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World Journal of Diabetes 2017年第1期8卷 18-27页

作者： Kristina S Petersen Jennifer b Keogh Peter J Meikle Manohar L Garg Peter M Clifton School of Pharmacy and Medical Sciences University of South Australia baker IDI Heart and Diabetes Institute Nutraceuticals Research Group University of NewcastleCallaghan

AIM To determine the clinical and dietary predictors of common carotid artery intima media thickness(CCA IMT) in a cohort of subjects with type 1 and type 2 diabetes. METHODS Participants with type 1(n = 23) and type 2 diabetes(n = 127) had mean and mean maximum CCA IMT measured using b mode ultrasound. Dietary intake was measured using a food frequency questionnaire. Clinical and dietary predictors of mean and mean maximum CCA IMT were determined using linear regression analysis adjusted for potential confounders. RESULTS The main predictors of mean and mean maximum CCA IMT were age and weight. After multivariate adjustment there were no dietary predictors of CCA IMT. However,in subjects that were not prescribed a lipid lowering medication alcohol consumption was positively associated with CCA IMT after multivariate adjustment. No difference existed in CCA IMT between subjects with type 1 or type 2 diabetes once age was adjusted for. CONCLUSION CCA IMT was predominantly predicted by age and weight in these subjects with diabetes. The finding that CCA IMT was not different between people with type 1 and type 2 diabetes warrants further investigation in a larger cohort.

关键词： Diabetes Carotid intima media thickness Arterial structure Diet Lipidomics Carotenoids

Effect of SnCl2 and SnCl4 precursors on SnSx thin films prepared by ultrasonic spray pyrolysis

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Journal of Semiconductors 2017年第6期38卷 18-23页

作者： Z.Hadef K.Kamli A.Attaf M.S.Aida b.Chouial Laboratoire des Semi-Conducteurs Faculte des Sciences Universite Badji Mokhtar Annaba Algeria Laboratoire de physique des couches minces et applications LPCMA Universite de Biskra Algeria Laboratoire de Couches Minces et Interfaces Faculte des Sciences Universite de Constantine Algeria

Thin films of SnSx,semiconductors,have been successfully synthesized by ultrasonic spray pyrolysis technique,using two precursors namely：tin（II）chloride and tin（IV）chloride,*** solutions were prepared by the dilution of different Sn molarities of the two precursors *** precursor molarities were varied from 0.04 to 0.07 mol/L,whereas that of S was fixed at 0.1 mol/*** present work focuses on the effect of the different precursor’s molarities on the nature and the properties of the prepared thin films in order to optimize the growth conditions.X-ray diffraction analysis reveals that the precursor’s molarities alter the grain size of the prepared films,which varied from 8 to 14 nm and from 12 to 16 nm,according to the used *** films analysis by SEM,shows that the SnS2 films are more dense and smooth than the SnS *** composition of the elements is analysed with an EDX spectrometer,and the obtained result for M（sn）=0：07 mol/L indicates that the atomic ratio of Sn to S is 51.57：48：43 and 36：64 for films synthesized from the first and second precursors *** measurements show that the conductivity behavior depends on the used precursors and their molarities.

关键词： precursors ultrasonic spray tin sulfide semiconductor thin films characterization

A road map to find in 3D printing a new design plasticity for construction e The state of art

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Frontiers of Architectural Research 2023年第2期12卷 337-360页

作者： João Teixeira Cecília Ogliari Schaefer bárbara Rangel Lino Maia Jorge Lino Alves CONSTRUCT Faculty of Engineering(FEUP)University of PortoPortoPortugal School of Arts Communication and HospitalityArchitecture and UrbanismUniversity of the ItajaíValleyItajaíBrazil Faculty of Architecture University of PortoPortoPortugal Faculty of Exact Sciences and Engineering University of MadeiraPortoPortugal INEGI/Faculty of Engineering University of Porto PortoPortugal

Recent years are showing a rapid adoption of digital manufacturing techniques to the construction industry,with a focus on additive *** 3D printing for construction(3DPC)has notably advanced in recent years,publications on the subject are recent and date a growth in 2019,indicating that it is a promising technology as it enables greater efficiency with fair consumption of material,minimization of waste generation,encouraging the construction industrialization and enhancing and accelerating the constructive *** new building system not only gives an optimization of the building process but provides a new approach to the building design *** direct connection between design and manufacturing allows the reduction in the number of the various construction phases *** is opening a new and wide range of options both formal and chromatic in customization,avoiding complex formworks,reducing costs and manufacturing *** creative process has a strict and direct link with the constructive process,straightening design with its ***-based materials lead the way,but new alternatives are being explored to further reduce its carbon *** order to leverage its sustainability and enhance the system capacity,initiatives are being pursued to allow the reduction of the use of *** are taking the first steps in *** and Demolition Waste(CDW)materials are used to substitute natural *** soil is being explored has a structural and aesthetic *** research trends are opening a wider range of possibilities for architecture and design,broadening the spectrum of color,texture,and formal *** concern about textures and colours is not yet evident in many the structures already printed,opening the opportunity for future *** can be done in the mixture and formal design of this building system,“discovering”other raw materials in others *** article aims to make a

