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  1. 3261

    Influence of Electron Transfer Mediators in the Pd(II)-Catalyzed Oxidative Carbonylation of Aniline by Andrea Vavasori, Lucio Ronchin, Luca Pietrobon, Sara Bravo

    Published 2025-05-01
    “…Testing several Pd(II) complexes, metal cocatalysts, and promoters, we have found that the [PdCl<sub>2</sub>(dppf)]/FeCl<sub>3</sub>/LiBr = 1/1200/200 (mol/mol) system efficiently catalyzes the carbonylation of aniline to form 1,3–diphenylurea selectively (100%) with a TOF of ca. 1177 h<sup>−1</sup>. …”
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  2. 3262

    Surrounding Rock Stability Classification Method of Coal Roadway Based on In Situ Stress by Yongjie Yang, Gang Huang, Lingren Meng

    Published 2021-01-01
    “…Taking into account the complexity of the classification of surrounding rock, some factors such as the strength of surrounding rock, in situ stress, the main roof first weighting interval, the size of the chain pillar, and the immediate roof backfilled ratio are selected as the evaluation indexes. …”
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  3. 3263

    Adaptive beamforming of massive MIMO based on DoA in high mobility scenarios by Yong LIAO, Yu-feng LI, Xuan-fan SHEN

    Published 2017-06-01
    “…A direction of arrival based (DoA-based) beamforming of massive MIMO was proposed for high-speed railway scenarios.In order to guarantee that the optimal system capacity can be obtained during traveling,an iterative multi-beams scheme was proposed.It aimed to design different beams for different mobile carriage terminals (MCT) respectively.The proposal adaptively selected the number of antennas for each beam,and adaptively designed the number of beams according to system capacity.Moreover,the scheme didn’t need channel state information (CSI) that can reduce system implementation complexity and cost.Numerical results indicate that the proposed scheme is suitable for high-speed scenarios,the system performance can be improved more efficiently compared to conventional methods.…”
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  4. 3264

    Study on the multistage iterative rank-reduced method by GUO Yi1, ZHANG Er-yang1, SHEN Rong-jun2

    Published 2007-01-01
    “…On the background of joint space-time anti-jammer processing for GPS receiver,multistage Wiener filter-ing(MWF)algorithm and auxiliary vector filtering(AVF)algorithm was deeply analyzed as two typical multistage itera-tive rank-reduced method in this article and their immanent relationship was pointed out.A new algorithm was proposed which has a forward recursion on the data level and a backward iterative.Compared with MWF and AVF,the proposed algorithm has a better performance,reduces the computation complexity and selects the filter rank more easily.It suits with practical realization of joint space-time anti-jammer processing for GPS receiver.Numerical simulation demon-strates that the proposed method is effect and efficient.…”
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  5. 3265

    Study on the multistage iterative rank-reduced method by GUO Yi1, ZHANG Er-yang1, SHEN Rong-jun2

    Published 2007-01-01
    “…On the background of joint space-time anti-jammer processing for GPS receiver,multistage Wiener filter-ing(MWF)algorithm and auxiliary vector filtering(AVF)algorithm was deeply analyzed as two typical multistage itera-tive rank-reduced method in this article and their immanent relationship was pointed out.A new algorithm was proposed which has a forward recursion on the data level and a backward iterative.Compared with MWF and AVF,the proposed algorithm has a better performance,reduces the computation complexity and selects the filter rank more easily.It suits with practical realization of joint space-time anti-jammer processing for GPS receiver.Numerical simulation demon-strates that the proposed method is effect and efficient.…”
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    Article
  6. 3266

    Principles of Arranging Independent Appraisal of Competences and Professional Development of Employees in Organization by K. V. Ekimova, S. M. Nechaeva, I. A. Kalinina

    Published 2023-07-01
    “…Thus, results of independent appraisal help project the employee’s profile and make decision concerning arrangement of training and selecting acute subjects. Preliminary independent appraisal of competence possession can provide efficient training of workers, which fosters the development of staff potential and sustainable functioning of then organization in general.…”
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  7. 3267

    A Beam Search Framework for Quantum Circuit Mapping by Cheng Qiu, Pengcheng Zhu, Lihua Wei

    Published 2025-02-01
    “…By iteratively selecting, expanding, and making decisions, high-quality target circuits are generated. …”
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    Article
  8. 3268

    The brain ages optimally to model its environment: evidence from sensory learning over the adult lifespan. by Rosalyn J Moran, Mkael Symmonds, Raymond J Dolan, Karl J Friston

    Published 2014-01-01
    “…Theoretical neurobiology offers a simpler explanation for all of these effects--from a Bayesian perspective, as the brain is progressively optimized to model its world, its complexity will decrease. A corollary of this complexity reduction is an attenuation of Bayesian updating or sensory learning. …”
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  9. 3269

    Comparative analysis and application of novel spectrophotometric approaches and bioassay for fast macrolide quantification in table by Abdelghani Mahmoudi, Silvia Francia

    Published 2025-07-01
    “…Spectrophotometric techniques were based on charge transfer complexation through naphthoquinone derivatives. Reactions were carried out in alkaline medium using 1,2-naphthoquinone-4-sulphonate and phylloquinone, which showed an absorption maximum at 452 and 455 nm, respectively. …”
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  10. 3270

    Recent Developments in the Metal-Catalyzed Synthesis of Nitrogenous Heterocyclic Compounds by Xueguo Zhang, Wenxuan Bi, Zhenyu Cao, Jian Shen, Baohua Chen

