Showing 741 - 760 results of 1,594 for search '"copper"', query time: 0.05s Refine Results
  1. 741

    Research of the Characteristic of Hydro- viscous Clutch with Different Friction Materials by Ma Ligang, Xiang Changle, Du Minggang, Guo Liuyang

    Published 2016-01-01
    “…It can be found through the test the towing torque of copper- based friction plate is about 2 times of the carbon- based friction plate with the same structure and the temperature of copper- based friction plate is higher than the carbon- based friction plate under the same experimental conditions and the change of friction coefficient with the difference speed is large. …”
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    Article
  2. 742

    Une cachette d’objets de valeur des années 260 apr. J.-C. dans une villa de la cité des Nerviens (Merbes-le-Château, Belgique) by Nicolas Paridaens, Nicolas Authom, Sébastien Clerbois, Marie-Paule Delplancke, Johan van Heesch

    Published 2010-12-01
    “…This copper-allied tinned plaque is remarkable for its rarity in the western provinces as for the high technical degree quality of its decoration. …”
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    Article
  3. 743

    Estimation of Heavy Metals in Multivitamin Tablets by Differential Pulse Anodic Stripping Voltammetry by Kumar Rohit Raj, Shashank Sharma, Sachin Saxena, M. M. Srivastava, Soami P. Satsangi

    Published 2010-01-01
    “…Differential pulse anodic stripping voltammetry (DPASV) was applied for the simultaneous determination of zinc and copper in multivitamin tablet (supradyn and centrum). …”
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    Article
  4. 744

    Harbor water pollution by heavy metal concentrations in sediments by L. Sulistyowati, Y. Yolanda, N. Andareswari

    Published 2023-10-01
    “…Results of the index analysis show that the average value of the pollution factor of copper is −0.177 (low contamination), that of lead is −1.433 (moderate contamination), and that of cadmium is −4.850 (high contamination); the geoaccumulation index value of copper is −5.328. …”
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    Article
  5. 745

    Alginate Production from Alternative Carbon Sources and Use of Polymer Based Adsorbent in Heavy Metal Removal by Çiğdem Kıvılcımdan Moral, Merve Yıldız

    Published 2016-01-01
    “…The polymer was then combined with clinoptilolite, which is a natural zeolite, to remove copper from a synthetic wastewater. Alginate-clinoptilolite beads were efficiently adsorbed copper up to 131.6 mg Cu2+/g adsorbent at pH 4.5 according to the Langmuir isotherm model.…”
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    Article
  6. 746

    Electron Number Density and Coherence Length of Boson-Fermion Pair in HTSC by Abel Mukubwa

    Published 2022-01-01
    “…While most hole doping agents are atoms lighter than copper, many of the electron doping agents are materials heavier than copper. …”
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    Article
  7. 747

    Isotherm Studies for the Sorption of Metal Ions on to Peat by G. Mckay, B. Vong, J.F. Porter

    Published 1998-02-01
    “…The adsorption of five single-component metal ions, namely, copper, cadmium, cobalt, nickel and zinc, on to peat has been studied. …”
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    Article
  8. 748
  9. 749

    Nutritional Status of Children with Attention Deficit Hyperactivity Disorder: A Pilot Study by Joy Y. Kiddie, Margaret D. Weiss, David D. Kitts, Ryna Levy-Milne, Michael B. Wasdell

    Published 2010-01-01
    “…Macronutrient intake and consumption of Low-Nutrient Foods were comparable to population norms; however, 66% were found to be deficient in zinc and 23% in copper. Conclusions. This pilot study reports the food intake and nutrient status of children with ADHD and shows a predisposition for low zinc and copper status in ADHD.…”
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    Article
  10. 750

    Heavy Metal Contamination of Groundwater in the Tea Garden Belt of Darrang District, Assam, India by K. K. Borah, B. Bhuyan, H. P. Sarma

    Published 2009-01-01
    “…A study has been carried out on heavy metal contamination of groundwater with respect to cadmium, manganese, zinc and copper in the tea garden belt of Darrang district, Assam, India. …”
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    Article
  11. 751

    Study on the Mechanism of Sparks Generated Mechanical Friction by He Pan, Yang Zhang

