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36results about How to "Increase effective size" patented technology

System and method for utilizing compression in database caches to facilitate access to database information

A system and method are disclosed for utilizing compression in database caches to facilitate access to database information. In contrast with applying compression to the database that is stored on disk, the present invention achieves performance advantages by using compression within the main memory database cache used by a database management system to manage data transfers to and from a physical database file stored on a storage system or stored on a networked attached device or node. The disclosed system and method thereby provide a significant technical advantage by increasing the effective database cache size. And this effective increase in database cache size can greatly enhance the operations-per-second capability of a database management system by reducing unnecessary disk or network accesses thereby reducing data access times.
Owner:ACTIAN CORP

Methods for Preparing Therapeutically Active Cells Using Microfluidics

ActiveUS20190071639A1Process stabilityFacilitate size-based microfluidic separationPeptide/protein ingredientsLaboratory glasswaresMicrofluidicsMedicine
The present invention is directed to the use of microfluidics in the preparation of cells and compositions for therapeutic uses.
Owner:THE TRUSTEES FOR PRINCETON UNIV +2

Box-type transformer substation

The invention discloses a box-type transformer substation. The box-type transformer substation comprises a substrate and a box body, wherein the box body is arranged above the substrate; a top cover is connected above the box body; the top cover comprises a lower top cover fixedly connected above the box body, and an upper top cover installed on the lower top cover; the lower top cover comprises a longitudinal wall, and a slope wall fixedly connected with an upper end of the longitudinal wall; an external end of the slope wall is formed into an extension wall positioned outside the longitudinal wall; the upper top cover comprises a ventilating wall having a rectangular frame form, and an upper sealing plate fixedly connected with the upper end of the ventilating wall; the external end of the upper sealing plate is formed into the extension wall outside the ventilating wall; air vents are uniformly formed in the ventilating wall; axial flow fans are installed at positions, corresponding to a transformer chamber and a low voltage chamber, above the box body; top cover pushing rods which are longitudinally arranged are further installed at the positions, corresponding to two end portions of the upper sealing plate, above the top cover; and output rods of the top cover pushing rods are fixedly connected with the upper sealing plate of the upper top cover. The box-type transformer substation disclosed by the invention is compact in structure, reasonable in design, convenient in construction and good in heat dissipation effect.
Owner:HANGZHOU GUANGYIN POWER EQUIP IND CO LTD

Antenna design using a high index, low loss material

Antenna elements and systems and other radio and microwave frequency devices are constructed with a high index of refraction medium having high matched values of relative permeability and relative permittivity, and a low loss tangent. By making the permeability of the transmission medium substantially equal to its relative permittivity, the impedance of the material is matched to that of the surrounding free space or air. By immersing a radiating element in such a material, and / or by using such a material between adjacent radiating elements or between a radiating element and a reflective ground plane, the physical size and / or the spacing of the elements may be substantially reduced without appreciable performance loss, thereby resulting in a more compact device that is particularly desirable for mobile applications. At least one exemplary such material is formed in layers and has electrical properties which are anisotropic and homogeneous and which vary as a function of frequency; the layers of such a material are preferably oriented such that the particular frequencies of radiation propagating through each layer are presented with high matched values of relative permittivity and relative permeability, and low values of dielectric and magnetic loss tangents.
Owner:NORTHROP GRUMMAN SYST CORP

Waterproof box-type substation

The invention discloses a waterproof box-type substation, which comprises a base and a box body, wherein the box body is arranged at the upper part of the base; the upper part of the box body is connected with a head cover; the head cover comprises a lower head cover fixedly connected with the upper part of the box body and an upper head cover arranged on the lower head cover; the lower head cover comprises a longitudinal wall in a rectangular frame shape and a slope wall fixedly connected to the upper end of the longitudinal wall; the lower end part of the longitudinal wall is fixedly connected with a horizontally arranged transverse cover wall; a limiting bayonet is formed in the lower surface of the upper end of the slope wall; the inner end of the transverse cover wall tightly abuts on the upper edge of the box body; the transverse cover wall is fixedly connected with the box body through a bolt; the transverse cover wall is provided with a plurality of strip-shaped lower exhaust outlets in the wall surface of the outer side of the upper edge of the box body; and the lower exhaust outlets are horizontally arranged along the transverse cover wall at equal intervals. The waterproof box-type substation is compact in structure, reasonable in design, convenient to construct and good in cooling effect.
Owner:山东恒东实业集团有限公司

