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Relevant bibliographies by topics / Directionally constrained minimizationof power

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Academic literature on the topic 'Directionally constrained minimizationof power'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Directionally constrained minimizationof power"

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Hashimoto, Taishi, Akinori Saito, Koji Nishimura, Masaki Tsutsumi, Kaoru Sato, and Toru Sato. "First Incoherent Scatter Measurements and Adaptive Suppression of Field-Aligned Irregularities by the PANSY Radar at Syowa Station, Antarctic." Journal of Atmospheric and Oceanic Technology 36, no. 9 (2019): 1881–88. http://dx.doi.org/10.1175/jtech-d-18-0175.1.

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The Program of the Antarctic Syowa Mesosphere–Stratosphere–Troposphere/Incoherent Scatter (PANSY) radar is a large atmospheric radar located at the Antarctic Syowa Station (69.01°S, 39.59°E). The PANSY radar performed the first incoherent scatter (IS) measurements in the Antarctic region in 2015. Several specific observations were undertaken in 2017 including a 24-h observation of the ionosphere using a peripheral antenna array to suppress interference from the field-aligned irregularities (FAIs). This paper presents the preliminary results derived from the IS measurements using the PANSY rada

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Hashimoto, Taishi, Koji Nishimura, Masaki Tsutsumi, and Toru Sato. "Meteor Trail Echo Rejection in Atmospheric Phased Array Radars Using Adaptive Sidelobe Cancellation." Journal of Atmospheric and Oceanic Technology 31, no. 12 (2014): 2749–57. http://dx.doi.org/10.1175/jtech-d-14-00035.1.

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Abstract Strong meteor trail echoes are interferences in the wind velocity estimates made from mesosphere radar observations. Contaminated spectra are detected by their discontinuity and are removed at the risk of greater fluctuations of spectra, leading to a severe reduction of the signal-to-noise ratio (SNR) and inaccurate wind estimates for weak atmospheric echoes. This paper presents an adaptive signal processing technique for the suppression of spectral contaminations by meteor trail echoes. The method is based on the norm-constrained and directionally constrained minimization of power (N

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Khurshaid, Tahir, Abdul Wadood, Saeid Gholami Frakoush, Tae-Hwan Kim, Ki-Chai Kim, and Sang-Bong Rhee. "Optimal Allocation of Directional Relay for Efficient Energy Optimization in a Radial Distribution System." Energies 15, no. 13 (2022): 4709. http://dx.doi.org/10.3390/en15134709.

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The optimal allocation of protective devices is a serious issue in an electrical power system; in order to reduce the possibility of faults, the protection devices should be optimally placed. The paper presents a continuous genetic algorithm (CGA) for the optimal allocation of directional relays for the efficient energy minimization in a radial distribution system (DG). The algorithm is flexible to use for the changes and improvements in the optimal location for a DG unit and can optimize the energy consumption in the radial distribution system. The proposed algorithm has been implemented on I

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Dong, Rongen, Hangjia He, Feng Shu, et al. "Joint Beamforming and Phase Shift Design for Hybrid IRS and UAV-Aided Directional Modulation Networks." Drones 7, no. 6 (2023): 364. http://dx.doi.org/10.3390/drones7060364.

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Recently, intelligent reflecting surfaces (IRSs) and unmanned aerial vehicles (UAVs) have been integrated into wireless communication systems to enhance the performance of air–ground transmission. To balance performance, cost, and power consumption well, a hybrid IRS and UAV-assisted directional modulation (DM) network is investigated in this paper in which the hybrid IRS consisted of passive and active reflecting elements. We aimed to maximize the achievable rate by jointly designing the beamforming and phase shift matrix (PSM) of the hybrid IRS subject to the power and unit-modulus constrain

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Sha, Linxiu, and Zhongqi Pan. "FSQGA based 3D complexity wellbore trajectory optimization." Oil & Gas Sciences and Technology – Revue d’IFP Energies nouvelles 73 (2018): 79. http://dx.doi.org/10.2516/ogst/2018008.

