231results about How to "Increase energy level" patented technology

A patient-worn energy delivery apparatus for imparting electrical therapy to the body of a patient responsive to an occurrence of a treatable condition includes a voltage converter for converting electrical energy from an initial voltage to a final voltage, and a defibrillator electrically coupled between the converter and the patient and having an energy reservoir for receiving the electrical energy. The defibrillator produces preshaped electrical pulses such as defibrillation pulses and cardioversion pulses. The apparatus additionally includes an energy delivery controller electrically coupled to the patient and the converter and the defibrillator. The controller causes the converter to provide the electrical energy to the defibrillator at a specific charging rate in response to an energy level in the reservoir. The apparatus may include a plurality of electrodes interposed between the defibrillator and the patient and each electrode preferably has an impedance reducing means contained therein. One embodiment of the apparatus may include a H-bridge to produce a positive-going pulse segment and the negative-going pulse segment within the biphasic exponential signals. The apparatus periodically measures the energy as it is being delivered to the patient and can pre-emptively stop or truncate the pulse in the event an error condition is detected, such as an overvoltage condition or if the energy level approaches a predetermined level. The electrical components which store and release the energy minimize the size and expense of the apparatus, while isolating the microcomputer from the high energy levels as the therapeutic pulse is delivered.

A process is disclosed for sterilising ambient air conducted in an air duct (401), as well as a use of a device for breaking down gaseous hydrocarbon emissions in order to sterilise ambient air conducted in an air duct (104), and a device for sterilising ambient air conducted in an air duct (401). Ambient air is supplied to the air duct (401) of an UV unit (403) for irradiation with UV radiation, and the thus pre-purified ambient air is supplied to a downstream ionization unit (407) arranged in the air duct and in which the ambient air is ionised.

A method and apparatus for applying tape tabs to a traveling web of material, for example, placement of tape tabs on a running web of disposable undergarments. A pair of wheels each has a protuberance come in contact with the running web of material, which comes in contact with an infeeding tape web. The invention allows placement of tape tabs at asymmetrical spacings, where placement of the tape from contact of the first wheel and protuberance may not be equally or centrally spaced from placement of the tape by the second wheel and protuberance.

The invention discloses a polycyclic benzothiadiazole non-fullerene acceptor material, a preparation method thereof and an application of the material. The polycyclic benzothiadiazole non-fullerene acceptor material comprises a polycyclic benzothiadiazole center core and electrophilic end groups, the polycyclic benzothiadiazole center core is of a nitrogen bridge trapezoidal polycyclic structure,the electrophilic end groups are connected to two ends of the center core, 4, 7-dibromo-5, 6-binitro benzothiadiazole serves as a raw material in the preparation process, Stille coupling and Vilsmeier-Haack reaction are sequentially performed to obtain the polycyclic benzothiadiazole center core, and end-group structures are introduced by Knoevenagel reaction to obtain the polycyclic benzothiadiazole non-fullerene acceptor material. The acceptor material is good in solubility and easily processed into a film, has a good photoelectric conversion function and is used for preparing an organic solar battery device, and photoelectric conversion efficiency reaches nearly 16% of single battery conversion efficiency.

A method to optimize the energy consumption of a station (STA)—as for example a laptop, palmtop or a mobile phone—in a network, preferably a WLAN according to the IEEE 802.11 standard where a station (STA) sending Power Save (PS) polls to an Access Point (AP) is characterized—regarding an efficient energy management of the station with a possibly low energy consumption—in that the Access Point (AP) confirms the receipt of a Power Save (PS) poll by sending an acknowledgement frame including information which indicates to the station (STA) whether a frame is stored for it at the Access Point (AP).

Determining the presence and type of a probe associated with an active implantatable medical device, in particular a cardiac pacemaker and devices having similar pacemaker functionality. This device includes circuits for producing monopolar or bipolar stimulation pulses, selectively with or without disconnection of a connection (S1, S2) to a reference potential, and a circuit for sensing a pulse signal produced by the variation of potential induced on one and/or the other of terminals (RING, TIP) and/or on the metallic case (CASE) in response to an application of stimulation pulses. The device operates to analyze a characteristic of the shape (28), in particular the pulse width, and to deliver an indicator representative of the presence or the absence of a probe. The device also can selectively modify at least one operating parameter of the device according to the delivered indicator.