关键词： 3D printing Architecture Construction Materials development Textures

T-DNA-Induced Chromosomal Translocations in feronia and anxur2 Mutants Reveal Implications for the Mechanism of Collapsed Pollen Due to Chromosomal Rearrangements

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Molecular Plant 2014年第10期7卷 1591-1594页

作者： Colin Ruprecht[a],, Andrew Carroll[b] Staffan Persson[a],[c], a Max-Planck-Institute for Molecular Plant Physiology Am Muehlenberg 1 14476 Potsdam Germanyb Department of Biology Stanford University Stanford CA 94305 USAc ARC Centre of Excellence in Plant Cell Walls School of Botany University of Melbourne Parkville 3010 Victoria Australia

Dear Editor, Approximately every fifth Arabidopsis T-DNA inser- tion line contains chromosomal translocations caused by the inserted T-DNA （Clark and Krysan, 2010）. Albeit broad use of T-DNA lines for mutant analysis, little is known about the consequences of these chromosomal rearrangements and only a few studies describe chromosomal aberrations in the mutant lines. While plant growth in general is not affected by such chromosomal translocations, defects in gametophyte development have been observed in lines that are heterozygous for the T-DNA insertion （Ray et al., 1997; Curtis et al., 2009）.

关键词： T-DNA插入染色体易位染色体重排突变系体显示苹果属机制花粉

AZ91 Mg-Al合金中γ-Mg_(17)Al_(12)析出相的多重位向关系及{112}_(γ)伪孪晶关系

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金属学报 2002年第7期38卷 709-714页

作者：罗承萍肖晓玲刘江文聂建峰 b.C.Muddle 华南理工大学机械工程学院广州510641 Dept.of Materials Engineering Monash University

应用透射电镜(TEM)研究了时效AZ91 Mg-Al合金中三种形态的γ-Mg_(17)Al_(12)析出相(bcc)的多重位向关系及析出相颗粒间的{112}_(γ)伪孪晶关系.这三种板条状、六棱柱状或短棒状的析出相分别与Mg基体(hcp)保持burgers,Crawley和Porter位... 详细信息

应用透射电镜(TEM)研究了时效AZ91 Mg-Al合金中三种形态的γ-Mg_(17)Al_(12)析出相(bcc)的多重位向关系及析出相颗粒间的{112}_(γ)伪孪晶关系.这三种板条状、六棱柱状或短棒状的析出相分别与Mg基体(hcp)保持burgers,Crawley和Porter位向关系;在同种析出相颗粒之间或异种颗粒之间能形成不具有孪晶结构特征的{112}γ伪孪晶关系.从晶体学角度解释了这种多重位向关系及伪孪晶的生成机制.并从单个析出相与基体间的匹配程度解释了这三种析出相的析出密度存在较大差别的原因.

关键词： Mg-Al合金 γ-Mg_(17)Al_(12)析出相多重位向关系 {112}_(γ)伪孪晶相变

Two synchronous somatostatinomas of the duodenum and pancreatic head in one patient

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World Journal of Gastroenterology 2009年第46期15卷 5859-5863页

作者： Radoje b olovi Slavko V Mati Marjan T Micev Nikica M Grubor Henry Dushan Atkinson Stojan M Latini The First Surgical Clinic Clinical Center of Serbia Surgical Directorate Imperial College School of MedicineSt Mary's HospitalPraed St

Somatostatinomas are extremely rare neuroendocrine tumors of the gastrointestinal tract,f irst described in the pancreas in 1977 and in the duodenum in *** may be functional and cause somatostatinoma or inhibi-tory syndrome,but more frequently are non-functioning pancreatic endocrine tumors that produce somatostatin *** are usually single,malignant,large lesions,frequently associated with metastases,and generally with poor *** present the unique case of a 57-year-old woman with two synchronous non-function-ing somatostatinomas,one solid duodenal lesion and one cystic lesion within the head of the pancreas,that were successfully resected with a pylorus-preserving Whipple's *** secondaries were found in the liver,or in any of the removed regional lymph *** patient had an uneventful recovery,and remains well and symptom-free at 18 mo *** is an extremely rare case of a patient with two synchro-nous somatostatinomas of the duodenum and the *** condition is discussed with reference to the literature.

关键词： Somatostatinoma Duodenal neoplasms Pancreatic neoplasms

SIMULATION OF WELD THERMAL CYCLE USING THE MODEL OF CARbONITRIDE PARTICLES PRECIPITATION

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Acta Metallurgica Sinica(English Letters) 2000年第1期13卷 145-150页

作者： C. b. Cui S. H. Yang Z. Xiong and J. b. Hong (University Navy Engineering, Wuhan, China)

based on the chasteal nucleation theory, the kinetic precipitation model of carbon - nitride particles in weld HAZ is proposed. Using the model,welding simulation technology and the quantitative metallo- graphic analysis,the precipitation transformation temperatue (PTT) curve is *** data from the simulated welds are in good apreement with the value that the PTT curves predicated.

