Showing 661 - 680 results of 775 for search 'rectangular were', query time: 0.13s Refine Results
  1. 661

    Cluster-Based 3-D Channel Modeling for Massive MIMO in Subway Station Environment by Jianzhi Li, Bo Ai, Ruisi He, Mi Yang, Qi Wang, Bei Zhang, Zhangdui Zhong

    Published 2018-01-01
    “…In this paper, a massive multiple-input multiple-output (MIMO) channel measurement campaign with 256-element virtual rectangular array at the base station was conducted. …”
    Get full text
    Article
  2. 662

    Analysis of inlet temperature, pressure, and channel design effect on cryogenic methane evaporation in minichannel PCHEs by Nyein Nyein Aye, Withun Hemsuwan, Chalothorn Thumthae

    Published 2025-09-01
    “…In this study, CFD simulations using the Volume of Fluid (VOF) method were employed to systematically investigate two-phase flow simulation in minichannel PCHEs. …”
    Get full text
    Article
  3. 663

    Study on the side friction resistance capacity of prefabricated pipe piles in coral reef strata by Hong Zhang, Ran Gao, Ran Gao, Huiwu Luo, Peishuai Chen, Haifeng Liu

    Published 2025-01-01
    “…In this study, a series of interfacial shear tests were carried out for coral sand and coral reef limestone (CRL) in the sea area near the Maldives islands and reefs, and the distribution law of the SFR of prefabricated pipe piles in coral sand was investigated by using a large-scale pile foundation model test apparatus. …”
    Get full text
    Article
  4. 664

    Numerical simulation of the transverse flow over spans of girder bridges by Yu. A. Gosteev, A. D. Obukhovskiy, S. D. Salenko

    Published 2018-12-01
    “…The technique was preliminarily tested on the check problem for the flow of the rectangular crosssection beams. Calculations were carried out using the licensed ANSYS software.Research Results. …”
    Get full text
    Article
  5. 665

    Insights into cavitation enhancement: Numerical simulation and spectrum analysis of a novel dual-frequency octagonal ultrasonic reactor by Zhiping Shi, Zedong Wang, Bowen Yang, Liyan Liu

    Published 2025-01-01
    “…The effects of reactor shape, transducer position, and multi-frequency ultrasound interaction on the sound pressure distribution in the reactor were simulated, employing a linear wave equation that accounts for the inhomogeneous distribution of bubbles. …”
    Get full text
    Article
  6. 666

    Tensor-based approach to the co-prime planar array signal processing by Wei RAO, Yufeng GUI, Dan LI

    Published 2020-08-01
    “…For the co-prime planar array (CPPA) consisting of two sparse uniform rectangular array (URA),a new processing method based on tensor algebra was proposed to enhance the degrees of freedom (DoF).By dividing each URA into some overlapping subarrays,the received signals of two URAs were expressed as two tensors.And then the cross-correlation between such two tensors was processed into a received signal tensor of the virtual array.Analysis show that by the new method,the CPPA with 2 <sup>2</sup>L -1 physical elements can be transformed into a virtual sparse non-uniform planar array with<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML"> <mfrac> <mrow> <msup> <mrow> <mo stretchy="false">(</mo><mi>L</mi><mo>+</mo><mn>1</mn><mo stretchy="false">)</mo></mrow> <mrow> <mtext> </mtext><mn>4</mn></mrow> </msup> </mrow> <mrow> <mn>16</mn></mrow> </mfrac> </math></inline-formula>elements.For the virtual array,the tensor decomposition-based approach for estimating the two-dimensional (2-D) direction of arrival (DoA) of the incident signal is also proposed,which means 2-D spectral peak searching is avoided.Compared with the co-prime planar signal processing methods reported in the literature,the proposed method can increase the DoF from L <sup>2</sup>to<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML"> <mfrac> <mrow> <msup> <mrow> <mo stretchy="false">(</mo><mi>L</mi><mo>+</mo><mn>1</mn><mo stretchy="false">)</mo></mrow> <mrow> <mtext> </mtext><mn>4</mn></mrow> </msup> </mrow> <mrow> <mn>16</mn></mrow> </mfrac> <mo>+</mo><mn>1</mn> </math></inline-formula>,and has the better performance of the 2-D DoA estimation and lower computational complexity.Simulation results demonstrate the efficiency of the proposed method.…”
    Get full text
    Article
  7. 667

    A Rare Case of Tumoral Calcium Pyrophosphate Dihydrate Crystal Deposition Disease of the Wrist Joint by Osamu Nakamura, Yoshio Kaji, Yoshiki Yamagami, Kounosuke Yamaguchi, Hideki Nishimura, Natsuko Fukuoka, Tetsuji Yamamoto

    Published 2015-01-01
    “…An excisional biopsy and a histological examination of the excised nodular lesions by hematoxylin and eosin (H&E) staining were performed, demonstrating numerous polarizable, rhabdoid, and rectangular crystals, surrounded by fibroblasts, macrophages, and foreign body-type giant cells, consistent with tumoral CPPDCD. …”
    Get full text
    Article
  8. 668
  9. 669

    Flexural behaviour of pre-damaged RC beams retrofitted using CFRP laminates by Karuppiah Palaniappan, Philip Saratha Joanna, Murali Rajasekaran, Angeline Prabhavathy, Daniel Cruze, Samuel James

