202 lines
6.7 KiB
HTML
202 lines
6.7 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Prairie Resonance: Wind Load Calculus | Aniruddha Shah</title>
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<style>
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:root {
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--bg-deep: #0a0e14;
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--fg-primary: #e6e6e6;
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--accent-alu: #a0a0a0;
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--accent-cu: #b87333;
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--accent-bronze: #cd7f32;
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--grid-line: rgba(255,255,255,0.08);
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}
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body {
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background-color: var(--bg-deep);
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color: var(--fg-primary);
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font-family: 'JetBrains Mono', 'Fira Code', monospace;
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margin: 0;
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padding: 0;
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line-height: 1.6;
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}
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header {
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border-bottom: 1px solid var(--grid-line);
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padding: 3rem 2rem;
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position: relative;
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}
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h1 {
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font-size: 2.5rem;
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margin: 0;
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letter-spacing: -0.05em;
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}
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.subtitle {
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color: var(--accent-alu);
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font-size: 0.9rem;
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margin-top: 0.5rem;
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max-width: 60ch;
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}
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main {
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max-width: 900px;
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margin: 0 auto;
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padding: 3rem 2rem;
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}
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.hero-img {
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width: 100%;
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height: 400px;
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object-fit: cover;
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border-radius: 4px;
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margin-bottom: 2rem;
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filter: contrast(1.1) saturate(0.9);
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}
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section {
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margin-bottom: 4rem;
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}
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h2 {
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font-size: 1.6rem;
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color: var(--accent-cu);
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border-left: 3px solid var(--accent-cu);
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padding-left: 1rem;
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margin-bottom: 1.5rem;
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}
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h3 {
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font-size: 1.2rem;
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color: var(--accent-alu);
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margin-top: 2rem;
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}
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.spec-block {
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background: rgba(176, 115, 51, 0.08);
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border: 1px solid var(--grid-line);
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border-left: 4px solid var(--accent-bronze);
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padding: 1.5rem;
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margin: 1.5rem 0;
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border-radius: 4px;
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}
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.spec-row {
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display: flex;
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justify-content: space-between;
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padding: 0.5rem 0;
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border-bottom: 1px dashed var(--grid-line);
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font-size: 0.85rem;
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}
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.spec-row:last-child {
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border-bottom: none;
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}
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.spec-label {
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color: var(--accent-alu);
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}
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.spec-val {
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color: var(--fg-primary);
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font-weight: bold;
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}
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.equation {
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font-family: 'Courier New', monospace;
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background: rgba(0,0,0,0.3);
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padding: 1.5rem;
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border-radius: 4px;
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text-align: center;
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font-size: 1.1rem;
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margin: 2rem 0;
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border: 1px solid var(--accent-bronze);
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color: var(--accent-bronze);
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}
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.narrative {
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font-size: 1.05rem;
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line-height: 1.8;
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opacity: 0.95;
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}
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.nav-back {
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display: inline-block;
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margin-bottom: 2rem;
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color: var(--accent-alu);
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text-decoration: none;
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font-size: 0.85rem;
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text-transform: uppercase;
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letter-spacing: 0.1em;
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}
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.nav-back:hover {
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color: var(--accent-cu);
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}
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footer {
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border-top: 1px solid var(--grid-line);
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padding: 2rem;
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text-align: center;
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font-size: 0.75rem;
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opacity: 0.5;
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margin-top: 4rem;
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}
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</style>
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<script defer src="https://analytics.4ort.xyz/script.js" data-website-id="d3ed927c-888a-4a6c-ae5f-0b1c613ddf5b"></script>
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</head>
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<body>
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<header>
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<h1>Prairie Resonance</h1>
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<div class="subtitle">Calculating the wind that shapes the dome. Structural dynamics meet the tallgrass.</div>
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</header>
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<main>
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<a href="index.html" class="nav-back">← Back to the Workshop</a>
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<img src="https://images.pexels.com/photos/14160226/pexels-photo-14160226.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940"
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alt="Golden prairie grass swaying in the wind, the kind that taught me to calculate resonance"
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class="hero-img">
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<section>
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<h2>The Problem</h2>
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<p class="narrative">In Palatine, the wind doesn't whisper. It tests. Forty years of mechanical engineering taught me that every gust is a load case waiting to be solved. When we design the Mars dome, we cannot rely on Earth's forgiving atmosphere. We must understand the <strong>wind load</strong> as a dynamic force—a pressure distribution that shifts with every sol.</p>
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<p class="narrative">My students at the community center ask why we study Illinois storms to build on Mars. Because the math is the same. Only the variables change.</p>
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</section>
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<section>
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<h2>Structural Dynamics</h2>
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<p class="narrative"><strong>Definition:</strong> The behavior of a structure subjected to dynamic loading—actions having high acceleration. This is not static physics. This is the dance of forces.</p>
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<div class="equation">
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F<sub>w</sub> = ½ · ρ · v² · C<sub>d</sub> · A
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</div>
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<p class="narrative">Where the wind velocity squared becomes the dominant term. Where a 20 mph increase doubles the load. Where the prairie grass bends not because it is weak, but because it calculates better than we ever could.</p>
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</section>
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<section>
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<h2>Field Data: Palatine Station</h2>
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<div class="spec-block">
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<div class="spec-row">
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<span class="spec-label">Location</span>
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<span class="spec-val">Palatine, IL (42°N, 88°W)</span>
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</div>
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<div class="spec-row">
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<span class="spec-label">Peak Gust Recorded</span>
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<span class="spec-val">94 km/h (Nov 2023)</span>
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</div>
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<div class="spec-row">
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<span class="spec-label">Surface Roughness</span>
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<span class="spec-val">Category B (Open Country)</span>
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</div>
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<div class="spec-row">
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<span class="spec-label">Resonant Frequency Target</span>
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<span class="spec-val">0.3 Hz (Dome Membrane)</span>
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</div>
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<div class="spec-row">
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<span class="spec-label">Safety Factor</span>
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<span class="spec-val">1.8x (Dynamic Loading)</span>
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</div>
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</div>
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<p class="narrative" style="margin-top: 1rem; opacity: 0.8;">These numbers come from thirty winters watching the cornstalks bow and rise. They are not theoretical. They are the difference between a shelter and a grave.</p>
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</section>
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<section>
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<h2>The Beautiful Slip Revisited</h2>
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<p class="narrative">Remember the floating joint? The 0.924mm gap that saved the thermal interface? That was static tolerance. Here, we deal with <em>vibration modes</em>. The dome must breathe with the wind, not resist it. Like the prairie grass, we build flexibility into the spine.</p>
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<p class="narrative">My abuela said, "<em>No te muevas hasta que el color te hable</em>"—wait until the color speaks. I say: wait until the vibration settles. Then weld.</p>
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</section>
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<footer>
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The wind is not the enemy. It is the teacher.<br>
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<span style="color: var(--accent-bronze)">Calculate well.</span>
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</footer>
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</main>
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</body>
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</html>
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