Polymorphic one time pad matrix

The present invention provides a simple and efficient cipher and key generation and selection capability from a predetermined, randomly changing, fixed size matrix (N) of ciphers and keys resulting in a very high-order approximation (Nr,c→∞) of a true One Time Pad for encryption solutions such as the CipherLoc Polymorphic Key Progression Algorithmic Cipher Engine. The ciphers are randomly selected from a pool of user supplied ciphers, FIPS 140-2 or other certified ciphers and the keys are produced from various methods for generating a key that includes reading a data stream from a network or a Cryptographic Pseudo Random Number Generator (CPRNG) / Pseudo Random Number Generator (PRNG) or a Predetermined Cryptographic Key Generator (PCKG) or any combination of all. Ciphers and generated keys are randomly paired and stored in a volatile matrix for use by an encryption solution. When used with the CipherLoc Polymorphic Key Progression Algorithmic (PKPA) Cipher Engine, the OTP Matrix is a method of accomplishing the generation of the key and the selection and association of a suitable cipher with that key, for each sub-message, such that not only key space and equivalent keys (isomorphs) become important, but, the number of keys are also important, thus increasing the effective size of the key space in each sub-message.
Owner:CIPHERLOC CORP

Broadband omnidirectional antenna

The invention discloses a broadband omnidirectional antenna, comprising a floor and a radiator. The radiator is fixed on the floor. The floor is provided with a crack. The length of the crack is smaller than that of the floor. By providing the crack in the floor, the effective dimension of the floor is increased, so that the working bandwidth of the antenna is increased without increasing the physical dimension of the antenna, and the manufacturing cost is reduced at the same time.
Owner:GCI SCI & TECH

Wide-angle telephoto imaging optical system

ActiveCN112068285ALarge total focal lengthAchieve focal length imagingOptical elementsOptic systemAnterior lens
A wide-angle telephoto imaging optical system is composed of a front lens group with negative focal power and a rear lens group with positive focal power which are sequentially arranged from an objectside to an image side. The front lens group is composed of a negative first lens, a negative second lens and a positive third lens. The rear lens group is composed of a positive fourth lens, a negative fifth lens, a positive sixth lens and a negative seventh lens. A diaphragm is located between the front lens group and the rear lens group. The imaging system meeting the conditional expression ofthe invention can obtain a larger focal length while meeting a larger field angle.
Owner:北京华力必维科技股份有限公司 +4

High-performance asphalt pavement regenerant and preparation method thereof

ActiveCN111410848AImproved thermal stabilityImprove long-term aging performanceBuilding insulationsChemistryProcess engineering
The invention provides a high-performance asphalt pavement regenerant and a preparation method thereof. The high-performance asphalt pavement regenerant is prepared from, by weight, 60-70 parts of anactivating component, 5-10 parts of a permeating component, 10-15 parts of a plasticizing component, 8-15 parts of a modifying component and 3-6 parts of an anti-aging component, and the sum of the weight parts of the raw materials is 100 parts. According to the invention, the synergistic combination of thermal stability substances is used as an activating component to replace the traditional aromatic hydrocarbon oil activating component, so that the thermal stability of the regenerant can be greatly improved, and the long-term aging performance of the regenerated mixture can be improved. Theselected surfactant enables the asphaltene association structure to be deassociated, and dissolution and dispersion of asphaltene are promoted. The preparation process is simple, raw materials are wide in source, starting from the asphalt aging mechanism, activation and performance blending of aging components are considered, and the prepared regenerant is excellent in pavement performance and wide in application prospect.
Owner:山西省高速公路集团有限责任公司

A waterproof box-type substation

The invention discloses a waterproof box-type substation, which comprises a base and a box body, wherein the box body is arranged at the upper part of the base; the upper part of the box body is connected with a head cover; the head cover comprises a lower head cover fixedly connected with the upper part of the box body and an upper head cover arranged on the lower head cover; the lower head cover comprises a longitudinal wall in a rectangular frame shape and a slope wall fixedly connected to the upper end of the longitudinal wall; the lower end part of the longitudinal wall is fixedly connected with a horizontally arranged transverse cover wall; a limiting bayonet is formed in the lower surface of the upper end of the slope wall; the inner end of the transverse cover wall tightly abuts on the upper edge of the box body; the transverse cover wall is fixedly connected with the box body through a bolt; the transverse cover wall is provided with a plurality of strip-shaped lower exhaust outlets in the wall surface of the outer side of the upper edge of the box body; and the lower exhaust outlets are horizontally arranged along the transverse cover wall at equal intervals. The waterproof box-type substation is compact in structure, reasonable in design, convenient to construct and good in cooling effect.
Owner:山东恒东实业集团有限公司

