The Coal Mining Industry And Investing In It

The History Of Coal Usage

Coal was initially used as a domestic fuel, until the industrial revolution, when coal became an integral part of manufacturing for creating electricity, transportation, heating and molding purposes. The large scale mining aspect of coal was introduced around the 18th century, and Britain was the first nation to successfully use advanced coal mining techniques, which involved underground excavation and mining.

Initially coal was scraped off the surface by different processes like drift and shaft mining. This has been done for centuries, and since the demand was quite low, these mining processes were more than enough to accommodate the demand in the market.

However, when the practical uses of using coal as fuel sparked industrial revolution, the demand for coal rose abruptly, leading to severe shortage of the coal output, gradually paving the way for new ways to extract coal from under the ground.

Coal became a popular fuel for all purposes, even to this day, due to their abundance and their ability to produce more energy per mass than other conventional solid fuels like wood. This was important as far as transportation, creating electricity and manufacturing processes are concerned, which allowed industries to use up less space and increase productivity. The usage of coal started to dwindle once alternate energies such as oil and gas began to be used in almost all processes, however, coal is still a primary fuel source for manufacturing processes to this day.

The Process Of Coal Mining

Extracting coal is a difficult and complex process. Coal is a natural resource, a fossil fuel that is a result of millions of years of decay of plants and living organisms under the ground. Some can be found on the surface, while other coal deposits are found deep underground.

Coal mining or extraction comes broadly in two different processes, surface mining, and deep excavation. The method of excavation depends on a number of different factors, such as the depth of the coal deposit below the ground, geological factors such as soil composition, topography, climate, available local resources, etc.

Surface mining is used to scrape off coal that is available on the surface, or just a few feet underground. This can even include mountains of coal deposit, which is extracted by using explosives and blowing up the mountains, later collecting the fragmented coal and process them.

Deep underground mining makes use of underground tunnels, which is built, or dug through, to reach the center of the coal deposit, from where the coal is dug out and brought to the surface by coal workers. This is perhaps the most dangerous excavation procedure, where the lives of all the miners are constantly at a risk.

Investing In Coal

Investing in coal is a safe bet. There are still large reserves of coal deposits around the world, and due to the popularity, coal will be continued to be used as fuel for manufacturing process. Every piece of investment you make in any sort of industry or a manufacturing process ultimately depends on the amount of output the industry can deliver, which is dependent on the usage of any form of fuel, and in most cases, coal.

One might argue that coal usage leads to pollution and lower standards of hygiene for coal workers. This was arguably true in former years; however, newer coal mining companies are taking steps to assure that the environmental aspects of coal mining and usage are kept minimized, all the while providing better working environment and benefits package for their workers. If you can find a mining company that promises all these, and the one that also works within the law, you can be assured safety for your investments in coal.

Source: http://ezinearticles.com/?The-Coal-Mining-Industry-And-Investing-In-It&id=5871879

Junk Car Removal Services: Lucrative Way to Bid Farewell to Scrap Cars

Are your still wondering if it is the time to call a junk car removal company?

Well, you should call a reliable scrap car removal company, when any one of the below situations is true:

- Your car has a very low trade-in value

- Despite repeated repairs, your car is not working well.

- The vehicle has been in an accident and declared a total loss.

- When you think of selling it, you hardly find any positive points to sell it for a substantial price.

- Your car has become a stationary object.

There are many important benefits of hiring scrap car removal services

- Get a good amount of cash

It may come as a surprise, but your useless car can fetch you a handsome sum. The junk car removal companies will always find something worthy of attention in your piece of junk. In fact, these companies have numerous uses for your car.

They can repair and reuse the broken-down parts of the cars. In case, your entire car has turned into scrap then too, you should contact a junk car removal company. It will save you from being duped.

These companies have experts, who can find multiple utilities for your car and quote a suitable price, accordingly.

If you try to sell your car to a scrap dealer, then you will get the price of scrap and not of the car.

- Sell any model from anywhere

A junk car removal company will never be choosy regarding the make of the car. Other alternatives like the towing companies have a definite list of models of cars that they tow. In case your vehicle does not belong in the list, then they will refuse you out rightly.

Moreover, towing companies do not have the expertise or equipment to work under challenging situations. For instance, if your scrap car has been parked for long and is stuck in debris, then a towing company may not be able to help you.

On the other hand, a junk car removal company is well equipped with work force, and the latest technology to deal with every situation.

It will reach your junk car and tow it away. When you call them for fixing an appointment, they will ask you what the destination of the car is. Provide them with the details. Then, just wait for them to arrive and help you in getting rid of the scrap.

