455results about How to "Stable environment" patented technology

A method and system for intelligently directing a search of a peer-to-peer network, in which a user performing a search is assisted in choosing a host which is likely to return fast, favorable results to the user. A host monitor monitors the peer-to-peer network and collects data on various characteristics of the hosts which make up the network. Thereafter, a host selector ranks the hosts using the data, and passes this information to the user. The user then selects one or more of the highly-ranked hosts as an entry point into the network. Additionally, a cache may collect a list of hosts based on the content on the hosts. In this way, a user may choose to connect to a host which is known to contain information relevant to the user's search. The host selector may be used to select from among the hosts listed in the cache.

A mobile communication terminal including a radio frequency identification (RFID) receiver for receiving RFID data in a first format. An operation device converts the RFID data in the first format into a second format. A memory stores the RFID data in the second format. A codec encodes RFID data stored in the memory. A modulator RFID-modulates data output from the codec. An RFID transmitter transmits data output from the modulator to an RFID reader.

Improved methods and devices for performing an endoscopic surgery are provided. Systems are taught for operatively treating gastrointestinal disorders endoscopically in a stable, yet dynamic operative environment, and in a minimally-invasive manner. Such systems include, for example, an endoscopic surgical suite. The surgical suite can have a reversibly-expandable retractor that expands to provide a stable, operative environment within a subject. The expansion can be asymmetric around a stabilizer subsystem to maximize space for a tool and an endoscope to each be maneuvered independently to visualize a target tissue and treat the target tissue from outside the patient in a minimally invasive manner.

A resealable cap (110, 210) for a medicament vial (114, 214) has a base portion (112, 212) formed of vulcanized rubber or like material known for providing a stable environment for the medicament contained within the vial, and a resealable portion (126, 226) overlying the base portion. The resealable portion (126, 226) is made of low-density polyethylene or like material, and can be punctured by a needle or like injection member (140, 282) for dispensing medicament into the vial (114, 214). Prior to filling, the cap (110, 210) is assembled to the vial (114, 214) and the cap / vial assembly is sterilized. Then, a needle (140, 282) is inserted through the cap (110, 210) and medicament is introduced through the needle and into the vial. Upon withdrawal of the needle (140, 282), the penetrated region of the cap (248) is fused by laser (276) or direct heat sealing (264) to hermetically seal the needle hole (294) in the cap.

The present invention provides an effective method for migrating the system services on which applications depend, rather than all of the system services, from a source OS platform to a target platform, in order to provide a suitable and consistent environment for the applications, while reducing the cost of the migration. The migration method further classifies the configurations of system services on different platforms into common configurations and specific configurations to accelerate the determination of the source of a migration error.

Disclosed is a structure and process for incorporating air or other gas as a permanent dielectric medium in a multilevel chip by providing CVD diamond as a semi-sacrificial interlevel and intralevel dielectric material. The semi-sacrificial dielectric is subsequently at least partially removed in an isotropic oxygen etch. A variation of the disclosure includes providing a final, permanent CVD diamond encapsulant to contain the gaseous dielectric medium within the chip.

The present invention provides a thin and flexible device and method of use thereof for pain and wound treatment of a subject. The integrated surface stimulation device may comprise a complete wireless stimulation system in a disposable and / or reusable flexible device for widespread use in multiple therapeutic applications. The invention would be situated on the skin surface of a patient and would be activated so as to reduce the overall occurrence of pain and / or increase wound healing rates. As provided, the device will comprise an integrated power supply and pre-programmable stimulator / control system mounted on the upper face of a flexible polymeric substrate layer. The lower face of the substrate layer will comprise areas of stimulating electrodes, applied using thin film coating techniques. The device can then be applied to the user with a medical grade pressure sensitive adhesive coating provided on the lower face of the substrate layer.

