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Showing 3,241 - 3,260 results of 3,373 for search 'complex selection (coefficient OR efficient)', query time: 0.20s Refine Results
  1. 3241

    Thinned Virtual Array for Cramer Rao Bound Optimization in MIMO Radar by Xia Li, Buhong Wang

    Published 2021-01-01
    “…As an important performance indicator of DOA estimation, Cramer–Rao Bound (CRB) is closely connected to the array configuration of the system. To reduce the complexity of the system and improve CRB performance at the same time, in this paper, the virtual array of MIMO radar is designed directly by selecting outputs from matched filters at the receive side. …”
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  2. 3242

    Algorithm for solution of multicriterion problem of production planning of pipes and shaped products by K. V. Zakharchenkov, Zh. A. Mrochek, T. V. Mrochek

    Published 2019-02-01
    “…One of the modern directions of increase in economic efficiency of the enterprise is a production planning automation, including the automated scheduling of production. …”
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  3. 3243

    Households willingness to pay for improved solid waste management by S. Akhtar, A.S. Ahmad, M.I. Qureshi, S. Shahraz

    Published 2017-04-01
    “…Economic development, urbanization and improved living standards in cities have contributed to increase in the amount and complexity of solid waste produced. The present study was conducted in the residential area of main Boulevard Gulberg, Lahore to determine the present methods and efficiency of current solid waste management facility and to estimate the willingness of the selected households to pay for the improvement of solid waste management through questionnaire survey. …”
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  4. 3244

    A Novel Adaptive Independent Component Analysis Method for Multi-Channel Optically Pumped Magnetometers’ Magnetocardiography Signals by Shuang Liang, Jiahe Qi, Junhuai He, Yikang Jia, Aimin Wang, Ting Zhao, Chaoliang Wei, Hongchen Jiao, Lishuang Feng, Heping Cheng

    Published 2025-04-01
    “…With the gradual maturation of optically pumped magnetometer (OPM) technology, the use of OPMs to acquire weak magnetocardiography (MCG) signals has started to gain widespread application. Due to the complexity of magnetic environments, MCG signals are often subject to interference from various unknown sources. …”
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  5. 3245

    Dosimetric comparison of VMAT plans in preoperative short-course rectal radiotherapy by Qiong Zhou, Qi Wang, Yongwu Li, Chong Shen, Xiaonan Sun

    Published 2024-12-01
    “…We assessed SCRT plans using volumetric-modulated arc therapy (VMAT) with Halcyon and Infinity medical linear accelerators (Linacs) and compared the plan quality and delivery efficiency across all cases. Thirty patients who underwent preoperative SCRT for LARC at the hospital were randomly selected. …”
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  6. 3246

    Evaluation of Intrusion Detection Systems in Cyber Security using Fuzzy OffLogic and MCDM Approach by Zhengrui Yang

    Published 2025-06-01
    “…In this study, thirteen widely used IDS models are assessed using a multi-criteria evaluation framework across four key dimensions: detection accuracy, resource efficiency, scalability, and false positive rate. The goal is to support informed, datadriven decision-making for stakeholders such as policymakers, IT administrators, and security analysts when selecting an appropriate IDS. …”
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  7. 3247

    Improved SLM algorithm for PAPR reduction in OFDM system by Ce JI, Wenjing ZHU, Ying WEI, Dianxia JIA

    Published 2018-04-01
    “…In order to reduce the peak to average power ratio (PAPR) of the conventional selective mapping (SLM) algorithm,decrease the transmission of side-band information,and improve the spectral efficiency in the orthogonal frequency division multiplexing (OFDM) system,the TL-SLM algorithm based on the conversion matrix and the chaotic sequence was proposed firstly.Although the TL-SLM algorithm could effectively decrease the transmission of side-band information,the reduction of PA P R was limited.To solve this problem,an improved TL-SLM algorithm based on the rotation vector was proposed,which was the TR-SLM algorithm.TR-SLM algorithm introduced the rotation vector to generate more time-domain alternative signals to further reducing the PA P R.The performance analysis shows that although the TL-SLM algorithm and the TR-SLM algorithm increase the complexity a little,the PA P R performance is effectively improved and the transmission of side-band information is greatly reduced.…”
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  8. 3248

    Early Warning for the Construction Safety Risk of Bridge Projects Using a RS-SSA-LSSVM Model by Gang Li, Ruijiang Ran, Jun Fang, Hao Peng, Shengmin Wang

    Published 2021-01-01
    “…This overcame the problem of multiple early warning factors and reduced the complexity of the subsequent prediction model. Then, the LSSVM with the strongest nonlinear modelling ability was selected to build the bridge construction early-warning model and adopted the SSA to optimize the LSSVM parameter combination, improving the early warning accuracy. …”
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  9. 3249

    Designing a Model for Enhancing Appropriate Organizational Culture in Educational and Medical Centers by Fariba Ansari, Yousef Namvar, Azam Rastgoo, Tooran Soleimani

