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BORDER PORt MANZHOULI:URBAN FUNCtION AND SPACE DEVELOPMENt

Chinese Geographical Science 2002年第4期12卷 315-320页

作者： ZHANG Ping-yu,MA Yan-ji,YU Zhen-han(Changchun Institute of Geography,t he Chinese Academy of Sciences,Changchun 130012,P.R.China) Changchun Institute of Geography the Chinese Academy of Sciences Changchun P. R. China

Manzhouli is the largest land port city on the Sino-Russia border,transit cargo through the land port amount -ed to 5.95million tons,transit tour ists were 304500in *** stands at the joint place of China,Mongolia an d Russi-a,faces to Siberia area of Russia,re ceives direct support from the North east China and Bohai Sea Rim Area,and possess-es priorities in geographical location,land port infrastructure,wate r resources,coal resources,touris t resources and great potentiality in economic coop eration with *** future urban function is a key port on the First Eurasia Continen-tal *** Port will keep its first place between China and Russia land transport,and it is forecasted that the transit amount through Manzhouli Port will go up to 10million tons in 2005and 20million tons in *** will be construct-ed to be a trade center of the peripheral area extending to Russia and Mongolia,a key export-oriented processing industri-al zone supported by industries such as export processing industries,export agriculture,trade services,t echnology trad-ing and the other service *** keeps being a well-known touring city for trade,shopping,sightseeing,vocation,local food,recreation and cultural *** build Manzhouli Export Pr ocessing Industry Zone will improve city econom-ic structure,and the main sectors are organic food processing,livestock products processing,garment and f urniture ***,Manzhouli Export Pro cessing Industry Zone will eventually be upgraded to be a border free trad e *** city functional transition will inevitably affect urban spatial restructure and its *** city space transforma-tion will develop as such:one develo pment axis of No.301highway paralle ling with Bin -Zhou(Harbin -Manzhouli)rail-way which cuts through central part o f Manzhouli City,and links Zhalainuoer District with central city;thre e urban units including central city,Zhalainuoer District and Manzhouli Interchange trade Zone;coh

关键词： manzhouli land port city development sino-russia border trade

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StUDIES ON PRIMARY CRYStALLIZAtION OF RAPIDLY QUENCHED Al-Ni-Cu-Nd MEtALLIC GLASS BY USING HIGH RESOLUtION tRASMISSION ELECtRON MICROSCOPY

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Acta Metallurgica Sinica(English Letters) 2003年第5期16卷 407-415页

作者： M.t.Clavaguera-Mora J.Rodriguez-Viejo Y.D.Xiao W.X.Li D.Jacovkis N.Clavaguera GrupdeFisicadeMaterialsI DepartamentdeFisicaUniversitat-AutonomadeBarcelona08193BellaterraSlaain CollegeofMaterialsScienceandEngineering Central-SouthUniversityChangsha410083China Fisicadel‘EstatSolid FacultatdeFisicaUniversitatdeBarcelonaDiagonal64708028BarcelonaSpain

Rapidly solidified Al87Ni7Cu3Nd3 metallic glasses, prepared by using melt spinning, were treated under both isothermal and non-isothermal regime. the amorphous ribbon and the annealed samples were closely examined by means of differential scanning calorimetric, conventional X-ray diffraction and high resolution transmission electron microscopy with selected-area electron diffraction, with special interest in primary crystallization into α-Al nanocrystalline particles, in order to understand structural characteristics of Al-based amorphous/nanocrystalline alloys, and nucleation and grain growth mechanism on the nanometer scale during primary crystallization. the results show that, the as-prepared ribbons are fully amorphous and homogeneous in the micron scale, but contain high density of quenched-in clusters or crystallite embryos. Primary crystallization mainly leads to formation of two-phase mixture of a-Al crystal and residual amorphous phase. the annealed ribbons exposed isother-mally at HOP C for 5, 130 minutes and heated continuously up to less than 310℃ at 40℃ C/min consist of large amount of α-Al fcc crystal nanoparticles dispersed uniformly in an amorphous matrix. However, a very little amount of finer orthorhombic Al3Ni intermetalics particles exist in the annealed ribbons heated up to 310℃. During primary crystallization, the leading kinetic mechanics to impede growth of the α-Al crystal is soft impingement, instead of geometric impingement.