Improved methods and devices for performing an endoscopic surgery are provided. Systems are taught for operatively treating gastrointestinal disorders endoscopically in a stable, yet dynamic operative environment, and in a minimally-invasive manner. Such systems include, for example, an endoscopic surgical suite. The surgical suite can have a reversibly-expandable retractor that expands to provide a stable, operative environment within a subject. The expansion can be asymmetric around a stabilizer subsystem to maximize space for a tool and an endoscope to each be maneuvered independently to visualize a target tissue and treat the target tissue from outside the patient in a minimally invasive manner.

A delivery system and method for percutaneous aortic valve (PAV) replacement and apparatus used therein. A temporary aortic valve comprised of a reversibly expandable occluding means, such as balloons, surrounds a central catheter mechanism. The temporary valve is positioned within the ascending aorta, just above and downstream from the coronary ostia. The occluding means is configured such that, when fully expanded against the aortic wall, gaps are left that promote continuous coronary perfusion during the cardiac cycle. The temporary valve with occluding means substitutes for the function of the native aortic valve during its replacement. The native aortic valve is next dilated, and then ablated through deployment of low profile, elongated, sequentially delivered stents. The ablation stent(s) displace the native valve tissues and remain within the aortic annulus to receive and provide a structure for retaining the PAV. The PAV is delivered, positioned and deployed within the ablation stent(s) at the aortic annulus with precision and relative ease. Ablation of the native aortic valve removes the structural obstacles to precise PAV placement. The temporary aortic valve mediates the hemodynamic forces upon the devices as encountered by the surgeon following native valve ablation. The temporary valve also promotes patient stability through continuous coronary perfusion and a moderated transvalvular pressure gradient and regurgitation. Sequential delivery of low profile PAV components minimize the risk of trauma and injury to vascular tissues. Mathematical considerations for determining the optimum cross-sectional area for the temporary valve blood perfusion gaps are also described.

The present invention provides a data communication technology which is capable of securing flexibly a bandwidth for a traffic that is generated and which enables effective use of access lines or wireless resource. A mobile router uses a plurality of communication means, retains a plurality of narrow band communication routes for communicating with the home agent, and configures a broad band communication route by using the plurality of the narrow band communication routes as a single logical communication route. This enables a bandwidth to be flexibly secured in accordance with the traffic which is generated in the mobile network. In this case, the home agent is enabled to effectively use the access lines by referring to the route information so as to determine the destination address. Furthermore, it is possible to save the wireless resource under the initiative of the user by dynamically connecting to an alternative line or disconnecting a line which is being used in response to a request of the user.

Disclosed is a structure and process for incorporating air or other gas as a permanent dielectric medium in a multilevel chip by providing CVD diamond as a semi-sacrificial interlevel and intralevel dielectric material. The semi-sacrificial dielectric is subsequently at least partially removed in an isotopic oxygen etch. A variation of the disclosure includes providing a final, permanent CVD diamond encapsulant to contain the gaseous dielectric medium within the chip.

Disclosed is a continuous process wherein carbon monoxide, a carbonylatable reactant, and a halide in the gas phase are contacted with a non-volatile catalyst solution comprising an ionic liquid and a Group VIII metal to produce a carbonylation product in the gas phase. The process is useful for the continuous preparation of acetic acid by the carbonylation of methanol.

An apparatus and method for preparing and culturing cells includes a chamber having an inlet and an outlet for introducing culture medium and air. A cell growth substrate placed in the chamber for cells anchored or embedded. The preferred embodiment of invention claims a novel process for controlling the platform form to tilt at one end, to maintain the seesaw and rocking movement for cultured process. The seesaw movement or rocking movement efficiently the nutrition, carbon dioxide and oxygen transfer during cultured process for production of cellular protein products or harvesting the cells.

