JXTA™ is a set of open, generalized peer-to-peer (P2P) protocols that allow any networked device — sensors, cell phones, PDAs, laptops, workstations, servers and supercomputers — to communicate and collaborate mutually as peers
JXTA™ is a set of open, generalized peer-to-peer (P2P) protocols that allow any networked device — sensors, cell phones, PDAs, laptops, workstations, servers and supercomputers — to communicate and collaborate mutually as peers
This application report discusses the design of non-invasive optical plethysmography
also called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). The
pulsoximeter consists of a peripheral probe combined with the MCU displaying the
oxygen saturation and pulse rate on a LCD glass. The same sensor is used for both
heart-rate detection and pulsoximetering in this application. The probe is placed on a
peripheral point of the body such as a finger tip, ear lobe or the nose. The probe
includes two light emitting diodes (LEDs), one in the visible red spectrum (660nm) and
the other in the infrared spectrum (940nm). The percentage of oxygen in the body is
worked by measuring the intensity from each frequency of light after it transmits
through the body and then calculating the ratio between these two intensities.
The JavaServer Pages (JSP) Expression Language (EL) is a
simple non-procedural scripting language that can be used
to evaluate dynamic expressions within a JSP page. Each EL
expression evaluates to a single value that is then expressed as
text in the output of the JSP (when used in template text), or
passed as a value to a JSP action.
As such, it is ideal for adding dynamic elements to the HTML
page (or other text output) generated by the execution of a JSP.
