Showing 161 - 180 results of 190 for search '"first principle"', query time: 0.08s Refine Results
  1. 161

    Challenging the ideal strength limit in single-crystalline gold nanoflakes through phase engineering by Tong Zhang, Yuanbiao Tong, Chenxinyu Pan, Jun Pei, Xiaomeng Wang, Tao Liu, Binglun Yin, Pan Wang, Yang Gao, Limin Tong, Wei Yang

    Published 2025-01-01
    “…The maximum strength is reached in HCP nanoflakes thinner than 10 nm. First-principles and molecular dynamics (MD) calculations demonstrate that the mechanical properties arise from the unconventional HCP structure as well as the strong surface effect. …”
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  2. 162

    Mechanisms of Visible Light Photocatalysis in N-Doped Anatase TiO2 with Oxygen Vacancies from GGA+U Calculations by Hsuan-Chung Wu, Yu-Siang Lin, Syuan-Wei Lin

    Published 2013-01-01
    “…We have systematically studied the photocatalytic mechanisms of nitrogen doping in anatase TiO2 using first-principles calculations based on density functional theory, employing Hubbard U (8.47 eV) on-site correction. …”
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  3. 163

    TOMO AKVINIEČIO ŽMOGAUS LAISVĖS TEORIJOS TYRIMAI XX AMŽIUJE (I STRAIPSNIS) by Lina Šulcienė

    Published 2000-01-01
    “…The studies of this type put in question traditional Neothomist view maintaining that Aquinas' ethics is theory of natural law which it the basis of the free human actions, so that man's practical decision is deducible from the first principles of natural law. The second line of investigation, introduced in this article, discusses Aquinas' general theory of freedom and free human activity. …”
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  4. 164

    Nonequilibrium transport and the fluctuation theorem in the thermodynamic behaviors of nonlinear photonic systems by Yang Liu, Jincheng Lu, Zhongfei Xiong, Fan O. Wu, Demetrios Christodoulides, Yuntian Chen, Jian-Hua Jiang

    Published 2025-01-01
    “…Our findings closely align with numerical simulations based on first-principles nonlinear wave equations. In this paper, we seek to deepen the understanding of irreversible nonequilibrium processes and statistical fluctuations in nonlinear many-body photonic systems which will enhance our grasp of collective phenomena of photons and foster a fruitful intersection between optics and statistical physics.…”
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  5. 165

    Structural, Elastic, and Electronic Properties of Antiperovskite Chromium-Based Carbides ACCr3 (A = Al and Ga) by D. F. Shao, W. J. Lu, S. Lin, P. Tong, Y. P. Sun

    Published 2013-01-01
    “…We theoretically investigated antiperovskite chromium-based carbides ACCr3 through the first-principles calculation based on density functional theory (DFT). …”
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  6. 166

    Machine learning-assisted design of Ti–V–Nb–Mo refractory high-entropy alloys with higher ductility and specific yield strength by Yan Li, Junjie Gong, Shilong Liang, Wei Wu, Yongxin Wang, Zheng Chen

    Published 2025-01-01
    “…A dataset of the alloys' performance parameters was established by applying first-principles and molecular dynamics calculations. The combination of the aforementioned dataset with the solid solution strengthening (SSH) model and the D (γs/γusf) parameter enabled the construction of a highly accurate strength-ductility prediction model for the alloys through the use of an XGBoost algorithm. …”
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  7. 167

    Modeling and simulation of seasonal performance of silica-polymethylpentene for diurnal radiative cooling under direct sunlight by G. N. Nwaji, C. R. Oraka, H. O. Okoro, A. C. Okoronkwo, N. V. Ogueke, E. E. Anyanwu

    Published 2025-01-01
    “…A 2D mathematical model of a diurnal radiative cooler was developed from first principles based on thermal energy balance and was parameterized using the climatic data of Owerri, Nigeria, to evaluate the thermal performance of the cooler during the late Harmattan (January), early rainy (April), late rainy (September), and early Harmattan (November) seasons in the study location. …”
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  8. 168