    Published 2025-05-01
    “…Introduction: Organizational culture is a key factor in improving service quality, increasing patient satisfaction, and enhancing organizational efficiency in educational and medical centers. The present study aimed to design a comprehensive model for enhancing the organizational culture in such institutions, considering the complexity of these centers and the pivotal role of culture in their performance. …”
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  10. 3250

    Generalized Singular Value Decomposition-Based Secure Beam Hybrid Precoding for Millimeter Wave Massive Multiple-Input Multiple-Output Systems by Boqing Chen, Lijun Yang, Meng Wu

    Published 2025-04-01
    “…In a hybrid precoding system, the low-complexity GSVD-Sparsity algorithm can achieve a spectral efficiency close to that of the GSVD-based scheme in a fully digital system while maintaining anti-eavesdropping capabilities.…”
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  11. 3251

    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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  12. 3252

    The Equal-Time Waypoint Method: A Multi-AUV Path Planning Approach That Is Based on Velocity Variation by Chenxin Yin, Kai Shi, Hailong Wang

    Published 2025-04-01
    “…In collaborative operations of multiple autonomous underwater vehicles (AUVs), the complexity of underwater environments and limited onboard energy make environmental adaptation and energy efficiency critical metrics for evaluating path quality. …”
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  13. 3253

    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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  14. 3254

    Catalytic peptide-based coacervates for enhanced function through structural organization and substrate specificity by David Q. P. Reis, Sara Pereira, Ana P. Ramos, Pedro M. Pereira, Leonor Morgado, Joana Calvário, Adriano O. Henriques, Mónica Serrano, Ana S. Pina

    Published 2024-10-01
    “…Our findings highlight the potential of a single peptide to induce coacervate formation, selectively recruit substrates, and mediate catalysis, enabling a simple design for low-complexity, single peptide-based compartments with broad implications. …”
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  15. 3255

    A Novel -Inspired Routing Protocol for Wireless Sensor Networks by Mingchuan Zhang, Changqiao Xu, Jianfeng Guan, Ruijuan Zheng, Qingtao Wu, Hongke Zhang

    Published 2013-06-01
    “…There is a tradeoff between routing efficiency and energy equilibrium for sensor nodes in wireless sensor networks (WSNs). …”
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  16. 3256

    Comparative Assessment of Functional and Morphological Markers in Guinea Pig (<i>Cavia porcellus</i>) Oocytes Collected at Different Estrous Cycle Phases by Jorge X. Samaniego, José L. Pesántez, Fernando P. Perea, Andrea P. Pazmiño, Jorge B. Dután, Salvador Ruiz

    Published 2025-07-01
    “…These findings indicate that both intrinsic (e.g., morphological quality) and extrinsic (e.g., estrous cycle stage) factors modulated oocyte competence. Selecting oocytes based on integrated morphological and physiological criteria may improve the efficiency of IVM protocols in this species.…”
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  17. 3257

    A Review of Traditional and Advanced MPPT Approaches for PV Systems Under Uniformly Insolation and Partially Shaded Conditions by Mustafa Sacid Endiz, Göksel Gökkuş, Atıl Emre Coşgun, Hasan Demir

    Published 2025-01-01
    “…Existing research clearly demonstrates that the advanced techniques exhibit superior efficiency in comparison to traditional methods, although at the cost of increased design complexity and higher expenses. …”
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    Article
  18. 3258

    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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  19. 3259

    Preprocessing optimization algorithm based on partial channel information feedback in wideband OFDM systems by WANG Xia1, ZHANG Guo-mei1, XUE Tao2

    Published 2011-01-01
    “…To mitigate inter-block interference(IBI) and inter-carrier interference(ICI) in an orthogonal frequency divi-sion multiplexing(OFDM) system,pre-processing approaches at transmitters based on full channel state information(CSI) had been proposed,the performance improved and receiver simplied.However,feeding full CSI back would oc-cupy scarce bandwidth and was impractical sometimes for the systems with high real-time demand.To deal with this problem,a preprocessing optimization based on partial CSI feedback was investigated and three selected preprocessing approaches of optimization matrix were developed and tested.Computer simulation results showed that the proposed op-timization algorithm can effectively cancel IBI and ICI and significantly improve the performance in wideband OFDM systems.Compared with the pre-processing approaches at transmitters based on full CSI,under the condition of meeting the demand for quality of services(QoS),the proposed scheme has high spectral efficiency and low feedback and com-putation complexity.…”
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  20. 3260

    Optimization Techniques for Low-Level Control of DC–AC Converters in Renewable-Integrated Microgrids: A Brief Review by Guilherme Vieira Hollweg, Gajendra Singh Chawda, Shivam Chaturvedi, Van-Hai Bui, Wencong Su

    Published 2025-03-01
    “…The optimization of low-level control for DC–AC power converters is crucial for enhancing efficiency, stability, and adaptability in modern power systems. …”
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    Article