August 26, 2010, 11:19 PM CT
Single-Spin Magnetoelectronics
The integration of single-spin magnetoelectronics into standard silicon technology may soon be possible, if experiments confirm a new theoretical prediction by physicists at the Naval Research Laboratory and the University of Wisconsin-Madison. The scientists predict that a family of well-known silicon surfaces, stabilized by small amounts of gold atoms, is intrinsically magnetic despite having no magnetic elements. None of these surfaces has yet been investigated experimentally for magnetism, but the new predictions are already supported indirectly by existing data. The complete findings of the study are reported in the August 24, 2010, issue of the journal Nature Communications. Silicon provides a unique entry point for combining magnetoelectronics based on single spins with standard electronics technology. If a single-spin device can be built on a silicon wafer, input and output electronics can be directly integrated with the magnetic part of the device. This has been an obstacle for current spintronics approaches. For example, spin injection from a metal into silicon is very inefficient unless the metal/semiconductor interface is carefully optimized. These latest results have the advantage that nature itself guides, by a self-assembly process, the formation of long chains of polarized electron spins with atomically precise structural order. "This integration of structural and magnetic order is crucial for future technologies based on single spins at the atomic level" said Dr. Steven Erwin, a physicist at NRL and lead theorist on the project.........
Posted by: John Read more Source
June 24, 2010, 10:10 PM CT
New chemical method important to drug design
Donald Watson
Photo by Kathy F. Atkinson
University of Delaware scientist Donald Watson is part of a research team that has discovered an easier method for incorporating fluorine into organic molecules, giving chemists an important new tool in developing materials ranging from new medicines to agricultural chemicals. The research, which is published in the June 25 edition of Science, was led by Stephen Buchwald, the Camille Dreyfus Professor of Chemistry at the Massachusetts Institute of Technology. Watson worked in Buchwald's lab at MIT as a postdoctoral research associate previous to joining the UD Department of Chemistry and Biochemistry as an assistant professor this past September. About 25 percent of pharmaceuticals contain fluorine, as per Watson, but it's difficult to incorporate the element into drug molecules. Numerous scientists have been working to develop general methods to introduce fluorine atoms into organic molecules under mild reaction conditions. "The introduction of fluorine atoms into a pharmaceutical compound can have pronounced effects," Watson notes. "They can modulate the uptake of the drug and stabilize it against metabolism by the body, keeping it in a person's system longer and making it more effective". The chemical method discovered by the research team uses a soluble palladium (a precious metal) catalyst to replace a chlorine atom in an aromatic molecule with a trifluoromethyl (CF3) group, which contains one carbon and three fluorine atoms. The process is highly general and occurs under mild conditions, and appears to become even more economical in the future as less expensive reagents are identified, Watson says.........
Posted by: John Read more Source
Sun, 20 Jun 2010 00:16:27 GMT
Thinking Of Getting Another LCD TV?
I was at the local mall the other day, searching for a replacement for my aging Sanyo ST-21SS1, a 21-inch conventional CRT television that just didn't make the cut on the type of entertainment for a wired home I had been looking for since last year.
Truth is, I want a complete HDTV home entertainment sytem, and I've been roaming the city with my sights on getting it. Unfortunately, the budget doesn't allow it so I have to settle for something affordable, and an HDTV, sans the other fancy equipment, seems the way to go. It will also work just fine with direct tv hd receivers.
During my mall tour, if you can call it that, I've seen a few LCD TVs that might suit my needs. But since I'm a sucker for brand names, I often take just one look at those wallet-friendly (read: cheap) television sets and decide that they're not worth the money I'll spend on them.
I was just about to call it quits and settle for upgrading my Sanyo television by attaching a stronger sound system when I decided to seek the HDTV model of my dreams on the Internet. I found jut what I was looking for: the new Samsung LCD TV Series 4.
© Samsung
This 26-inch beauty with 1366 x 768 resolution is Samsung's latest offering to HDTV fanatics. It boasts plug-and-play connectivity for most digital camera and video equipment models courtesy of its USB and HDMI slots. To spice up your HDTV experience even more, the Samsung LCD TV Series 4's Anynet+ gives you one-touch control over all attached Samsung audio and video devices, making the setting up a home theatre system a cinch.
Go check out the Samsung LCD TV Series 4's other features on the Samsung website or the nearest mall.
