorite.Early diagenetic/eodigenetic minerals include pyrite,calcite,and microcrystalline quartz and late diagenetic/mesodiagenetic minerals include quartz overgrowth,dolomite,illite and chlorite.The d18O values of dolomite cement in the Tambar sandstone reservoir range from11.77‰to3.57‰PDB,while the d13C values of the dolomite cement are from5.07‰to1.12‰PDB.Homogenization temperature for fluid inclusions trapped in authigenic quartz fall between 130℃ and 169℃.The reservoir quality is controlled mainly by early formed grain-coating microcrystalline quartz that precipitated from the dissolution of sponge spicules which significantly inhibits quartz overgrowth precipitation.Oil emplacement do not show significant control on reservoir quality because considerable quartz cementation has taken place before the onset of major oil charge.Only the coarse-grained sands show a correlation between quartz cement volume and water saturation.However,the interpreted temperature for dolomite cementation is significantly higher for water leg-suggested effect of oil emplacement on the late dolomite.Under-standing these controls on the reservoir quality will enhance the exploration strategy for the Tambar oil field.

关键词： Diagenesis Oil-inhibition Microquartz-inhibition Anomalous porosity Permeability

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Water chemistry influences on long-term dissolution kinetics of CdSe/ZnS quantum dots

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Journal of Environmental Sciences 2020年第4期32卷 216-233页

作者： Pooya Paydary philip Larese-Casanova Department of Civil and Environmental Engineering Northeastern UniversityBostonMAUSA

Widespread usage of engineered metallic quantum dots(QDs)within consumer products has evoked a need to assess their fate within environmental systems.QDs are mixed-metal nanocrystals that often include Cd2+which poses a health risk as a nanocrystal or when leached into water.The goal of this work is to study the long-term metal cation leaching behavior and the factors affecting the dissolution processes of mercaptopropionic acid(MPA)capped CdSe/ZnS QDs in aphotic conditions.QD suspensions were prepared in different water conditions,and release of Zn2+and Cd2+cations were monitored over time by size exclusion chromatography-inductively coupled plasm a-mass spectrometry.In most conditions with dissolved 02 present,the ZnS shell degraded fairly rapidly over^1 week,while some of the CdSe core remained up to 80 days.Additional MPA,Zn2+,and Cd2+temporarily delayed dissolution,indicating a moderate role for capping agent detachment and mineral solubility.The presence of H2 O2 and the ligand ethylenediaminetetraacetate accelerated dissolution,while NOM had no kinetic effect.No dissolution of CdSe core was observed when 02 was absent or when QDs formed aggregates at higher concentrations with 02 present.The shrinking particle model with product layer diffusion control best describes Zn2+and Cd2+dissolution kinetics.The longevity of QDs in their nanocrystal form appears to be partly controlled by environmental conditions,with anoxic,aphotic environments preserving the core mineral phase,and oxidants or complexing ligands promoting shell and core mineral dissolution.

关键词： Quantum dots CdSe/ZnS Dissolution kinetics Shrinking particle model Size exclusion chromatography Inductively coupled plasma mass spectrometry

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天府农博园“瑞雪”:互承木构壳体的机器人建构实践

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建筑学报 2023年第10期 62-71页

作者：高伟哲孙童悦袁烽上海创盟国际建筑设计有限公司上海200433 上海建筑数字建造工程技术研究中心上海200092 同济大学建筑与城市规划学院上海200092

梳理介绍了新津天府农博园“瑞雪”展示馆的设计策略和建造过程,作为首个“全机器人预制”的研究型实践,以结构性能化的设计策略为导向、机器人建造为核心,构建出复杂的双曲互承木构壳体,同时以木构机器人、3D打印机器人、FUSense全域... 详细信息

梳理介绍了新津天府农博园“瑞雪”展示馆的设计策略和建造过程,作为首个“全机器人预制”的研究型实践,以结构性能化的设计策略为导向、机器人建造为核心,构建出复杂的双曲互承木构壳体,同时以木构机器人、3D打印机器人、FUSense全域感知数字模拟系统等为代表的智能建造技术,实现建造过程中精确拟合与模块化预制装配,以人机共生的乡村智造彰显后人文建构理念的实际应用,使传统乡村建筑重新焕发生机。

关键词：互承木构壳体结构性能化设计数字建造乡村建设预制装配化可持续建造

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Corrosion Inhibition of Amino Pentadecylphenols (APPs) Derived from Cashew Nut shell Liquid on Mild Steel in Acidic Medium

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Materials Sciences and Applications 2016年第8期7卷 396-402页

作者： Joseph Yoeza Naimani philip Joseph Buchweshaija Alinanuswe Mwakalesi Chemistry Department University of Dar es Salaam Dar es Salaam Tanzania Physical Sciences Department Sokoine University of Agriculture Morogoro Tanzania

In this study, corrosion inhibiting properties of amino pentadecylphenols (APPs) derived from Cashew Nut shell Liquid (CNSL) on mild steel in aerated 0.10 M HCl at 303 K were studied using Electrochemical Impedance Spectroscopy (EIS) and potentiodynamic polarization measurements. Both methods indicated the potential of a mixture of amino pentadecyphenols to serve as a corrosion inhibitor in mild steel in 0.10 M HCl. Corrosion inhibition efficiencies were observed to increase with increase in the inhibitor concentration, with maximum corrosion inhibition of about 98% at inhibitor concentration of 600 ppm. The adsorption of the inhibitor on mild steel surface was found to obey Temkin adsorption isotherm, signifying physical adsorption of the inhibitor molecules on mild steel surface.