    Published 2025-01-01
    “…The experimental examination involved the casting and subsequent strengthening of six rectangular RC beams, via external bonding techniques utilizing both CFRP laminates and fabrics. …”
    Get full text
    Article
  10. 670

    Mathematical Modeling and Analysis of the Mechanical Properties of a Nonferromagnetic Panel Under the Action of a Quasi-Steady Electromagnetic Field by Roman Musii, Viktor Pabyrivskyi, Myroslava Klapchuk, Dariusz Całus, Piotr Gębara, Zenoviy Kohut, Ewelina Szymczykiewicz

    Published 2025-07-01
    “…A two-dimensional thermomechanics problem is formulated for the considered panel of a rectangular cross-section. The initial relations for finding the determinant functions, namely, the components of the quasi-static stress tensor, are given. …”
    Get full text
    Article
  11. 671

    FEATURES OF OUTFLOW OF INTRAOCULAR LIQUID AFTER AN EKSIMERLAZER SKLEREKTOMY (PILOT STUDY) by E. A. Korchuganova, O. A. Rumyantseva, S. B. Gudkova

    Published 2017-10-01
    “…In the experiment used a special computer program provided ablation of scleral tissue, the scleral bed forming a rectangular shape with a size 7,0x5,0 mm. the Depth of influence started from 100 microns to 600 microns in increments of 50 µn. …”
    Get full text
    Article
  12. 672

    Enhancing dexterity: Soft pneumatic actuation utilizing granular jamming for a human finger flexo-extension by X. Yamile Sandoval-Castro, J. German Cortes-Gonzalez, Maximiano F. Ruiz-Torres, Eduardo Castillo-Castaneda, Med Amine Laribi

    Published 2025-01-01
    “…Three-chamber geometries – honeycomb, rectangular, and half-round – were evaluated to optimize curvature performance, utilizing Mold Star 15 Slow elastomer for actuator fabrication. …”
    Get full text
    Article
  13. 673

    Evaluation of Microwave Heating Uniformity for Ready-to-Eat Rice in Metalized Packaging Structure by Chai Liu, Bo Tian, Huiran Liu, Liuyang Shen, Yong Zhu, Chenghai Liu, Xianzhe Zheng, Xiting Deng, Yuxin Zhao

    Published 2024-12-01
    “…To analyze the uniformity changes inside RER, the effects of microwave reflection, refraction, and absorption by a metal aluminum film were studied through the thermodynamic properties. …”
    Get full text
    Article
  14. 674

    SIMULATION OF 2D FLOW AROUND OF AIRFOILS AT LOW-SPEED WIND TUNNEL WITH OPEN JET TEST-SECTION by Yu. S. Mikhailov, Yu. G. Stepanov

    Published 2019-02-01
    “…The airfoil section in the layout of a rectangular wing is mounted horizontally between flat panels with minimum gaps to ensure 2D flow conditions. …”
    Get full text
    Article
  15. 675

    Numerical and experimental analysis of edge wave defect control during TA2 circular tube cold roll forming by Mingze Yue, Jing Zhang, Bing Xiao, Gang Chen, Qiang Fang, Xinxin Tang, Biyou Peng

    Published 2024-11-01
    “…Orthogonal experiments were performed to assess the influence of frame spacing, forming speed, roll gap, and downhill amount, on edge wave defects. …”
    Get full text
    Article
  16. 676

    The Calculation and Optimization Methodology of Repairable Elements of a UAV Structure by Wojciech Skarka, Sergiy Kurennov, Kostiantyn Barakhov, Fedir Gagauz, Olesia Maksymovych, Oleksii Vambol

    Published 2025-05-01
    “…In most scientific studies on this problem, significant attention is devoted to the investigation of rectangular patches used for reinforcing plates that have defects such as cracks and damage. …”
    Get full text
    Article
  17. 677

    Shape anisotropy-induced local incoherent magnetization: Implications for magnetic sensor tuning by Jinwoo Kim, BB Nayak, I.V. Soldatov, R. Schäfer, Byeonghwa Lim, CheolGi Kim

    Published 2025-06-01
    “…The sensor signals were calculated and measured for various width-to-length ratios of the bridge elements and external magnetic field strengths. …”
    Get full text
    Article
  18. 678
  19. 679

    Evaluation of mechanical properties and color stability of 3D-printed denture base materials following two surface treatments by Eymen Izzettinoglu, Erdal Eroglu

    Published 2025-04-01
    “…Materials and methods Rectangular test specimens (64 × 10 × 3.3 ± 0.2 mm) were fabricated from a conventional heat-cured denture base material (Probase HC, n = 20) and four 3D-printed denture base materials (Nextdent; ND, Formlabs; FL, Senertek; ST, Powerresin; PR, n = 40 per group), resulting in a total sample size of N = 180. …”
    Get full text
    Article
  20. 680

    Composición florística de dos bosques (Tierra firme y varzea) en la región de Araracuara, Amazonia Colombiana by Londoño Vega Ana Catalina, Alvarez Dávila Estéban

    Published 1997-11-01
    “…Two rain forests of the Araracuara region (Colombian Amazon) are described and compared in terms of vascular terrestrial plant composition. Two 1.8 ha rectangular plots, located in upland (tierra firme) and seasonally flooded (várzea) sites, were sampled for individuals taller than 0.5 m. …”
    Get full text
    Article