213results about How to "Simplify space" patented technology

The present invention relates to a method for assisting with percutaneous interventions, wherein 2D x-ray images of an object region are recorded before the intervention using a C-arm x-ray system or a robot-based x-ray system at different projection angles and 3D x-ray image data of the object region is reconstructed from the 2D x-ray recordings. One or more 2D or 3D ultrasound images are recorded before and/or during the intervention using an external ultrasound system and registered with the 3D image data. The 2D or 3D ultrasound images are then overlaid with the 3D image data record or a target region segmented therefrom or displayed next to one another in the same perspective. The method allows a puncture or biopsy to be monitored with a low level of radiation.

A cascaded electric power converter and a method of operating a cascaded electric power converter are disclosed. The cascaded converter includes: a converter cell including a cell capacitor and at least one phase leg having at least two electric valves, the at least one phase leg being connected in parallel to the cell capacitor; and a control system for controlling the switching of the electric valves of the at least one phase leg. The control system is configured to, upon detection of a need to by-pass the converter cell, control the switching of the electric valves in a manner so that the cell capacitor is short circuited via a phase leg, so as to obtain a current surge through the phase leg, thereby creating a permanent current path through the converter cell.

An occupant posture adjustment device and a pedal device include a pedal adjustment mechanism that changes the inclination of a pedal with respect to a floor panel between a first driving state and a second driving state, and a controller that, in the first driving state, controls the pedal adjustment mechanism such that a back face of the pedal and the floor panel are separated from each other, and in the second driving state, controls the pedal adjustment mechanism such that the back face of the pedal and the floor panel come into contact with each other.

A recirculation fan includes a casing, a covering member, a wind-guiding device, a passive impeller, and an active impeller. The covering member is coupled with the casing to define an accommodation space. The wind-guiding device is disposed on the covering member, and includes a wind-guiding cover and a magnetoresistive structure. The magnetoresistive structure is disposed on the covering member and the wind-guiding cover. The passive impeller is disposed within the accommodation space. The active impeller is disposed within the accommodation space and located beside the passive impeller for generating a wind to drive rotation of the passive impeller and the wind-guiding cover. In response to a magnetic torque resulted from a magnetic vortex of the magnetoresistive structure, a rotating speed of the wind-guiding cover is slowed down.

The invention discloses an oral cavity nursing device. The device comprises a toothbrush with a toothbrush head and a base, wherein a water spray nozzle is formed on the toothbrush head; a water supply mechanism for supplying water to the water spray nozzle of the toothbrush and a drying mechanism for drying the toothbrush head are arranged on the base; and the toothbrush is detachably connected with the water supply mechanism through a water pipe. The invention provides the oral cavity nursing device which can wash the toothbrush while brushing teeth, can completely clean tooth surfaces, toothpaste and stains in slits between teeth, is convenient and practical, can maintain cleanness and sanitation of the toothbrush, and reduces pollution of bacteria on the toothbrush.

The invention discloses a soundproof door. The soundproof door comprises door leaves and door pockets movably connected with the door leaves, wherein an air bag is arranged on one side, opposite to the floor, of each of the door leaves; an air pump is arranged in the door pockets, and the air inlet and air outlet of the air bag are connected with the air outlet of the air pump; a door lock is also arranged on the door leaves, the door lock comprises a first spring bolt and a second spring bolt, also comprises a counter lock connected with the second spring bolt; a second spring bolt box is arranged on the door pockets, the second spring bolt is placed in the second spring bolt box, and an air pump switch contact in contact with the second spring bolt is arranged in the second spring bolt box. The soundproof door has the advantages that the sealing property is good, the service life is long, the structure is simple, the fabrication cost is low, and the maintenance is easy.

The invention provides a file system and a method for improving performances of a web server. The file system comprises a disc space; the disc space comprises a disc metadata area and a disc data area; the disc metadata area comprise a file system supper block, a file directory entry bitmap, a volume information array and a file directory entry; the disc data area comprises a plurality of constant-capacity volumes, wherein each volume comprises a plurality of same-capacity file disc blocks, and each file disc block is used for storing small files in the web server. According to the file system and the method for improving the performances of the web server, which are disclosed by the invention, the disc space management is simplified by aiming at the application environment where the web server saves a great number of small files, so that the file data is continuously stored, and disc fragments are avoided; the disc operation times in file data reading and writing processes are reduced, the API interaction times of the file system are reduced, and the performances of the file system are effectively improved; according to a Hash chain table array, the file positioning process is simplified and accelerated; an IO operation of the file system utilizes an asynchronous mode, so that the problem that the application program is blocked when the IO operation is synchronized is eliminated.

