Showing 3,241 - 3,260 results of 4,366 for search '"optics"', query time: 0.08s Refine Results
  1. 3241

    On a novel lapping method for RB-SiC ceramic materials by integration of fixed-abrasive with even-sprayed micro-droplets by Yang Yu, Xuanping Wang, Xiaoguang Guo, Hang Gao

    Published 2025-01-01
    “…In this study, a novel fixed-abrasive spray suspension lapping (FSSL) process is proposed to achieve high-quality and efficient lapping of large-aperture RB-SiC mirrors, which can be integrated with computer controlled optical surfacing (CCOS) technology. With the effects of load force, spray pressure, and grit size on material removal characteristics and surface quality investigated, the results show that the material removal profile avoids center concentration and becomes uniform by virtue of spray suspensions, leading to improvement of surface quality. …”
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  2. 3242

    Experimental investigation and thermodynamic modeling of the Zr-Y system by Bu M.J., Wang P.S., Xu H.H., Liu S.H., Sha C.S., Du Y., Pan F.S., Tang A.T.

    Published 2010-01-01
    “…Based on the critical review of all the available experimental data in the literature, 8 key alloys were prepared by arc melting to investigate the phase equilibria in the Zr-Y system, These alloys, which were annealed at 5 different temperatures (800°C, 1000°C, 1100°C, 1120°C, 1160°C), were analyzed by means of X-ray diffraction, differential scanning calorimetry, optical microscopy and scanning electron microscopy with energy-dispersive X-ray spectroscopy. …”
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  3. 3243

    Preparation of Nickel Nanocatalysts and Application to the Hydrodechlorination of 3-Chlorophenol under Liquid Phase by Thanh Thien Co, Thi Kim Anh Tran, Thi Huong Ly Doan, Thi Duyen Diep

    Published 2021-01-01
    “…These nickel nanoparticles were then loaded on the supports as Ni-X (X = vanadium phosphorus oxides (VPO), TiO2, and ZnO) in high loading yield. The optical properties of these catalysts were characterized by UV-vis spectroscopy, the structure of Ni-X was studied by powder X-ray diffraction (PXRD), the distribution of Ni particles in X was studied by transmission electron microscopy (TEM), and the specific surface area of Ni-X was evaluated by N2 adsorption isotherm analysis at 77 K. …”
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  4. 3244

    Microstructural Evolution during DPRM Process of Semisolid Ledeburitic D2 Tool Steel by M. N. Mohammed, M. Z. Omar, J. Syarif, Z. Sajuri, M. S. Salleh, K. S. Alhawari

    Published 2013-01-01
    “…The microstructures of the samples were investigated using an optical microscope and a scanning electron microscope equipped with an energy dispersive spectroscopy analyser, while X-ray phase analysis was performed to identify the phase evolution and the type of carbides. …”
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  5. 3245

    X-ray phase contrast imaging and diffraction in the laser-heated diamond anvil cell: A case study on the high-pressure melting of Pt by Emma Ehrenreich-Petersen, Bernhard Massani, Thea Engler, Olivia S. Pardo, Konstantin Glazyrin, Nico Giordano, Johannes Hagemann, Daniel Sneed, Timofey Fedotenko, Daniel J. Campbell, Mario Wendt, Sergej Wenz, Christian G. Schroer, Mathias Trabs, R.Stewart McWilliams, Hanns-Peter Liermann, Zsolt Jenei, Earl F. O’Bannon

    Published 2025-02-01
    “…In this paper, we present a novel approach for melting determination at high pressure where time-resolved synchrotron X-ray phase contrast imaging is used to observe the solid to liquid phase transition in laser heated samples in the diamond anvil cell along with simultaneous X-ray diffraction. Optical radiometric temperature measurements are correlated with the observed phase boundaries determined from X-ray phase contrast images and structural information from X-ray diffraction patterns to determine the melting temperature. …”
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  6. 3246