You may have the latest model or an old one, if your car is not living up to your standards, then it is time to call the junk car removal company.

- Fix timing at your convenience and receive prompt services

When you have decided to sell your junk car to a company, you can enjoy the liberty of carrying out the transaction any time you want.

Yes, being the owner of the car, you are free to decide the timing of its pick-up. The scrap car-removal companies are very particular regarding timings.

- Environment-friendly option

The junk car removal companies adopt an earth-friendly approach while getting rid of the junk cars. A trash car pollutes the environment by releasing harmful gases. The companies ensure that every car that it has picked goes through several levels of checks.

During the process, all the parts, which can be reused in any form, are extracted and recycled. Only those parts, which cannot be put into use, in any form, are taken to the junk yard.

Thus, by opting for a scrap car removal company, you are saving the environment and helping in keeping your surroundings clean and healthy.

Source: http://ezinearticles.com/?Junk-Car-Removal-Services:-Lucrative-Way-to-Bid-Farewell-to-Scrap-Cars&id=7206487

I Don’t Need No Stinking API: Web Scraping For Fun and Profit

If you’ve ever needed to pull data from a third party website, chances are you started by checking to see if they had an official API. But did you know that there’s a source of structured data that virtually every website on the internet supports automatically, by default?
scraper toolThat’s right, we’re talking about pulling our data straight out of HTML — otherwise known as web scraping. Here’s why web scraping is awesome:

Any content that can be viewed on a webpage can be scraped. Period.

If a website provides a way for a visitor’s browser to download content and render that content in a structured way, then almost by definition, that content can be accessed programmatically. In this article, I’ll show you how.

Over the past few years, I’ve scraped dozens of websites — from music blogs and fashion retailers to the USPTO and undocumented JSON endpoints I found by inspecting network traffic in my browser.

There are some tricks that site owners will use to thwart this type of access — which we’ll dive into later — but they almost all have simple work-arounds.

Why You Should Scrape

But first we’ll start with some great reasons why you should consider web scraping first, before you start looking for APIs or RSS feeds or other, more traditional forms of structured data.

Websites are More Important Than APIs

The biggest one is that site owners generally care way more about maintaining their public-facing visitor website than they do about their structured data feeds.

We’ve seen it very publicly with Twitter clamping down on their developer ecosystem, and I’ve seen it multiple times in my projects where APIs change or feeds move without warning.

Sometimes it’s deliberate, but most of the time these sorts of problems happen because no one at the organization really cares or maintains the structured data. If it goes offline or gets horribly mangled, no one really notices.

Whereas if the website goes down or is having issues, that’s a more of an in-your-face, drop-everything-until-this-is-fixed kind of problem, and gets dealt with quickly.

No Rate-Limiting

Another thing to think about is that the concept of rate-limiting is virtually non-existent for public websites.

Aside from the occasional captchas on sign up pages, most businesses generally don’t build a lot of defenses against automated access. I’ve scraped a single site for over 4 hours at a time and not seen any issues.

Unless you’re making concurrent requests, you probably won’t be viewed as a DDOS attack, you’ll just show up as a super-avid visitor in the logs, in case anyone’s looking.

Anonymous Access

There are also fewer ways for the website’s administrators to track your behavior, which can be useful if you want gather data more privately.

With APIs, you often have to register to get a key and then send along that key with every request. But with simple HTTP requests, you’re basically anonymous besides your IP address and cookies, which can be easily spoofed.

The Data’s Already in Your Face

Web scraping is also universally available, as I mentioned earlier. You don’t have to wait for a site to open up an API or even contact anyone at the organization. Just spend some time browsing the site until you find the data you need and figure out some basic access patterns — which we’ll talk about next.

Let’s Get to Scraping

So you’ve decided you want to dive in and start grabbing data like a true hacker. Awesome.

Just like reading API docs, it takes a bit of work up front to figure out how the data is structured and how you can access it. Unlike APIs however, there’s really no documentation so you have to be a little clever about it.

I’ll share some of the tips I’ve learned along the way.

Fetching the Data

So the first thing you’re going to need to do is fetch the data. You’ll need to start by finding your “endpoints” — the URL or URLs that return the data you need.

If you know you need your information organized in a certain way — or only need a specific subset of it — you can browse through the site using their navigation. Pay attention to the URLs and how they change as you click between sections and drill down into sub-sections.

The other option for getting started is to go straight to the site’s search functionality. Try typing in a few different terms and again, pay attention to the URL and how it changes depending on what you search for. You’ll probably see a GET parameter like q= that always changes based on you search term.

Try removing other unnecessary GET parameters from the URL, until you’re left with only the ones you need to load your data. Make sure that there’s always a beginning ? to start the query string and a & between each key/value pair.

