Showing 5,481 - 5,500 results of 5,957 for search '"optics"', query time: 0.07s Refine Results
  1. 5481

    Study on the microstructural evolution mechanism of the angular contact ball bearing rings during the quenching and tempering process by Ruijie Gu, Yi Tong, Qiang Wang, Liaoyuan Chen, Ziyang Shang

    Published 2025-01-01
    “…Finally, the microstructure and mechanical properties of the heat-treated rings were obtained by optical microscopy, SEM and hardness tester. The results showed that the microstructure of the inner and outer ring after heat treatment process was cryptocrystalline martensite, and the average sizes of spherical carbides precipitated at grain boundaries were 0.39 μm and 0.38 μm, and corresponding hardnesses were increased to be 62.5 HRC and 62.7 HRC. …”
    Get full text
    Article
  2. 5482

    Development of a New Reporter Gene System-dsRed/Xanthine Phosphoribosyltransferase-Xanthine for Molecular Imaging of Processes Behind the Intact Blood-Brain Barrier by Mikhail Doubrovin, Vladimir Ponomarev, Inna Serganova, Suren Soghomonian, Tadashi Myagawa, Tatiana Beresten, Lyudmila Ageyeva, Michel Sadelain, Jason Koutcher, Ronald G Blasberg, Juri G. Gelovani Tjuvajev

    Published 2003-04-01
    “…We report the development of a novel dual-modality fusion reporter gene system consisting of Escherichia coli xanthine phosphoribosyltransferase (XPRT) for nuclear imaging with radiolabeled xanthine and Discosoma red fluorescent protein for optical fluorescent imaging applications. The dsRed/XPRT fusion gene was successfully created and stably transduced into RG2 glioma cells, and both reporters were shown to be functional. …”
    Get full text
    Article
  3. 5483

    Laser surface melting and heat treatment of Tomilloy nickel-based superalloy as gas turbine transition part after service by Bahareh Mohammadi, Homam Naffakh-Moosavy, Hamed Fatemi

    Published 2025-03-01
    “…The heat treatment was performed at 1100 °C for 2.5 h. Stereography, optical microscopy, and scanning electron microscopy were used to examine the microstructure and phases. …”
    Get full text
    Article
  4. 5484

    Mining Failure Response Characteristics of Stope Floor: A Case of Renlou Coal Mine by Jucai Chang, Dong Li, Kai He

    Published 2020-01-01
    “…Through a comprehensive measurement of ground penetrating radar detection and fixed-point grating optical fibers, the law of floor deformation and failure is analyzed dynamically, and the characteristics of the floor rock deformation response are discussed. …”
    Get full text
    Article
  5. 5485

    Comparison of anterior chamber depth measured by three different anterior segment analysis systems by Han Song, Wei Yang, Chunliu Yang, Qing Sun

    Published 2025-02-01
    “…However, the differences in the measurement of different optical devices should be considered in clinical work, and it is not recommended to interchange them.…”
    Get full text
    Article
  6. 5486

    A review of hyperspectral image analysis techniques for plant disease detection and identif ication by A. F. Cheshkova

    Published 2022-04-01
    “…Hyperspectral analysis is a new subject that combines optical spectroscopy and image analysis methods, which make it possible to simultaneously evaluate both physiological and morphological parameters. …”
    Get full text
    Article
  7. 5487

    Rehabilitation Methods for Patients with Geographic Atrophy due to Age-Related Macular Degeneration and Effects of Rehabilitation on Quality of Life by Damla Erginturk Acar, Figen Batioglu, Aysun Idil, Esra Sahli, Dincer Goksuluk

    Published 2023-01-01
    “…Hyperocular glasses were recommended for 77 patients (98.72%), magnifiers for 15 patients (19.23%), electro-optical devices for 2 patients (2.56%), and telemicroscope for one patient (1.28%). …”
    Get full text
    Article
  8. 5488

    Antithrombin III deficiency and idiopathic intracranial hypertension: a case report by Mansoureh Togha, Yousef Mokary, Elham Jafari

    Published 2025-01-01
    “…As a result, the patient’s papilledema, macular thickness, and nerve fiber layer edema decreased, as observed by fundoscopy and optical coherence tomography. Clinical examination and imaging also showed improvement in the patient’s symptoms. …”
    Get full text
    Article
  9. 5489

    Method for Identifying Abnormal Hot Spots on the Surface of Composite Insulators by LIU Yao

    Published 2024-12-01
    “…Based on the analysis results, the fiber Bragg grating centralized temperature measurement technology is used to deploy the fiber Bragg grating sensor near the composite insulator. The fiber optic dispersion centralized temperature measurement unit is used to calculate the corresponding wavelength offset and temperature change value. …”
    Get full text
    Article
  10. 5490

    Lamellar Body Count With Cell Dyn Emerald And Cell Dyn Ruby Methods On Preterm Birth by Erlinda Widyastuti, Ario Imandiri

    Published 2017-07-01
    “…Conclusion : Lamellar body count with impedance method (Cell Dyn Emerald) is significantly higher than optic method (Cell Dyn Ruby).…”
    Get full text
    Article
  11. 5491

    Analysis of Indicators for Assessing the Risk of Progression from PACS to APAC and the Degree of Intraocular Pressure Elevation in APAC Using AS-OCT by Rumin Zhao, Qiaofang Du, Yunlong Wu, Wenhui Geng, Zijian Zhang, Bojun Zhao

