نتایج جستجو برای: scannining electron micrograph

تعداد نتایج: 308660  

Journal: :Integrating Materials and Manufacturing Innovation 2017

2018
Christopher J. Russo Richard Henderson

When irradiated in a transmission electron microscope, plunge-frozen, amorphous water ice specimens accumulate a pattern of static charge that changes dynamically as the specimen is irradiated, and which can deflect the transmitted electrons and blur the resultant micrographs. Here we provide a physical description of this charge accumulation and characterise its dynamic behaviour in the contex...

The nanomaterials have important application in different field of science such as biology and pharmacology, which draws the attention of biologists towards this field of study more than before. As the worldwide mortality rate is high due to the pathogens and especially because of the bacteria associated Aeromonas and the antibacterial effect of metal nanoparticles is well known for ce...

Dariush Bastani Hossein Kazemian, Nazila Esmaeili

LTA Zeolite nanoparticles was successfully synthesized from clear solution under controlled conditions using hydrothermal method using tetramethyl ammonium hydroxide as a structural directing agent. The as-synthesized LTA zeolite particles were characterized by powder X-ray Diffraction (XRD) analysis, Scanning Electron Microscopy (SEM), Fourier Transform InfraRed (FT-IR) spectroscopy, </e...

2005
Olga Valenzuela Ignacio Rojas Fernando Rojas Ruiz Luisa Marquez

Recent advances in multimedia and image processing techniques can be utilized to assist pathologists in this respect. In fact, many investigators believe that automation of prostate cancer analysis increases the rate of early detection. In this paper, we will propose an automatic procedure for prostate cancer light micrograph based on soft-computing technique, for image interpretation, with inc...

Journal: :The Dhaka University Journal of Science 2022

Fabrication of environmentally safe C2ZnSnS4 (CZTS) photovoltaic thin films pure kesterite state is crucial. We have preparedCZTS by sol-gel dip-coating process from chloride-based chemicals. After vacuum-annealed at 550°C, the optical andstructural characters were further examined UV–vis spectroscopy, X-ray diffraction (XRD), scanning electronmicroscopy (SEM), and energy dispersive spectroscop...

Journal: :Communications biology 2021

Abstract Particle identification and selection, which is a prerequisite for high-resolution structure determination of biological macromolecules via single-particle cryo-electron microscopy poses major bottleneck automating the steps determination. Here, we present generalized deep learning tool, CASSPER, automated detection isolation protein particles in transmission microscope images. This to...

Journal: :Journal of the American Ceramic Society 2021

Potassium sodium niobate (KNN) thin films are potentially useful for energy harvesting devices and lead-free piezoelectric microelectromechanical systems. This work reports the activation energies nucleation, growth perovskite phase transformation from a 0.5% manganese-doped KNN 2-methoxyethanol-based solution modified with acetylacetone excess alkali precursors. The were annealed in rapid ther...

Journal: :Biophysical journal 1986
P B Moore M Capel M Kjeldgaard D M Engelman

is the density distribution in the image; x, y are coordinates relative to its center of gravity; and p, q are integers; p + q is the order of the moment. By combining these moments, certain invariants can be formed which may be used to describe the image with increasing accuracy as the order of moments included increases (14). Instead of the images themselves, the profiles formed by its moment...

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