Posted by: Linda Read more Source
May 21, 2010, 7:17 AM CT
When it comes to security, think 'natural'
Mine-resistant, ambush-protected vehicles helped reduce the death toll from roadside bombs in Afghanistan and Iraq, but they lack flexibility and agility.
Credit: Photo courtesy of U.S. Army
Security systems could be more effective if officials looked at how organisms deal with threats in the natural world, University of Arizona scientists suggest in the May 20 edition of the journal NatureThe authors are working with security and disaster management officials to help put some of their recommendations such as decentralizing forces and forming alliances into practice. "Anytime you have the illusion of full security, you get adaptation," said Rafe Sagarin, an assistant research scientist in the UA's Institute of the Environment who is the main author of the opinion piece. "Terrorists figure out unexpected means of attack, hackers come up with new software to break through firewalls, and pathogens develop resistance to antibiotics". Instead of relying on large, centralized bureaucracies that move slowly and often lag behind in addressing threats, the authors encourage officials to look to the natural world for principles that could prove less costly, more flexible and more effective at countering threats. The security issues of modern human societies are analogous to those of a number of organisms, as per Sagarin and his co-authors. In nature, risks are frequent, variable and uncertain. Over billions of years, organisms have evolved an enormous variety of methods to survive, grow and proliferate on a continually changing planet. The key to their success is their ability to quickly adapt to rapidly changing threats, and change their structures, behaviors and interactions accordingly.........
Posted by: Edwin Read more Source
Thu, 01 Apr 2010 13:00:14 GMT
Speed Up Your Digital Photo Post Processing
Anything that will increase a computer's overall processing speed is always welcome, and users of digital graphics programs, such as we digital photographers, can always use more computer speed.
Anyone who has ever run the full blown Photoshop programs knows what I'm talking about so let's clean up those hard drives and at the same time recover lost files.
"Wise Disk Cleaner 5.2 Professional", by WiseCleaner.com, searches for duplicate files and other extraneous bits and pieces of code that are no longer required and sweeps your hard drive clean.
This free, versatile program also performs other important functions such as lost file recovery.
Here's where you can get today's free software download.
Take a camera with you whenever possible, and look around, you'll find a picture somewhere.
Photo Source:www.wisecleaner.com
Posted by: Karen Read more Source
March 15, 2010, 11:41 AM CT
Mobile Phone Service Providers Look To Snare New Customers With Free Gadgets
As technology in the mobile phone industry has advanced so rapidly over the last 12 months - particularly with the advent of many new smart phones - and with such a large selection of similar handsets available from different manufacturers offering similar features at equally competitive tariffs, mobile phone service providers are now seeking new marketing angles and unique selling points in order to try and differentiate themselves in a highly competitive and largely saturated marketplace. Some providers are now turning away from the frequently available free handsets, minutes and text bundles that have traditionally provided the bait for snaring new customers and are instead offering a selection of alternative gadgets and tech products such as free HDTVs, Xbox 360s, laptops or a free Nintendo Wii as incentives to attract new business and make them stand out from the crowd. This has proved a logical step for service providers not only from a sales and marketing stance, but also as modern smart phone technology can often be synchronised and used in conjunction with such products in order to further advance the user experience and help them get the most out of their new handsets. Indeed, this integration of technology through a number of electronic mediums is seemingly becoming central to users in the digital era, as telecommunications and social networking begin to merge to provide the user with 24 hour virtual interaction with the world around them – and the telecommunications industry seems to have latched onto this in order to differentiate themselves in a busy and highly competitive yet lucrative marketplace.........
Posted by: John Read more Source
March 10, 2010, 9:17 PM CT
Reduce your overheads with VMware hosting
Businesses have had a hard time of late with the global recession which has affected all of us in one way or another. Companies are looking for ways to tighten their belts and reduce their overheads and one method that has emerged is the use of VMware hosting solutions for their IT needs.
VMware hosting can be an especially prudent investment for SMEs with relatively few IT requirements where buying and maintaining a server in house, which may only be using a fraction of its capacity to run the email and data systems, just does not make sense anymore. Plus with an in house server you need an in house IT team to look after it, deal with issues and software updates and you run the risk of downtime if the server breaks down.
What is VMware Hosting
VMware technology allows a server to be compartmentalised, with each compartment acting as a virtual server in its own right and running its own operating system. Hosting companies can offer hosting on server stacks running VMware technology and support the IT requirements of multiple companies on a fraction of the hardware and energy that would be being used if each company were using their own in house systems. As the cost of running and supporting the systems is spread across the clients, the hosting companies can offer the services at much lower cost to each client than if they kept everything in house.
