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Chinese Science Bulletin 1999年第15期44卷 1419-1423页

作者： M.J.Le Bas r.N.Wilson r.Branson L.S.Campbell T.C.Williams P.Henderson Department of Geology University of Leicester Leicester LE1 7RH UKDepartment of Geology University of Leicester Leicester LE1 7RH UKDepartment of Geology University of Leicester Leicester LE1 7RH UKThe Natural History Museum London SW7 5BD UKThe Natural History Museum London SW7 5BD UKThe Natural History Museum London SW7 5BD UK

Ba-rEE fluorcarbonate minerals from a carbonatite dyke at Bayan Obo, Inner Mongolia, North China, are first reported in this contribution, in which chemical composition, rare earth element (rEE) patterns, and intergrowth relationships for these minerals have been investigated. Syntactic intergrowth or syntaxy between cebaite and cordylite, as well as cordylite and huanghoite were observed. This syntactic texture resulted from the variation of chemical composition of crystallizing agents for those minerals that crystallized directly from carbonatite magmas. It is worth noting that rEE patterns of the Ba-rEE fluorcarbonate minerals in the dyke are similar to those of the corresponding minerals from the ore hosted dolomite marble of the Bayan Obo giant rEE-Nb-Fe mineral deposit, which implies their relation in origin.

关键词： rare earth elements (rEE) cebaite huanghoite cordylite syntaxy carbonatite Bayan Obo.

Diagnostic Classification of Normal Persons andCancer Patients by Using Neural NetworkBased on Trace Metal Contents in Serum Samples

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Chemical research in Chinese Universities 2001年第2期17卷 153-158页

作者： ZHANG Zhuo-yong, HONG Zhe, ZHOU Hua-lan and LIU Si-dong (Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. r. China Chemical Engineering Department, Dandong College, Dandong 118003, P. r. China) 东北师范大学吉林长春 130024 丹东职业技术学院辽宁丹东 118003

Artificial neural network with the back-propagation (BP-ANN) approach was applied to the classification of normal persons and various cancer patients based on the elemental contents in serum samples. This method was verified by the cross-validation method. The effects of the net- work parameters were investigated and the related problems were discussed. The samples of 72, 42, and 52 for lung, liver, and stomach cancer patients and normal persons, respectively, were used for the classification study. About 95% of the samples can be classified correctly. There- fore, the method can be used as an auxiliary means of the diagnosis of cancer.

关键词： Artificial neural network Classification Trace element Cancer

A review of conventional and renewable biodiesel production

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Chinese Journal of Chemical Engineering 2021年第12期34卷 1-17页

作者： P.Vignesh A.r.Pradeep Kumar N.Shankar Ganesh V.Jayaseelan K.Sudhakar Department of Mechanical Engineering Indira Institute of Engineering and TechnologyTiruvallurIndia Department of Mechanical Engineering Dhanalakshmi College of EngineeringChennaiIndia Department of Mechanical Engineering Kingston College of EngineeringVelloreIndia Department of Mechanical Engineering Prathyusha Engineering CollegeChennaiIndia Faculty of Mechanical and Automotive Engineering Technology Universiti Malaysia Pahang26600 PekanPahangMalaysia Automotive Engineering Centre Universiti Malaysia Pahang26600 PekanPahangMalaysia

The need for sustainable fuels has resulted in the production of renewables from a wide range of sources,in particular organic fats and *** use of biofuel is becoming more widespread as a result of environmental and economic *** efforts have been made to substitute fossil fuels with green *** molecules extracted from processed animal fats and organic plant materials are considered alternatives for the use in modern engine *** different methods have been adopted for converting esters in vegetable oils/animal fats into compounds consistent with petroleum products,namely the transesterification and the hydro-processing of ester bonds for the production of *** review paper primarily focuses on conventional and renewable biodiesel feedstocks,the catalyst used and reaction kinetics of the production process.

关键词： Biofuel Methy esters from fatly acids renewable diesel Kinetics Catalyst Transesterification

Physical and damping properties of kenaf fibre filled natural rubber/thermoplastic polyurethane composites

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Defence Technology（防务技术） 2020年第1期16卷 29-34页

作者： A.M.Noor Azammi S.M.Sapuan Mohamad r.Ishak Mohamed T.H.Sultan Advanced Engineering Materials and Composite research Centre(AEMC) Department of Mechanical and Manufacturing EngineeringUniversity Putra Malaysia43400UPM SerdangSelangorMalaysia Automotive Engineering Technology Section Universiti Kuala Lumpur Malaysian France Institute(UniKL-MFI)43650Bandar BaruBangiSelangorMalaysia Laboratory of Biocomposite Technology Institute of Tropical Forestry and Forest Products(INTROP)Universiti Putra Malaysia43400UPM SerdangSelangorMalaysia Department of Aerospace Engineering Universiti Putra Malaysia43400UPM SerdangSelangorMalaysia

The paper presents the investigation of the effect of alkaline treatment of sodium hydroxide(NaOH) on physical and dynamic mechanical analysis(DMA) viscoelastic properties of kenaf fibre filled natural rubber(Nr)/thermoplastic polyurethane(TPU) *** treated kenaf fiber,Nr and TPU were weighed and proportioned according to the required compositions and were blended using hot mixed Brabender *** polymer composites were then fabricated using the hot press to form a sample *** sample was cut and prepared and water absorption,density,thickness swelling and DMA tests were *** far as physical properties are concerned,composites with the highest Nr amount of shows the best results,which indicates good fiber bonding *** polymer composites with the highest amount of TPU shows the highest damping properties at high temperature.