Aspects of the present disclosure are presented for a single surgical instrument configured to grasp, seal, and/or cut tissue through application of therapeutic energy, and also detect nerves through application of non-therapeutic electrical energy. A medical device may include two jaws at an end effector, used to apply therapeutic energy and to perform surgical procedures. The therapeutic energy may be in the form of ultrasonic vibrations or higher voltage electrosurgical energy. One of the jaws may be configured to cut tissue through application of the blade. In addition, one or both of the two jaws may be configured to apply nontherapeutic energy for nerve stimulation probing. The application of therapeutic energy may be disabled while the nontherapeutic nerve stimulation energy is applied, and vice versa. The nontherapeutic nerve stimulation energy may be applied to the use of one or more probes positioned near one or both of the jaws.

A power converting apparatus is provided with an inverter circuit, an output short-circuiting circuit, and a control circuit. The inverter circuit comprises a first inverter switch and a second inverter switch. The output short-circuiting circuit comprises a first short-circuiting switch configured so as to short-circuit a power supply line that outputs a first polarity voltage, out of a pair of power supply lines, and a second short-circuiting switch configured so as to short-circuit a power supply line that outputs a second polarity voltage, out of the pair of power supply lines. Upon switching the polarity from the first polarity to the second polarity, the control circuit turns off the first short-circuiting switch before the timing whereby the second inverter switch is turned on.

A safer flash-bang grenade that yields the state of the art sound intensity, plus a brighter, more intense flash of the order of 13.5 million candela—which effect is due to a combination of a particularly efficacious pyrotechnic formulation and a particular reaction chamber design that momentarily retains or holds-back the reaction escape until the desired intensity is reached. The particular pyrotechnic formulation is based upon a strontium nitrate oxidizer in conjunction with an aluminum powder metallic fuel and a sulfur non-metallic fuel. The particular reaction chamber design includes a relatively rigid, non-fragmenting charge holder, with a slip-fit thin aluminum sleeve internal thereof and a shrink fit or other sealed sleeve external thereof.

The invention discloses a heptatomic condensed ring benzotriazole receptor micromolecule and a preparation method and application thereof. The compound takes heptatomic condensed ring benzotriazole (B) with an alkyl chain as intercalated nucleus, and cyan group as n-type fullerene receptor material (BIC) of an electrophilic unit. The preparation method comprises the following steps: by taking 4,7-dibromo-5,6-dinitro benzotriazole compound as a raw material, sequentially introducing thienothiophene with an alkyl chain by stille coupling reaction, then performing loop closing, introducing the alkyl chain to N by nucleophilic substitution, introducing aldehyde group via Vilsmeier-Haack, and then introducing a polar conjugation unit by Knoevenage reaction, so as to obtain a BIC compound; the micromolecule forms definite conformation and good solubility, has an electron receptor unit with universality, obtains a high efficiency (PCE of 13%) on a solar cell, and thus is a photovoltaic material full of potential.

A method for an access system for a vehicle includes the steps of recording a first optical information in a specific area surrounding the vehicle and detecting an object approaching the vehicle as a function of the recorded first optical information. As a function of detecting the approaching object, a second optical information in the surrounding area is recorded, and gesture information of the object is identified as a function of the second optical information. A locking device or door opening device of the access system is triggered as a function of gesture information.

An overvoltage protection system and method including a control circuit and a bank of resistors to absorb the energy from a transient voltage without exceeding an allowed temperature for the resistors. The resistors in the bank are independently switched and configured such that upon detection of an overvoltage condition a combination of the resistors is switched into the circuit to dissipate energy. The resistance introduced by the combination of resistors prevents the voltage from rising to an unacceptable level that may damage the circuit being protected. As time progresses, the control circuit alters the combination of resistors in the bank of resistors so as to increase the effective load resistance value, thereby decreasing a load current.