355 results about "Rapid expansion" patented technology

Submicron particles of water-insoluble compounds, particularly drugs, are prepared by simultaneously stabilizing microparticulate suspensions of same with surface modifier molecules by rapid expansion into an aqueous medium from a compressed solution of the compound and surface modifiers in a liquefied gas and optionally homogenizing the aqueous suspension thus formed with a high pressure homogenizer.

A method for depositing a substance on a substrate that involves forming a supercritical fluid solution of at least one supercritical fluid solvent and at least one solute, discharging the supercritical fluid solution through an orifice under conditions sufficient to form solid particles of the solute that are substantially free of the supercritical fluid solvent, and electrostatically depositing the solid solute particles onto the substrate. The solid solute particles may be charged to a first electric potential and then deposited onto the substrate to form a film. The solute particles may have a mean particle size of less than 1 micron.

The present invention provides a tampon pledget with one or more of the following properties: increased absorbency rate; high absorbent capacity and fluid retention; rapid expansion potential; and ease of ejection of the pledget from the applicator. Surprisingly, the one or more properties are achieved by using a modified dual cross-pad, folded, compressed tampon pledget design.

A tampon pledget that expands without the aid of moisture or menses. The tampon pledget has a plurality of high resiliency, non-absorbent materials and a plurality of absorbent materials. The tampon pledget has improved comfort as compared to conventional fully compressed tampon pledgets. The tampon pledget preferably has all of its non-absorbent and absorbent materials enclosed in a coverstock. The coverstock may be inverted or turned inside out, prior to filling the coverstock with the plurality of non-absorbent and absorbent materials. The coverstock insertion end, removal end, or both are pleated to further enhance comfort during use. A removal string may be secured to the inverted and pleated coverstock, above the removal end seal, by a top loop slipknot.

An instrument set for an intervertebral expandable spacer having a pair of co-axial annuluses locked together by an engagement member, the set including an inserter/expander having both a rapid expansion mechanism and a fine tuning expansion mechanism.

The invention provides a method for establishing a database cluster by utilizing virtualization, which utilizes the technical advantages of virtualization, ensures that all processing units in the database cluster obtain optimal resources, simultaneously improves the resource utilization rate of a physical hardware, and realizes the rapid deployment, expansion of the database cluster, the dynamic migration, the resource isolation of a multi-cluster system and the dynamic management of system resources, wherein the all processing units in the database cluster obtain optimal resources, i.e. a CPU, a memory and IO resources are customized and allocated in advance for a virtual machine according to the requirements of the processing unit in the database cluster for the resources in an underlying server system of the virtual machine; the improvement of the utilization rate of system resources means that a plurality of virtual machines are deployed and operated on the underlying server system of the virtual machine so as to improve the resource utilization rate of the underlying server of the virtual machine; the rapid deployment and expansion of the database cluster mean that the rapid expansion of the database cluster is realized through the mirroring replication function of a virtualized software; and the dynamic migration means that the dynamic migration of the virtual machine is realized by utilizing the virtualized software, and the service of the database cluster is not interrupted.

There is provided a tampon pledget that expands without the aid of moisture or menses. The tampon pledget has a plurality of high resiliency, non-absorbent fibers and a plurality of absorbent fibers. The tampon pledget has improved comfort as compared to conventional fully compressed tampon pledgets.

The invention discloses a malicious code type detection method based on a cloud mode. The method comprises the following steps that: a cloud terminal carries out processing and analysis on a malicious code family to generate an initial classification database, generates a representative feature set for each category of malicious code family in the initial classification database, an access or execution operation of a program is intercepted at a client, an only identity value of the intercepted program is calculated, whether the only identity value exists in a local database or not is determined, if not, a specific feature document of the intercepted program is extracted, the only identity value and a specific feature document of the intercepted program is uploaded to the cloud terminal by the client, whether the only identity value exists in a cloud terminal database or whether the feature document belongs to a classification is determined, a final determination result is returned to the client, and the only identity value and the final determination result are written into the cloud terminal database and a client database respectively. According to the method, the rapid expansion of a feature library can be slowed down, the upload of suspicious programs is reduced, and the killing prevention efficiency of cloud security is raised.

A modified high efficiency kinetic spray nozzle is disclosed. The modified nozzle has a rapid expansion rate in the diverging region relative to prior art nozzles, which enables one to achieve much higher particle velocities without an increase in the main gas temperature. Preferably, the expansion rate of the supersonic nozzle in a portion of the diverging region is at least 1 mm² per millimeter, more preferably 2 mm² per millimeter, more preferably 5 mm² per mm, with a most preferable expansion rate being 10 mm² per millimeter.

In order to provide an electric heat system that is quieter than those of the prior art, a switching circuit is incorporated into the controls for the heating system which provides for the heating elements of the electric heater to be kept at a more constant temperature than those of the prior art. The switching circuit regulates the output power to the degree desired while not inducing sharp changes in temperature of the coils of the electric heater and thus reduces the degree of rapid expansion and contraction of the coils and the enclosure for the heater. This in turn reduces the amount of mechanical noise produced by the electric heater while also reducing wear and tear on the heating element, the heater enclosure and objects near to the heater.