关键词： rapid solidification Al-rich amorphous alloy crystallization nu- cleation and growth mechanism

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PARALLEL ADAPtIVE SIMULAtION OF A PLUNGING LIQUID JEt

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Acta Mathematica Scientia 2010年第2期30卷 522-538页

作者： Azat Yu.Galimov Onkar Sahni Richard t.Lahey Jr. Mark S.Shephard Donald A.Drew Kenneth E.Jansen Rensselaer Polytechnic Institute

this paper is concerned with three-dimensional numerical simulation of a plunging liquid jet. the transient processes of forming an air cavity around the jet, capturing an initially large air bubble, and the break-up of this large toroidal-shaped bubble into smaller bubbles were analyzed. A stabilized finite element method （FEM） was employed under parallel numerical simulations based on adaptive, unstructured grid and coupled with a level-set method to track the interface between air and liquid. these simulations show that the inertia of the liquid jet initially depresses the pool＇s surface, forming an annular air cavity which surrounds the liquid jet. A toroidal liquid eddy which is subse- quently formed in the liquid pool results in air cavity collapse, and in turn entrains air into the liquid pool from the unstable annular air gap region around the liquid jet.

关键词： plunging liquid jet air entrainment two-phase flows level set method parallel adaptive simulation

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Diurnal variation in fecal concentrations of acid-detergent insoluble ash and alkaline-peroxide lignin from cattle fed bermudagrass hays of varying nutrient content

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Journal of Animal Science and Biotechnology 2015年第4期6卷 410-415页

作者： Juvenal Kanani Dirk Philipp Kenneth P Coffey Elizabeth B Kegley Charles P West Shane Gadberry John Jennings Ashley N Young Robert t Rhein Division of Agriculture University of Arkansas Department of Plant and Soil Science Texas Tech University

Background： the effect of time of fecal sampling on the accuracy of acid-detergent insoluble ash （ADIA） and alkaline-peroxide lignin （APL） for the prediction of fecal output （FO） in cattle was evaluated. Eight ruminally cannulated cows （594 _＋ 35.5 kg） were allocated randomly to 4 bermudagrass [Cynodon dactylon （L.） Pers.] hay diets markedly different in crude protein concentration （79-164 g/kg） with 2 replicates per diet for 3 periods. Cows were offered hay individually at 20 g DM/kg of body weight daily in equal feedings at 08：00 and 16：00 h for a 10-d adaptation period followed by 5-d of total fecal collection. Fecal grab samples also were taken each day during the fecal collection period at 06：00, 12：00, 18：00, and 24：00 h either directly from the rectum or from freshly voided feces. Samples were composited within cow and time across the 5 d total fecal collection period. Additionally, forage, ort, and fecal samples were analyzed for concentrations of APL and ADIA. Results： Fecal concentrations of ADIA and APL were not affected by sampling time （P 〉 0.22）, even though diet affected （P 〈 0.01） fecal ADIA and APL concentrations. there were no diet x sampling time interactions （P ≥ 0.60）. Estimates of FO and dry matter digestibility （DMD） from ADIA and APL were not affected （P 〉 0.16） by sampling time or the diet x sampling time interaction （P 〉 0.74）. Estimates of FO and DMD from markers from different sampling times or all different combinations of sampling time were not different （P 〉 0.72） from those of total collection among internal markers. Conclusion： Little variation in concentrations of ADIA and APL in daily fecal excretion across time increases flexibility in fecal grab sampling schedules for predicting FO and DMD.

关键词： Digestibility Fecal sampling time Internal markers Bermudagrass Cattle

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Environmental and Durability Perspective of the Use of Curaua Fiber treated in Mortars

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Journal of Renewable Materials 2022年第9期10卷 2409-2429页

作者： Afonso R.G.de Azevedo Marcelo Nascimento Dirlane do Carmo Markssuel t.Marvila Gustavo de C.Xavier Sergio Neves Monteiro UENF-State University of the Northern Rio de Janeiro LECIV-Civil Engineering LaboratoryCampos dos GoytacazesBrazil UFF-Federal Fluminense University TER-Department of Agricultural EngineeringNiteróiBrazil UENF-State University of the Northern Rio de Janeiro LAMAV-Advanced Materials LaboratoryCampos dos GoytacazesBrazil IME-Military Institute of Engineering Department of Materials ScienceRio de JaneiroBrazil

