Wednesday, September 22, 2010
Android
Wednesday, August 26, 2009
Blackberry Curve
The Curve 8310 also delivers an exceptional interface which makes this an impressive device for the road warrior, those who use the underground / subway, or frequently visit back waters. Menu navigation is slick, the full QWERTY keyboard is easy to operate, and applications launch with neat precision. The Blackberry Curve also looks and feels the part, housing an impressive screen that projects brilliant imagery both inside and outdoors.
Saturday, July 11, 2009
High-Fibre Banana Powder.
The researchers applied starch liquefaction to eliminate the high starch content present in the fruit and thereby produce a fibre-rich powder capable of being formulated in a variety of diverse functional foods.
Using commercial unripe (hard green) bananas, the liquefied slurry was then mixed with an alpha-amylase enzyme for three hours. After this time, the enzyme was inactivated, and the material centrifuged and dried to obtain the fibre-rich powder.
Compared to normal banana flour, the researchers report that the fibre-rich powder of banana flour contained 200 per cent more total dietary fibre, 32 per cent less starch, 88 per cent less resistant starch, and 32 per cent less available starch.
Moreover, the insoluble indigestible fraction was higher in the fibre-rich powder, compared to the plain banana flour (61 versus 44 grams, respectively).
The researchers also report that the powder contained high levels of extractable polyphenols that exhibited antioxidant activity similar to that of apple fibre
"A very fast reduction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical was observed in the presence of fibre-rich powder (FRP), indicating that polyphenols in this preparation efficiently quench free radicals," they wrote.
"FRP might be a potential ingredient for development of products with high total dietary fibre and indigestible fraction contents, as well as important antioxidant capacity," they concluded.
Only recently, researchers from Nova Scotia Agricultural College in Canada reported that apple skin, an under-utilised food-processing by-product, could offer the food industry a novel and healthy-boosting source of fibre for bakery.
Incorporation of apple skin powder into muffins were found to be higher in fibre and have a higher antioxidant content than standard muffins, they reported in Food Chemistry.
Insoluble fibre contains cellulose, hemicellulose and lignin and cannot be dissolved in water, unlike soluble fibre. It is found in wheat or cereal bran and in most vegetables and fruits.
Consumption of insoluble fibre has previously been associated with a reduced risk of obesity and diabetes.
Product Description
Banana powder processing line, the craft procedure:
1. Raw material chosen
2. Color protection
3. Pulping
4. Homogenizer
5. Heating
6. Spray and drying
7. Packaging
8. Finished products
Monday, July 6, 2009
Banana Paper
Wednesday, April 22, 2009
Firetube Boiler Technology
Introduction
Description of the firetube boiler technology
1.The Furnace
2. The Tube Passes
3. Combustion Gas Circulation
4. The Water Tank
Typical firetube boiler
1. Furnace
2. Reversal chamber
3. Second tube pass
4. Front smoke box
5. Third tube pass
6. Gas outlet
Thursday, February 26, 2009
Nanotechnology
Nanotechnology, which is sometimes shortened to "Nanotech", refers to a field whose theme is the control of matter on anatomic and molecular scale. Generally nanotechnology deals with structures of the size 100 nanometers or smaller, and involves developing materials or devices within that size.
Nanotechnology is extremely diverse, ranging from novel extensions of conventional device physics, to completely new approaches based upon molecular self-assembly, to developing new materials with dimensions on the nanoscale, even to speculation on whether we can directly control matter on the atomic scale.
There has been much debate on the future of implications of nanotechnology. Nanotechnology has the potential to create many new materials and devices with wide-ranging applications, such as in medicine, electronics, and energy production. On the other hand, nanotechnology raises many of the same issues as with any introduction of new technology, including concerns about the toxicity and environmental impact of nanomaterials, and their potential effects on global economics, as well as speculation about various doomsday scenarios. These concerns have led to a debate among advocacy groups and governments on whether special regulation of nanotechnology is warranted.
One nanometer (nm) is one billionth, or 10-9, of a meter. By comparison, typical carbon-carbon bond lengths, or the spacing between these atoms in a molecule, are in the range 0.12-0.15 nm, and a DNA double-helix has a diameter around 2 nm. On the other hand, the smallest cellular lifeforms, the bacteria of the genus Mycoplasma, are around 200 nm in length.
To put that scale in another context, the comparative size of a nanometer to a meter is the same as that of a marble to the size of the earth. Or another way of putting it: a nanometer is the amount a man's beard grows in the time it takes him to raise the razor to his face.
Two main approaches are used in nanotechnology. In the "bottom-up" approach, materials and devices are built from molecular components which assemble themselves chemically by principles of molecular recognition. In the "top-down" approach, nano-objects are constructed from larger entities without atomic-level control.
Tuesday, February 3, 2009
History of Java
James Gosling initiated the Java language project in June 1991 for use in one of his many set-top box projects. The language, initially called Oak after an oak tree that stood outside Gosling's office, also went by the name Green and ended up later renamed as Java, from a list of random words. Gosling aimed to implement a virtual machine and a language that had a familiar C/C++ style of notation.
Sun released the first public implementation as Java 1.0 in 1995. It promised "Write Once, Run Anywhere" (WORA), providing no-cost run-times on popular platforms. Fairly secure and featuring configurable security, it allowed network- and file-access restrictions. Major web browsers soon incorporated the ability to run secure Java applets within web pages, and Java quickly became popular. With the advent of Java 2 (released initially as J2SE 1.2 in December 1998), new versions had multiple configurations built for different types of platforms. For example, J2EEtargeted enterprise applications and the greatly stripped-down version J2ME for mobile applications. J2SE designated the Standard Edition. In 2006, for marketing purposes, Sun renamed new J2 versions as Java EE, Java ME, and Java SE, respectively.
In 1997, Sun Microsystems approached the ISO/IEC JTC1 standards body and later the Ecma International to formalize Java, but it soon withdrew from the process. Java remains a de facto standard, controlled through the Java Community Process. At one time, Sun made most of its Java implementations available without charge, despite their proprietary software status. Sun generated revenue from Java through the selling of licenses for specialized products such as the Java Enterprise System. Sun distinguishes between its Software Development Kit (SDK) and Runtime Environment (JRE) (a subset of the SDK); the primary distinction involves the JRE's lack of the compiler, utility programs, and header files.
On 13 November 2006, Sun released much of Java as free and open source software under the terms of the GNU General Public License (GPL). On 8 May 2007 Sun finished the process, making all of Java's core code free and open-source, aside from a small portion of code to which Sun did not hold the copyright.