关键词： Kenaf fiber Alkaline treatment Thermoplastic polyurethane Natural rubber Dynamic mechanical analysis

Comprehensive insights into the thermal and mechanical effects of metallic glasses via creep

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Journal of Materials Science & Technology 2022年第4期99卷 39-47页

作者： Z.r.Xu J.C.Qiao J.Wang E.Pineda D.Crespo School of Mechanics Civil Engineering and ArchitectureNorthwestern PolytechnicalUniversityXi’an 710072China State Key Laboratory of Solidification Processing Northwestern PolytechnicalUniversityXi’an 710072China Department of Physics Barcelona Research Center in Multiscale Science and TechnologyInstitute of Energy TechnologiesUniversitat Politècnica de CatalunyaBarcelona 08019Spain

Evolution of deformation and relaxation behaviors of a prototypical Cu_(46)Zr_(46)A_(l8)metallic glass was explored by extensive creep tests under both physical aging and cyclic *** insights into the microstructure-induced dynamic heterogeneity which accommodates creep deformation were successively revealed via experimental measurements and spectral *** annihilation of local defects within metallic glass with increasing annealing time and cyclic numbers was observed through the reduction of amplitude in both activation energy spectra and relaxation-time spectra,which were also accompanied by an ascending value of β_(KWW).It is further found that the corresponding deformation units within the metallic glass do not disappear permanently,but are recoverable over the course of cyclic *** apparent suppressed relaxation process can be gradually alleviated with increasing resuming time between two consecutive cycles,behaving differently from physical aging,which indicates a notable discrepancy between thermal treatment and mechanical treatment.

关键词： Metallic glasses Creep Physical aging Cyclic loading relaxation-time spectrum

ON DISTrIBUTIVE MODULES AND LOCALLY DISTrIBUTIVE rINGS

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Chinese Annals of Mathematics,Series B 1991年第1期12卷 26-32页

作者： K.r.Fuller 薛卫民 Department of Mathematics University of Iowalowa CityIowaU.S.A. Department of Mathematics Fujian Normal UniversityFuzhouFujianChina.

Distributive modules over artinian rings are characterized via module diagrams,andit is shown that a left artinian ring is(two-sided)locally distributive in case its leftindecomposable injective modules and projective modules are *** latter resultis used to show that a locally distributive artinian ring and the endomorphism ring of itsminimal cogenerator have identical diagrams.

关键词： projective identical sided latter rings locally maximal 任尹 algebra indeed

Development of Low Carbon Microalloyed High Strength Ultra-Thin Cast Strip Products Produced by the Castrip~ Process With Excellent Strength-Ductility Properties

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Journal of Iron and Steel research International 2011年第S1期18卷 846-850页

作者： C.r. Killmore K.r. Carpenter H.r. Kaul D.G. Edelman J.M. Cairney S.P. ringer J.G. Williams P.C. Campbell W.N. Blejde BlueScope Steel Five Islands Road Pt Kembla 2500 Australia Nucor Steel Indiana 4537 S. Nucor rd. Crawfordsville IN 47933 USA Australian Centre for Microscopy and Microanalysis University of Sydney NSW 2006 Australia Castrip LLC1915 rexford rd. Charlotte NC 28211 USA

The CASTrIP* process produces a range of high strength Ultra-thin Cast Strip (UCS) products (380-550 MPa) in thicknesses between 0.9 mm and 1.5 mm, which is very challenging to produce via conventional hot and cold rolled processing routes. The twin roll CASTrIP process fully exploits the hardenability and strengthening potential of Nb in a low C-Mn-Nb-V microalloyed steel type. Significant microstructural strengthening from solute Nb was obtained, even at low microalloying levels, as well as modest Mn additions, through enhancing the hardenability and further strengthening was obtained in coated products by exploiting age hardening during processing on a continuous hot dip galvanising line. Atom probe tomography and TEM determined that Nb was retained in solid solution and subsequent age hardening resulted from the formation of Nb and V rich nanosized particles. Age hardening was achieved without loss of ductility producing galvanised strip with an excellent strength-ductility combination (Y.S. >600 MPa, T.E. >10%).

