289results about How to "Cheap implementation" patented technology

The sensor arrangement, performance-monitored machine system, and method, utilize radiance of exhaust streams to indicate performance deviation, due to combustion instability or machine malfunction, in propulsion gas turbine engines, augmentors used on such engines, stationary power generating gas turbine engines, and other air-breathing combustion-based turbine machines and systems. Sensor operation is based upon high-speed measurements of radiant emission from the hot exhaust stream, taken at a minimum rate of 2000, and preferably at a rate of at least 8000, samples per second. Select infrared wavelengths of light are used to capture temporal variations in the radiance, which are Fourier analyzed to determine the magnitude and frequency of the combustion instability. The apparatus and method enable detection of incipient combustion instability, combustion system health, power loss, stall, surge, and fuel light-off; information and feedback are available for combustion control, to provide an early warning and diagnosis of a physical and/or mechanical malfunction, and to indicate a need for condition-based maintenance.

The present invention provides an alert system for providing protection to the users inside the vehicle from potential intruders and ambushers. The alert system includes a proximity detection unit using microwaves to detect any potential ambusher in the vicinity of the vehicle, an alarm unit raises an alarm to alert the users of the vehicle of the potential ambusher(s), a warning unit to warn the potential ambusher to back away and a remote communication unit to broadcast a signal to a remote location to inform the personnel therein about the potential attack. The alert system also includes means to mitigate false alarms. Further, the alert system is capable to be retro-fitted into existing vehicles.

Apparatus (40) for compressing a transcatheter cardiac stent- valve (10) comprises: a hollow channel (42) having an interior surface (50) shaped for progressively compressing the stent- valve in response to longitudinal advancement of the stent-valve within the channel; a driver (46) threadedly engaged on the exterior of the channel for generating a longitudinal driving force in response to rotation; a mover (44) having limbs (56) that project through slots (58) in the channel wall to transmit the driving force to the stent-valve within the channel; and a channel extension (48) removably attachable at the exit (54) to provide a generally cylindrical containment bore (66).

A stand-alone monitoring device and system are disclosed. The device comprises a mobile communication component operable to communicate over a communications network and a monitoring component, wherein the monitoring component is arranged to cause transmission of a message over said communications network to a predetermined recipient system via said mobile communication component upon detection of a predetermined condition or event.

The invention discloses a selective heap leaching gold extraction process for gold mine containing copper, belonging to the field of hydrometallurgy. The process comprises the steps of: smashing and heaping gold mine containing copper; carrying out alkali treatment on the mine; then adding ammonium salt and sodium cyanide according to a certain proportion to realize the selective leaching of the gold and the restriction to the leaching of the copper; and finally absorbing and extracting the gold from leaching solution by conventional active carbon. The invention has the advantages of simple process method, short procedure, simple equipment, easy implementation, high gold leaching efficiency, low consumption of sodium cyanide, low energy consumption, little investment and low cost, and is the gold extraction method with easy realization of industrialized production and favorable economical benefit.

A method is provided for compressing data from a source stream of data comprising a string of values using one or more distinct computer memory addresses as workspace, each computer memory address having one or more locations to hold one or more distinct values, respectively. The method works by reading two contiguous data values, of length K and N bits respectively, from a source data stream, as a memory address reference, and a current symbol value, respectively. The current symbol value is written to replace one of the values at the memory address reference if the current symbol value does not match any of the values at the memory address reference, and a MISS code, followed by the current symbol value, are appended to the compressed data stream. Alternatively, if the current symbol value matches any of the values at the memory address reference, then a hit code is added to the compressed data stream, said hit code representing the location, or an attribute associated with the location, where the value was found in the memory address reference. The method is repeated for all symbols read from the source stream. An equivalent, symmetric and reversible decompression or reconstruction method creates an uncompressed data stream equivalent to the original source stream. Advantageously, the workspace employed by the compression method has similar behavior to that of a cache memory used in computer architecture, allowing the compression method to be implemented using content addressable memory, that is associative or intelligent memory for hardware designs or associative arrays for software implementation.

A pneumatic launcher has a plenum chamber section, an intermediate chamber section and a launch tube section connected together in a generally linear arrangement. The plenum chamber section defines a plenum chamber that has a closed end and an open end. The intermediate chamber section has aft and forward rupture disks consecutively arranged to define an intermediate chamber. The plenum chamber is pressurized with a pressurized gas to a design plenum pressure and the intermediate chamber is pressurized with a pressurized gas to pressure that is about one-half the design plenum pressure. The intermediate chamber is then depressurizing to produce a pressure imbalance between the plenum and intermediate chambers that causes said aft and forward rupture disks to rupture. As a result, pressure equilibrium occurs between the plenum chamber and launch tube thereby discharging the fluid and projectile from the interior of the launch tube.

The invention discloses a distributed type gradient algorithm based microgrid energy storage unit optimization control method. The microgrid energy storage unit optimization control method comprises the steps of establishing a power grid power balance model for the microgrid; determining the relations between the charging-discharging efficiency of the energy storage unit and the charging-discharging power, and between the charging-discharging efficiency of the energy storage unit and the state of charge separately according to the electric energy loss in the charging-discharging process of the energy storage unit in the microgrid; carrying out modeling and analyzing on the charging-discharging process of the energy storage unit by taking the minimized electric energy loss in the charging-discharging process of the energy storage unit as the target function; optimizing and solving the established charging model for the energy storage unit based on a multi-agent system by fully utilizing the distributed type gradient algorithm to obtain a model optimal solution; and obtaining a charging-discharging strategy of the energy storage unit according to the model optimal solution, and controlling the implementation of the charging strategy. According to the optimization control method, the energy storage unit in the microgrid is optimized and dispatched, so that an optimization result equivalent to that obtained in a centralized method can be obtained; and in addition, the optimization control method is low in implementation cost, flexible and extensible, and capable of effectively solving the problem existing in the access of the large-scale battery energy storage system.

