Showing 6,641 - 6,660 results of 7,249 for search '"metals"', query time: 0.07s Refine Results
  1. 6641

    Quantification of modal mineralogy in molybdenite-bearing drill-core samples by laser-induced breakdown spectroscopy by Jonnathan Álvarez, Germán Velásquez, Iván Arévalo, Jorge Yáñez, Claudio Sandoval-Muñoz, Benjamín Sepúlveda

    Published 2025-01-01
    “…Quantification of modal mineralogy in drill-core samples is crucial for understanding the geology and metal deportment in a mining operation. This study assesses conventional procedures to quantify modal mineralogy, that includes an initial drill-core logging, followed by petrographic descriptions and SEM-based automated mineralogy analyses performed in selected regions of interest, against a novel approach using laser-induced breakdown spectroscopy (LIBS). …”
    Get full text
    Article
  2. 6642

    Biogenic Synthesis of Silver Nanoparticles (AgNPs) Using Aqueous Leaf Extract of Buchanania lanzan Spreng and Evaluation of Their Antifungal Activity against Phytopathogenic Fungi by Ayushi Purohit, Radheshyam Sharma, R. Shiv Ramakrishnan, Stuti Sharma, Ashish Kumar, Devendra Jain, Himmat S. Kushwaha, Elina Maharjan

    Published 2022-01-01
    “…Plant extracts are of incredible potential in the biosynthesis of metal nanoparticles owing to their bountiful availability, stabilizing, and reducing ability. …”
    Get full text
    Article
  3. 6643

    Pitting Detection and Characterization From Ultrasound Timelapse Images Using Convolutional Neural Networks by Magnus Wangensteen, Tonni Franke Johansen, Ali Fatemi, Erlend Magnus Viggen, Lars Eidissen Haugan

    Published 2024-01-01
    “…Pitting corrosion, a localized form of corrosion leading to cavities and structural failure in metallic materials, requires early detection for effective mitigation. …”
    Get full text
    Article
  4. 6644

    Novel Insights into Surface Energies and Enhanced Gas-Sensing Capabilities of ZnGa<sub>2</sub>O<sub>4</sub>(111) via Ab Initio Studies by Cheng-Lung Yu, Yan-Cheng Lin, Sheng-Yuan Jhang, Jine-Du Fu, Yi-Chen Chen, Po-Liang Liu

    Published 2025-01-01
    “…Particularly notable is the Ga-Zn-O-terminated surface, which presents mixed characteristics influenced by the interplay of oxygen and metallic elements (gallium and zinc), leading to substantial work function changes of +4.97 eV for NO and +1.82 eV for NO<sub>2</sub>, thereby significantly enhancing sensitivity. …”
    Get full text
    Article
  5. 6645

    Determination of Tetracycline in Pharmaceutical Preparation by Molecular and Atomic Absorption Spectrophotometry and High Performance Liquid Chromatography via Complex Formation wi... by Ahlam Jameel Abdulghani, Hadi Hassan Jasim, Abbas Shebeeb Hassan

    Published 2013-01-01
    “…The mole ratio of TC to metal ions was 1 : 1. Maximum peak absorption at λ 425 and 320 nm for the two ions, respectively, was optimized at heating temperature 75°C for 15 minutes at pH = 4 followed by the extraction with ethyl acetate. …”
    Get full text
    Article
  6. 6646

    Novel plant extract-chitosan nanocomposite (SCE/ChNPs) biosensor for trace level arsenic sensing in water samples using quartz crystal microbalance with dissipation monitoring by Miad Ali Siddiq

    Published 2025-01-01
    “…The synergistic combination of plant extract and biodegradable nanoparticles presents a sustainable solution for heavy metal sensing. Further research on long-term stability and field testing could lead to practical tools for monitoring arsenic contamination in water resources, contributing to public health and environmental safety.…”
    Get full text
    Article
  7. 6647