To support interleaving of optical channels and to provide sufficient isolation between such interleaved channels, a circulator (60-62) receives, on an optical fiber (16-18), a broadband signal containing a plurality of adjacent channels. The circulator selectively routes the broadband signal through a filter (64, 66) to isolate, on an individual basis, at least one desired channel. A filtered signal, corresponding to the at least one desired channel, is then output from the filter (64-66) and reflected back into the filter by a mirror (68-70) such that the at least one desired channel is subjected to a second filtering process that further improves isolation of the at least one desired channel. Following this second filtering process, the at least one desired channel is applied to the circulator (60-62) for re-inserting into the optical fiber (16-18), as illustrated in FIG. 6. To mitigate the effects of four-wave mixing in each bidirectional optical fiber, a channel assignment plan ensures that pairs of adjacent channels are assigned on a mutually exclusive basis to at least one of an up-link and a down-link direction.

The invention discloses a cooling type electrical cabinet with the adjustable inner space. The electrical cabinet comprises an electrical cabinet body. Through hole plates are plugged to the left and right side walls of the electrical cabinet body. Through holes are formed in the bottom wall of the electrical cabinet body. A first groove and a second groove are formed in the inner sides of the left and right walls of the electrical cabinet body respectively. A controller is arranged on the inner side wall of the top end of the electrical cabinet body. A pushing plate is arranged in an inner cavity of the electrical cabinet body. The bottom wall of one end of the pushing plate is fixedly connected with one end of a pneumatic cylinder. The cooling type electrical cabinet with the adjustable inner space is simple in structure, due to the addition of the pneumatic cylinder and the pushing plate, the pneumatic cylinder drives the pushing plate to move, and then the space in the electrical cabinet body is decreased; by means of the through hole plates and the through holes, air in the cavity in the electrical cabinet forms circular airflow, then, the cooling intensity is enhanced, and rapid cooling can be achieved; the pushing plate slides in the first groove and the second groove, deflection of the pushing plate is avoided, the side wall of the electrical cabinet body is abraded, and the service life of the pushing plate and the electrical cabinet body is prolonged.

The invention relates to a preparation method of a scratch resistant polyurethane woodenware glossy black finish paint. The finish paint is composed of a resin paint component A and a curing agent component B; wherein the weight ratio of the component A to the component B is 1:0.5; the resin paint component A is composed of alkyd resin, acrylic resin, aldehyde-ketone resin, carbon black color paste, a chelating leveling agent, an antifoaming agent, an anti-settling agent, and a solvent; and the curing agent component B is composed of a TDI-HDI mixed trimer or a TDI/TMP adduct, a HDI trimer, and a solvent. The prepared finish paint has the advantages of high hardness, low viscosity, and good leveling property. The finish paint can form a membrane at a time, the membrane is thick, and no sag is generated. The paint has high gloss and a transparent crystal appearance like a black jade. The paint membrane is like a crystal, is thick and smooth, gives people a high quality sense, has a decoration effect like a mirror, and creates a fresh, grace, concise, and tranquil space. A refreshing unique feeling is created by the finished paint which is accord with the modern aesthetics, so the finish paint is welcomed by market and customers. The finish paint can be used to decorate and protect the surfaces of woodenware, metal products, and plastic products.

The invention discloses a workbench, comprising: a folding base comprising a left support frame and a right support frame cross connected with each other by a pivot and a handle rod connected with tops of the left support frame and the right support frame; a movable plate fixed on the left support frame and provided with at least one first fixing hole; a fixed plate fixed on the right support frame and provided with at least one second fixing hole; the movable plate and the fixed plate are spread out on the upper surface of the folding base as the left support frame and right support frame are unfolded; and the movable plate and the fixed plate are folded downwards along both sides of the handle rod as the left support frame and the right support frame are furled. The present invention allows the workbench to be folded by folding downwards the movable plate and the fixed plate, such that the workbench occupies less space and the folded workbench is more secure. The additional first fixing hole and second fixing hole on the workbench effectively stabilize workpieces.

A lens barrel includes a first drive mechanism which rotates a cam ring to move a cam-driven lens frame, holding a lens group, in accordance with a cam groove; a second drive mechanism which screw-engages a nut with a feed screw, biases a nut-driven lens frame to abut the nut, and moves the nut-driven lens frame. The cam-driven lens frame is positioned adjacent to the nut-driven lens frame on a reverse side to the biasing direction, and driving ranges of these lens frames partially overlap each other. The first drive mechanism includes a cam-driven member, separate from the cam-driven lens frame, which is linearly guided and provided with a cam follower which engages with the cam groove of the cam ring; and a biasing member which biases the cam-driven lens frame to abut against the cam-drive member, so that the cam-driven lens frame moves with the cam-driven member.

System for testing a group of functionally independent memories (102) and for replacing failing memory words of the group of functionally independent memories (102) by redundant memory words, comprising: redundancy means 108) including at least one array of redundant memory words (108a) and address registers (108b) connected to at least one array of redundant memory words (108a); a test means (114); a group of first multiplexers (110) following the test means (114) and preceding the memories (102) and the at least one array of redundant memory words (108a); and a group of second multiplexers (112) following the memories (102) and the at least one array of redundant memory words (108a), wherein each second multiplexer (112) is connectable to the test means (114).

