Showing 1,381 - 1,400 results of 1,594 for search '"copper"', query time: 0.08s Refine Results
  1. 1381

    Design and Detection Performance of Metal Contaminant Sensor with Triple Coil Structure by Changzhi Gu, Zuo Zhang, Shaoxuan Zhang, Hongliang Zhao, Shukui Hu, Wenbo Zhang, Chenzhao Bai, Hongpeng Zhang, Chenyong Wang

    Published 2024-12-01
    “…The experimental results showed that the sensor was able to detect iron particles at 73 µm and copper particles at 220 µm, moreover the obtained signal characteristics are obvious, with high detection sensitivity. …”
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    Article
  2. 1382

    Effects of UV-Vis Irradiation on Vanadium Etioporphyrins Extracted from Crude Oil and the Role of Nanostructured Titania by Debra Jene Kirkconnell Reyes, Andrés García Saravia Ortiz de Montellano, Rudy Amilcar Trejo Tzab, Gerko Oskam, Juan José Alvarado Gil

    Published 2014-01-01
    “…In this paper, the influence of UV-Vis irradiation on vanadium etioporphyrins, extracted from crude oil from Dos Bocas, Tabasco, Mexico, is studied using UV-Vis spectrophotometry in the absence and presence of nanostructured TiO2 or nitrogen-doped TiO2 modified with copper (N-TiO2/Cu). It is shown that the addition of water shortens the time to start photodegradation. …”
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  3. 1383

    Click reaction-induced in situ nanoparticle aggregation for cancer imaging and treatment by Yun Yin, Xiaoyang Liu, Xuemei Li, Gaolin Liang

    Published 2024-09-01
    “…Herein, we introduce and classify in situ nanoparticle aggregation for biomedical imaging and therapeutic applications induced by four types of common click reactions: copper-catalyzed azide–alkyne cycloaddition (CuAAC), strain-promoted azide–alkyne cycloaddition (SPAAC), click condensation between 2-cyanobenzothiazole (CBT) and cysteine (Cys), and inverse electron-demand Diels–Alder (iEDDA). …”
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  4. 1384

    Applications of Organic and Inorganic Amendments Induce Changes in the Mobility of Mercury and Macro- and Micronutrients of Soils by Mercedes García-Sánchez, Adéla Šípková, Jiřina Száková, Lukáš Kaplan, Pavla Ochecová, Pavel Tlustoš

    Published 2014-01-01
    “…Meanwhile, the outcome of these treatments was a decrease of mobile Hg forms as a function of incubation time whereas the contents of magnesium (Mg), potassium (K), iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), and phosphorus (P) were stimulated by the addition of digestate in both soils. …”
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    Article
  5. 1385

    Improvement in Impaired Social Cognition but Not Seizures by Everolimus in a Child with Tuberous Sclerosis-Associated Autism through Increased Serum Antioxidant Proteins and Oxidan... by Kunio Yui, George Imataka, Hitomi Sasaki, Yohei Kawasaki, Tohru Okanshi, Ryoichi Shiroki, Shigemi Yoshihara

    Published 2019-01-01
    “…This study revealed that everolimus treatment improved impaired social cognition with increased serum levels of the copper mediator (Cp) and iron mediator (Tf) via homeostatic control of mTOR activity accompanied by overlap of the oxidant-antioxidant system. …”
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    Article
  6. 1386

    Effects of Exposure to Physical Factors on Homeopathic Preparations as Determined by Ultraviolet Light Spectroscopy by Barbara Marschollek, Mathias Nelle, Martin Wolf, Stephan Baumgartner, Peter Heusser, Ursula Wolf

    Published 2010-01-01
    “…Homeopathic centesimal (c) dilutions, 1c to 30c, of copper sulfate (CuSO4), decimal dilutions of sulfur (S8), 1x to 30x, and controls (succussed potentization medium) were prepared, randomized, and blinded. …”
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  7. 1387