    Aqueous Synthesis of Sub-11 nm Fe-Cu Oxides and Alloy Nanostructures: Structural and Morphological studies by Raquel Zuñiga-Lechuga, Alfredo Vilchis-Nestor, Raúl Morales-Luckie, Victor Sanchez-Mendieta

    Published 2023-10-01
    “…An XPS study performed on these nanostructures allowed for confirming the formation of the FeCu4 alloy, alongside other metallic oxide main phases.…”
    Get full text
    Article
  8. 6648

    Copper Adsorption Using Hydroxyapatite Derived from Bovine Bone by Lingchang Kong, Xin Liu, Guocheng Lv, Tianming Liu, Peijun Zhang, Yuxin Li, Bin Chen, Libing Liao

    Published 2022-01-01
    “…Mining and smelting effluent have resulted in heavy metal-contaminated groundwater. Copper-polluted groundwater poses a severe threat to human health and the ecological environment. …”
    Get full text
    Article
  9. 6649

    Endoscopic ultrasound-guided drainage of postoperative pancreatic fluid collections by Shigeru Nishiyama, Takeshi Hisa, Aki Ego, Shogo Sakata, Yui Ito, Akiharu Kudo, Takahiro Yamada, Shozo Osera, Hideki Fukushima, Shunta Ishizaki, Ryoga Hamura, Masashi Tsunematsu, Kyohei Abe, Yoshihiro Shirai, Shinji Onda

    Published 2025-01-01
    “…The initial drainage methods comprised one nasocystic plastic tube (NPT) and one double-pigtail plastic stent (DPS) for 19 (70.4%) patients, two DPS for four (14.8%) patients, one NPT for three (11.1%) patients, and one lumen-apposing metal stent for one (3.7%) patient. The technical success and clinical success rates were both 100%. …”
    Get full text
    Article
  10. 6650

    A novel approach for brazing MgF2 ceramic to TA15 alloy using AgCu/GH4169/Bi2O3B2O3ZnO composite braze fillers by Liangbo Sun, Yue Wen, Tao Liu, Chunfeng Liu, Tipeng Shan, Xinghong Zhang, Jie Zhang

    Published 2025-03-01
    “…It provides valuable insights into designing highly reliable ceramic/metal joints that demonstrate superior stability and adaptability in specific applications.…”
    Get full text
    Article
  11. 6651

    Unexpected Bone Metastases from Thyroid Cancer by Sandra Gibiezaite, Savas Ozdemir, Sania Shuja, Barry McCook, Monica Plazarte, Mae Sheikh-Ali

    Published 2015-01-01
    “…False positive findings in WBS are frequent and may be due to contamination, perspiration, or folliculitis of the scalp as well as benign lesions such as meningioma, hematoma, cavernous angioma, and metallic sutures. However, metastatic disease should always be considered even if the patient has low risk of distant metastatic disease and correlative images do not support the diagnosis. …”
    Get full text
    Article
  12. 6652

    Complexed Crystal Structure of Saccharomyces cerevisiae Dihydroorotase with Inhibitor 5-Fluoroorotate Reveals a New Binding Mode by Hong-Hsiang Guan, Yen-Hua Huang, En-Shyh Lin, Chun-Jung Chen, Cheng-Yang Huang

    Published 2021-01-01
    “…Dihydroorotase (DHOase) possesses a binuclear metal center in which two Zn ions are bridged by a posttranslationally carbamylated lysine. …”
    Get full text
    Article
  13. 6653

    Assessment of the applied potential of sludge-derived hydrochar in terms of process parameters and product properties by Zhang, Chuang, Wang, Bingyu, Wang, Jixiang, Rong, Shaopeng,  Xie, Huifang, Qu, Hongxia, Feng, Yanfang

    Published 2024-10-01
    “…If the sludge contains a great deal of organic matter and is used as a fuel to generate energy, it can be subjected to a milder hydrothermal intensity like 180–220 °C for 1–2 h. If the heavy metal content in the sludge meets land-use requirements, a more intense hydrothermal intensity may be applied such as 260 °C for 1–4 h. …”
    Get full text
    Article
  14. 6654