100% run time
Because a VMware hosting company is running a number of servers, they can move hosting around on the machines to allow for software upgrades or maintenance on any one machine that requires it without downtime of service for any of it's clients.
Green hosting
With multiple companies hosting their IT requirements on a reduced number of servers, the overall energy consumption for running and supporting the systems is reduced helping to lower the environmental impact and lower each company's carbon footprint.
For more information on how VMware hosting can benefit your business, visit www.commensus.com
Posted by: John Read more Source
March 10, 2010, 9:09 PM CT
Low cost Linux virtual hosting
Linux is a free open source operating system based on the Unix operating system and is a popular alternative to others (such as Microsoft) due to it's versatility. Additionally, Linux servers which most often run a platform of Linux, Apache, MySQL, Perl/PHP/Python have become very popular with web developers and in turn many businesses have websites and systems run on this software. In fact, IBM has chosen Linux to be the operating system on their Sequioa supercomputer due to be unveiled in 2011.
Linux virtual hosting has emerged as a service for companies running their IT systems on the Linux platform. It offers them the opportunity to outsource their IT requirements to specialised hosting companies who run virtual servers - server machines which have been compartmentalised, with each compartment running its own operating system and acting as an individual server.
This can be a very low cost solution which can really benefit small to medium businesses who are trying to lower overheads as we emerge from the recent recession. Plus, the nature of the virtual hosting system and the Linux platform allow perfectly for scalability as your business grows. As your needs increase, your hosting company can increase the server space available and add extra software applications, updates etc as you require them.
Switchlink can offer you Linux server hosting from as little as £5.99 a month. Find out more on their website at www.switchlink.co.uk
Posted by: John Read more Source
March 8, 2010, 9:14 AM CT
A high-tech handrest
A prototype of the Active Handrest is shown here with a person using it to manipulate a stylus for writing or drawing. It was developed by University of Utah mechanical engineers as a way to let surgeons, machinists, artists and others precisely control scalpels, tools, brushes and other objects over a wider workspace than normally is possible. The person using the device places an elbow on an elbow rest and the hand on a motorized handrest equipped with a force sensor. The handrest can move any direction within a horizontal plane in response to pressure exerted by the user. A study of the device shows it allows better control of tools than other support devices, and with less fatigue. Motors controlling the device protrude from the lower left and lower right.
Credit: University of Utah.
University of Utah engineers developed a computer-controlled, motorized hand and arm support that will let doctors, artists and others precisely control scalpels, brushes and tools over a wider area than otherwise possible, and with less fatigue. "We've invented a new device the Active Handrest that's useful for aiding people in performing precision tasks with their hands such as surgery, painting, electronics repair or other tasks that require precise control of the fingertips," says William Provancher, an assistant professor of mechanical engineering. A patent on the device is pending, and Provancher says he may form a spin-off company to commercialize it, or may license it to companies that produce touch-feedback devices, make robotic surgery equipment, produce art or refurbish electronics. Provancher will discuss development and testing of the Active Handrest on March 25, during the Institute of Electrical and Electronics Engineers' Haptics Symposium in Waltham, Mass. Haptics is to the sense of touch as optics is to the sense of sight. "The Active Handrest would benefit surgeons and other medical personnel, artists, machinists, workers performing pick-and-place tasks, or anyone requiring dexterous control of tools," Provancher wrote in a paper prepared for the meeting.........
Posted by: John Read more Source
February 26, 2010, 11:42 PM CT
A Guide to Choosing from Different Types of Headsets
Technology is so advanced these days that life is becoming more and more effortless with each passing day. Take for example the recent introduction of G4 Bluetooth by Cardo Systems. These little devices are basically designed for bikers so that they can converse with each other while riding on the same bike or on different bikes. Hence, even bikers also can keep in touch with each other while riding bikes. There are different types of headsets available in the market today. There are user specific headsets and you can choose the one that suits all your requirements. The following list will help you decide which one would be best suited to you and will fulfill all your needs. Business and Telephone HeadsetsHeadsets for home or business purposes come with wired or wireless features. Today the wireless varieties come with noise cancelling technologies and hence, they are apt for business environments. You can easily use them during long important conversations so that you don’t miss any minute details in noisy environments. At the same time the wireless ones come in very handy in your home as well as in the office as you can perform other tasks and carry on a telephonic conversation simultaneously. VOIP Headsets........
