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    First-Principles Calculations to Investigate the Third-Order Elastic Constants and Mechanical Properties of Mg, Be, Ti, Zn, Zr, and Cd by Xiaoqing Yang, Zhenya Meng, Hailin Cao

    Published 2021-01-01
    “…The method of homogeneous deformation combined with first-principles total-energy calculations is employed. The deformation gradient Fij is applied to the crystal lattice vectors ri, and the elastic strain energy can be obtained from the first-principles calculation. …”
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  9. 689

    Hierarchical Newton Iterative Parameter Estimation of a Class of Input Nonlinear Systems Based on the Key Term Separation Principle by Cheng Wang, Kaicheng Li, Shuai Su

    Published 2018-01-01
    “…In order to improve the computation complexity, the key term separation principle is introduced to avoid the redundant parameter estimation. …”
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    Stochastic Maximum Principle for Partial Information Optimal Control Problem of Forward-Backward Systems Involving Classical and Impulse Controls by Yan Wang, Aimin Song, Enmin Feng

    Published 2014-01-01
    “…We derive a maximum principle to give the sufficient and necessary optimality conditions for the local critical points of the classical and impulse controls problem. …”
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    Influence of Secondary Phases in Kesterite-Cu2ZnSnS4 Absorber Material Based on the First Principles Calculation by Wujisiguleng Bao, Masaya Ichimura

    Published 2015-01-01
    “…The influence of secondary phases of ZnS and Cu2SnS3 (CTS) in Cu2ZnSnS4 (CZTS) absorber material has been studied by calculating the band offsets at the CTS/CZTS/ZnS multilayer heterojunction interfaces on the basis of the first principles band structure calculation. The ZnS/CZTS heterointerface is of type I and since ZnS has a larger band gap than that of CZTS, the ZnS phase in CZTS is predicted to be resistive barriers for carriers. …”
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  14. 694

    Administrative and Legal Principles for Determining the Legal Regime of Using Forestry Resources as an Important Component of Nature-Oriented Complex of Ukraine by О. Ye. Volkov

    Published 2019-05-01
    “…It has been concluded that it is necessary to improve administrative and legal principles of the use (protection) of the forestry fund objects of the proper legal regulation of relations in this sphere by developing and adopting the Law of Ukraine “On the Forestry Fund of Ukraine”, codification of the forest legislation of Ukraine, systematic review and introduction of relevant amendments to the Forest Code of Ukraine, updating the legal status of the forestry authorities in regard to ensuring the legal regime of the forestry fund. …”
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