Tkool Electronics

Despite the looming deadlines, many in the industry remain confused about their obligations under the waste directive. Last month, the Department of Trade and Industry published its long awaited, 80-page WEEE Guidance Notes which tells all involved how they need to manage electrical waste and recycle products.

842-106-544-212_Datasheet PDF

Despite the looming deadlines, many in the industry remain confused about their obligations under the waste directive. Last month, the Department of Trade and Industry published its long awaited, 80-page WEEE Guidance Notes which tells all involved how they need to manage electrical waste and recycle products.

Availability: Die product samples, SMT packaged samples, and evaluation PC boards for all SMT packaged products are available from stock and can be ordered via the company's e-commerce site or via direct purchase order.Datasheets: power amplifier datasheets

Hittite , 1-978-250-3343, www.hittite.com

842-106-544-212_Datasheet PDF

NETANYA, Israel — A team of scientists at the Weizmann Institute of Science (Rehovot, Israel) has created a molecule that can function as a tiny version of a keypad locking mechanism.

Although the minuscule keypads are not likely to become a practical alternative to today's anti-theft devices, the team says the molecular keypad lock — said to be the first of its kind — will lead to new ideas and inventions in other areas such as information security and medicine.

According to the researchers, faster and more powerful molecular locks could serve as the smallest ID tags, providing the ultimate defence against forgery. In the future, molecular keypads might also prove valuable in designing smart” diagnostic equipment to detect the release of biological molecules or changes in conditions that indicate disease.

842-106-544-212_Datasheet PDF

The scientists' work appears in the latest edition of the Journal of the American Chemical Society .

The new molecule — synthesized in the laboratory of Professor Abraham Shanzer of the Organic Chemistry Department — is composed of two smaller linked units – fluorescent probes – separated by a molecular chain to which iron can bind. One of these probes can shine bright fluorescent blue and the other fluorescent green, but only if the surrounding conditions are right. These conditions are the keypad inputs: rather than the electric pulses of an electronic keypad, they consist of iron ions, acids, bases, and ultraviolet light.

842-106-544-212_Datasheet PDF

Shanzer and his group have previously demonstrated that such molecules can be used as logic gates. Unlike electronic logic gates, in which electrical switches flip ON and OFF, the team's molecules, with various combinations of chemical and light inputs, can switch between colors and light intensities to perform arithmetic calculations.

The challenge in creating a keypad lock was generating sequences that can be distinguished from one another. The scientists found that by controlling the opening rate of the logic gate within the reaction time frame, they were able to produce different, distinguishable, outputs, depending on the order of inputting them.

The table below presents iSuppli's worldwide revenue forecast for pay television services for satellite, cable and IPTV.

Figure: Worldwide Subscription Revenues for Pay Television Services—Satellite, Cable and IPTV (Revenue in Millions of U.S. Dollars)

Source: iSuppli Corp., February 2007

Several major trends in the pay-television market will have ramifications throughout the entire technology value chain. These trends include the rising use of non-linear video, i.e. services like Video-on-Demand and Digital Video Recording, which allow viewers to watch the programming of their choice whenever they want. Other trends include the push for interactivity, the looming analog television broadcasting cut-offs and the increasing impact of Web 2.0.

访客,请您发表评论:

Powered By Tkool Electronics

Copyright Your WebSite.sitemap