31results about How to "Sufficient surface area" patented technology

An exemplary exercise device descending from an elevated support (e.g., a bar or door frame) allows a user to insert a body part in a loop (e.g., a foot for pull-ups or a waist for push-ups) descending from an elastic resistance unit, which uses a variable number of stretchable elastic members between top and bottom connectors to reduce the effective weight the user has to pull / push up. Each of the resistance unit top and bottom connectors has several elastic member sockets, each socket having a socket passage extending through the connector. Each elastic member has an elongated portion between two member plugs sized to resist passing through the elastic member socket passages. Elastic members can be removably and replaceably installed by inserting a portion of each member plug within an elastic member socket, one member plug in each of the resistance unit top and bottom connectors.

A strapless brassiere having winged -support structures to maximize surface area of the bra to which an extended-wear adhesive is applied over substantially all of the undersurface of the bra.

The invention discloses a method for preparing a supercapacitor electrode material basic nickel-cobalt carbonate through a hydrothermal method. The method comprises the following steps that metal nickel salt and / or metal cobalt salt and urea are weighed separately and mixed with deionized water, and stirring is performed so that solids can be dissolved to obtain a mixed solution; the mixed solution is poured into a high-pressure reactor, sealing is performed for performing a reaction for 10-16 h under the temperature of 80-110 DEG C, and a reaction product is obtained; the reaction product is separated, washed and dried to obtain basic nickel-cobalt carbonate. According to the method for preparing the supercapacitor electrode material basic nickel-cobalt carbonate through the hydrothermal method, on the basis of control over raw material compatibility and reaction conditions, the three-dimensional porous structure and morphology can be obtained, sufficient wetting and permeation of an electrolyte are promoted, the superficial area of active substances is sufficiently utilized, and the electrochemical performance is improved.

A composite guidewire comprising a proximal wire segment having a proximal end, a distal end and a longitudinal axis extending therebetween, the distal end being formed with a first flat planar bonding face which extends parallel to the longitudinal axis, the proximal wire segment having a first elasticity; a distal wire segment having a proximal end, a distal end and a longitudinal axis extending therebetween, the proximal end being formed with a second flat planar bonding face which extends parallel to the longitudinal axis, the distal wire segment having a second elasticity; wherein the first and second flat planar bonding faces of the proximal wire segment are formed complementary to one another; and further wherein the proximal and distal wire segments are joined together by bonding the first flat planar bonding face to the second flat planar bonding face in an overlapping manner and a method for forming a composite guidewire.

The invention relates to a woven artificial blood vessel, which comprises an artificial blood vessel, which is a spiral corrugation structure having a convex part and a concave part on the inner surface, wherein the convex part and the concave part are formed by coiling long floats (1) at equal interval. The spiral distribution is an inclined corrugation structure. The method for manufacturing the woven artificial blood vessel comprises a spiral corrugation forming procedure and a spiral corrugation shaping procedure and specifically comprises the following steps: 1) performing a film flip method on the tissue including the long floats (1) to obtain a new tissue; 2) taking the tissue as the surface tissue of an artificial blood vessel and the new tissue resulting from the flip as the internal tissue of the artificial blood vessel; and 3) combining the two tissues obtaining from the step 2) into a tissue chart of the artificial blood vessel, loading the tissues onto a machine and weaving the tissues into the artificial blood vessel having a spiral surface; the spiral corrugation shaping procedure comprises loading a corresponding internal or external screw mould on the internal or external side of the artificial blood vessel and performing a thermal shaping treatment in an automatic shaping oven. The invention is capable of solving the problems caused by the corrugation treatment in existing technology, such as the short service life of the artificial blood vessel and the occurrence of thrombus.

A portable electric height adjustable platform assembly, and method of use, the assembly residing on a fixed height desktop to move a computer monitor, keyboard, and mouse between a user's sitting and standing position. The platform assembly comprises: a horizontally positioned platform unit configured for supporting a computer keyboard and mouse; a height adjustable lifting column unit comprising three telescopic sections, affixed vertically to the platform, with the outer section positioned above the platform unit to affix the monitor to, and the middle and inner section extensible below the platform to raise-lower the assembly; a base unit affixed to the bottom end of the lifting column unit, and configured to stabilize the assembly in a vertical position; an electric actuator housed within and able to activate the lifting column unit to vertically extend and collapse the telescopic sections, thus simultaneously raising and lowering the computer monitor, keyboard, and mouse.