    Realized stable BP-N at ambient pressure by phosphorus doping by Guo Chen, Chengfeng Zhang, Yuanqin Zhu, Bingqing Cao, Jie Zhang, Xianlong Wang

    Published 2025-01-01
    “…Here, on the basis of first-principles simulations, we find that P-atom doping can effectively reduce the synthesis pressure of BP-N and maintain its stability at 0 GPa. …”
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  9. 169

    Electronic Structure and Optical Properties of GaAs Doped with Rare-Earth Elements (Sc, Y, La, Ce, and Pr) by Yongrong Deng, Chunhong Zhang, Xinmao Qin, Wanjun Yan

    Published 2025-01-01
    “…Herein, the electronic structure and optical properties of GaAs doped with rare-earth elements (Sc, Y, La, Ce, and Pr) were evaluated using the first-principles method. Results showed that the lattice constants and cell volume of GaAs increased after doping. …”
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  10. 170

    Danger Is a Signal, Not a State: Bigaagarri—An Indigenous Protocol for Dancing Around Threats to Wellbeing by Phillip Orcher, Victoria J. Palmer, Tyson Yunkaporta

    Published 2025-01-01
    “…The paper connects the first principles of this protocol to literature, then, using code-switching between academic and informal settler and Indigenous voices, it introduces personal lived experience narratives that include utilisation of the participatory and immersive protocol seen in the graphical abstract image to mitigate suicidal ideation. …”
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  11. 171

    Quantum order by disorder is a key to understanding the magnetic phases of BaCo2(AsO4)2 by Sangyun Lee, Shengzhi Zhang, S. M. Thomas, L. Pressley, C. A. Bridges, Eun Sang Choi, Vivien S. Zapf, Stephen M. Winter, Minseong Lee

    Published 2025-01-01
    “…This model, supported by combined first principles calculations and theoretical modeling, quantitatively reproduces our experimental data. …”
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  12. 172

    Pressure Prediction of Electronic, Anisotropic Elastic, Optical, and Thermal Properties of Quaternary (M2/3Ti1/3)3AlC2 (M = Cr, Mo, and Ti) by Liang Sun, Yimin Gao, Yangzhen Liu, Guoliang Wang, Yiran Wang, Wenyan Zhai, Wen Wang

    Published 2016-01-01
    “…The electronic, mechanical, anisotropic elastic, optical, and thermal properties of quaternary (M2/3Ti1/3)3AlC2 (M = Cr, Mo, and Ti) under different pressure are systematically investigated by first-principles calculations. The bonding characteristics of these compounds are the mixture of metallic and covalent bonds. …”
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  13. 173

    Calculation and Analysis of the Structure and Viscosity of B2O3-Regulated CaO-Al2O3-Based Mold Fluxes by Lifeng Chen, Kun Liu, Peng Han, Bin Yang, Lianghua Feng

    Published 2020-01-01
    “…The thermodynamic properties were studied based on the first principles of quantum mechanics. The results show that the formation of stable structures of B-O and O-B-O in the mold fluxes was beneficial to reduce the probability of structural interconnection, degree of polymerization, and viscosity of the molten slag. …”
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  14. 174

    Energetically Consistent Eddy‐Diffusivity Mass‐Flux Convective Schemes: 1. Theory and Models by M. Perrot, F. Lemarié, T. Dubos

    Published 2025-01-01
    “…Abstract This paper presents a self‐contained derivation, from first principles, of a convective vertical mixing scheme based on the Eddy‐Diffusivity Mass‐Flux (EDMF) approach. …”
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  15. 175

    Phase stability, microstructure and thermodynamic properties of NbMoZrTiV lightweight high-entropy refractory alloy by Wenjie Chen, Xinmei Li

    Published 2025-01-01
    “…In this paper, the effects of pressure and temperature on the stability and thermodynamic properties of the NbMoZrTiV LRHEA phase have been investigated using first-principles calculations of density functional theory calculations. …”
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  16. 176