    A novel multiple directional shearing interferometry system with synchronous polarization phase shifting by Yahui Zhu, Ailing Tian, Hongjun Wang, Bingcai Liu, Kai Wang

    Published 2025-01-01
    “…The interferometer’s construction system was experimentally tested using a spherical optical component, and the results were compared with those obtained from ZYGO to verify its accuracy and testing reliability.…”
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  7. 3247

    Micro/Nanofiber with Hollow Silica Nanoparticles Thin-Film for Airborne Molecular Contaminants Real-Time Sensing by Longfei Niu, Guorui Zhou, Xinxiang Miao, Xiaodong Yuan, Rahul Kumar, Hao Liu, Yilan Jiang, Xinshu Zou, Hai Zhou, Haibing Lü

    Published 2018-01-01
    “…A novel chemical sensing approach detecting airborne molecular contaminants (AMCs) or compounds is demonstrated by using single-mode optical microfibre (OMF) coated with hollow silica nanoparticles (HSNs). …”
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  8. 3248

    The Role of MR Enterography in Assessing Crohn’s Disease Activity and Treatment Response by Matthew P. Moy, Jenny Sauk, Michael S. Gee

    Published 2016-01-01
    “…With the introduction of molecule-targeted biologic agents into the clinical setting for CD and their potential to reverse the inflammatory process, MRE is increasingly utilized to evaluate disease activity and response to therapy as an imaging complement to clinical indices or optical endoscopy. New and emerging MRE techniques, such as diffusion-weighted imaging (DWI), magnetization transfer, ultrasmall superparamagnetic iron oxide- (USPIO-) enhanced MRI, and PET-MR, offer the potential for an expanded role of MRI in detecting occult disease activity, evaluating early treatment response/resistance, and differentiating inflammatory from fibrotic strictures. …”
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  9. 3249

    Neural Network-Based Analysis of Flame States in Pulverised Coal and Biomass Co-Combustion by Żaklin Grądz, Waldemar Wójcik, Baglan Imanbek, Bakhyt Yeraliyeva

    Published 2025-01-01
    “…There are various methods for diagnosing the combustion process, and one of them is based on a fibre-optic system for monitoring changes in flame intensity. …”
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  10. 3250

    Synthesis of Nitrogen-Doped ZnS with Camellia Brushfield Yellow Nanostructures for Enhanced Photocatalytic Activity under Visible Light Irradiation by Gang-Juan Lee, Chi-Lun Hong, Valentina Batalova, Gennady Mokrousov, Jerry Wu

    Published 2013-01-01
    “…Thermal decomposition of the semisolid was carried out under nitrogen conditions at 500°C for 2 hours, and a series of nitrogen-doped ZnS photocatalysts were produced by controlling inflow flow rate of nitrogen at 15–140 mL/min. Optical characterizations of the synthesized N-doping ZnS substantially show the shifted photoabsorption properties from ultraviolet (UV) region to visible light. …”
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  11. 3251

    Clustering of X-Ray-Selected AGN by N. Cappelluti, V. Allevato, A. Finoguenov

    Published 2012-01-01
    “…It was first established from the clustering of sources making the CXB that the source spatial distribution resembles that of optical QSO. It then became evident that the distribution of X-ray AGN in the Universe was strongly reflecting that of Dark Matter. …”
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  12. 3252

    Kinetic investigation of AISI 304 Stainless Steel boronized in indirect heated fluidized bed furnace by Topuz P., Çiçek B., Akar O.