A dislocation type three-dimensional metamaterial transparent absorber

ActiveCN110581365BGood electromagnetic absorption characteristicsGood light transmittance characteristicsAntennasEngineeringMechanical engineering
The invention discloses a dislocation-type three-dimensional metamaterial transparent absorber. Several structural units are periodically and continuously distributed in two dimensions. Each structural unit includes an upper structure and a lower structure. The upper structure includes dislocations arranged in two rows. Hollow cylindrical units, the first row includes two complete hollow cylindrical units arranged in gaps, the second row includes the right half structure of the hollow cylindrical units arranged in sequence, a complete hollow cylindrical unit and The left half structure of the hollow cylinder unit, the three are arranged with a certain gap; the lower structure includes the substrate layer and the backplane layer; the side wall of the hollow cylinder structure is used as a support layer, and the inner side is used to attach a conductive film layer; the structural unit Made of transparent material. The present invention uses a two-dimensional three-dimensional hollow cylinder unit arrangement structure that can generate multi-resonance with space electromagnetic waves, so that the absorber has the characteristics of broadband absorbing, thereby solving the problem that the current absorber cannot take into account both broadband absorbing and high visible light The issue of transmittance.
Owner:XIHUA UNIV

A box type substation

The invention discloses a box-type transformer substation. The box-type transformer substation comprises a substrate and a box body, wherein the box body is arranged above the substrate; a top cover is connected above the box body; the top cover comprises a lower top cover fixedly connected above the box body, and an upper top cover installed on the lower top cover; the lower top cover comprises a longitudinal wall, and a slope wall fixedly connected with an upper end of the longitudinal wall; an external end of the slope wall is formed into an extension wall positioned outside the longitudinal wall; the upper top cover comprises a ventilating wall having a rectangular frame form, and an upper sealing plate fixedly connected with the upper end of the ventilating wall; the external end of the upper sealing plate is formed into the extension wall outside the ventilating wall; air vents are uniformly formed in the ventilating wall; axial flow fans are installed at positions, corresponding to a transformer chamber and a low voltage chamber, above the box body; top cover pushing rods which are longitudinally arranged are further installed at the positions, corresponding to two end portions of the upper sealing plate, above the top cover; and output rods of the top cover pushing rods are fixedly connected with the upper sealing plate of the upper top cover. The box-type transformer substation disclosed by the invention is compact in structure, reasonable in design, convenient in construction and good in heat dissipation effect.
Owner:HANGZHOU GUANGYIN POWER EQUIP IND CO LTD

Size maximization rapid cutting method for steel plate in abnormal rolling state

The invention discloses a size maximization rapid cutting method for a steel plate in an abnormal rolling state. The method comprises the following steps that S1, the shape and direction of a camber of the abnormally rolled steel plate is judged, and whether an abnormal incoming steel plate can meet the cutting contract size or not is judged; S2, whether the camber of the abnormally rolled steel plate is a same-direction camber or a head-tail camber: when the camber of the steel plate is the same-direction camber, segmented flame cutting is adopted, and when the camber of the steel plate is the head-tail camber, flame cutting is carried out along the bending direction, before flame cutting, through angle adjustment and calculation, the effective size of the cut steel plate in the length direction and the width direction is increased, and size maximization rapid calculation of the steel plate before cutting is carried out; and S3, after size maximization rapid calculation of the steel plate, specific cutting operation of the optimized cutting technology is carried out on a cutting site. According to the method, the shape and direction of the camber of the rolled abnormal steel plate are judged firstly, the flame cutting line snapping mode is changed, the effective size in the length direction and the width direction is obviously increased by adjusting the angle along the bent side of the abnormal steel plate, and then maximum size cutting is achieved in the aspects of finished product yield, steel plate size rescue rate and contract rescue rate, and by utilizing the technology, the improvement can be achieved to a great extent.
Owner:BAOSTEEL ZHANJIANG IRON & STEEL CO LTD
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