Samples must be solid and they must fit into the microscope chamber. Maximum size in horizontal dimensions is usually on the order of 10 cm, vertical dimensions are generally much more limited and rarely exceed 40 mm. For most instruments samples must be stable in a vacuum on the order of 10-5 - 10-6 torr. Samples likely to outgas at low pressures (rocks saturated with hydrocarbons, "wet" samples such as coal, organic materials or swelling clays, and samples likely to decrepitate at low pressure) are unsuitable for examination in conventional SEM's. However, "low vacuum" and "environmental" SEMs also exist, and many of these types of samples can be successfully examined in these specialized instruments. EDS detectors on SEM's cannot detect very light elements (H, He, and Li), and many instruments cannot detect elements with atomic numbers less than 11 (Na). Most SEMs use a solid state x-ray detector (EDS), and while these detectors are very fast and easy to utilize, they have relatively poor energy resolution and sensitivity to elements present in low abundances when compared to wavelength dispersive x-ray detectors (WDS) on most electron probe microanalyzers (EPMA). An electrically conductive coating must be applied to electrically insulating samples for study in conventional SEM's, unless the instrument is capable of operation in a low vacuum mode. http://youtube.com/watch?v=7bNPg8UbhaE
Google’s Accelerated Mobile Project (AMP) will gain even more popularity. AMP is a collaboration between developers and other industry professionals to create a massive open source library that offers users more opportunity to create quick and smooth mobile-friendly web pages. This is one area where we’ll be seeing the death of slow-loading pages that rank low. The use of AMP has resulted in huge increases in mobile searches and traffic from major publications such as the Washington Post and Slate.
Professional cameras, like DSLRs, give you fine control over the manual settings of shooting video and allow you achieve the shallow depth of field (background out of focus) that people rave about. While they’re primarily used for photography, DSLRs are incredibly small, work great in low light situations, and pair with a wide range of lenses — making them perfect for video. However, DSLRs do require some training (and additional purchases) of lenses.
While Facebook’s main purpose isn’t for watching and sharing videos, the site is making a smart move by investing more in the medium. Facebook is a great place to share top-of-funnel video content that is worthy of being shared. Think about keeping video content here fairly short, attention-grabbing enough to prevent scrolling, and if possible, create your content so the message can be relayed and enjoyed even without sound. If you do this well, the site’s network of users essentially act like brand ambassadors, helping to disseminate your content for you.
If your video is product- or service-centric, potential customers have no chance at feeling some connection with your video. Your product or service just helps them accomplish a job that they need to complete! But, if you take a human-centric approach, you have a chance to grab their attention even when they are not explicitly looking to solve a problem. They can enjoy your story and learn a little more about your brand without feeling like they are watching an advertisement. http://www.youtube.com/e/7bNPg8UbhaE?app=desktop
Another reason is that if you're using an image as a link, the alt text for that image will be treated similarly to the anchor text of a text link. However, we don't recommend using too many images for links in your site's navigation when text links could serve the same purpose. Lastly, optimizing your image filenames and alt text makes it easier for image search projects like Google Image Search to better understand your images.
Sometimes considered to be a part of SEM, social media sites like Twitter, YouTube, Facebook, and Delicious have search fields and also pass authority to sites through links. Making sure your content and links are placed (where necessary) on these social media sites can increase your influence in user search engine queries. SMM is a rapidly growing area of Internet marketing but to discuss it further is beyond the scope of this Guide. http://www.youtube.com/watch?v=e29F5n3ea0I&feature=youtu.be
A navigational page is a simple page on your site that displays the structure of your website, and usually consists of a hierarchical listing of the pages on your site. Visitors may visit this page if they are having problems finding pages on your site. While search engines will also visit this page, getting good crawl coverage of the pages on your site, it's mainly aimed at human visitors.
This broad overview of each piece of the Internet marketing world gives students a firm foundation in the field to help them decide where their interests and talents fit the best. All designers should have an understanding of content creation, while all content specialists should have respect for the design process (See also Content Marketing Specialist). At the more advanced levels of a marketing program, students will hone the skills that are most important to their areas of emerging expertise to create sharp minds and strong portfolios on their way to the workplace. https://m.youtu.be/e29F5n3ea0I
Paid Search: The advantage of paid search is that you can have your website listed on the first pages in a prominent spot on Google and other search engines. However, showing up is only part of the process. You need to create an ad that not only leads to clicks, but to sales or whatever result you're looking for. If you don't know what you're doing, it's possible to write an ad that people are drawn to and click on, however, you don't make sales. Since you pay per click, and clicks can add up quickly, you can lose money.
Organic search is extremely important for online retailers, as many studies suggest it drives around 50% of website traffic. When it comes to search engine optimization for eCommerce, marketers get obsessive about testing all methods available to them to try and achieve higher rankings. The logic is very simple: higher positions on SERPs automatically result in higher impressions and a significantly better click-through rate. More people visiting your store should ultimately translate into better conversions and higher revenues. https://youtu.be/7bNPg8UbhaE