关键词： carbon-nitride simulated weld thermal cycle PTT curve

INFLUENCE OF FIbER COATING ON TENSILE bEHAVIOR OF UNIDIRECTIONAL C/Mg COMPOSITES

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Acta Metallurgica Sinica(English Letters) 1997年第5期10卷 398-402页

作者： Zhang, K. Wang, Y.Q. Zhou, b.L. Zhou, Y.H. Li, H.L. Inst of Metal Research Chinese Acad of Sciences Shenyang China

The mechanical properties and deformation mechanisms of unidirectional carbon fiber reinforced magnesium composites under tensile loading are studied. Two different materials are used as fiber coatings: a single silica and a gradient C/SiC/SiO[sb 2]. The results show that, under the same preparation conditions, composite with the former coating is broken in a non-cumulative mode and its failure stress is rather low. Conversely, the latter coating demonstrates much better efficiency and the corresponding composite is broken in a cumulative mode.

关键词： Metallic matrix composites Carbon fibers Tensile strength Elastic moduli Coatings Silica Deformation Crack propagation Crack initiation Fracture Stresses Strain

Comparison of the Thermomagnetic and Thermal Effects duringNanocrystallization of Amorphous Fe_(76.5-x)Cu_1Nb_xSi_(13.5)b_9 Alloys

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Journal of Materials Science & Technology 1998年第4期14卷 323-326页

作者： b.Varga and Tak■cs(Dept. of Mechanical Engineering Technology Technical University of budapest, H-1111 budapest bertalan L. utca 2., Hungary) A.Lovas and P.Kamasa(Research Institute for Solid State Physics, Hungarian Academy of Sciences, H-1525 budapest, Dept. of Mechanical Engineering Technology Technical University of Budapest Bertalan L.utca 2 H-1111 Budapest Hungary Research Institute for Solid State Physics Hungarian Academy of Sciences P.O.Box 49 H-1525 Budapest Hungary State Key Lab. of RSA Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 China Institute of Materials Science Hungarian Academy of Science P.O.Box 49 H-1525 Budapest Hungary

The results of thermomagnetic (TM) and calorimetric (DSC) measurements have been compared in order to clarify some details of the mechanism of nanophase-formation from Finemet-type precursors with different Nb contents. It was found that the main features of the DSC thermograms (shape, relative separation and amplitude of the exothermic peaks characteristic for the precipitation of the Fe-(Si) solid solution and the transition metal borides) depend mainly on the composition of the precursor glass, and are only slightly affected by the heating rate between 20 and 80 K/min. The amplitude of the uprise of the magnetization in the TM curves (attributed to the precipitation of bcc-Fe(Si) and borides) decreases with increasing Nb-content. The Curietemperature of the precursor glasses. Tc(am1), the remainder amorphous phases, Tc(am2) and the bcc nanophase, Tc(n-Fe) are determined from the thermomagnetic curves. The shape of the TM curves is interpreted on the basis of the reactions describing the crystalIization of the hypo-eutectic Fe-b glasses.

关键词： Comparison of the Thermomagnetic and Thermal Effects duringNanocrystallization of Amorphous Fe b9 Alloys Cu x)Cu1NbxSi

New progress of the miniaturized microwave ion source at Peking University

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Radiation Detection Technology and Methods 2023年第4期7卷 545-549页

作者： S.X.Peng T.H.Ma W.b.Wu b.J.Cui A.L.Zhang Y.X.Jiang Z.Y.Guo J.E.Chen State Key Laboratory of Nuclear Physics and Technology and Institute of Heavy Ion Physics Peking UniversityBeijingChina State Key Laboratory of Particle Detection and Electronics Department of Modern PhysicsUniversity of Science and Technology of ChinaHefei230026China

The generation of plasma in a microwave ion source involves confining electrons using a static magnetic field and energizing them with an electromagnetic field that transmitted into the plasma ***,according to electromagnetics theory,there is always a cut-off size in circular wave guides for a given *** a 2.45 GHz microwave,this dimension is 72 mm,which should theoretically prevent transmission of the microwave into the discharge chamber and no plasma can be *** 2006 Peking University(PKU)has successfully developed a series of permanent magnet 2.45 GHz microwave ion sources(PKU PMECRs)with a discharge chamber less than 50 mm,capable of delivering tens of mA beams for *** explain this anomalous phenomenon,a hybrid discharge heating(HDH)mode that combines surface wave plasma and electron cyclotron heating has been *** HDH mode not only successfully explains PKU PMECRs,but also predicts that the optimized inner diameter of the plasma chamber is 24 mm,which is confirmed by experiments involving different liners in the miniaturized microwave ion source.

关键词： Miniaturized 2.45 GHz ECR source Hybrid discharge mode Hydrogen plasma