A method for percutaneous aortic valve (PAV) replacement and a temporary aortic valve used to facilitate the same. The temporary valve is comprised of a reversibly expandable occluding means, such as balloons, surrounding a central catheter mechanism. The temporary valve is positioned within the ascending aorta, just above and downstream from the coronary ostia. The occluding means is configured such that, when fully expanded against the aortic wall, gaps are left that promote continuous coronary perfusion during the cardiac cycle. The native aortic valve is next dilated, and then ablated through deployment of an ablation stent. The ablation stent displaces the native valve tissues and remains within the aortic annulus to receive and retain the PAV. The PAV can then be positioned and deployed within the ablation stent with precision and ease. Ablation of the native aortic valve removes the structural obstacles to precise PAV placement. The temporary aortic valve mediates the hemodynamic forces encountered by the surgeon following native valve ablation. The temporary valve also promotes patient stability through continuous coronary perfusion and a moderated transvavlular pressure gradient. Mathematical considerations for determining the optimum cross-sectional area for the temporary valve blood perfusion gaps are also described.

Improved methods and devices for performing an endoscopic surgery including a system for performing minimally invasive procedures including a flexible catheter having a first lumen, a first flexible tube positioned in the first lumen, and a second flexible tube positioned in the first lumen. The first lumen defines a first space configured and dimensioned to receive an endoscope. The first flexible tube and second flexible tube are fixed at a proximal portion and configured to float within the first lumen of the catheter. First and second flexible guides are slidably positioned within the first and second flexible tubes and dimensioned to receive a first instrument for axial movement therein, the first and second flexible guides movable to an angled position with respect to a longitudinal axis. A working space expanding system positioned at a distal portion of the flexible catheter, the working space expanding system movable from a non-expanded insertion position to an expanded position forming an expanded region to expand the working space within the body lumen.

An electronics enclosure implementing a cooling system and method enables much higher power densities in air-cooled electronic enclosures. The system includes an air streaming or "tunneling effect" ventilation system, including an enclosure that functions as a heat transfer component of the system, that efficiently removes warm air from the interior of the enclosure. The ventilation system comprises an array of intake fans on a first side panel of the enclosure, an array of exhaust fans on an opposing side panel of the enclosure, and a substantially unobstructed channel between the side panels. Additionally, an external heat exchanger is provided that is integrated with the enclosure for dissipation of heat from high-density powered components such as hard drives. The system further includes a thermoelectric cooling module with a heat exchanger and an optional externally ported CPU fan to achieve superior heat dissipation from the CPU.

A method for the isolation of CDRs in a defined framework that is stable and soluble in reducing environment is described as well as thus obtainable scFv. Starting from such scFv with defined framework a scFv library can be generated wherein the framework is conserved while at least one complementary determining region (CDR) is randomized. Such library, e.g. in yeast cells, is suitable for screening for antibody / CDR-interactions or for screening for antibodies.

A bioreactor system includes a housing and a hydrostatic loading module. The housing includes a chamber with an inlet port and an outlet port. The inlet and outlet ports allowing the chamber to be continuously perfused with a culture medium while chamber is hydrostatically loaded.

A method and system for intelligently directing a search of a peer-to-peer network, in which a user performing a search is assisted in choosing a host which is likely to return fast, favorable results to the user. A host monitor monitors the peer-to-peer network and collects data on various characteristics of the hosts which make up the network. Thereafter, a host selector ranks the hosts using the data, and passes this information to the user. The user then selects one or more of the highly-ranked hosts as an entry point into the network. Additionally, a cache may collect a list of hosts based on the content on the hosts. In this way, a user may choose to connect to a host which is known to contain information relevant to the user's search. The host selector may be used to select from among the hosts listed in the cache.

A method, apparatus and program product include an Automatic Testing System for creating a test framework for testing operating system components. The Automatic Testing System resides on a server and includes a master driver which assists in creating test cases and scenarios. The Automatic Testing System issues commands to distribute execution to one or more remote client machines in a cluster through, for instance, an external remote shell program. Results of the command are retrieved, as though it was invoked on the machine directly. The logic and parameters needed to run the test scenarios are stored in a database accessible on the web, and test results are compiled and stored in the database to be sent to any designated test customer.