    Published 2024-11-01
    “…Transition metal complexes, with their ability to activate and selectively functionalize organic substrates, have revolutionized various areas of synthetic chemistry. …”
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  11. 3271

    NevusCheck: A Dysplastic Nevi Detection Model Using Convolutional Neural Networks by Andreluis Ingaroca-Torres, Lucía Heredia-Moscoso, Alvaro Aures-García

    Published 2025-01-01
    “…Therefore, the research aims to develop a model to diagnose dysplastic nevi using a deep learning network whose classification is based on the pre-trained architecture EfficientNet-B7, which was selected for its high classification accuracy and low computational complexity. …”
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  12. 3272

    Promiscuity in Polyphenol–Protein Interactions—Monitoring Protein Conformational Change upon Polyphenol–Protein Binding by Nano-Differential Fluorimetry (Nano-DSF) by Dorothea Schmidt, Amelie Wohlers, Nikolai Kuhnert

    Published 2025-02-01
    “…As a major advantage, measurements are carried out at a high dilution, avoiding the precipitation of polyphenol–protein complexes, allowing the rapid and efficient acquisition of quantitative and qualitative binding data. …”
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  13. 3273

    On the Need of Angle Diversity Receiver for Downlink NOMA-Based Visible Light Communication Systems by Ahmed Gaafar Ahmed Al-Sakkaf, Maximo Morales-Cespedes

    Published 2025-01-01
    “…Specifically, two methodologies are proposed to calculate the TPA coefficients for ADRs assuming both approaches to manage the combination of photodiodes; select best combining (SBC) and maximum ratio combining (MRC). …”
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  14. 3274

    On the Location of a Constrained k-Tree Facility in a Tree Network with Unreliable Edges by Abdallah W. Aboutahoun, Eman Fares

    Published 2019-01-01
    “…The time complexity of the proposed algorithm is Olkn. Examples are provided to illustrate the performance of the proposed algorithm.…”
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  15. 3275

    Tandem reductive amination and deuteration over a phosphorus-modified iron center by Haifeng Qi, Yueyue Jiao, Jianglin Duan, Nicholas F. Dummer, Bin Zhang, Yujing Ren, Stuart H. Taylor, Yong Qin, Kathrin Junge, Haijun Jiao, Graham J. Hutchings, Matthias Beller

    Published 2025-02-01
    “…Abstract Deuterated amines are key building blocks for drug synthesis and the identification of metabolites of new pharmaceuticals, which drives the search for general, efficient, and widely applicable methods for the selective synthesis of such compounds. …”
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  16. 3276

    Effect of Electron Donor Groups on Optoelectronic Properties of Betalain Dyes: A DFT Study by Melkizedeck Hiiti Tsere, Rene Costa, Geradius Deogratias, Tatiana Pogrebnaya, Alexander Pogrebnoi, Revocatus Machunda, Ohoud S. Al‐Qurashi, Nuha Wazzan, Nambury Surendra Babu

    Published 2025-08-01
    “…The charge density distribution in the complexes indicates appropriate ability of the dyes for charge injection to the semiconductor. …”
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  17. 3277

    Spectrum‐sensing algorithm based on graph feature fusion by Shanshan Wu, Guobing Hu, Bin Gu

    Published 2024-12-01
    “…Thus, compared to existing algorithms, except block range‐ and energy‐detection‐based methods, the proposed algorithm demonstrates the best spectrum‐sensing performance under low SNRs and channel‐fading conditions, while achieving the lowest computational complexity. The proposed approach enables more efficient and accurate spectrum sensing, fostering advancements in communication technologies and defence applications.…”
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    Article
  18. 3278

    Detection of Pear Quality Using Hyperspectral Imaging Technology and Machine Learning Analysis by Zishen Zhang, Hong Cheng, Meiyu Chen, Lixin Zhang, Yudou Cheng, Wenjuan Geng, Junfeng Guan

    Published 2024-12-01
    “…In summary, the combination of HSI and machine learning models enabled an efficient, rapid, and non-destructive detection of pear quality and provided a practical value for quality control and the commercial processing of pears.…”
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    Article
  19. 3279

    New forgery attack on the authenticated cipher SCREAM and iSCREAM by Yu-dan TIAN, Yong-zhuang WEI

    Published 2016-01-01
    “…Authentication encryption algorithms have been widely used in networks security system since these al-gorithms can efficiently provide both privacy and integrity measurement for data transmission. …”
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    Article
  20. 3280

    Mono‐Ethyl‐Phosphonates: Functional Group Masking Strategy to Stabilize and Optimize the Pharmacokinetics of Rare Earth Radiochelates by Jennifer N. Whetter, Axia Marlin, Edith K. Amason, Eduardo Aluicio‐Sarduy, Angus J. Koller, Phuong Nguyen Tran, Kaelyn V. Becker, Jonathan W. Engle, Eszter Boros

    Published 2025-07-01
    “…Spectrophotometric studies reveal reduced thermodynamic stability for [Sc(L2‐Et)] and [Lu(L2‐Et)] when compared with their phosphonate parent complexes. Radiolabeling with 44Sc and 177Lu remains efficient at ≤ 40 °C (155‐906 mCi μmol−1) with corresponding radiochelates remaining >87% and >98% inert in plasma after one isotope half‐life. …”
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