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Hello everyone, nice to meet you! How are you? My name is Omar. I would like to find a English language partner or french one to practice speaking with in exchange for Arabic.
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  • Posted
    Hi can anyone correct this passage? The convergence study of the first four natural frequencies of a Timoshenko shaft is presented in Tables 3 and 4. In this case, the shaft is in the stationary state, it is not subjected to any axial force and it is diskless. The results of the dimensionless frequency parameter obtained by using the differential transform method are validated with those obtained by Kocatürk and Şimşek [24] for the configuration of a simply supported shaft which is tabulated in Table 4. The dimensionless frequency parameter used in this case and the cases that come after in this study is given by the following expression:XXXXXXXXX
    May 30, 2020
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  • Posted
    Hello everyone, could you pls correct this passage ? In order to verify the proposed method for the transverse vibration of a non-rotating and rotating cantilevered and simply supported Timoshenko shaft with an overhung disk subjected to compressive load, a computer package Matlab is used to establish a calculating code for the expressions (29) and (30). to validate the obtained results, comparisons with the studies in the literature [1, 24-26] are made and excellent agreement between the results is observed. The effects of the rotational speed and the axial force on both the natural frequency and the stability of general overhung rotor systems are investigated and the related graphics are plotted.
    May 28, 2020
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  • Corrected
    How I can improve my English skills? <s style="color: rgb(230, 0, 0);">.</s>

    I only study English by myself through videos on YouTube. Try to listen<s style="color: rgb(230, 0, 0);">ing</s> to what they are saying and speaking(talking about ). I think <s style="color: rgb(230, 0, 0);">to</s> my communication skills are getting well <s style="color: rgb(230, 0, 0);">in english</s> <s style="color: rgb(230, 0, 0);">we should have so many</s> and I am increasing my vocabulary as well.
    0 voted
    May 26, 2020
    0
  • Corrected
    <s style="color: rgb(230, 0, 0);">Annoying old people</s>
    Old people got annoyed

    According to <s style="color: rgb(230, 0, 0);">On</s> my point of view, old people <s style="color: rgb(230, 0, 0);">is</s> are rude or at least, the people I <s style="color: rgb(230, 0, 0);">bump</s> hit in<s style="color: rgb(230, 0, 0);">to on</s> my way, in Markets or in public transportation <s style="color: rgb(230, 0, 0);">transport</s>.
    I always try to be prudent and respectful when they got angry <s style="color: rgb(230, 0, 0);">anger</s>.
    0 voted
    May 25, 2020
    0
  • Posted
    English, French and Arabic practice 😊👏👏
    Hello everyone
    I'm looking for anybody to do language exchange. I need to practice and improve my English or my French . I can give you structured Arabic lessons or just practice your conversational Arabic . Pls don’t hesitate to inbox me.
    May 24, 2020
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  • Commented
    Yeah why not !
    0 voted
    May 24, 2020
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  • Commented
    yeah we can help each other
    0 voted
    May 24, 2020
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  • Corrected

    <s>In</s> Nowadays we have many modern technologies thanks to scientific development. Every day we buy new phones, modern cars, and also, day after day, we discover more about the universe and discover new ways to prospect for oil as well as how to extract it ... but we have not written anywhere yet on how to preserve friendship. No <s>one</s> device can replace the warmth of the human soul.
    0 voted
    May 23, 2020
    0
  • Posted
    can anyone please correct this passage? 1) By treating the shaft as a Timoshenko beam, the influence of the axial load that include: constant force, harmonic force, random force, and so forth on the natural frequencies and mode shapes has been investigated by many scientists and engineers. 2) by treating the shaft as a Timoshenko beam, the influence of the axial load on the natural frequencies and the modes shapes have been investigated by many researchers and engineers. this axial load could be found under many formes like constant force, harmonic force, random force, and so forth
    May 23, 2020
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  • Posted
    Corrigiez moi ceci s’il vous plait Il vive dans une chaumière à côté d’un champs. il y’a ni électricité ni de l’eau ni du sanitaire, le moins qu’ on puisse dire c’est qu’ une vie primitive pour lui.
    May 22, 2020
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