Dealing with Pagination

At this point, you should be starting to see the data you want access to, but there’s usually some sort of pagination issue keeping you from seeing all of it at once. Most regular APIs do this as well, to keep single requests from slamming the database.

Usually, clicking to page 2 adds some sort of offset= parameter to the URL, which is usually either the page number or else the number of items displayed on the page. Try changing this to some really high number and see what response you get when you “fall off the end” of the data.

With this information, you can now iterate over every page of results, incrementing the offset parameter as necessary, until you hit that “end of data” condition.

The other thing you can try doing is changing the “Display X Per Page” which most pagination UIs now have. Again, look for a new GET parameter to be appended to the URL which indicates how many items are on the page.

Try setting this to some arbitrarily large number to see if the server will return all the information you need in a single request. Sometimes there’ll be some limits enforced server-side that you can’t get around by tampering with this, but it’s still worth a shot since it can cut down on the number of pages you must paginate through to get all the data you need.

AJAX Isn’t That Bad!

Sometimes people see web pages with URL fragments # and AJAX content loading and think a site can’t be scraped. On the contrary! If a site is using AJAX to load the data, that probably makes it even easier to pull the information you need.

The AJAX response is probably coming back in some nicely-structured way (probably JSON!) in order to be rendered on the page with Javscript.

All you have to do is pull up the network tab in Web Inspector or Firebug and look through the XHR requests for the ones that seem to be pulling in your data.

Once you find it, you can leave the crufty HTML behind and focus instead on this endpoint, which is essentially an undocumented API.

(Un)structured Data?

Now that you’ve figured out how to get the data you need from the server, the somewhat tricky part is getting the data you need out of the page’s markup.

Use CSS Hooks

In my experience, this is usually straightforward since most web designers litter the markup with tons of classes and ids to provide hooks for their CSS.

You can piggyback on these to jump to the parts of the markup that contain the data you need.

Just right click on a section of information you need and pull up the Web Inspector or Firebug to look at it. Zoom up and down through the DOM tree until you find the outermost <div> around the item you want.

This <div> should be the outer wrapper around a single item you want access to. It probably has some class attribute which you can use to easily pull out all of the other wrapper elements on the page. You can then iterate over these just as you would iterate over the items returned by an API response.

A note here though: the DOM tree that is presented by the inspector isn’t always the same as the DOM tree represented by the HTML sent back by the website. It’s possible that the DOM you see in the inspector has been modified by Javascript — or sometime even the browser, if it’s in quirks mode.

Once you find the right node in the DOM tree, you should always view the source of the page (“right click” > “View Source”) to make sure the elements you need are actually showing up in the raw HTML.

This issue has caused me a number of head-scratchers.

Get a Good HTML Parsing Library

It is probably a horrible idea to try parsing the HTML of the page as a long string (although there are times I’ve needed to fall back on that). Spend some time doing research for a good HTML parsing library in your language of choice.

Most of the code I write is in Python, and I love BeautifulSoup for its error handling and super-simple API. I also love its motto:

    You didn’t write that awful page. You’re just trying to get some data out of it. Beautiful Soup is here to help. :)

You’re going to have a bad time if you try to use an XML parser since most websites out there don’t actually validate as properly formed XML (sorry XHTML!) and will give you a ton of errors.

A good library will read in the HTML that you pull in using some HTTP library (hat tip to the Requests library if you’re writing Python) and turn it into an object that you can traverse and iterate over to your heart’s content, similar to a JSON object.

Some Traps To Know About

I should mention that some websites explicitly prohibit the use of automated scraping, so it’s a good idea to read your target site’s Terms of Use to see if you’re going to make anyone upset by scraping.

For two-thirds of the website I’ve scraped, the above steps are all you need. Just fire off a request to your “endpoint” and parse the returned data.

But sometimes, you’ll find that the response you get when scraping isn’t what you saw when you visited the site yourself.

When In Doubt, Spoof Headers

Some websites require that your User Agent string is set to something they allow, or you need to set certain cookies or other headers in order to get a proper response.

Depending on the HTTP library you’re using to make requests, this is usually pretty straightforward. I just browse the site in my web browser and then grab all of the headers that my browser is automatically sending. Then I put those in a dictionary and send them along with my request.

Note that this might mean grabbing some login or other session cookie, which might identify you and make your scraping less anonymous. It’s up to you how serious of a risk that is.

Content Behind A Login

Sometimes you might need to create an account and login to access the information you need. If you have a good HTTP library that handles logins and automatically sending session cookies (did I mention how awesome Requests is?), then you just need your scraper login before it gets to work.

