全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
中外文文献  中文文献  外文文献
作者:Prabhat Kumar , Kanhaiya Saw , Uday Kumar ...
来源:[J].Journal of the Brazilian Society of Mechanical Sciences and Engineering(IF 0.234), 2017, Vol.39 (11), pp.4579-4588Springer
摘要:... Microstructures have been assessed by optical microscope and by field emission scanning electron microscope. On the other hand, mechanical behaviour has been analysed in terms of Vickers microhardness and compared with specimens of base materials under different welding c...
作者:Johanna-Iisebel Järvelill , Toivo Kallaste , Anne Kleesment ...
来源:[J].Estonian Journal of Earth Sciences(IF 1.067), 2019, Vol.68 (2), pp.76-87DOAJ
摘要:This paper is a methodological development, where optical microscopy, X-ray diffractometry (XRD) and microanalysis under a scanning electron microscope (SEM) were used for comparative determination of heavy minerals in Quaternary sandy sediments in the Lemme outcrop, southwest...
作者:Nagi M. Iskander , Diaa M. El-Hennawi , Tarek F. Yousef ...
来源:[J].European Archives of Oto-Rhino-Laryngology(IF 1.458), 2017, Vol.274 (6), pp.2461-2468Springer
摘要:To detect ultra-structural changes of Rabbit’s olfactory neuro-epithelium using scanning electron microscope after exposure to cigarette smoking. Sixty six rabbits (Pathogen free New Zealand white rabbits weighing 1–1.5 kg included in the study were randomly assigned into ...
作者:Chuah , Holburn
来源:[J].IETE Journal of Research(IF 0.2), 2013, Vol.59 (3), pp.226-230Taylor & Francis
摘要:Abstract(#br)In this paper, a low-noise transimpedance amplifier for pixelated CMOS photon detector for the use in the scanning electron microscope is presented. From simulation, this optimized circuit exhibits a total input-referred noise of 1.77 × 10−10 A wit...
作者:William F. Mitchell , John S. Villarrubia
来源:[J].Journal of Scientific Computing(IF 1.71), 2019, Vol.80 (3), pp.1700-1715Springer
摘要:Abstract(#br)The intensity variation in a scanning electron microscope is a complex function of sample topography and composition. Measurement accuracy is improved when an explicit accounting for the relationship between signal and measurand is made. Because the determinants of t...
作者:Helena Vlašínová , Vilem Neděla , Biljana Đorđević ...
来源:[J].Protoplasma(IF 2.855), 2017, Vol.254 (4), pp.1487-1497Springer
摘要:... For visualization and identification of abnormalities in meristem development during proliferation and maturation processes, the environmental scanning electron microscope was used. In comparison to the classical light microscope, the non-commercial environmental scanning electron microscope...
作者:Yu. A. Novikov
来源:[J].Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques(IF 0.359), 2017, Vol.11 (4), pp.890-896Springer
摘要:Methods for the calibration of a scanning electron microscope (SEM) operating in the secondary slow electron collection mode from two coordinates, using a single certified size, are described. Calibration is performed with a new test object made of silicon with pitch structures...
作者:M Hatipoglu , C Barutcigil
来源:[J].Nigerian Journal of Clinical Practice(IF 0.263), 2015, Vol.18 (2), pp.213-220Wolters Kluwer
摘要:... Scanning electron microscopy (SEM) analysis was performed to evaluate the morphology and surface deformation of the restorative materials and tooth surfaces. Results: According to the SEM images, the Er, Cr: YSGG laser causes irradiation markings that appear as demineralized ...
作者:A. C. Rios Leite , H. de Souza Lopes
来源:[J].Memórias do Instituto Oswaldo Cruz.(IF 1.363), 1987, Vol.82 (2), pp.219-226DOAJ
摘要:First and second instar larvae of some Sarcophagidae (Diptera) of the tribe Raviniini are described on observations with a scanning electron microscope.Primeiro e segundo "instars" de Sarcophagidae (Diptera) da tribu Raviniini são descritos neste trabalho.
作者:Takashi Ichimura , Yan Ren , P. Kruit
来源:[J].Microelectronic Engineering(IF 1.224), 2014, Vol.113, pp.109-113Elsevier
摘要:Abstract(#br)Recently a multi-beam scanning electron microscope (MBSEM) has been developed, which delivers 196 focused beams to a sample, each of which has around 1 nA. In this article a design for an optical system is described and analyzed which can focus all these beams onto a...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×