Posted by: John Read more Source
February 24, 2010, 9:54 PM CT
Still haven't found the right web hosting provider for your website?
One of the reasons why a lot have been setting up their own websites either for personal or for business is that there's just so many options to choose from these days. But sometimes, the more choices there are, the more confusing it is to actually choose the right provider.
If you don't want to spend much or to spend at all on a hosting provider, then you might be looking for something like a free hosting package. Although, there are a lot of web hosts who offer free hosting, not all of them are quite nice neither for your website nor worth your time. Some web hosts actually put annoying ads, even pop-ups on your site in exchange for the free service they provide. Your site may look very unprofessional and you're not even going to get any share from it either. And others are just simply not capable enough of providing you a good and reliable hosting.
Doteasy, on the other hand, is one of the leading domain name registrars that also provide web hosting services. What sets them apart from other web hosts is that they offer really low prices without sacrificing the quality of service they provide. Their unlimited hosting plan which is perfect for a business website starts at only $9.95 per month. And if you want to first test how reliable their service is, you can actually try out their free web hosting package which is completely free. No set up fee and no monthly fee. Aside from that, they currently have a promo which lets their customers register for any domain name for only $5.95 and already get a free hosting package with it.
If you want to take advantage of this great promo, just use the coupon code 100223DN when registering, or click the link below.
https://www.doteasy.com/SignUp4/index.cfm?coupon=100223DN
Posted by: Milan Read more Source
February 18, 2010, 9:56 PM CT
Stitching together lab-on-a-chip
Cotton thread, shown in this close-up image, provides a simple way to transport fluids for low-cost "lab-on-a-chip" tests for detecting disease and other purposes.
Credit: Wei Shen
Researchers in Australia are reporting the first use of ordinary cotton thread and sewing needles to literally stitch together a microfluidic analytical device microscopic technology that can transport fluids for medical tests and other purposes in a lab-on-a-chip. The chips shrink room-sized diagnostic testing equipment down to the size of a postage stamp, and promise revolutionary applications in medicine, environmental sensing, and other areas. Their study is in ACS Applied Materials & Interfaces, a monthly journal. Wei Shen and his colleagues note that the development of low-cost "lab-on-a-chip" diagnostic tests has become an attractive area of research. Existing devices require etching microscopic channels onto slivers of silicon, glass, ceramics, or metal in a costly, complicated process. The researchers set out to find an alternative, and did so with cotton thread, which wicks fluids along its tiny fibers. They stitched thread into paper to form microfluidic sensors capable of detecting and measuring substances released in the urine of patients with several human medical conditions. "The fabrication of thread-based microfluidic devices is simple and relatively low cost because it requires only sewing needles or household sewing machines," the report said. "Our results demonstrate that thread is a suitable material for fabricating microfluidic diagnostic devices for monitoring human health, environment and food safety, particularly for the population in less-industrialized areas or remote regions".........
Posted by: John Read more Source
Mon, 25 Jan 2010 05:22:16 GMT
Epson Artisan 810 Multifunction Printer
For most people space is at a premium and even though they have become household necessities, a computer printer, fax machine, digital scanner and a photocopier take up too much room.
So the answer is the popular, "all-in-one unit", or "multifunction device", as they are now called, but are they as good as separate units?
The latest entry by Epson in this crowded field is their Artisan 810 and it looks like an all around winner.
This puppy does everything, except scan negatives, and is Wi-Fi and Ethernet connectable so check out Epson's Artisan 810 Multifunction Device.
Take a camera with you whenever possible, and look around, you'll find a picture somewhere.
Photo Source: www.imaging-resource.com
Posted by: Karen Read more Source
Mon, 18 Jan 2010 03:42:32 GMT
Photo service for parents
Grow Show is a cool new service which lets you upload photos of your children to build a physical time-lapse photo frame which shows off your little ones as they grow up. The clever bit comes with the magnetic frame system called Grow Frame Timelapse, which lets you add, arrange and group images in all sorts of interesting ways, as well as cope with multiple siblings.
The only thing we can confidently say is that this will eventually embarrass your adult child/s immensely, but that’s half the fun right? Priced from $11.95 for a single frame or $29.95 for a sequence frame of 6 images. There’s probably also a charge for the photo printing service itself, but the company cunningly refuses to display it on the website, which is seriously naff.
