Sem

A scanning electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning it with a focused beam of electrons. The electrons interact with atoms in the sample, producing various signals that can be detected and that contain information about the sample's surface topography and composition. The electron beam is generally scanned in a raster scan pattern, and the beam's position is combined with the detected signal to produce an image. SEM can achieve resolution better than 1 nanometer. Specimens can be observed in high vacuum, in low vacuum, and (in environmental SEM) in wet conditions.
Posts about Sem
    • What is SEM?

      If you are coming to this article as a novice, I know what you are thinking. “Not another damned 3 letter acronym! Don’t we have enough?” Well, apparently not, and unfortunately there isn’t all that much we can do to stop the ever growing database of aforementioned acronyms. We must therefore get accustomed to not only knowing what they stand for (Search Engine Marketing, in ...

      Search Engine Watchin Paid Search- 12 readers -
  • 5 remarketing strategies to prep for Q4

    … Remarketing is always one of the most powerful tools in an ecommerce marketer’s belt, but it takes on added importance in Q4. With the holidays fast approaching, you can do a good amount of prep work now to put yourself in a great position to capitalize on the holiday rush. I’ve outlined my five favorite remarketing strategies below. 1. Dynamic…

    Search Engine Watch- 16 readers -
  • The Differences between AdWords Match Types: The Tough SEM Decisions

    … If search engine marketing (SEM) were a game of schoolyard kickball, Google AdWords would get picked first every time. Not only is it the most popular tool for SEM, it’s one of the most effective. But being best (by most accounts, anyway) doesn’t necessarily mean it’s simple. A lot goes into choosing the right keywords [...] Read More... The post The Differences between AdWords Match Types: The Tough SEM Decisions appeared first on Dex Media. …

    Dex Mediain Paid Search- 15 readers -
  • After Some Challenging Pivots, Moz Digs Deeper for Growth

    … could potentially change SEO and SEM with an environment where there’s only one search result. How important is that to your strategy? I think everyone is keeping a very close eye on voice search. For the sake of clarity, I think it’s important that we’re very precise about what we mean when we say “voice,” because some people, when they say “voice…

    David Hirschman/ Street Fightin SEO- 18 readers -
  • Marketing 101: What is pogo sticking?

    … prior to joining MECLABS Institute. Twitter | LinkedIn | Courtney's Posts | Send a Letter to the Editor Categories: Search Marketing Tags: pogo sticking, search engine marketing, search engine optimization, SEM, SEO …

    MarketingSherpa Blogin SEO- 18 readers -
  • 7 Deadly Sins of Search Engine Marketing (SEM): Refine Your Strategy

    … There’s a lot of advice out there about what good search engine marketing (SEM) looks like. But even if you’re doing a lot of things right, you may be making some major SEM faux pas as well. Here are 7 things to avoid when tackling SEM for your local business. 1. Lacking Focus One of [...] Read More... The post 7 Deadly Sins of Search Engine Marketing (SEM): Refine Your Strategy appeared first on Dex Media. …

    Dex Mediain Paid Search- 17 readers -
  • Marketing 101: What is link juice?

    … Link juice is a valuable commodity in the search engine optimization world — and it doesn’t come easy. It’s a strategy game that gets more out of less and rewards marketers who prioritize value. For the uninitiated, link juice is marketing jargon that is used to explain the power (i.e., relevance) that external links can give to another…

    MarketingSherpa Blogin SEO- 11 readers -
  • A master checklist to keep your PPC running smoothly during a site relaunch

    … Site relaunches are a part of life for a PPC marketer, and they come with their share of pitfalls – but it’s nothing some prep work can’t manage. In this post, we’ll give you a handy checklist that will keep your tracking, campaigns, and ads running smoothly – with a few bonus tips for quantifying […] The post A master checklist to keep your PPC…

    3Q Digitalin Paid Search- 8 readers -
  • The Latest Developments in Pay-Per-Click (PPC) Advertising

    … Earning prime visibility on the web and ranking well online are goals for most local business owners. So if search engine optimization (SEO) and online listings are only getting you part of the way there, pay-per-click (PPC) advertising or search engine marketing (SEM) can pick up some serious slack. What type of business should use [...] Read More... The post The Latest Developments in Pay-Per-Click (PPC) Advertising appeared first on Dex Media. …

    Dex Mediain Paid Search- 19 readers -
  • The Latest Developments in Pay-Per-Click (PPC) Advertising

    … Earning prime visibility on the web and ranking well online are goals for most local business owners. So if search engine optimization (SEO) and online listings are only getting you part of the way there, pay-per-click (PPC) advertising or search engine marketing (SEM) can pick up some serious slack. What type of business should use Pay-Per-Click [...] Read More... The post The Latest Developments in Pay-Per-Click (PPC) Advertising appeared first on Dex Media. …

    Dex Mediain Paid Search- 17 readers -
  • 3 ways to scale your SEM efforts when you are hitting a wall

    …? Below are a few strategies to break through the SEM wall and grow your account in an effective yet efficient manner. Use Dynamic Search Ads for query mining This is an obvious one, but many folks forget or tend to not use DSAs as they fear them going rogue and eating up spend without performing. First off, what are DSAs? DSAs are a campaign type…

    Search Engine Watchin Affiliate Paid Search- 13 readers -
  • Constructing the Enterprise Priority List for Local Search

    … to consider Phoenix or Denver as their next destination. Mike: Your discouragement is unlikely to deter them much if at all. David: I’m under no illusion, but it’s worth a shot… Mike: A reader asked that we talk about enterprise and local. What say we talk about the evolving local practices that we are seeing there? David: Sounds good. I’m working…

    Street Fightin SEO Google- 18 readers -
  • Bidding Up on Competitor Terms: Results and Takeaways

    … Running competitor campaigns on the search network is a much debated strategy that often doesn’t pay off. In many cases, we have clients interested in disrupting their competitors using paid search. It’s a good idea in theory but can end up being pretty pricey. In a recent test, our client wanted to see what would […] The post Bidding Up…

    3Q Digitalin Paid Search- 12 readers -
  • Were you at the Seattle Biz Talk?

    … the first page of results. Most don’t even look past the first three results. Translation? If you’re not investing in ads that place your website at the top of the list, it’s becoming more and more likely your business will get lost in the clutter. Social Media Shortcuts by SCORE’s Robbin Block SCORE’s Robbin Block was a true social butterfly. She…

    Dex Mediain Social- 20 readers -
Get the top posts daily into your mailbox!
More from around the web