    Published 2024-01-01
    “…The aim of this study is to quantify anterior chamber parameters to provide potential risk indicators for evaluating the progression of primary angle-closure suspect (PACS) eyes to acute primary angle closure (APAC) and the degree of intraocular pressure elevation in patients with APAC utilizing anterior segment optical coherence tomography (AS-OCT). Methods. Tomey CASIA2 AS-OCT was used to quantitatively measure various anterior chamber parameters, including anterior chamber depth (ACD), anterior chamber volume (ACV), lens thickness (LT), lens vault (LV), iris-trabecular contact index (ITC), iris thickness (IT), iris volume (IV), iris curvature (IC), iris area (IA), and iris thickness (IT), in APAC eyes (30 eyes) and contralateral PACS eyes (30 eyes) of 30 patients. …”
    Get full text
    Article
  12. 5492

    Trypsin inhibitor activity in representatives of the genus Hedysarum (Fabaceae): the polyvariance of seasonal dynamics in Southern Siberia by E. V. Zhmud, N. S. Zinner, O. V. Dorogina

    Published 2020-10-01
    “…The research method was based on the spectrophotometric measurement of the optical density in protein substrate (BAPA) decomposition products under the effect of trypsin (at 405 nm). …”
    Get full text
    Article
  13. 5493

    The Improvement of Dry Eye Symptoms after Pinguecula Excision and Conjunctival Autograft with Fibrin Glue by Jinho Jeong, Gabriel M. Rand, Taejung Kwon, Ji-Won Kwon

    Published 2019-01-01
    “…Criteria for pinguecula excision surgery were nasal location, yellowish color, and protrusion of conjunctiva at least 2 times thicker than adjacent normal conjunctiva as measured by anterior segment optical coherence tomography. Our primary outcomes were 3-month postoperative changes in tear film breakup time (TBUT), Schirmer test, and a dry eye symptom score. …”
    Get full text
    Article
  14. 5494

    CLINICAL CHARACTERISTICS OF DEBUT AND RISK FACTORS OF PEDIATRIC MULTIPLE SCLEROSIS by Валерий Иванович Ларькин, Игорь Иванович Ларькин, Татьяна Аркадьевна Морозова, Степан Евгеньевич Аполлонов

    Published 2024-11-01
    “…The most common reasons for referral: optic neuritis (50 %), sensory disorders (45 %) and decreased muscle strength in the extremities (45 %). …”
    Get full text
    Article
  15. 5495

    The Addition of Opuntia ficus-indica Ethanolic Extract to a Skimmed Milk-Based Extender Impacts Ram Sperm Quality by Larbi Allai, Xavier Druart, Pinar Terzioğlu, Noureddine Louanjli, Boubker Nasser, Mehmet Ozturk, Bouchra El Amiri

    Published 2023-01-01
    “…The mineral composition and the sugar and vitamin contents of ETHEX were determined using an inductively coupled plasma optical emission spectrometry (ICP-OES) and HPLC-DAD-RID analytical instruments. …”
    Get full text
    Article
  16. 5496

    Design of an Integrated Model for Video Summarization Using Multimodal Fusion and YOLO for Crime Scene Analysis by Sai Babu Veesam, Aravapalli Rama Satish

    Published 2025-01-01
    “…The system integrates the following advanced technologies: AGMFN for person detection and identity matching which employs multi-head attention to fuse RGB frames, motion data and optical flow. YOLOv8 with Feature Pyramid Networks is used for multiple Scale weapon detection in order to capture smaller, partially occluded objects within cluttered scenes. …”
    Get full text
    Article
  17. 5497

    T4 Phage Displaying Dual Antigen Clusters Against H3N2 Influenza Virus Infection by Shenglong Liu, Mengzhou Lin, Xin Zhou

    Published 2025-01-01
    “…Results: The analysis of the optical density of the target protein bands indicated that each particle could display approximately 179 HA1 and 68 M2e antigen molecules. …”
    Get full text
    Article
  18. 5498

    Changes in Ganglion Cell Complex and Peripapillary Retinal Nerve Fiber Layer after Femtosecond Laser-Assisted Cataract Surgery Compared to Manual Phacoemulsification in Patients Re... by Carmen Sánchez-Sánchez, Laureano A. Rementería-Capelo, Virginia Carrillo, Juan Pérez-Lanzac, Inés Contreras

    Published 2020-01-01
    “…We aimed to determine whether there were differences in the changes produced in the ganglion cell complex (GCC) and peripapillary retinal nerve fiber layer (pRNFL) thickness, as evaluated with optical coherence tomography (OCT), between phacoemulsification and FLACS, after implantation of a trifocal intraocular lens (IOL). …”
    Get full text
    Article
  19. 5499

    A Novel Sustainable Semiconductor/Metal-organic Framework Coated Electret Filter for Simultaneous Removal of PM2.5 and VOCs by Yu Zhang, Zan Zhu, Wei-Ning Wang, Sheng-Chieh Chen

    Published 2023-03-01
    “…The physical characterizations, including size, morphology, crystal structure, optical properties, and surface area for the semiconductor p-BWO nanosheets, p-BWO@MIL and PE-MOFilter were first examined to find out the optimal p-BWO to MIL ratio and coating wt% of p-BWO@MIL particles on the electret filter. …”
    Get full text
    Article
  20. 5500

    Investigating the Properties and Behavior of Ag-Cu-Ti-Sn-%5.1 Zr Filler Metal in Dissimilar Bonding of Alumina to Copper by M. Taheri, Gh. Azimi Roeen, A. Bahrami

    Published 2024-12-01
    “…The microstructure of the joints were assessed using optical and scanning electron microscopes, equipped with energy dispersive spectroscopy and the mechanical properties of the joints were evaluated using the shear strength and the Vickers microhardness tests. …”
    Get full text
    Article