GrowShow is the only web service with a focus on time-lapsing the growth of a child. Time sequencing is automatic and easy, because GrowShow reads the date of capture on your photos so correct time ordering “just happens”. It’s fun to build your timelapse sequence (called a “GrowSlide”), amazing to visualize the change of a growing child, fun to share, and free to use. You can then use this timelapse sequence to build a “GrowPrint”, which is delivered to you framed in whole new way.
Posted by: Redferret Read more Source
January 12, 2010, 8:53 AM CT
Faster and More Efficient Software for the Air Force
Dr. Myra Cohen and her team of researchers at the University of Nebraska in Lincoln have addressed the issue of faulty software. They have developed an algorithm and open source tool that is 300 times faster at generating tests and also reduces the time of software testing over its predecessor. (Credit: University of Nebraska,
Scientists at the University of Nebraska in Lincoln have addressed the issue of faulty software by developing an algorithm and open source tool that is 300 times faster at generating tests and also reduces current software testing time. The new algorithm has potential to increase the efficiency of the software testing process across systems. The project, funded in part by an Air Force Office of Scientific Research (AFOSR) Young Investigator Award and through a National Science Foundation Early CAREER Award, is of particular interest to the military because of the potential to reduce errors in theater. This technology will also be helpful to the private sector where some agencies are reporting financial losses of up to 50 billion dollars per year because of poor software. "Software failures have the potential to cause financial, environmental or bodily harm," said lead researcher, Dr. Myra Cohen. "Our techniques will help to improve the quality of software in the military to help ensure that those systems behave properly in the field". "The ultimate goal of research like this is not just to reduce software testing costs, but to do so while maintaining or even increasing confidence in the tests themselves," said AFOSR Program Manager, Dr. David Luginbuhl who is overseeing Cohen's work.........
Posted by: John Read more Source
Fri, 25 Dec 2009 05:16:38 GMT
Free Online Digital Photography Magazine
Here's a stocking stuffer type of gift for the digital photographer compliments of "Whatdigitalcamera.com".
"Whatdigitalcamera.com" is a website you should know about if you're looking for a place with information about virtually every aspect of digital photography.
They are also offering a free subscription to their interactive magazine which is not only fun to use but it contains valuable information.
Here's the link to the "Whatdigitalcamera.com" website, and this link takes you to the fascinating interactive online magazine "Better Digital Photography".
Take a camera with you whenever possible, and look around, you'll find a picture somewhere.
Photo Source: www.whatdigitalcamera.com
Posted by: Karen Read more Source
Thu, 24 Dec 2009 04:57:32 GMT
Automatically record every phone call
This USB Recording Box may look like nothing, but it’s chunky enough to automatically record all the telephone conversations coming in and going out from your building. Throw in some sophisticated call management and related information software, backup and line testing smarts and you’ve got yourself a right fancy package. And available in multi-colours too?
Telephone recording system is widely used, for call recording, in a variety of commercial, industrial and services applications, with unique value in recording real scenes and increasing working efficiency. There are many typical scenarios of Telephone recording system’s applications. For example: communication recording in business negotiations, recording and playback personal calls, call recording in service industry — such as hotlines, customer complaint, paging service, telephone sales, financial and securities services etc…
Posted by: Redferret Read more Source
Thu, 19 Nov 2009 14:18:20 GMT
Cooking on the Road
People and lawmakers complain that drivers don"t need additional distractions from the task at hand and hence love to crack down on talking on the phone, texting, or even putting a cell near one"s head. As such, as hard as it is top believe, one company believes there will be a market for those individuals who wish to make a grilled cheese sandwich on their way to work. There are no laws on the books about driving and cooking sandwiches so why not? The Road Pro 12-Volt Sandwich Maker let"s anyone with a car become a quick-order chef. The unit plugs directly into the cigarette lighter socket, features non-stick cooking plates, has a 5-foot power cord & a 90-day manufacturers warranty. Best of it all it goes for only $20. And to think, a few years ago it was suggested that listening to the radio while driving was too dangerous to consider! Here"s one of several online retailers hoping the Road Pro will appeal to the driver on your shopping list this holiday season.
Posted by: Jeff Read more Source
Mon, 28 Sep 2009 03:55:37 GMT
Cheat sheets galore for free, just print and go
Oh, boy, here"s a treasure. TechPosters offers hundreds of printable cheat sheets for nearly any piece of software, and some hardware too.
For free.
Lots of this stuff is nerd nirvana, but there"s plenty for lesser mortals too: everyday programs from Microsoft, Apple, Adobe, Dreamweaver, Photoshop, you name it. Also an incredibly deep trove of all things Google. You can even brush up on elderly classics like ASCII.