    Published 2016-01-01
    “…Morphologically and typically examinations of borides formed on the surface of steel samples were studied by optical microscope, scanning electron microscope (SEM) and X-Ray diffraction (XRD). …”
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  13. 3253

    Measurement of wettability and surface roughness for metrology and quality control in microfluidics by Daugbjerg Thomas Schrøder, Crouzier Loïc, Delvallée Alexandra, Ogheard Florestan, Pecnik Christina, Romieu Kevin, Saraiva Fernanda, Batista Elsa

    Published 2025-01-01
    “…To quantify wettability, an optical laboratory setup was used to measure liquid drop contact angles of three liquids on a microfluidic surface. …”
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  14. 3254

    Basic Violet Decolourization Using Alginate Immobilized Nanozirconium Tungestovanadate Matrix as Cation Exchanger by M. F. Elkady, H. Shokry Hassan, Eman M. El-Sayed

    Published 2015-01-01
    “…The SEM and TEM images of the prepared zirconium tungestovanadate identified that it was prepared in homogeneous structure with spherical shape in average diameter 22 nm. However, the optical microscope image of the composite matrix confirms the good distribution of nanozirconium tungestovanadate into the polymeric matrix. …”
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  15. 3255

    Decomposition of Bis(N-benzyl-salicydenaminato)zinc (II) Complex for the Synthesis of ZnO Nanoparticles to Fabricate ZnO-Chitosan Nanocomposite for the Removal of Iron (II) Ions fr... by Thokozani Xaba, Patli Phillia Mongwai, Mahadi Lesaoana

    Published 2019-01-01
    “…The preparation of bis(N-benzyl-salicydenaminato)zinc (II) complex and the synthesis of zinc oxide nanoparticles via the thermal decomposition of zinc complex together with the fabrication of ZnO-chitosan nanocomposites for the removal of iron (II) ions from wastewater is reported. The optical properties of the synthesized nanoparticles showed band edges that are red-shifted in wavelengths when the decomposition temperature was increased. …”
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  16. 3256

    Photocatalytic Decomposition of Amoxicillin Trihydrate Antibiotic in Aqueous Solutions under UV Irradiation Using Sn/TiO2 Nanoparticles by Robab Mohammadi, Bakhshali Massoumi, Mohammad Rabani

    Published 2012-01-01
    “…The effects of Sn-doping on the crystal structure, surface area, adsorption properties, pore size distribution, and optical absorption properties of the catalysts were investigated. …”
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  17. 3257

    Rethinking the Key Factors for the Generalization of Remote Sensing Stereo Matching Networks by Liting Jiang, Feng Wang, Wenyi Zhang, Peifeng Li, Hongjian You, Yuming Xiang

    Published 2025-01-01
    “…To improve the generalization ability of stereo matching networks on cross-domain data from different optical sensors and scenarios, in this article, we are dedicated to studying the key training factors from three perspectives. 1) When selecting a training dataset, prioritize data with similar regional target distribution as the test set, rather than relying on data from the same sensor. 2) Regarding the training modes, unsupervised methods generalize better than supervised methods. 3) We devised an unsupervised early stop strategy to help preserve the best model based on the pretrained weights. …”
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  18. 3258

    Synthesis, Hirshfeld Surfaces and Characterization of Diethanolaminium 3,5-dinitrosalicylate single crystal for NLO application by B Shanmuga Priya, D. Rajan Babu

    Published 2025-01-01
    “…NMR studies detected the different Carbon and Hydrogen atoms in distinct chemical environments. The optical studies suggest that the obtained crystal shows low absorption in the 450––750 nm region with 2.55 eV corresponding to direct bandgap. …”
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  19. 3259

    Housing Complexity Alters GFAP-Immunoreactive Astrocyte Morphology in the Rat Dentate Gyrus by Garrick Salois, Jeffrey S. Smith

    Published 2016-01-01
    “…In order to assess morphological changes among astrocytes of the rat dentate gyrus, piSeeDB was used to optically clear 250 μm sections of tissue labeled using GFAP immunohistochemistry. …”
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  20. 3260

    Corrosion properties of aluminized 16Mo3 steel by Karpe B., Prijatelj K., Bizjak M., Kosec T.

    Published 2023-01-01
    “…Electrochemical corrosion testing included measuring open circuit potential (EOCP), linear polarization resistance (LPR), potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) in potassium phosphate buffer (KH2PO4, pH = 7). Optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDS) were used for surface layer microstructure characterization before and after corrosion tests. …”
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