The invention discloses a preparation method of a hierarchical porous material-loaded cobalt-based catalyst. The method comprises the following steps: (1) evenly mixing a silicon source, an aluminum source, ethanol, NH3 and H2O at the ratio of 1 to (20-30) to (25-35) to (0.1-0.4) to (1-3), and adding a template agent at the mass ratio of the template agent to the aluminum source being (0.5-1) to 1; (2) putting the mixed liquid obtained from the step (1) into a crystallization kettle lined with polytetrafluoroethylene, filtering, washing, drying and removing the template agent through three-section temperature control roasting; (3) carrying out acid treatment on a carrier precursor to obtain a hierarchical porous carrier; and (4) dipping a saline solution dissolved with cobalt or a saline solution of cobalt and non-noble metal into the hierarchical porous material by adopting an equivalent-volume impregnation method for 10-48 hours, drying at 100-130 DEG C, and roasting at 300-600 DEG C for 4-10 hours, tabletting, and screening to prepare the hierarchical porous material-loaded cobalt-based catalyst.

The invention discloses a preparation method of an active hydrocracking proppant. The method comprises the following steps: (1) adopting amorphous silica-alumina, dry glue powder of macroporous pseudoboehmite, and dry glue powder of nanoscale micropore pseudoboehmite as raw materials, molding the raw materials, and drying the molded raw materials so as to obtain a spherical proppant carrier; (2) preparing a metallic salt solution containing active hydrogenation components; (3) enabling the spherical proppant carrier in the step (1) to load the metallic salt solution containing the active hydrogenation components in the step (2), and drying and calcinating the spherical proppant carrier loading the metallic salt solution so as to obtain the active hydrorefining proppant. The proppant has appropriate specific surface area and pore volume, and has high mechanical strength and high hydrocracking performance.

Primary packages configured for display and sale without secondary packaging are stacked horizontally in a product display tray. The consumer-facing surface of the back panel of the product display tray may contain graphics including product information provided on the primary package's principal display panel (which is typically faced towards consumers). Thus, consumers may readily view the product information provided on the principal display panel as primary packages are removed from the product display tray and principal display panels of remaining primary packages are hidden from view by one or more walls of the product display tray. The individual primary packages may be contoured specifically to inhibit lateral relative shifting while in a horizontally stacked configuration. The individual primary packages may shaped to facilitate grasping by having a first surface contoured for grasping in the user's palm, a second surface opposite the first surface with molded branding information for engagement by a portion of the user's fingers. Molded branding information may be positioned on a surface of the primary package that faces upwardly when the primary packages are positioned in the product display tray.

A physical vapor deposition apparatus includes a vacuum chamber with side walls, a cathode, a radio frequency power supply, a substrate support, a shield, and an anode. The cathode is inside the vacuum chamber, and the cathode is configured to include a sputtering target. The radio frequency power supply is configured to apply power to the cathode. The substrate support is inside and electricallyisolated from the side walls of the vacuum chamber. The shield is inside and electrically connected to the side walls of the vacuum chamber. The anode is inside and electrically connected to the sidewalls of the vacuum chamber. The anode includes an annular body and an annular flange projecting inwardly from the annular body, and the annular flange is positioned to define a volume below the target for the generation of plasma.

Embodiments include electrical leads and methods of using electrical leads that may be used for delivering both cardioversion / defibrillation signals and pacing signals and sensing to target tissue. Some of these embodiments may also be used to sense and transmit electrical signals from target tissue. Some electrical lead embodiments are configured to be delivered into a patient's intrapericardial space by non-invasive methods.

The invention relates to a package (50, 70) for a microelectronic component comprising: a carrier element (12) having a first side (16) containing conductor lines (14); a microelectronic component (20) having a first surface (24) and a second surface (23) facing opposite to the first surface; via said second surface microelectronic components are mounted on said first side and connected via bonding wires (28) to the wires; a polymeric encapsulant (30) encapsulating the bond wires and exposing a central region (40) of the first surface (24), the encapsulant including an outer edge on the first side (36) and an inner edge (38) on said first surface; a dam (42, 44) adjacent to the sealing material; wherein said dam (44) includes a dam (44) on said first side (16) A stepped surface transition (46) on the top, a surface transition adjoining said outer edge (36). The dam (44) affects the formation of the outer (36) and inner (38) edges and enlarges the area of ​​the central region (40) during the manufacture of the sealing material. The invention also relates to a method of manufacturing such a microelectronic component package.