Look in the right-hand column for links to all this and more.
TechPosters says it"s technical posters and cheats for IT guys. But apparently any visitor is automatically one of the guys.
Posted by: Sarah Read more Source
September 23, 2009, 7:17 AM CT
Exposing dangerous invisible pollution
Worried that dust from a nearby construction zone will harm your family's health? A new Tel Aviv University tool could either confirm your suspicions or better yet, set your mind at rest. Prof. Eyal Ben-Dor and his Ph.D. student Dr. Sandra Chudnovsky, of TAU's Department of Geography have developed a sensor called "Dust Alert" - the first of its kind - to help families and authorities monitor the quality of the air they breathe. Like an ozone gas or carbon monoxide meter, it measures the concentration of small particles that may contaminate the air in your home. Scientific studies on "Dust Alert" appeared recently in the journal Science of the Total Environment, Urban Air Pollution: Problems, Control Technologies and Management Practices. "It works just like an ozone meter would," says Prof. Ben-Dor. "You put it in your home or office for three weeks, and it can give you real-time contamination levels in terms of dust, pollen and toxins." Functioning like a tiny chemistry lab, the device can precisely determine the chemical composition of the toxins, so homeowners, office managers and factories can act to improve air quality. Using the measurements, Prof. Ben-Dor can sometimes find a quick remedy for a dusty or pollen-filled home. The solution could be as easy as keeping a window open, he says. "We've found through our ongoing research that some simple actions at home can have a profound effect on the quality of air we breathe".........
Posted by: John Read more Source
Wed, 16 Sep 2009 04:47:46 GMT
Leica M9 Digital Rangefinder Camera Introduced
I recently said that some of the latest P&S digital cameras were mimicking the appearance of rangefinder film cameras of the 1940's-80's.
Well, the king of rangefinder film cameras, Leica, has just introduced their latest gem, the model M9.
Pretty simple name/designation, M9, for a camera boasts an 18mp sensor and a shutter speed range of 1/4000 - 32 seconds.
Oh yeah, it costs about $7,000.00 bucks, and Amazon is taking pre-orders right now.
You owe it to yourself to at least take a look at what that kind of paper will get you. Here's the link to the Leica M9 story.
Take a camera with you whenever possible, and look around, you'll find a picture somewhere.
Photo Source:www.digitalphotographyschool.com
Posted by: Karen Read more Source
September 15, 2009, 7:59 AM CT
Dual simulation improves crash performance
Damage to a component made out of high-strength steel after a crash test. (© Fraunhofer IWM)
Crash tests often produce startling results. A new simulation process which factors in deformation during production as well as preliminary damage can predict the results of a crash test more accurately than ever. There are components that save lives: if a car rolls over during an accident, the 'B-pillar' plays a key role. It forms one of the connections between the floor and roof of the vehicle and is designed to prevent the passenger cell from deforming too much. The materials from which the B-pillar is manufactured therefore need to meet very exacting requirements: to save fuel they need to be ultra-lightweight, yet at the same time need to be tremendously strong and must not break. Yet what does the optimum component actually look like? With the aid of countless experiments, simulations and crash tests, the auto industry has been getting nearer to answering this question. Now Fraunhofer scientists are providing further impetus to development. Engineers will commonly carry out a range of virtual tests. Known materials properties provide the basic knowledge in such a scenario. "We are well aware of the physical and mechanical characteristics of the materials in their original state," says Dr. Dong-Zhi Sun, Group leader at the Fraunhofer Institute for Mechanics of Materials IWM. Yet during the course of the manufacturing process, the components change: with a B-pillar, for instance, the material goes through a complicated manufacturing chain. As it is deformed and stretched, minor damage such as pore formation may occur. "If you're going to fit these kinds of parts into vehicles, you need to take into account their deformation history during manufacture," explains Sun. That's why the scientists have developed a special method: "With our failure model, we can simulate manufacturing processes more effectively," explains Sun. "To ensure we understand the manufacturing processes inside out, we work together closely with automakers and materials producers." Thanks to the simulation, the scientists can precisely model and analyze the deformation of the component during manufacture. So they know to what extent the process affects the properties of the end product, and whether the manufacturing process gives rise to potential preliminary damage such as pore formation and microcracks. The engineers combine the results of the process simulation with a crash simulation, which is conducted using a newly developed material model.........
Posted by: John Read more Source
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