    Published 2022-01-01
    “…Therefore, this research focuses on the temperature of hot surfaces and sparks generated by friction between pure copper, Q235A steel, and TC4 titanium alloy and the grinding wheel. …”
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    Article
  12. 752

    Monitoring N : P Ratio and Cd, Cu, Pb, and Zn Contents in Different Types of Anaerobic Digestates: A Six-Year Study Case by Christina-Luise Roß, Kerstin Nielsen, Jorita Krieger, Marieke Hoffmann, Karen Sensel-Gunke, Frank Ellmer, Timo Kautz

    Published 2020-01-01
    “…Digestates from four biogas plants were therefore continuously analyzed for their contents of phosphorus, nitrogen, cadmium, copper, lead, and zinc over a period of six years. …”
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    Article
  13. 753

    Machine learning using random forest to model heavy metals removal efficiency using a zeolite-embedded sheet in water by N.D. Takarina, N. Matsue, E. Johan, A. Adiwibowo, M.F.N.K. Rahmawati, S.A. Pramudyawardhani, T. Wukirsari

    Published 2024-01-01
    “…Based on the random forest models, the important variables affecting copper removal efficiency using zeolite-embedded sheet were its contents in water, followed by water temperature and potential of hydrogen. …”
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    Article
  14. 754

    Consensus Clustering and Survival-Related Genes of Cuproptosis in Cutaneous Melanoma by Wentao Qin, Fu Gan, Yiji Jike, Mingyang Jiang, Ang Li

    Published 2023-01-01
    “…Compared with patients with high CRG scores, patients with low CRG scores have a significantly higher survival rate. In a word, copper sagging plays a certain role in the progress of CM.…”
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    Article
  15. 755

    A Potential Dubin-Johnson Syndrome Imaging Agent: Synthesis, Biodistribution, and MicroPET Imaging by Jeongsoo Yoo, David E. Reichert, Joonyoung Kim, Carolyn J. Anderson, Michael J. Welch

    Published 2005-01-01
    “…In normal rats, the radioactive copper complex was cleared quickly from the body exclusively through the hepatic pathway. …”
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    Article
  16. 756

    PERFORMANCE EVALUATION OF ETHERNET TRANSMISSION USING M-ARY PULSE AMPLITUDE MODULATION TECHNIQUES by APENA WALIU OLALEKAN, OLASUNKANMI OMOWUMI GRACE, SALAKO ANUOLUWAPO

    Published 2021-01-01
    “…As demand for high speeds in data has increased, copper Ethernet has been integrated to handle these higher speeds. …”
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    Article
  17. 757

    Removal of cobalt and nickel from zinc sulphate solutions using activated cementation by Boyanov B., Konareva V., Kolev N.

    Published 2004-01-01
    “…The influence of different parameters (duration, temperature, zinc dust quantity, concentration of activators - copper and antimony) on the process of activated cementation of Co and Ni has been studied. …”
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    Article
  18. 758

    Preconcentration with 1-Nitroso-2-naphthol Complexes on Dowex MWC-1 Resin: Determination of Cu and Zn at Trace Level in Drinking Water Samples by ICP-AES by A. Demir Mulazimoglu, I. E. Mulazimoglu, E. Ozkan

    Published 2009-01-01
    “…In this study, copper(II) and zinc(II) were quantitatively determined in drinking water using ICP-AES after preconcentration. …”
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    Article
  19. 759

    Design and Construction of An Electric Bell. by Ndyanabo, Donard

    Published 2024
    “…The following were the materials during the construction; soft iron material, connecting wire, hummer, dry cells, nails, pyan, wooden board, and infinitely long copper wire. The infinitely long copper wire was wound on the soft iron material to form an electromagnet. …”
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    Thesis
  20. 760

    Cu<sup>0</sup>-Functionalized, ZIF-8-Derived, Nitrogen-Doped Carbon Composites for Efficient Iodine Elimination in Solution by Jiuyu Chen, Chensheng Gao, Jingwen Chen, Fei Liu, Zhiwen Liu

    Published 2025-01-01
    “…The development of copper-based materials with a high efficiency and low cost is desirable for use in iodine (I<sub>2</sub>) remediation. …”
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    Article