    Design and fabrication of {111}-textured nanotwinned silver coating for enhancing surface wear resistance of depleted uranium by Kunming Yang, Xiaobo Wang, Shengfa Zhu, Yawen Zhao, Qingdong Xu, Yiyun Wei, Chao Lu, Zhiyuan Wen, Tongxiang Fan, Mingyu Gong, Anyi Yin, Wenhua Luo

    Published 2025-01-01
    “…Deposited nanotwinned (NT) silver (Ag), which is relatively “soft” in-plane and “hard” out-of-plane with respect to surface, may serve as wear-resistant coating. In this work, first-principles density functional theory (DFT) calculations were performed to reveal the energetics of possible Ag/α-U interfaces. …”
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  17. 177

    Effect of microstructure and neutron irradiation defects on deuterium retention in SiC by Alex Leide, Weicheng Zhong, Isabel Fernandez-Victorio, Isabel Fernandez-Victorio, Duc Nguyen-Manh, Duc Nguyen-Manh, Takaaki Koyanagi

    Published 2025-02-01
    “…Low energy ion implantation caused a high deuterium release temperature, highlighting the sensitivity of deuterium release behaviour to radiation defect characteristics. First principles calculations have been conducted to identify energetically favourable trapping sites in SiC at the HABcVSi and HTSiVC complexes, and migration barriers between interstitial sites. …”
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  18. 178

    Unveiling the charge density wave mechanism in vanadium-based Bi-layered kagome metals by Yi-Chen Yang, Soohyun Cho, Tong-Rui Li, Xiang-Qi Liu, Zheng-Tai Liu, Zhi-Cheng Jiang, Jian-Yang Ding, Wei Xia, Zi-Cheng Tao, Jia-Yu Liu, Wen-Chuan Jing, Yu Huang, Yu-Ming Shi, Soonsang Huh, Takeshi Kondo, Zhe Sun, Ji-Shan Liu, Mao Ye, Yi-Lin Wang, Yan-Feng Guo, Da-Wei Shen

    Published 2024-09-01
    “…Here, employing micro-focusing angle-resolved photoemission spectroscopy (μ-ARPES) and first-principles calculations, we systematically studied the unique CDW order in vanadium-based bi-layered kagome metals by comparing ScV6Sn6 with its isostructural counterpart YV6Sn6, which lacks a CDW ground state. …”
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  19. 179

    Short and long-range magnetic ordering and emergent topological transition in (Mn1−xNix)2P2S6 by Nasaru Khan, Deepu Kumar, Shantanu Semwal, Yuliia Shemerliuk, Bernd Büchner, Koushik Pal, Saicharan Aswartham, Pradeep Kumar

    Published 2025-02-01
    “…Here, we present an in-depth temperature dependent analysis for the bulk single crystals of two-dimensional (Mn1−xNix)2P2S6 with x = 1, 0.7, 0.3, 0 using the Raman spectroscopy supported by first-principles calculations of the phonon frequencies. …”
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  20. 180

    Kinetic origin of hysteresis and the strongly enhanced reversible barocaloric effect by regulating the atomic coordination environment by Zi-Bing Yu, Hou-Bo Zhou, Feng-Xia Hu, Jian-Tao Wang, Fei-Ran Shen, Lun-Hua He, Zheng-Ying Tian, Yi-Hong Gao, Bing-Jie Wang, Yuan Lin, Yue Kan, Jing Wang, Yun-Zhong Chen, Ji-Rong Sun, Tong-Yun Zhao, Bao-Gen Shen

    Published 2024-10-01
    “…Here, we report a study of the kinetic origin of hysteresis and the enhanced barocaloric effect (BCE) in MnCoGe-based alloys with ~2% nonmagnetic In atoms. First-principles calculations demonstrate that substituting In atoms at Ge sites rather than Co sites results in a lower energy barrier, indicating a narrower hysteresis for the former. …”
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