The invention discloses a thermally driven circulation lamp post heat dissipation LED streetlamp provided with two check valves. The LED streetlamp comprises a lamp post, a first connection support, a second connection support and a lamp cap. One end of the first connection support and one end of the second connection support are respectively connected with the lamp post. The other end of the first connection support and the other end of the second connection support are respectively connected with the lamp cap. A condensation section and a liquid storage section are arranged in the lamp post. The lamp post and the first connection support are internally provided with a backflow pipe. An evaporation section is arranged in the lamp cap. A steam pipe is arranged in the second connection support. One end of the backflow pipe is communicated with the liquid storage section. The other end of the backflow pipe is communicated with the steam pipe through the evaporation section. The steam pipe is communicated with the liquid storage section through the condensation section to form a thermally driven circulation loop. A first check valve is arranged on the condensation section, and a second check valve is arranged on the backflow pipe. Heat produced by the LED streetlamp is transferred to the lamp post to be dissipated, other cooling fins are not required additionally, and the LED streetlamp has the advantages of being low in cost, high in reliability of thermally driven circulation and the like.

An electrode catheter is provided with: a shaft (10) having a lumen (11) serving as a fluid passage; an irrigation member (20); and a distal end electrode (30). Irrigation openings (25A) for supplying liquid, which is supplied from the shaft (10), to the surface of the distal end electrode (30) are provided in the irrigation member (20) at equal angular intervals. The distal end of the irrigation member (20) has formed therein liquid guide grooves (26) respectively extending from the irrigation openings (25A) toward the distal end. The distal end electrode (30) has a spherical distal end section (31) including a maximum-diameter section (39) and also has a proximal end section (32). Liquid guide grooves (36) are formed in the surface of the distal end electrode (30), and the liquid guide grooves (36) respectively continue to the guide grooves (26) in the irrigation member (20) and extend toward the distal end until the liquid guide grooves (36) reach at least the maximum-diameter section (39). As a result, the electrode catheter is configured in such a manner that cauterization does not cause an abnormal temperature rise in a part of the distal end electrode, that the surface of the distal end electrode exhibits an excellent cooling effect and an excellent effect of preventing the formation of a thrombus, and that the electrode catheter can perform efficient cauterization treatment.

An electrode catheter is provided with: a shaft (10) having a lumen (11) serving as a fluid passage; an irrigation member (20); and a distal end electrode (30). Irrigation openings (25A) for supplying liquid, which is supplied from the shaft (10), to the surface of the distal end electrode (30) are provided in the irrigation member (20) at equal angular intervals. The distal end of the irrigation member (20) has formed therein liquid guide grooves (26) respectively extending from the irrigation openings (25A) toward the distal end. The distal end electrode (30) has a spherical distal end section (31) including a maximum-diameter section (39) and also has a proximal end section (32). Liquid guide grooves (36) are formed in the surface of the distal end electrode (30), and the liquid guide grooves (36) respectively continue to the guide grooves (26) in the irrigation member (20) and extend toward the distal end until the liquid guide grooves (36) reach at least the maximum-diameter section (39). As a result, the electrode catheter is configured in such a manner that cauterization does not cause an abnormal temperature rise in a part of the distal end electrode, that the surface of the distal end electrode exhibits an excellent cooling effect and an excellent effect of preventing the formation of a thrombus, and that the electrode catheter can perform efficient cauterization treatment.

The invention relates to the technical field of petroleum and natural gas, in particular to an integrated well abandoning operation technology which comprises the following steps: S1, perforation: a rectangular perforating gun enters a well abandoning pipeline needing well abandoning operation, and after the rectangular perforating gun reaches a specified position through computer control, the rectangular perforating gun enters a well abandoning pipeline needing well abandoning operation; a hole of the rectangular perforating gun is used for generating energy-gathered explosion to break down the casing pipe; by means of the rectangular perforating gun, due to the unique groove-shaped structural design, the sufficient surface area is provided for perforation, and compared with explosion perforation, the rectangular perforating gun can obtain a larger flowing sectional area more easily, so that later well cementation cement is squeezed into the cement through pumping, meanwhile, the cement flows into a rectangular groove, and the well cementation efficiency is improved. And after solidification, the fixing effect of cement mortar can be well improved, gaps generated by gas and liquid from a vertical channel can be cut off, and therefore the channel is permanently sealed in a shaft annulus, and the well abandoning operation and the well cementation quality are ensured.