关键词： Corrosion Inhibitor Cashew Nut shell Liquid Amino Pentadecylphenols Mild Steel

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Photoluminescence of Ag-In-S/ZnS quantum dots: Excitation energy dependence and low-energy electronic structure

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Nano Research 2019年第7期12卷 1595-1603页

作者： Irina V. Martynenko Anvar S. Baimuratov Florian Weigert Jose X. Soares Lorena Dhamo philip Nickl Ilona Doerfel Jutta Pauli Ivan D. Rukhlenko Alexander V. Baranov Ute Resch-Genger Federal Institute for Materials Research and Testing (BAM) Unter den Eichen 8712205 BerlinGermany ITMO University 49 Kronverksky Pr.St. Petersburg197101Russia University of Porto Rua de Jorge Viterbo Ferreira2284050-313 PortoPortugal Institute of Photonics and Optical Sciences (IPOS) School of PhysicsThe University of SydneyCamperdown 2006NSWAustralia

Cd-free Ⅰ-Ⅲ-Ⅵ group semiconductor quantum dots (QDs) like Ag-ln-S and Cu-ln-S show unstructured absorption spectra with a pronounced Urbach tail,rendering the determination of their band gap energy (Eg) and the energy structure of the exciton difficult.Additionally,the origin of the broad photoluminescence (PL) band with lifetimes of several hundred nanoseconds is still debated.This encouraged us to study the excitation energy dependence (EED) of the PL maxima,PL spectral band widths,quantum yields (QYs),and decay kinetics of AlS/ZnS QDs of j different size,composition,and surface capping ligands.These results were then correlated with the second derivatives of the corresponding absorption spectra.The excellent match between the onset of changes in PL band position and spectral width with the minima found for the second derivatives of the absorption spectra underlines the potential of the EED approach for deriving Eg values of these ternary QDs from PL data.The PL QY is,however,independent of excitation energy in the energy range studied.From the EED of the PL features of the AlS/ZnS QDs we could also derive a mechanism of the formation of the low-energy electronic structure.This was additionally confirmed by a comparison of the EED of PL data of as-synthesized and size-selected QD ensembles and the comparison of these PL data with PL spectra of single QDs.These results indicate a strong contribution of intrinsic inhomogeneous PL broadening to the overall emission features of AlS/ZnS QDs originating from radiative transitions from a set of energy states of defects localized at different positions within the quantum dot volume,in addition to contributions from dimensional and chemical broadening.This mechanism was confirmed by numerically modelling the absorption and PL energies with a simple mass approximation for spherical QDs and a modified donor-acceptor model,thereby utilizing the advantages of previously proposed PL mechanisms of ternary QDs.These findings will pave the road to a deeper understanding of the

关键词： core/shell quantum dot silver indium sulfide defect photoluminescence photoluminescence quantum yield single-dot spectroscopy

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Synthesis of Poly(APP-co-EGDMA) Particles Using Monomers Derived from Cashew Nut shell Liquid for the Removal of Cr(III) from Aqueous Solutions

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Open Journal of Organic Polymer Materials 2014年第1期4卷 29-36页

作者： Joseph Wilson Joseph Yoeza Naimani philip James Epiphan Gabriel Mdoe Chemistry Department University of Dar es Salaam Dar es Salaam Tanzania Department of Chemistry St. John’s University of Tanzania Dodoma Tanzania

This work was aimed at synthesizing Cashew Nut shell Liquid (CNSL) based polymer particles for adsorption of Cr(III) ions from aqueous solutions. Natural CNSL was used as a starting material in synthesizing amino pentadecylphenols (APP). This was achieved through isolating anacardic acid from the CNSL via calcium anacardate procedure, followed by hydrogenation of the alkenyl side chains, and subsequently decarboxylating the product to form 3-pentadecylphenol, which was then nitrated and reduced to a mixture of APP. APP were co-polymerized with ethylene glycol dimethacrylate (EGDMA) to form poly(APP-co-EGDMA) particles. The chemical structures of the synthesized compounds were confirmed by Fourier Transform IR and 1H-NMR. The co-polymer particles were characterized by Scanning Electron Microscopy (SEM) to establish their morphological properties. The prepared co-polymer particles were found to have-NH loading of 46 mmol/g and a maximum adsorption capacity for Cr(III) ions of 16 mg per g of dry polymer particles. The spent polymer particles were recoverable and reusable.