    Micronutrient Intake in a Cohort of Italian Adults with Type 1 Diabetes: Adherence to Dietary Recommendations by Marisa Giorgini, Marilena Vitale, Lutgarda Bozzetto, Ornella Ciano, Angela Giacco, Anna Rivieccio, Ilaria Calabrese, Gabriele Riccardi, Angela A. Rivellese, Giovanni Annuzzi

    Published 2017-01-01
    “…As for minerals, adherence was low for potassium and selenium (0–23%); intermediate for zinc, copper, and magnesium; low and intermediate for calcium in men and women, respectively; and low for iron in women. …”
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  8. 1388

    DETERMINATION OF HEAVY METALS AND ENVIRONMENTAL HEALTH STATUS OF AGRO SOILS IN IKOT ABASI, NIGER DELTA, NIGERIA by Usoro M. Etesin, Iniobong J. Ogbonna

    Published 2023-08-01
    “…The soil samples were air-dried and subjected to heavy metal determination (iron, Fe; cadmium, Cd; lead, Pb; zinc, Zn; copper, Cu; vanadium, V; nickel , Ni; chromium, Cr ; mercury, Hg ) by inductively coupled plasma– optical emission spectrometer (AGILENT 720 ICP-OES). …”
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  9. 1389

    Increased sensitivity in electron–nuclear double resonance spectroscopy with chirped radiofrequency pulses by J. Stropp, N. Wili, N. C. Nielsen, D. Klose

    Published 2025-01-01
    “…We demonstrate on a frozen solution of Cu(II)-tetraphenylporphyrin that the intensity of broad copper and nitrogen ENDOR lines increases up to 9-fold compared to single-frequency RF excitation, thus making the detection of metal ENDOR spectra more feasible. …”
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  10. 1390

    Single-Fed Broadband CP Bidirectional Antenna with Double-Layer Diagonally Aligned Plates for Universal UHF-RFID Applications by Sitthichai Dentri, Khanet Pookkapund, Bancha Luadang, Prayoot Akkaraekthalin, Chuwong Phongcharoenpanich

    Published 2020-01-01
    “…The upper-layer conductor consists of two diagonally aligned rectangular copper plates with a feeding gap at the center, and the lower-layer conductor is of two diagonally adjoined rectangular plates. …”
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    Article
  11. 1391

    Determining the Temporal and Spatial Effects of Human Induced Interventions on Some Water Quality Parameters of Murgul Creek by Şenol Osmanaoğlu, Mehmet Özalp

    Published 2023-01-01
    “…In addition, besides determining the amount of suspended solid particles (SSP) and monthly flow rates, analyses were made for arsenic (As), cadmium (Cd), copper (Cu), iron (Fe), lead (Pb) and zinc (Zn) in water samples for a possible heavy metal pollution caused by mining activities. …”
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    Article
  12. 1392

    Measuring high-efficiency perfect composite vortex beams with reflective metasurfaces in microwave band by Hong Jing, Ni Mengyi, Zhang Zhengping, Hu Zheng-Da, Wang Jicheng, Shen Xiaopeng, Wang Xiong, Li Mengmeng, Khakhomov Sergei

    Published 2024-12-01
    “…In this paper, metal-insulator-metal copper-coin type reflective metasurfaces are proposed to generate perfect composite vortex beams in X-band. …”
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    Article
  13. 1393

    Practical considerations for DNA sensing using Faradaic electrochemical impedance spectroscopy on ENIG PCB electrodes by Shruti Ahuja, Avani Kulkarni, Richa Pandey, Kiran Kondabagil, Siddharth Tallur

    Published 2025-03-01
    “…However, the long measurement time required to perform such EIS measurements down to very low frequencies (typically 0.1Hz) can adversely affect the ENIG PCB due to gold layer degradation and copper corrosion. To overcome these issues, we propose using the constant phase element (CPE) in the electrical equivalent circuit in EIS measurements for DNA sensing. …”
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    Article
  14. 1394

