A mass airflow sensor is used to determine the mass of air entering the engine. The air mass information is necessary to calculate and deliver the correct fuel mass to the engine. Air is a gas, and its density changes as it expands and contracts with temperature and pressure. In automotive applications, air density varies with the vehicle's operating environment, and is an ideal application for a mass sensor. (See stoichiometric, ideal gas law, and density.)

There are two common types of mass airflow sensors in usage on gasoline engines. The ....etc

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plz get me a ppt of the accident prevention eye blink sensor ....etc

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TECHNICAL ASPECTS OF IMAGE-GUIDED RESPIRATION-GATED
RADIATION THERAPY


STEVE B. JIANG, PH.D.
Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
( Accepted 21 December 2005)


Abstract—In this review article, we discuss various technical aspects of image-guided respiration-gated radiation
therapy. We first review some basic concepts related to respiratory gating, including gating window, duty cycle,
residual motion, internal/external gating, amplitud ....etc

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Definition
The communications capability of devices and continuous transparent information routes are indispensable components of future oriented automation concepts. Communication is increasing rapidly in industrial environment even at field level.In any industry the process can be realized through sensors and can be controlled through actuators. The process is monitored on the central control room by getting signals through a pair of wires from each field device in Distributed Control Systems (DCS). With advent in networking concept, the cos ....etc

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A MAP sensor (manifold absolute pressure) is one of the sensors used in an internal combustion engine's electronic control system. Engines that use a MAP sensor are typically fuel injected. The manifold absolute pressure sensor provides instantaneous pressure information to the engine's electronic control unit (ECU). This is necessary to calculate air density and determine the engine's air mass flow rate, which in turn is used to calculate the appropriate fuel flow. (See stoichiometry.)

An engine control system that uses manifold absolute p ....etc

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Tool wear has long been identified as the most undesirable characteristic of the machining operations. Flank wear, is particular directly affects the work piece dimensions and the surface quality. A reliable and sensitive technique for monitoring the tool wears with out interrupting the process, is curtail in realization of the modern manufacturing concepts like unmanned machining centers, adaptive control optimization, etc. in this work an opto-electronic sensor is used in conjunction with a multilayered neural network for predicting the flan ....etc

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Abstract”
In this letter, we analyze a class of Opportunistic Power Allocation (OPA) and sensor selection schemes for parameter estimation in wireless sensor networks. In all cases, only sensors experiencing favorable conditions participate in the estimation process by adjusting their transmit power on the basis of local Channel State Information (CSI) and Residual Energy Information. We address a number of classical problems: the minimization of distortion and transmit power, or the enhancement of network lifetime. Furthermore, we deri ....etc

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report of the remote compact sensor for the real time monitoring of human heartbeat and respiration rate ....etc

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Connected Sensor Cover: Self-Organization of Sensor Networks for Efficient Query Execution (Java)
IEEE/ACM Transactions on Networking, Vol. 14, No. 1

Abstract:
Spatial query execution is an essential functionality of a sensor network, where a query gathers sensor data within a specific geographic region. Redundancy within a sensor network can be exploited to reduce the communication cost incurred in execution of such queries. Any reduction in communication cost would result in an efficient use of the battery energy, which is ....etc

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1. what are the advantages of respiratory rate meter
2. detail description of respiratory rate meter
3. uses of each components used to construct respiratory rate meter ....etc

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