169results about How to "Lower energy level" patented technology

A urinary catheter clip-on device applies surface acoustic waves of Rayleigh-Lamb and/or Love type to a urinary catheter for preventing biofilms on the catheter surfaces. The bacteria is forced to move relative to the vibrating catheter surface. The amplitudes of bacteria vibrations are in nanometer range. The relative motion of bacteria results in bacteria quorum sensing, and disrupts the bacteria attachment process. The method is preventive as surface acoustic waves create low acoustic energy and bacteria is not killed.

An apparatus for the detection of extravasation in an imaging procedure includes at least a first source of energy to supply imaging energy to tissue in the vicinity of a site and at least a first sensor to measure a signal resulting from the energy supplied to the tissue by the first imaging energy source. In preferred embodiment, the energy may be one of X-ray, gamma ray or ultrasound energy.

A magnetic head includes a pair of ferromagnetic electrodes, namely, a first ferromagnetic electrode layer which is in contact with a portion of a first electrode layer with a first insulating barrier layer interposed in between; and a second ferromagnetic electrode layer which is in contact with another portion of the first electrode layer with a second insulating barrier layer interposed in between. The first electrode layer and the first ferromagnetic layer collectively constitute part of a current-supplying circuit. Moreover, the first electrode layer and the second ferromagnetic layer which are in contact with the first electrode layer with the second insulating barrier layer interposed in between in a region where the two layers are not in contact with the first insulating barrier layer, collectively constitute part of a voltage-measurement circuit. Spin-polarization at the interface in an intersecting region of the second ferromagnetic layer and the second insulating barrier layer, is greater than spin-polarization at the interface in an intersecting region of the first ferromagnetic layer and the first insulating barrier layer.

The invention is directed to an implanted microphone having reduced sensitivity to vibration. In this regard, the microphone differentiates between the desirable and undesirable vibration by utilizing at least one motion sensor to produce a motion signal when an implanted microphone is in motion. This motion signal is used to yield a microphone output signal that is less vibration sensitive. In a first arrangement, the motion signal may be processed with an output of the implantable microphone transducer to provide an audio signal that is less vibration-sensitive than the microphone output alone. Specifically, the motion signal may be scaled to match the motion component of the microphone output such that upon removal of the motion signal from the microphone output, the remaining signal is an acoustic signal.

An optical circuit can include a bidirectional amplifier connected so as to amplify source light prior to emission through an output device such as a telescope as well as amplification of reflected light received by the telescope. Such an optical circuit can be used in laser doppler velocimeter applications as well as other applications. The optical circuit can also include passive splitters or active switches to provide for advantageous multiplexing.

The object of the present invention is to provide a frictional resistance reducing vessel and method of reducing the frictional resistance of a hull that are able to effectively conserve energy consumed during operation by reducing frictional resistance at a low level of energy consumption. In the present invention, a negative pressure region (51), which is at low pressure relative to a gaseous space, is formed in the water accompanying operation of a hull (30), and together with bubbles being guided to this negative pressure region (51) in the water from the gaseous space, the state of this negative pressure region (51) is changed based on changes in vessel velocity.

The present invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. The variable optic insert may have surfaces within that have differing radii of curvature. A liquid crystal layer may be used to provide a variable optic function and in some embodiments, an alignment layer for the liquid crystal layer may be patterned in a hybrid manner. The patterning may allow for the lowering of the minimum electrical potential required to cause a shift in orientation of liquid crystal molecules within the ophthalmic device. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control optical characteristics.

A semiconductor device has an insulated gate transistor provided with a semiconductor substrate and a gate electrode arranged on the semiconductor substrate via a gate insulating film. The gate electrode includes an electrically-conductive buffer film for preventing any damage, which would occur if a main gate electrode portion were formed directly over the gate insulating film, and the main gate electrode portion formed over the buffer film. A fabrication process for the semiconductor device is also disclosed.

A method is provided for controlling a power network that includes a plurality of power generation facilities connected to an electricity grid and a plurality of power storage facilities connected to the power generation facilities. The method includes monitoring a production capacity of the power generation facilities, monitoring a storage capacity of the power storage facilities and determining an optimal facility control plan on the basis of the storage capacity and the production capacity. The method further includes operating the power network, according to the facility control plan, to feed power from the power generation facilities into the electricity grid and/or to transfer power from the power generation facilities to the power storage facilities and/or to consume power from the power storage facilities.