    ELECTROCHEMICAL CORROSION EVALUATION OF SnSb ELECTRODEPOSITED COATINGS by Ana Aline C. Alcanfor, Natalia G. Sousa, Othon S. Campos, Alan S. de Menezes, Edipo S. de Oliveira, Hamilton F. G. de Abreu, Paulo N. S. Casciano, Pedro de Lima Neto, Adriana N. Correia

    Published 2025-01-01
    “…SnxSb(1-x) coatings were electrodeposited from 1ChCl:2EG on copper. The corrosion resistance of the electrodeposits was evaluated in 0.1 mol dm-3 of NaCl. …”
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  15. 1395

    Cu-32.02% Zn-2.30% Pb alloy surface superhydrophobicity induced by an arachidate layer by Aniedi E. Nyong, Godwin J. Udoh, Joachim J. Awaka-Ama, Joshua F. Effiong, Ifiok Ekwere, Clement Obadimu, Pradeep Rohatgi

    Published 2023-11-01
    “…These products existed in various nanostructural forms on the copper alloy surface. The average contact angles of water measured after the chemical modification step were 153.73 ± 7.35 and 144.94 ± 0.78 for the samples modified in 0.005 M arachidic acid for 6 and 12 hours, respectively.…”
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  16. 1396

    The influence of technological parameters of deposition of multi-element ion-plasma coatings on its quality by E. N. Eremin, V. M. Yurov, V. C. Laurynas, A. Sh. Syzdykova

    Published 2019-10-01
    “…The technological parameters of deposition of high-entropy ionplasma coatings based on Kh18N10T alloyed steel by zirconium, copper and aluminum are studied. It has been established that with increasing evaporator arc current, the surface energy of the coating decreases, which is explained by a rapid increase in its thickness, leading to an increase in the dislocation density in the coating being formed. …”
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  17. 1397

    Dust Deposition and Associated Heavy Metal Contamination in the Neighborhood of a Cement Production Plant at Konongo, Ghana by Prince Baffour Awuah, Albert Amatey Adjaottor, Emmanuel Gikunoo, Emmanuel Kwesi Arthur, Frank Ofori Agyemang, Douglas Siaw Baah

    Published 2022-01-01
    “…The heavy metals such as cadmium (Cd), chromium (Cr), copper (Cu), zinc (Zn), and lead (Pb) were measured in a total of 20 soil samples using atomic absorption spectroscopy (AAS). …”
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    Article
  18. 1398

    An analysis of heavy metals contamination and estimating the daily intakes of vegetables from Uganda by Keneth Iceland, Kasozi, Eric, Oloya Otim

    Published 2021
    “…Environmental contamination with elevated levels of copper (Cu), cobalt (Co), iron (Fe), zinc (Zn), lead (Pb), chromium (Cr6þ), cadmium (Cd), and nickel (Ni)—all states of which are found in Uganda—raises health risk to the public. …”
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  19. 1399

    Temporal and Spatial Seasonal Variations in Quality of Gravity Flow Water in Kyanamira Sub-County, Kabale District, Uganda by Hannington, Ngabirano, Denis, Byamugisha, Emmanuel, Ntambi

    Published 2022
    “…Total iron, lead, chromium, copper, zinc, manganese and cadmium were analyzed by atomic absorption spectrometry. …”
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  20. 1400

    Nutritional Composition of Five Varieties of Pap Commonly Consumed in Maroua (Far-North, Cameroon) by Ponka Roger, Bouba Armand Abdou, Fokou Elie, Beaucher Eric, Piot Michel, Leonil Joëlle, Gaucheron Frédéric

    Published 2015-09-01
    “…Minerals (calcium, magnesium, sodium, potassium, iron, zinc, copper and manganese) were determined by atomic absorption spectrophotometry and phosphorus was determined colorimetrically. …”
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