the use of natural lignocellulosic fibers(NLFs)as a reinforcement mechanism for cementitious composites,such as mortar,has been investigated in the last ***,their application has often been restricted to technological evaluation research.A NLF with great potential the curaua,which after treatment with NaOH solution,proved to be technologically feasible for mortars reinforcement based on cement and *** objective of this research was the comparative evaluation between a traditional mortar,based on cement and lime,with 1:1:6:0.8 ratio of cement:lime:sand:water,and a modified mortar with addition of 2 wt.%treated curaua fiber in cement mass by evaluating environmental and durability *** a curing time for 28 days,environmental assessments were carried out and durability methodologies were *** tests performed were:(i)attack by chlorides and sulfate,(ii)the wetting and drying cycles,and(iii)slake durability *** results showed that the mortar with the addition of curaua fiber presented a similar behavior to the reference mixture,both in terms of environmental and durability *** modified mortar is able to be used in internal and external environments,the latter with some ***,it also contributes to the promotion of sustainable use of curaua fiber.

关键词： Natural lignocellulosic fibers curaua mortar durability environmental aspects

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Interplay of S and As in Mekong Delta sediments during redox oscillations

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Geoscience Frontiers 2019年第5期10卷 1715-1729页

作者： Van t.H. Phan Fabrizio Bardelli Pierre Le Pape Raoul-Marie Couture Alejandro Fernandez-Martinez Delphine tisserand Rizlan Bernier-Latmani Laurent Charlet University Grenoble Alpes CNRSIRDIFSTTARISTerre38000GrenobleFrance Ho Chi Minh City University of technology (HCMUt) Vietnam National UniversityHo Chi Minh City (VNU-HCM)268 Ly Thuong KietDistrict 10Ho Chi Minh CityViet Nam Institute of Nanotechnology (CNR-Nanotec) 00186RomeItaly Institut de Mineralogie de Physique des Materiaux et de Cosmochimie (IMPMC)UMR 7590 CNRS-UPMC-IRD-MNHN4 Place Jussieu75252Paris cedex 05France Département de chimie Université Laval1045 Avenue de la MédecineQuébecQCG1V 0A6Canada Ecole Polytechnique Fédérale de Lausanne (EPFL) e Environmental Microbiology Laboratory (EML) EPFL-ENAC-IIE-EMLStation 6CH-1015LausanneSwitzerland

the cumulative effects of periodic redox cycling on the mobility of As,Fe,and S from alluvial sediment to groundwater were investigated in bioreactor *** particular sediments from the alluvial floodplain of the Mekong Delta River were investigated: Matrix A (14 m deep) had a higher pyrite concentration than matrix B (7 m deep) *** present in matrix B but absent in matrix *** the reactors,the sediment suspensions were supplemented with As(III) and SO4^2-,and were subjected to three full-redox cycles entailing phases of nitrogen/CO2,compressed air sparging,and cellobiose *** differences in As concentration and speciation were observed upon redox *** support the fact that initial sediment composition is the main factor controlling arsenic release and its speciation during the redox ***,a high pyrite content associated with a low SO4^2- content resulted in an increase in dissolved As concentrations,mainly in the form of As(III),after anoxic half-cycles;whereas a decrease in As concentrations mainly in the form of As(V),was instead observed after oxic *** addition,oxic conditions were found to be responsible for pyrite and arsenian pyrite oxidation,increasing the As pool available for *** same processes seem to occur in sediment with the presence of gypsum,but,in this case,dissolved As were sequestered by biotic or abiotic redox reactions occurring in the FeeS system,and by specific physico-chemical condition (***).the contrasting results obtained for two sediments sampled from the same core show that many complexes and entangled factors are at work,and further refinement is needed to explain the spatial and temporal variability of As release to groundwater of the Mekong River Delta (Vietnam).

关键词： Redox oscillation Pyrite oxidation Gypsum dissolution Isotope sulfur Isotope oxygen

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Influence of Heating time of Shea Nuts (vitellariaparadoxa) on Some Chemical Properties of Shea Butter

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World Journal of Engineering and technology 2015年第3期3卷 13-18页