    Intrinsically anisotropic 1D NbTe4 for self-powered polarization-sensitive photodetection by Huahu Luo, Fafa Wu, Chaowei He, Wanfu Shen, Chunguang Hu, Weina Zhao, Peng Yu, Guowei Yang

    Published 2024-11-01
    “…NbTe4, a quasi-1D transition metal tetra-chalcogenide, offers significant benefits for polarization-sensitive photodetection due to its structural anisotropy. …”
    Get full text
    Article
  15. 6655

    Cold Plasma Activity Against Biofilm Formation of Prosthetic Joint Infection Pathogens by Christopher Spiegel, Débora C. Coraça-Huber, Michael Nogler, Rohit Arora, David Putzer

    Published 2024-12-01
    “…In this study, we aimed to investigate the ability of CAP to reduce the bacterial load on metal surfaces with varying distances and different plasma compositions below a temperature suitable for in vivo applications. …”
    Get full text
    Article
  16. 6656

    Multi-frequency amplitude-programmable metasurface for multi-channel electromagnetic controls by Wu Rui Yuan, He Shi, Wu Jun Wei, Bao Lei, Cui Tie Jun

    Published 2023-03-01
    “…Varactors loaded on metallic structures of various sizes are switched between operating states to modify the amplitude codes at each frequency channel. …”
    Get full text
    Article
  17. 6657

    Synthesis, Characterization, Semiempirical and Biological Activities of Organotin(IV) Carboxylates with 4-Piperidinecarboxylic Acid by Shabbir Hussain, Saqib Ali, Saira Shahzadi, Saroj K. Sharma, Kushal Qanungo, Muhammad Shahid

    Published 2014-01-01
    “…Organotin (IV) carboxylates with the general formulae R2Sn(Cl)L [R = Me (1), n-Bu (2), Ph (3)] and R3SnL [R = Me (4), Ph (5)] have been synthesized by the reaction of 4-piperidinecarboxylic acid (HL) with KOH and R2SnCl2 (R = Me, n-Bu, Ph)/R3SnCl (R = Me, Ph) in methanol under stirring conditions. The metal ligand binding site, structure, and stability of complexes have been verified by FT-IR, (1H, 13C) NMR, EI-MS technique, and semiempirical study. …”
    Get full text
    Article
  18. 6658

    Polyurethanes as Biomaterials in Medicine: Advanced Applications, Infection Challenges, and Innovative Surface Modification Methods by Drożdż Kamil, Gołda-Cępa Monika, Brzychczy-Włoch Monika

    Published 2025-01-01
    “…To address these issues, innovative PU surface modification methods are being developed, including laser texturing, nanoparticle deposition with antibacterial properties, ion implantation, cold metal spraying, the integration of biodegradable and biocompatible components, and plasma modifications. …”
    Get full text
    Article
  19. 6659

    Biochar and carbon-negative technologies: exploring opportunities for climate change mitigation by Muhammad Ayaz, Sidra Tul Muntaha, Edita Baltrėnaitė-Gedienė, Zita Kriaučiūnienė

    Published 2025-01-01
    “…The main results of the study reveal that BC usage results in a net negative carbon (C) footprint, mitigates heavy metal pollution, and enhances soil and ecosystem health. …”
    Get full text
    Article
  20. 6660

    Novel Organotin(IV) Schiff Base Complexes with Histidine Derivatives: Synthesis, Characterization, and Biological Activity by Ariadna Garza-Ortiz, Carlos Camacho-Camacho, Teresita Sainz-Espuñes, Irma Rojas-Oviedo, Luis Raúl Gutiérrez-Lucas, Atilano Gutierrez Carrillo, Marco A. Vera Ramirez

    Published 2013-01-01
    “…The second structure is spectroscopically described as a tetrahedral tin complex with four donating atoms (one oxygen atom coordinated to the metal and three carbon atoms belonging to the alkyl or aryl substituents), with one molecule of ligand attached. …”
    Get full text
    Article