This invention relates to a single-layer expansion water bag used in optical cables. The base material is adhesive-bonded cloth provided by a roll to be soaked in a preformed solution then to be cross linked at site in a reaction drying channel to get the expansion water bag, among which, composition of the preformed solution (in weight portion) is: acrylic acid 40-60, NaoH20-40, acrylamide 3, ethyl 2-methacrylate 3, potassium peroxydisulfate 0.1-0.2, water: 130, crosslinker 0.1 and surface active agent 0.2. The invented preformed solution includes multiple acrylic acid monomers and various aids to ensure that it has rather high water absorption rate to meet the needs of absorption of water bags, the active aids is to make polymers to have enough surface area to reach the absorption rate.

An electrode catheter which has: a catheter shaft (10); and a tip electrode (20) having a spherical portion (21); and is provided with an irrigation mechanism; wherein a plurality of irrigation openings (112) are arranged at a tip reduced-diameter section (10A) of the shaft (10), a plurality of inclined lumens (111) are formed in the interior of the tip reduced-diameter section (10A), and the formula: D2 ≒ D1 +2 (L2·tanalpha-L1·tanbeta) applies, where (D1) is the outer diameter of the catheter shaft (10), (D2) is the diameter of the spherical portion (21), (L1) is the distance from the rear end of the tip reduced-diameter section (10A) to the tip edge of the irrigation openings (112), (L2) is the distance from the tip edge of the irrigation openings (112) to a maximum diameter section of the tip electrode (20), (beta) is the angle of incline of the tip reduced-diameter section (10A), and (alpha) is the angle of incline of the inclined lumens (111), the angle of incline (alpha) being 5.0-12.5° (excluding 9.1-9.3°). According to this electrode catheter, a liquid can be adequately contacted with a tip hemisphere of the tip electrode having the spherical portion.

A physical vapor deposition apparatus includes a vacuum chamber with side walls, a cathode, a radio frequency power supply, a substrate support, and anode, and a shield. The cathode is inside the vacuum chamber and includes a sputtering target. The radio frequency power supply is configured to apply power to the cathode. The substrate support is inside and electrically isolated from the side walls of the vacuum chamber. The anode is inside and electrically connected to the side walls of the vacuum chamber. The shield is inside and electrically connected to the side walls of the vacuum chamber and includes an annular body and a plurality of concentric annular projections extending from the annular body.

The invention relates to kitchen utensils and discloses an efficient heat-conversion cooking pot with the bottom surface being covered by stainless steel and a manufacture method of the cooking pot. The efficient heat-conversion cooking pot comprises a single-layer pot body, an aluminum plate covering the bottom of the pot and a covering stainless steel pot bottom, wherein the aluminum plate is placed at the bottom of the single-layer pot body; the bottom of the single-layer pot body and the aluminum plate are covered through the covering stainless steel pot bottom; a plurality of rings of grooves are arranged at the covering stainless steel pot bottom, the cross sections of the grooves are sine-wave-shaped; and a mock black coating subjected to sand blasting is arranged on the external surface of the covering stainless steel pot bottom. The manufacture method comprises the following steps of: manufacturing the plurality of rings of grooves with the sine-wave-shaped cross sections on the covering stainless steel pot bottom; integrally connecting the single-layer pot body, the aluminum plate and the covering stainless steel pot bottom by welding at high frequency; and softening the aluminum plate at a high temperature, and pressurizing the aluminum plate to be formed under the pressurization of the plurality of rings of grooves, thus forming the bottom-covering pot with the plurality of grooves with the sine-wave-shaped cross sections. The efficient heat-conversion cooking pot has high heat conversion efficiency and large surface area for heating, is uniform in heating and convenient to clean, and can absorb heat.

The invention discloses a thermally driven circulation lamp post heat dissipation LED streetlamp provided with two check valves. The LED streetlamp comprises a lamp post, a first connection support, a second connection support and a lamp cap. One end of the first connection support and one end of the second connection support are respectively connected with the lamp post. The other end of the first connection support and the other end of the second connection support are respectively connected with the lamp cap. A condensation section and a liquid storage section are arranged in the lamp post. The lamp post and the first connection support are internally provided with a backflow pipe. An evaporation section is arranged in the lamp cap. A steam pipe is arranged in the second connection support. One end of the backflow pipe is communicated with the liquid storage section. The other end of the backflow pipe is communicated with the steam pipe through the evaporation section. The steam pipe is communicated with the liquid storage section through the condensation section to form a thermally driven circulation loop. A first check valve is arranged on the condensation section, and a second check valve is arranged on the backflow pipe. Heat produced by the LED streetlamp is transferred to the lamp post to be dissipated, other cooling fins are not required additionally, and the LED streetlamp has the advantages of being low in cost, high in reliability of thermally driven circulation and the like.