作者： V. t. tame I. Hassan D. t. Gungula Department of Crop Production and Horticulture Modibbo Adama University of Technology Yola Nigeria Department of Agricultural technology College of Agriculture Ganye Adamawa Nigeria

the experiment was conducted in the laboratories of the Departments of Chemistry and Animal Health and Production technology, Adamawa State University, Mubi, Nigeria. the experiment was replicated three times in a Randomized Complete Block Design (RCBD) and consisted of six heating time 30, 60 and 120 minutes boiling, 30, 60 and 120 minutes roasting and one control. Data were collected on acid value, free fatty acid, iodine value, peroxide value, saponification value and unsaponifiable matter. the data collected were analyzed statistically using Generalized Linear Model (GLM) procedure of statistical analysis system (SAS). the means that were significantly different were separated using Least Significant Difference (LSD). the results showed that there were highly significant differences (P ≤ 0.01) among the treatments. the highest Acid Value (AV) of 3.53 and 3.64 were recorded by heating time at 120 minutes of boiling and 120 minutes of roasting. Heating time at 30 minutes of boiling, 30 minutes roasting, 60 minutes boiling and 60 minutes roasting recorded lower Free Fatty Acid (FFA) values of 1.52, 1.55, 1.57 and 1.58, respectively. Heating time at 60 minutes of roasting and 60 minutes of boiling recorded the highest Iodine value (IV) of 43.80 and 43.53, respectively. Based on the results of this study, it can be concluded that heating time of 30 or 60 minutes by boiling or roasting are better than longer heating times for Shea butter extraction.

关键词： Heating time Shea Nut Shea Butter Chemical Properties

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化学文摘服务社录用的中国科学文献

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化学通报 1994年第12期 58-59+33页

作者： Edmund t. King 美国化学文摘服务社，Columbus，USA

化学文摘服务社录用的中国科学文献ＥｄｍｕｎｄＴ．Ｋｉｎｇ（美国化学文摘服务社，Ｃｏｌｕｍｂｕｓ，ＵＳＡ）前言化学文摘服务社（ＣＡＳ）是美国化学会的一个专业组。它是以１９０７年来化学学科中已发表新发现或发明的摘要及索引... 详细信息

化学文摘服务社录用的中国科学文献ＥｄｍｕｎｄＴ．Ｋｉｎｇ（美国化学文摘服务社，Ｃｏｌｕｍｂｕｓ，ＵＳＡ）前言化学文摘服务社（ＣＡＳ）是美国化学会的一个专业组。它是以１９０７年来化学学科中已发表新发现或发明的摘要及索引方式，及时向科技界提供全面而准确的...

关键词：化学文摘中华人民共和国化学学科美国化学会美国化学文摘服务社索引方式商品名称摘要书商化学文献

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信息管理学科课程设置的探讨

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国外情报科学 1992年第3期10卷 36-39,35页

作者： Wilson,t 蒋端方

1引言:信息管理思想的来由信息管理一词是一个相对的新词,其出处并非来自传统的图书馆界,也非来自传统的情报科学界,丽是来目美国联邦政府官方文件管理部门。[第一段]

关键词：信息管理学科课程设置情报学

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ELECtROCHEMICAL PROPERtIES AND MICROStRUCtURE OF Ir-ta-ti MEtAL OXIDE COAtED tItANIUM ANODES

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Acta Metallurgica Sinica(English Letters) 2001年第6期14卷 457-462页

作者： t. Y. Wang, L.K. Xu and G.Z. Chen (Qingdao Branch of Luoyang Ship Material Research Institute, Qingdao 266071, China) Qingdao Branch Luoyang Ship Mat. Res. Inst. Qingdao 266071 China

Ir-ta-ti metal oxide coated titanium anodes prepared by thermal decomposition at different calcination temperatures were characterized by scanning electron microscopy, cyclic voltammetry, and accelerated life test, while the consumption rate of an anode was also measured in seawater. the SEM results indicate that all oxide layers exhibit a cracked-mud morphology influenced by calcination temperature. Voltammetric charge (q), obtained by integration of I-E curve, is proportional to the number of surface active sites, and can be taken as a measure of the active surface area of oxide layer. It is found that q* decreases linearly with the increase of calcination temperature, and reaches a maximum at 450℃. the anode prepared at 500℃ possesses the best anodic stability and the longest service life in 1M H2 SO4 at an anodic current density of 2A/cm2. Owing to good corrosion resistance and low consumption rate in seawater, Ir-ta-ti metal oxide coated titanium anodes belong to insoluble material with excellent electrocatalytic activity, which are outstanding candidates for using as anode in impressed current cathodic protection systems.

关键词： anodic stability accelerated life consumption rate cyclic voltammetry

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