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  1. 2161

    Research and Motion Analysis of Cutting Blade Mechanism of Copper Foil Shearing Machine by Ying Yueming

    Published 2015-01-01
    “…It is always a problem to improve the quality of copper foil shearing in PCB production.In order to research and develop copper foil shearing machine which has international competitiveness,taking the shearing mechanism of copper foil shearing machine designed by Rosenthal company in US as study object,the mechanism principle of shearing mechanism is descriped and the degree of freedom of mechanism is calculated.The motion analysis of shearing mechanism is carried out based on the methods of spatial mechanism kinematics and numerical calculation.Then,the analytic parameter formula of shearing mechanism cut point is deduced.The motion feature of shearing mechanism based on high speed and high cutting quality is proposed through the numerical experimentation and simulation experiment of shearing machine with 1500 copper foil breadth.The movement curve and controllable parameter which affects the performance of mechanism are obtained.The research contents can be taken as reference for the optimization of cutting blade mechanism design parameters.…”
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  2. 2162

    The Effects of Polystyrene Microplastics and Copper Ion Co-Contamination on the Growth of Rice Seedlings by Huiyu Jin, Guohe Lin, Mingzi Ma, Lin Wang, Lixiang Liu

    Published 2024-12-01
    “…Microplastics (MPs) are emerging pollutants of global concern, while heavy metals such as copper ions (Cu<sup>2+</sup>) are longstanding environmental contaminants with well-documented toxicity. …”
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  3. 2163

    Evaluating Copper-Doped Biochar Composites for Improving Wheat Nutrition and Growth in Oxisols by Loren Chisté, Carlos Alberto Silva, Flávio Henrique Silveira Rabêlo, Keiji Jindo, Leônidas Carrijo Azevedo Melo

    Published 2025-01-01
    “…Composites were synthesized from chicken manure (FCM), shrimp shells (FSC), and sewage sludge (FSS), doped with copper sulfate (CuSO<sub>4</sub>5H<sub>2</sub>O) or copper oxide (CuO), and pyrolyzed at 300 °C or 550 °C. …”
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  4. 2164
  5. 2165

    Inteligencia artificial, un asistente para fomentar la compra pública verde by Oscar Expósito-López

    Published 2023-12-01
    Subjects: “…inteligencia artificial; compra pública verde; contratación pública estratégica; condiciones especiales de ejecución; criterios de adjudicación.…”
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  9. 2169

    Synthesis and Catalytic and Biological Activities of Silver and Copper Nanoparticles Using Cassia occidentalis by Manjul Gondwal, Geeta Joshi nee Pant

    Published 2018-01-01
    “…An ecofriendly and green method for the synthesis of silver and copper nanoparticles has developed using aqueous leaves extract of Cassia occidentalis. …”
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  10. 2170

    In Silico Inhibitability of Copper Carbenes and Silylenes against Rhizoctonia solani and Magnaporthe oryzae by Nguyen Thi Thanh Hai, Thanh Q. Bui, Tran Thi Ai My, Huynh Thi Phuong Loan, Tran Thai Hoa, Phan Tu Quy, Nguyen Thi Thu Thuy, Dang Thanh Nhan, Nguyen Thi Ai Nhung

    Published 2021-01-01
    “…Copper lighter tetrylenes are promising for inhibition towards Rhizoctonia solani-based protein PDB-4G9M and Magnaporthe oryzae-based PDB-6JBR in rice. …”
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  11. 2171

    Chemical Immersion Effects on Wear Property of Epoxy Reinforced Copper Powder Composites by Raghad Hamid Hilal

    Published 2022-03-01
    “…Especially the wear resistance by pin-on-disk and hardness properties for neat epoxy composite and (epoxy - copper powder) composite. That has been prepared by hand mixing (weight ratio = 20%). …”
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  12. 2172

    Antibacterial Activity of Copper Nanoparticles Fabricate via Malva Sylvesteris Leaf Extract by Osama Ismail Haji Zebari, Samie Yaseen Sharaf Zeebaree, Aemn Yaseen Sharaf Zeebaree, Hardan Ismail Haji Zebari, Hadeel Ridha Abbas

    Published 2019-08-01
    “…The crystal shape of nanoparticles was confirmed by X-ray diffraction (XRD) at average (20.96 nm) and the peaks correspond to the face centered cubic structure of cooper metal. Effective antiseptic activity of copper nanoparticles determined by measurement of inhibition zone showed against representative microorganism of bacteria (Gram-positive: Clostridium Staph.aureus;) and (Gram-negative: Escherichia col; Pseudomonas; Klebsiella …”
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  13. 2173

    Synthesis and Characterization of Copper Ferrite Nanoparticles for Efficient Photocatalytic Degradation of Organic Dyes by Julia Mazurenko, A. K. Sijo, Larysa Kaykan, Volodymyr Kotsyubynsky, Łukasz Gondek, Antoni Zywczak, Mateusz Marzec, Oleksii Vyshnevskyi

    Published 2025-01-01
    “…Magnetization measurements revealed that the sample exhibited characteristic magnetic parameters of copper ferrite, with a saturation magnetization (Ms) of 23.10 emu/g, a coercivity Hc of 415 Oe, and a remnant magnetization (Mr) of 12.80 emu/g. …”
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  14. 2174

    Early Effects of Long-Term Neurotoxic Lead Exposure in Copper Works Employees by Irina Böckelmann, Eberhard Pfister, Sabine Darius

    Published 2011-01-01
    “…The situation of exposure in a copper works facility in Germany enabled early lead-induced neurotoxic effects to be investigated in the workers. …”
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    Synthesis, Characterization, and Evaluation of Antimicrobial and Antifertility Efficacy of Heterobimetallic Complexes of Copper (II) by Ashu Chaudhary, Anshul Singh

    Published 2017-01-01
    “…Heterobimetallic complexes of the copper with remarkable antimicrobial and antifertility action have been synthesized by the conventional method by reacting CuCl2 and o-phenylenediamine in the methanolic medium forming the mononuclear complex of the type CuC6H8N22Cl2 which was further treated with group 4 or 14 organometallic dichlorides (Ph2M′Cl2, Me2M′Cl2, and Cp2M′′Cl2) [M′ = Sn, Si, and M′′ = Ti, Zr] leading to formation of heterobimetallic complexes. …”
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  19. 2179
  20. 2180

    Dopant Concentration and Effective Atomic Number of Copper-Doped Potassium Borate Glasses by I. Hossain, N. K. Shekaili, H. Wagiran

    Published 2013-01-01
    “…Copper-doped (0.5 mol%) and undoped potassium borate glasses have been prepared by the composition of (100-x)H3BO3 + xK2CO3, where 10 ≤ x ≤ 30 mol % by the traditional melting quenching method. …”
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