关键词： strip casting microalloying niobium ntom probe tomography age hardening high strength CASTrIP Process

Effect of deposition conditions on the physical properties of Sn_xS_y thin films prepared by the spray pyrolysis technique

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Journal of Semiconductors 2011年第11期32卷 31-38页

作者： M.r.Fadavieslam N.Shahtahmasebi M.rezaee-roknabadi M.M.Bagheri-Mohagheghi Nanotechnology research Center Department of PhysicsFaculty of Basic SciencesFerdowsi University of MashhadMashhadIran School of Physics Damghan University

Tin sulfide thin films （Snx Sy） with an atomic ratio of y/x = 0.5 have been deposited on a glass substrate by spray pyrolysis. The effects of deposition parameters, such as spray solution rate （r）, substrate temperature （Ts） and film thickness （t）, on the structural, optical, thermo-electrical and photoconductivity related properties of the films have been studied. The precursor solution was prepared by dissolving tin chloride （SnC14, 5H2O） and thiourea in propanol, and SnxSy thin film was prepared with a mole ratio of y/x = 0.5. The prepared films were characterized by X-ray diffraction （XrD）, scanning electron microscopy （SEM） and UV-vis spectroscopy. It is indicated that the XrD patterns of SnxSy films have amorphous and polycrystalline structures and the size of the grains has been changed from 7 to 16 nm. The optical gap of SnxSy thin films is determined to be about 2.41 to 3.08 eV by a plot of the variation of （αhv）2 versus h v related to the change of deposition conditions. The thermoelectric and photo-conductivity measurement results for the films show that these properties are depend considerably on the deposition parameters.

关键词： thin film tin sulfide spray pyrolysis photoconductivity

Influence of nickel addition on the microstructure and mechanical properties of Al2O3–5vol%ZrO2 ceramic composites prepared via precipitation method

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International Journal of Minerals,Metallurgy and Materials 2019年第7期26卷 908-914页

作者： Betül Kafkasl?o?lu Y?ld?z Hüseyin Y?lmaz Yahya Kemal Tür Department of Materials Science and Engineering Gebze Technical University

The aim of this work was to investigate the microstructure and mechanical properties of 1vol%-Ni-added yttria-stabilized zirconia (YSZ) toughened alumina composites. First, Ni powders were heterogeneously precipitated in an alumina–zirconia powder mixture suspended in water;the prepared specimens were then pressureless sintered at 1550°C/2 h in a 90vol%Ar/10vol% H2 atmosphere. The structure of phases and microstructure of the composites were characterized by X-ray diffraction and scanning electron microscopy, respectively. Mechanical characterization of the specimens was carried out through Vickers hardness, Vickers indentation toughness, and three-point flexural bending tests. The fine Ni particles were homogeneously dispersed throughout the alumina matrix because of the employed processing method. Furthermore, hardness and toughness values were found to increase by 8% and 50%, respectively, with Ni addition, whereas the relative densities and flexural strength values were found to remain unchanged.

关键词： alumina zirconia ceramic matrix microstructure hardness strength toughness

Longwave infrared multispectral image sensor system using aluminum-germanium plasmonic filter arrays Noor E

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Nano research 2023年第7期16卷 10018-10025页

作者： Karishma Shaik Bryce Widdicombe Dechuan Sun Sam E John Dongryeol ryu Ampalavanapillai Nirmalathas ranjith r Unnithan Department of Electrical and Electronic Engineering University of MelbourneParkvilleVIC 3010Australia Department of Biomedical Engineering University of MelbourneParkvilleVIC 3010Australia Department of Infrastructure Engineering University of MelbourneParkvilleVIC 3010Australia

A multispectral camera records image data in various wavelengths across the electromagnetic spectrum to acquire additional information that a conventional camera fails to *** the advent of high-resolution image sensors and color filter technologies,multispectral imagers in the visible wavelengths have become popular with increasing commercial viability in the last ***,multispectral imaging in longwave infrared(LWIr,8-14μm)is still an emerging area due to the limited availability of optical materials,filter technologies,and high-resolution *** from LWIr multispectral cameras can capture emission spectra of objects to extract additional information that a human eye fails to capture and thus have important applications in precision agriculture,forestry,medicine,and object *** this work,we experimentally demonstrate an LWIr multispectral image sensor with three wavelength bands using optical elements made of an aluminum(Al)-based plasmonic filter array sandwiched in germanium(Ge).To realize the multispectral sensor,the filter arrays are then integrated into a three-dimensional(3D)printed wheel stacked on a low-resolution monochrome thermal *** prototype device is calibrated using a blackbody and its thermal output has been enhanced with computer vision *** applying a state-of-theart deep learning method,we have also reconstructed multispectral images to a better spatial ***,our work demonstrates a versatile spectral thermography technique for detecting target signatures in the LWIr range and other advanced spectral analyses.

关键词： infrared plasmonics germanium(Ge) aluminum(Al) thermal optics longwave infrared(LWIr)multispectral system