The present invention provides a vending machine monitoring system that includes a first mobile phone housed inside the vending machine. The system also includes an adapter device which is configured to be installed or retro-fitted in a vending machine. The adapter device is communicably coupled with a controller of the vending machine to monitor and control the various operations of the vending machine. In particular, the adapter device acts a bridge between the various cables, which carries signals related to the operations of the vending machine, and the controller. Further, the first mobile device is installed in the vending machine which is in wireless or wired communication with the adapter device, and allows the vending machine to accept contactless payments and record the inventory levels and payment information. The adapter device, along with the computing device, provides additional functionality of remotely monitoring and controlling the vending machine.

The invention relates to a method for reinforcing soft broken coal rock by directional grouting, comprising the following steps of: respectively dividing an upper-layer fixed section, an intermediate-layer fixed section and a lower-layer fixed section at the upper part of a mining surface from top to bottom; respectively upwards drilling on each layer of fixed sections along the direction inclined to a horizontal plane; and respectively inserting constant pressure grouting pipes with a plurality of holes into each drill hole and injecting reinforcing slurry into each constant pressure grouting pipe, wherein the cost performance of reinforcing slurry A of the upper-layer reinforcing section and the lower-layer reinforcing section is lower than that of reinforcing slurry B on the intermediate-layer fixed section. According to the method disclosed by the invention, a pre-mined coal layer is divided into layers and sections; the phenomenon of no top bursting in the mining process is ensured and the consumption of expensive reinforcing slurry B is saved as much as possible, thereby the mining cost is saved. The invention has the advantages of reasonable design, economy and remarkable effect for saving cost and is easy to implement through practical application.

The invention relates to a system comprising a first substrate (100) with at least one bonding area (110a, 110b), liable to be assembled with a second substrate (200), the bonding area (110a, 110b) comprising an area made of a material (104) that can be wetted with a meltable material. According to the invention, the bonding area (110a, 110b) comprises at least one cavity (120) to receive meltable material.

A heated shaving brush having a housing with an interior space that houses a shaft that acts as a tube to allow shaving cream or similar lubricating agent to pass through to a bristle assembly that a user applies to their body. The shaft is adjacent to a heating element that is powered by alternating or direct current, thereby heating the shaving cream as it passes through the hollowed shaft. A graduated knob can modulate the speed at which the shaving cream passes through the shaft, thereby increasing or decreasing the temperature of the shaving cream before it is applied to a user's face.

A method for recognising the fuel type in a diesel engine; the method envisages determining a stoichiometric air/fuel ratio of the last type of fuel used; determining a quantity of fresh air fed to a number of cylinders of the engine; determining a quantity of fuel injected in the cylinders; determining a theoretical air/fuel ratio of combustion according to the quantity of fresh air fed to cylinders, according to the quantity of fuel injected into cylinders, and according to the stoichiometric air/fuel ratio of the last type of fuel used; determining an actual air/fuel ratio of combustion; comparing the theoretical air/fuel ratio with the actual air/fuel ratio; and recognising the fuel type actually used according to the comparison between the theoretical air/fuel ratio and the actual air/fuel ratio.

A base assembly is provided that includes a base and a coupler. The coupler includes a sleeve for receiving an umbrella pole, a lower portion comprising a side surface, and a locking member coupled with the side surface. The locking member is configured to move toward or away from a longitudinal axis of the sleeve such that the locking member engages the base to prevent rotation of the coupler relative to the base.

An air purification system including a vent cover assembly and an air filter assembly is disclosed. The vent cover assembly includes a vent cover with a slot that permits access to an interior of the vent cover. The vent cover is retrofitted to existing air vents to allow filtering of air in a desired room. The air filter assembly includes a filter holder having an air filter removably attached thereto. The air filter is used to remove dust and other particle from the air flowing out of the air vents. The filter holder is removably mounted within vent cover, through the slot, with the air filter attached. The air flow out from the air vents, through the air filter and out of the vent cover into the desired room. The air in particular rooms is filtered with the air filter to help improve the health of the users.

A modular unit has at least one filter (10), pump (12) and cooling unit (14) fluidically connected to each other by a connection module (16) and connected to a tank unit (18). The connection module (16) opens out inside (22) the tank unit with a suction opening (20), together with the cooling unit (14) when the tank unit is connected (18). The filter unit (10) and pump unit (12) are arranged outside the tank unit (18). The modular unit can then be placed on and connected to a tank unit. The cooling unit protrudes inside the tank unit.

The invention discloses a geomagnetic sensor and Wifi-based parking space detection apparatus and method, and belongs to the technical field of parking space detection and wireless communication. The parking space detection apparatus comprises a power supply module for providing working voltage to a main controller, a geomagnetic parking space detection module and a wifi wireless communication module, the main controller used for controlling the working states of the geomagnetic parking space detection module and the wifi wireless communication module, the geomagnetic parking space detection module used for acquiring earth magnetic field signals, and the wifi wireless communication module used for sending parking space information. The parking space detection method comprises the steps of the geomagnetic parking space detection module acquiring the earth magnetic field signals of a parking space and sending the signals to the main controller, forming parking space occupation information after the main controller processing the acquired earth magnetic field signals, and the wifi wireless communication module controlled by the main controller sending parking space information based on the principles of sending information when change occurs. The parking space detection apparatus and method have the advantages of wifi wireless transmission, reliable communication, simple networking, high capacity expanding capability, and low execution and use cost.