The invention relates to a filter screen for removing harmful gas. The filter screen for removing harmful gas consists of a net-shaped structure and permanganate type inorganic particles. According tothe invention, the cylindrical permanganate-type inorganic particles with high mechanical strength are prepared by adopting an extrusion granulation process, and the permanganate-type inorganic particles are combined with the net-shaped structure by adopting a hot melting mode through a hot melt adhesive. Raw materials selected and used in the invention are cheap; a production process is simple and is suitable for large-scale production and manufacturing; and considerable efficiency is obtained in removal of harmful gas, especially formaldehyde.

The invention discloses a preparation method of an active hydrocracking proppant. The method comprises the following steps: (1) adopting amorphous silica-alumina, dry glue powder of macroporous pseudoboehmite, and dry glue powder of nanoscale micropore pseudoboehmite as raw materials, molding the raw materials, and drying the molded raw materials so as to obtain a spherical proppant carrier; (2) preparing a metallic salt solution containing active hydrogenation components; (3) enabling the spherical proppant carrier in the step (1) to load the metallic salt solution containing the active hydrogenation components in the step (2), and drying and calcinating the spherical proppant carrier loading the metallic salt solution so as to obtain the active hydrorefining proppant. The proppant has appropriate specific surface area and pore volume, and has high mechanical strength and high hydrocracking performance.

The invention discloses the application of a hydrophobic material. The hydrophobic material is applied to a biological filler and manufactured into a supporting structure, a baffle or an airflow uniform structure which are applicable to a facultative anaerobic region or an aerobic region of a sewage purification system. The application of the hydrophobic material can improve the contact area and the contact time of a water surface and the air, thereby improving the reoxygenation performance of the biological filler.

A physical vapor deposition apparatus includes a vacuum chamber with sidewalls, a cathode, a radio frequency power supply, a substrate support, a shield, and an anode. The cathode is located inside the vacuum chamber, and the cathode is configured to include a sputtering target. An RF power supply configuration applies power to the cathode. The substrate support is located inside the vacuum chamber and is electrically insulated from the sidewalls of the vacuum chamber. The shield is located inside the vacuum chamber and is electrically connected to the sidewalls of the vacuum chamber. The anode is located inside the vacuum chamber and is electrically connected to the sidewall of the vacuum chamber. The anode includes an annular body and an annular flange protruding inwardly from the annular body, and the annular flange is positioned to define a volume below the target body for generating a plasma.

A purification catalyst for exhaust gas enhances the activities of noble metals, preventing a drop in activities at high temperatures, and exhibiting a satisfactory performance even in low temperature (below 400° C.) operation when starting up or during idling of automobiles. The Pd-based composite oxide contains at least one element selected from alkaline earth metals.

The invention belongs to the technical field of bridge construction earthquake prevention and disaster mitigation, and relates to a high-damping self-resetting shock-absorbing support for a high-speedrailway bridge and a shock-absorbing method. According to the high-damping self-resetting shock-absorbing support for the high-speed railway bridge and the shock-absorbing method, the installation and disassembly of the high-damping self-resetting shock-absorbing support are in basic consistency with the installation and disassembly of a normal pot rubber support, so that construction installation is convenient, later maintenance and changing work are also convenient, the cost of the shock-absorbing support is meanwhile comparatively low, and the shock-absorbing support thus has comparativelygood popularization and application prospects; a sliding plate has a sufficient surface area to provide sufficient vertical supporting force to meet the requirement for a vertical carrying capability; and a first steel wire rope damper is arranged between an upper support and a lower support, the energy consumption performance of high damping of the steel wire rope damper and the self-resetting performance of a friction pendulum support can be used, the shock-absorbing support can be adapted to multidirectional seismic force action, and is suitable for the daily operation of the high-speed railway bridge and a fault-nearing earthquake area, and the shock-absorbing support has a comparatively good application prospect in a fault-nearing area.