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An Insight Into the Latest MEMS Vibrational Micro Power Generation Methodology

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An Insight Into the Latest MEMS Vibrational Micro Power Generation Methodology 11

The market for wireless sensor networks is growing rapidly, but it’s still somewhat restricted by the existing batteries with short lifetimes. Introducing a virtually infinite alternate green source of power to the conventional energy sources will considerably expand WSN and other similar applications in near future, but it may still take a few years time. MEMS vibrational micro power generation is one method that has seen a drastic increase in power harvesting usage over the last couple of years, and this methodology certainly looks quite promising, to say the least.

An Insight Into the Latest MEMS Vibrational Micro Power Generation Methodology 12

Many new-fangled devices are tapping the vibrations in their surroundings to produce useful energy. Several wireless and sensor technologies present very few power requirements so that just a few microwatts or power of even lesser magnitude are adequate to measure and transmit small quantities of information to a dashboard or receiver close by.

VEH (Vibrational energy harvesting) with MEMS is tremendously helping in achieving the eventual objective of battery-free, wireless, autonomous sensing, testing, and reporting.

Of late, powering wireless networks and sensors with such vibrational power sources has been considered for industrial applications and is undergoing field testing in several applications wherein thermal or solar energy sources can’t be utilized. Few of the industries where it finds use include structural monitoring, industrial process control, roads & bridges, appliances, human power, environmental, machine monitoring, aerospace, automotive, and home automation.

Several varying MEMS VEH processes and device designs have illustrated that adequate power production is possible easily, in order to charge a battery or beam data wirelessly by mainly using piezoelectric or electrostatic techniques; electromagnetic methods are also used rarely. Usually, a moving spring is utilized to function and return maximum power at particular frequencies.

MEMS technologies and devices have assembled and changed such vibrations into useful electrical energy, provided that these vibrations occur in a narrow frequency range. But a majority of the devices operate at different speeds and feature distinct vibration profiles.

Vibrational Confrontations

The challenges faced by harvesters of vibrational energy mainly revolve around finding the ideal device that can be utilized for a particular frequency and deriving adequate power from those frequencies for sufficiently long intervals of time. The only goal of vibration harvesting is certainly finding a broad-frequency or a device whose power harvesting capability does not fall steeply near a resonant frequency, so as to keep capturing power with the change in vibrations. However, it turns out to be a costly affair to make use of an array of harvesters with each of them being tuned to different frequencies.

Innovative Solutions

The designs of MEMS VEH are improving; a recent report discussed the strategies that were publicly accessible in order to extend the vibrational frequency range of micro-range VEH, including but not limited to –

  • Tuning the system periodically with electrical or mechanical techniques, consuming power continuously or intermittently
  • Bandwidth widening by using a mechanical stopper, a generator array, bi-stable structure, or nonlinear springs.

Piezoelectric tuning along with an active powered feedback loop was adopted by the researchers at CEA-Lab for Electronics & Information Technology in France. They discovered that it could automatically tune the system to enhance the bandwidth by almost one-third of the resonant frequency, costing less than 5µ watts. The non-linear springs that were implemented could improve the vibration amplitude and frequency range.

An Insight Into the Latest MEMS Vibrational Micro Power Generation Methodology 13

With such creative solutions, MEMS vibrational micropower generation devices have turned out to be a fantastic option for commercial usage, and are certainly expected to become one of the most promising technologies of the future.
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Robin Gupta is a renowned guest posting reseller who has been offering a wide range of guest posting services to online marketers. They have been taking the advantage of using his services.

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Data Center Intrusions: No Sign of Improvement

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Data Breach Infographic

Data Breach Infographic developed by LifeLock.com

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Reasons to Switch to a Virtual Office

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Reasons to Switch to a Virtual Office 16

According to a recent study conducted by Stanford University, about 10 percent of the United States work force reports working from home (or telecommuting) at least one day per week. The study revealed what many business managers were already discovering: that working from home really works. Virtual offices lower operations costs and, surprisingly, can boost productivity.Contemporary home worker

If you’re a business owner or a cubicle-bound professional, it may be time to cut your desk leash and conduct business on the go.