Note that this obviously makes you totally non-anonymous to the third party website so all of your scraping behavior is probably pretty easy to trace back to you if anyone on their side cared to look.

Rate Limiting

I’ve never actually run into this issue myself, although I did have to plan for it one time. I was using a web service that had a strict rate limit that I knew I’d exceed fairly quickly.

Since the third party service conducted rate-limiting based on IP address (stated in their docs), my solution was to put the code that hit their service into some client-side Javascript, and then send the results back to my server from each of the clients.

This way, the requests would appear to come from thousands of different places, since each client would presumably have their own unique IP address, and none of them would individually be going over the rate limit.

Depending on your application, this could work for you.

Poorly Formed Markup

Sadly, this is the one condition that there really is no cure for. If the markup doesn’t come close to validating, then the site is not only keeping you out, but also serving a degraded browsing experience to all of their visitors.

It’s worth digging into your HTML parsing library to see if there’s any setting for error tolerance. Sometimes this can help.

If not, you can always try falling back on treating the entire HTML document as a long string and do all of your parsing as string splitting or — God forbid — a giant regex.

—

Well there’s 2000 words to get you started on web scraping. Hopefully I’ve convinced you that it’s actually a legitimate way of collecting data.

It’s a real hacker challenge to read through some HTML soup and look for patterns and structure in the markup in order to pull out the data you need. It usually doesn’t take much longer than reading some API docs and getting up to speed with a client. Plus it’s way more fun!

Source: https://blog.hartleybrody.com/web-scraping/

Internet Data Mining - How Does it Help Businesses?

Internet has become an indispensable medium for people to conduct different types of businesses and transactions too. This has given rise to the employment of different internet data mining tools and strategies so that they could better their main purpose of existence on the internet platform and also increase their customer base manifold.

Internet data-mining encompasses various processes of collecting and summarizing different data from various websites or webpage contents or make use of different login procedures so that they could identify various patterns. With the help of internet data-mining it becomes extremely easy to spot a potential competitor, pep up the customer support service on the website and make it more customers oriented.

There are different types of internet data_mining techniques which include content, usage and structure mining. Content mining focuses more on the subject matter that is present on a website which includes the video, audio, images and text. Usage mining focuses on a process where the servers report the aspects accessed by users through the server access logs. This data helps in creating an effective and an efficient website structure. Structure mining focuses on the nature of connection of the websites. This is effective in finding out the similarities between various websites.

Also known as web data_mining, with the aid of the tools and the techniques, one can predict the potential growth in a selective market regarding a specific product. Data gathering has never been so easy and one could make use of a variety of tools to gather data and that too in simpler methods. With the help of the data mining tools, screen scraping, web harvesting and web crawling have become very easy and requisite data can be put readily into a usable style and format. Gathering data from anywhere in the web has become as simple as saying 1-2-3. Internet data-mining tools therefore are effective predictors of the future trends that the business might take.

If you are interested to know something more on Web Data Mining and other details, you are welcome to the Screen Scraping Technology site.

Source: http://ezinearticles.com/?Internet-Data-Mining---How-Does-it-Help-Businesses?&id=3860679

What is Blog Content Scraping?

Blog content scraping is an act usually performed with scripts that extract content from numerous sources and pulls it into one site. It is so easy now that anyone can install a WordPress site, put a free or commercial theme, and install a few plugins that will go and scrape content from selected blogs, so it can be published on their site.

Why are they Stealing my Content?

Some of our users have asked us why are they stealing my content? The simple answer is because you are AWESOME. The truth is that these content scrapers have ulterior motives. Below are just few reasons why someone would scrape your content:

•    Affiliate commission – There are some dirty affiliate marketers out there that just wants to exploit the system to make few extra bucks. They will use your content and other’s content to bring traffic to their site through search engine. These sites are usually targeted towards a specific niche, so they have related products that they are promoting.

•    Lead Generation – Often we see lawyers and realtors doing this. They want to seem like industry leaders in their small communities. They do not have the bandwidth to produce quality content, so they go out and scrape content from other sources. Sometimes, they are not even aware of this because they are paying some scumbag $30/month to add content and help them get better SEO. We have encountered quite a few of these in the past.

•    Advertising Revenue – Some folks just want to create a “hub” of knowledge. A one-stop-shop for users in a specific niche. If I had a penny for every time someone has done this with our content, then we would have a few hundred pennies. Often we notice that our site content is being scraped. The scraper always replies, I was doing this for the good of the community. Except the site is plastered with ads.

These are just a few reasons why someone would steal your content.