Medical devices with novel spark gap electrode designs, able to control manually or automatically the electrodes gap are provided. These devices are used to generate a shock wave created by the rapid expansion and collapse of a plasma bubble that is formed between two spark gap electrodes placed in a special liquid medium, when a high differential voltage (kV) is applied to the electrodes. The resulting shock wave impacts a reflector to direct the energy into the body of an animal or a human toward the desired treatment location. This electro-hydraulic principle to create acoustic shock waves as a method of treatment is in use in the medical (lithotripsy, orthopedic use, wound treatment, burns, post-operative treatment, pain treatment, diagnosis, skin and organ transplantation supporting devices, arteriosclerosis treatment), cosmetic (treatment of scars and cellulite) and veterinary (treatment of musculoskeletal disorders) fields.

A method for depositing a substance on a substrate that involves forming a supercritical fluid solution of at least one supercritical fluid solvent and at least one solute, discharging the supercritical fluid solution through an orifice under conditions sufficient to form solid particles of the solute that are substantially free of the supercritical fluid solvent, and electrostatically depositing the solid solute particles onto the substrate. The solid solute particles may be charged to a first electric potential and then deposited onto the substrate to form a film. The solute particles may have a mean particle size of less than 1 micron.

Conventional multi-hop routing of ad hoc wireless networks involves considerations such as costs, connection quality, distances, and numbers of hops. A conventional wireless routing algorithm may fail when a destructive event takes place and is rapidly expanding in area, as the route discoveries may perpetually lag behind the rate of expansion of the destructive area. As typically embodied, the present invention's wireless routing algorithm detects a destructive event early, assumes rapid expansion of the destruction area, establishes “subnets” of nodes, and predetermines one or more routes that circumvent the rapidly expanding destruction area by exiting from and returning to the subnet in which the destructive event originates. Typical inventive practice avails itself of the architectural character of the physical setting for the wireless network, for instance by establishing subnets corresponding to compartments formed by wall-like structures (e.g., shipboard bulkheads), which represent natural barriers to expansion of a destruction area.

The invention provides a pre-welding laser cleaning method and device capable of efficiently removing an aluminum alloy oxidation film. The method includes the steps that S1, a material to be cleanedis prepared, and the oxidation film with the film layer thickness being d0 is arranged on the surface of the material to be cleaned; S2, the material to be cleaned is put onto a three-dimensional moving platform and further located on the focal plane of a focusing lens; S3, the laser beam direction is adjusted to be parallel to the normal direction of the surface of the material to be cleaned; S4,laser parameters are set, laser energy is set and the laser overlap rate is determined; and S5, laser cleaning of the material to be cleaned is conducted, a pulsed laser device emits pulsed lasers toscan the surface of the material to be cleaned, light beams emitted by the laser device pass through the focusing lens and then are absorbed by the oxidation film on the surface of the material to becleaned, matter of the oxidation film is converted into rapid expansion plasmas and is made away from the surface to be removed, and meanwhile shock waves are generated and can turn the oxidation film into fragments to be removed. The aluminum alloy oxidation film can be removed efficiently and effectively.

The invention discloses an enhanced heat transfer system and method, and belongs to the field of micro evaporators. The enhanced heat transfer system is composed of an upper cover plate, a periodic staggered micro-channel array plate and a simulation heat source. A liquid working medium enters the staggered micro-channel array and is heated to generate gas-liquid phase change, the gas-liquid two-phase working medium is periodically divided in the staggered micro-channel array, and meanwhile, five types of enhanced heat transfer modes are realized: (1) the gas-liquid contact area is increased through gas-phase division, so that latent heat exchange is increased; (2) superheated liquid energy is released from more gas-liquid interfaces, so that the interface expansion rate is reduced, and flow and thermal instability caused by rapid expansion of the interface are fundamentally inhibited; (3) bubble segmentation delays heat transfer deterioration caused by the fact that a large-area steam film covers a heating surface; (4) a bubble tail turbulent flow area is increased, and convection heat exchange is enhanced; and (5) periodical separation and re-development of the heat boundary layer of the near-wall area occur through periodical division of the liquid phase, the heat exchange resistance of the near-wall area is remarkable, and convection heat exchange is improved.

The present invention provides a modified rapid expansion method (termed “low-PBMC-REM” or “modified-REM”), for quickly generating large numbers of T lymphocytes, including cytolytic and helper T lymphocytes, without using the large excesses of peripheral blood mononuclear cells (PBMC) or EBV-transformed lymphoblastoid cells (LCL) characteristic of high-PBMC-REM. Clonal expansions of greater than 500-fold can be achieved within a single stimulation cycle of about 8-14 days.