The Stats

According to a recent Huffington post article, the share of employers in the U.S. who allow employees to work from home has more than doubled since 2005 to a whopping 63 percent. The reasons behind this shift are telling. In the Stanford University study, a travel company named based in China named CTrip employs 16,000 people and found that over a nine-month period, productivity spiked in the employees who were allowed to work from home. Now, the company officials randomly chose call center employees who had volunteered to participate in the study. As the experiment went on, company officials noticed fewer breaks and sick days as well as more calls per minute. After having this proof, along with increased job satisfaction, CTrip officials rolled out a larger work-from-home group and experienced a 22 percent gain.

While that is truly impressive, what does this mean for smaller businesses? Well, with fewer employees, every upswing in productivity is noticeable. In fact, according to http://www.internetproviders.com, virtual meetings will save your business both time AND money. That’s good news no matter the size of your business.

The Savings

A move from a conventional office to a virtual office has bottom-line implications. The money your business spends on rent, air conditioning, water services, coffee/tea, maintenance and other overhead expenses can easily be diverted to other business functions. Technology reduces the need for a centralized office. With so many Wi-Fi-ready coffee shops, book stores and libraries, virtual offices can spend the monthly Internet fee on purchases that promote growth. The flexibility gives employees the opportunity to “get close” to their customers as well, going to meet local customers (if that is part of your business structure) or responding with lightning speed to requests from customers further away.

Much of today’s business is moving slowly and steadily to “the cloud.” Essentially, storing data or other information on traditional servers can be costly. In fact, most dedicated servers are run on stand-alone computers. You’ll likely have to have IT professionals in place or on standby, in case something happens which causes those servers to go down. With cloud computing, you’ll not only save money on servers, you’ll also remove the need for an in-house IT department. Instead, remote cloud-computing experts handle this efficient technology.

The Work

Modern business guru Seth Godin speaks to the creativity boost that the virtual office brings into the equation. On his blog, he suggests that shows like “The Office” will soon be a “quaint antique” with the boosts in creativity and production along with the massive drop in overhead costs. The home office (or anywhere else the employee chooses to work) is a fresh environment that can help to inspire the innovation and creativity that all businesses strive and long for.

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The Problem with Plugins

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The Problem with Plugins 17

I’m sure that you don’t need me to tell you that WordPress is huge. Let’s look at the statistics – at the time of writing, there were just under 65 million WordPress sites in the world, and over 371 million people view more than 4.1 billion WordPress pages every month.

 Wordpress Plugins

That’s just for WordPress.com – self-hosted WordPress.org sites are arguably even more popular, thanks to their adaptability and the ease of use that the CMS offers. In fact, TechCrunch, CNN and the NFL all use WordPress sites, and it’s likely that WordPress as a CMS will continue to see dramatic growth.

Now, don’t get me wrong – I love third-party plugins, they can offer a whole host of new functionality to your website and enable you to do things that you never even dreamed of. But they can also cause problems, particularly if you’re plugin happy and install everything that you can find.

Here are some of the most common problems that WordPress plugins cause, along with a few hints on what you can do to avoid them.

Security vulnerabilities

Let’s jump in at the deep-end – the worst-case scenario is that you’ll install a plugin which opens up a huge security vulnerability, allowing hackers or even the plugin’s developer to access the back-end of your website.

And it’s not always because of a malicious developer, too – take this case from a couple of years ago, when three popular plugins had unwanted backdoors added to them. Luckily, in this case, WordPress reacted quickly to reset all users’ passwords as a precaution and no lasting damage was done.

Of course, some other plugins are designed specifically to try and catch an unsuspecting admin out, and you need to look out for the warning signs. But don’t worry, help is at hand!

What to do: Change your password regularly, and use a separate password for your WordPress site than you do for all of the other sites that you frequent. Also, consider using a .htaccess file that blocks anyone from accessing your admin panel unless they’re logging in from your IP address(es). Make sure that you update your plugins whenever new versions are released (checking several times a week), so that you’re not running outdated software that might not have been patched. And finally, always take a look at the rating of the plug-in on the WordPress.org website – if it has a low rating, other admins have probably experienced problems.