Source:http://www.wpbeginner.com/beginners-guide/beginners-guide-to-preventing-blog-content-scraping-in-wordpress/

Choose the Best Data Mining Company With This Simple Rule

Data mining is the analysis part of the knowledge finding in databases. It involves finding patterns in large data sets including processes like artificial intelligence, machine learning, statistics, and database systems. The main reason why companies do data mining is to transform a large set of data into understandable block of information that can be used for market knowledge. It allows companies to make informed business decisions.

Data mining was looked upon as a luxury until some time back, but businesses are waking up to the importance of the process by seeing the difference it makes. Most of the multinational corporations already have mining integrated as one of their core processes. Many companies don't make strategic decisions unless they have the complete data converted into useful information using mining techniques. However, it is not a cheap process and would require being put to good use in order to be able to justify its cost. This results in a demand of a data mining company that could fulfill the client's needs by being resourceful and economical at the same time.

Searching for the perfect data mining company for your business could become a lot easier if you follow one simple rule. The rule is to make sure you make enough strategic decisions that result in good profit or at least break even with a single session of mining the data, which allows you to justify the cost you put into the whole process. Then, choose the company that offers you the best quotation which allows you to maximize your profits and improve your business processes even more.

Most companies are not very stringent with their plans and pricing and would be happy to go that extra mile in order to help the client. That extra mile could include offering a discount on the whole process, or offering added services or extended time period in the same package and price as quoted. The way you negotiate with the company will decide the profit that you will make from the entire data mining process.

Data mining will not only improve your business decisions, it will improve your business processes as a whole. If used correctly, it will allow you to extract more out of the limited resources. It allows you to have comprehensive real time market knowledge that always keeps you ahead of your competitors. Therefore, putting in a few extra bucks to integrate it into your core business process is a really good idea. As mentioned earlier, if used correctly then it will not only justify its own cost but also increase profits manifold.

Choose the right company by integrating the whole process in your business and make the most of the market knowledge that is present on the internet. The power to make the best and the most informed decisions lies in your own hands, and data mining is one approach that will certainly get you a lot closer to your business goals.

Source:http://ezinearticles.com/?Choose-the-Best-Data-Mining-Company-With-This-Simple-Rule&id=8784911

Web Scraping Services, Data Recovery Software Adaptation Actions

Site scraping, also known as Web data mining, or Web harvesting, data mining software is a web site. Web scraping is closely related and similar web index, index Web content. Index of the pages is on most machines. The site scraping the difference between the focus on the translation of unstructured content network, usually rich text format, such as HTML, you should direct them to analyze data, and other spreadsheet or database. Network Piquing also makes web browsing more efficient and user productivity.

For example, the website, scraping compare prices on the Internet, automatic monitoring, and integrated changes in site identification and information. Agency enforcement actions and use of data scraping method to generate the benefits of file information relating to crime and criminal behavior.

Researchers have the interests of the pharmaceutical industry and network use scraping to collect information and statistical analysis of disease such as AIDS and influenza-like swine flu from the recent Influenza A (H1N1) epidemic. Run a program automatically when the data scraping is the only easy to collect data from another program.

Data scraping is a programmer product line generated by the system, it is no longer a useful way to date equipment. Generated data, and through the use of stripping data designed for use by the user. This clever, it is used to the software code can be used for public institutions.

A leading provider of Web scraping software's provides a wide range of user-based services company, can be cheap and easy way to extract and manage network data. Individuals can use to set up agents to seek regular information, then stores this information, and eventually released the information in several places. When the data system, individuals can change and reuse of these data and other applications, or simply use its intelligence.

All information is the host of safety and health classes and data warehousing, and by the user through the Internet Security Web console access. Some of the more software is called. Harvest is used to create a competitive intelligence and market information on the Web scrapers and network search. Script, network scraper can be stored in the form used will soon be ready.

Allow from all types of web pages, dynamic Ajax pages mark the safe area behind the complex unstructured HTML pages, and more data recovery software, to support adaptation actions. The software can also be exported in various formats, such as the data in Excel and other database programs. Web scraping software is used to collect too much information, no problem with a revolutionary device.

The program has the impact of many people or companies need to apply for comparable data from the Internet in different places, and useful information on the situation. A wide range of information, in a very short time detection method is relatively easy, very cost effective. The purpose of Web scraping software is used every day of commercial applications, and more data recovery software, to support adaptation actions.

The software can also be exported in various formats, such as the data in Excel and other database programs. Web scraping software is used to collect too much information, no problem with a revolutionary device. The pharmaceutical industry, meteorology, law enforcement agencies and government agencies.

Source:http://www.articlesbase.com/outsourcing-articles/web-scraping-services-data-recovery-software-adaptation-actions-5884907.html