A shaker movement permits an arbitrary path of motion in a shaker's shaking action. The shaker movement comprises independent control over the "X" and "Y" directions of the shaking actions by a pair of track assemblies, each track assembly comprising a pair of fixed rods and a pair of sliding rods that are interconnected with each other in a rectangular, grid-like pattern. Motion in both directions can be driven by a single motor utilizing independent pulley-and-belt systems or by two synchronized motors which are connected to a sliding rod of each track assembly. By altering the relative amplitude, phase angle, and frequency between the "X" and "Y" directions, the shaking action can follow a desired path. The shaker path can be varied from the traditional circular orbital motion or linear motion, to a new group of shaking patterns in which the direction of the shaking movement can reverse. The new patterns of shaker movement cause the liquid being shaken to be more thoroughly mixed, with less power input, and at a lower angular frequency than is practical with traditional paths of motion. This results in higher rates of gas transfer to and from the liquid, resulting in greater growth of a bacterial culture, and for higher rates of mass transfer at equivalent levels of energy input.

A strained semiconductor heterostructure (10) comprises an injection region comprising a first emitter layer (11) having p-type conductivity and a second emitter layer (12) having n-type conductivity, and a light generation layer (13) positioned between the first emitter layer (11) and the second emitter layer (12). An electron capture region (14) is positioned between the light generation layer (13) and the second emitter layer (12), said electron capture region comprising a capture layer (16) adjacent to the second emitter layer, and a confining layer (15) adjacent to said electron capture layer. According to the present invention, the widths and materials of the confining and capture layers (15, 16) are selected to provide energy difference between one of localized energy levels for electrons in the capture layer (16) and the conduction band bottom of the second emitter layer (12) equal to the energy of the optical phonon.

A 2T cell NOR architecture based on the use of BE-SONOS for embedded memory includes memory cells having respective access transistors having access gates and memory transistors having memory gates arranged in series between the corresponding bit lines and one of the plural reference lines. A memory transistor in a memory cell comprises a semiconductor body including a channel having a channel surface and a charge storing dielectric stack between the memory gate and the channel surface. The dielectric stack comprises a bandgap engineered, tunneling dielectric layer contacting one of the gate (for gate injection tunneling) and the channel surface (for channel injection tunneling). The dielectric stack of the memory cell also includes a charge trapping dielectric layer on the tunneling dielectric layer and a blocking dielectric layer.

An automatic moving device and a control method therefor. The automatic moving device comprises a battery pack providing power. The automatic moving device can work within a working area and automatically return to a charging station for charging. The control method comprises the following steps: monitoring the power level of the battery pack; if the power level of the battery pack is less than or equal to a preset power level, initiating an action of returning the automatic moving device to the charging station; and after a preset time period, stopping the travel. By setting a preset time period simultaneously with initiating a return action, and executing a return action within the preset time period, the control method prevents damage to the battery pack from over-discharging caused by the automatic moving device continually returning, thus achieving the effects of protecting the battery pack and extending the life thereof.

A method (500) for reserving energy resources on a communication device (115, 120, 300). The method can include receiving an emergency indicator (135) associated with an emergency plan. Based on the emergency indicator, an amount of energy to reserve on a communication device can be selected. The selected amount of energy then can be reserved on the communication device. Receiving the emergency indicator can include receiving an indicator (140, 145) of an assigned role or task. Receiving the emergency indicator also can include receiving an indictor of the energy to be reserved. Selecting the amount of energy to reserve can include selecting an amount of energy associated with the role or task. In response to receiving the emergency indicator, an acknowledgement (150, 155) of whether an assignment of the role or task is accepted can be communicated.

The invention relates to an ultra-cool molecule preparation and measurement technique, and particularly relates to a method and a device for directly producing and measuring an ultra-cool ground state double-atom cesium molecule, solving the problems that the existing ultra-cool ground state double-atom cesium molecule preparation and measurement technique is high in the temperature requirement of the ultra-cool cesium molecule, the formed ultra-cool ground state double-atom cesium molecule is easily decomposed to two atoms, the yield of the ultra-cool ground state double-atom cesium molecule is low, the formed ultra-cool ground state double-atom cesium molecule is damaged during the measurement and the technological difficulty is large. The method for directly producing and measuring the ultra-cool ground state double-atom cesium molecule comprises the following steps: a. cooling cesium atoms to form ultra-cool cesium atoms; b. forming a long-range excited state double-atom cesium molecule from the ultra-cool cesium atoms under the action of photo-association lasers; c. tunneling the long-range excited state double-atom cesium molecule to form a short-range excited state double-atom cesium molecule; and d. collecting fluorescence with a lens. The method and the device provided by the invention are used for preparing and measuring the ultra-cool ground state molecules.

A large enhancement of neutron flux is realized when a primary target of D₂O and H₂O is contained in a vessel, is irradiated by an electron beam incident on a gamma converter and where the vessel is enclosed within a neutron reflector material including Nickel and Polyethylene. A very large enhancement of neutron flux is realized when a secondary target of LEU is mixed with the primary target resulting in a very large enhanced production of Molybdenum-99.