A method for the isolation of CDRs in a defined framework that is stable and soluble in reducing environment is described as well as thus obtainable scFv. Starting from such scFv with defined framework a scFv library can be generated wherein the framework is conserved while at least one complementary determining region (CDR) is randomized. Such library, e.g. in yeast cells, is suitable for screening for antibody / CDR-interactions or for screening for antibodies.

A catheter adapted for placement in the ascending aorta comprises a central catheter mechanism and a balloon structure or other occluding structure at its distal end. The catheter may be placed over the aortic arch such that the balloon structure is placed in the ascending aorta just above the Sinus of Valsalva and coronary ostia. Once in place, the balloon structure is inflated to control blood flow through the aorta during aortic valve ablation and replacement protocols.

A cellular communication system comprising a plurality of geographically spaced base stations (2) each of which comprises an antenna arrangement (4, 6, 8) per base station sector, each of which antenna arrangements has an antenna element for generating an array of narrow beams (10, 12, 14) covering the sector. Timeslots are simultaneously transmitted over each of the beams so as to generate successive sets of simultaneously transmitted timeslots per sector. The timeslots are each split into multiple orthogonal codes, for example Walsh codes. The communication system additionally comprising a scheduling device (31) for allocating for successive sets of timeslots common overhead channels, including a common pilot channel, which are allocated to the same sub-set of codes of each timeslot in the set. For successive sets of timeslots different data traffic is allocated to the same sub-set of codes of each timeslot in the set. This effectively generates a sector wide antenna beam carrying the common overhead channels and a plurality of narrow beams each of which carry different data traffic. Inter-beam interference is addressed by the application of Adaptive Modulation and Coding and by an inter-beam handoff scheme. The handoff scheme ensures that when an end user equipment is located in a cusp region between adjacent beams the antenna arrangement simultaneously transmits data traffic to that mobile station on at least both of the adjacent beams.

The present invention provides an effective method for migrating the system services on which applications depend, rather than all of the system services, from a source OS platform to a target platform, in order to provide a suitable and consistent environment for the applications, while reducing the cost of the migration. The migration method further classifies the configurations of system services on different platforms into common configurations and specific configurations to accelerate the determination of the source of a migration error.

Provided is an antenna system for satellite communication and a method for tracking satellite signals using the same, in which moving vehicles or vessels can perform a satellite multimedia communication. The method for tracking a satellite signal using the antenna system includes the steps of: a) setting a satellite signal reception environment by performing an electronic tracking in the elevation direction through an electronic beam steering control and performing a mechanical tracking for driving a rotating element in an azimuth direction; and b) stopping a drive of the rotating element in the azimuth direction, and setting a satellite signal transmission environment by using the satellite signal reception environment. According to the present invention, since both one-dimensional phase array control of the elevation and azimuth and one-dimensional mechanical control are used, it is possible to provide the economical and effective system compared with two-dimensional phase array antenna. Further, the satellite tracking speed performance is improved compared with the two-dimensional mechanically controlled antenna.

An optical semiconductor device operable in a 0.6 μm band includes an active layer of GaInNP sandwiched by a pair of GaInP layer with a thickness of about 2 molecular layers or less.

The invention relates to technology field of voltage-controlled oscillator specially a type of voltage-controlled oscillator with automatic range control. It includes: negative resistance type difference structure voltage-controlled oscillator, oscillating range distinguishing circuit, range-controlled feedback diffluence circuit, voltage-controlled oscillator offset circuit and filter circuit, norm current generating circuit and oscillating output buffer circuit, it characterized in that: the oscillating range distinguishing circuit and range-controlled feedback diffluence circuit generate the feedback control signal to adjust the current output by offset circuit to the voltage-controlled oscillator according to the output amplitude of voltage-controlled oscillator, so the output amplitude can be stabled automatically.