The present invention relates, in general, to a microrobot system for intravascular therapy and, more particularly, to a microrobot system for intravascular therapy, which removes thrombus, clots and occlusions that are clogging blood vessels using the fast rotary power of a spherical microrobot having protrusions, thus treating clogged blood vessels.

The microrobot system for intravascular therapy according to the present invention includes a spherical microrobot unit (100′) including a magnet having an arbitrary magnetization direction and having protrusions formed on a surface thereof. An electromagnetic field generation unit (200) sets an alignment direction and a locomotion direction of the microrobot unit to arbitrary directions in the 3D space, generates magnetic fields, and then drives the microrobot unit so that the microrobot unit is rotated by itself or is propelled in the locomotion direction. An imaging unit (300) captures an X-ray image and then tracking a location of the microrobot unit.

A structural element for a fuselage cell structure of an aircraft, in particular a stringer profile or an annular former segment, the structural element being made from a composite material, in particular from a carbon-fibre-reinforced epoxy resin. The structural element comprises at least one positioning aid for facilitating position determination by means of a measuring system. A laser measuring system and/or a tactile measuring system may be used as a measuring system. As a result of the reflector which can be attached to the positioning aid without clearance as a target for the laser measuring system, which is preferably a laser tracker, a spatial position of the structural element in relation to a further component can be determined very precisely and without contact. Following position determination and orientation of the structural element, the reflector can be removed from the positioning aid.

A substrate holder stocker device capable of reducing foot print is provided. The device includes: a movable table A which holds a plurality of substrate holders side by side in a plate thickness direction thereof and moves back and forth; a movable table B which is provided parallel to the movable table A and holds a plurality of the substrate holders side by side in a plate thickness direction thereof, and which moves back and forth; and an inter-table transfer mechanism for allowing the substrate holder which is held by one of the movable tables A and B stopped at predetermined positions to be held by the other of the movable tables A and B.

The invention relates to an ammonia gas automatic-supplying method of a solid ammonia system heated by using engine waste heat. The ammonia gas automatic-supplying method of the solid ammonia system heated by using the engine waste heat is characterized in that heating is conducted on an ammonia storage material main container and an ammonia storage material supplying container through a heating unit, when reaching a desorption temperature, ammonia materials in the main container release ammonia gas; and a pressure P1 in the ammonia storage material main container reaches a working pressure, a reducing-agent metering control unit DCU conducts metering on the ammonia gas, and the jet quantity of the ammonia gas is metered according to engine operating parameters (rotate speed, fuel consumption and the like) transmitted by an engine ECU. The ammonia gas is jetted into an exhaust pipe from the front end of an SCR catalytic converter, the ammonia gas and engine exhaust gas are mixed sufficiently, and under the effect of a catalyzer, NOx is decontaminated into harmless water and a nitrogen gas; and by utilizing the principle of the pressure difference formed between the pressure P1 in the ammonia storage material main container and a pressure P2 in the ammonia storage material supplying container, the ammonia gas automatic-supplying system convenient to achieve is designed; and the problem that the cruising capacity of an existing vehicle-mounted ammonia source is low is solved, and the ammonia gas automatic-supplying method of the solid ammonia system heated by using the engine waste heat is ingenious in idea, convenient to implement, high in reliability and good in economic efficiency.

The invention relates to a preparation method of non-benzene odor-less type scratch-resistant polyurethane woodware light white finish which is composed of a component A and a component B in a weight ratio of 1 to 0.5, wherein the component A consists of non-benzene odor-less type alkyd resin, acrylic resin, aldehyde-ketone resin, titanium dioxide, a dispersing agent, an anti-yellowing agent, a chelation flatting agent, a defoaming agent, an anti-settling agent and a solvent; the component B is a non-benzene curing agent which mainly comprises TDI (toluene diisocynate), HDI (hexamethylene diisocyanate) tripolymer or an addition product. The odor-less type PU (polyurethane) light white finish prepared by the preparation method does not contain aromatic hydrocarbon aldehyde ketone and heavy metals, and does not have smell residue after being varnished for 48 hours. A varnished film is high in gloss, as beautiful as a white jade, crystal clear and thick and textured, has decorative effects of being smooth and as bright as a mirror, so that a clean, elegant, simple and quiet space is created to bring relaxed and happy unique enjoyment for a user, and thus, the non-benzene odor-less type scratch-resistant polyurethane woodware light white finish is very popular to the market and a client. Besides, the non-benzene odor-less type scratch-resistant polyurethane woodware light white finish is widely applied to surface protection and decoration of products such as woodware, metals and plastics.