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<p class="elementToProof" style="margin-top: 0px; margin-bottom: 0px;"><span style="letter-spacing: normal; font-family: Söhne, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: 16px; font-weight: 400; color: rgb(0, 0, 0);">Hello
everyone,</span></p>
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<span style="letter-spacing: normal; font-family: Söhne, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: 16px; font-weight: 400; color: rgb(0, 0, 0);">I
hope this message finds you well. I am currently engaged in a project where I aim to calculate the elastic properties of certain crystals using Quantum ESPRESSO (QE) and Density Functional Theory (DFT). My primary focus is on determining the stiffness, stress,
and strain matrices for these crystals.</span></p>
<p style="text-align: left; margin: 1.25em 0px; border-width: 0px; border-style: solid; border-color: rgb(217, 217, 227);">
<span style="letter-spacing: normal; font-family: Söhne, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: 16px; font-weight: 400; color: rgb(0, 0, 0);">Given
the complexity of this task, I am reaching out to seek recommendations on any reliable and comprehensive sources, guides, or tutorials that can assist me in this process. If anyone has experience in this area or knows of resources that could guide me through
these calculations, I would greatly appreciate your input.</span></p>
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<span style="letter-spacing: normal; font-family: Söhne, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: 16px; font-weight: 400; color: rgb(0, 0, 0);"><br>
</span></p>
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<span style="letter-spacing: normal; font-family: Söhne, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: 16px; font-weight: 400; color: rgb(0, 0, 0);">Thank
you,</span></p>
<p class="elementToProof" style="text-align: left; margin: 1.25em 0px; border-width: 0px; border-style: solid; border-color: rgb(217, 217, 227);">
<span style="letter-spacing: normal; font-family: Söhne, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; font-size: 16px; font-weight: 400; color: rgb(0, 0, 0);">Elham </span></p>
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