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  1. 9521

    Investigation of a Random-Fractal Antenna Based on a Natural Tree-Leaf Geometry by Hatem Rmili, Donia Oueslati, Imen Ben Trad, Jean Marie Floch, Abdullah Dobaie, Raj Mittra

    Published 2017-01-01
    “…Both the impedance matching properties and the radiation patterns of the antenna are studied over the frequency band 1–6 GHz. Four configurations are designed by increasing the complexity of the structure, which ranges from iteration 0 to iteration 3. …”
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  2. 9522

    ANALYSIS ON RESPONSE OF TOWER CRANE STRUCTURES UNDER RANDOM EARTHQUAKE EXCITATIONS by WANG PingPing, YU LanFeng, HAN Wei, TANG Hui, YAN Fei, ZHAO DengShan

    Published 2016-01-01
    “…The analysis reveals that the force of tower crane increase significantly under vertical seismic excitation than X-direction,Z-direction excitation have the greatest influence in tower body bending moment; the primary reason of tower arm fracture is vertical seismic action,too large seismic wave cause tower body capsized easily.…”
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  3. 9523

    100 Tbit/s Optical Transmission Technology on Single Mode Fiber by Ming Luo, Zhixue He, Rong Hu, Wu Liu, Qi Yang, Shaohua Yu

    Published 2015-10-01
    “…With the rapid development of the information society,the demand for the transmission capacity of the backbone network is becoming more and more urgent.Firstly,the background of 100 Tbit/s optical transmission technology on single mode fiber(SMF)was introduced.Then some large capacity optical transmission experiments on SMF in recent years were compared.Next,the technical route of 100 Tbit/s optical transmission system on SMF was analyzed,and it was focused on the system experiment of C and L band 100.2 Tbit/s dual polarization DFT-S 128QAM OFDM signal transmission over 80 km G.652 fiber which was first in China.Finally,research foreground of 100 Tbit/s optical transmission technology on SMF was prospected.…”
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  4. 9524

    En órbita emocional: Lupus de Frederik Peeters by Juan Manuel Díaz de Guereñu Ruiz de Azúa

    Published 2014-08-01
    “… Lupus (2002-2006) de Frederik Peeters es una peculiar historieta de ciencia ficción que desconcierta los tópicos del género en el cómic y con ellos las expectativas del lector mayoritario del mercado francobelga de la bande dessinée. Este trabajo se propone analizar el proyecto narrativo de Peeters en dicha obra, su utilización de los recursos genéricos como herramientas expresivas para desarrollarlo y el tratamiento gráfico peculiar que da a su relato, a fin de valorar la significación estética del título. …”
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  5. 9525

    ANALYTICAL STUDY OF THE STATIC THERMOMECHANICAL STRESSES OF THE ASSEMBLIES WITH OPTIONAL RING FLANGES. ROTATION OF THE FLANGE RING AROUND THE CIRCUMFERENCE OF CENTERS FOR BOLT HOLE... by IATAN RADU I., GHEORGHITA TOMESCU, GEORGETA ROMAN (URSE), MELANIA CORLECIUC (MITUCA), IOLANDA CONSTANTA PANAIT

    Published 2021-10-01
    “…A linear algebraic system is formed in which both external loads (pressure, temperature) and connecting loads (bending unit moments and unit forces) are present. …”
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  6. 9526

    The Baker’s Dozen: Key Nations Can and Should Act Together to Prevent Further Dangerous Climate Change by Kirsten Oleson, Lauren Hartzell, Michael Mastrandrea

    Published 2009-09-01
    “…Most international responses to climate change assume we need a ‘global’ solution. Game theory and political science both support limiting the negotiating parties to enable a more rapid and aggressive response. …”
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  7. 9527
  8. 9528

    Effect of Mn Doping on Properties of CdS Quantum Dot-Sensitized Solar Cells by Tianxing Li, Xiaoping Zou, Hongquan Zhou

    Published 2014-01-01
    “…However, the photoelectric conversion efficiency of QDSSCs is still lower than the DSSCs because of the severe recombination of electrons of quantum dots conduction band. In order to improve the photoelectric conversion efficiency of QDSSCs, impurity element Mn2+ is doped into the precursor solution of cadmium sulfide (CdS). …”
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  9. 9529

    Development of a Low Cost Assistive Listening System for Hearing-Impaired Student Classroom by Setha Pan-ngum, Tharapong Soonrach, Sangvorn Seesutas, Anukool Noymai, Pasin Israsena

    Published 2013-01-01
    “…Key specifications include transmitting in 2.4 GHz ISM band with eight selectable transmission channels, battery operated and chargeable, pocket size, and ranged up to thirty metres. …”
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  10. 9530

    Application of Evolutionary Computation in Automotive Powertrain Mount Tuning by Anab Akanda, Chandu Adulla

    Published 2006-01-01
    “…Nodal point of flexible powertrain bending was used to define the envelop for transmission mount locations. …”
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  11. 9531

    STUDY ON CALCULATIONS OF MESHING STIFFNESS OF GEAR TEETH OF PLANETARY GEAR REDUCER OF LESS TOOTH DIFFERENCE WITH BIASING CRANKSHAFT BASED ON MATLAB by XU Qiang, XU ZeYin, ZHU AiHua

