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<body class="archive author author-darrell-leethamthermofisher-com author-142 header-image full-width-content genesis-breadcrumbs-hidden archive-no-results"><div class="site-container"><header class="site-header"><div class="wrap"><div class="title-area"><p class="site-title"><a href="https://www.thermofisher.com/" title="Thermo Fisher Scientific">Thermo Fisher Scientific</a></p><p class="site-description">Where forward-thinking scientists, educators and safety professionals come to share and discover information that makes the world a cleaner, safer & healthier place to live.</p></div><div class="widget-area header-widget-area"><section id="nav_menu-2" class="widget widget_nav_menu"><div class="widget-wrap"><nav class="nav-header"><ul id="menu-primary-menu" class="menu genesis-nav-menu"><li id="menu-item-118" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-118"><a><span >Categories</span></a> <ul class="sub-menu"> <li id="menu-item-125" 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</li> <li id="menu-item-117" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-117"><a href="https://www.thermofisher.com/blog/about-us/"><span >About Us</span></a></li> <li id="menu-item-116" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-116"><a href="https://www.thermofisher.com/blog/contact-us/"><span >Contact</span></a></li> </ul></nav></div></section> </div></div></header> <section class="hero-banner home"> <span class="content"> <h1 class="title">Accelerating Science</h1> <p>Where forward-thinking scientists, educators and safety professionals come to share and discover information that makes the world a cleaner, safer & healthier place to live.</p> </span> </section> <div class="site-inner"><div class="content-sidebar-wrap"><main class="content"> <div class="author-single-bio"> <div class="one-third first author-image"> <img src="" width="" height="" /> </div> <div class="two-thirds author-info"> <h2>Darrell Leetham</h2> <p class="job-title"> </p> <p class="author-bio"> </p> </div> </div> <div class="author-archive"> <h2>Categories</h2> <h3>Advancing Mining</h3> <li><a href="https://www.thermofisher.com/blog/mining/pgnaa-improves-process-and-quality-control-in-cement-production/">PGNAA Improves Process and Quality Control in Cement Production</a></li> <li><a href="https://www.thermofisher.com/blog/mining/15-frequently-asked-questions-about-cement-analysis/">15 Frequently Asked Questions about Cement Analysis</a></li> <li><a href="https://www.thermofisher.com/blog/mining/can-stockpile-chemistry-be-controlled-to-meet-cement-quality-targets-if-there-are-chemistry-variations-across-an-entire-quarry/">Can Stockpile Chemistry be Controlled to Meet Cement Quality Targets if there are Chemistry Variations Across an Entire Quarry?</a></li> <li><a href="https://www.thermofisher.com/blog/mining/can-online-cement-analysis-reduce-raw-material-chemistry-variation-and-process-variability/">Can online cement analysis reduce raw material chemistry variation and process variability?</a></li> <li><a href="https://www.thermofisher.com/blog/mining/can-an-online-analyzer-help-reduce-energy-consumption-of-the-cement-plant/">Can an online analyzer help reduce energy consumption of the cement plant?</a></li> <li><a href="https://www.thermofisher.com/blog/mining/where-should-i-place-an-online-analyzer-to-help-ensure-consistent-raw-material-quality/">Where should I place an online cement analyzer to help ensure consistent raw material quality?</a></li> <li><a href="https://www.thermofisher.com/blog/mining/performance-optimization-for-online-cement-analyzers/">Performance Optimization for Online Cement Analyzers</a></li> <li><a href="https://www.thermofisher.com/blog/mining/4-maintenance-tasks-vital-to-crossbelt-mineral-processing-analyzer-performance/">4 Maintenance Tasks Vital to Crossbelt Mineral Processing Analyzer Performance</a></li> <li><a href="https://www.thermofisher.com/blog/mining/manage-your-cement-or-coal-mix-with-pgnaa-technology/">Manage Your Cement or Coal Mix with PGNAA Technology</a></li> <li><a href="https://www.thermofisher.com/blog/mining/are-you-mining-minerals-for-cement-or-for-concrete/">Are You Mining Minerals for Cement, or for Concrete?</a></li> <li><a href="https://www.thermofisher.com/blog/mining/question-about-limestone-and-clay-blending-in-cement-production/">Question About Limestone and Clay Blending in Cement Production</a></li> <li><a href="https://www.thermofisher.com/blog/mining/ieee-iaspca-plans-a-solid-cement-show/">IEEE-IAS/PCA Plans A Solid Cement Show</a></li> <li><a href="https://www.thermofisher.com/blog/mining/combine-online-and-lab-analysis-for-optimal-cement-stockpile-and-raw-mix-chemistry/">Combine Online and Lab Analysis for Optimal Cement Stockpile and Raw Mix Chemistry</a></li> <li><a href="https://www.thermofisher.com/blog/mining/increasingclinkerquality/">Increasing Clinker Quality through Automation</a></li> <li><a href="https://www.thermofisher.com/blog/mining/life-quarry-cut-short-unnecessarily/">What Would You Do If The Life Of Your Quarry Was Being Cut Short Unnecessarily?</a></li> </div> </main></div></div><footer class="site-footer"><div class="wrap"><div class="creds"><p class="footer-links"><a href="https://corporate.thermofisher.com/en/footer/privacy-statement.html" target="_blank" rel="noopener noreferrer">Privacy Statement</a><a href="https://corporate.thermofisher.com/en/footer/terms-and-conditions.html" target="_blank" rel="noopener noreferrer">Terms & Conditions</a><a href="/blog/locations/">Locations</a><a href="/blog/sitemap/">Sitemap</a></p><p>© 2024 <a href="https://www.thermofisher.com">Thermo Fisher Scientific</a>. 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