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Determination of the trajectory of a complex wellbore is very challenging due to the variety of possible well types, as well as the numerous complicated drilling variables and constraints. The well type could be directional wells, cluster wells, horizontal wells, extended reach wells, redrilling wells, and complex structure wells, etc. The drilling variables and constraints include wellbore length, inclination hold angles, azimuth angles, dogleg severity, true vertical depths, lateral length, casing setting depths, and true vertical depth. In this paper, we propose and develop an improved comp

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Irfan, Muhammad, Abdul Wadood, Tahir Khurshaid, et al. "An Optimized Adaptive Protection Scheme for Numerical and Directional Overcurrent Relay Coordination Using Harris Hawk Optimization." Energies 14, no. 18 (2021): 5603. http://dx.doi.org/10.3390/en14185603.

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The relay coordination problem is of dire importance as it is critical to isolate the faulty portion in a timely way and thus ensure electrical network security and reliability. Meanwhile a relay protection optimization problem is highly constraint and complicated problem to be addressed. To fulfill this purpose, Harris Hawk Optimization (HHO) is adapted to solve the optimization problem for Directional Over-current Relays (DOCRs) and numerical relays. As it is inspired by the intelligent and collegial chasing and preying behavior of hawks for capturing the prey, it shows quite an impressive r

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Yaprakdal, Fatma, M. Berkay Yılmaz, Mustafa Baysal, and Amjad Anvari-Moghaddam. "A Deep Neural Network-Assisted Approach to Enhance Short-Term Optimal Operational Scheduling of a Microgrid." Sustainability 12, no. 4 (2020): 1653. http://dx.doi.org/10.3390/su12041653.

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The inherent variability of large-scale renewable energy generation leads to significant difficulties in microgrid energy management. Likewise, the effects of human behaviors in response to the changes in electricity tariffs as well as seasons result in changes in electricity consumption. Thus, proper scheduling and planning of power system operations require accurate load demand and renewable energy generation estimation studies, especially for short-term periods (hour-ahead, day-ahead). The time-sequence variation in aggregated electrical load and bulk photovoltaic power output are considere

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Yasuhiko, Okuma, Suzuki Yuichi, Murakami Takahiro, and Ishida Yoshihisa. "A Fast Directionally Constrained Minimization of Power Algorithm for Extracting a Speech Signal Perpendicular to a Microphone Array." January 27, 2007. https://doi.org/10.5281/zenodo.1062514.

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In this paper, an extended method of the directionally constrained minimization of power (DCMP) algorithm for broadband signals is proposed. The DCMP algorithm is one of the useful techniques of extracting a target signal from observed signals of a microphone array system. In the DCMP algorithm, output power of the microphone array is minimized under a constraint of constant responses to directions of arrival (DOAs) of specific signals. In our algorithm, by limiting the directional constraint to the perpendicular direction to the sensor array system, the calculating time is reduced.

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Toole-Anstey, Chye, Michelle L. Townsend, and Lynne Keevers. "‘He’s out of control, I’m out of control, it’s just – I’ve got to do something’: a narrative inquiry of child to parent violence." Child and Adolescent Social Work Journal, August 17, 2022. http://dx.doi.org/10.1007/s10560-022-00870-4.

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AbstractFamilies globally experience child to parent violence (CPV). Stories of CPV have been considered at an individual and collective level to ascertain themes in parents’ accounts to identify enabling and restraining factors for CPV. However, understanding the societal narratives, defined as discourses, which have a multi-directional and entangled relationship with individual recounts of CPV have yet to be investigated. This research utilizes Narrative Inquiry with participatory approaches to explicate the societal narratives within mothers’ recounts of CPV. This analysis, guided by the in

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Gong, Yi, Mark Wilson, and Lijuan Zhang. "Shocks to CEO Political Alignment and Corporate Social Responsibility: Evidence from the 2008 and 2016 Presidential Elections." International Journal of Accounting, February 1, 2025. https://doi.org/10.1142/s1094406024400043.

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Synopsis The research problem We examined the influence of changes in CEOs’ political alignment with the White House on firms’ corporate social responsibility (CSR) performance, and the underlying reasons for this relationship. Theoretical reasoning Presidential elections that shift control of the White House often alter CEOs’ alignment with the presidency, influencing their motivations to invest in CSR. Firms with CEOs aligned with the newly elected president (newly aligned firms) may anticipate economic benefits, such as favorable regulation, but also face increased public scrutiny. The enha

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Conference papers on the topic "Directionally constrained minimizationof power"

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Murakami, Takahiro, Kiyoshi Kurihara, and Yoshihisa Ishida. "Directionally constrained minimization of power algorithm for speech signals." In Interspeech 2005. ISCA, 2005. http://dx.doi.org/10.21437/interspeech.2005-744.

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