The National Highway Traffic Safety Administration will work with NASA
engineers specializing in electronic systems, electromagnetic
interference and "software integrity," the agency said Tuesday (March
The government will spend about $3 million on the NASA and academy
studies, a pricetag that includes purchasing the alleged runaway
One place government engineers should focus on is firmware in Toyota's
electronic control units. I've been unable to confirm speculaton that
this is a possible source of Toyota's throttle problem.
Please log on to our forum if you've heard anything about troubled
firmware or any other possible causes for faulty Toyota electronic
Key to Claros's device is its ability to perform the test on a small
drop of blood. The surface of the cartridge is covered in narrow
channels, which serve as both storage for the chemicals needed for the
assay and as tiny test tubes in which to carry out the reaction. Each
reagent is lined up sequentially in one long channel and separated by
small air bubbles. Once the cartridge is inserted into the reader, a
vacuum pulls the blood through one channel and delivers the appropriate
sequence of reagents. This approach avoids the pumps used to move
chemicals in other microfluidics chips, enabling a simple and robust
design with no moving parts. The reader itself is simple, using an LED
and photodiode to detect the buildup of silver--the output of the
reaction--on the cartridge. The more silver, the less light passes
through the chip and the higher the PSA level.
If you have an expression of the derivative function df
of f, use the Newton-Raphson method. It's stable and
converges quickly. If you don't have an expression df of
the derivative function of f, the answer is not easy. It
depends, in fact, on what is the most important for you. The Bisection
method will always lead you to a good approximation, but not as quickly
as the others. The three methods False Position, Secant, and Ridder
converge more quickly, but can fail in some cases. The Brent method
seems so to be the most efficient method.
Fast prototyping of the look and feel of an application. Ext
Designer enables developers and designers to assemble robust layouts by
dragging and dropping their components together.
Fine-tuning without hand coding. Easily change the layout of a
specific component, or use the inspector to fine-tune detailed
User client-side data stores. Ext Designer includes several new ways
to incorporate and configure data stores, which can then be bound to
components like DataGrids and Trees. Whether your data is in JSON, XML, a
help you build a data store for it faster than ever.
Compatible with other development tools. Once the application design
is finished, code can be exported on a component-by-component basis, as
The main construction material
used is Polystyrene (or simply Styrene), which is widely available on
most hobby stores. For bulk quantities or for those coming from the
States, you can contact Evergreen Models – they will stock every styrene
sheet / tubing you will ever need.
Styrene is a soft, normally white plastic,
which is very easy to handle and will bond very nicely when glued with
polystyrene glue. I normally design the part I want to make directly
onto the styrene sheet and cut it off using scissors. For internal
cut-outs I use my Dremmel with a 2.5mm diameter Carbide cutter. If I
need my part to be thicker than the sheet’s thickness, I make multiple
identical parts and glue them together. When you make parts like that,
make sure you leave the drilling for the end - this will ensure holes
are aligned across all glued sheets.
Beat box: This implantable medical device bends and twists,
thanks to transistors made of ultrathin ribbons of silicon. The
electrode array shown here has 288 electrodes that can maintain contact
with a heart even as it beats.
recent breakthrough at the BCCN
at the University of Göttingen, Germany has now allowed to achieve
11 basic behavioral patterns (various gaits, orienting, taxis,
self-protection) from a single CPG, closing in on the 10–20 different
basic behavioral patterns found in a typical cockroach. The trick: Work
with a chaotic, rather than a stable periodic CPG regime. For more on
CPGs, listen to the latest episode of the Robots
on Chaos Control, which interviews Poramate
Manoonpong, one of the lead researchers in Göttingen, and Alex Pitti from
the University of Tokyo
who uses chaos
controllers that can synchronize to the dynamics of the body they are
Rad Software Regular Expression Designer is a free download that helps programmers learn, develop and test Regular Expressions. It is an interactive Windows application that is designed to be simple and easy to use. Features
* The Regex match results are listed in a tree with levels for Matches, Groups and Captures. Clicking on a Match, Group or Capture will highlight it in the Input text window * Regex.Replace is supported and the results of the replace are listed in a separate window. * The Language Element window is an embedded reference that gets you up to speed quickly. Click on an item to see a description in the pane below, double-click a language element to add it to your Regex * Find text in any of the text windows with Ctrl+F * Flexible interface with dockable windows
* Now supports very large values for the input text
The contest between HTML 5 and Flash is complicated by the issue of
platform support, or lack of it. For example, Apple has so far shut
Flash out of the iPhone and iPad, and it will take time for even
Flash-friendly devices such as Android phones to reach the market with
full support for Flash Player 10.1. Adobe is working to close this gap
by releasing tools that repackage Flash applications into a format that
can be submitted to Apple's app store.
HTML 5, on the other hand, has seen good support on mobile devices.
Google recently used the iPhone's support for HTML 5 to make its
Google Voice application available through the phone's browser after
Apple rejected the application from its app store.
On the other hand, HTML 5 suffers from a notable lag in adoption--it
doesn't work on Microsoft's Internet Explorer, which is still the most
popular Web browser in the world. Though Microsoft recently announced
that Internet Explorer 9 would support features from HTML 5, it's not
yet clear whether the Canvas element will be included.
An important reason why Salant and Galbraith prefer HTML 5 is because
the technology isn't proprietary. When an application is written using
Canvas, other developers can use the browser's "view source" command to
understand exactly how it works and learn from it, Salant noted.
Galbraith added that developers don't have enough control over what
features a proprietary platform such as Flash supports over time.