    Published 2016-01-01
    “…To calculate the different meshing points stiffness of the internal gear pairs of planetary gear reducer of less tooth difference with biasing crankshaft,the parameter and engagement angle equation of the internal and external tooth of the reducer is established; the tooth is regarded as a cantilever beam with variable sections,the numerical model used to calculate the different deformation of the tooth is built respectively,and adopts the differential quadrature method when calculating the bending and shear deformations of the variable section beams,the Matlab program to compute the different meshing points stiffness is also compiled,the method is verified with living example and experiment. …”
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  12. 9532

    Complications Using Bioabsorbable Cross-Pin Femoral Fixation: A Case Report and Review of the Literature by Saqib Hasan, Samir Nayyar, Ikemefuna Onyekwelu, Kunal Kalra, Soterios Gyftopoulos, Laith M. Jazrawi

    Published 2011-01-01
    “…We reviewed the literature for all complications associated with the Bio-TransFix implant and present a case report of a patient status after ACL reconstruction using Bio-TransFix cross-pin femoral fixation with iliotibial band friction syndrome from a broken cross-pin four month post-operatively.…”
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  13. 9533

    Sn and Ti influences on intermetallic phases damage in hot dip galvanizing by V. Di Cocco

    Published 2012-09-01
    “…In this work a comparative microstructural analysis, in Zn-Sn and Zn-Ti coatings, is performed to evaluate intermetallic phases formation kinetics and the influence of intermetallic microstructure on coating damage under constant bending deformation.…”
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  14. 9534

    Mechanochemical Synthesis of Visible Light Sensitive Titanium Dioxide Photocatalyst by Jan Šubrt, Jose M. Criado, Lórant Szatmáry, Maria J. Diánez-Millán, Nataliya Murafa, Luis A. Pérez-Maqueda, Vlasta Brezová

    Published 2011-01-01
    “…The UV-visible absorption spectrum showed narrowing the band gap width after grinding with an ammonium carbamate additive resulting in shift of the light absorption of the ground sample towards the visible region. …”
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  15. 9535

    Research on the algorithm for reducing the PAPR of OFDM system based on quantum chaotic mapping by Yingjie MA, Geng ZHAO, Zhanzhen WEI, Zhaobin LI, Lei JU

    Published 2019-01-01
    “…Aiming at the high peak to average power ratio (PAPR) problem of OFDM system,a modified selective mapping algorithm based on quantum loigstic chaotic map was proposed.To solve the problem of fixed point and stable window,the quantum loigstic chaotic maps were used as random phase sequence vectors,which provided a large number signals with fine correlation and random characteristics,easy to produce and regenerate.Matlab simulation results show that the proposed algorithm effectively reduces the PAPR,increases the numbers of candidate signals,cuts down the amount of redundant information transmission,bring down the side band power.The proposed scheme has a broad application prospect in OFDM system.…”
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  16. 9536

    Optical and Structural Properties of Thermally Evaporated Zinc Oxide Thin Films on Polyethylene Terephthalate Substrates by M. G. Faraj, K. Ibrahim

    Published 2011-01-01
    “…The optical properties of ZnO on PET substrates were determined through the optical transmission method using an ultraviolet-visible spectrophotometer. The optical band gap values of ZnO thin films slightly decreased as the film thickness increased.…”
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  17. 9537

    Optimal Design of the Fuzzy Reliability of Double Circular Arc Gear based on MATLAB by Wang Chunyan, Ji Bin, Fu Jianwei

    Published 2016-01-01
    “…Taking the double arc gear in the national standard GB/T12759-1991 as the analysis object,by using the theory of fuzzy mathematics and reliability optimization design method,considering arc gear transmission allowable stress randomness and fuzziness,taking the fuzzy reliability of arc gear bending modulus strength and contact strength and the modulus,tooth number,helix angle,longitudinal coincidence degree of gear as constraint condition,a minimum volume of arc gear optimization as target,the fuzzy reliability optimum design model of double arc gear is established,and a practical example is given,the results indicate that,the circular gear design with fuzzy reliability optimization design method has better rationality.…”
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  18. 9538

    A COMPARATIVE STUDY OF THE APPLICATION OF DIFFERENT TCD IN CRANKSHAFT FATIGUE PROPERTY PREDICTION by SUN SongSong, WAN MaoSong, XU XiaoMei

    Published 2020-01-01
    “…This paper,focus on the crankshaft bending fatigue property prediction research,first analyzes the stress distribution fitting approach based on a stress gradient approach,then the fatigue property of the crankshaft with the same material but different structure is predicted,finally corresponding experiment verification is conducted. …”
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  19. 9539

    SUPPORT VECTOR MACHINE FOR HUMAN IDENTIFICATION BASED ON NON-FIDUCIAL FEATURES OF THE ECG by HATEM ZEHIR, TOUFIK HAFS, SARA DAAS, AMINE NAIT-ALI

    Published 2023-05-01
    “…Using the mean frequency, median frequency, band power, and Welch power spectral density (PSD) of ECG data, we proposed a novel biometric approach in this study. …”
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  20. 9540

    Effect of Aging Treatment on the Damping Capacity and Mechanical Properties of Mg-6Al-1Zn Alloy by Abdel-Wahab El-Morsy, Ahmed I. Z. Farahat

    Published 2015-01-01
    “…The damping characteristics of un-heat-treated, solution treated, and aged Mg-6Al-1Zn specimens were determined by measuring the damping ratio and the logarithmic decrement of free vibrations of a bending beam clamped at one side. The microstructural evaluations confirmed that the β-Mg17Al12 phase was reprecipitated after aging and increased with an increase in aging time. …”
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