Clashes with other plugins

Unfortunately, not all plugins were created equal – a quick Google search turns up over 550,000 results for ‘WordPress plugin clash’. The sad fact is that, on the odd occasion, two different plugins are completely incompatible, often due to duplicate variables, or two lines of code that get stuck in a loop.

Worse still, many developers aren’t aware of these clashes – there are just too many plugins out there for even the most dedicated development teams to test their work against every other plugin on the market.

What to do: If you can track them down, report the problem to the developers – if they’re still supporting the plugin, they’ll probably fix the bug for future releases. If you can’t find them, or if the plugin is no longer supported, you’re just going to have to avoid using whichever plugin you value the least. To make matters worse, if you really need the new plugin and you’re not sure which of your existing plugins it’s crashing with, you’re just going to have to try deactivating plugins in batches of three to try and narrow down which one is causing the problem. Oh, and have a look around online first to make sure that it is a clash, and that it’s not just a plugin that doesn’t work.

Faulty plugins

As we’ve just established, not every plugin works first time, and quite a few of them no longer work at all. In these circumstances, you’ll find that you’ve installed and activated the plugin, but it’s not having the desired effect. Now what can you do?

What to do: Unfortunately, if the plugin doesn’t work, all you can do is report it to the developers, give the plugin a poor rating on WordPress.org to warn other admins, and move on. See if you can find another plugin that does the same thing, and try that instead.

Unsupported plugins

Let’s presume that you’ve pinpointed a problem and you want to report it to the developers. How do you go about doing that? Well, the first step is to find the plugin’s page on WordPress.org and click on the ‘support’ tab – with a bit of luck, you’ll be shown a list of recent posts about the plugin, and you’ll be able to raise your own issue here.

Alternatively, most plugins have either an author bio alongside them, and you’ll be able to find more information about the developers here. It’s also worth checking any documentation that came with the plugin.

But if you use enough plugins, you’ll eventually find a plugin that doesn’t include any developer information or documentation, and you’ll be left scratching your head and wondering what to do next.

What to do: Have a look around on Google and see if you can find someone else that’s had a similar problem. If it’s a popular plugin, you might well find that someone has already encountered and solved the problem, documenting the process along the way. If not, you’re out of luck – you’ll just have to remove the plugin and move on.

Not specifically designed for the site

Even if you find that your plugin is working correctly, it might not fit the look and theme of your website. This is quite a common pitfall, and one that’s impossible for developers to predict – they design their plugins to work on as many themes as possible, paying particular attention to the most popular ones during their testing, but it’s just not possible for them to guarantee that their plugin will display correctly on whatever theme that you’re using.

What to do: Learn how to use CSS and play around with the plugin’s stylesheets – you might find that you’re able to correct the issue yourself. Depending upon your budget, it’s also worth looking for a freelance developer who may be able to come up with a fix. If all else fails, report the bug to the developers, but they’re less likely to correct an issue with how the plugin displays than they are to correct a problem that stops it from working altogether.

Slowing the load time

Let’s presume that everything is working correctly, that it all displays fine on your modified template and that the plugin does everything you were hoping for. But then you load up your website and spot a noticeable difference in the amount of time that it takes for your pages to load.

This is even more important in the age of Google – they found that when they ranked slow websites in their results pages, people actually used the search engine less frequently. Because of this, they now take loading times into account when they generate their results. It’s not just Google, either – Shopzilla shaved three seconds off their loading time, and experienced a 25% increase in page views and an increase in revenue of up to 12%.

What to do: Deactivate any plugins that you aren’t using, and investigate Google’s Webmaster Tools – they can increase your loading speed by up to 60%, by using a couple of innovative techniques. First off, they’ll pre-load information in anticipation of a user clicking through to the most popular pages. Secondly, they’ll defer the less important information and get it to load after everything else on the page has displayed.

As long as you’re sensible and look out for the warning signs, there’s no reason that you can’t add plugins safely and securely to your WordPress website. There are also other things that you can do, like backing up your database and your website files, to ensure that even if there is a problem, it won’t knock your site out of commission for good.

What WordPress plugins do you use? Have you ever experienced a problem? Let me know with a comment!

Author Bio:

Dane Cobain is a social media specialist for UK-based creative agency fst the Group. He’s also a gadget-lover and tech fanatic, as well as an internet addict.

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