关键词： Cashew Nut shell Liquid (CNSL) Amino Pentadecylphenols (APP) Poly(APP-co-EGDMA)

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THE DESIGN AND CONSTRUCTION OF ALL GLASS STRUCTURES

THE DESIGN AND CONSTRUCTION OF ALL GLASS STRUCTURES

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International Symposium on New Olympics New shell and Spatial Structures

作者： philip WILSON Gennady VASILCHENKO-MALISHEV Malishev Wilson Engineers 96a Inderwick Road London N8 9JY Partner Malishev Wilson Engineers 96a Inderwick Road London N8 9JY Partner

＜正＞INTRODUCTION In the last decade, we have seen a dramatic increase in the use of structural glass in buildings, driven by increasing interest from architects and with client approval. The obvious reason to choose glass is because it is a transparent yet durable material, resistant to the adverse effects of weathering. With the use of all-glass supporting structures and frames, like beams and vertical fins, this increases the transparency even further. The paper outlines the experience gained by the authors from the design and construction of a dozen all-glass structures over the past ten years: from glass stairs and glazed roofs, with supported beams spanning up to 10.0m, to external glass frames that are auto-stable, each structure marks an important step in glass engineering and fabrication.

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Displacement Talbot lithography for nanoengineering of III-nitride materials

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Microsystems & Nanoengineering 2019年第1期5卷 38-49页

作者： Pierre-Marie Coulon Benjamin Damilano Blandine Alloing Pierre Chausse Sebastian Walde Johannes Enslin Robert Armstrong Stephane Vezian Sylvia Hagedorn Tim Wernicke Jean Massies Jesus Zuniga‐Perez Markus Weyers Michael Kneissl philip A.Shields Department of Electrical&Electronic Engineering University of BathBath BA27AYUK Universite Cote d’Azur CNRSCRHEArue B.Gregory06560 ValbonneFrance Ferdinand-Braun-Institut Leibniz-Institut fur HochstfrequenztechnikGustav-Kirchhoff-Str.412489 BerlinGermany Technische Universität Berlin Institute of Solid State Physics10623 BerlinGermany

Nano-engineering III-nitride semiconductors offers a route to further control the optoelectronic properties,enabling novel functionalities and applications.Although a variety of lithography techniques are currently employed to nanoengineer these materials,the scalability and cost of the fabrication process can be an obstacle for large-scale manufacturing.In this paper,we report on the use of a fast,robust and flexible emerging patterning technique called Displacement Talbot lithography(DTL),to successfully nano-engineer III-nitride materials.DTL,along with its novel and unique combination with a lateral planar displacement(D^(2)TL),allow the fabrication of a variety of periodic nanopatterns with a broad range of filling factors such as nanoholes,nanodots,nanorings and nanolines;all these features being achievable from one single mask.To illustrate the enormous possibilities opened by DTL/D2TL,dielectric and metal masks with a number of nanopatterns have been generated,allowing for the selective area growth of InGaN/GaN core-shell nanorods,the top-down plasma etching of III-nitride nanostructures,the top-down sublimation of GaN nanostructures,the hybrid top-down/bottom-up growth of AlN nanorods and GaN nanotubes,and the fabrication of nanopatterned sapphire substrates for AlN growth.Compared with their planar counterparts,these 3D nanostructures enable the reduction or filtering of structural defects and/or the enhancement of the light extraction,therefore improving the efficiency of the final device.These results,achieved on a wafer scale via DTL and upscalable to larger surfaces,have the potential to unlock the manufacturing of nano-engineered III-nitride materials.

关键词： Talbot planar nitride

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基于结构性能的建筑设计简史

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时代建筑 2014年第5期57卷 10-19页

作者：袁烽胡永衡同济大学建筑与城市规划学院高密度人居环境生态与节能教育部重点实验室数字设计研究中心维也纳应用艺术大学

从建筑师的角度来看,基于结构性能的建筑设计的发展过程,按时间顺序可以被划分为三个时代:在静力学图解时代中,由于图解静力学理论的建立和应用,建筑师能够清楚地表达结构概念并试图寻求结构性能的最优方案;在力学建构时代,由于社会经... 详细信息

从建筑师的角度来看,基于结构性能的建筑设计的发展过程,按时间顺序可以被划分为三个时代:在静力学图解时代中,由于图解静力学理论的建立和应用,建筑师能够清楚地表达结构概念并试图寻求结构性能的最优方案;在力学建构时代,由于社会经济需求和结构性能设计的发展,高结构性能的特殊结构原型被广泛应用,但由于方法的不可确定性和不可重复性,建筑师亟需新的设计计算工具辅助:在结构性能生形时代,建筑师充分应用电脑计算及模拟技术,为之前的实践方法和理论注入新的血液,更重要的是,建筑师创造了许多更为科学、准确以及创新的设计方法。文章以建筑视角对基于结构性能的建筑设计的发展历史进行梳理,比较和分析目前的结构基于性能的设计方法,并评估其对当下建筑实践的价值。

关键词：结构性能静力学图解力学建构结构性能生形

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